JP2010013862A - Beam connecting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a beam connecting structure which enables an angle of mounting of a beam on a support to be easily adjusted with respect to vertical and horizontal directions, in accordance with an installation location such as a slope and a corner section, when the beam is mounted on the support, and which can firmly support an end of the beam. <P>SOLUTION: This beam connecting structure is constituted as follows: a protruded piece 32 is protruded toward the outside of the support 1 on a mounting bracket 3 which is mounted in a horizontally-turnable manner on the support 1; a joint 4, which has two connecting pieces 42 protruded from a leading end of a tube portion 41 undergoing the insertion of the end 21 of the beam, is mounted at the end 21 of the beam; the protruded piece 32 is arranged between the two connecting pieces 42 of the joint 4; and the joint 4 is vertically turnable on a bolt 6 passing through the two connecting pieces 42 and the protruded piece 32, as an axis. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fence or a fence attached along a site boundary or a neighboring land boundary of a house, a factory, a park, or the like, and more particularly to a beam connection structure that is suitably used in a sloped installation location or corner.

  The fences and fences that are installed along the boundary of the site of houses, factories, parks, etc., and the boundary of the adjacent land are generally equipped with a plurality of support posts along the installed boundaries, etc. Panel bodies and beams are installed. With respect to the connection structure between the beam and the support, various forms have been proposed in consideration of required strength and workability, or installation locations such as slopes and corners.

  For example, a column, a bracket, a beam, and a concave washer are provided, and the bracket is integrally provided with a mounting portion for mounting to the column and a fixing portion for fixing the beam, and the concave washer is attached to the mounting portion. A fitting projection of a hemispherical shape that fits in a freely rotating manner, the bracket mounting portion is provided at a required position of the column, the concave washer is interposed, and the fitting convex portion of the bracket is provided on the concave washer. A protective fence is proposed, which is configured to be configured to be able to fix the beam to an arbitrary angle with respect to the support through the bracket by fitting with a bolt, a nut, and a fitting projection by being freely fitted. (For example, refer to Patent Document 1). This fence can adjust the fixed angle of the beam with respect to the support column by one joint of the concave washer and the fitting convex portion of the bracket, and can improve the efficiency of facility work.

  A cross member is attached between the columns using a coupling member, and the coupling member covers the end of the cross member. The coupling member is attached to the column so that it can be moved and fixed around the axis of the column. There has been proposed a fence characterized in that an end portion of a cross member is connected to a member so as to be rotatable around a horizontal axis (see, for example, Patent Document 2). This fence can obtain a fence with high bendability in the vertical direction and high bendability in the horizontal direction, and the joint between the support column and the cross member is covered with a coupling member, so it is necessary to prepare a separate cover member The number of fence components is reduced, and the construction time can be reduced.

Japanese Utility Model Publication No. 56-129468 Japanese Patent Laid-Open No. 10-205175

  However, the protective fence has the following problems. That is, by fitting the hemispherical fitting convex part and the concave washer in a freely rotatable manner, the mounting angle of the bracket with respect to the column is adjusted simultaneously in the vertical direction and the horizontal direction. In order to firmly fix with the washer, the bolt hole of the fitting convex part must be larger than the screw part of the bolt, smaller than the head part, and the bolt head part must be smaller than the inner diameter of the fitting convex part. It was difficult to set a large adjustment range.

  The fence has a structure in which the coupling member is mounted so as to be movable / fixable around the axis of the column and covers the end portion of the cross member, and in order to adjust the vertical position of the cross member, Since there is a space between the cross member, the vertical position adjustment is limited. On the other hand, the coupling member holds the cross member only from the horizontal direction. Since the vertical member is supported in a state where there is a space in the vertical direction, the horizontal member has a possibility that the positional deviation in the vertical direction may rattle.

  The present invention solves the above-mentioned problems, and when mounting the beam to the support column, the beam mounting angle can be adjusted vertically and horizontally with respect to the support column in accordance with the installation location such as an inclined ground or a corner. The present invention is intended to provide a beam connection structure that can be easily supported and can firmly support the beam end.

In order to achieve the above object, the present invention has the following configuration.
That is, the beam connection structure according to the present invention is a beam connection structure in which the end of the beam is connected to the outer peripheral surface of the columnar column, and the mounting bracket is attached to the column so as to be rotatable in the horizontal direction. In addition, a vertical plate-like projecting piece protrudes from the mounting bracket toward the outside of the support column, and two vertical plate-like projections are formed at the beam end from the tip of the cylindrical portion into which the beam end is inserted. A joint in which connecting pieces protrude from each other at an interval is attached, the projecting piece is disposed between two connecting pieces of the joint, and the two connecting pieces and a bolt that penetrates the projecting piece The joint is configured to be pivotable in the vertical direction about the axis.

  In the beam connection structure according to the present invention, two protrusions of the mounting bracket are formed in parallel with a distance from each other, and a pair of two joints each having a connection piece and a semi-cylindrical cylindrical portion are provided. A halved joint member is formed, and two projecting pieces are disposed between the two connecting pieces, and the two projecting pieces are sandwiched between the two connecting pieces via bolts. At this time, a spacing member that prevents the protrusions from being deformed inward may be provided between the two protrusions.

  Further, in the beam connection structure according to the present invention, the spacing member is externally fitted to the bolt penetrating the connection piece and the projecting piece, and is constituted by a tube provided between the two projecting pieces. May be.

  According to the present invention, a mounting bracket is attached to the support column so as to be rotatable in the horizontal direction, and a vertical plate-shaped projecting piece projects from the support column toward the outside of the support column. A joint in which two vertical plate-like connecting pieces protrude from the tip of the cylindrical part into which the beam end is inserted is spaced from each other, and the protrusion is interposed between the two connecting pieces of the joint. Since the joints are pivotable in the vertical direction with the two connecting pieces and the bolts penetrating the projecting pieces as axes, the mounting angle of the beam with respect to the column is in the vertical and horizontal directions. It is possible to adjust each of them, and it is possible to take a relatively large adjustment angle with respect to the vertical direction of the beam, and even if the adjustment angle becomes relatively large, the beam end is inserted into the tube portion of the joint. Because the end of the beam is not exposed to the outside, There is no prejudice to the watch of.

  In the beam connection structure according to the present invention, two protrusions of the mounting bracket are formed in parallel at a distance from each other, and the joint has two pairs each including one connection piece and a semi-cylindrical cylindrical portion. And two projecting pieces are disposed between the two connecting pieces, and two projecting pieces are provided between the two connecting pieces via the bolts. If a spacing member is provided between the two projecting pieces to prevent the projecting pieces from being deformed inward when sandwiched, the two connecting pieces can be connected via bolts. When the two projecting pieces are sandwiched, the degree of the sandwiching can be appropriately maintained, so that an excessive sandwiched state and accompanying deformation of the connecting piece or the projecting piece can be prevented.

  Further, in the beam connection structure according to the present invention, the spacing member is formed by a tube that is externally fitted to the bolt that penetrates the connection piece and the protruding piece, and is provided between the two protruding pieces. In this case, when the two projecting pieces are sandwiched between the two connecting pieces via the bolts, the clamping state can be adjusted by adjusting the length of the spacing member. Also, since it is externally fitted to the bolt, it is possible to form the spacing member separately from the mounting member, making it easy to create each member, and the spacing member has two projecting pieces. The pinched state can be stably maintained without being easily disengaged.

  Next, the best mode for carrying out the present invention will be specifically described with reference to the drawings.

  That is, FIG. 1 is a front view showing an embodiment to which a beam connection structure according to the present invention is applied, and is connected with an end portion directed to the outer peripheral surface of a columnar column 1 erected at an appropriate interval. The connection structure of the beam 2 is shown. The column 1 and the beam 2 represent a case where a metal pipe beam is connected to a hollow pipe column made of steel, aluminum, stainless steel, etc., but is not necessarily limited to a hollow pipe. Also, in terms of usage and material, the present invention is similarly applied to, for example, a pseudo-wood fence or a wooden handrail fence made of resin.

  In FIG. 1, the shape is a fence in which a mesh panel M is attached below the beam 2, and the beam 2 and the mesh panel M are connected by a band member R. Thereby, when this fence is installed in a snowy area, a part of the snow load applied to the upper part of the mesh panel M can be supported by the beam 2, so the load on the mesh panel M can be reduced. In addition, the band member R can prevent the mesh panel M from being bent downward. The member attached below the beam 2 may be a vertical plate-like panel or a vertical lattice-like panel, and can be appropriately selected as necessary.

  FIG. 2 is an enlarged perspective view of the main part of FIG. 1, and mounting brackets 3 are respectively attached to the outer peripheral surfaces of adjacent columns 1, and joints 4 are respectively attached to end portions 21 of beams 2. The beam 2 is connected to the column 1 by connecting the mounting bracket 3 and the joint 4.

  3 is an explanatory view of the mounting bracket 3 and the joint 4 shown in FIGS. 1 and 2, wherein (a) is a front view, (b) is a plan view, (c) is a left side view, and (d). Is a right side view, and (e) is a longitudinal sectional view in the AA section of (a). The mounting bracket 3 is formed with a mounting base 31 that is mounted on the outer peripheral surface of the column 1 and a vertical plate-shaped projecting piece 32 that extends from the mounting base 31 toward the outside of the column 1. In the present embodiment, the mounting base 31 has a curved shape along the outer peripheral surface of the support column 1, and the projecting pieces 32 are formed in parallel at intervals from both ends of the curved portion. As described above, the mounting bracket 3 is substantially U-shaped in plan view. For example, only one protruding piece 32 is formed, and is formed in a substantially horizontal T shape or L shape in plan view. It may be a thing.

  FIG. 4 is an exploded perspective view showing a mounting structure between the support column 1 and the mounting bracket 3. A laterally long hole 33 is provided in the mounting base 31 of the mounting bracket 3 along the bending direction. The attachment base 31 is attached to the support 1 via the attachment bolt B penetrating the support 1 through the attachment hole 11 formed in the support 1 from the horizontally elongated hole 33, and the support 1 is within the horizontal range of the horizontally elongated hole 33. The mounting position of the mounting base 31 can be adjusted. In the present embodiment, the horizontally elongated hole 33 is formed in two upper and lower stages on the attachment base 31. Thereby, when attaching the two attachment metal fittings 3 to the support | pillar 1, the attachment bolt B used for each does not overlap, but it can fix respectively.

  If the attachment base 31 is formed in a curved shape along the support column 1 as in the present embodiment, it can be arranged at any position on the outer peripheral surface of the support column 1 and is attached to the support column 1 via the attachment bolt B. Even after attachment, it is preferable because the attachment state can be stably maintained. For example, it may be formed in a flat plate shape. In this case, in order to further stabilize the mounting state, two holding pieces project from the both end portions of the flat plate portion toward the column, and the column 1 abuts on the tip or inside of the two holding pieces. What is necessary is just to form. When mounting the mounting bracket 31 at an arbitrary position on the outer peripheral surface of the column 1, the mounting bolt is mounted from the round hole provided at the position where the mounting base 31 contacts the column 1 to the horizontally long hole provided in the column 1 through the mounting bolt. What is necessary is just to fix a base to the support | pillar 1. FIG.

  FIG. 5 shows a modification of the beam connection structure according to this embodiment, and is a plan view in which two mounting brackets 3 are attached to one strut 1. (A) is a form in which the mounting bracket 3 is mounted at a position facing each other by a single mounting bolt B, and (b) is a single mounting using the laterally long hole 33 through which the mounting bolt B passes from the state of (a). A configuration in which the mounting brackets 3 are arranged close to each other by the bolt B, (c) is a configuration in which the mounting brackets 3 are disposed at right angles to each other, and (d) is a state in which the horizontally elongated holes 33 are used from the state of (c). The form arrange | positioned so that the attachment metal fittings 3 may leave | separate with the two attachment bolts B is shown. As shown to (a)-(d), the mutual positional relationship can be adjusted about the two attachment brackets 3 attached to the support | pillar 1 by utilizing the horizontally long hole 33 of 2 steps | paragraphs.

  6 is a partially exploded perspective view of the beam connection structure of FIG. First, the joint 4 includes a cylindrical portion 41 into which the beam end portion 21 of the beam 2 is inserted, and two connection pieces 42 that protrude from the distal end of the cylindrical portion 41 at a distance from each other. . In this embodiment, it is formed of two pairs of half-shaped joint members 43 formed of one connection piece 42 and a semi-cylindrical tube portion 41. The protruding piece 32 of the mounting bracket 31 is disposed between the two connecting pieces 42, and the beam end portion 21 is disposed between the two semi-cylindrical cylindrical portions 41.

  Next, the connection structure between the mounting bracket 3 and the joint 4 will be described in detail. From the square hole 44 formed in the connection piece 42 of one connection member 43 to the round hole 34 formed in the two protruding pieces 32 of the mounting bracket 3, the square hole of the connection piece 42 of the other joint member 43. When the shaft bolt 6 is penetrated up to 44, the joint 4 can be rotated in the vertical direction with respect to the projecting piece 32 around the shaft bolt 62. Further, the fixing bolt 7 is connected to the tube portion 41 of the other joint member through the beam end portion 21 from the long-angle hole 45 formed in the semi-cylindrical tube portion 41 of the one connection member 43 in the longitudinal direction. The beam end 21 is fixed in the cylindrical portion 41 by passing through and fastening the nut N2 to the fixing bolt 7.

  In the semi-cylindrical cylindrical portion 41, the tip portion from which the connection piece 42 protrudes has substantially the same vertical dimension as the vertical plate-like connection piece 42, and is bent in the horizontal direction from the upper and lower ends thereof. And is gradually bent in the longitudinal direction from the distal end portion, and is bent along the outer peripheral surface of the beam 2 at the insertion end portion of the beam end portion 21. Thereby, on the insertion end side of the tube portion 41, a gap is hardly formed between the tube end 41 and the end portion of the tube portion 41 from which the connection piece 42 protrudes, while the vertical dimension of the connection piece 42 is increased. Furthermore, since the beam end 21 is supported by the insertion end of the tube 41 and the fixing bolt 7, the beam end 21 inserted into the tube 41 can be firmly supported. As in the present embodiment, the vertical position of the beam end portion 21 inserted into the tube portion 41 is as long as the distance between the upper and lower bent portions of the tube portion 41 is substantially the same as the outer diameter of the beam end portion 21. Misalignment and rattling can be suppressed.

  Further, when the semi-cylindrical tube portions 41 of the two pairs of joint members 43 are brought into contact with each other along the beam end portion 21, a gap is generated between the upper and lower ends of the semi-cylindrical tube portions 41. It is made like that. As a result, when the cylindrical portion 41 is sandwiched between the outer peripheral surface of the beam end portion 21 via the fixing bolt 7, the inner peripheral surface of the cylindrical portion 41 is press-contacted along the longitudinal direction of the cylindrical beam end portion 21. In this state, the displacement and backlash of the beam end 21 can be suppressed in the cylindrical portion 41.

  The screw base end 71 of the fixing bolt 7 is formed in a square shape, is fitted into the rectangular long hole 45 of the cylindrical portion 41, and can be inserted at an appropriate position in the longitudinal direction of the rectangular long hole 45. As a result, when the nut N2 is screwed onto the fixing bolt 7, the mounting position of the beam end portion 21 in the longitudinal direction can be adjusted, and further, the joint rotation of the fixing bolt 7 can be suppressed. However, even if it is possible to work only from one of the front side or the back side of a fence or fence, workability does not deteriorate.

  Similarly, the screw base 61 of the shaft bolt 6 is formed in a square shape and is fitted into the square hole 44 of the connection piece 42. Thereby, when screwing the nut N1 to the shaft bolt 6 and fixing the mounting angle of the joint 4, it is possible to suppress the co-rotation of the shaft bolt 6, so that the front side of a fence, a fence or the like at the installation location Or even if it is a case where it can work only from one side of the back side, workability does not fall.

  In the present embodiment, the mounting bracket 3 and the joint 4 are formed by molding a metal plate material, but the mounting bracket 3 may be manufactured by a metal casting or a reinforced plastic molding. In these cases, the mounting bracket 3 and the joint 4 may be formed in a shape suitable for each manufacturing method.

  As shown in FIGS. 2 and 6, a spacing member 5 made of a tubular body is provided between the two projecting pieces 32 of the mounting bracket 3, and this spacing member 5 is externally fitted to the shaft bolt 6. Has been. As a result, when the nut N1 is screwed onto the shaft bolt 6 and tightened, the two projecting pieces 32 are pressed by the connecting piece 42 and elastically deformed inward. When the inner side surface is in contact with the side end of the spacing member 5, the inner side surface is not further deformed to the inner side, so that the inward deformation of the projecting piece 32 can be restricted. In addition, when the nut N1 is tightened on the shaft bolt 6 and the interval between the two connecting pieces 42 is narrowed, the connecting piece 42 or a part of the cylindrical portion 41 comes into contact with the beam end 21 and the contact point is used as a fulcrum. When the beam end 41 is sandwiched between the two semi-cylindrical tube portions 41 by the fixing bolt 7 and the nut N2, the separation distance of the joint member 43 increases on the insertion end portion side of the tube portion 41. Although the clamping may be insufficient, even when the length of the spacing member 5 is appropriately set and the nut N1 is sufficiently tightened to the shaft bolt 6 and the nut portion N1 is sufficiently tightened, the maximum horizontal separation distance of the cylindrical portion 41 is the beam. If the outer diameter of 2 is set to be approximately the same as or slightly longer, the above-described problems do not occur, and the beam end 21 is firmly fixed in the two semi-cylindrical cylindrical portions 41.

  The spacing member 5 is disposed between the two projecting pieces 32 as in the present embodiment, and the length can be easily adjusted by using a tube that is externally fitted to the shaft bolt 6. Adjustment of the minimum separation distance between the pieces 32 is also easy. In addition, the form of the space | interval holding | maintenance material 5 may be made into a square pipe shape, for example, and you may make it project from the inner surface of the protrusion piece 32. In the latter case, a protrusion is provided on the inner surface of at least one of the projecting pieces 32, or a bent portion is provided by bending the tip of at least one of the projecting pieces 32 inward, so that the tip of the protrusion or the bent portion is already present. It is good also as a structure which hold | maintains the minimum separation distance of the two protrusions 32 by contacting the inner surface of one protrusion 32, the other protrusion, or the front-end | tip of a bending part.

  The spacing member 5 uses a steel pipe, but may be manufactured by a metal casting or a reinforced plastic molding. In those cases, the spacing member 5 has a shape suitable for each manufacturing method. What is necessary is just to form.

  FIG. 7 is a front view showing a modification of the beam connection structure according to the present invention. Thus, even when the installation place is an inclined place, the beam 2 can be attached to the support column 1 via the joint 4 and the mounting bracket 3 at an inclination angle of the inclined place. Also in this embodiment, as shown in FIG. 5, it is possible to attach the beam 2 by appropriately adjusting the mounting angle in the horizontal direction. Furthermore, although FIG. 7 is installed on an uphill slope with respect to a horizontal ground, it can also be installed on a downhill slope.

  The beam support structure according to the present invention makes it easy to adjust the mounting angle of the beam with respect to the support column in the vertical and horizontal directions according to the installation location such as an inclined ground or a corner when attaching the beam to the support column. As well as being able to firmly support the beam end, not only when newly installing a fence or fence, but also when you want to add a beam to an existing fence or fence, It can be suitably used.

It is a front view which shows one Embodiment of the beam connection structure which concerns on this invention. It is a perspective view of the principal part of FIG. It is explanatory drawing of the principal part of FIG. FIG. 3 is a partial exploded view of a main part of FIG. 2. It is a front view which shows the deformation | transformation of FIG. FIG. 3 is a partial exploded view of a main part of FIG. 2. It is a front view which shows the deformation | transformation of the beam connection structure which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Beam 21 Beam end 3 Mounting bracket 31 Mounting base 32 Projection piece 33 Horizontally long hole 4 Joint 41 Tube part 42 Connection piece 43 Joint member 44 Square hole 45 Square long hole 5 Spacing material 6 Axial bolt 7 Fixing bolt B Attachment Bolt N, N1, N2 Nut R Band member

Claims (3)

  A beam connection structure in which a beam end is connected to an outer peripheral surface of a columnar column, and a mounting bracket is rotatably mounted on the column in a horizontal direction, and the mounting bracket has an outer side of the column. A vertical plate-shaped protruding piece protrudes toward the end, and two vertical plate-shaped connecting pieces protrude from the tip of the cylindrical portion into which the beam end is inserted at the beam end portion. The joint is mounted, and the projecting piece is disposed between the two connecting pieces of the joint, and the joint is rotated in the vertical direction around the two connecting pieces and a bolt passing through the projecting piece. A beam connecting structure characterized by being movable.   Two protrusions of the mounting bracket are formed in parallel at a distance from each other, and the joint is composed of a pair of half-split joint members each having one connection piece and a semi-cylindrical cylindrical portion. And two protrusions are disposed between the two connection pieces, and the two protrusions are sandwiched between the two connection pieces via the bolt. The beam connecting structure according to claim 1, wherein a spacing member for preventing the piece from deforming inward is provided between the two projecting pieces.   3. The beam connection according to claim 2, wherein the spacing member is formed of a tubular body that is externally fitted to the bolt that passes through the connecting piece and the protruding piece and is provided between the two protruding pieces. Construction.

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