JP2019090298A - Joining means and member joining method, and precast concrete product joint member - Google Patents

Abstract

To provide joining means that provides excellent workability and is capable of being manufactured at low costs.SOLUTION: Joining means comprises a reception member and an insertion member to be inserted into the reception member. The reception member includes: an aperture; a reception space communicating with the aperture; a surrounding part having an outside surface whose inside surrounds the reception space; and a reception engaging part provided on the inside of the surrounding part. The insertion member includes: an insertion part to be inserted into the reception space; a continuous connection part provided continuously to the insertion part; and an insertion engaging part provided on the outside of the insertion part. The reception engaging part and the insertion engaging part are set to be in a relation in which the reception engaging part and the insertion engaging part have a predetermined interference amount in a direction appropriately perpendicular to the insertion direction. When the insertion member is inserted into the reception member, elastic deformation and/or plastic deformation of the reception member and/or the reception engaging part and/or the insertion engaging part are elastically deformed and/or plastically deformed to enable insertion of the insertion member. In a state in which the insertion member is inserted up to a predetermined position, the reception engaging part and the insertion engaging part are engaged with each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bonding means for bonding a plurality of members, in particular, a bonding method and method for bonding two bonding members close to each other in a direction perpendicular to a bonding surface, and a plurality of members. Joint members for joining precast concrete products, in particular for precast concrete products suitable for bringing two prejoined concrete products, which are members to be joined, close to each other in a direction perpendicular to their joining surfaces and joining them The present invention relates to a joint member.

  Patent Document 1 describes a joint constituted by a female lever fixed to one member and having a push rod, and a male pin fixed to the other member and having a split. In this joint, the male pin is pushed out by pushing the rod provided inside the male pin and pushed out and fixed to the inner surface of the female pin (paragraph of Patent Document 1) 0031 to 0033, Fig. 2). In addition, Patent Document 1 also describes a joint having the same configuration as that described above, but having a weir provided at the tip of a push rod (paragraph 0043 of Patent Document 1, FIG. 5).

  Patent Document 2 describes a joint constituted by a female member fixed to one member and having an insertion hole, and a male member fixed to the other member and having a cutting line. In this joint, when the conical body is set at the distal end of the male member and pushed into the insertion port, the conical body pushes the male member by pushing the distal end of the conical body by the top plate of the female member. The male member is frictionally fixed between the cone and the inner surface of the female member (paragraphs 0008, 0010, FIG. 4 of Patent Document 2).

JP, 2010-236348, A JP, 2015-172320, A JP, 2009-114746, A

  In the joint by the inclined bolt described in Patent Document 1, it is necessary to fasten the bolt while maintaining the state in which the two members are accurately positioned, and there is a problem that the construction is complicated. In addition, there is a problem that the shape is complicated and the manufacturing cost is high.

  With the joints described in Patent Documents 2 and 3, since the two members can be joined by moving the joining faces of the two members in the direction perpendicular to the joining face, the inclined bolt is used. Construction is better than when used. However, there is a problem that the shape is complicated and the manufacturing cost is high.

  Therefore, in the present invention, it is possible to provide a joining means and a joining method of members having a low joining load, good workability, low cost, and excellent manufacturability, and a joint member for precast concrete products and a joint member for precast concrete products. To aim.

  The bonding means of the present invention for solving the above problems comprises a receiving member and an insertion member inserted into the receiving member, the receiving member comprising an opening, a receiving space in communication with the opening, and An insertion portion having an outer side surrounding the receiving space by the inner side, and a receiving engagement portion provided inside the surrounding portion, the insertion member being an insertion portion to be inserted into the receiving space; And an insertion engaging portion provided outside the insertion portion, and the receiving engagement portion and the insertion engaging portion are in a direction substantially perpendicular to the insertion direction. When the front insertion member is inserted into the reception member, the reception member and / or the reception engagement portion and / or the insertion engagement portion are elastically deformed. And / or plastically deform to allow insertion of the insertion member; Member is in a state of being inserted to a predetermined position is characterized in that the receiving engagement part and said insertion engaging portion is engaged.

  In addition, the receiving engagement portion and the insertion engagement portion each have an engagement surface substantially perpendicular to the extraction direction of the insertion member, and the substantially perpendicular engagement surfaces are engaged with each other. And

  Further, the receiving and engaging portion has the substantially vertical engaging surface on the back side, and the cross section has a substantially right triangle shape, and the inserting and engaging portion is the substantially vertical engaging surface on the joint surface side And has a substantially right triangle shape.

  Further, the receiving space is characterized by forming a substantially cylindrical shape.

  Further, the receiving member is characterized by having a deformation allowing portion provided at a corresponding portion of a range in which at least the receiving engaging portion is provided on the outer side surface of the surrounding portion.

  The deformation allowing portion is characterized by having a receiving space.

  Further, the deformation allowing portion is characterized in that it has a shape that causes a gap between the inner surface of the deformation allowing portion and the outer surface of the surrounding portion.

  The receiving and engaging portion is characterized in that it is formed separately from the surrounding portion and is fixed to the surrounding portion.

  Further, the receiving and engaging portion is characterized by being constituted by one or more washer-like members.

  The receiving and engaging portion is characterized in that two or more washer-shaped members are stacked.

  Further, the inner surface of the member having a washer shape is characterized by being inclined.

  In addition, when the insertion member is inserted, the washer-shaped member is elastically and / or plastically deformed so as to be warped toward the back side.

  Further, the receiving and engaging portion is characterized by being constituted by one or more cylindrical and / or coiled members.

  Further, the receiving and engaging portion is constituted by one or more cylindrical and / or coiled members, and is characterized by having a slit and / or a seam.

  Further, the receiving member is characterized in that an extraction preventing mechanism for preventing the receiving member from coming out of the object to be joined is provided in a joined state with the insertion member for joining the object to be joined. And

  Further, the receiving member includes an end member connected to the rear end of the surrounding portion, and the surrounding portion and the end member are separate members.

  Further, the receiving member and / or the insertion member is characterized in that an anchor is provided.

  In addition, the anchor is characterized in that it forms one or more bar-like, rod-like, bowl-like, plate-like, cylindrical, coil-like, mesh-like shapes.

  Further, the inner surface on the back side of the surrounding portion is in the form of a female screw, and one end of the anchor is screwed to the rear side of the surrounding portion, and one end surface of the anchor forms the end surface on the back side of the receiving space It is characterized by

  Further, the anchor is characterized in that it has at least one of a hole portion, an uneven portion, a curved portion, a rib, a groove, a head, a flange portion, an enlarged diameter portion or a large diameter portion, a reduced diameter portion or a small diameter portion. And

  Further, the insertion member has a buried portion provided in series in the insertion portion, and the buried portion doubles as the anchor.

  The receiving member has a buried portion provided in series on the receiving member, and the buried portion doubles as the anchor.

  Also, the receiving member is characterized by including a joint surface reinforcing member that reinforces the joint surface.

  The receiving member may be embedded in the first member in advance, and a part or all of the connecting part of the insertion member may be embedded in the second member.

  The receiving member may be embedded in the first member in advance, and the insertion member may be inserted into the receiving member through a through hole provided in the second member.

  Further, the receiving member is exposed at an end face of the second member facing the joint surface, and the end face having the opening abuts against the opposite end face, and the insertion portion is formed of the first member. The through-hole provided in the member and the through-hole provided in the second member may be inserted into the receiving member.

  Further, the receiving member includes the surrounding portion and the receiving engaging portion which are separately formed, and the surrounding portion has an engaging portion receiving space communicating with an opening into which the insertion member is inserted. The receiving and engaging portion may include an engaging portion formed of a plurality of divided cores which are divided in the axial direction and a position restriction of the engaging portion capable of expanding its diameter by elastically pressing the plurality of divided cores. And an elastic member to be accommodated in the engaging portion receiving space.

  Further, the resilient member is characterized in that it is a wound spring wound around a cylindrical tubular body constituted by a plurality of divided cores.

  Further, the receiving and engaging portion includes a cylindrical body that accommodates the engaging portion in an engaging portion receiving space formed by a truncated conical inner peripheral surface that matches the outer peripheral surface of the engaging portion, The engaging portion has a frusto-conical external shape with the inner peripheral surface forming the insertion portion receiving space into which the insertion member is inserted from the small diameter end toward the large diameter end, as an engagement surface, The resilient member is disposed on the large diameter end portion side of the engaging portion accommodated in the engaging portion receiving space of the cylindrical body, and the elastic member is composed of a plurality of divided cores which are divided in the axial direction. It is characterized in that the position of the engaging portion is restricted so as to be able to expand the diameter by resiliently pressing the portion from the large diameter end to the small diameter end.

  Further, the resilient member is characterized by being a disc washer with a slit.

  Further, the surrounding portion has the engaging portion receiving space having a diameter capable of eccentrically accommodating the receiving engaging portion in the radial direction by a predetermined eccentric gap amount, and the insertion engaging portion of the insertion member The inward flange portion having a diameter larger than the outer diameter and an opening smaller than the outer diameter of the receiving and engaging portion is formed, and the receiving and engaging portion is inserted into the opening into which the insertion member is inserted. An inclined surface for guiding a centering guide for guiding an axial center of the receiving and engaging portion so as to coincide with an axial center of the insertion member inserted into the insertion opening, and the insertion is performed by the insertion of the insertion member It is characterized in that it has a self-centering function of aligning the axis of the member with the axis of the receiving and engaging portion.

  Further, the surrounding portion is exposed to the outside surface of the inward flange portion exposed in a state of being screwed and embedded in the anchor in a state in which the receiving and engaging portion is accommodated in the engaging portion receiving space. It is characterized in that it has an engagement recess for unlocking into which a tool for screwing a screw can be inserted.

  Further, the surrounding portion is characterized in that it has a tapered outer peripheral surface in which the outer diameter of the inward flange portion is larger than the outer diameter of the opposite side to the inward flange portion.

  Further, the receiving member is characterized in that a waterproofing process is performed to protect at least the engaging surface portion of the receiving engaging portion.

  Further, the present invention is characterized in that a waterproofing treatment by a waterproof paint film which can be peeled off by the insertion of the insertion member is applied to the engaging surface portion of the receiving and engaging portion.

  Moreover, it is characterized in that the waterproofing process is applied by the covering of the waterproof film which can be broken through the insertion of the insertion member.

  In addition, the surrounding portion is characterized by having a sealing member closing the opening.

  Furthermore, the present invention is a method of bonding members using any one of the above bonding means.

  Further, the present invention has a receiving member embedded in a first member made of precast concrete, and an insertion member embedded in a second member made of precast concrete, and the insertion member is inserted into the receiving member It is a joint member for precast concrete products that can join the first member and the second member by fitting, and the receiving member is an engaging portion that communicates with the opening into which the insertion member is inserted. A surrounding member having a receiving space formed by an inner circumferential surface, and a plurality of divided bodies housed in the engaging portion receiving space, having an engaging surface portion, and divided in the circumferential direction, the insertion member is inserted A receiving and engaging unit having an opening, and a wound elastic member disposed in a wound state on the receiving and engaging unit and capable of holding the receiving and engaging unit in an expandable manner, The members are above An insertion portion which can be inserted into the container engagement unit, a connecting portion provided in series in the insertion portion, and an insertion engagement portion provided outside the insertion portion, the engagement surface portion and the insertion engagement The part is set in a relationship having a predetermined amount of interference in a direction substantially perpendicular to the insertion direction, and the receiving and engaging unit is configured to receive the engagement surface portion and the insertion engagement portion when the insertion member is inserted. When the interference is released, the diameter is reduced by the elastic force of the elastic member, and the inner peripheral surface of the receiving and engaging unit and the outer peripheral surface of the insertion engaging portion are respectively And an engagement surface substantially perpendicular to a pulling direction of the insertion member, and the substantially perpendicular engagement surfaces are engaged with each other.

  The joint member for precast concrete product according to the present invention, wherein the surrounding member has a predetermined eccentric allowance gap capable of eccentrically accommodating the receiving and engaging unit with respect to any radial direction. A portion receiving space, and an inward flange portion having an opening larger than the outer diameter of the insertion engaging portion and smaller in diameter than the outer diameter of the receiving engagement unit; In the insertion direction for a centering guide for guiding the axis of the receiving and engaging unit so that the receiving and engaging unit guides the axis of the receiving and engaging unit to coincide with the axis of the inserted portion in the opening into which the insert is inserted. A guide surface which reduces the diameter, and by the insertion of the insertion portion, the axial center of the insertion portion and the axial center of the receiving and engaging unit are made to coincide spontaneously to absorb the insertion position error of the insertion member Characterized in that it is configured to .

  In the joint member for precast concrete product of the present invention, the surrounding member may be screwed and embedded in the anchor in a state in which the receiving and engaging unit is accommodated in the engaging portion receiving space. An outer end surface of the inward flange portion exposed from one member has an engagement recess capable of engaging a tool for screwing and / or unscrewing the enclosing member, and the inward flange portion It has the outer peripheral surface diameter-reduced toward the back side of the insertion direction of the said insertion part from the said outer end surface side of this.

  The joint member for precast concrete product of the present invention is characterized in that the receiving and engaging unit is covered with a waterproof film which can close the opening.

  According to the present invention, high tensile strength can be exhibited while being able to be manufactured at extremely low cost and bonding with extremely low load, and joint members can be rusted even by rain water or the like due to product storage outdoors. It is possible to provide a joining method and a joining method for joining members which can prevent the insertion position deviation and can absorb the insertion position deviation, and the joining member for the precast concrete product, and the joint member for the precast concrete product.

It is a perspective view which shows the structure of the coupling | joint of 1st Embodiment of this invention. It is a figure which shows the shape of a receiving member, and FIG. 2 (A) is a longitudinal cross-sectional view, and is a front view of FIG. 2 (B). It is a figure explaining the shape of an insertion member, and Drawing 3 (A) is a longitudinal section, and Drawing 2 (B) is a side view. Drawing 4 (A)-(C) is a figure explaining the joining method of the member by a joint. 5 (A) shows the shape of the engaging portion, FIG. 5 (B) shows the interference state of the engaging portion during the joining operation, and FIG. 5 (C) shows the engagement of the engaging portion after the end of joining FIG. FIGS. 6A and 6B are diagrams for explaining the deformation allowing member. FIGS. 7A to 7D are diagrams for explaining modified examples of the deformation allowing member. FIGS. 8A to 8F are diagrams for explaining modifications in which the engaging portion is separated. FIG. 9 is a view for explaining a modification in which the engaging portion is separated. FIGS. 10A and 10B are diagrams for explaining the shape of the washer. FIG. 11 is a view for explaining a modification in which the engaging portion is separated. FIG. 12 is a diagram for explaining the shape of the washer. FIG. 13 is a view for explaining a modification in which the engaging portion is separated. FIG. 14 is a diagram for explaining the shape of the washer. FIG. 15 is a longitudinal sectional view of a receiving member provided with a guide portion. FIG. 16 is a longitudinal cross-sectional view of a receiving member provided with an anti-disengagement mechanism. FIG. 17 is a longitudinal sectional view of the receiving member in which the envelope and the end are separated. FIG. 18 is a perspective view of a receiving member whose external shape is a rectangular solid. FIGS. 19A to 19E are diagrams for explaining a receiving member provided with an anchor. FIGS. 20A to 20D are diagrams for explaining a receiving member provided with a plate-like anchor. It is a figure explaining the receiving member which provided the joint surface reinforcement member, FIG. 21 (A) is a longitudinal cross-sectional view, FIG. 21 (B) is a side view. FIGS. 22A to 22E are diagrams for explaining an insertion member provided with an anchor. FIG. 23: (A)-(D) is a figure explaining the insertion member provided with the plate-shaped anchor. FIGS. 24A to 24C are diagrams for explaining modified examples of the engaging portion. FIGS. 25 (A) and 25 (B) are diagrams for explaining a spiral engaging portion. FIG. 26 is a view showing an application example of the present invention to a shield. FIG. 27 is a view showing an application example to a wooden product of the present invention. FIGS. 28A to 28C are diagrams for explaining modified examples of the receiving member. FIGS. 29A and 29B illustrate an embodiment in which the insertion member is not embedded in the second member. FIG. 30 is a cross-sectional view showing a modification of the receiving member provided with the anchor. 31 (A) to 31 (C) are diagrams for explaining components of the receiving member. FIG. 32 is a cross-sectional view of the insertion member. FIG. 33 is an end view of a surrounding portion which constitutes the receiving member. FIG. 34 is a cross-sectional view of the engaging portion that constitutes the receiving member. FIGS. 35 (A) and 35 (B) are views for explaining a winding spring constituting an engaging portion. 36 (A) and 36 (B) are diagrams for explaining the split core constituting the engagement portion. FIG. 37A and FIG. 37B are diagrams for explaining an engaging portion covered with a rustproof film. FIG. 38 is a cross-sectional view of a state in which the insertion member is inserted into the receiving member provided with the anchor. FIG. 39 is a view for explaining the centering function of the engaging portion. FIGS. 40A and 40B are diagrams for explaining a state in which the axial center position of the insertion member inserted into the engaging portion is shifted from the axial center position of the anchor. FIGS. 41 (A) and 41 (B) are diagrams showing the insertion completion state in the case where the axial center position of the insertion member is inserted into the engaging portion in a state of being shifted from the axial center position of the anchor. FIG. 42 is a view for explaining the case where the surrounding portion is removed from the embedded receiving member. FIG. 43 is a cross-sectional view showing another modification of the receiving member provided with the anchor. FIG. 44 is an exploded perspective view of a receiving portion forming the receiving member.

  Next, a joint 1 according to a first embodiment of the present invention will be described. Although the expressions "upper" and "lower" are used for convenience of explanation, the upper and lower sides in the state in which the joint 1 is used do not necessarily coincide. FIG. 1 is a perspective view of the joint 1. The joint 1 comprises a receiving member 10 embedded in the first member and an insertion member 20 embedded in the second member. Inside the receiving member 10, a receiving space 13 is provided, and the joint surface side of the receiving space 13 is a circular opening 15. The insertion member 20 is inserted into the receiving member 10 through the opening 15 and fixed so that the engaging portion of the receiving member 10 described later and the engaging portion of the insertion member 20 engage and are not pulled out in the opposite direction.

  FIG. 2 is a view showing the structure of the receiving member 10. (A) is a cross-sectional view (hereinafter referred to as "longitudinal cross-sectional view") cut by a plane perpendicular to the joint surface, and (B) is a front view. The receiving member 10 is provided with the surrounding portion 11 and the end member 12, and the whole is embedded in the first member 101 so that the end face on the joint surface side coincides with the joint surface 101a, and the outer peripheral face 18 and the end face 19 are the first member It adheres to 101. The shape of the surrounding portion 11 is cylindrical, and the cross-sectional shape (hereinafter simply referred to as "cross-sectional shape") cut by a plane parallel to the joint surface 101a in the axial direction is circular, and the joint surface side is open and circular opening A receiving space 13 forming part 15 is provided. The diameter of the opening 15 is made larger than the outer diameter of the insertion portion of the insertion member described later. The end face of the side (hereinafter referred to as “the back side”) remote from the joint surface of the receiving space 13 is closed by the end member 12. The inner surface 14 of the surrounding portion 11 is provided with an engaging portion 16 (an example of a receiving engaging portion) having a triangular shape in a longitudinal sectional view and protruding from the inner surface 14. A plurality of engaging portions 16 are provided in the axial direction of the receiving member 10 without intervals in the axial direction, and the engaging portions 16 are provided over the entire circumference in the circumferential direction.

  The external shape of the receiving member 10 can be made other than cylindrical as long as the receiving space and the engaging portion can be formed in which the insertion member 20 can be inserted. Moreover, the longitudinal cross-sectional shape of the engaging part 16 can be made other than a triangle, if the engaging part 26 of the below-mentioned insertion member 20 can be engaged. In addition, the engaging portions 16 may be provided at intervals in the axial direction, or may be provided intermittently in the circumferential direction. Further, the arrangement range of the engaging portion 16 in the axial direction may be only a part of the surrounding portion 11 as shown in FIG. 2A, or may be arranged over the entire length. Also, the engaging portion 16 may be integral with the surrounding portion 11 or may be separate.

  FIG. 3 is a view showing the structure of the insertion member 20, in which (A) is a longitudinal sectional view and (B) is a front view. The insertion member 20 includes an embedded portion 21 embedded in the second member 102 and an insertion portion 24 projecting from the joint surface 102 a. The embedded portion 21 is configured of a support portion 22 having a circular cross section provided in series in the insertion portion and a head 23 having a circular cross section larger than the support portion 22. The insertion portion 24 is a circular cross section having the same diameter as the support portion 22, and the outer peripheral surface 25 is provided with an engaging portion 26 (an example of an insertion engaging portion) which has a triangular shape in a longitudinal sectional view and protrudes from the outer peripheral surface 25. ing. The engaging portions 26 are provided in the same number as the engaging portions 16 of the receiving member 10 in the axial direction of the insertion portion 24 and are provided over the entire circumference in the circumferential direction.

  In addition, if the longitudinal cross-sectional shape of the engaging part 26 can be engaged with the engaging part 16 of the receiving member 10, it can be made other than a triangle. Also, the engaging portions 26 may be provided at intervals in the axial direction, or may be provided intermittently in the circumferential direction. Also, the number of engaging portions 16 and the number of engaging portions 26 may be different.

  Various materials can be used for the receiving member 10 and the insertion member 20 according to the desired strength, the manufacturing cost, the environmental conditions in which the first member and the second member are used, and the like. It is possible to form by an appropriate manufacturing method using an appropriate material such as resin, wood, paper, glass, ceramics, rubber and the like.

  Next, with reference to FIGS. 4A to 4C and 5A to 5C, a method of joining members by the joint 1 will be described. Here, it is assumed that the second member 102 in which the insertion member 20 is embedded is joined to the existing first member 101 in which the receiving member 10 is embedded.

  First, as shown in FIG. 4A, the joint surface 101a of the first member 101 and the joint surface 102a of the second member 102 become parallel, and the central axis of the receiving member 10 and the central axis of the insertion member 20 Arrange them so that they almost match. FIG. 5A is a view showing the relationship between the engaging portion 16 of the receiving member 10 and the engaging portion 26 of the insertion member 20 in a state in which the central axis of the reception member 10 and the central axis of the insertion member 20 are aligned. is there. The engaging portion 16 has an engaging surface 16a perpendicular to the axial direction of the receiving member 10 (that is, the pulling-out direction of the insertion member 20), and the diameter of the receiving space 13 decreases from the joint surface side toward the back side. And an inclined surface 16b. The engagement portion 26 has an engagement surface 26a perpendicular to the axial direction of the insertion portion 24 (that is, the extraction direction of the insertion member 20), and the diameter of the insertion portion 24 decreases in diameter from the joint surface side to the back side. It is inclined and provided with the inclined surface 26b parallel to the inclined surface 16b. The height h1 of the engagement portion 16 and the height h2 of the engagement portion 26 are respectively smaller than the distance h4 between the inner surface 14 of the receiving member and the outer peripheral surface 25 of the insertion portion 24 and the insertion direction of the insertion member 20 And the interference amount h3 in an approximately perpendicular direction. In other words, h1 + h2> h4.

  From this state, as shown by arrow A in FIG. 4A, the second member 102 is moved in a direction perpendicular to the bonding surfaces 101a and 102a, and the insertion portion 24 of the insertion member 20 is received from the opening 15 through the receiving member 10. Into the receiving space 13 of the FIG. 4B shows a state in which the engagement portion 16 and the engagement portion 26 start to interfere with each other. Moreover, the enlarged view of the B section in this state is shown to FIG. 5 (B). The distal end portion 16c of the inclined surface 16a abuts on the distal end portion 26c of the inclined surface 16b, and the engaging portion 26 presses the engaging portion 16 in the left direction in FIG. 5B. Due to the pressing force and the reaction force, the engaging portion 16 is elastically deformed such that the engaging surface 16 a is inclined to the back side, and the engaging portion 26 is elastically deformed such that the engaging surface 26 a is inclined to the joint surface. When the insertion member 20 further advances to the back side and the apex 26 d of the engagement portion 26 advances to the back side from the apex 16 d of the engagement portion 16, the interference is eliminated and the engagement surface 16 a is engaged perpendicularly to the inner surface 14 The surface 26 a returns perpendicularly to the outer circumferential surface 25. The interference amount h3 is appropriately set in consideration of the material of the receiving member 10, the material of the insertion member 20, the shape of the engaging portion 16, the shape of the engaging portion 26, and the like so that such a deformation process occurs.

  Note that the engaging portion 16 and the engaging portion 26 may be formed of materials having greatly different rigidity, and only one of them may be deformed substantially. Although the deformation of the engaging portion 16 and the engaging portion 26 completely returns after the interference is eliminated, the engaging surface 16a of the engaging portion 16 and the engaging surface 26a of the engaging portion 26 are engaged. Plastic deformation may be left on condition that it is carried out. Also, in order to allow insertion of the insertion member 20, the surrounding portion 11 and / or the insertion portion 24 may be deformed as a whole.

  When the joint surface 101a of the first member 101 and the joint surface 102a of the second member 102 are brought into contact with each other, as shown in FIG. 4C, a plurality of pairs of engaging portions 16 and engaging portions 26 at corresponding positions. Respectively engage to form the joint 1. The enlarged view of the part C in this state is shown in FIG. The tip end 16e of the engagement surface 16a and the tip end 26e of the engagement surface 26a are engaged, and a very large pullout resistance can be obtained. As in this example, when the engagement surface is perpendicular to the pull-out direction, particularly high pull-out resistance can be obtained.

  According to the joint 1, the joint surface 101a of the first member 101 in which the receiving member 10 is embedded and the joint surface 102a of the second member 102 in which the insertion member 20 is embedded are disposed opposite to each other. The first member and the second member can be easily joined simply by relatively moving in the direction perpendicular to the direction of the movement of the joint surface 101a and bringing the joint surface 101a into contact with the joint surface 102a.

  The receiving member 10 and the insertion member 20 of the joint 1 have a simple shape based on a circular pipe and a cylinder, and can be easily manufactured at low cost by processing, for example, a commercially available steel pipe, bar steel or the like.

  Next, modifications of the receiving member 10 and the insertion member 20 constituting the joint 1 will be described. The same components as those of the receiving member 10 and the inserting member 20 shown in FIGS. 1 to 5 are denoted by the same reference numerals as those in FIGS. These modifications can be implemented in combination with each other as long as there is no contradiction.

  The receiving member 10a which is the 1st modification of a receiving member is demonstrated. The receiving member 10 a differs from the receiving member 10 in that the receiving member 10 a includes a deformation allowing member. 6A is a longitudinal sectional view of the receiving member 10a before the insertion member 20 is inserted, and FIG. 6B is a longitudinal sectional view of the receiving member 10a after the insertion member 20 is inserted.

  The deformation allowing member 30 is provided on the receiving member 10 a in the vicinity of a position where the tip of the insertion member 20 finally reaches from the joint surface 101 a of the outer peripheral surface 18. In this example, the shape of the deformation allowing member 30 is a circular tube whose inner diameter is substantially equal to the outer diameter of the surrounding portion 11. The material of the deformation allowing member 30 is softer than that of the first member 101. For example, when the first member 101 is made of concrete, synthetic rubber or the like can be used.

  As shown in FIG. 6A, the whole of the receiving member 10a is embedded in the first member 101, and the outer peripheral surface 18 and the end face 19 abut the first member 101 and are restrained by the first member. Therefore, the outer diameter of the receiving member 10 before the insertion member 20 is inserted is D1, and the outer diameter of the receiving member 10 when the insertion portion 24 of the insertion member 20 is inserted into the receiving space 13 of the receiving member 10a is D2. In this case, if the deformation allowing member 30 is not disposed, even when the rigidity of the surrounding portion 11 is small, as shown in FIG. 4B and FIG. 5B, the engaging portion 26 of the insertion member 20 receives The diameter expansion amount (D2-D1) of the surrounding portion 11 when the engaging portion 16 of the member 10 is pressed is extremely small.

  However, as shown in FIG. 6 (B), by arranging the deformation allowing member 30 with appropriately selected thickness and material and appropriately setting the rigidity, the portion where the deformation allowing member 30 of the surrounding portion 11 is disposed is It becomes possible to expand and deform. Since the diameter expansion deformation of the surrounding portion 11 is possible, the insertion member 20 can be smoothly inserted even if the interference amount h3 (see FIG. 5A) is increased. That is, as shown in FIG. 6A, the surrounding portion 11 of the receiving member 10a is inserted by inserting the insertion member 20 from the state of the outer diameter D1 before the insertion member 20 is inserted. As shown to B), it can carry out diameter expansion deformation | transformation to the state of the outer diameter D2. In FIGS. 6 (A) and 6 (B), although it exaggerates and draws, when the outer diameter D1 of the receiving member 10a is about several tens of mm, for example, the diameter expansion amount (D2-D1) is about 0.1 mm. The above effects are sufficiently obtained.

  FIGS. 7A and 7B illustrate a modification of the deformation allowing member. As shown in FIG. 7A, the deformation allowing member 32 is a circular tubular member similar to the deformation allowing member 30, but a hollow portion 33 is provided. When the insertion member 20 is inserted into the receiving member 10a, the hollow portion 33 disappears or shrinks as shown in FIG. 7B, and the deformation allowing member 34 is deformed so as to decrease in thickness. Therefore, the surrounding part 11 can be diameter-expanded and deformed similarly to FIG. 6 (B). By providing a space into which the constituent material of the deformation allowing member 32 can enter as in the hollow portion 33, the amount of diameter expansion can be easily controlled, and the degree of freedom in material selection can be increased. For example, even when the first member 101 is made of concrete, it is possible to use a metal having a hardness higher than that of concrete as the material of the deformation allowing member 32. The shape, number, and arrangement of the hollow portions 33 may be different from those shown in FIG. 7 (A).

  FIGS. 7C and 7D illustrate another modification of the deformation allowing member. As shown in FIG. 7C, the deformation allowing member 34 is a circular tubular member similar to the deformation allowing member 30, but the inner surface 36 is provided with a plurality of convex portions 35. The shape in the longitudinal cross-sectional view of the convex portion 35 is triangular, and the apex thereof abuts on the outer peripheral surface 18 of the receiving member 10 a, and a space 37 is formed between the inner surface 36 and the outer peripheral surface 18. When the insertion member 20 is inserted into the receiving member 10a, the space 37 disappears or shrinks as shown in FIG. 7D, and the deformation allowing member 34 deforms so as to decrease in thickness. Therefore, the surrounding part 11 can be diameter-expanded and deformed similarly to FIG. 6 (B). The space 37 functions as a space into which the constituent material of the deformation allowing member 34 can enter, like the hollow portion 33, and the same effect as the deformation allowing member 32 described above can be obtained. The shape, number, and arrangement of the protrusions 35 may be different from those shown in FIG. 7C.

  The receiving member 10b which is the 2nd modification of a receiving member is demonstrated. The receiving member 10 b differs from the receiving member 10 in that the surrounding portion 11 and the engaging portion 16 are separately provided. Depending on the material and dimensions of the receiving member, it is easier to manufacture separately. FIG. 8A is a longitudinal sectional view of the receiving member 10 b, and FIG. 8B is a front view of the inclined washer 40.

  As shown in FIG. 8A, six inclined washers 40 are stacked and disposed in the receiving space 13 of the receiving member 11b. The inclined washer 40 is fixed to the recess 11 a provided in the surrounding portion 11 so that the outer peripheral surface of the inclined washer 40 abuts on the inner surface 14 of the receiving space 13.

  As shown in FIG. 8 (B), the inclined washer 40 is an annular member having a circular opening 42 penetrating in the thickness direction, and the opening 42 is reduced in diameter from the joint surface side toward the back side. The inner surface of the inclined washer 42 is an inclined surface 41. An inner portion including the inclined surface 41 of the inclined washer 40 protrudes from the inner surface 14 of the surrounding portion 11 to form an engaging portion 16. When the insertion member 20 is inserted into the receiving member 10b, the engagement portion 16 and the engagement portion 26 of the insertion member 20 are engaged as in the case shown in FIGS. 5B and 5C, and the joint 1 is formed. Be done.

  FIGS. 8 (C) and 8 (D) are diagrams for explaining a modification of the washer for forming the engaging portion. The inclined washer 43 includes the inclined surface 43a in the same manner as the inclined washer 40, but the inclination of the inclined surface 43a is larger than the inclination of the inclined surface 41 (the difference between the diameter on the joint surface side of the opening and the diameter on the back side is Large). Further, compared with the example of FIG. 8A, the width of the annular portion 43b of the inclined washer 43 is relatively large with respect to the diameter of the receiving space, and before the insertion member 20 is inserted, FIG. As shown in C), the inclined washer 43 entirely protrudes perpendicularly from the inner surface 14. An inner circumferential end including the inclined surface 43 a of the inclined washer 43 forms an engaging portion 16.

  When the insertion member 20 is inserted to a predetermined position, as shown in FIG. 8 (D), the inclined washer 43 is deformed into a funnel shape so that the inside is in the back side. The engaging portion 26 of the pressing member 20 has a bar-like shape, and is engaged with the engaging portion 16 to form the joint 1. The deformation of the inclined washer 44 at this time may be elastic deformation or plastic deformation, but it is preferable to use elastic deformation because a force for tightening the insertion member 20 toward the center acts.

  FIGS. 8E and 8F are views for explaining another modification of the washer for forming the engaging portion. The washer 44 is a washer of a normal shape in which the inner surface 44a is not inclined. Like the inclined washer 43, before the insertion member 20 is inserted, the entire washer 44 vertically protrudes from the inner surface 14 as shown in FIG. 8 (E).

  When the insertion member 20 is inserted to a predetermined position, as shown in FIG. 8 (F), the washer 44 is deformed into a funnel shape so that the inner side enters the back side. In this state, the inner end including the inner surface 44 a forms the engagement portion 16. The engaging portion 26 of the insertion member 20 has an isosceles triangle shape, and is engaged with the engaging portion 16 to form the joint 1. Although the deformation of the washer 44 at this time may be elastic deformation or plastic deformation, elastic deformation is preferable because a force for tightening the insertion member 20 toward the center acts.

  FIGS. 9 and 10 are views for explaining another modification in which the engaging portion 16 is formed of a washer-shaped member. The basic structure of the receiving member 140 of FIG. 9 is the same as that of the receiving member 10 of FIG. 1 and includes a cylindrical surrounding portion 141. An anchor 143 screwed with one end 142 is screwed into the rear end of the surrounding portion 141. Ribs 144 are provided on the outer peripheral surface of the anchor 143. The insertion member 145 of FIG. 9 is a member based on a cylindrical shape similar to the insertion member 20 of FIG. 1, and the insertion portion 146 inserted into the receiving space of the receiving member 140 and the connecting portion provided in series in the insertion portion 146 An engagement portion 149 is provided on the outer periphery of the insertion portion 147. Ribs 148 are provided on the outer peripheral surface of the connecting portion 147.

  A plurality of washers 150 or washers 155 are stacked on the receiving portion of the receiving member 140, and the outer peripheral surface is fixed to the inner surface of the surrounding portion 141. As shown in FIG. 10A, the washer 150 is formed so as to be inclined so that the center side enters the back side of the surrounding portion 141, and has an inclined surface 151. And the inclined surface 151 tip part 153 forms the engaging part. The cross-sectional shape of the washer 150 is C-shaped with a gap 152. Like the washer 155 shown in FIG. 10 (B), it may be configured to have a slit 157 instead of the gap 152. The washer 155, like the washer 150, has an inclined surface 156 and its tip end portion 158 is an engagement portion. By providing the gap or the slit, the insertion of the insertion member 145 is facilitated.

  11 and 12 are similar to the modification shown in FIGS. 9 and 10, but the shape of the washer is different. The washer 160 has an inclined surface 156 in the same manner as the washer 155 of FIG. 10 (B), and its tip end portion 158 is an engagement portion. The washer 160 has a flange portion 162 substantially vertical to the inner surface of the surrounding portion 141 at the outer peripheral portion of the inclined surface 156, and the outer periphery of the flange portion 162 is fixed to the inner surface of the surrounding portion 141. Also, the washer 160 is provided with three slits 163. In addition, the insertion part 146 and the connection part 147 which are shown in FIG. 11 are comprised as another member integrated by screwing, for example, the hole 149a which is a tool for screwing the insertion part 146, for example, a hexagonal wrench is inserted. Is provided at the tip of the insertion portion 146. The insertion part 146 and the connection part 147 can be integrally formed as one member.

  13 and 14 are similar to the modification shown in FIGS. 9 and 10, but the shape of the washer is different. The washer 170 is L-shaped in a longitudinal cross section, and includes a parallel portion 171 and an inclined portion 172 which are fixed to the inner surface in parallel with the inner surface of the surrounding portion 141 as shown in FIG. Also, the washer 170 is provided with three slits 173. The positions and the number of slits in the washers 155, 160, and 170 may be different from those in the respective drawings.

  In addition, in each modification shown to FIG. 8 (A)-(F) and 9-14, the number of sheets of an inclination washer or a washer, an arrangement position, and a shape may differ from the thing of illustration. Further, the engaging portion 16 may be formed by a member separate from the surrounding portion 11 other than the washer. For example, the engaging portion 16 may be formed of a tubular member, a coiled member, or the like that is separate from the surrounding body to be fitted into the inside of the surrounding body constituting the surrounding portion 11.

  The receiving member 10c which is the 3rd modification of a receiving member is demonstrated. The receiving member 10 c differs from the receiving member 10 in that a guide portion for facilitating insertion of the insertion member 20 is provided. FIG. 15 is a longitudinal sectional view of the receiving member 10c.

  The end 11a on the opening side of the surrounding portion 11 of the receiving member 10c has a shape in which the diameter of the receiving space 13 increases from the back side to the opening side, and the end on the opening side of the receiving member 10c A guide portion 45 is formed in the portion. Even if there is a slight error in the position of the first member or the second member at the time of joining, the distal end of the insertion member 20 slides while abutting on the inclined inner surface 14a of the guide portion 45, so the insertion member 20 is smoothly inserted. can do.

  The receiving member 10d which is a 4th modification of a receiving member is demonstrated. The receiving member 10 d is different from the receiving member 10 in that a slip prevention mechanism is provided. FIG. 16 is a longitudinal sectional view of the receiving member 10d.

  The outer peripheral surface 18 of the receiving member 10d is provided with a convex portion 50 having a trapezoidal cross-sectional shape in the vertical cross section as a slip-off preventing mechanism. The convex portion 50 may be annularly provided continuously over the entire circumference of the outer circumferential surface 18 or may be discontinuously provided. By providing the convex portion 50, the receiving member 10d is further difficult to come off by the engagement of the convex portion 50 with the material constituting the first member in addition to the adhesion with the first member. In addition, the shape of the convex part 50 can also be made into shapes other than trapezoids, such as a triangle and a semicircle, for example. Further, the convex portion 50 may be integrally formed with the surrounding portion 11 and the end member 12 by forging, cutting or the like, or separately fixed to the surrounding portion 11 and the end member 12 by welding, adhesion or the like. Also good.

  The receiving member 10e which is the 5th modification of a receiving member is demonstrated. The receiving member 10 e is different from the receiving member 10 in that the surrounding portion and the end member are separated. FIG. 17 is a longitudinal sectional view of the receiving member 10e. Depending on the material and dimensions of the receiving member, it is easier to manufacture separately.

  In the receiving member 10e, the surrounding portion 11 is formed by processing, for example, a steel pipe, and the disk-shaped end member 12 is joined to the end on the back side thereof. Joining of both members can be performed by any method such as welding, screwing, bonding and the like. Before the end members 12 are joined, both ends of the surrounding portion 11 are opened, so that the processing or attachment of the engaging portion 16 is facilitated. The surrounding portion 11 and the end member 12 may be divided into three or more parts and then assembled.

  The receiving member 10f which is a 6th modification of a receiving member is demonstrated. The receiving member 10 f has an outer shape different from that of the receiving member 10. FIG. 18 is a perspective view of the receiving member 10 f.

  The outer shape of the receiving member 10f is a rectangular solid, and a circular opening 15 is formed on the end face on the bonding surface side, and a cylindrical receiving space similar to that shown in FIG. 2A is formed inside. Thus, even if the outer shape of the insertion member 20 is cylindrical, the outer shape of the receiving member 10 f can be made into a rectangular solid which is not similar to the outer shape of the insertion member 20. Further, the cross-sectional shapes of the opening 15 and the receiving space are also large enough to insert the insertion member 20. If the engagement portion can be formed, the cross-sectional shape of the insertion member 20 can not be similar.

  A seventh modification of the receiving member, which is a receiving member 10g to 10j, will be described. The receiving members 10g to 10j are manufactured by solidifying a flowable material, such as concrete, as the first member, and are different from the receiving member 10 in that the receiving members 10g to 10j are provided with rod-like or cage-like anchors. By providing an anchor, the withdrawal resistance of the receiving member can be increased.

  The receiving member 10g whose top view is shown in FIG. 19A comprises a cylindrical surrounding portion 11 with the end member 12 omitted. A female screw is formed in the end hole 12 b on the back side of the inner surface 14. The anchor 60 is a rod-like member such as a deformed rebar, and an external thread is formed at one end 60 a thereof. The anchor 60 is fixed to the surrounding portion 11 by being screwed from the end face 19 side, and the end face 60 b of the anchor 60 forms the end face of the receiving space 13. With such a configuration, the receiving member can be easily manufactured using a commercially available steel pipe or the like and a reinforcing bar or the like.

  In the receiving member 10 h whose plan view is shown in FIG. 19B, two linear anchors 61 are provided on the end face 19. Further, in a receiving member 10i whose plan view is shown in FIG. 19C, a U-shaped anchor 62 is provided on the end face 19. For example, deformed reinforcing bars can be used as the anchors 61 and 62, but the material, the shape, the number, and the mounting position can be arbitrarily changed as long as the required adhesive force is obtained. As fixation to the end surface 19 of the anchors 61 and 62, you may provide and screw together a screw part other than welding.

  In the receiving member 10 j whose top view is shown in FIG. 19 (D) and side view is shown in FIG. 19 (E), a wedge-shaped anchor 65 is provided. The wedge-shaped anchor 65 is composed of a flat end plate 66 and two side plates 67 provided on both ends of the end plate 66 in the direction perpendicular to the end plate 66. Ends of the side plate 67 not connected to the end plate 66 are respectively joined to the end face 19 via the square plate member 70, and a space 68 which is open at the top and bottom is formed by the wedge anchor 66 and the plate member 70. It is done. The receiving member 10 j is fixed in the mold before the flowable material is injected, and when the material is injected, the material flows into the space 68 and solidifies with the other portions. Therefore, while the outer surface 69 of the side plate 67 adheres to the material, the end plate 66 can be engaged with the material injected into the space 68 to further increase the pullout resistance. In this example, although the end plate 65 and the side plate 66 are integrated, they may be separately formed and then joined. In addition, as long as the space 68 is formed and the end plate 66 engaged with the material flowing into this portion is provided, the shape different from FIGS. 19D and 19E can be obtained. As the material of the wedge-shaped anchor 65, any material such as metal and synthetic resin can be used, but a material that easily adheres to the material of the first member is preferable.

  The receiving members 10k and 10m which are the 8th modifications of a receiving member are explained. The receiving members 10k and 10m are manufactured by solidifying a fluid material such as concrete, and the first members are different from the receiving member 10 in that they have plate-like anchors. By providing an anchor, the withdrawal resistance of the receiving member can be increased.

  The receiving member 10k, a side view of which is shown in FIG. 20A and a plan view of which is shown in FIG. 20B, is provided with a plate-like anchor 72. The plate-like anchor 72 is a plate-like member having a width substantially equal to the outer diameter of the receiving member 10 k, and one end thereof is connected to the end face 19. Ribs 73 are provided on the outer peripheral surface of the plate anchor 72. The connection between the plate anchor 72 and the end face 19 can be made by any method such as welding, bonding, bolting and the like. As the material of the plate-like anchor 72, any material such as metal and synthetic resin can be used, but a material that easily adheres to the material of the first member is preferable. With such a configuration, the adhesion between the outer peripheral surface of the plate anchor 72 and the first member and the engagement between the rib 73 and the first member increase the pullout resistance. The shape, the arrangement, and the number of the ribs 73 may be different from those shown in FIGS. 20A and 20B as long as they can be engaged with the first member to increase the withdrawal resistance. In addition, the rib 73 may be omitted if sufficient adhesion resistance can be obtained only by adhesion.

  The receiving member 10m, a side view of which is shown in FIG. 20C and a plan view of which is shown in FIG. 20D, is provided with a plate-like anchor 75 similar to the receiving member 10k. The plate-like anchor 75 is provided with a plurality of holes 76 having a circular cross section penetrating in the thickness direction. By providing the holes 76, in addition to adhesion, the engagement with the material flowing into the holes 76 can further increase the pullout resistance. The cross-sectional shape of the hole 76 may be other than a circle, and the arrangement position and the number may be different from those in FIGS. 20 (C) and 20 (D).

  The receiving member 10n which is the 9th modification of a receiving member is demonstrated. The receiving member 10 n differs from the receiving member 10 in that the receiving member 10 n includes a joint surface reinforcing member. Fig. 21 (A) is a longitudinal sectional view of the receiving member 10n, and Fig. 21 (B) is a front view of the receiving member 10n.

  The receiving member 10 n includes a joint surface reinforcing member 80. The joint surface reinforcing member 80 is a ring-shaped plate-like member, and is erected on the outer periphery of the surrounding portion 11 so that the position of the one surface 81 coincides with the end surface on the joint surface side of the surrounding portion 11. By providing the joint surface reinforcing member 80, the rigidity of the joint surface can be enhanced. The material of the joint surface reinforcing member 80 can be any material such as metal or synthetic resin if it can be disposed near the joint surface and the rigidity of the joint surface can be enhanced, and the shape, arrangement, number of sheets are also shown in FIG. And B) may be different.

  Insertion members 20a to 20d which are a first modification of the insertion member will be described. The insertion members 20a to 20d are manufactured by solidifying a fluid material such as concrete by the second member, and are different from the insertion member 20 in that the insertion members 20a to 20d are provided with rod-like or bowl-like anchors. By providing the anchor, the pullout resistance of the insertion member can be increased.

  The embedding part 21 and the insertion part 24 are integrally formed by processing the insertion member 20a which shows a top view in FIG. 22 (A), for example by processing one deformed rebar. The buried portion 21 has a shape in which the head portion 23 is omitted and the deformed rebar is used as it is and doubles as an anchor. With such a shape, the insertion member 20a can be manufactured extremely easily. In this example, the buried portion 21 is straight, but may be bent in an L-shape, a J-shape, or the like.

  In the insertion member 20 b whose plan view is shown in FIG. 22 (B), two linear anchors 90 are provided on the end face 28 of the head 23. Further, in the insertion member 20c whose plan view is shown in FIG. 22C, the U-shaped anchor 91 is provided on the end surface 28. For example, a deformed rebar can be used as the anchors 90 and 91, but the material, the shape, the number, and the mounting position can be arbitrarily changed as long as the required adhesive force is obtained. As fixation to the end surface 28 of the anchors 90 and 91, you may provide and screw together a screw part other than welding.

  The wedge-shaped anchor 95 is provided in 20 d of insertion members which show a top view to FIG. 22 (D), and a side view to FIG. 22 (E). The wedge-shaped anchor 95 is composed of a flat end plate 96 and two side plates 97 provided at both ends of the end plate 96 in the direction perpendicular to the end plate 96. Ends of the side plate 97 not connected to the end plate 96 are respectively joined to the end surface 28, and a space 98 which is open at the top and bottom is formed by the wedge-shaped anchor 95 and the end surface 28. The insertion member 20d is fixed in the mold before the flowable material is injected, and when the material is injected, the material flows into the space 98 and solidifies with the other portions. Therefore, while the outer surface 99 of the side plate 97 adheres to the material, the end plate 96 can be engaged with the material injected into the space 98 to further increase the pullout resistance. In this example, although the end plate 96 and the side plate 97 are integrated, they may be separately formed and then joined. In addition, as long as the space 98 is formed and the end plate 96 engaged with the material flowing into this portion is provided, the shape different from FIGS. 22D and 22E can be obtained. As the material of the wedge-shaped anchor 95, any material such as metal and synthetic resin can be used, but a material which easily adheres to the material of the second member is preferable.

  The insertion members 20e and 20f which are the 2nd modification of an insertion member are explained. The insertion members 20 e and 20 f are manufactured by solidifying a fluid material such as concrete by the second member, and are different from the insertion member 20 in that the insertion members 20 e and 20 f include plate-like anchors. By providing the anchor, the pullout resistance of the insertion member can be increased.

  An insertion member 20 e whose side view is shown in FIG. 23 (A) and a plan view is shown in FIG. 23 (B) is provided with a plate anchor 110. The plate-like anchor 110 is a plate-like member having a width substantially equal to the width of the head 23, and one end thereof is connected to the end face 28. Ribs 111 are provided on the outer peripheral surface of the plate anchor 110. The connection between the plate anchor 110 and the end surface 28 can be made by any method such as welding, bonding, bolting and the like. As the material of the plate-like anchor 110, any material such as metal and synthetic resin can be used, but a material that easily adheres to the material of the second member is preferable. With such a configuration, the adhesion between the outer peripheral surface of the plate anchor 110 and the second member and the engagement between the rib 111 and the second member increase the pullout resistance. The shape, the arrangement, and the number of the ribs 111 may be different from those shown in FIGS. 23A and 23B as long as they can be engaged with the second member to increase the pullout resistance. In addition, the rib 111 can be omitted if sufficient adhesion resistance can be obtained only by adhesion.

  An insertion member 20f, a side view of which is shown in FIG. 23C and a plan view of which is shown in FIG. 23D, is provided with a plate-like anchor 112 similar to the insertion member 20e. The plate-like anchor 112 is provided with a plurality of holes 113 of a circular cross section penetrating in the thickness direction. By providing the holes 113, in addition to adhesion, the engagement with the material flowing into the holes 113 can further increase the withdrawal resistance. The cross-sectional shape of the hole 113 may be other than a circle, and the arrangement position and the number thereof may be different from those in FIGS. 23C and 23D.

  In FIGS. 23A to 23D, the insertion member includes the head 23, and the plate anchors 110 and 112 are connected to the head 23. However, the head 23 is omitted and the plate anchors 110 and 112 are omitted. May be directly connected to the support 22 or may be integrally formed. Moreover, the planar shape of the plate-like anchors 110 and 112 can be made into shapes other than a rectangle, and thickness is also arbitrary.

  A modification in which the shape of the engaging portion between the receiving member and the insertion member is a shape other than the right triangle shown in FIGS. 2 and 3 will be described.

  In the example in which the longitudinal cross-sectional view is shown in FIG. 24A, the shapes of the engaging portion 120 of the receiving member 10 and the engaging portion 122 of the insertion member 20 are respectively an isosceles triangle. The inclined engaging surface 120 a of the engaging portion 120 and the inclined engaging surface 122 a of the engaging portion 122 engage with each other. The symmetrical shape of the engaging portion facilitates processing.

  24B, the shape of the engaging portion 125 of the receiving member 10 is an isosceles triangle, and the receiving member 10 is arranged with a space in the axial direction. Then, the shape of the engagement portion 126 of the insertion member 20 is trapezoidal. The inclined engagement surface 125a of the engagement portion 125 and the inclined engagement surface 126a of the engagement portion 126 engage with each other. Thus, the shape of the engaging portion of the receiving member 10 and the shape of the engaging portion of the insertion member 20 may be different.

  In the example in which the longitudinal cross-sectional view is shown in FIG. 24C, the shapes of the engaging portion 127 of the receiving member 10 and the engaging portion 129 of the insertion member 20 are respectively rectangular. An engagement surface 127a perpendicular to the withdrawal direction of the engagement portion 127 and an engagement surface 129a perpendicular to the withdrawal direction of the engagement portion 129 are engaged. Since the engagement surface is perpendicular to the pull-out direction, a large pull-out resistance similar to the example shown in FIG. 5C can be obtained.

  A modification in which the engagement portion between the receiving member and the insertion member is helically continuous will be described. In the receiving member 10p whose longitudinal cross-sectional view is shown in FIG. 25A, the cross-sectional shape of the engaging portion 132 is an isosceles triangle, and is continuously formed in a spiral. That is, a part of the inner surface 14 is processed into a female screw shape. In the receiving member 20q whose longitudinal cross-sectional view is shown in FIG. 25B, the cross-sectional shape of the engaging portion 133 is an isosceles triangle, and is continuously formed in a spiral. That is, a part of the outer peripheral surface 25 is processed into a male screw shape. When the engaging portion is continuously formed in a spiral shape as described above, machining can be extremely easily performed by a lathe or the like. The engagement portion may be in the form of a spiral, either one or both of the receiving member and the insertion member. Although a commercially available insert bolt appears to be applicable when both engaging portions are helical, the interference amount h3 (see FIG. 5A) is almost equal to the distance h4 and a male screw is inserted. It is practically impossible to push it as a component. Therefore, a commercially available insert bolt can not be used as it is as the insertion member and the receiving member of the present invention.

  FIG. 26 shows an example in which the joint 1 of the present invention (including each modification) is applied to a shield construction method for constructing a tunnel in the ground. In the shield method, segments 201 and 202 manufactured in a factory or the like are circumferentially joined to produce a ring 203, and the rings 203 are sequentially connected in an axial direction to construct a tunnel 200. The segment 202 is a segment to be joined last and has a trapezoidal shape. The invention can be advantageously used for the axial joints 204 of the segments which are symbolically indicated by short straight lines in FIG. When a fluid material such as concrete is poured into a mold and solidified to form a member, it is easily attached by fixing the insert member and the receiving member in place before pouring. be able to.

  FIG. 27 shows an example in which the joint 1 of the present invention (including each modification) is applied to a wooden bookcase. The book shelf 210 has a structure in which a top plate 212 and a plurality of shelf plates 213 are disposed between two side plates 211 disposed in the vertical direction. The present invention can be suitably applied to the side plate 211 and the joint 214 of the top plate 212 and the joint 215 of the side plate 211 and the shelf plate 213 which are symbolically shown by short straight lines in FIG. As a method of fixing the insertion member and the receiving member to a member such as wood, for example, a notch having a size that can accommodate the insertion member or the receiving member can be provided, and the insertion member or the receiving member can be fixed by an adhesive or the like. . Alternatively, it is possible to form an oni nut on the outer periphery of the insertion member or the receiving member and drive it into wood or the like.

  FIGS. 28A to 28C are diagrams for explaining modified examples of the receiving member. The receiving member 180 is provided with a storage space 182 of the cylindrical body 184 inside the surrounding body 181, and forms an engagement portion on the inner surface of the cylindrical body 184 stored in the storage space 182. The cylindrical body 184 forms a receiving space linearly expanded in diameter from the bonding surface side to the back side. The anchor 183 is fixed to the surrounding portion 181 by being screwed from the end face side, and the end face of the anchor 183 forms the end face of the receiving space. With such a shape of the receiving member 180, when the insertion member is to be pulled out, a force that squeezes the insertion member 20 in the center acts, so that the pullout resistance is increased. Further, one slit 187 is provided in the axial direction. By providing such a slit, insertion of the insertion member is facilitated. The cylindrical body 184 can be manufactured, for example, by processing a plate-like member into a cylindrical shape. A joint may be provided instead of the slit 187 or in addition to the slit 187.

  In the above embodiment and modification, the receiving member is described as being embedded in the first member in advance, and a part or all of the connecting part of the insertion member is embedded in the second member in advance. It can also be inserted from the end face side opposite to the joint surface of the second member in a state where the joint surfaces of both members are in contact without being embedded in the member. Such an embodiment will be described below.

  The example shown in FIG. 29A is an embodiment in which the receiving member 10 is not embedded in the first member. The receiving member 10 has the same shape as that shown in FIG. In this embodiment, without embedding the receiving member 10 in the member to be joined, ie, the first member 103, the end face in which the opening 15 is formed is brought into contact with the surface 103c opposed to the bonding surface 103a of the first member 103. In the state, the first member 103 is disposed exposed to the outside. The insert 20 is similar in shape to that shown in FIG. 3, but the head 410 is thin. The first member 103 and the second member 104 are respectively provided with holes 103 b and 104 b through which the insertion member 20 can pass.

  In the bonding procedure in this embodiment, first, as shown in FIG. 29A, the first member 103 and the second member 104 are bonded to the bonding surface 103 a so that the positions of the hole 103 b and the hole 104 b coincide with each other. It arrange | positions so that the surface 104a may contact | abut. The receiving member 10 may be fixed to the first member 103 in advance, or may be temporarily fixed at the time of bonding. In this state, the insertion member 20 is inserted into the receiving member 10 through the hole 103b and the hole 104b from the side of the end surface 104c opposite to the bonding surface of the second member.

  The example shown in FIG. 29B is an embodiment in which the receiving member 10 is embedded in the first member in advance. The receiving member 10 has the same shape as that shown in FIG. In this embodiment, the receiving member 10 is embedded in the first member 103 as in the first embodiment and the like. The insert 20 is similar in shape to that shown in FIG. 3, but the head 410 is thin. The first member 103 and the second member 104 are respectively provided with holes 103 b and 104 b through which the insertion member 20 can pass. The bonding procedure of this embodiment is the same as that of FIG. 29 (A).

  Moreover, there is no limitation in the material of the 1st member which applies the coupling of each embodiment, and a 2nd member, and a shape, and if it joins and makes joint surfaces contact, it applies to any member. Can. As a material of a 1st member and a 2nd member, it is applicable to concrete, ceramics, a metal, a synthetic resin, a wood etc., for example. As a shape of a 1st member and a 2nd member, it is applicable to joining of the same kind of members, such as plate shape, columnar shape, and a block shape, or a different kind of member, for example. In addition to the shield segments and bookshelves illustrated in FIGS. 20 and 21, the present invention can be applied to all articles such as precast concrete members in general, furniture in general, construction materials, housing frame materials, various machines and the like.

  The joint member for a precast concrete product in the present invention includes a receiving member embedded in a first member which is a concrete product by precast, and an insertion member embedded in a second member which is a concrete product by precast. The joint members in the present invention are used to join precast concrete products mainly used for shield tunnel segments.

  Here, in the receiving member 180 shown in FIGS. 28A to 28C, the cylindrical body 184 in which the slit 187 is provided in the axial direction is used as the receiving engagement portion in the storage space 182 inside the surrounding body 181. However, the receiving and engaging portion of the receiving member expands the diameter of the engaging portion by elastically pressing the engaging portion including the divided core divided into a plurality of parts in the circumferential direction and the plurality of divided cores. The resilient member which can be positionally restricted can be accommodated and installed in the engagement portion receiving space of the enclosure.

  Next, a receiving member using a split core will be described.

  30 to 43 are diagrams for explaining modified examples of the receiving member in which the split core is used.

  FIG. 30 is a longitudinal cross-sectional view of the receiving member 300 attached to the anchor 330. The receiving member 300 comprises a separately formed enclosure 310 and a receiving engagement 320.

  The surrounding portion 310 is configured such that the anchor 330 is detachably screw-engaged with the end on the back side. The anchor 330 has an externally threaded end portion 331, as shown in the longitudinal sectional view of FIG. 31 (A). The anchor 330 is fixed to the surrounding portion 310 by being screwed from the end face side, and the end face 331A of the anchor 330 forms the end face of the engagement portion receiving space 311. Ribs 332 are provided on the outer peripheral surface of the anchor 330. Also, a recess 333 is provided at the distal end of the anchor 330 so as to secure a space for accommodating the distal end of the insertion member 340 inserted into the receiving member 300.

  Incidentally, instead of providing the recess 333 at the distal end of the anchor 330, a sleeve member is interposed between the distal end of the anchor 330 and the receiving engagement portion 320, and the distal end of the insertion member 340 is accommodated by the sleeve member. You may secure a space for Also, the sleeve member can be integral with the receiving and engaging portion 320.

  As shown in the longitudinal cross-sectional view of FIG. 31C, the surrounding portion 310 is formed of a cylindrical body forming a cylindrical engaging portion receiving space 311 having a diameter Db larger than the outer diameter Da of the receiving engaging portion 320. Thus, the receiving and engaging portion 320 shown in the longitudinal sectional view of FIG. 31B can be accommodated in the engaging portion receiving space 311.

  The surrounding portion 310 is smaller than the outer diameter Da of the receiving and engaging portion 320, and an opening 312 having a diameter Dd larger than the outer diameter Dc of the inserting and engaging portion 341A of the insertion member 340 shown in the longitudinal sectional view of FIG. The inward flange portion 313 thus provided is provided at the other end, and the insertion engagement portion 341A of the insertion member 340 can be inserted into the engagement portion receiving space 311 through the opening portion 312.

  The inward flange portion 313 is provided perpendicularly to the peripheral wall of the surrounding portion 310, but stress concentrates on the corner portion where the corner portion continuous with the peripheral wall is erected at a right angle, so the corner portion is continuous in a curved surface Thus, the stress concentrated on the corner portion is dispersed to improve the durability. Of course, the present invention is not limited to this, and the inward flange portion 313 may be formed in a tapered shape so that the inner circumferential surface has a substantially conical or funnel shape.

  The opening portion 312 of the surrounding portion 310 is formed in a circular shape centered on the axial center position of the anchor 330 and the surrounding portion 310 connected by screwing, and the axial center position of the insertion member 340 to be inserted is shifted. The guide member 313 has a conical guide surface 313A for guiding the distal end of the insertion member 340 in the center direction.

  Also, in the inward flange portion 313, as shown in FIG. 33, an engagement concave portion 315 into which a tool for screwing the surrounding portion 310 coupled by screwing to the anchor 330 can be opened is opened. It is radially formed from the portion 312 toward the outer periphery. The engagement concave portion 315 is communicated with the outer peripheral edge to prevent the flow into the engagement concave portion 315 when the green concrete flows in the mold at the time of embedding the surrounding portion 310 and the like in concrete. It may be a groove or a hole which is not formed.

  Furthermore, the surrounding portion 310 is formed in a tapered shape so that the outer peripheral surface decreases in diameter from the front end side to the rear end side. That is, the surrounding portion 310 is formed so as to gradually increase in diameter along the axial direction from the anchor 330 side.

  As shown in FIG. 32, the insertion member 340 is integrated with the insertion portion 341 inserted into the insertion portion receiving space 321B (see FIG. 34) of the receiving member 300 shown in FIG. A connecting portion 342 is provided. The insertion portion 341 is provided with an insertion engagement portion 341A having an engagement surface which is perpendicular to the axial direction on the outer peripheral surface and an engagement surface portion in which an inclined surface which is inclined to decrease in diameter toward the tip end is repeatedly formed. It is done.

  The tip of the insertion portion 341 is processed into a truncated cone shape having an inclined surface 343 for insertion guide, and further, a hole 344 into which a hexagonal wrench, for example, a tool for screwing the insertion member 340 is inserted It is provided at the center of the tip. Of course, the insertion portion 341 and the connecting portion 342 may be integrally formed into one member or separately formed and integrally provided by welding or the like. A rib 342A is provided on the outer peripheral surface of the connecting portion 342.

  As shown in the cross sectional view of FIG. 34, the receiving and engaging portion 320 is integrally formed by resiliently pressing the outer peripheral side of the three divided cores 321 each having a fan-shaped cross section by the winding spring 322 and restricting the position. It consists of a cylindrical body with a substantially cylindrical shape. Of course, needless to say, the resilient pressing force by the winding spring 322 may be generated only when the position-controlled three divided cores 321 are expanded in diameter and the relative position changes. .

  The wound spring 322 is formed in a substantially cylindrical shape having an inner diameter smaller than the outer diameter of a cylinder formed by arranging three divided cores 321 in the circumferential direction, and in the state where the diameter is enlarged against the elastic force By storing and arranging the divided cores 321, the three divided cores 321 are arranged in a wound state. When the resilient biasing force is applied only at the time of diameter expansion, the outer diameters of the three split cores 321 and the outer diameter of the winding spring 322 may be set to be substantially equal.

  For example, as shown in the end view of FIG. 35 (A) and the side view of FIG. 35 (B), the winding spring 322 curves the plate-like spring material into a cylindrical shape so that the side edges overlap. And has a locking piece 322A in which one side edge is bent inward. When the side edges of the wound spring 322 are overlapped when wound around the split core 321, the diameter of the gap becomes different, and the balance of the pressing force acting on the outer periphery of the split core 321 is deteriorated. Therefore, the winding spring 322 is expanded in diameter in the state of being wound around the split core 321 as shown in FIG. 34 so that the end portions do not overlap.

  The three split cores 321 on which the winding spring 322 is wound are elastically pressed at the outer peripheral side in a state of being positionally restricted in the circumferential direction by the locking pieces 322A and positionally restricted. On the other hand, the receiving and engaging portion 320 is formed of a substantially cylindrical tubular body integrated so as to be able to expand in diameter.

  Here, as shown in the end view of FIG. 36 (A) and the cross-sectional view of FIG. 36 (B), the three split cores 321 constituting the receiving and engaging portion 320 basically have a central angle of about 120. The cylinder has a cross-sectional shape of a fan-like shape, and is a configuration in which the cylinder is divided into three in the circumferential direction, but it is not limited to this. Even if it is divided into two, it is divided into four or more It is also good. The side surfaces of the split core 321 in the circumferential direction are cut by the thickness t of the locking piece 322A.

  The scraping amount corresponding to the thickness t of the locking piece 322A is scraped by only one of the three divided cores 321 in the receiving and engaging portion 320 shown in FIG. The central angles may be made to coincide by equally dividing the amount of reduction corresponding to the thickness t and cutting all three divided cores 321.

  When using a locking piece 322A in which a plate-like spring material is bent along the entire length of the side edge, it is necessary to make the central angle of at least one of the three split cores 321 smaller than 120 °. However, if the locking piece 322A is formed by bending a part of the entire length of the side edge of the plate-like spring material, the position regulating function in the circumferential direction by the locking piece 322A can be secured. In this case, a groove corresponding to the locking piece 322A may be formed in at least one or more of the split cores 321, and all of the three split cores 321 have a fan-shaped cross section having a basic central angle of 120 °. It can be done. Of course, the locking piece 322A at the circumferential end of the winding spring 322 is not necessarily provided, and if not provided, the arrangement of the split core relative to the winding spring 322 can not be phased, but The central angle can also be set to 120 °.

  The inner peripheral surface of the cylindrical body of the receiving and engaging portion 320 formed of a cylindrical tubular body constituted by three divided cores 321 wound with the winding spring 322 has the outer shape of the insertion engaging portion 341 of the insertion member 340. It has an accommodating space 321B which is a matching engagement surface 321A and is surrounded by the engagement surface 321A. The three split cores 321 have an engagement surface perpendicular to the axial direction, which becomes the engagement surface portion 321A, in the surface corresponding to the inner peripheral surface of the cylinder, and the diameter decreases from the joint surface side toward the back side An inclined surface which is inclined as described above is repeatedly formed.

  The surrounding portion 310 is screwed to the anchor 330 in a state where the receiving and engaging portion 320 is accommodated in the engaging portion receiving space 311 as shown in FIG.

  The receiving and engaging portion 320 is disposed in the engaging portion receiving space 311 so as to be movable or eccentrically by being accommodated in a cylindrical engaging portion receiving space 311 having a diameter Db larger than its outer diameter Da. Be done.

  Then, the receiving and engaging portion 320 guides the axial center of the receiving and engaging portion 320 to the opening 320A in which the insertion portion 341 of the insertion member 340 is inserted so as to coincide with the axial center of the insertion portion 341 to be inserted. There is a guide surface having a diameter decreasing toward the insertion direction for centering guide, and insertion of the insertion portion 341 causes the axial center of the insertion portion 341 and the axial center of the receiving engagement portion 320 to coincide spontaneously and insert The insertion position error of the member 340 can be absorbed. Here, the guide surface of the opening 320A is provided so as to form a conical inclined surface 320B which decreases in diameter along the direction of insertion, but is not particularly limited. It may be made.

  In the inclined surface 320 B provided in the opening 320 A of the receiving and engaging portion 320, the axial center position of the insertion member 340 inserted into the engaging portion receiving space 311 via the opening 312 of the surrounding portion 310 corresponds to the anchor 330. When the distal end portion of the insertion member 340 is inserted into the opening 320A of the receiving and engaging portion 320 in the eccentric state out of the axial center position, the receiving and engaging portion 320 is moved, and the inserting member 340 It functions as a guide for aligning the opening position of the inserted receiving engagement portion 320 with the axial center position of the insertion member 340

  Further, the receiving and engaging portion 320 in the receiving member 300 is entirely covered with an anticorrosion film 325 which can be broken by the insertion of the insertion member 340, whereby the anticorrosion treatment is performed.

  Here, in the steel receiving and engaging portion 320, when moisture in the air comes in contact with the surface, an electrical reaction starts with air dissolved in the moisture, and iron is gradually ionized and dissolved in the moisture. After that, the ionized iron is combined with hydroxide ions in the moisture to become iron hydroxide and appear as rust on the surface of the metal, which may deteriorate the durability.

  In particular, there is a risk that deterioration due to rust may progress when stored in a field condition, but the receiving engagement portion 320 is subjected to an anticorrosion treatment to prevent deterioration due to rust. Durability performance can be secured.

  Instead of covering the whole with the anticorrosion film 325, the receptive engagement portion 320 may be coated with anticorrosion paint, and at least the engagement surface portion 321A of the receptive engagement portion 320 is subjected to anticorrosion treatment By setting, the deterioration of the receiving and engaging portion 320 due to rust can be effectively prevented, and the original durability can be ensured.

  In addition, as a sealing member for closing the opening portion 312 of the surrounding portion 310, by arranging a waterproof member such as a seal, a cap or the like on the inner side and / or the outer side of the opening portion 312, watertightness and waterproofness are provided. May be secured.

  Here, as shown in FIG. 37A, the insertion member 340 is inserted into the opening portion 312 formed in the inward flange portion 313 of the surrounding portion 310 integrated with the anchor 330 by screwing. 37B is inserted into the engaging portion receiving space 311 in the surrounding portion 310 through the opening 312, as shown in FIG. 37B, the engaging portion receiving space 311 of the surrounding portion 310. The anticorrosion film 325 covering the receiving and engaging portion 320 housed inside is pierced and inserted into the insertion portion receiving space 321 B of the receiving and engaging portion 320.

  As described above, the receiving and engaging portion 320 in the receiving member 300 is integrated so as to be able to expand in diameter against the elastic force of the winding spring 322 by the three split cores 321 around which the winding spring 322 is wound. Since the cylindrical portion is formed as a cylindrical body, the distal end of the insertion portion 341 of the insertion member 340 is expanded by being inserted into the insertion portion receiving space 321B of the receiving and engaging portion 320. That is, the tip of the insertion portion 341 of the insertion member 340 is inserted into the receiving engagement portion 320 of the three split core divided cores 321 whose position is restricted by the resilient tightening force by the elastic force of the winding spring 322. When being inserted into the portion receiving space 321B, the three split cores 321A are configured as described above by the engagement surface portion on the engagement portion side of the reception engagement portion 320 interfering with the engagement surface portion on the insertion member 340 side. It moves against the elastic tightening force by the elastic force of the winding spring 322 and is in a state of diameter expansion, and the apex of the engagement surface on the insertion member 340 side is the engagement surface on the reception engagement portion 320 Interference with the engaging surface portion on the insertion member 340 side is released, and the three split cores 321A are caused by the elastic force of the winding spring 322. Resilient tightening power Resilient force back It becomes reduced diameter state. As a result, as shown in FIG. 38, the distal end of the insertion portion 341 of the insertion member 340 can be easily inserted to an end position deep in the insertion portion receiving space 321B with an extremely small insertion load (eg, 0.3 kN or less) it can.

  In the insertion portion 341 of the insertion member 340 whose distal end is inserted to the end position of the insertion portion reception space 321B, the outer peripheral surface of the reception engagement portion 320 is elastically restricted by the elastic force of the winding spring 322. By the diameter reduction state, the insertion engagement portion 341A reliably engages with the engagement surface portion 321A of the reception engagement portion 320.

  The tip of the insertion portion 341 of the insertion member 340 is inserted into the insertion portion reception space 321B of the reception engagement portion 320 stored in the engagement portion reception space 311 of the surrounding portion 310, and the anticorrosion film 325 is broken. Since it is covered with the anticorrosion film 325 up to the above, deterioration due to rust does not occur during the storage period, and predetermined durability can be exhibited.

  The opening 312 formed in the inward flange 313 of the surrounding portion 310 has a conical guide surface 313A, and the diameter of the tip of the insertion portion 341 of the insertion member 340 is reduced. Since the conical inclined surface 343 is provided, the inward direction of the surrounding portion 310 integrated with the anchor 330 by screwing the tip end of the insertion portion 341 of the insertion member 340 integrated with the connecting portion 342 by screwing. When the axial center of the insertion portion 341 is out of the center of the opening portion 312 when inserted into the opening portion 312 formed in the flange portion 313, the insertion portion is provided at the tip of the insertion portion 341 of the insertion member 340 The inclined surface 343 is guided by the guide surface 313A of the opening 312 on the inward flange portion 313 side. Therefore, the tip of the insertion portion 341 of the insertion member 340 can be easily inserted into the opening 312 on the inward flange portion 313 side.

  Furthermore, in the insertion portion receiving space 321B of the surrounding portion 310 in which the tip end of the insertion portion 341 of the insertion member 340 is inserted through the opening portion 312 on the inward flange portion 313 side, the receiving engagement portion 320 is in the radial direction. Since it is provided movable or eccentrically, and is provided on the conical inclined surface 320B at the opening 320A of the receiving engagement portion 320, the tip of the insertion member 340 to the opening 320A of the receiving engagement portion 320 The conical inclined surface 320B is guided to the opening 320A of the receiving / engaging portion 320 by the inclined surface 343 provided at the tip of the insertion portion 341 of the insertion member 340 with the insertion of the part, and the diameter of the receiving / engaging portion 320 The position of the opening of the receiving and engaging portion 320 where the insertion member 340 is inserted can be made to coincide with the axial position of the insertion member 340 by automatically moving in the direction.

  That is, since the receiving member 300 has an inner circumferential surface of rotational symmetry with respect to the axial center of the insertion member 340 inserted into the receiving engagement portion 320, the receiving member 300 has a radial direction from the axial center position of the anchor 330. In any orientation, the insertion of the insertion member 340 has a self-centering function of aligning the axial center of the insertion member 340 with the axial center of the receiving engagement portion 320.

  The insertion member 340 is shown in FIG. 39 when it is inserted into the storage space 311 via the opening portion 312 of the surrounding portion 310 in a state where the axis S1 position coincides with the axis S2 position of the anchor 330. As described above, the insertion is completed in a state in which the receiving and engaging portion 320 is automatically aligned to a position having an equal space around the periphery in the storage space 311. When the insertion is completed, the distal end of the insertion member 340 inserted into the receiving member 300 is accommodated in the space secured by the recess 333 provided at the distal end of the anchor 330.

  Also, as shown in FIG. 40A and FIG. 40B, with the position of the axial center S1 of the insertion member 340 deviated from the axial center S2 position of the anchor 330, through the opening 312 of the surrounding portion 310. When inserted into the storage space 311, as shown in FIG. 41 (B), the opening position of the receiving engagement portion 320 is made to coincide with the axial center position of the inserted insertion member 340, and the engagement portion Insertion is completed in a state in which the receiving and engaging portion 320 is automatically aligned to a position state having an uneven space around the inside of the storage space 311.

  In FIGS. 40A, 40B, and 41B, there is a state where the axial center S1 position of the insertion member 340 deviates below the axial center S2 position of the anchor 330 on the paper surface. It is shown.

  FIG. 41A shows the insertion completed state in the case where the axial center S1 position of the insertion member 340 is deviated to the upper side of the axial center S2 position of the anchor 330 on the paper surface.

  Accordingly, even when the axial center S1 position of the insertion member 340 inserted into the storage space 311 through the opening of the surrounding portion 310 is in an eccentric state deviated from the axial center S2 position of the anchor 330, The insertion member 340 can be easily inserted into the insertion portion receiving space 321 B of the receiving engagement portion 320 housed in the engaging portion receiving space 311.

  By the way, the surrounding portion 310 in the receiving member 300 engages the tool in the inward flange portion 313 and the engagement concave portion 315 radially formed from the opening portion 312 to the outer periphery, and the axial center of the anchor 330 is obtained. By rotating the surrounding portion 310 in the forward direction, it can be screwed into engagement with the anchor 330.

  Further, in a state where the receiving and engaging portion 320 is accommodated in the engaging portion receiving space 311, the surrounding portion 310 screwed to the anchor 330 engages a tool to the engaging concave portion 315 and the shaft of the anchor 330 It is also possible to unscrew and remove from the anchor 330 by rotating the surrounding portion 310 in a reverse direction.

  When the receiving member 300 is used, the surrounding portion 310 connected by screwing to the anchor 330 is embedded in the concrete body by the precast together with the anchor 330 while the receiving engaging portion 320 is accommodated in the engaging portion receiving space 311. Be done.

  In the construction site or factory, after the receiving member 300 is embedded together with the anchor 330, the receiving engaging portion 320 stored in the engaging portion receiving space 311 of the surrounding portion 310 is damaged or disposed in the opposite direction. As shown in FIG. 42, the inward flange portion 313 having the opening portion 312 for inserting the insertion member 340 is also before the completion of the insertion of the insertion member 340 even when a defect such as the case of having been detected is found. In addition, since the outer surface is exposed, it is possible to stop the insertion operation of the insertion member 340, remove the receiving member 300 from the anchor 330, replace the receiving engagement portion 320, or the like.

  In addition, the surrounding portion 310 of the receiving member 300 has a tapered outer peripheral surface 310A in which the outer diameter of the end on the inward flange portion 313 side is larger than the outer diameter of the end on the opposite side to the inward flange portion 313. Therefore, even after implantation, it can be easily removed from the anchor 330 by rotating the surrounding portion 310 in the opposite direction about the axis of the anchor 330 using the tool 500. .

  In this manner, the surrounding portion 310 is exposed to the outside surface of the inward flange portion 313 exposed in a state of being screwed and embedded in the anchor 330 in a state in which the receiving engagement portion is accommodated in the engagement portion receiving space 311. There is an engagement recess for unlocking into which the tool 500 for screwing the surrounding portion 310 can be inserted, and the outer diameter on the inward flange portion 313 side than the outer diameter on the opposite side to the inward flange portion 313 By having the tapered outer circumferential surface 310A having a large diameter, the tool 500 can be easily screwed off and can be removed from the anchor 330 even in a state of being screwed and embedded in the anchor 330.

  It should be noted that, instead of the radially-formed engagement concave portions 315, a plurality of engagement concave portions are concentrically distributed around the opening portion 312 of the inward flange portion 313 in a radial direction. It is also good. Further, instead of the engagement concave portions, concave portions of various shapes adapted to the tool such as grooves or round holes may be provided.

  FIGS. 43 and 44 are diagrams for explaining modified examples of the receiving member provided with the anchor. The receiving member 400 shown in FIG. 43 includes a separately formed surrounding portion 410 and a receiving engagement portion 420. The surrounding portion 410 is formed of a cylinder forming an engagement portion receiving space 411 for accommodating the engagement portion 420. The surrounding portion 410 is detachably connected to an anchor 430 screwed at one end portion 431 at an end portion on the back side by screwing. The anchor 430 is fixed to the surrounding portion 410 by being screwed from the end face side, and the end face 431A of the anchor 430 forms the end face of the engagement portion receiving space 411.

  The surrounding portion 410 is provided at an end on the front side with an inward flange portion 413 formed with an opening 412 into which the insertion member 440 is inserted, and is inserted into the engaging portion receiving space 411 communicating with the opening 412 The insertion portion 441 of the member 440 can be inserted.

  The inward flange portion 413 is provided perpendicularly to the peripheral wall of the surrounding portion 410, but since stress concentrates on the corner portion where the corner portion continuous with the peripheral wall is erected at a right angle, the corner portion is made continuous with a curved surface Thus, the stress concentrated on the corner may be dispersed to improve the durability.

  Here, the insertion member 440 is a member similar to that shown in FIG. 3, and the insertion portion 441 to be inserted into the insertion portion receiving space 421B of the receiving member 400 and the support portion of the circular cross section following the insertion portion 441 And 442 and a head 443 having a circular cross section larger than the support 442. The insertion portion 441 is a circular cross section having substantially the same diameter as the support portion 442, and an engagement surface perpendicular to the axial direction and an inclined surface inclined so as to decrease in diameter toward the tip end are repeatedly formed on the outer peripheral surface. An insertion engaging portion 441A having an engaging surface portion is provided.

  As shown in FIG. 44, the receiving and engaging portion 420 in the receiving member 400 has an engaging portion 421 having a tapered outer peripheral surface, and a tapered inner peripheral surface matching the outer peripheral surface of the engaging portion 421. It comprises a cylindrical body 422 and a resilient member 423 which resiliently presses.

  The engaging portion 421 is constituted by a plurality of divided cores 421A obtained by axially dividing a cylindrical body having a tapered outer peripheral surface.

  Specifically, the insertion member 440 is formed of three divided cores 421A in which a cylindrical member having a frusto-conical outer shape is divided into three in the axial direction, from the small diameter outer end to the large diameter outer end. The inner peripheral surface forming the insertion portion receiving space 421B to be inserted is an engagement surface portion, and is configured to form a frusto-conical outer shape.

  The cylindrical body 422 has a cylindrical outer peripheral surface, and the inner peripheral side is formed in the receiving space 422A formed by a frusto-conical inner peripheral surface that matches the outer peripheral surface of the engaging portion 421. It is configured to be able to accommodate

  The resilient member 423 is disposed at the large diameter outer peripheral end of the engaging portion 421 housed in the receiving space 422A of the cylindrical body 422, and the engaging portion 421 is from the large diameter outer peripheral end It resiliently presses toward the end of the small diameter outer peripheral side.

  Although a slitted disc washer is used for the resilient member 423, it is not limited to this.

  The receiving and engaging portion 420 accommodates the cylindrical body 422 in the engaging portion receiving space 411 of the surrounding portion 410, and the three divided cores are formed in the receiving space 422A formed by the inner peripheral surface of the cylindrical body 422. In a state in which the engagement portion 421 having a frusto-conical outer shape is configured by storing and disposing 421A, and the disc washer with a slit is disposed as the elastic member 423 on the end side of the large diameter outer peripheral side of the engagement portion 421 The anchor 430 is screwed to the surrounding portion 410 from the open end surface side, and thus, the engaging portion receiving space 411 of the surrounding portion 410 is installed.

  The receiving and engaging portion 420 installed in the engaging portion receiving space 411 of the surrounding portion 410 is slit as a resilient member 423 by the peripheral portion of the end surface 431A of the anchor 430 forming the end surface of the engaging portion receiving space 411 The peripheral edge portion of the disc washer is pressed from the end portion side of the large diameter outer peripheral side of the engagement portion 421 toward the end portion side of the small diameter outer peripheral side, and the resilient force of the resilient member 423 The three split cores 421A are held in a state where the outer peripheral surface of the engaging portion 421 is in close contact with the inner peripheral surface of the cylindrical body 422 by the resilient pressing of the joint portion 421.

  When the insertion member 440 is inserted into the receiving and engaging portion 420, the three split cores 421A, which are elastically positionally restricted by the elastic force of the elastic member 423, are engaged with the engaging and engaging portion 420. The three split cores 421A resist the elastic force of the elastic member 423 by the engagement surface on the joint side interfering with the engagement surface on the insertion member 440 side. The outer circumferential surface of the engaging portion 421 is expanded while being in sliding contact with the inner circumferential surface of the cylindrical body 422.

  When the vertex of the engaging surface portion 441A on the inserting member 440 side exceeds the vertex of the engaging surface portion 421A on the receiving engaging portion 420 side, the engaging surface portion 421A on the receiving engaging portion 420 is the engaging surface portion 441A on the inserting member 440 side. As a result, the three split cores 421A are simultaneously returned to the small diameter outer end side of the engagement portion 420 by the elastic force of the elastic member 423 and are reduced in diameter.

  In the insertion portion 441 of the insertion member 440, the apex of the engagement surface portion 441A is successively inserted beyond the apex of the engagement surface portion 421A on the reception engagement portion 420 side and is connected to the reception engagement portion 420 Ru.

  Reference Signs List 1 joint, 10, 10a to 10p receiving member, 13 receiving space, 15 opening, 16, 120, 125, 127 (of receiving member) engaging portion, 20, 20a to 20g inserting member, 21 embedded portion, 24 inserting portion 26, 122, 126, 129 (insertion members) engaging portions 30, 32, 34 deformation allowing members 40, 43 inclined washers 44 washers 45 guide portions 50 convex portions Ex.) 60, 61, 62, 90, 91, anchor, 65, 95 wedge shaped anchor, 72, 75, 110, 112 plate shaped anchor, 73, 111 rib, 76, 113 hole, 80 joint surface reinforcing member, 132 , 133 Helical engagement portion, 300, 400 receiving member, 310, 410 surrounding portion, 310A outer peripheral surface of surrounding portion, 311, 411 engaging portion receiving space , 312, 412 surrounding opening, 313, 413 inward flange, 313A guiding surface, 315 engaging recess, 320, 420 receiving engagement, 320A opening for receiving engagement, 320B inclined surface, 321, 421A split core, 321A engagement surface portion, 321B insertion portion receiving space, 322, 423 winding spring (elastic member), 322A locking piece, 325 rustproof film, 330, 430 anchor, 333 recess, 340, 440 insertion Member, 341, 441 insertion portion, 341A, 441A insertion engagement portion, 343 inclined surface, 422A reception space, 421 engagement portion, 421B insertion portion reception space, 422 cylindrical body

Claims (44)

A receiving member, and an insertion member inserted into the receiving member;
The receiving member has an opening, a receiving space in communication with the opening, a surrounding portion having an outer surface surrounding the receiving space by the inner side, and a receiving engagement portion provided inside the surrounding portion. And
The insertion member has an insertion portion to be inserted into the receiving space, a connecting portion provided in series in the insertion portion, and an insertion engagement portion provided outside the insertion portion.
The receiving engagement portion and the insertion engagement portion are set to have a predetermined interference amount in a direction substantially perpendicular to the insertion direction,
When the insertion member is inserted into the reception member, the reception member and / or the reception engagement portion and / or the insertion engagement portion is elastically deformed and / or plastically deformed to insert the insertion member. Possible,
A joining means characterized in that the receiving engagement portion and the insertion engagement portion are engaged when the insertion member is inserted to a predetermined position.   The receiving engagement portion and the insertion engagement portion each have an engagement surface substantially perpendicular to the extraction direction of the insertion member, and the substantially perpendicular engagement surfaces are engaged with each other. The joining means according to claim 1.   The receiving and engaging portion has the substantially vertical engaging surface on the back side, and the section has a substantially right triangle shape, and the inserting and engaging portion has the substantially vertical engaging surface on the joint surface side. 3. A bonding means according to claim 2, characterized in that it forms a substantially right triangle.   The joining means according to any one of claims 1 to 3, wherein the surrounding portion has a substantially cylindrical shape.   The said receiving member has a deformation | transformation allowance part provided in the corresponding | compatible site | part of the range in which the at least said receiving engaging part of the said outer surface of the said surrounding part is provided, The 1st aspect any one The junction means described in the section.   The joining means according to claim 5, wherein the deformation allowing portion has a hollow portion.   The joining means according to claim 5, wherein the deformation allowing portion is shaped to generate a gap between an inner surface of the deformation allowing portion and an outer surface of the surrounding portion.   The joining means according to any one of claims 1 to 7, wherein the receiving and engaging portion is formed separately from the surrounding portion and is fixed to the surrounding portion.   9. The joining means according to claim 8, wherein the receiving and engaging portion is constituted by one or more washer-like members.   The joining means according to claim 9, wherein the receiving and engaging portion is configured by overlapping two or more washer-like members.   The joining means according to claim 9 or 10, wherein the opening of the washer-like member is inclined so as to decrease in diameter from the joining surface side toward the back side.   12. The washer-shaped member is elastically and / or plastically deformed so as to warp toward the back side when the insertion member is inserted, according to any one of claims 9 to 11. Bonding means as described. 13. The bonding means according to any one of claims 1 to 12, wherein the receiving and engaging portion is constituted by one or more cylindrical and / or coiled members. The joining means according to claim 13, characterized in that the receiving and engaging portion is constituted by one or more cylindrical and / or coiled members and has a slit and / or a seam.   The receiving member is characterized by being provided with a withdrawal preventing mechanism for preventing the receiving member from coming out of the joined body in a joined state with the insertion member for joining the bodies to be joined. 15. A bonding means as claimed in any one of the preceding claims.   The receiving member includes an end member connected to the back end of the surrounding portion, and the surrounding portion and the end member are separate members. Bonding means described in Item 1 below.   17. A bonding means according to any of the preceding claims, wherein the receiving member and / or the insertion member is provided with an anchor.   The joining means according to claim 17, wherein the anchor is one or more of rod-like, bowl-like, bowl-like, plate-like, tubular, coil-like, mesh-like.   The inner surface on the back side of the surrounding portion is in the form of a female screw, one end of the anchor is screwed to the rear side of the surrounding portion, and one end surface of the anchor forms the end surface on the back side of the receiving space The joining means according to claim 17, characterized in that.   The anchor is characterized in that it has at least one of a hole portion, an uneven portion, a curved portion, a rib, a groove, a head, a flange portion, an enlarged diameter portion or a large diameter portion, a reduced diameter portion or a small diameter portion. The joining means according to claim 17.   The joining means according to claim 17, wherein the insertion member has a buried portion provided in series in the insertion portion, and the buried portion doubles as the anchor.   18. The bonding means according to claim 17, wherein the receiving member has a buried portion provided in series on the receiving member, and the buried portion doubles as the anchor.   23. A bonding means according to any of the preceding claims, wherein the receiving member comprises a bonding surface reinforcing member for reinforcing a bonding surface. The receiving member is embedded in the first member in advance.
24. The bonding means according to any one of claims 1 to 23, wherein a part or all of the connecting part of the insertion member is embedded in the second member in advance. The receiving member is embedded in the first member in advance.
The joining means according to any one of claims 1 to 23, wherein the insertion member is inserted into the receiving member through a through hole provided in the second member. The receiving member is exposed at an end face of the second member facing the joint surface, and the end face having the opening is disposed to abut on the opposite end face.
The said insertion part penetrates the through-hole provided in the 1st member, and the through-hole provided in the said 2nd member, and is inserted in the said receiving member, The said insertion part is characterized by the above-mentioned. Bonding means described in Item 1 below. The receiving member is
Comprising the surrounding portion and the receiving and engaging portion separately formed;
The surrounding portion has an engaging portion receiving space in communication with an opening into which the insertion member is inserted,
The receiving engagement portion comprises an engagement portion having an engagement surface,
The joining means according to any one of claims 1 to 4, wherein the engaging portion is displaceably accommodated in the receiving space.   28. The bonding means according to claim 27, wherein the engaging portion comprises a plurality of divided cores axially divided.   29. The joining means according to claim 28, further comprising biasing means for radially restraining the position of the engagement portion by biasing the plurality of divided cores in the radial direction and / or the axial direction.   30. The bonding means according to claim 29, wherein the biasing means is configured to bias and hold the plurality of divided cores in a tubular shape. The receiving engagement portion is
It has a cylindrical body that accommodates the engaging portion in an engaging portion receiving space formed by a frusto-conical inner peripheral surface that matches the outer peripheral surface of the engaging portion,
The engaging portion has a frusto-conical external shape with the inner peripheral surface forming the insertion portion receiving space into which the insertion member is inserted from the small diameter end toward the large diameter end. And the plurality of divided cores divided in the axial direction,
The biasing means is disposed on the large diameter end portion side of the engagement portion stored in the engagement portion receiving space of the cylindrical body, and the engagement portion is moved from the large diameter end portion side to the small diameter end portion side The joining means according to claim 29 or 30, characterized in that the position of the engaging portion is regulated so as to be able to expand the diameter by resiliently pressing it toward it.   32. A joining means according to claim 31, wherein said biasing means is a slitted disc washer. The surrounding portion has the engaging portion receiving space having a diameter capable of eccentrically accommodating the receiving engaging portion radially by a predetermined eccentric gap amount, and the outer diameter of the insertion engaging portion of the insertion member It has an inward flange portion having a larger diameter and an opening smaller than the outer diameter of the receiving and engaging portion,
The receiving and engaging portion guides a centering guide of the receiving and engaging portion so as to coincide with the axial center of the insertion member inserted into the insertion opening into the opening into which the insertion member is inserted Have an inclined surface for
The joining means according to any one of claims 27 to 32, characterized in that it has a self-centering function of aligning the axis of the insertion member with the axis of the receiving and engaging portion by the insertion of the insertion member. .   The surrounding portion is screwed to the outer surface of the inward flange portion exposed in a state of being screwed and embedded in the anchor in a state in which the receiving and engaging portion is stored in the engaging portion receiving space. 34. Joining means according to claim 33, characterized in that it has an engagement recess for unlocking into which a tool for advancing can be inserted.   35. The bonding means according to claim 34, wherein the surrounding portion has a tapered outer peripheral surface in which the outer diameter of the inward flange portion is larger than the outer diameter of the opposite side to the inward flange portion.   36. The bonding means according to any one of claims 1 to 35, wherein the receiving member is waterproofed to protect at least the engagement surface portion of the receiving and engaging portion.   37. The bonding means according to claim 36, wherein a waterproofing treatment by a waterproof paint film which can be peeled off by the insertion of the insertion member is applied to the engaging surface portion of the receiving and engaging portion.   37. A bonding means according to claim 36, characterized in that it is waterproofed by means of a waterproof film covering which can be pierced by the insertion of the insert.   36. The bonding means according to any one of claims 1 to 35, wherein the surrounding portion includes a sealing member closing the opening.   40. A method of bonding members using the bonding means according to any one of claims 1 to 39. The receiving member embedded in the first member made of precast concrete, and the insertion member embedded in the second member made of precast concrete, and the insertion member is inserted into and fitted to the receiving member. A joint member for a precast concrete product capable of joining a first member and the second member, the joint member comprising:
The receiving member is
A surrounding member in which an engagement portion receiving space communicating with the opening into which the insertion member is inserted is formed by an inner peripheral surface;
A receiving and engaging unit having an engaging surface portion, comprising a plurality of circumferentially divided divisions, housed in the engaging portion receiving space, and having an opening into which the insertion member is inserted;
A wound elastic member disposed in a wound state on the receiving engagement unit and holding the receiving engagement unit in an expandable manner;
The insertion member is
An insert that can be inserted into the receiving and engaging unit;
A connecting portion provided in series in the insertion portion;
And an insertion engaging portion provided outside the insertion portion,
The engagement surface portion and the insertion engagement portion are set to have a predetermined interference amount in a direction substantially perpendicular to the insertion direction,
The diameter of the receiving and engaging unit is increased by the interference between the engaging surface portion and the inserting and engaging portion when the insertion member is inserted, and the diameter is reduced by the elastic force of the elastic member when the interference is released. And
The inner peripheral surface of the receiving and engaging unit and the outer peripheral surface of the insertion engaging portion each have an engaging surface substantially perpendicular to the withdrawal direction of the insertion member, and the substantially perpendicular engaging surfaces A joint member for precast concrete product, characterized in that: The enclosing member has the engaging portion receiving space having a predetermined eccentricity allowance gap capable of eccentrically accommodating the receiving and engaging unit with any radial direction, and the insertion engaging portion And an inward flange portion having an opening portion set larger than the outer diameter of the housing and smaller than the outer diameter of the receiving and engaging unit,
The receiving and engaging unit is inserted in the insertion direction for guiding a centering axis of the receiving and engaging unit so as to coincide with the axis of the inserting portion in the opening where the insertion portion is inserted. Has a guiding surface that reduces in diameter towards
By the insertion of the insertion portion, the axial center of the insertion portion and the axial center of the receiving and engaging unit are made to spontaneously coincide with each other to absorb an insertion position error of the insertion member. 42. A joint member for precast concrete products according to claim 41. The surrounding member is
The surrounding member is provided on the outer end surface of the inward flange portion exposed from the first member in a state in which the receiving and engaging unit is screwed and embedded in the anchor in a state where the receiving and engaging unit is accommodated in the engaging portion receiving space. Have an engagement recess which can be engaged with a tool for screwing and / or unscrewing the
The precast concrete product according to claim 42 or 43, further comprising an outer peripheral surface whose diameter decreases from the outer end surface side of the inward flange portion toward the rear side in the insertion direction of the insertion portion. Joint members.   The joint member for precast concrete product according to any one of claims 41 to 43, wherein the receiving and engaging unit is covered with a waterproof film capable of closing the opening.

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