JP5197281B2 - Connector - Google Patents

Description

  The present invention relates to a connector.

  2. Description of the Related Art Conventionally, as a connecting member for a concrete member (segment), one constituted by the following male joint and female joint is known.

  The male joint is provided with a screw shaft portion at the tip of a joint fitting protruding from the inter-ring coupling end surface of one segment, and an annular boss portion of the anchor member is loosely fitted to the screw shaft portion, and the boss portion is Tighten with a nut through an elastic washer, the tip of the anchor member is formed longer than the shaft, and a plurality of slits are provided from the tip of the anchor member to the required range in the length direction to form a plurality of anchor legs It is a thing.

On the other hand, the female joint is provided with a protrusion on the bottom surface of the cylindrical body that receives the anchor member and the fitting, and the outer diameter of the protrusion is the same as or slightly larger than the inner diameter formed by the plurality of anchor legs. And the inner diameter surface of the cylindrical body are formed in a size having a gap into which the anchor leg is forcibly inserted (see Patent Document 1).
Japanese Patent No. 3349096

  In the conventional connector, since the central portion of the connecting portion (anchor member) of the male joint where stress is most concentrated in the connecting device is hollow and divided into a plurality of parts, the durability at the connecting portion is weak and breaks. There is a problem that there is a fear.

  Moreover, since the structure of the male joint is complicated and there are many components, there exists a problem that manufacturing cost is high.

  Then, this invention aims at providing the coupling tool which solved said problem.

In order to solve the above-mentioned problem, the invention according to claim 1 includes a casing having a storage chamber whose front is open, and a peripheral wall provided on an outer peripheral portion of the storage chamber, and the inner peripheral surface of the peripheral wall has A division in which an engagement portion in which an engagement mountain and an engagement groove are continuous is formed in the axial direction of the female coupling member, and at least a part of the engagement portion is divided into a plurality of portions in the circumferential direction on the peripheral wall. A female connection member provided with a groove, provided with an elastic member at least from the tip of the peripheral wall to the rear of the split groove and on the entire periphery of the peripheral wall;
A connector comprising a male coupling member having a male locking member in which a locking portion in which a locking mountain and a locking groove are continuous in the axial direction of the male coupling member is engraved at the tip. And
By inserting the male locking member into the storage chamber of the female connecting member, the diameter of the front portion of the peripheral wall is increased, and then the diameter is reduced, and the locking portion of the female connecting member and the male The locking portion of the mold locking member meshes, and the diameter expansion preventing means prevents the diameter of the peripheral wall from expanding by engaging with the casing ,
When the casing and the diameter expansion prevention means are engaged, an elastic body is interposed between the casing and the diameter expansion prevention means .

The invention according to claim 2 is the invention according to claim 1, wherein the female connecting member and the male connecting member are combined,
A rear portion of the diameter expansion preventing means and a tip end portion of the casing are engaged, and a tip portion of the diameter expansion preventing means abuts on a connection member in which the male connection member is embedded. is there.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the outer peripheral surface of the front end portion of the casing is formed in a taper shape whose diameter increases from the front end side toward the back side, thereby preventing the diameter expansion. The inner peripheral surface of the rear end portion of the means is formed in a taper shape whose diameter decreases from the back side toward the opening side,
In the state where the female connecting member and the male connecting member are coupled, the front end portion of the casing and the rear portion of the diameter expansion preventing means are engaged with each other.

Invention of claim 4, the invention according to any one of claims 1 to 3, forms a latching ridges of the engaging portion of the male locking member in a helical shape, and the female coupling member The engaging crest of the engaging part is formed by a part of the spiral.

The invention according to claim 5 is the invention according to any one of claims 1 to 3 , wherein the locking mountain of the locking portion of the male locking member is the axis of the male locking member. Formed in an annular shape orthogonal to the
A locking crest of the locking portion of the female connecting member is formed by an annular part orthogonal to the axis of the female connecting member.

According to a sixth aspect of the invention according to any one of claims 1 to 5, said female coupling member and the male coupling member, characterized in that fixed to the concrete member is there.

The invention according to claim 7 is the invention according to claim 6 , wherein the concrete member is a shield segment.

  According to the present invention, the peripheral wall of the storage chamber of the female connecting member is divided into a plurality of portions in the circumferential direction from the tip portion to at least a part of the locking portion, whereby the male locking member is Thus, it is not necessary to divide into a plurality of hollow shapes, and can be formed into a round bar shape, so that the durability of the male locking member is improved and there is no possibility of breakage.

  In addition, the structure can be simplified, the number of components is reduced, and the manufacturing cost is lower than that of a conventional connector.

  Further, since the diameter expansion prevention means engages with the casing to prevent the diameter of the peripheral wall from expanding, even if a force in the pulling direction acts on the female connection member and the male connection member, the diameter expansion prevention means The diameter of the peripheral wall is prevented by the means, the engagement state of the locking portion of the female connecting member and the locking portion of the male locking member can be maintained, and the tensile strength can be increased.

In addition , when the female connecting member and the male connecting member are in the connected state, an elastic body is interposed between the casing and the diameter-expansion preventing means, so that the peripheral wall of the casing is aligned with the elastic body and the elastic member in the centering direction. Since it is biased, the meshing state of the locking portion of the female connecting member and the locking portion of the male locking member can be strengthened, and the tensile strength can be increased.

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

1 to 8 show a first embodiment.
1 to 3 show a female connecting member 1, and FIG. 4 shows a male connecting member 2.

  The female connecting member 1 has a casing 3, and the casing 3 is made of metal and is formed in a cylindrical shape, for example, a cylindrical shape as shown in FIGS. 1 to 3. In addition, you may form the cross-sectional shape of the casing 3 in arbitrary shapes, such as an ellipse and a rectangle, other than a circle. A storage chamber 4 is formed inside the front portion of the casing 3, and an insertion opening (opening) 5 is formed at the front end of the storage chamber 4, that is, the front end of the casing 3. ing. The tip side refers to the side on which the male connecting member 2 is inserted.

  The outer peripheral surface 3a of the front end portion of the casing 3 is formed as a tapered surface that increases in diameter from the front end side toward the back side.

  As shown in FIGS. 1 to 3, the inner peripheral surface 3 c of the front portion of the peripheral wall 3 b of the casing 3 that forms the outer peripheral portion of the storage chamber 4 has a locking ridge and a locking groove continuous in the axial direction. A stop portion (female screw) 6 is engraved in a spiral shape having the same diameter centered on the axis XX of the casing 3. Further, a non-locking portion 3 h having a larger diameter than the locking portion 6 is formed on the inner surface of the casing 3 in front of the locking portion 6.

  A split groove 3e that is substantially parallel to the axis XX of the casing 3 is formed at the tip of the peripheral wall 3b of the casing 3 from the tip 3d to a portion where at least a part of the locking portion 6 is located. As shown in FIGS. 2 and 3, a plurality of the divided grooves 3e are formed at a predetermined interval in the circumferential direction of the casing 3, thereby forming a divided piece 3f divided into a plurality of pieces in the circumferential direction. Has been. In the first embodiment, as shown in FIG. 1, a divided piece 3 f is formed from the tip 3 d of the casing 3 to the rear (back side) of the locking portion 6. That is, the locking part (female screw) 6 is divided into a plurality of parts in the circumferential direction. In the first embodiment, the number of divisions is 3, as shown in FIGS. 2 and 3, but the number of divisions may be two or more, and the number of divisions is arbitrarily set. Each divided piece 3f is formed integrally with the peripheral wall 3b of the casing 3 at the rear end thereof. By forming the divided pieces 3f as described above, each divided piece 3f expands and contracts elastically in the radial direction and has a restoring force from the expanded diameter state.

  On the outer surface of the peripheral wall 3b of the casing 3 including the divided piece 3f, an elastic member 8 is provided over the entire circumferential direction. The elastic member 8 is provided to protrude forward by a predetermined amount from the front end 3d of the casing 3, and is provided at least behind the divided piece 3f from the front end, that is, at least at the outer periphery of the divided piece 3f. The tip of the member 8 is formed with an opening.

  Examples of the elastic member 8 include resins such as rubber, polystyrene foam, and thermoplastic elastomer, urethane, and the like. In Example 1, rubber was used. The elastic member 8 is formed in an annular shape and is disposed in close contact with the outer peripheral surface of the peripheral wall 3b of the casing 3. Is the inner diameter of the elastic member 8 before use the same as the outer diameter of the peripheral wall 3b of the casing 3? It is formed slightly smaller.

  As shown in FIG. 3, a ring-shaped elastic body 10 is fitted and fixed to the front portion of the tapered outer peripheral surface 3 a that is the tip of the casing 3. In the first embodiment, as shown in FIG. 3, the elastic body 10 is provided in a ring shape over the entire circumference of the casing 3, but the elastic body 10 is divided into a plurality in the circumferential direction, The divided elastic bodies 10 may be provided at appropriate intervals in the circumferential direction. For example, one or a plurality of elastic bodies 10 may be provided on each of the plurality of divided pieces 3f. Examples of the elastic body 10 include resins such as rubber, foamed styrene, thermoplastic elastomer, urethane, and the like. In Example 1, rubber was used.

  Inside the elastic member 8, a diameter expansion preventing means 12 is provided in front of the casing 3 so as to be slidable in the axial direction with respect to the elastic member 8, and the female connecting member 1 and the male connecting member 2. In a non-connected state, the diameter expansion preventing means 12 is provided so as to protrude forward by a predetermined amount from the front end of the elastic member 8, as shown in FIG. The diameter-expansion preventing means 12 is made of metal, and its cross-sectional shape is formed in the same shape as the cross-sectional shape of the casing 3, and in the first embodiment, as shown in FIGS. It is formed in a shape, and both ends thereof are formed as openings.

  The inner diameter of the inlet portion 12 b of the diameter expansion preventing means 12 is set to be substantially the same as the inner diameter of the non-locking portion 3 h of the casing 3, and the outer diameter of the diameter expansion preventing means 12 is substantially equal to the outermost diameter of the casing 3. They are set the same.

  The pressing surface 12a behind the inlet portion 12b in the diameter expansion preventing means 12 is formed as a tapered surface that is reduced in diameter from the back side toward the inlet portion (opening side). The inclination angle of the outer peripheral surface 3 a at the tip of the casing 3 is set to be the same. The length L1 in the front-rear direction of the inlet portion 12b of the diameter expansion prevention means 12 is such that the female connection member 1 and the male connection member 2 are connected, and the front end of the diameter expansion prevention means 12 is a male connection described later. The pressing surface 12a of the diameter expansion preventing means 12 is set so as to be able to press the elastic body 10 in a state in which it is in contact with the distal end surface 22b of the connecting body 22 of the member 2.

  An anchor bar 14 that protrudes rearward from the casing 3 is fixed to the rear end portion of the casing 3, and a retaining portion 14 a is provided at the rear portion of the anchor bar 14.

  The female connecting member 1 is arranged so that one connecting member, for example, a concrete member 15 such as a concrete shield segment, has a distal end surface (opening surface) of the elastic member 8 flush with a joint surface 15 a of the concrete member 15. Concrete 15b is placed outside the anchor bar 14 and the elastic member 8 and a portion of the casing 3 where the elastic member 8 is not disposed on the outer peripheral portion. Thus, even if the concrete 15b is cast, the split piece 3f of the casing 3, that is, the locking portion 6 can be expanded in diameter by providing the elastic member 8. Further, as shown in FIG. 5, the tip end portion of the diameter expansion preventing means 12 protrudes from the joint surface 15 a of the concrete member 15. The connecting member such as the concrete member 15 includes the female connecting member 1.

  The tip surface of the elastic member 8 may not be flush with the joint surface 15a of the concrete member 15, and the tip surface of the elastic member 8 may be provided so as to protrude from the joint surface 15a of the concrete member 15. You may provide so that it may be located behind 15 joining surfaces 15a.

  By providing the elastic member 8 on the outer peripheral portion of the split piece 3f, when the concrete 15b is placed outside the female connecting member 1, the concrete enters the storage chamber 4 from the split groove 3e. Can be prevented.

Next, the male connection member 2 will be described.
As shown in FIG. 4, the male connecting member 2 includes a deformable member, for example, a cylindrical adjustment member 21 formed of an elastic body such as foamed polystyrene or rubber, resin, cardboard or the like, and a female screw 22a on the inner periphery. And a male screw body 23 a formed on the base side of the male locking member 23 is screwed to the front portion of the connecting body 22.

  The front end of the male locking member 23 protrudes from the front surface of the coupling body 22, and a locking portion (male screw) 23 b in which a locking mountain and a locking groove continue in the axial direction at the base of the protruding portion. Is provided, and a guide portion 24 is integrally formed at the tip of the locking portion 23b.

  The outer diameter of the male screw 23b forming the locking portion is set to be approximately equal to or slightly larger than the inner diameter of the storage chamber 4, that is, the inner diameter of the female screw 6, and the male screw 23b is set to the storage chamber 4 It is adapted to be screwed into a female screw 6 that forms a locking portion.

  As shown in FIG. 4, an anchor bar 30 is screwed and fixed to the rear portion of the connecting body 22. A retaining portion 30 a is provided at the rear end of the anchor bar 30. A space holding pipe 31 made of an elastic body such as rubber or metal is provided on the outer periphery of the anchor bar 30. The front end of the space holding pipe 31 is locked to the rear locking portion 21a of the adjusting member 21, and the rear end is made of rubber or the like provided on the retaining portion 30a of the anchor bar 30. The seat member 32 made of an elastic body is locked. A gap 33 is provided between the anchor bar 30 and the space holding pipe 31.

  The adjusting member 21 formed of an elastic body such as rubber may be extended along the outer surface of the anchor bar 30 without providing the gap 33.

  The adjustment member 21, anchor bar 30, and space holding pipe 31 are connected to the other connecting member, for example, a concrete member 35 such as a shield segment, and the front end surface 22 b of the connecting body 22 is flush with the joint surface 35 a of the concrete member 35. Concrete 35b is placed outside the adjusting member 21, the gap retaining pipe 31, and the retaining portion 30a. The connecting member such as the concrete member 35 includes the male connecting member 2.

  The front end surface 22b of the connection body 22 and the joint surface 35a of the concrete member 35 are not provided flush with each other, the front end surface 22b of the connection body 22 corresponds to the shape of the front end side surface of the casing 3, and concrete. In a state in which the members 15 and 35 are joined, the gap may be provided between the joint surfaces 15a and 35a of the concrete members 15 and 35 so as not to be generated or to be smaller than the joint surface 35a of the concrete member 35. Further, the concrete member 35 may be provided so as to be located behind the joint surface 35a.

  The male connecting member 2 is a male connecting member 2 centering on the retaining portion 30a of the anchor bar 30 by the interaction of the adjusting member 21 made of a deformable member, the gap 33, the gap holding pipe 31, and the seat member 32. Can be displaced in a direction orthogonal to the axis YY.

  Next, the connecting operation will be described based on an example in which the connecting members 1 and 2 constituting the connecting device of the present invention are applied to concrete members 15 and 35, for example, concrete shield segments.

  First, in a state where the axis XX of the female connecting member 1 and the axis YY of the male locking member 23 of the male connecting member 2 are positioned substantially coaxially, one concrete member 15 and the other The concrete member 35 is relatively brought close to each other, and the leading end of the male locking member 23 is inserted from the insertion port 5 of the female connecting member 1.

  As shown in FIG. 5, when the male locking member 23 enters the storage chamber 4 from the insertion port 5 in the female coupling member 1, a locking portion (male screw) 23 b in the male locking member 23 is The split portion 3f is engaged with the locking portion (female screw) 6 of the casing 3 to expand the diameter of the divided piece 3f against the elastic force of the elastic member 8, and is inserted over the thread of the female screw 6 of each divided piece 3f.

  Further, when the male locking member 23 is inserted into the storage chamber 4, the distal end surface 22 b of the connecting body 22 of the male connecting member 1 is brought into contact with the rear end of the diameter expansion preventing means 12 as shown in FIG. Touch.

  Further, when the male locking member 23 is inserted into the storage chamber 4, as shown in FIG. 7, the diameter expansion preventing means 12 is pushed by the distal end surface 22 b of the connecting body 22 of the male connecting member 1 to be elastic. The member 8 moves toward the back side of the member 8, and the pressing surface 12 a of the diameter expansion preventing means 12 comes into contact with the outer peripheral surface of the elastic body 10.

  Further, when the male locking member 23 is inserted into the storage chamber 4, the elastic body 10 is pressed and deformed by the pressing surface 12 a of the diameter expansion preventing means 12 as shown in FIG. 8, and the casing 3 in the female connecting member 1. The front end surface of one of the concrete members 15 and the front end surface 22b of the connecting body 22 in the male connecting member 2, that is, the connecting surface 35a of the other concrete member 35 are close to or in contact with each other. The insertion of the member 2 is stopped. In this stopped state, the split piece 3f is pushed back in the centripetal direction of the female connecting member 1 by the self-restoring force and the elastic force of the elastic member 8, and the inner diameter of the engaging portion (female screw) 6 is reduced. Then, the locking portion 6 of the female connecting member 1 meshes with the locking portion 23 b of the male locking member 23. As a result, the concrete members 15 and 35 are connected to each other.

  Further, as shown in FIG. 8, the front end portion of the casing 3 and the rear portion of the diameter expansion preventing means 12 are engaged, and the front portion of the diameter expansion preventing means 12 embeds the male connecting member 2. It contacts the front end surface 22b of the connecting body 22 in the male connecting member 2 that is a part of the concrete member 35 that has been made. Thereby, the movement to the axial direction and radial direction of the diameter expansion prevention means 12 and the casing 3 is suppressed, and the diameter expansion of the division piece 3f of the casing 3, ie, the surrounding wall 3b, is prevented.

  Next, the shaft cores of both connecting members 1 and 2 are displaced from each other, so that the shaft core XX of the female connecting member 1 and the shaft core YY of the male connecting member 2 are not concentric with each other. The case where the male locking member 23 is inserted from the insertion port 5 in the (mistake state) will be described.

  When the female coupling member 1 and the male coupling member 2 are coupled in this misplaced state, the male coupling member 2 is located on the side where the female coupling member 1 is located around the retaining portion 30a of the anchor bar 30. It is inserted in an inclined manner by rotating in the direction of. That is, the adjustment member 21 provided on the outer periphery of the male connecting member 2 is compressed in the pressurizing direction, the connecting body 22 is inclined, and the male locking member 23 can be inserted into the storage chamber 4. Even in the state, the female connecting member 1 and the male connecting member 2 can be connected.

  Next, the locking portion (female screw) 6 of the female connecting member 1 and the locking portion (male screw) 23b of the male locking member 23 will be described.

  The locking portion 23b of the male locking member 23 is formed so that the cross section in the axial direction YY has a shape in which isosceles triangles or inequilateral triangles are continuous.

  The locking portion 6 of the female connecting member 1 is formed such that the cross section in the axial direction XX of the casing 3 is a shape in which isosceles triangles or inequilateral triangles meshing with the locking portion 23b are continuous. Has been.

  Further, the locking threads (threads) of the locking parts 23b and 6 and the locking groove (valley part) formed by these are the axis YY of the male locking member 23 or the axis of the casing 3. The locking portion 23b is formed to have the same outer diameter with the shaft core Y-Y as the center, and the locking portion 6 is formed of the shaft core X-. All the innermost diameters centered on X are formed to have the same diameter.

  Further, the interval (pitch) between the locking threads of the female screw 6 that is the locking portion of the female connecting member 1 and the male screw 23b that is the locking portion of the male locking member 23 is formed as desired. The pitch may be a pitch with respect to the nominal diameter of the fine thread defined in JIS, or may be smaller than the pitch with respect to the nominal diameter of the fine thread defined in JIS.

  As an example, when the nominal diameter is M24 (mm), the JIS B 0207 metric fine thread forms a pitch of 2 mm, 1.5 mm, or 1 mm. Set to 0.8 mm, preferably 0.5 mm. Further, when the nominal diameter is M30 (mm), the pitch is set to 0.3 mm to 0.8 mm, preferably 0.5 mm.

  Since the female connecting member 1 and the male connecting member 2 have the above-described structure, the following operations and effects are achieved.

  The peripheral wall 3b of the casing 3 of the female connecting member 1 is divided into a plurality of portions from the tip to a portion where at least a part of the engaging portion 6 is located, so that the male engaging member 23 is made of the prior art. Thus, it can be formed into a solid round bar shape without being divided into a plurality of hollow shapes, the durability of the male locking member 23 is improved, and there is no risk of breakage.

  In addition, the structure can be simplified, the number of components is reduced, and the manufacturing cost is lower than that of the conventional connector.

  Further, when the female connecting member 1 and the male connecting member 2 are connected, the rear portion of the diameter expansion preventing means 12 is engaged with the outer periphery of the front end portion of the casing 3, thereby increasing the diameter of the peripheral wall 3 b of the casing 3. In order to prevent this, even if the female connecting member 1 and the male connecting member 2 are subjected to a force in the removal direction, the diameter expansion preventing means 12 prevents the peripheral wall 3b from expanding, and the female connecting member 1 The engagement state between the engagement portion 6 and the engagement portion 23b of the male engagement member 23 can be maintained, and the tensile strength can be increased.

  Further, when the female connecting member 1 and the male connecting member 2 are connected, the elastic body 10 is interposed between the casing 3 and the diameter expansion preventing means 12, so that the elastic member 8 and the elastic body 10 allow the casing 3. Since the peripheral wall 3b is urged in the centripetal direction, the engagement state between the engaging portion 6 of the female connecting member 1 and the engaging portion 23b of the male engaging member 23 can be strengthened, and the tension can be increased. Strength can be increased.

  In the first embodiment, the locking groove of the locking portion 23b of the male locking member 23 and the locking groove of the locking portion 6 of the female connecting member 1 are formed in a spiral shape. The locking groove of the locking part 23b of the member 23 and the locking groove of the locking part 6 of the female connecting member 1 are formed in an annular non-inclined groove perpendicular to the axis YY, XX. In addition, the plurality of grooves may be parallel. That is, the engaging crest of the engaging portion 23b of the male locking member 23 is formed in an annular shape orthogonal to the axis XX of the male locking member 23, and the engagement of the female connecting member 1 is determined. It is good also as a parallel groove | channel which formed the latching peak of the stop part 6 in the cyclic | annular part orthogonal to the axial center YY of the said female type | mold connection member 1, and made the several groove | channel parallel.

  Also in this parallel groove, the shape of the locking ridges of the female connecting member 1 and the male locking member 23 is an isosceles triangle or an unequal triangular shape similar to the locking ridge (thread) of the first embodiment. Is formed. Further, the dimension of the interval (pitch) between the locking peaks is set to a value corresponding to the dimension of the pitch shown in the first embodiment.

  Since other members have the same structure as that of the first embodiment, the description thereof is omitted.

  Also in the second embodiment, the same operations and effects as the first embodiment are achieved.

  In the first or second embodiment, the elastic body 10 is provided on the outer peripheral surface 3 a of the tip portion of the casing 3, but may be provided on the pressing surface 12 a of the diameter expansion preventing means 12.

  Other members have the same structure as that of the first or second embodiment, and thus the description thereof is omitted.

  Also in the third embodiment, the same operations and effects as in the first or second embodiment are achieved.

FIG. 9 shows a fourth embodiment.
In the first to third embodiments, the elastic body 10 is provided. However, as shown in FIG. 9, the elastic body 10 is not provided, and the female connection member 41 and the male connection member 42 are connected. The outer peripheral surface 3a of the tip of the casing 3 is engaged with the pressing surface 43a of the diameter expansion preventing means 43, and the tip of the diameter expansion preventing means 43 is a part of the concrete member 35 in which the male connecting member 42 is embedded. You may make it contact | abut with the front end surface 22b of the connection body 22 in a certain male type | mold connection member 42. FIG.

  Further, the outer peripheral surface 3a of the front end portion of the casing 3 is formed in a tapered surface that increases in diameter from the front end side toward the back side as in the first to third embodiments. As in the first to third embodiments, the pressing surface 43a is formed in a tapered surface that is reduced in diameter from the back side toward the opening side.

  Since the other members have the same structure as in the first to third embodiments, description thereof is omitted.

  Also in the fourth embodiment, the same operations and effects as the first to third embodiments are achieved.

FIG. 10 shows a fifth embodiment.
In the fourth embodiment, the outer peripheral surface 3a of the front end portion of the casing 3 is formed into a tapered surface that increases in diameter from the front end side toward the back side, and the pressing surface 43a of the diameter expansion preventing means 43 is As shown in FIG. 10, the taper surface is formed on the outer peripheral surface 3 a of the front end portion of the casing 3 and the pressing surface 43 a of the diameter expansion preventing means 43. A spiral groove centered on the center XX or an annular shape orthogonal to the axis XX, and a plurality of grooves are engraved in parallel (hereinafter referred to as parallel grooves), and both surfaces are mutually You may form in the shape which can mesh | engage.

  The other members have the same structure as in the first to fourth embodiments, and thus the description thereof is omitted.

  Also in the fifth embodiment, the same operations and effects as the first to fourth embodiments are achieved.

FIG. 11 shows a sixth embodiment.
In the fifth embodiment, the spiral groove or the parallel groove is formed on both the outer peripheral surface 3a of the front end portion of the casing 3 and the pressing surface 43a of the diameter expansion preventing means 43. A harder material may be used, and as shown in FIG. 11, a spiral groove or a parallel groove centered on the axis XX may be formed only on the outer peripheral surface 3a of the tip portion of the casing 3, A material harder than the casing 3 may be used for the diameter expansion prevention means 43, and a spiral groove or a parallel groove centered on the axis XX may be formed only on the pressing surface 43 a of the diameter expansion prevention means 43.

  Since the other members have the same structure as in the first to fifth embodiments, the description thereof is omitted.

Also in the sixth embodiment, the same operations and effects as the first to fifth embodiments are achieved.
Further, in the sixth embodiment, the spiral groove or the parallel groove formed in the hard material bites into the soft material, and the outer peripheral surface 3a of the tip portion of the casing 3 and the pressing surface 43a of the diameter expansion preventing means 43 are strengthened. The diameter of the peripheral wall 3b of the casing 3 can be further prevented.

FIG. 12 shows a seventh embodiment.
In the first to sixth embodiments, the locking portion 23b of the male locking member 23 has the same outermost diameter centered on the axis YY, and the locking portion 6 of the casing 3 has the axial center. Although the innermost diameters centered on XX are all the same, as shown in FIG. 12, the axial center YY of the locking part 52b of the male locking member 52 of the male coupling member 51 is centered. The outermost diameter is formed into a taper shape that gradually increases in diameter from the tip portion toward the back portion, and the outermost inner diameter centering on the axis XX of the locking portion 54 of the female connecting member 53 is the tip portion. You may form so that it may gradually reduce in diameter along the taper of the said latching | locking part 52b toward a back | inner part.

  Since the other members have the same structure as in the first to fifth embodiments, the description thereof is omitted.

Also in the seventh embodiment, the same operations and effects as the first to sixth embodiments are achieved.
In the seventh embodiment, the outermost diameter centered on the axis YY of the locking portion 52b is formed so that the diameter gradually increases from the tip portion toward the back portion. The inner diameter centered on the core XX is formed so that the inner diameter gradually decreases from the front end to the back, so that the male locking member 52 can be inserted into the storage chamber 4 in the above embodiment. This can be done with an insertion force smaller than 1-6.

FIG. 13 shows an eighth embodiment.
In the first to sixth embodiments, the locking portion 23b of the male locking member 23 has the same outermost diameter centered on the axis YY, and the locking portion 6 of the casing 3 has the axial center. Although the innermost diameters centered on XX are all the same, as shown in FIG. 13, the axial center YY of the locking part 62b of the male locking member 62 of the male connecting member 61 is centered. The outermost diameter is formed in a taper shape that gradually decreases from the distal end portion toward the inner portion, and the outermost inner diameter centered on the axis XX of the locking portion 64 of the female connecting member 63 is the distal end portion. You may form so that it may gradually expand in diameter along the taper of the said latching | locking part 62b toward a back | inner part.

  Since the other members have the same structure as in the first to fifth embodiments, the description thereof is omitted.

Also in the eighth embodiment, the same operations and effects as the first to sixth embodiments are achieved.
In the eighth embodiment, the outermost diameter centered on the axis Y-Y of the locking portion 62b is formed so that the diameter gradually decreases from the tip portion toward the back portion. After the female connecting member 63 and the male connecting member 61 are connected by forming the innermost diameter centered on the core XX so that the inner diameter gradually increases from the tip toward the back, Compared with the couplers of Examples 1 to 7, it is difficult to come off.

FIG. 14 shows an example in which the ninth embodiment is applied to the first embodiment.
In the ninth embodiment, as shown in FIG. 14, a guide recess 4 c is formed at the bottom of the inner portion of the storage chamber 4 in the first embodiment, and the locking portion of the male locking member 23 in the first embodiment. A tapered tapered portion 23c is integrally formed at the tip portion of 23b, and a guide convex portion 40 having a smaller diameter than the locking portion 23b is integrally formed at the tip portion.

  When the male connecting member 2 and the female connecting member 1 are connected, the guide convex portion 40 of the male locking member 23 is inserted into the guide concave portion 4c.

  The other members have the same structure as in the first to eighth embodiments, and thus the description thereof is omitted.

Also, in the ninth embodiment, the same operations and effects as the first to eighth embodiments are achieved.
In the ninth embodiment, when the male connecting member 2 and the female connecting member 1 are connected, the guide convex portion 40 of the male locking member 23 is inserted into the guide concave portion 4c. Since the axis YY of the locking member 23 can be brought close to the axis XX of the locking part 6 of the casing 3, the locking part 23 b and the locking part 6 are meshed in a nearly uniform state. The engagement state between the engaging portion 6 of the female connecting member 1 and the engaging portion 23b of the male engaging member 23 can be strengthened, and the tensile strength can be increased.

The longitudinal cross-sectional view of the female type | mold connection member in Example 1 of this invention. AA sectional view taken on the line AA of FIG. FIG. 3 is a sectional view taken along line BB in FIG. 1. The longitudinal cross-sectional view of the male locking member in Example 1 of this invention. The partial expanded longitudinal cross-sectional view of the state which inserted the male locking member in Example 1 of this invention in the storage chamber. FIG. 6 is a partially enlarged longitudinal sectional view showing a state where a male locking member is further inserted into the storage chamber from the state of FIG. 5. FIG. 7 is a partially enlarged longitudinal sectional view showing a state in which a male locking member is further inserted into the storage chamber from the state of FIG. 6. FIG. 8 is a partially enlarged longitudinal sectional view showing a state in which the male locking member is further inserted into the storage chamber from the state of FIG. 7 and the male connecting member and the female connecting member are connected. The partial expanded longitudinal cross-sectional view of the state which connected the male type | mold connection member and the female type | mold connection member in Example 4 of this invention. The partial expansion longitudinal cross-sectional view of the state which connected the male type | mold connection member and the female type | mold connection member in Example 5 of this invention. The partial expansion longitudinal cross-sectional view of the state which connected the male type | mold connection member and the female type | mold connection member in Example 6 of this invention. The partial expansion longitudinal cross-sectional view of the state which connected the male type | mold connection member and the female type | mold connection member in Example 7 of this invention. The partial expansion longitudinal cross-sectional view of the state which connected the male type | mold connection member and the female type | mold connection member in Example 8 of this invention. The partial expanded longitudinal cross-sectional view which showed the connection state of the male type | mold connection member and the female type | mold connection member in Example 9 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 41, 53, 63 Female type | mold connection member 2, 42, 51, 61 Male type | mold connection member 3 Casing 3b Perimeter wall 3e Dividing groove 4 Storage chamber 5 Opening part 6, 54, 64 Locking part of a female type | mold connection member 8 Elasticity Member 10 Elastic body 12, 43 Diameter expansion preventing means 23, 52, 62 Male locking member 23b, 52b, 62b Locking portion of female connecting member

Claims (7)

A casing having a storage chamber that is open at the front and a peripheral wall provided on an outer peripheral portion of the storage chamber, and a locking mountain and a locking groove in the axial direction of the female connecting member on the inner peripheral surface of the peripheral wall; Is provided with a dividing groove that divides the peripheral wall into at least a part of the engaging part in the circumferential direction, and at least from the front end of the peripheral wall to the rear of the dividing groove. And a female connecting member provided with an elastic member on the entire circumference of the peripheral wall and provided with a diameter expansion preventing means,
A connector comprising a male coupling member having a male locking member in which a locking portion in which a locking mountain and a locking groove are continuous in the axial direction of the male coupling member is engraved at the tip. And
By inserting the male locking member into the storage chamber of the female connecting member, the diameter of the front portion of the peripheral wall is increased, and then the diameter is reduced, and the locking portion of the female connecting member and the male The locking portion of the mold locking member meshes, and the diameter expansion preventing means prevents the diameter of the peripheral wall from expanding by engaging with the casing ,
When the casing and the diameter expansion preventing means are engaged, an elastic body is interposed between the casing and the diameter expansion preventing means . In the state where the female connecting member and the male connecting member are coupled,
The rear portion of the diameter-expansion preventing means is engaged with the tip portion of the casing, and the tip portion of the diameter-expansion preventing means is in contact with a connecting member in which the male connecting member is embedded. The connector according to 1. The outer peripheral surface of the front end portion of the casing is formed in a taper shape that increases in diameter from the front end side toward the back side, and the inner peripheral surface of the rear end portion of the diameter expansion preventing means extends from the back side to the opening side. It is formed in a tapered shape that decreases in diameter,
The connecting tool according to claim 1 or 2, wherein in a state where the female connecting member and the male connecting member are coupled, a front end portion of the casing and a rear portion of the diameter expansion preventing means are engaged. The locking crest of the locking portion of the male locking member is formed in a spiral shape, and the locking crest of the locking portion of the female connection member is formed by a part of the spiral. 4. The connector according to any one of items 1 to 3 . A locking mountain of the locking portion of the male locking member is formed in an annular shape perpendicular to the axis of the male locking member,
The latching ridges of the locking portion of the female coupling member, any one of claims 1 to 3, characterized in that formed in part of a cyclic orthogonal to the axis of the female coupling member consolidated instrument according to. Coupling according to any one of claims 1 to 5, characterized in that the female coupling member and the male coupling member, and fixed to the concrete member. The connector according to claim 6 , wherein the concrete member is a shield segment.

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