JP2019039743A - Deformation tester - Google Patents

Abstract

To provide a deformation tester that allows a planar test piece to be repeatedly bent with a small bend radius and elongated.SOLUTION: Provided is a deformation tester comprising: a first mounting plate having a first mounting face to which a test piece is attached and a first edge that is an edge of the first mounting plate present on a first line segment; a second mounting plate having a second mounting face to which a test piece is attached and a second edge that is an edge of the second mounting plate present on a second line segment; support means for supporting the first mounting plate and the second mounting plate in such a way that the first line segment and the second line segment are parallel to each other and retain relative positions so that a space for the test piece to be spread is formed between the first edge and the second edge, the first mounting plate is rotatable around the first line segment relatively to the second line segment, and/or the second mounting plate is rotatable around the second line segment relatively to the first line segment; and rotational means for causing the first mounting plate to rotate around the first line segment relatively to the second line segment and/or causing the second mounting plate to rotate around the second line segment relatively to the first line segment.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a deformation tester, and more particularly, a deformation tester that deforms a test body such as a thin glass plate or a resin plate used for a flexible display such as a substrate of a mobile phone or an organic EL, and tests its durability. It relates to test equipment.

There has been known a deformation tester for testing the durability of a surface test body such as a thin glass plate or a resin plate used for a flexible display such as a substrate of a mobile phone or an organic EL. For example, see Patent Literature 1 to Patent Literature 5).
Patent Document 4 performs a torsion (twisting) test repeatedly on a planar specimen.
Patent Document 2 and Patent Document 5 perform a test in which a planar test body is repeatedly bent or stretched repeatedly.
Patent Document 3 performs a test in which a sheet-shaped test body is suspended in a U shape, one is fixed, and the other is moved up and down to move a bent portion in the test body.

  Patent Document 1 states that “a bending test can be performed by a machine, and even if the curvature radius and arc length of the bending are different, the machine can be operated with a slight adjustment” (Patent Document) Specifically, “a fixed wall and a moving wall are provided opposite to each other in a substantially rectangular frame, and a mounting portion for attaching a workpiece on the top of both walls is provided on the fixed wall and the moving wall. In contrast, it is provided so as to be able to rotate in a vertical plane, and both ends of the leaf spring are attached to both attachment parts in addition to the work and passed to the bent state between the fixed wall and the moving wall to fix the moving wall. A “folding tester” (paragraph number 0006 of Patent Document 1) is disclosed in which a workpiece is repeatedly bent at a distance from the wall. According to the bending tester of Patent Document 1, “a work such as a thin glass plate or a resin plate is passed between the fixed wall and the moving wall in a bent state, and the work is repeated by bending the moving wall away from the fixed wall. At this time, the shape requirements such as the curvature radius of the workpiece curvature may be changed, but this can be achieved by changing the stroke by the actuator that moves the moving wall and the initial position of both walls. In addition, the mounting part for attaching the workpiece can be rotated in the vertical plane with respect to the moving wall or fixed wall (it can be tilted toward the other side), so that it can respond to stroke changes without leaving internal stress. Furthermore, the speed of the curve must be adjustable, but this can be done by changing the speed of the actuator "(paragraph number 0008 of Patent Document 1). That.

Japanese Patent Laid-Open No. 2006-80694 Japanese Patent Laid-Open No. 2006-42048 JP2013-125002A JP 2013-64658 A JP2013-57538A

Thin glass plates and resin plates used for flexible displays such as mobile phones and organic EL substrates are folded with a very small bending radius when they are incorporated in products. It may be repeated or extended. For this reason, as a durability test, there is an increasing demand for a deformation test in which only a predetermined part of a planar test specimen is bent or extended with a small bending radius.
The deformation test in which such a planar test body is repeatedly bent and extended can be performed by the apparatuses described in Patent Document 1, Patent Document 2, and Patent Document 5, and among these, Patent Document 2 and Patent According to Document 5, there is a problem that the bending radius of the bent portion of the test body cannot be made smaller than a certain degree because other members are sandwiched between the bent portions of the test body.
And, in the bending tester disclosed in Patent Document 1, the leaf spring is: “The leaf springs 12 having the same length as the workpiece 4 are fixed to the mounting portions 5 and 6 by bolts 20 on both outer sides of the workpiece 4. This is because the leaf spring 12 has a property of becoming a uniform radius of curvature when it is bent, and can be made to follow the curvature of the workpiece 4. That is, the leaf spring 12 is provided on both outer sides of the workpiece 4. Is provided so that the work 4 bends uniformly (paragraph number 0015 of Patent Document 1). Since the radius of curvature of the leaf spring 12 changes together with the radius of curvature of the workpiece 4 (test body), it decreases as the radius of curvature of the workpiece 4 (test body) decreases. For this reason, if it is going to make the curvature radius of the workpiece | work 4 (test body) small, since the leaf | plate spring 12 will not respond | correspond to the curvature of the curvature radius (for example, the leaf | plate spring 12 will fold), the curvature minimum radius of the leaf | plate spring 12 will be carried out. Will determine the lower limit of the radius of curvature in the curvature test. This causes a problem that in an electronic device such as a smartphone or a mobile phone, it cannot be sufficiently tested whether the specimen can withstand repeated bending with a small bending radius that the leaf spring 12 cannot withstand.
Therefore, an object of the present invention is to provide a deformation tester that can repeatedly bend or extend a planar specimen with a small bending radius. .

  The deformation tester according to the present invention (hereinafter referred to as “the present tester”) includes a first attachment surface to which a test body is attached and a first edge that is an edge of the first attachment surface existing on the first line segment. A second mounting plate having a first mounting plate, a second mounting surface on which the specimen is mounted, and a second edge that is an edge of the second mounting surface on the second line segment. And the first line segment and the second line segment are parallel to each other and maintain a relative position so that a gap is formed between the first edge and the second edge. The first mounting plate can be rotated about the first line segment relative to the second line segment, and / or the second mounting plate can be second relative to the first line segment. Support means for supporting the first mounting plate and the second mounting plate so that the first mounting plate and the second mounting plate are relatively movable with respect to the second line segment so as to be rotatable about the line segment. Pivoted around , And / or a rotating means for rotating about a relatively second segment of the second mounting plate with respect to the first segment, becomes comprise a modified tester.

The tester generally includes a first mounting plate, a second mounting plate, support means, and rotation means.
The first mounting plate has a first mounting surface and a first edge that is an edge of the first mounting surface. The first mounting surface is a surface on which the test body is mounted. For example, a test body having a main surface such as a sheet shape, a film shape, a film shape, a plate shape, etc., and a part of the main surface is the first mounting surface. It is attached to the surface by bonding or the like. The first edge is an edge of the first attachment surface and is a straight edge existing on the first line segment.
The second mounting plate has a second mounting surface and a second edge that is an edge of the second mounting surface. The second mounting surface is a surface on which the test body is mounted. For example, a test body having a main surface such as a sheet shape, a film shape, a film shape, a plate shape, etc., and a part of the main surface is the second mounting surface. It is attached to the surface by bonding or the like. The second edge portion is an edge portion of the second mounting surface and is a straight edge existing on the second line segment.
A test body is mounted on the first mounting surface of the first mounting plate and the second mounting surface of the second mounting plate, and the test body is bridged between the first edge and the second edge. It is.

The support means is (a) being capable of rotating the first mounting plate relative to the second line segment around the first line segment, and (b) the second mounting plate relative to the first line segment. The first mounting plate and the second mounting plate are supported so that one or both of them can be relatively rotated about the second line segment. At this time, even if one or both of the rotations of (a) and (b) occur, a gap is formed between the first edge and the second edge, and the first line segment is formed. And the second line segment are parallel to each other and the relative positions of both line segments are maintained. In addition, the relative position of both line segments of the first line segment and the second line segment is the distance between the two line segments or the position of the other line segment in relation to the parallel direction of the two line segments (the one is When the translation is performed such that the other is included in the straight line including the other, the other position of the translation with respect to the one is included.
The rotating means is (c) rotating the first mounting plate relative to the second line segment relative to the first line segment, and (d) rotating the second mounting plate relative to the first line segment. One or both of the relative rotation about the second line segment is executed.

  Thus, the test body was attached to the first mounting surface and the second mounting surface, and the test body was bridged between the first edge of the first mounting surface and the second edge of the second mounting surface. In the state, the first line segment that defines the first edge and the second line segment that defines the second edge are parallel to each other and the relative position is maintained, and the first mounting plate is moved to the second line segment. By rotating relative to the first line segment and / or rotating the second mounting plate relative to the first line segment around the second line segment. It is possible to prevent or reduce the force applied to the test body other than the test body causing bending (for example, the force that the test body bends unexpectedly and unevenly, the force that pulls the test body, or the compression force) (patents) Without using the leaf spring 12 in Document 1, it is possible to prevent or reduce the force other than the test body causing the intended bending to be applied to the test body. In addition, both edges can be easily brought close to each other until the distance between the first edge and the second edge becomes a minimum (theoretically can be as close as possible to 0). The specimen can be repeatedly tested by bending and extending it at any small bending radius.

In this tester, the reference surface and the first mounting surface are planes that are perpendicular to the plane including the first line segment and the second line segment and that have the same distance from the first line segment and the distance from the second line segment. The rotating means may rotate the first mounting plate and the second mounting plate so that the angle formed by and the angle formed by the reference surface and the second mounting surface are equal.
By doing so, the first mounting surface and the second mounting surface on which the test body is mounted so that the angle formed by the reference surface and the first mounting surface is equal to the angle formed by the reference surface and the second mounting surface. Since the mounting surface is rotated (centered around the first and second line segments), the specimen is bent in the same way on both sides of the reference plane, preventing or reducing the specimen from being bent unexpectedly and unevenly. Can be made. The reference plane is a plane perpendicular to the plane including the first line segment and the second line segment and parallel to the first line segment and the second line segment, and the distance from the first line segment and the second line segment are the same. The plane is the same distance from the line segment.

In the present tester, the support means has the first mounting plate mounted directly or indirectly so as to be rotatable around the first straight line including the first line segment, and the second straight line including the second line segment. The second mounting plate is mounted directly or indirectly so as to be rotatable around the frame, and has both edge portion positional relationship holding means for maintaining a constant distance between the first straight line and the second straight line (hereinafter referred to as “both The edge position relationship holding means may be referred to as “this tester”.
The support means is such that the first line segment and the second line segment are parallel to each other and maintain a relative position so that a gap is formed between the first edge and the second edge over which the specimen is bridged. However, the first mounting plate can be rotated around the first line segment relative to the second line segment, and / or the second mounting plate can be moved relative to the first line segment. The first mounting plate and the second mounting plate are supported so as to be rotatable about the second line segment, but the support means may have both edge portion positional relationship holding means. . That is, the both edge portion positional relationship holding means is mounted around the first straight line (including the first line segment) with respect to the first mounting plate, although the first mounting plate and the second mounting plate are mounted directly or indirectly. The first mounting plate is movably mounted directly or indirectly, and the second mounting plate is mounted directly or indirectly on the second mounting plate so as to be rotatable around a second straight line (including the second line segment). It is done. And both edge part positional relationship holding | maintenance means is the distance between the 1st straight line which is a pivotable axis | shaft with respect to a 1st attachment plate, and the 2nd straight line which is a pivotable axis | shaft with respect to a 2nd attachment plate. Hold constant. If the supporting means has such both edge portion positional relationship holding means, the supporting means can be configured simply.

Both edge portion positional relationship holding means In this tester, the supporting means is provided on both ends on one end attached to the first attachment plate on one end side of the first line segment and the second attachment plate on one end side of the second line segment. Edge position relationship holding means, and both edge position relationship holding means on the other end side attached to the first mounting plate on the other end side of the first line segment and the second mounting plate on the other end side of the second line segment And may be included.
In this way, both edge positions on one end side attached to the first mounting plate on one end side of the first line segment and the second mounting plate on one end side of the second line segment as both edge position relationship holding means. Relationship holding means, and both edge portion positional relationship holding means on the other end side attached to the first mounting plate on the other end side of the first line segment and the second mounting plate on the other end side of the second line segment, Therefore, the positional relationship between the first edge (first line segment) and the second edge (second line segment) is reliably maintained on both the one end side and the other end side.

In this tester, the support means supports the first mounting plate so as to be rotatable around a first rotation axis parallel to the first line segment, and a second rotation axis parallel to the second line segment. Having a mounting plate support means for supporting the second mounting plate so as to be rotatable around the first rotation shaft and changing the distance between the first rotation shaft and the second rotation shaft (hereinafter referred to as “mounting plate”). It may be referred to as “support means main tester”.
The first mounting plate is rotatably supported around the first rotation axis parallel to the first line segment by the mounting plate support means included in such a support unit, and the second rotation parallel to the second line segment. Since the second mounting plate is rotatably supported around the moving shaft, and the distance between the first rotating shaft and the second rotating shaft can be changed, the first line segment and the second line While the minutes are parallel to each other and hold a relative position, the first mounting plate can be rotated about the first line segment relative to the second line segment, and the second mounting plate can be turned to the first line segment. In contrast, the first mounting plate and the second mounting plate can be supported in a state in which the first mounting plate can be rotated about the second line segment.

Mounting plate support means In this tester, the distance between the first line segment and the first rotation axis is equal to the distance between the second line segment and the second rotation axis (hereinafter, “ It may be referred to as “equal distance mounting plate supporting means main tester”.
As a result, in the state where the first line segment and the second line segment are parallel to each other and hold the relative position, the first rotation shaft is moved so that the plane including the first line segment and the second line segment moves in parallel. When the first mounting plate is rotated around the second rotation plate and the second mounting plate is rotated around the second rotation axis, the rotation angle of the first mounting plate and the rotation angle of the second mounting plate are accordingly accompanied. Therefore, the adjustment of the rotation of both mounting plates is facilitated, and both sides of the test body (one is attached to the first mounting plate and the other is attached to the second mounting plate) are the same. It is possible to prevent or reduce the bending of the specimen due to bending.

Equidistant mounting plate support means In this tester, it is a plane including an edge existing surface which is a plane including the first line segment and the second line segment, and a first rotation axis and a second rotation axis. The rotation axis existing surface may be parallel or belong to the same plane.
An edge portion existence surface that is a plane including the first line segment and the second line segment and a rotation axis existence surface that is a plane including the first rotation axis and the second rotation axis are parallel or the same plane. And the rotation conditions around the first rotation axis of the first mounting plate coincide with the rotation conditions around the second rotation axis of the second mounting plate. Is attached to the plate and the other is attached to the second attachment plate.) Can be bent in the same way to prevent or reduce uneven bending of the specimen.

Attachment plate support means In this tester, the attachment plate support means includes a first attachment plate support means for supporting the first attachment plate so as to be rotatable about the first rotation axis, and a second rotation axis. A second mounting plate supporting means for rotatably supporting the second mounting plate, a first rotation shaft and a first rotation shaft on a rotation shaft existing surface which is a plane including the first rotation shaft and the second rotation shaft. The first mounting plate support means and / or the second mounting plate support means can be changed so that the relative position of the second mounting plate support means with respect to the first mounting plate support means can be changed with respect to the displacement direction which is a direction perpendicular to the two rotation axes. And basic support means for supporting.
Since the mounting plate support means includes the first mounting plate support means, the second mounting plate support means, and the base support means, the first mounting plate support means rotates the first mounting plate around the first rotation axis. The second mounting plate is supported by the second mounting plate support means so as to be rotatable around the second rotation axis, and the second mounting plate is attached to the first mounting plate support means in a predetermined direction by the basic support means. The first attachment plate support means and / or the second attachment plate support means are supported such that the relative position of the plate support means can be changed. Here, the predetermined direction refers to a direction perpendicular to the first rotation axis and the second rotation axis in the rotation axis existence plane which is a plane including the first rotation axis and the second rotation axis. Thus, the mounting plate support means supports the first mounting plate so as to be rotatable around the first rotation axis, and supports the second mounting plate so as to be rotatable around the second rotation axis. The distance between the first rotation axis and the second rotation axis can be changed.

Mounting plate support means In this tester, the mounting plate support means has a first rotating rod that supports the first mounting plate so as to be rotatable around the first rotating shaft. , A rotation driving means to which the first rotation rod for rotating the first rotation rod around the first rotation axis is mounted, and the second mounting plate is moved to the second time by the rotation of the first rotation rod. And a link mechanism (hereinafter referred to as “link mechanism main tester”) that rotates freely around the moving axis.
In this way, the first rotation rod of the attachment plate support means supports the first attachment plate so as to be rotatable around the first rotation axis, and the rotation drive means included in the rotation means is attached to the first rotation rod. Since the first rotating rod thus rotated is rotated around the first rotating shaft, the first mounting plate is rotated around the first rotating shaft. And since the link mechanism with which the rotation means is provided rotates the second mounting plate around the second rotation axis by the rotation of the first rotation rod, the second rotation plate around the first rotation axis is rotated. Since it is not necessary to provide separate rotation driving means for causing the rotation of the first mounting plate and the rotation of the second mounting plate around the second rotation axis, the separate rotation driving means is provided. Compared to the above, since the mechanism for reducing the number of the rotation driving means and synchronizing the operation of the separate rotation driving means is not required, the present tester can be configured simply.

Link mechanism In the present tester, the support means has a first mounting plate mounted directly or indirectly so as to be rotatable around a first straight line including the first line segment, and a second line segment included. The second mounting plate is mounted directly or indirectly so as to be rotatable around two straight lines, and has both edge portion positional relationship holding means for maintaining a constant distance between the first straight line and the second straight line, The link mechanism may move both edge portion positional relationship holding means so that the second mounting plate rotates around the second rotation axis.
Both edge portion positional relationship holding means can be rotated around the first straight line (including the first line segment) with respect to the first mounting plate, although the first mounting plate and the second mounting plate are directly or indirectly mounted. The first attachment plate is attached directly or indirectly to the second attachment plate, and the second attachment plate is attached directly or indirectly to the second attachment plate so as to be rotatable around a second straight line (including the second line segment). And both edge part positional relationship holding | maintenance means is the distance between the 1st straight line which is a pivotable axis | shaft with respect to a 1st attachment plate, and the 2nd straight line which is a pivotable axis | shaft with respect to a 2nd attachment plate. Hold constant. If the supporting means has such both edge portion positional relationship holding means, the supporting means can be configured easily.
When the link mechanism moves the both edge position relationship holding means so that the second mounting plate rotates around the second rotation shaft, the first attachment with the both edge position relationship holding means attached thereto is provided. The plate portion (on the first straight line) and the second mounting plate portion (on the second straight line) are moved (the plane including the first line segment and the second line segment moves in parallel) to perform the second rotation. The second mounting plate can be rotated around the shaft.

Link mechanism In this tester, the absolute position of the first rotating shaft is not changed, and the absolute position of the second rotating shaft is moved so that the first rotating shaft and the second rotating shaft are moved. The distance between may change.
In this way, the absolute position of the first rotation shaft, which is the rotation shaft of the first rotation rod to which the rotation driving means is attached, is unchanged, and the absolute position of the second rotation shaft is moved to move the first rotation shaft. By changing the distance between the rotating shaft and the second rotating shaft, it is not necessary to move the first rotating rod to which the rotation driving means is attached, so that the present tester is configured simply. (In order to move the first rotation rod to which the rotation driving means is attached, if the movement including the rotation driving means and the first rotation rod is moved as one body, the moving part becomes large and heavy. In order to move only the first rotation rod without moving the rotation drive means, there is a problem that power transmission from the rotation drive means to the first rotation rod becomes complicated.

Mounting plate support means In this tester, the orthographic projection of the first line segment onto the rotation axis existing surface, which is a plane including the first rotation axis and the second rotation axis, and the rotation axis existing surface The orthographic projection of the second line segment is between the first rotation axis and the second rotation axis, and the support means is configured to be rotatable around a first straight line including the first line segment. The first mounting plate is mounted directly or indirectly, and the second mounting plate is mounted directly or indirectly so as to be rotatable around the second straight line including the second line segment. Both edge position relationship holding means for holding the distance between them constant is provided, and the rotating means has reciprocating drive means for reciprocating both edge position relationship holding means in a direction perpendicular to the rotation shaft existence surface. (Hereinafter referred to as “reciprocating drive tester”).
The both edge portion positional relationship holding means of the support means has the first attachment plate and the second attachment plate attached directly or indirectly, but around the first straight line (including the first line segment) with respect to the first attachment plate. The first mounting plate is directly or indirectly attached to the second mounting plate, and the second mounting plate is directly or indirectly rotatable about the second straight line (including the second line segment) with respect to the second mounting plate. Attached to. And both edge part positional relationship holding | maintenance means is the distance between the 1st straight line which is a pivotable axis | shaft with respect to a 1st attachment plate, and the 2nd straight line which is a pivotable axis | shaft with respect to a 2nd attachment plate. Hold constant. If the supporting means has such both edge portion positional relationship holding means, the supporting means can be configured easily.
And the orthographic projection of the first line segment on the pivot axis existing surface, which is a plane including the first pivot axis and the second pivot axis, and the orthographic projection of the second line segment on the pivot axis existing surface, Exists between the first rotation axis and the second rotation axis on the surface where the rotation axis exists (that is, the straight line including the first rotation axis and the second rotation axis in the surface where the rotation shaft exists). In the region sandwiched between the straight line including the first line segment and the second line segment, the reciprocating drive means of the rotating means is located on the surface of the rotating shaft. On the other hand, if the both edge portion positional relationship holding means is reciprocated in the vertical direction, the first mounting plate rotates around the first rotation shaft and the second mounting plate rotates around the second rotation shaft. This tester can be configured with a simple configuration of reciprocating drive means for reciprocating both edge portion positional relationship holding means.

In the reciprocating driving tester, the reference plane is a plane that is perpendicular to the plane including the first line segment and the second line segment, and whose distance from the first line segment is equal to the distance from the second line segment. The absolute position of each of the first and second rotary shafts changes so that the first distance to the rotary shaft is equal to the second distance between the reference plane and the second rotary shaft. It may be.
A plane perpendicular to the plane including the first line segment and the second line segment and parallel to the first line segment and the second line segment, and the distance from the first line segment and the distance from the second line segment are The first rotation axis and the second rotation are such that the first distance between the reference plane and the first rotation axis, which are equal planes, and the second distance between the reference plane and the second rotation axis are equal to each other. Since the absolute position of any of the dynamic axes changes, the specimen can be bent in the same way on both sides of the reference plane, and the specimen can be prevented or reduced from being bent unexpectedly and unevenly.

It is a perspective view which shows the deformation | transformation tester (1st test device) which concerns on 1st Embodiment of this invention. FIG. 2A is a perspective view of the first tester as viewed from another direction, and FIG. 2B is a front view of the first tester. FIG. 3A is a plan view of the first tester, and FIG. 3B is a right side view of the first tester. It is an expansion perspective view which expands and shows a drive part, a guide rail, one support shaft part, one test piece attachment part, a drive shaft, the other test piece attachment part, and a link part. It is an expansion perspective view explaining operation | movement of a 1st test device. It is an expansion perspective view explaining operation | movement of a 1st test device. It is a perspective view which shows the 1st main tester of the state shown in FIG. It is a figure which shows the place which looked at the other attachment plate, the one attachment plate, and the test piece attached to them from the direction parallel to an X-axis. It is a perspective view which shows the deformation | transformation test device (2nd test device) which concerns on 2nd Embodiment of this invention. FIG. 10A is a perspective view of the second tester as viewed from another direction, and FIG. 10B is a front view of the second tester. FIG. 11A is a plan view of the second tester, and FIG. 11B is a right side view of the second tester. It is an expansion perspective view which expands and shows a drive part, a guide rail, one support shaft part, one test piece attachment part, a drive rod, the other test piece attachment part, and a link part. It is an expansion perspective view explaining operation | movement of a 2nd tester. It is an expansion perspective view explaining operation | movement of a 2nd tester. It is a perspective view which shows the 2nd main tester of the state shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited by these.

(First embodiment)
FIG. 1 is a perspective view showing a deformation tester (first main tester) 11 according to the first embodiment of the present invention. FIG. 2A is a perspective view of the first tester 11 viewed from another direction (showing a direction viewed from the direction of arrow A in FIG. 1), and FIG. FIG. 3 is a front view of the first tester 11 (shown from the direction of arrow B in FIG. 2A). FIG. 3A is a plan view of the first tester 11 (shown from the direction of arrow C in FIGS. 2A and 2B), and FIG. FIG. 3 is a right side view of the first tester 11 (shown from the direction of arrow D in FIGS. 2A and 2B). FIG. 4 is an enlarged perspective view showing the drive unit 61, the guide rail 31b, the one support shaft portion 41, the one test piece attachment portion 51, the drive shaft 73, the other test piece attachment portion 81, and the link portion 91, which will be described later. is there. The first main tester 11 will be described with reference to FIGS. 1 to 4. For ease of explanation and understanding, the X axis, the Y axis, and the Z axis, which are three axes orthogonal to each other, are used (the directions of these three axes are shown as X, Y, and Z in the drawing), and the Z axis. A plane perpendicular to X is referred to as an XY plane, a plane perpendicular to the X axis is referred to as a YZ plane, and a plane perpendicular to the Y axis is referred to as an XZ plane. 1 to 3 show a state where the test piece 101 is attached, but FIG. 4 shows a state where the test piece 101 is not attached.

  The first tester 11 roughly includes a frame portion 21 having a hollow rectangular parallelepiped shape, guide rails 31a and 31b attached to the upper surface of the frame portion 21, and guide rails 31a slidable in the Y-axis direction. One support shaft portion 41 attached to 31b, one test piece attachment portion 51 attached to one support shaft 43 of the one support shaft portion 41, a drive portion 61 fixed to the left side surface of the frame portion 21, and A drive shaft 73 that is rotatably supported with respect to the frame portion 21, the other test piece mounting portion 81 that is non-rotatably attached to the drive shaft 73, and a link portion that rotates the one test piece mounting portion 51. 91.

  The frame portion 21 includes eight top plates 23 formed along one surface of the rectangular parallelepiped (both main surfaces are formed by flat plate members having a substantially rectangular shape) and rod-shaped members along the sides of the rectangular parallelepiped. The top plate portion 23 forms the upper surface of the frame portion 21. The sides of the rectangular parallelepiped formed by the frame portion 21 are arranged in parallel to any of the X axis, the Y axis, and the Z axis, and the frame portion 21 is here formed of metal so as to have sufficient strength.

  The guide rails 31a and 31b are fixed to the upper surface 23a of the top plate portion 23 of the frame portion 21 so as to be parallel to the Y axis and belong to the same XY plane.

  On the other hand, the support shaft portion 41 includes a slide portion 45a attached to the guide rail 31a so as to be slidable in the Y-axis direction, a slide portion 45b attached to the guide rail 31b so as to be slidable in the Y-axis direction, and a slide portion 45a. One support shaft 43 (formed by a round bar whose longitudinal direction is parallel to the X axis) is rotatably supported by the portion 45b. As a result, the one support shaft 43 can freely move in the Y-axis direction along the XY plane while keeping the longitudinal direction parallel to the X-axis.

On the other hand, the test piece attachment portion 51 includes an attachment portion 53a that is non-rotatably attached to the one support shaft 43, and an attachment portion 53b that is separated from the attachment portion 53a and is non-rotatably attached to the one support shaft 43. The mounting portion 53a and the mounting portion 53b have one mounting plate 55 attached to both sides.
On the other hand, both the main surfaces of the mounting plate 55 have the same rectangular shape, and one edge 55ae (the X axis of the four edges) of the four edges of the upper surface 55a which is one of the two main surfaces. The edge closer to the bent portion of the test piece 101) of the two edge portions parallel to each other) is X even if the one test piece mounting portion 51 rotates as the one support shaft 43 rotates. It always stays parallel to the axis.

  The drive unit 61 is fixed to the left side surface of the frame unit 21, and the base end of the drive shaft 73 is attached. The drive unit 61 includes a motor, a transmission, and a control unit inside, and rotates the drive shaft 73 forward and backward around its central axis at a predetermined rotation angle and rotation speed. Although not shown here, the predetermined rotation angle and rotation speed can be made variable, whereby the bending angle and the bending speed in the bending test of the test piece 101 described later can be appropriately changed. Is possible.

The drive shaft 73 is formed of a round bar, and is supported rotatably with respect to the frame portion 21 in a state where the center axis of the round bar is parallel to the X axis. The round bar constituting the drive shaft 73 has a right circular cylinder shape, and the round bar is rotated around the central axis of the right circular cylinder.
As described above, the base end of the drive shaft 73 is attached to the drive unit 61, so that the drive shaft 73 rotates forward and backward around its central axis at a predetermined rotation angle and rotation speed.

On the other hand, the test piece mounting portion 81 includes a mounting portion 83a that is non-rotatably mounted on the drive shaft 73, a mounting portion 83b that is non-rotatably mounted on the drive shaft 73 apart from the mounting portion 83a, It has the other attachment board 85 by which both sides were attached to the part 83a and the attachment part 83b.
The other mounting plate 85 has both main surfaces having the same rectangular shape, and one of the four edge portions of the upper surface 85a which is one of the two main surfaces, the edge portion 85ae (the X axis of the four edge portions). Of the two edges parallel to each other, the edge closer to the bent portion of the test piece 101), even if the other test piece mounting portion 81 rotates as the drive shaft 73 rotates. Is always kept in parallel.
It should be noted that the upper surface 85a at a predetermined rotation position (FIGS. 1 to 4) around the drive shaft 73 of the other test piece attachment portion 81 and a predetermined rotation around the one support shaft 43 of the one test piece attachment portion 51. The upper surface 55a at the position (FIGS. 1 to 4) is located so as to belong to one plane parallel to the XY plane.
Further, a sheet-like or film-like test piece 101 is attached to the upper surface 85a and the upper surface 55a by adhering the main surface of the test piece 101.

The link portion 91 is formed by a link shaft 92 (formed by a straight round bar, the central axis of which is supported in parallel to the X axis) supported rotatably with respect to the frame portion 21, and the link shaft 92. One end of the angle member 93 is pivotally attached to the other end of the angle member 93, and the other end is pivotable to the other attachment plate 85 and one attachment plate 55 (the other attachment). The rotation center with respect to the plate 85 is included in the straight line where the edge 85ae exists, while the rotation center with respect to the mounting plate 55 is included in the straight line where the edge 55ae exists. One end of the angle member 95 is rotatably attached to the other end of the angle member 95, and the other end is attached to the other attachment plate 85 and the one attachment plate 55. The rotation center with respect to the other mounting plate 85 is included in a straight line where the edge portion 85ae exists, and the rotation center with respect to the one mounting plate 55 is included in a straight line where the edge portion 55ae exists. , Has.
As described above, both the connecting member 94 and the connecting member 96 are attached to the other mounting plate 85 so as to be rotatable around the rotation axis included in the straight line including the edge 85ae, and include the edge 55ae. Since it is attached to one attachment plate 55 so as to be rotatable around a rotation axis included in the straight line, when the other attachment plate 85 rotates as the drive shaft 73 rotates as will be described later. The mounting plate 55 also rotates while the distance between the edge 85ae and the edge 55ae is constant and the distance between the edge 85ae and the edge 55ae remains parallel. Even if the other mounting plate 85 rotates as the drive shaft 73 rotates, the longitudinal direction of the connecting members 94 and 96 is kept parallel to the Z axis, and the plane including the edge 55ae and the edge 85ae is always present. The plane including the edge 55ae and the edge 85ae is translated by the rotation of the other mounting plate 85. Note that the edge 55ae and the edge 85ae are the same XY. Always belongs to the face.)
As the one attachment plate 55 rotates, the one support shaft portion 41 freely slides along the guide rails 31a and 31b.

The operation of the first tester 11 will be described with reference to FIGS. 4, 5, 6 and 7. FIGS. 5 and 6 show the same components as those shown in FIG. 4 as viewed from the same direction as in FIG. 4. From the state of FIG. 4, the drive shaft 73 rotates clockwise in the drawing. It shows where it moved. FIG. 7 shows the first main tester 11 in the state shown in FIG. 6 as viewed from the same direction as in FIG.
First, in the state of FIG. 4, the upper surface 85a of the other mounting plate 85 and the upper surface 55a of the one mounting plate 55 belong to the same plane perpendicular to the Z axis, and are attached to the upper surface 85a and the upper surface 55a. The test piece 101 (not shown in FIGS. 4 to 6) is in a straight state along a plane.

From the state of FIG. 4, when the drive unit 61 rotates the drive shaft 73 around the central axis in the forward direction (referred to as the clockwise direction in FIGS. 4, 5, and 6), the drive shaft 73 rotates. The other attachment plate 85 rotates in the forward direction around the drive shaft 73 together with the attachment portions 83a and 83b that are impossiblely attached. As the mounting portions 83a and 83b and the other mounting plate 85 rotate in the forward direction, the connecting members 94 and 96 are pushed down by the other mounting plate 85 as shown in FIG. 5 while the longitudinal direction thereof is kept parallel to the Z axis. . When the connecting members 94 and 96 are pushed down, the angle members 93 and 95 are rotated in the forward direction, so that the link shaft 92 is also rotated in the forward direction.
In addition, the one test piece mounting portion 51 (attachment) attached to the other end (upper end) of the connecting members 94 and 96 is pivotable by the forward rotation of the attachment portions 83a and 83b and the other attachment plate 85. The portions 53a and 53b and the one attachment plate 55) rotate in the reverse direction (counterclockwise in the figure) around the one support shaft 43. The one support shaft portion 41 (the slide portions 45a and 45b, the one support shaft 43) is parallel to the Y axis along the guide rails 31a and 31b by the rotation of the one test piece mounting portion 51 around the one support shaft 43. On the other hand, it moves so that it may approach the test piece attachment part 81 (The distance between the edge part 85ae and the edge part 55ae is kept constant by the connection members 94 and 96, and between the edge part 85ae and the edge part 55ae is kept in parallel. )

By such rotation of the drive shaft 73 in the positive direction by the drive unit 61, rotation of the other test piece mounting portion 81 (the mounting portions 83 a and 83 b and the other mounting plate 85) in the positive direction around the drive shaft 73 is performed. The one-side test piece mounting portion 51 (the mounting portions 53a and 53b and the one mounting plate 55) rotates in the opposite direction around the one support shaft 43. In these three rotations, the distance between the edge portion 85ae and the edge portion 55ae is kept constant, the edge portion 85ae and the edge portion 55ae are kept parallel, and the test piece mounting portion 51 is connected to the drive shaft. It moves parallel to the Y axis in a direction approaching 73.
The rotation of the drive shaft 73 in the forward direction is performed from the state of FIG. 4 through the state of FIG. 5 to the state of FIG. 6 (in the state of FIG. 6, the upper surface 85a of the other mounting plate 85 and the upper surface of the one mounting plate 55). (The rotation stops in the state of FIG. 6). 6, the test piece 101 (not shown in FIGS. 4 to 6) attached to the upper surface 85a of the other attachment plate 85 and the upper surface 55a of the one attachment plate 55 is folded. become.

From the state of FIG. 6 in which the test piece 101 is folded, the drive shaft 73 is rotated in the reverse direction (counterclockwise in FIG. 6) by the drive unit 61. As a result, the state of FIG. 4 is restored via the state of FIG. As described above, the drive shaft 73 is rotated in the forward direction from the state shown in FIG. 4 (the test piece 101 is flat) to obtain the state shown in FIG. 6 (the test piece 101 is folded). By rotating the drive shaft 73 in the reverse direction from the state to return to the state of FIG. 4 (one cycle), the test piece 101 is folded from the flat state and returns to the flat state again. A folding test can be performed. By alternately rotating the drive shaft 73 in the forward and reverse directions, a folding test in which a plurality of test pieces 101 are folded can be performed.
In such a folding test of the test piece 101 (operating in the order of FIGS. 4, 5, 6, 5, and 4), the edges 85ae and 55ae are always parallel as shown in FIG. The distance K between them is kept constant and belongs to one plane perpendicular to the Z axis. Further, in the folding test of the test piece 101, the upper surface 85a and the upper surface 55a are always symmetrical with respect to the plane P having the same distance from the edges 85ae and 55ae and perpendicular to the Y axis.

FIG. 8 is a view showing the other attachment plate 85, the one attachment plate 55, and the test piece 101 attached to them from a direction parallel to the X axis. FIG. 8 (a) shows the state of FIG. 8 (b) shows the state of FIG. 5, and FIG. 8 (c) shows the state of FIG.
As shown in FIGS. 8A, 8B, and 8C, the test piece 101 attached to the upper surface 85a and the upper surface 55a is a plane centering on the edges 85ae and 55ae that are parallel to each other and have a constant distance K. It is bent between two upper surfaces 85a and 55a that rotate symmetrically with respect to P. For this reason, the test piece 101 in the vicinity of the edge portion 85ae, the vicinity of the edge portion 55ae, and between the edge portions 85ae and 55ae is bent with substantially the same bending radius, and the bending condition is unexpectedly biased depending on the position of the test piece 101. Since it is difficult, a test with high reproducibility can be performed. And the bending radius of the test piece 101 can be changed by changing the distance K (K / 2 is almost the bending radius of the test piece 101). Further, in the first tester 11 as described above, since the distance K can be freely changed until it becomes 0, the bending radius of the test piece 101 can be made extremely small, so that various bending tests can be handled.

In the first main tester 11, the edge portion 85ae of the upper surface 85a to which the test piece 101 is attached and the edge portion 55ae of the upper surface 55a to which the test piece 101 is attached are always parallel and the distance K is kept constant. While rotating the upper surface 85a around the edge 85ae (when viewed from the test piece 101) and rotating the upper surface 55a around the edge 55ae (when viewed from the test piece 101), Very short test piece 101 (If the test piece 101 is longer than the total length of the length applied to the edge 85ae and the edge 55ae, the length attached to the upper surface 85a, and the length attached to the upper surface 55a, the test piece 101 is tested. Is possible).
In addition, in the first main tester 11, when the test piece 101 is attached to the upper surface 55a and the upper surface 85a, the edge portions 55ae and 85ae are always parallel and centered on the edge portions 55ae and 85ae when viewed from the test piece 101. In order to rotate the upper surfaces 55a and 85a with the distance K kept constant, the portion of the test piece 101 existing between the vicinity of the edge portion 85ae and the vicinity of the edge portion 55ae is deformed, but the other test pieces 101 The remaining portion (mainly the portion facing the upper surface 55a and the upper surface 85a) is hardly deformed. This selectively deforms the portion to be subjected to the deformation test, and enables an accurate and highly reproducible deformation test.
In the first tester 11, the upper surface 55 a and the upper surface 85 a to which the test piece 101 is attached move only to cause the intended bending of the test piece 101. Prevent the test piece 101 from being subjected to unintentional deformation (for example, a force that causes the test piece to bend unexpectedly and unevenly, a force that pulls the test piece, or a force to compress the test piece 101). Can be reduced.

  As described above, the first tester 11 includes the first attachment surface (here, the upper surface 85a) on which the test body (here, the test piece 101) is attached, and the first line segment S1 (see FIG. 4; here, the edge). A first mounting plate (here, the other mounting plate 85) having a first edge portion (edge portion 85ae) that is an edge portion of the first mounting surface (upper surface 85a) overlying the portion 85ae. The second mounting surface (here, the upper surface 55a) on which the test body (test piece 101) is mounted and the second mounting surface existing on the second line segment S2 (see FIG. 4; here, the line segment where the edge 55ae exists). A first attachment plate (one attachment plate 55) having a second edge (edge 55ae) that is an edge of the surface (upper surface 55a) and a gap spanning the test body (test piece 101) are first. As formed between the edge (edge 85ae) and the second edge (edge 55ae), While the first line segment S1 and the second line segment S2 are parallel to each other and hold a relative position, the first line segment S1 is relatively positioned with respect to the second line segment S2. And the second mounting plate (one mounting plate 55) can be rotated about the second line segment S2 relative to the first line segment S1. Support means for supporting the mounting plate (the other mounting plate 85) and the second mounting plate (the one mounting plate 55) (here, guide rails 31a, 31b, slide portions 45a, 45b, one support shaft 43, mounting portions 53a, 53b). Drive shaft 73, mounting portions 83a and 83b, and connecting members 94 and 96), and the first mounting plate (the other mounting plate 85) relative to the second line segment S2. The first line segment S1 is turned around, and the second mounting plate (one mounting plate 55) is moved to the first line segment S1. Rotating means for relatively rotating around the second line segment S2 (here, the driving unit 61, the link shaft 92, the angle members 93 and 95, and the connecting members 94 and 96 are included). And a deformation tester. As in the first tester 11, support means (guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, attachment portions 53a and 53b, drive shaft 73, attachment portions 83a and 83b, connecting members 94, 96.) (a) The first mounting plate (the other mounting plate 85) can be rotated around the first line segment S1 relative to the second line segment S2. b) The first mounting plate so that both the second mounting plate (one mounting plate 55) can be rotated about the second line segment S2 relative to the first line segment S1 are satisfied. While supporting the (other mounting plate 85) and the second mounting plate (one mounting plate 55), the rotating means (including the drive unit 61, the link shaft 92, the angle members 93 and 95, and the connecting members 94 and 96). However, (c) the first mounting plate (the other mounting plate 85) is relative to the second line segment S2. Rotating about one line segment S1, (d) rotating the second mounting plate (one mounting plate 55) around the second line segment S2 relative to the first line segment S1, By performing both of these, the test piece 101 is bent uniformly between the vicinity of the first line segment S1 and the vicinity of the second line segment S2, so that a highly reproducible test can be performed.

In the first main tester 11, the plane is perpendicular to the plane including the first line segment S1 and the second line segment S2, and the distance from the first line segment S1 is equal to the distance from the second line segment S2. And the angle formed by the reference surface (plane P) and the first mounting surface (upper surface 85a) and the angle formed by the reference surface (plane P) and the second mounting surface (upper surface 55a) are equal. The moving means (including the drive unit 61, the link shaft 92, the angle members 93 and 95, and the connecting members 94 and 96) rotate the first mounting plate (the other mounting plate 85) and the second mounting plate (the one mounting plate 55). It is something to move.
In the first tester 11, support means (guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, attachment portions 53a and 53b, drive shaft 73, attachment portions 83a and 83b, connecting members 94 and 96 are provided. Includes a second line segment S2 while the first mounting plate (the other mounting plate 85) is mounted directly or indirectly so as to be rotatable around a first straight line including the first line segment S1. Edge positions where the second mounting plate (one mounting plate 55) is mounted directly or indirectly so as to be rotatable around the second straight line, and the distance between the first straight line and the second straight line is kept constant. It has relationship holding means (here, connecting members 94, 96).

In the first tester 11, support means (guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, attachment portions 53a and 53b, drive shaft 73, attachment portions 83a and 83b, connecting members 94 and 96 are provided. Is attached to the first attachment plate (the other attachment plate 85) on one end side of the first line segment S1 and the second attachment plate (one attachment plate 55) on the one end side of the second line segment S2. Side edge positional relationship holding means (connecting member 94), the first attachment plate (other attachment plate 85) on the other end side of the first line segment S1, and the second attachment on the other end side of the second line segment S2. Both edge part positional relationship holding | maintenance means (connection member 96) of the other end side attached to a board (one attachment board 55).
In the first tester 11, support means (guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, attachment portions 53a and 53b, drive shaft 73, attachment portions 83a and 83b, connecting members 94 and 96 are provided. ) Supports the first mounting plate (the other mounting plate 85) so as to be rotatable about a first rotation shaft (the central axis of the drive shaft 73) parallel to the first line segment S1, and The second mounting plate (one mounting plate 55) is supported so as to be rotatable around a second rotation shaft (the central axis of the one support shaft 43) parallel to the two line segments S2, and the first rotation shaft and the second rotation shaft are supported. Mounting plate support means (guide rails 31a, 31b, slide portions 45a, 45b, one support shaft 43, mounting portions 53a, 53b, drive shaft 73, mounting portion 83a, which can change the distance to the rotation shaft. , 83b.).
In the first main tester 11, the distance between the first line segment S1 and the first rotation shaft (the central axis of the drive shaft 73), the second line segment S2 and the second rotation shaft (one support shaft). The distance between the central axis 43 and the central axis 43 is equal.
In the first main tester 11, the edge existence surface which is a plane including the first line segment S1 and the second line segment S2, the first rotation shaft (the central axis of the drive shaft 73), and the second rotation. The rotation axis existence plane which is a plane including the axis (the central axis of the one support axis 43) is parallel or belongs to the same plane.

  In the first tester 11, mounting plate support means (including guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, mounting portions 53a and 53b, a drive shaft 73, and mounting portions 83a and 83b). Is a first attachment plate support means (here, the drive shaft 73, the attachment portion) that supports the first attachment plate (the other attachment plate 85) so as to be rotatable around the first rotation shaft (the central axis of the drive shaft 73). 83a, 83b) and a second mounting plate support that supports the second mounting plate (one mounting plate 55) so as to be rotatable around a second rotating shaft (the central axis of the one supporting shaft 43). Means (here, including one support shaft 43 and mounting portions 53a and 53b), a first rotation shaft (center axis of the drive shaft 73) and a second rotation shaft (center axis of the one support shaft 43). The first rotation axis (the central axis of the drive shaft 73) in the rotation axis existence plane that is a plane including And a first mounting plate support means (driving shaft 73, mounting portions 83a, 83b) with respect to a displacement direction (in this case, a direction parallel to the Y axis) which is a direction perpendicular to the second rotation shaft (the central axis of the one support shaft 43). ) With respect to the second mounting plate support means (one support shaft 43, mounting portions 53a, 53b) so that the relative position of the second mounting plate support means can be changed (guide rails 31a, 31b, slides here). 45a and 45b).

In the first tester 11, mounting plate support means (including guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, mounting portions 53a and 53b, a drive shaft 73, and mounting portions 83a and 83b). Has a first rotation rod (here, the drive shaft 73) that supports the first mounting plate (the other mounting plate 85) so as to be rotatable around a first rotation shaft (the central axis of the drive shaft 73). The rotation means (including the drive unit 61, the link shaft 92, the angle members 93 and 95, and the connecting members 94 and 96) is configured to move the first rotation rod (drive shaft 73) to the first rotation shaft (drive). The rotation drive means (here, the drive unit 61) to which the first rotation rod (drive shaft 73) to be rotated around the central axis of the shaft 73 is attached, and the first rotation rod (drive shaft 73). By rotating, the second mounting plate (one mounting plate 55) is moved to the second rotating shaft (the central axis of the one supporting shaft 43). Link mechanism for passively rotated in Ri (link shaft 92, angle members 93 and 95, the connecting member 94 and 96) and will comprise a.
In the first tester 11, support means (guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, attachment portions 53a and 53b, drive shaft 73, attachment portions 83a and 83b, connecting members 94 and 96 are provided. Includes a second line segment S2 while the first mounting plate (the other mounting plate 85) is mounted directly or indirectly so as to be rotatable around a first straight line including the first line segment S1. Edge positions where the second mounting plate (one mounting plate 55) is mounted directly or indirectly so as to be rotatable around the second straight line, and the distance between the first straight line and the second straight line is kept constant. It has relationship holding means (connecting members 94, 96), and the link mechanism (link shaft 92, angle members 93, 95, connecting members 94, 96) is a second rotating shaft (the central axis of one support shaft 43). The second mounting plate (one mounting plate 55) is around Both edge portions positional relationship holding means to dynamic and moves the (connecting members 94 and 96).
In the first main tester 11, the absolute position of the first rotation shaft (the central axis of the drive shaft 73) is not changed, and the absolute position of the second rotation shaft (the central axis of the one support shaft 43). The distance between the first rotation shaft (the center axis of the drive shaft 73) and the second rotation shaft (the center axis of the one support shaft 43) is changed by the movement of.

(Second Embodiment)
FIG. 9 is a perspective view showing a deformation tester (second main tester) 211 according to the second embodiment of the present invention. FIG. 10A is a perspective view of the second tester 211 viewed from another direction (showing a direction viewed from the direction of arrow E in FIG. 9), and FIG. FIG. 11 is a front view of the second tester 211 (showing the second tester 211 when viewed from the direction of arrow F in FIG. 10A). FIG. 11A is a plan view of the second tester 211 (showing the direction of the arrow G in FIGS. 9 and 10A), and FIG. FIG. 11 is a right side view of the second tester 211 (shown from the direction of arrow J in FIGS. 10A and 10B). FIG. 12 is an enlarged view of the drive unit 261, guide rail 31b, one support shaft portion 41, one test piece mounting portion 51, drive rod 273, the other support shaft portion 241, the other test piece mounting portion 251 and the link portion 291 which will be described later. FIG. The second tester 211 will be described with reference to FIGS. 9 to 12. For ease of explanation and understanding, the X axis, the Y axis, and the Z axis, which are three axes orthogonal to each other, are used (the directions of these three axes are shown as X, Y, and Z in the drawing), and the Z axis. A plane perpendicular to X is referred to as an XY plane, a plane perpendicular to the X axis is referred to as a YZ plane, and a plane perpendicular to the Y axis is referred to as an XZ plane. 9 to 11 show a state where the test piece 101 is attached, but FIG. 12 shows a state where the test piece 101 is removed.

  The second tester 211 is roughly a hollow rectangular parallelepiped frame portion 21, guide rails 31a and 31b attached to the upper surface of the frame portion 21 along the Y-axis direction, and slides in the Y-axis direction. One support shaft part 41 freely attached to the guide rails 31a and 31b, one test piece attachment part 51 attached to one support shaft 43 of the one support shaft part 41, and a guide rail slidable in the Y-axis direction The other support shaft portion 241 attached to 31a and 31b, the other test piece attachment portion 251 attached to the other support shaft 243 included in the other support shaft portion 241, and the drive portion 261 fixed inside the frame portion 21 One end (lower end) is attached to the drive unit 261 and reciprocates in the Z-axis direction, and the other end (upper end) of the drive rod 273 is attached while one test piece. The urging portion 51 and the other test piece mounting portion 251 and the link portion 291 is rotated, comprising.

  The frame portion 21 has a top plate portion 23 along one surface of the rectangular parallelepiped (both main surfaces are formed by flat plate members having a substantially rectangular shape, and an opening is formed at the center), and a side of the rectangular parallelepiped. 8 rod-shaped portions 25 formed by the rod-shaped members along the top, and the top plate portion 23 forms the upper surface of the frame portion 21. The sides of the rectangular parallelepiped formed by the frame portion 21 are arranged in parallel to any of the X axis, the Y axis, and the Z axis, and the frame portion 21 is here formed of metal so as to have sufficient strength.

  The guide rails 31a and 31b are fixed to the upper surface 23a of the top plate portion 23 of the frame portion 21 so as to be parallel to the Y axis and belong to the same XY plane perpendicular to the Z axis.

  On the other hand, the support shaft portion 41 includes a slide portion 45a attached to the guide rail 31a so as to be slidable in the Y-axis direction, a slide portion 45b attached to the guide rail 31b so as to be slidable in the Y-axis direction, and a slide portion 45a. One support shaft 43 (formed by a round bar whose longitudinal direction is parallel to the X axis) is supported on both sides of the portion 45b so as to be freely rotatable. As a result, the one support shaft 43 can freely move in the Y-axis direction along the XY plane while keeping the longitudinal direction parallel to the X-axis.

On the other hand, the test piece attachment portion 51 includes an attachment portion 53a that is non-rotatably attached to the one support shaft 43, and an attachment portion 53b that is separated from the attachment portion 53a and is non-rotatably attached to the one support shaft 43. The mounting portion 53a and the mounting portion 53b have one mounting plate 55 attached to both sides.
On the other hand, both the main surfaces of the mounting plate 55 have the same rectangular shape, and one edge 55ae (the X axis of the four edges) of the four edges of the upper surface 55a which is one of the two main surfaces. The edge closer to the bent portion of the test piece 101) of the two edges parallel to each other is always on the X axis even if the one test piece mounting portion 51 rotates around the one support shaft 43. Parallel state is maintained.

  The other support shaft portion 241 includes a slide portion 245a attached to the guide rail 31a to be slidable in the Y-axis direction, a slide portion 245b attached to the guide rail 31b to be slidable in the Y-axis direction, and a slide portion 245a. And the other support shaft 243 (formed by a round bar whose longitudinal direction is parallel to the X axis) that is rotatably supported by the portion 245b. As a result, the other support shaft 243 can freely move in the Y-axis direction along the XY plane while keeping the longitudinal direction parallel to the X-axis. The other support shaft 243 and the one support shaft 43 are disposed so as to always belong to the same XY plane.

The other test piece attachment portion 251 includes an attachment portion 253a that is non-rotatably attached to the other support shaft 243, and an attachment portion 253b that is away from the attachment portion 253a and is non-rotatably attached to the other support shaft 243. , And the other attachment plate 255 having both sides attached to the attachment portion 253a and the attachment portion 253b.
The other mounting plate 255 has both main surfaces having the same rectangular shape, and one of the four edge portions of the upper surface 255a which is one of the two main surfaces 255ae (the X axis of the four edge portions). Of the two edges parallel to each other, the edge closer to the bent portion of the test piece 101), even if the other test piece mounting portion 251 rotates as the other support shaft 243 rotates. It always stays parallel to the axis.

  The drive unit 261 is fixed to the frame unit 21 directly or indirectly through another member, and one end (lower end) of the drive rod 273 is attached. The drive unit 261 includes a motor, a transmission, a crank mechanism (converting rotational motion into a reciprocating motion), and a control unit, and reciprocates the drive rod 273 in parallel with the Z axis at a predetermined stroke and speed. . Note that the predetermined stroke and speed can be varied, and accordingly, a bending angle and a bending speed in a bending test of the test piece 101 described later can be appropriately changed.

The drive rod 273 is formed of a straight round bar, and is supported so as to be able to reciprocate in a state where the central axis of the round bar is parallel to the Z axis.
As described above, one end (lower end) of the drive rod 273 is attached to the drive unit 261, and the other end (upper end) of the drive rod 273 is attached to the link unit 291.

The link portion 291 is rotatable at the vicinity of one end (upper end) of the other mounting plate 255 and the one mounting plate 55 (the rotation center with respect to the other mounting plate 255 is included in a straight line where the edge portion 255ae exists, and The rotation center is included in a straight line having the edge 55ae. A pair of connecting members 296a and 296b (the connecting member 296a is rotatably attached to the guide rail 31a side, and the connecting member 296b is a guide). And a connecting rod 297 that connects the other end (lower end) of the connecting member 296a and the other end (lower end) of the connecting member 296b.
Both of the pair of connecting members 296a and 296b are rotatably attached to the other mounting plate 255 so that the straight line where the edge portion 255ae exists is the rotation center, and the straight line where the edge portion 55ae exists is the rotation center. As described above, by being rotatably attached to the one attachment plate 55, the distance between the edge portion 255ae and the edge portion 55ae is constant, and the distance between the edge portion 255ae and the edge portion 55ae is maintained in parallel. The link portion 291 only reciprocates in the Z-axis direction as the drive rod 273 reciprocates in the Z-axis direction, and the direction with respect to the Z-axis does not change.
Since the other end (upper end) of the drive rod 273 is attached to the connecting rod 297, the other end (upper end) of the drive rod 273 is reciprocated in the Z-axis direction by the drive unit 261. The distance between 255ae and the edge 55ae is constant and the edge 255ae and the edge 55ae remain parallel (note that the edge 255ae and the edge 55ae always belong to the same XY plane), while the other mounting plate. 255 and the one attachment plate 55 rotate forward and backward. In any state of rotation of the other mounting plate 255 and the one mounting plate 55 at this time, the plane including the upper surface 55a and the plane including the upper surface 255a are equidistant from the edge 255ae and the edge 55ae. It is plane-symmetric with respect to the plane. As the other mounting plate 255 and the one mounting plate 55 rotate, the other support shaft portion 241 and the one support shaft portion 41 slide (reciprocate) along the guide rails 31a and 31b.

The operation of the second tester 211 will be described with reference to FIGS. 12, 13, 14, and 15. FIG. FIG. 13 and FIG. 14 show the same components as those of FIG. 12 described above, as viewed from the same direction as in FIG. 12, and the drive rod 273 is lowered by the drive unit 261 from the state of FIG. (Z-axis negative direction; arrow R direction in FIG. 12). FIG. 15 shows the second tester 211 in the state shown in FIG. 14 as viewed from the same direction as FIG.
First, in the state of FIG. 12, the upper surface 255a of the other mounting plate 255 and the upper surface 55a of the one mounting plate 55 almost belong to the same plane (the same XY plane) perpendicular to the Z axis. The test piece 101 (not shown in FIGS. 12 to 14) attached to 55a is in a straight state along the plane.

  When the driving rod 273 is moved downward (in the direction of arrow R in FIG. 12) by the driving unit 261 from the state of FIG. 12, the connecting rod 297 to which the other end (upper end) of the driving rod 273 is attached. The connecting members 296a and 296b also move downward in the drawing. As described above, both the connecting members 296a and 296b are rotatably attached to the other mounting plate 255 so that the straight line where the edge portion 255ae exists is the rotation center, and the straight line where the edge portion 55ae exists is the rotation center. Therefore, the distance between the edge 255ae and the edge 55ae is constant, and the edge 255ae remains parallel to the edge 255ae. The other mounting plate 255 and the one mounting plate 55 are rotated so that the edge 55ae moves downward in the drawing, and the state shown in FIG. 13 is obtained. When the transition from FIG. 12 to FIG. 13 is performed, the one support shaft 41 moves along the guide rails 31a and 31b so as to approach the other support shaft 241 in parallel with the Y axis, and the other support shaft 241 The guide rails 31a and 31b move so as to approach the one support shaft portion 41 in parallel with the Y axis (the one support shaft portion 41 and the other support shaft portion 241 move along the guide rails 31a and 31b with the Y axis). Move so as to approach each other in parallel.)

By driving the drive rod 273 downward in the figure (arrow R in FIG. 12) by such a drive part 261, the positive direction around the other support shaft 243 of the other test piece attachment part 251 (from FIG. 12 to FIG. 13). Rotation in the clockwise direction, and rotation in the reverse direction around the one support shaft 43 of the one-piece test piece mounting portion 51 (counterclockwise as in FIGS. 12 to 13). In these two rotations, the distance between the edge portion 255ae and the edge portion 55ae is kept constant, the edge portion 255ae and the edge portion 55ae are kept in parallel, and the one test piece mounting portion 51 and the other test portion are also tested. It moves in parallel with the Y axis in a direction approaching each other with the piece mounting portion 251.
Such a rotation in the forward direction around the other support shaft 243 of the other test piece mounting portion 251 and a rotation in the reverse direction around the one support shaft 43 of the one test piece mounting portion 51 are from the state of FIG. Through the state of FIG. 13, the state rotates until it reaches the state of FIG. 14 (in the state of FIG. 14, the upper surface 255 a of the other mounting plate 255 and the upper surface 55 a of the one mounting plate 55 are substantially parallel). (These two rotations are stopped in the state of FIG. 14). In the state of FIG. 14, the test piece 101 (not shown in FIGS. 12 to 14) attached to the upper surface 255a of the other attachment plate 255 and the upper surface 55a of the one attachment plate 55 is folded. become.

From the state of FIG. 14 in which the test piece 101 is folded, the drive rod 273 is moved upward in the figure (in the direction of the arrow Q in FIG. 14) by the drive unit 261, thereby passing the state of FIG. Return to. As described above, the drive rod 273 is moved downward in the figure from the state shown in FIG. 12 (the test piece 101 is flat), and the state shown in FIG. 13 (the test piece 101 is folded approximately 90 degrees). 14 (the test piece 101 is folded), and then the drive rod 273 is moved upward from the state of FIG. 14 to return to the state of FIG. 12 via the state of FIG. Since the test piece 101 is folded from the flat state and returns to the flat state again, the test (one cycle) in which the test piece 101 is folded once can be performed. That is, since the test piece 101 can be folded once by reciprocating the driving rod 273 once, a test for folding the test piece 101 plural times can be performed by performing a plurality of reciprocating motions of the driving rod 273.
In such a folding test of the test piece 101 (operating in the order of FIG. 12, FIG. 13, FIG. 14, FIG. 13, FIG. 12), as described with reference to FIG. The edges 255ae and 55ae are always parallel, the distance K between them is kept constant, and belong to one plane (XY plane) perpendicular to the Z axis. In the folding test of the test piece 101, the upper surface 255a and the upper surface 55a are always plane-symmetric with respect to the plane P (see FIG. 8) that is the XZ plane having the same distance from the edges 255ae and 55ae and perpendicular to the Y axis. It turns to become.

The operation of the second tester 211 is the same as that shown in FIG. 8 used for explaining the operation of the first tester 11. The operation of the second tester 211 will be described with reference to FIG. 8 again. In FIG. 8, the reference numbers of the components of the second tester 211 are shown in parentheses. In the second tester 211 as well, FIG. 8 is a view showing the other mounting plate 255, the one mounting plate 55, and the test piece 101 attached to them as viewed from a direction parallel to the X axis. a) shows the state of FIG. 12, FIG. 8 (b) shows the state of FIG. 13, and FIG. 8 (c) shows the state of FIG.
As shown in FIGS. 8A, 8B, and 8C, two upper surfaces 255a that rotate in plane symmetry with respect to the plane P around the edges 255ae and 55ae that are parallel to each other and have a constant distance K. Between 55a, the test piece 101 attached to the upper surface 255a and the upper surface 55a is bent. Therefore, the test piece 101 located in the vicinity of the edge portion 255ae, the vicinity of the edge portion 55ae, and between the edge portions 255ae and 55ae is bent with substantially the same bending radius, and the bending condition is unexpected depending on the position of the test piece 101. Therefore, a highly reproducible test can be performed. And the bending radius of the test piece 101 can be changed by changing the distance K (K / 2 is almost the bending radius of the test piece 101). Similarly to the first tester 11, the second tester 211 can be freely changed until the distance K becomes 0, so that the bending radius of the test piece 101 can be made extremely small. Can be used for testing.

Further, in the second tester 211, the edge 255ae of the upper surface 255a to which the test piece 101 is attached and the edge 55ae of the upper surface 55a to which the test piece 101 is attached are always parallel and the distance K is kept constant. However, by rotating the upper surface 255a around the edge 255ae (when viewed from the test piece 101) and by rotating the upper surface 55a around the edge 55ae (when viewed from the test piece 101) A very short test piece 101 (if the test piece 101 is longer than the total length of the length applied to the edge 255ae and the edge 55ae, the length attached to the upper surface 255a, and the length attached to the upper surface 55a) Test is possible).
In addition, in the second tester 211, the test piece 101 is attached to the upper surface 55a and the upper surface 255a, and when viewed from the test piece 101, the edges 55ae and 255ae are always parallel and centered on the edges 55ae and 255ae. In order to rotate the upper surfaces 55a and 255a while the distance K is kept constant, the part of the test piece 101 existing between the vicinity of the edge 255ae and the vicinity of the edge 55ae is deformed, but the other test pieces 101 The remaining portion (mainly the portion facing the upper surface 55a and the upper surface 255a) is hardly deformed. This selectively deforms a portion to be subjected to a deformation test, and enables an accurate and highly reproducible deformation test.
In the second tester 211, the upper surface 55a and the upper surface 255a to which the test piece 101 is attached move only to cause the intended bending of the test piece 101. Prevent the test piece 101 from being subjected to unintentional deformation (for example, a force that causes the test piece to bend unexpectedly and unevenly, a force that pulls the test piece, or a force to compress the test piece 101). Can be reduced.

  As described above, the second tester 211 includes the first attachment surface (here, the upper surface 255a) on which the test body (here, the test piece 101) is attached, and the first line segment S1 (see FIG. 12; here, the edge). A first mounting plate (here, the other mounting plate 255) having a first edge (edge 255ae) that is an edge of the first mounting surface (upper surface 255a) existing above the line segment having 255ae. A second mounting surface (here, the upper surface 55a) to which the test body (test piece 101) is mounted and a second mounting surface existing on the second line segment S2 (see FIG. 12, a line segment where the edge 55ae exists here). A gap between which the second mounting plate (one mounting plate 55) having the second edge (edge 55ae) which is the edge of the (upper surface 55a) and the test body (test piece 101) is bridged is the first edge. Formed between the edge (edge 255ae) and the second edge (edge 55ae) As shown, the first line segment S1 and the second line segment S2 are parallel to each other and hold a relative position, while the first mounting plate (the other mounting plate 255) is relatively positioned with respect to the second line segment S2. The first line segment S1 can be rotated about the first line segment, and the second mounting plate (one mounting plate 55) can be rotated about the second line segment S2 relative to the first line segment S1. As described above, the supporting means (here, the guide rails 31a and 31b, the slide portions 45a and 45b, the one support shaft 43, the second attachment plate (one attachment plate 55) and the first attachment plate (the other attachment plate 255) are supported. Mounting portions 53a and 53b, slide portions 245a and 245b, the other support shaft 243, mounting portions 253a and 253b, and connecting members 296a and 296b.), And a first mounting plate (the other mounting plate 255) Relative to the second line segment S2 Rotating means for rotating the second mounting plate (one mounting plate 55) around the second line segment S2 relative to the first line segment S1 The driving unit 261, the driving rod 273, the connecting members 296a and 296b, and the connecting rod 297 are included.). As with the second tester 211, support means (guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, attachment portions 53a and 53b, slide portions 245a and 245b, the other support shaft 243, attachment Parts 253a, 253b, and connecting members 296a, 296b.) (A) The first mounting plate (the other mounting plate 255) is rotated around the first line segment S1 relative to the second line segment S2. Both (b) the second mounting plate (one mounting plate 55) can be rotated around the second line segment S2 relative to the first line segment S1 are satisfied. The first mounting plate (the other mounting plate 255) and the second mounting plate (the one mounting plate 55) are supported so that the rotation means (the driving portion 261, the driving rod 273, the connecting members 296a and 296b, the connecting rod) 297)) (c) first Rotating the attachment plate (the other attachment plate 255) relative to the second line segment S2 relative to the first line segment S1, (d) moving the second attachment plate (one attachment plate 55) to the first line. By performing both of the rotation about the second line segment S2 relative to the segment S1, the test piece 101 is mainly located near the first line segment S1 and the second line segment S2. The test can be performed with high reproducibility.

In the second tester 211, a plane that is perpendicular to the plane including the first line segment S1 and the second line segment S2 and that has the same distance from the first line segment S1 and the distance from the second line segment S2. And the angle formed by the reference surface (plane P) and the first mounting surface (upper surface 255a) and the angle formed by the reference surface (plane P) and the second mounting surface (upper surface 55a) are equal. The moving means (including the driving unit 261, the driving rod 273, the connecting members 296a, 296b, and the connecting rod 297) rotates the first mounting plate (the other mounting plate 255) and the second mounting plate (the one mounting plate 55). Is.
In the second tester 211, support means (guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, attachment portions 53a and 53b, slide portions 245a and 245b, the other support shaft 243, attachment portion 253a, 253b and connecting members 296a and 296b), the first attachment plate (the other attachment plate 255) is attached directly or indirectly to be rotatable around the first straight line including the first line segment S1, A second attachment plate (one attachment plate 55) is attached directly or indirectly so as to be rotatable around a second straight line including the second line segment S2, and the distance between the first straight line and the second straight line is constant. Both edge part positional relationship holding means (here, connecting members 296a, 296b) are held.
In the second tester 211, support means (guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, attachment portions 53a and 53b, slide portions 245a and 245b, the other support shaft 243, attachment portion 253a, 253b and connecting members 296a and 296b) are a first mounting plate (the other mounting plate 255) on one end side of the first line segment S1 and a second mounting plate (one mounting plate) on one end side of the second line segment S2. 55), both edge portion positional relationship holding means (connecting member 296a) on one end side, the first mounting plate (other mounting plate 255) on the other end side of the first line segment S1, and the second line segment S2. The other end side positional relationship holding means (connecting member 296b) attached to the second attachment plate (one attachment plate 55) on the other end side.

In the second tester 211, support means (guide rails 31a and 31b, slide portions 45a and 45b, one support shaft 43, attachment portions 53a and 53b, slide portions 245a and 245b, the other support shaft 243, attachment portion 253a, 253b and connecting members 296a and 296b include a first attachment plate (the other attachment plate) that is rotatable about a first rotation axis (the center axis of the other support shaft 243) parallel to the first line segment S1. 255) and supports the second mounting plate (one mounting plate 55) so as to be rotatable around a second rotating shaft (the central axis of the one supporting shaft 43) parallel to the second line segment S2. Mounting plate support means (guide rail 31a, guide rail 31a, etc.) that can change the distance between the first rotation shaft (center axis of the other support shaft 243) and the second rotation shaft (center axis of the one support shaft 43). 31b, slide part 45a, 45b, one Lifting shaft 43 has mounting portions 53a, 53b, the slide portion 245a, 245b, while the support shaft 243, the mounting portion 253a, a.) Containing 253b.
In the second tester 211, the distance between the first line segment S1 and the first rotation shaft (the central axis of the other support shaft 243), the second line segment S2 and the second rotation shaft (one support). The distance between the center axis 43 and the shaft 43 is equal.
In the second tester 211, the edge existence surface which is a plane including the first line segment S1 and the second line segment S2, the first rotation shaft (the central axis of the other support shaft 243), and the second time. The rotation axis existence plane which is a plane including the dynamic axis (the central axis of the one support shaft 43) belongs to the same plane or the same plane.

  In the second tester 211, mounting plate support means (guide rails 31a, 31b, slide portions 45a, 45b, one support shaft 43, mounting portions 53a, 53b, slide portions 245a, 245b, the other support shaft 243, mounting portion) 253a and 253b include first mounting plate support means (supporting the other mounting plate 255) so as to be rotatable around the first rotating shaft (the central axis of the other supporting shaft 243). Here, the second support plate 243 and the mounting portions 253a and 253b are included.) And the second mounting plate (one mounting plate 55) is rotatable about the second rotating shaft (the central axis of the one supporting shaft 43). Second supporting plate supporting means for supporting (here, including one supporting shaft 43 and mounting portions 53a and 53b), a first rotating shaft (the center axis of the other supporting shaft 243) and a second rotating shaft (one supporting). The central axis of the shaft 43) A direction (in this case, a direction parallel to the Y axis) perpendicular to the first rotation axis (the center axis of the other support shaft 243) and the second rotation axis (the center axis of the one support shaft 43) on the surface of the rotation axis. The relative position of the second attachment plate support means (including the one support shaft 43 and the attachment portions 53a and 53b) with respect to the first attachment plate support means (including the other support shaft 243 and the attachment portions 253a and 253b) with respect to the displacement direction. The first mounting plate support means (including the other support shaft 243 and the mounting portions 253a and 253b) and the second mounting plate support means (including the one support shaft 43 and the mounting portions 53a and 53b) are supported in a variable manner. Basic support means (here, including guide rails 31a and 31b, slide portions 45a and 45b, slide portions 245a and 245b).

In the second tester 211, a rotation axis existence surface (a rotation axis existing surface) that is a plane including the first rotation axis (the center axis of the other support shaft 243) and the second rotation axis (the center axis of the one support shaft 43). Here, the orthographic projection of the first line segment S1 onto the XY plane and the orthographic projection of the second segment S2 onto the pivot axis existing plane are the first pivot axis (the central axis of the other support shaft 243). ) And the second rotation shaft (the central axis of the one support shaft 43), and support means (guide rails 31a, 31b, slide portions 45a, 45b, one support shaft 43, mounting portions 53a, 53b, slide) Portions 245a and 245b, the other support shaft 243, the attachment portions 253a and 253b, and the connecting members 296a and 296b.) Are pivotable around a first straight line including the first line segment S1. The other attachment plate 255) is attached directly or indirectly, and the second line segment S2 is Both edges that the second mounting plate (one mounting plate 55) is mounted directly or indirectly so as to be rotatable around the second straight line that holds the distance between the first straight line and the second straight line. Positional relationship holding means (connecting members 296a and 296b) are included, and rotating means (including the drive unit 261, the drive rod 273, the connecting members 296a and 296b, and the connecting rod 297) is a rotating shaft existence surface (XY plane). Reciprocating drive means (including a drive part 261, a drive bar 273, and a connection bar 297) for reciprocating both edge position relationship holding means (connection members 296a, 296b) in a direction perpendicular to the Z axis direction (Z-axis direction). It is what has.
In the second tester 211, the distance from the first line segment S1 is perpendicular to the plane (parallel to the XY plane) including the first line segment S1 and the second line segment S2, and the second line segment S2. The first distance between the reference plane (plane P) and the first rotation axis (center axis of the other support shaft 243), which is a plane having the same distance, is the reference plane (plane P) and the second rotation axis (one). Both the first rotation shaft (the center axis of the other support shaft 243) and the second rotation shaft (the center axis of the one support shaft 43) are equal to the second distance from the second shaft (the center axis of the support shaft 43). The absolute position changes.

DESCRIPTION OF SYMBOLS 11 1st test device 21 Frame part 23 Top plate part 23a Upper surface 25 Bar-shaped part 31a, 31b Guide rail 41 One support shaft part 43 One support shaft 45a, 45b Slide part 51 One test piece attachment part 53a, 53b Attachment part 55 One Mounting plate 55a Upper surface 55ae Edge portion 61 Driving portion 73 Driving shaft 81 Other test piece mounting portion 83a, 83b Mounting portion 85 Other mounting plate 85a Upper surface 85ae Edge portion 91 Link portion 92 Link shaft 93, 95 Angle member 94, 96 Connecting member 101 Test piece 211 Second tester 241 Other support shaft portion 243 Other support shaft 245a, 245b Slide portion 251 Other test piece attachment portion 253a, 253b Attachment portion 255 Other attachment plate 255a Upper surface 255ae Edge portion 261 Drive portion 273 Drive rod 291 Link Part 296a, 296b Member 297 connecting rod S1 first segment S2 second segment

Claims (13)

A first mounting plate having a first mounting surface to which the test body is mounted, and a first edge that is an edge of the first mounting surface on the first line segment;
A second mounting plate having a second mounting surface to which the test body is mounted, and a second edge that is an edge of the second mounting surface on the second line segment;
While the first line segment and the second line segment are parallel to each other and maintain a relative position so that a gap is formed between the first edge and the second edge, The first mounting plate can be rotated around the first line segment relative to the second line segment, and / or the second mounting plate can be rotated relative to the first line segment. Support means for supporting the first mounting plate and the second mounting plate so that the first mounting plate and the second mounting plate can be rotated, and the first mounting plate is centered on the first line segment relative to the second line segment. And / or rotating means for rotating the second mounting plate about the second line segment relative to the first line segment.     An angle formed by the reference surface and the first mounting surface, which is a plane perpendicular to the plane including the first line segment and the second line segment and the distance from the first line segment is equal to the distance from the second line segment; The deformation tester according to claim 1, wherein the rotating means rotates the first mounting plate and the second mounting plate so that the angle formed by the reference surface and the second mounting surface is equal.     The support means can be rotated around a second straight line including the second line segment, while the first mounting plate is directly or indirectly mounted so as to be rotatable around the first straight line including the first line segment. The second mounting plate is directly or indirectly attached to the second mounting plate, and has both edge portion positional relationship holding means for holding the distance between the first straight line and the second straight line constant. Deformation tester.     The support means includes both edge portion positional relationship holding means on one end side attached to the first attachment plate on one end side of the first line segment and the second attachment plate on one end side of the second line segment, and the first line segment. The both edge part positional relationship holding | maintenance means of the other end side attached to the 1st attachment plate of the other end side, and the 2nd attachment plate of the other end side of a 2nd line segment, The both edge part positional relationship holding means of Claim 3 comprised. Deformation tester.     The support means supports the first mounting plate so as to be rotatable around a first rotation axis parallel to the first line segment, and is rotatable around a second rotation axis parallel to the second line segment. 5. The apparatus according to claim 1, further comprising a mounting plate supporting unit that supports the second mounting plate and is capable of changing a distance between the first rotating shaft and the second rotating shaft. Deformation tester.     The deformation tester according to claim 5, wherein a distance between the first line segment and the first rotation axis is equal to a distance between the second line segment and the second rotation axis.     An edge portion existence surface that is a plane including the first line segment and the second line segment and a rotation axis existence surface that is a plane including the first rotation axis and the second rotation axis are parallel or the same plane. The deformation tester according to claim 6, which belongs to the above.     The attachment plate support means includes a first attachment plate support means for supporting the first attachment plate so as to be rotatable around the first rotation axis, and a second attachment plate capable of being rotated around the second rotation axis. It is a direction perpendicular to the 1st rotation axis and the 2nd rotation axis in the rotation axis existence plane which is the plane containing the 2nd mounting plate support means to support, the 1st rotation axis, and the 2nd rotation axis. And a basic support means for supporting the first mounting plate support means and / or the second mounting plate support means in such a manner that the relative position of the second mounting plate support means with respect to the first mounting plate support means can be changed with respect to the displacement direction. The deformation tester according to any one of claims 5 to 7. The mounting plate support means includes a first rotating rod that supports the first mounting plate so as to be rotatable around the first rotating shaft,
The turning means includes a turning drive means to which the first turning rod for turning the first turning rod around the first turning shaft is attached, and the second attachment plate by the turning of the first turning rod. The deformation tester according to claim 5, further comprising: a link mechanism that passively rotates the second rotation axis around the second rotation axis. The support means can be rotated around a second straight line including the second line segment, while the first mounting plate is directly or indirectly mounted so as to be rotatable around the first straight line including the first line segment. The second attachment plate is attached directly or indirectly, and has both edge portion positional relationship holding means for holding the distance between the first straight line and the second straight line constant,
The deformation tester according to claim 9, wherein the link mechanism moves both edge portion positional relationship holding means so that the second attachment plate rotates around the second rotation axis.     The absolute position of the first rotating shaft is unchanged, and the distance between the first rotating shaft and the second rotating shaft changes as the absolute position of the second rotating shaft moves. The deformation tester according to claim 9 or 10, wherein An orthographic projection of the first line segment onto the plane of rotation axis that is a plane including the first pivot axis and the second pivot axis, and an orthographic projection of the second line segment onto the plane of the pivot axis are Exists between the first pivot and the second pivot,
The support means can be rotated around a second straight line including the second line segment, while the first mounting plate is directly or indirectly mounted so as to be rotatable around the first straight line including the first line segment. The second attachment plate is attached directly or indirectly, and has both edge portion positional relationship holding means for holding the distance between the first straight line and the second straight line constant,
The deformation tester according to any one of claims 5 to 8, wherein the rotating means includes reciprocating drive means for reciprocating both edge portion positional relationship holding means in a direction perpendicular to the surface where the rotating shaft exists. .     The first distance between the reference plane and the first rotation axis, which is a plane perpendicular to the plane including the first line segment and the second line segment and the distance from the first line segment is equal to the distance from the second line segment. The deformation test according to claim 12, wherein the absolute position of each of the first rotation shaft and the second rotation shaft changes such that the absolute position of the first rotation shaft and the second rotation shaft is equal to a second distance between the reference plane and the second rotation shaft. vessel.

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