JP6370721B2 - CONNECTING DEVICE AND CONCRETE MEMBER CONNECTING DEVICE USING THE SAME - Google Patents

Description

  The present invention relates to a connector and a connecting device for a concrete member using the same.

  Conventionally, as shown in FIG. 14 as a connecting tool for connecting members together, a tapered hole 101 is formed inside, and a sliding guide protrusion along the axial direction is divided in the circumferential direction on the inner surface of the tapered hole 101. A plurality of casings 103, a female locking member (wedge nut) 105 having an outer surface formed on a tapered surface 102 along the tapered hole 101 and an inner thread 104 formed on the inner surface, and a compression spring that presses the wedge nut 105 106, and a male coupling member 110 having a male locking member 109 with a male locking member 109 engraved with a male screw 108 engaged with the female screw 104 of the wedge nut 105 at the tip. Are known.

  When the connecting tool is connected, the male locking member 109 is inserted into the female connecting member 107 without rotating the female connecting member 107, so that the female screw 104 of the divided wedge nut 105 is inserted. The wedge nut 105 engages with the male screw 108 of the male locking member 109 and is pushed to the large diameter side against the compression spring 106, and the inner diameter of the female screw hole formed by the plurality of wedge nuts 105 is increased. Then, the male locking member 109 can be inserted to a predetermined position of the female coupling member 107, and when the insertion is completed, the female screw 104 of the wedge nut 105 is moved by the urging force of the compression spring 106 to the male screw 108 of the male locking member 109. The female connecting member 107 and the male connecting member 108 are connected to each other (see, for example, Patent Document 1).

JP 2006-145023 A

  By the way, if dust or the like is attached to the female screw 104 of the wedge nut 105 or the male screw 108 of the male locking member 109, a force in the pulling direction is applied to the male locking member 109 before the female screw 104 and the male screw 108 are engaged with each other. When this occurs, the male locking member 109 may come off and the connection between the two connecting members 107 and 110 may be released.

  Therefore, an object of the present invention is to provide a coupler that solves the above-described problems and a coupling device for a concrete member using the coupler.

In order to solve the above-mentioned problem, the invention according to claim 1 is provided with a storage chamber having a distal end opened in a female connecting member, and a locking portion comprising a locking mountain continuous on the inner surface side in the storage chamber. While providing a female locking member engraved with
At the tip of the male connecting member, a male locking member is provided with a locking portion made of a continuous locking mountain,
By inserting the male locking member between the female locking members, the locking hole formed by the female locking member is expanded and then the locking hole is reduced in diameter. A coupling tool in which the locking portion of the locking member and the locking portion of the male locking member are engaged with each other,
Provided on the back side of the female locking member is an engaging member that is movable in the axial direction of the female coupling member and changes in inner diameter;
An engagement groove in which the engagement member can be engaged is provided at the tip of the male locking member,
The coupling tool is characterized in that the engaging member engages with an engaging groove when the female connecting member and the male connecting member are connected.

According to a second aspect of the present invention, there is provided a female locking device in which a storage chamber having an open front end portion is provided in the female connecting member, and a locking portion made of a locking mountain continuous on the inner surface side is provided in the storage chamber. While providing members,
At the tip of the male connecting member, a male locking member is provided with a locking portion made of a continuous locking mountain,
By inserting the male locking member between the female locking members, the locking hole formed by the female locking member is expanded and then the locking hole is reduced in diameter. A coupling tool in which the locking portion of the locking member and the locking portion of the male locking member are engaged with each other,
Provided on the back side of the female locking member is an engaging member that is movable in the axial direction of the female coupling member and changes in inner diameter;
An inner peripheral portion of the engaging member is in contact with the outer peripheral surface of the male locking member when the male locking member and the female locking member are connected.

  According to a third aspect of the present invention, in the connector according to the first or second aspect, a biasing means for biasing the female locking member toward the distal end side is provided, and the engaging member is connected to the female locking member. It is provided between the urging means.

Invention of Claim 4 uses the coupling tool of any one of the said Claim 1 thru | or 3,
The female-type connecting member is fixed to one concrete member to be connected, and the male-type connecting member is fixed to the other concrete member to be connected.

  According to a fifth aspect of the present invention, in the connecting device for a concrete member according to the fourth aspect, the concrete member is a shield segment.

  According to the present invention, an engagement member is provided on the back side of the female locking member, and an engagement groove in which the engagement member can be engaged is provided at a front portion of the male locking member. When the connecting member is connected, the engaging member is engaged with the engaging groove, or the inner peripheral portion of the engaging member is connected to the male engaging member when the male engaging member is connected to the female engaging member. Since the locking portion of the female locking member and the locking portion of the male locking member are not meshed with each other, the engagement member and the male locking member are brought into pressure contact with the outer peripheral surface of the locking member. When the stop member is engaged, when the male connecting member moves in the pulling direction, the engaging member moves together with the male connecting member to the distal end side (opening side of the storage chamber). The locking member moves to the opening side of the storage chamber, the diameter of the locking hole is reduced, the locking portion of the female locking member and the locking portion of the male locking member mesh, Link It can be suppressed that the connected state of the goods between is released.

The fragmentary sectional view which made the half surface of the female type | mold connection member which concerns on Example 1 of this invention the cross section. The fragmentary sectional view which made the half surface of the male connection member which concerns on Example 1 of this invention the cross section. The fragmentary sectional view which made the cross section the half surface which shows the connection state of the female type | mold connection member and male type | mold connection member in Example 1 of this invention. The AA line expanded sectional view of FIG. The other example of the sectional view on the AA line of FIG. The figure which shows an example of the engaging member used for Example 1 of this invention. The figure which shows the other example of the engaging member used for Example 1 of this invention. The other example of the engaging member used for Example 1 of this invention is shown, (a) is a front view, (b) is a side view. The figure which shows the other example of the engaging member used for Example 1 of this invention. The figure which shows the other example of the engaging member used for Example 1 of this invention. The figure which shows the other example of the engaging member used for Example 1 of this invention. The fragmentary sectional view which made the half surface of the female type | mold coupling member which concerns on Example 2 of this invention the cross section. The fragmentary sectional view which made the half surface of the female type | mold coupling member which concerns on Example 3 of this invention the cross section. The sectional side view which shows the conventional connector.

A mode for carrying out the invention will be described based on the embodiment shown in FIGS.
[Example 1]
1 to 11 show a first embodiment of the present invention.

  FIG. 1 is a partial cross-sectional view in which a half surface of the female connection member 1 of the first embodiment is taken as a cross section, and FIG. 2 is a view in which a half surface of a male connection member 2 connected to the female connection member 1 is a cross-section. A sectional view is shown.

  The female connecting member 1 has a casing 3, and the casing 3 is formed in a cylindrical shape, for example, a cylindrical shape, and a storage chamber 4 is formed therein. The front portion of the storage chamber 4 is formed in a conical tapered hole 5 having a taper surface whose inner diameter gradually increases from the front end portion 4a side to the rear (back), and the storage chamber 4 has a tapered surface. The intermediate part is formed in the biasing means storage part 6. A female screw 3 a is engraved on the inner peripheral surface of the rear portion of the casing 3.

  An insertion portion 7 is formed at the tip of the storage chamber 4, the distal end portion of the insertion portion 7 is opened, and a female screw 7 a is engraved on the inner peripheral wall thereof.

  In the taper hole 5, a plurality of sliding guide ridges 11 along the axis XX direction of the casing 3 are divided in the circumferential direction as shown in FIG. Further, in the tapered hole 5, as shown in FIG. 4, a wedge-shaped female locking member 12 that is divided into a plurality in the circumferential direction is provided between the sliding guide protrusions 11, and the axis X− of the casing 3. It is arranged to be slidable in the X direction. Hereinafter, the female locking member 12 is also referred to as a wedge nut 12. The sliding guide protrusion 11 may not be provided.

  Further, the outer surface of the wedge-shaped female locking member 12 is formed into a tapered surface 12a along the tapered surface of the tapered hole 5, that is, the outer diameter gradually increases from the tip 4a side to the rear. Furthermore, on the inner peripheral surface of each female locking member 12, a locking portion 12b made up of a locking mountain and a locking groove is a part of a spiral centering on the axis XX of the casing 3, and Are engraved in a direction along the axis X-X. As long as the helical locking portion 12b is formed in a spiral shape, a thread having an arbitrary shape can be used as its cross-sectional shape, and its axial cross-section is an unequal triangular shape, an isosceles triangular shape, A shape such as a right triangle can be used. In addition, the latching | locking part 12b does not form the latching peak and the latching groove in a spiral shape, but the latching peak and the latching groove formed in an annular shape centering on the axis XX are axial directions. May be formed side by side.

  As described above, the plurality of wedge nuts 12 form the locking holes 12c as shown in FIG. 4, and when the respective wedge nuts 12 retreat along the tapered surface, the diameter of the locking holes 12c is increased. The locking hole 12c is reduced in diameter by moving forward.

In this embodiment, the number of wedge nuts 12 is three as shown in FIG. 4. However, one or a plurality of wedge nuts 12 may be arbitrarily set as shown in FIG. In addition, a part of adjacent wedge nuts 12 are connected to each other to be integrally formed, and a part of the wedge nuts 12 can be connected to each other in the front-rear direction. The diameter of the locking hole 12c may be increased when the diameter of the locking hole 12c is reduced and moved rearward. Further, when the female connecting member 1 is manufactured, a part of the adjacent wedge nuts 12 are mutually connected and formed integrally, and a male locking member 23 described later is inserted into the locking hole 12c. At this time, the wedge nut 12 may be separated into a plurality.

  An urging means receiver (spring receiver) 13 that is engaged with each wedge nut 12 in common is disposed at the rear end of the wedge nut 12. The number of the biasing means receivers 13 may be one or more.

  A cover plate 14 having a screw hole 14a formed at the center is screwed to the female screw 3a at the rear of the casing 3. On the rear side of the urging means receiver 13 in the urging means accommodating portion 6, an engaging member 16 that is movable in the direction of the axis XX is provided.

  A biasing means 15 is provided between the engaging member 16 and the cover plate 14. The biasing means 15 is formed of an elastic member such as a coil spring, rubber, resin, or urethane. In the first embodiment, it is housed in a compressed state using a coil spring. Due to the urging force of the urging means 15, each wedge nut 12 is always urged toward the distal end portion 4 a via the engaging member 16 and the urging means receiver 13.

  The engaging member 16 has a hole or arcuate cutout 16a on the inner side. When a male locking member 23 described later is press-fitted into the hole or cutout 16a, the engagement member 16 is engaged by the pressure. The diameter of the hole or notch 16a in the member 16 can be increased, and when the diameter is increased, a restoring force is generated in the direction in which the diameter of the hole or notch 16a is reduced. Further, the engaging member 16 is set to a size that can contact the biasing means receiver 13.

  Although the thing of arbitrary shapes can be used as the engaging member 16, For example, what is shown in FIGS. 6-11 can be used. A retaining ring 16A shown in FIG. 6 has a C-shaped notch 16a formed at the center. Further, the retaining ring 16B shown in FIG. 7 is formed in an E shape having a substantially semicircular notch 16a formed at the center and three claw portions 16b projecting from the notch 16a. . Further, the push nut 16C, the speed nut 16D, and the retaining ring 16E shown in FIGS. 8 to 10 are annular, and a hole 16a is formed at the center, and a plurality of claw portions 16c that protrude into the hole 16a and are inclined rearward are formed. It is what you have. Further, the engaging member 16F shown in FIG. 11 is integrally formed by bending a spring material whose cross section is formed in a quadrangle or the like, and is connected to the base portion 17a and the end portion of the base portion 17a and is engaged with the engaging groove. 25 is a quick fastener-like shape composed of a pair of arc-shaped engaging portions 17b that engage with 25, and a pair of diameter-expanding portions 17c that expand from the ends of the engaging portions 17b outward. A notch 16a is formed between the engaging portions 17b and 17b.

  Note that the biasing means receiver 13 may not be provided, and the engaging member 16 may contact the wedge nut 12 and also serve as the biasing means receiver 13.

  An anchor bar 18 that protrudes rearward from the lid body 14 is screwed and fixed to the lid body 14. On the rear side of the anchor bar 18, a retaining portion 18a is provided so as to protrude to the outer peripheral side.

  The female connecting member 1 described above is embedded in a shield segment, which is a component to be connected, for example, a concrete member, so that the surface 3c on the tip 4a side of the casing 3 is flush with the joint surface of the shield segment. It is fixed.

  Next, the male connection member 2 will be described.

  The male connecting member 2 includes a deformable member, for example, an adjustment member 21 formed of an elastic material such as foamed polystyrene or rubber, resin, or cardboard. The adjusting member 21 has an inner peripheral surface and an outer peripheral surface formed in a circular cylindrical shape, and a connecting body 22 having an outer surface formed in a circular shape is provided in the adjusting member 21. The coupling body 22 is made of metal, has a hollow portion 22a that is open at both ends (front and rear ends) in the axial direction, and has an internal thread 22b on the inner peripheral surface. In addition, the outer peripheral surface of the adjustment member 21 can be formed in an arbitrary shape such as a polygon such as a quadrangle or a hexagon other than a circle.

  As shown in FIG. 2, a male screw body 23a having a male locking member 23c formed on the outer periphery thereof is screwed to the front end of the female screw 22b of the connecting body 22 as shown in FIG. ing.

  The male locking member 23 protrudes from the tip of the coupling body 22, and a dome-shaped guide portion 24 whose diameter is reduced at the tip is formed at the tip (front side). That is, a curved surface that pushes and moves the female locking member 12 is formed at the front portion, and the rear portion and the front portion that protrudes from the coupling body 22 are engaged with the locking portion 12 b of the wedge nut 12. A portion 23b is formed. In the present embodiment, as the locking portion 23b of the male locking member 23, one in which a locking portion 23b made of a spiral locking mountain and a locking groove is engraved is used.

  In addition, the thing of arbitrary shapes can be used for the latching | locking part 23b of the male type | mold latching member 23 if it is a shape corresponding to the latching | locking part 12b of the wedge nut 12, For example, a shaft YY direction cross section Is formed into an unequal triangular shape, an isosceles triangular shape, a right triangular shape, etc., and is formed in a spiral shape, or is formed in an annular shape centering on the axis Y-Y. What formed the stop groove in parallel with an axial direction can be used.

  The male locking member 23 is formed between the guide portion 24 and the locking portion 23b, and an engaging groove 25 is formed in which the hole of the engaging member 16 or the periphery of the notch 16a can be fitted and engaged. ing. When both the connecting members 1 and 2 are not connected, the inner diameter of the hole or notch 16 a in the engaging member 16 is set to be the same as or smaller than the outer diameter at the bottom of the engaging groove 25. The width of the engagement groove 25 in the axis YY direction is set to be a predetermined amount larger than the thickness (width) of the engagement member 16 in the axis XX direction, and the width is equal to the pitch P of the locking portion 23. It can be arbitrarily set according to the thickness (width) of the engaging member 16 in the axis XX direction.

  As shown in FIG. 2, an anchor bar 30 is screwed and fixed to the rear portion of the coupling 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 material 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 engaged with the rear engaging portion 21 a of the adjusting member 21, and the rear end is elastic such as rubber provided on the retaining portion 30 a of the anchor bar 30. The seat member 32 made of a material is locked. A gap 33 is provided between the anchor bar 30 and the space holding pipe 31.

  Note that an elastic material such as rubber may be provided on the entire outer periphery of the portion corresponding to the space holding pipe 31 in the anchor bar 30 without providing the space holding pipe 31 and the gap 33. For example, the adjustment member 21 may be formed to extend to the vicinity of the retaining portion 30a.

  The adjustment member 21, the anchor bar 30, and the space holding pipe 31 are arranged such that the front end face 22d of the connecting body 22 is flush with the joint surface of the shield segment in the other connected part, for example, a shield segment that is a concrete member. The concrete is placed outside the adjusting member 21, the gap holding pipe 31, and the retaining portion 30a.

  Further, a sealing material protrudes from the joint surface in one shield segment, and a sealing material projects from the joint surface in the other shield segment.

  The male connecting member 2 provided in the other connecting part is provided with a retaining portion 30a of the anchor bar 30 by the interaction of the adjusting member 21, which is a deformable member, the gap 33, the gap holding pipe 31, and the seat member 32. , And can be displaced in a direction orthogonal to the axis YY.

  The spacing (pitch) between the locking portions 12b of the wedge nut 12 and the locking portion 23b of the male locking member 23 is formed as desired, and is the nominal diameter of the fine screw defined in JIS. The screw pitch may be smaller than the screw pitch with respect to the nominal diameter of the fine screw specified in JIS.

  In this embodiment, for example, when the nominal diameter is M30 (mm), the pitch is set to 0.3 mm to 0.8 mm, desirably 0.5 mm.

  Next, a connection operation will be described based on an example in which the present invention is applied to a shield segment.

  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 shield segment and the other The shield segments are relatively close to each other, and the male locking member 23 is inserted from the opening of the insertion portion 7 of the female locking member 1.

  When the male locking member 23 is inserted from the insertion portion 7 in the female connecting member 1, the male locking member 23 retracts each wedge nut 12 toward the back against the biasing force of the biasing means 15, The diameter of the locking hole 12c formed by each wedge nut 12 is expanded, and the vehicle enters while climbing over the locking mountain of each wedge nut 12. At the same time, the diameter of the hole or notch 16a of the engaging member 16 is expanded, and the male locking member 23 is inserted into the hole or notch 16a.

  The front end surface of the casing 3 in the female connection member 1, that is, the joint surface of one shield segment, and the front end surface of the connection body 22 in the male connection member 2, that is, the joint surface of the other shield segment are in contact with each other. When the insertion of the member 2 is stopped, each wedge nut 12, the urging means receiver 13, and the engaging member 16 are pushed back to the distal end portion 4 a side by the urging force of the urging means 15.

  Thereby, the engaging member 16 is fitted and engaged with the engaging groove 25 by its restoring force, and then the locking portion 12b of each wedge nut 12 meshes with the locking portion 23b of the male locking member 23, The shield segments can be connected to each other.

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

  The engaging member 16 is provided between the wedge nut 12 and the urging means 15, and the width of the engaging groove 25 formed in the male locking member 23 is made larger than the thickness of the engaging member 16 by a predetermined amount. When the male locking member 23 is inserted to a predetermined position in the storage chamber 4, the locking portion 12 b of each wedge nut 12 meshes with the locking portion 23 b of the male locking member 23 due to adhesion of dust or the like. Even if not, the engaging member 16 and the engaging groove 25 can be engaged.

  Even if the engaging portion 12b of each wedge nut 12 is not engaged with the engaging portion 23b of the male locking member 23, the male connecting member can be used as long as the engaging member 16 and the engaging groove 25 are engaged. When 2 is moved in the pulling direction, the engaging member 16 moves to the distal end portion 4a side together with the male locking member 23, and the wedge nut 12 moves to the distal end portion 4a side by being pushed by the engaging member 16. The locking hole 12c is reduced in diameter, the locking portion 12b of the wedge nut 12 is engaged with the locking portion 23b of the male locking member 23, and the connected state of the connecting parts such as the shield segment is released. This can be suppressed.

  Further, even when the axis XX of the female connection member 1 and the axis YY of the male locking member 23 are in a non-concentric state (mismatched state), the male connection The member 2 is a shaft of the male locking member 23 centered 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. The core can be displaced in a direction perpendicular to the axis YY of the male connecting member 2, and the male locking member 23 can be inserted into the locking hole 12 c of the female connecting member 1.

  As a result, even if a large external force acts in the direction to separate the shield segments after they are connected, the opening between the shield segments can be minimized, preventing leakage from between the shield segments. it can. Further, since the opening can be reduced, the sealing material provided between the shield segments can be reduced, and the manufacturing cost can be reduced.

  In the first embodiment, the female connecting member 1 is embedded so that the surface 3c on the tip end 4a side is flush with the joint surface of the shield segment, and the male connecting member 2 is connected. The front end surface 22d of the body 22 is embedded so as to be flush with the joint surface of the shield segment, but either the surface 3c on the front end 4a side or the front end surface 22b is protruded from the joint surface, and the other is the front side. It may be buried so as to open.

[Example 2]
In the first embodiment, the engaging member 16 is configured separately from the urging means 15, but as shown in FIG. 12, an engaging member 35 that integrates the engaging member and the urging member may be used. Good.

  As the engaging member 35, for example, the diameter side of the coil spring is reduced to form a reduced diameter portion 35a, and the reduced diameter portion 35a is engaged with the engagement groove 25 similar to that of the first embodiment. You may do it. The urging means receiver 13 of the first embodiment may or may not be provided.

  The other members have the same structure as that of the first embodiment, and therefore the description thereof is omitted. The same members as those of the first embodiment are denoted by the same reference numerals.

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

[Example 3]
In the first and second embodiments, the male coupling member 2 is provided with the adjustment member 21, the anchor bar 30, the space holding pipe 31, etc., so that the male locking member 23 is attached to the shaft of the male coupling member 2. Although it can be displaced in the direction orthogonal to the core Y-Y, the male connecting member 2 is not provided with the adjusting member 21, the anchor bar 30, the space holding pipe 31, and the like, and the female connecting member 1 is provided with the male type. By providing a member having the same effect as the adjusting member 21, the anchor bar 30, the space holding pipe 31 and the like in the connecting member 2, the female connecting member is centered around the retaining portion of the anchor bar. It may be possible to displace in a direction orthogonal to the direction.

  For example, as shown in FIG. 13, on the outer periphery of the casing 3 of the female connecting member 41, a deformable member, for example, a cylindrical adjustment member 42 formed of an elastic material such as polystyrene foam, rubber, resin, or cardboard is provided. And a locking portion 42a protruding rearward is provided on the rear side of the adjustment member 42.

  A space holding pipe 43 made of an elastic material such as rubber or metal is provided on the outer periphery of the anchor bar 18. The front end portion of the space holding pipe 43 is engaged with the engaging portion 42a of the adjusting member 42, and the rear end portion is made of an elastic material such as rubber provided on the retaining portion 18a of the anchor bar 18. The seat member 44 is locked. A gap 45 is provided between the anchor bar 18 and the space holding pipe 43.

  Note that an elastic material such as rubber may be provided on the entire outer periphery of the portion corresponding to the space holding pipe 43 in the anchor bar 18 without providing the space holding pipe 43 and the gap 45. For example, the adjustment member 42 may be formed to extend to the back side.

  The adjusting member 42, the anchor bar 18, and the space holding pipe 43 are fixedly embedded in one connecting member, for example, a shield segment so that the front end surface of the casing 3 is flush with the joint surface of the shield segment. Therefore, concrete is placed outside the adjusting member 42, the gap holding pipe 43, and the retaining portion 18a.

  Since the other members have the same structure as in the first and second embodiments, the description thereof is omitted, and the same members as those in the first and second embodiments are denoted by the same reference numerals.

  The female connection member 41 provided on one of the connection members has a retaining portion 18a of the anchor bar 18 by the interaction of the adjusting member 42, which is a deformable member, the gap 45, the gap holding pipe 43, and the seat member 44. As a center, it can be displaced in a direction perpendicular to the axis XX.

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

[Example 4]
In the first to third embodiments, only one of the female connecting member and the male connecting member can be displaced in the direction perpendicular to the axial center XX or YY. The male connecting member 2 is provided with an adjusting member 21, an anchor bar 30, a space holding pipe 31 and the like so that both the male connecting member and the male connecting member can be displaced in a direction perpendicular to the axial centers XX and YY. In addition, the female connecting members 1 and 41 may be provided with the adjusting member 42, the gap 45, the gap holding pipe 43, and the like.

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

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

[Example 5]
In the first to fourth embodiments, the engagement groove 25 is formed in the male locking member 23. However, the engagement groove 25 is not formed, and the inner peripheral portion of the engagement member 16 is recovered by its restoring force. The male locking member 23 and the engaging member 16 may be engaged with each other by pressing against the mold locking member 23.

  For example, the tip portions of the claw portions 16c of the annular push nut 16C, speed nut 16D, and retaining ring 16E shown in FIGS. 8 to 10 are brought into pressure contact with the outer peripheral surface of the male locking member 23 by the restoring force. To do.

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

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

[Example 6]
In the first to fifth embodiments, the female connecting members 1 and 41 and the male connecting member 2 are embedded in concrete, but the female connecting members 1 and 41 and the male connecting member 2 are made of steel segments that do not use concrete. You may make it attach to components to connect.

  For example, the female coupling members 1 and 41 and the male coupling member 2 anchor bars 18 and 30 in the first to fifth embodiments are not provided, and the female coupling members 1 and 41 and / or the male coupling member 2 adjustment member are provided. 21 and 42 are housed in a housing member whose front side is open, and this housing member is fixed to a component to be coupled such as a steel segment, and at least one of the female coupling members 1 and 41 and the male coupling member 2 is You may enable it to displace to the direction orthogonal to the axial center XX or YY.

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

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

[Other Examples]
Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

DESCRIPTION OF SYMBOLS 1, 41 Female type | mold connection member 2 Male type | mold connection member 4 Storage chamber 12 Female type | mold locking member 12b Locking | locking part of a female type | mold locking member 15 Energizing means 16, 16A-16F Engagement member 23 Male type locking member 23b Locking part of male locking member 25 engaging groove

Claims (5)

In the female connection member, a storage chamber having a distal end opened is provided, and in the storage chamber, a female locking member in which a locking portion made of a locking mountain continuous on the inner surface side is provided is provided,
At the tip of the male connecting member, a male locking member is provided with a locking portion made of a continuous locking mountain,
By inserting the male locking member between the female locking members, the locking hole formed by the female locking member is expanded and then the locking hole is reduced in diameter. A coupling tool in which the locking portion of the locking member and the locking portion of the male locking member are engaged with each other,
Provided on the back side of the female locking member is an engaging member that is movable in the axial direction of the female coupling member and changes in inner diameter;
An engagement groove in which the engagement member can be engaged is provided at the tip of the male locking member,
A coupling tool wherein the engaging member engages with an engaging groove when the female connecting member and the male connecting member are connected. In the female connection member, a storage chamber having a distal end opened is provided, and in the storage chamber, a female locking member in which a locking portion made of a locking mountain continuous on the inner surface side is provided is provided,
At the tip of the male connecting member, a male locking member is provided with a locking portion made of a continuous locking mountain,
By inserting the male locking member between the female locking members, the locking hole formed by the female locking member is expanded and then the locking hole is reduced in diameter. A coupling tool in which the locking portion of the locking member and the locking portion of the male locking member are engaged with each other,
Provided on the back side of the female locking member is an engaging member that is movable in the axial direction of the female coupling member and changes in inner diameter;
A coupling tool, wherein an inner peripheral portion of the engaging member is in pressure contact with an outer peripheral surface of the male locking member when the male locking member and the female locking member are connected.   2. A biasing means for biasing the female locking member toward the distal end is provided, and the engagement member is provided between the female locking member and the biasing means. 2. The connector according to 2. Using the connector according to any one of claims 1 to 3,
A connecting device for a concrete member, wherein the female connecting member is fixed to one concrete member to be connected, and the male connecting member is fixed to the other concrete member to be connected.   The concrete member connecting device according to claim 4, wherein the concrete member is a shield segment.

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