JP2019199795A - Fitting - Google Patents

Abstract

To provide a fitting capable of being downsized while having a high durability in a simple structure.SOLUTION: A fitting 1 is so configured that a first fitting member 4 and a second fitting member 2 may be relatively slid so as to be jointed each other. The first fitting member 4 has an engagement projection part in irregular shape consisting of a plurality of first strip shape part arranged in a row on an outer peripheral surface, a second fitting member 2 has a recessed receiving part relative to an end surface, the receiving part has an insertion port formed in an orthogonal surface relative to said end surface and a guide restriction part in irregular shape consisting of a plurality of second strip shape part arranged in a row extending along a sliding direction from the insertion port and formed on an inner peripheral surface of the receiving part, the receiving part guides a movement along said sliding direction of the engagement projection part by that the guide restriction part have each above irregularities of the engagement projection part engaged each other and above first strip shape part and above second strip shape part interfere in a direction different from the sliding direction and restricts a relative displacement in a direction different from the sliding direction of the engagement projection part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a joint for joining two objects to be joined.

  Conventionally, joints are provided between segments in order to join a plurality of segments to form a segment ring. Such joints include, for example, a female joint and a male joint. When a female joint is provided in one segment and a male joint is provided in the other segment, and the segment is moved in the joining surface direction, There has been proposed a joint in which the claws of the mold joint are spread outward by the male joint, and the claws of the female joint are fitted into the engagement window of the male joint (see, for example, Patent Document 1).

JP2015-137525A

  In the joint described in Patent Document 1 described above, the size of the nail of the female joint and the position of the engagement window of the male joint are determined according to the joint strength between the segments. Specifically, the length of the claw along the joining direction of the segments is set to be long and the length from the tip of the male joint to the engagement window is set to be long. As a result, there is a problem that the length of the male joint and the female joint along the joining direction is increased, the entire joint is increased, and the manufacturing cost is increased.

  The present invention has been made by the inventor's diligent research in view of the above problems, and an object thereof is to provide a joint that can be miniaturized while having high strength by a simple structure.

  The joint of the present invention is a joint configured so that the first joint member and the second joint member can be relatively slid and joined together, and the first joint member has an outer peripheral surface. And the second joint member has a receiving part that is recessed with respect to the end face, and the receiving part is provided with respect to the end face. An insertion port formed in an orthogonal plane, and a concave-convex shape formed by arranging a plurality of second strips formed in the inner peripheral surface of the receiving portion extending in the sliding direction from the insertion port A guide restricting portion, and the receiving portion guides movement along the sliding direction of the insertion projecting portion by inserting the projections and depressions of the insertion projecting portion into the direction different from the sliding direction. Relative displacement in a direction different from the sliding direction of the insertion protrusion due to interference between the first strip and the second strip Characterized by regulation.

  Further, the joint of the present invention is characterized in that the receiving portion has two surfaces facing each other parallel to the sliding direction, and the second strip-shaped portion is formed on one or both of the two surfaces.

  Further, the joint according to the present invention is characterized in that at least one side of the receiving portion has an inclined portion so that the gap can be widened or narrowed from the opening of the receiving portion toward the bottom with respect to the other. And

  In addition, the joint according to the present invention is characterized in that the gap between the two surfaces of the receiving portion has a portion that decreases along the direction of the slide.

  Further, in the joint of the present invention, at least one of the two surfaces of the receiving portion and / or the insertion protruding portion has a thickness of the front end portion in which the insertion protruding portion is inserted in the sliding direction with respect to the insertion port, than the thickness of the rear end portion. It is thin.

  In the joint according to the present invention, the unevenness of the guide restricting portion is formed at the same pitch or different pitch, and the unevenness of the fitting protrusion is formed at the same pitch or different pitch.

  The joint of the present invention is characterized in that the unevenness of the guide restricting portion and the unevenness of the insertion protrusion have a cross-sectional shape of any one of a mountain shape, a wave shape, a minute uneven shape, and a sawtooth shape.

  Further, the joint according to the present invention is characterized in that the receiving portion is constituted by a plurality of partial bodies that are separate from each other.

  Further, the joint according to the present invention is characterized in that the partial body forms an insertion protrusion.

  In the joint according to the present invention, the receiving portion is composed of a plurality of fitting protrusions.

  The joint of the present invention is characterized in that the receiving part is formed by integrating a plurality of partial bodies by bonding, welding, welding, fitting and / or fastening.

  Further, the joint of the present invention is characterized in that the surface where the partial body becomes a mating surface with another partial body has a planar shape, a fine uneven surface shape, and / or an uneven surface shape that can be fitted to each other.

  Further, in the joint according to the present invention, the first joint member has a receiving portion, the second joint member has a fitting protrusion, and the fitting protrusion of the second joint member in the receiving portion of the first joint member. The fitting portion is fitted, and the fitting protrusion of the first joint member is fitted into the receiving portion of the second joint member.

  In the joint according to the present invention, the first joint member and the second joint member have anchor portions.

  In the joint of the present invention, the partial body has a fitting groove into which at least a part of the anchor is fitted, and the plurality of partial bodies sandwich the anchor.

  Further, the joint according to the present invention is characterized in that the receiving portion includes a reinforcing portion on the outside.

  According to the present invention, it becomes possible to contribute to the shearing area that resists pulling out, with a simple structure, the entire area of the mutual interference portion between the first joint member and the second joint member, and high strength. A joint that can be miniaturized can be provided.

It is a perspective view showing a joint concerning a first embodiment of the present invention. It is a figure explaining application to the shield of a joint. It is a perspective view which shows the female coupling member of the coupling which concerns on 1st embodiment. It is a perspective view which shows the male coupling member of the coupling which concerns on 1st embodiment. It is a figure which shows the male type | mold joint member slid with respect to a female type | mold joint member. It is a perspective view which shows the coupling member of the coupling which concerns on 2nd embodiment. It is sectional drawing which shows the state which embed | buried the joint member of the joint which concerns on 2nd embodiment in the segment. It is a perspective view which shows the combination of the coupling members which concern on 2nd embodiment. It is a perspective view which shows the coupling comprised combining the coupling member which concerns on 2nd embodiment. It is a figure which shows the female coupling member comprised by several partial bodies. It is a figure which shows the female coupling member comprised by several partial bodies. It is a figure which shows the coupling member comprised by the three partial bodies. It is a figure which shows the coupling member comprised by the three partial bodies. It is a figure which shows the female coupling member which consists of the same partial body. It is a figure which shows the other example of a partial body. It is a figure which shows the female coupling member which provides an anchor. It is a figure which shows the male coupling member which provides an anchor. It is a figure which shows the other female coupling member which provides an anchor. It is a figure which shows another female coupling member. It is a figure which shows another female coupling member. It is a figure which shows the female coupling member embed | buried under the segment. It is a figure which shows the male coupling member embed | buried under the segment. It is a figure which shows the other female coupling member comprised by the some partial body. It is a figure which shows the partial body formed from an anchor. It is a figure which shows the female coupling member which consists of a partial body integral with an anchor. It is a figure which shows the other example of the partial body formed from an anchor. It is a figure which shows the other example of the female coupling member which consists of a partial body integral with an anchor. It is a figure which shows the male coupling member formed from an anchor. It is a figure which shows the example of arrangement | positioning of the board part of a female coupling member. It is a figure which shows the other example of the guidance control part of a female coupling member. It is a figure which shows the example of a shape of a fitting protrusion part and a receiving part. It is a figure which shows the example of a shape of a fitting protrusion part and a receiving part. It is a figure which shows the other example of the strip-shaped part of a female coupling member. It is a figure which shows the example of the uneven | corrugated shape of a guidance control part. It is a figure which shows the female coupling member which provides a reinforcement part. It is a figure which shows the female coupling member and male coupling member which concern on the conventional coupling. It is a figure which shows an anchor arrangement | positioning groove | channel.

  Hereinafter, the joint according to the first embodiment of the present invention will be described. FIG. 1 is a perspective view showing a joint 1 according to the first embodiment. The joint 1 has two joint members, a female joint member 2 and a male joint member 4, and the female joint member 2 and the male joint member 4 are relatively slid and engaged with each other. It is configured so that it can be joined. Therefore, each joint member 2 and 4 comprises the joint for joining in the state which contacted the joint surface of the segment (to-be-joined body) made from concrete, and the joint surface of another segment, for example.

  The joint 1 can be applied to a shield construction method for constructing a tunnel in the ground as shown in FIG. In the shield method, a ring 104 is manufactured by joining segments 102 previously manufactured in a factory or the like in the circumferential direction, and the tunnel 104 is constructed by sequentially connecting the rings 104 in the axial direction. In FIG. 2, the present invention can be applied to the joint 1 in the circumferential direction of the segment symbolized by a short straight line.

  In the following description, the XYZ orthogonal coordinate system shown in FIG. 1 is set, and the positional relationship of each member will be described with reference to this orthogonal coordinate system. The X axis is set to be parallel to the sliding direction for engaging the joint members 2, 4. The Z axis is set so that both joint members 2 and 4 are engaged with each other and parallel to the facing direction. The Y axis is set to be perpendicular to the XZ plane. Further, the sliding direction when the male joint member 4 is engaged with the female joint member 2 is set as the + X direction, and the direction in which the male joint member 4 is removed from the female joint member 2 is set as the -X direction. In the Z axis, the female joint member 2 side is set in the -Z direction and the male joint member 4 side is set in the + Z direction. The Y axis sets the direction from the female joint member 2 side to the male joint member 4 side to the + Y direction.

  FIG. 3 is a perspective view showing the female joint member 2 of the joint 1 according to the first embodiment. The female joint member 2 has an outer shape that is symmetrical with respect to the XZ plane and has a substantially U-shaped cross section parallel to the YZ plane. The female joint member 2 includes a receiving portion 10 that is recessed with respect to the end face in the + Z direction and can receive a part of the male joint member 4. That is, the receiving portion 10 of the female joint member 2 includes two plate portions 12 and a connecting portion 14 that connects the two plate portions 12 on the −Z direction side. In addition, the receiving part 10 is open at both ends in the X direction, and the opening functions as an insertion port 10 a through which the fitting protrusion 20 can be inserted into the inner peripheral surface of the receiving part 10.

  Two plate portions 12 are arranged in a direction substantially parallel to the XZ plane, and two plate portions 12 are arranged at intervals in the Y direction. The plate portion 12 is formed with an uneven guide restricting portion 13 in which a plurality of strip-like portions 13 a are arranged in an opposing surface facing the other plate portion 12. The unevenness of the guide restricting portion 13 has, for example, a mountain shape, but is not limited to this.

  Each strip 13a extends along the slide direction (X direction) and is arranged along the Z direction from the edge of the plate part 12 on the + Z direction side. In addition, the strip-shaped part 13a should just be arrange | positioned at the substantially whole area of the X direction of the board part 12 at least. Accordingly, the strip portion 13a may have a shape that continuously extends over substantially the entire region in the X direction, and a plurality of strip portions 13a may be intermittently arranged along the X direction. . The length and number of the strip portions 13a, the gap between the strip portions 13a, and the like can be set as appropriate.

  FIG. 4 is a perspective view showing the male joint member 4 of the joint 1 according to the first embodiment. The male joint member 4 is a member formed in a substantially plate shape, and includes a fitting protrusion 20 at an end on the −Z direction side. The insertion projecting portion 20 has a length in the Z direction that is substantially the same as a depth of the receiving portion 10 (a length in the Z direction), and a thickness in the Y direction is substantially equal to the gap between the two plate portions 12, or It is set slightly smaller than the gap. Further, on both surfaces in the Y direction of the fitting protrusion 20, an uneven fitting surface 20 a formed by arranging a plurality of strips 21 is formed. As for the unevenness of the fitting surface 20 a, the pitch and number of the unevenness, the gap (clearance) with the unevenness of the guide restricting portion 13, etc. are set so as to fit the unevenness of the guide restricting portion 13. That is, the shape of the fitting protrusion 20 is substantially the same as the space formed by the receiving part 10, and the fitting protrusion 20 can be completely accommodated in the receiving part 10.

  FIG. 5 is a view showing the male joint member 4 sliding with respect to the female joint member 2. As shown in FIG. 5, the male joint member 4 is moved in the insertion direction in the sliding direction with respect to the female joint member 2, so that the insertion protrusion 20 is inserted into the receiving portion 10 through the insertion port 10a. . That is, the insertion protrusion 20 is moved in the + X direction with respect to the receiving portion 10 and is inserted into the receiving portion 10. The female joint member 2 may be moved in the sliding direction with respect to the male joint member 4. In this case, the receiving part 10 is moved to the −X direction side with respect to the insertion projecting part 20.

  At this time, the unevenness of the fitting surface 20 a is engaged with the unevenness of the guide restricting portion 13. That is, the convex portion of the fitting surface 20a fits into the concave portion of the guide regulating portion 13, and the convex portion of the guide regulating portion 13 fits into the concave portion of the fitting surface 20a. Accordingly, the movement of the male joint member 4 is guided by the guide restricting portion 13 so that the male joint member 4 can slide along the X direction.

  Further, the fitting protrusion 20 has the unevenness of the fitting surface 20 a fitted into the unevenness of the guide restricting part 13. Therefore, the strip-shaped portion 13a of the female joint member 2 and the strip-shaped portion 21 of the male joint member 4 interfere with a direction (Z direction) different from the sliding direction, and along the Z direction of the fitting protrusion 20 with respect to the receiving portion 10. Relative displacement is restricted. Of course, since the insertion protrusion part 20 is arrange | positioned between the board parts 12, the position along a Y direction is also controlled. As a result, as shown in FIG. 1, the joint 1 is configured by combining the male joint member 4 and the female joint member 2 so that the fitting protrusion 20 is accommodated in the receiving portion 10.

  As described above, according to the joint 1 according to the present embodiment, when the fitting protrusion part 20 of the male joint member 4 is fitted into the receiving part 10 of the female joint member 2, the unevenness of the guide restriction part 13 is obtained. And the unevenness of the fitting surface 20a can be fitted to each other to prevent the female joint member 2 and the male joint member 4 from being separated along the Z direction.

  In addition, the joint members 2 and 4 of the joint 1 according to the present embodiment have a size of the claw and a size of the engagement window as compared with the one in which a claw like the joint described in Patent Document 1 is fitted to the engagement window. A design for securing the position is not necessary. Therefore, it is possible to omit the conventional claw and engagement window configuration while maintaining the strength, and to reduce the size and weight of the joint members accordingly, and to manufacture the joint 1 at a low cost. it can.

  Further, in the joint 1 according to the present embodiment, the plurality of projections and depressions of the guide restricting portion 13 and the plurality of projections and depressions of the engagement surface 20a are fitted to each other, so that both the joint members 2 and 4 are separated along the Z direction. Since the stress against the tensile load to be applied is distributed in multiple stages, the depth of each unevenness can be set short by increasing the number of unevennesses. Therefore, the length along the depth direction (Y direction) of the unevenness can be shortened while maintaining the strength, and the joint members 2 and 4 can be downsized also by this.

  Further, the mutual interference in the Z direction on the XZ plane at the concave and convex portions where the joint members 2 and 4 engage with each other is caused by a shearing force generated by an external force in a direction separating the joint members 2 and 4 along the Z direction. Contributes to resisting shear area. That is, any XZ cross-sectional area where the joint members 2 and 4 are engaged with each other and interfere with each other serves as a shearing area and resists shearing.

  Here, FIG. 36 shows a joint 300 including a conventional female joint member 310 and a male joint member 320. The conventional male joint member 320 has a T-shaped YZ cross-sectional shape having protrusions 322 extending in both sides in the Y direction in a flange shape. The female joint member 310 has a receiving portion 312 having a protrusion 316 that is recessed in the Z direction and narrows the opening of the recess at the opening end facing the bottom portion 314 of the recess. In such a joint 300, when the protruding portion 322 is inserted into the receiving portion 312, the protruding portion 322 engages with the protrusion 316.

  At this time, the protrusion 316 and the protrusion 322 are set to have a thickness corresponding to the load resistance. For example, when the thickness corresponding to the load resistance is a, the thickness of each of the protrusion 316 and the protrusion 322 needs to be set to a or more. Therefore, the conventional joint 300 needs to secure a thickness of 2a or more in the Z direction related to the portion where the female joint member 310 and the male joint member 320 are engaged. On the other hand, in the joint 1 according to the present invention, both the joint members 2 and 4 are engaged by interference between the strip-shaped portion 13a on the inner peripheral surface of the receiving portion 10 and the strip-shaped portion 21 of the fitting projecting portion 20. While maintaining the pullout strength, it is possible to set the thickness in the Z direction related to the engaged portion to less than half of the conventional thickness. As a result, the joint members 2 and 4 can be reduced in size and weight, and the joint 1 itself can be manufactured at low cost.

  In addition, although the female joint member 2 described above has been described as providing the guide restricting portion 13 on each of the two plate portions 12, the guide restricting portion 13 may be provided on only one of them. In that case, the fitting surface 20 a is provided only on the surface of the fitting protrusion 20 that faces the projections and depressions of the guide restricting portion 13.

  Next, the joint 1 according to the second embodiment will be described. The joint 1 according to the second embodiment constitutes a joint by combining the female joint member 2 and the male joint member 4 according to the first embodiment with joint members 30 serving as male and female joints. The point is different. In addition, about the structure similar to the coupling 1 which concerns on said 1st embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  6 is a perspective view showing a joint member of the joint according to the second embodiment, and FIG. 7 is a cross-sectional view showing a state in which the joint member of the joint according to the second embodiment is embedded in a segment. The male / female integrated joint member 30 is combined with another joint member having the same structure and joined in a state in which the joint surface 108 (see FIG. 7) of the segment is in contact with the joint surface of the other segment. And constitutes a joint.

  The joint member 30 is embedded in the segment 102 by connecting the insertion protrusion 20 protruding from the joint surface 108 of the segment 102, the receiving portion 32 embedded in the segment 102, and the insertion protrusion 20 and the receiving portion 32. A connection 34 is provided. Moreover, the receiving part 32 is arrange | positioned with respect to the insertion protrusion part 20 at the upstream of the sliding direction at the time of combining another coupling member. That is, the receiving portion 32 is disposed on the −X direction side with respect to the fitting projecting portion 20 in FIG. 6.

  The entire insertion protrusion 20 protrudes from the joint surface 108. That is, the joint surface 108 serves as a boundary between the fitting projecting portion 20 and the connecting portion 34. The receiving portion 32 is embedded in the segment 102 so that the end surface on the + Z direction side shown in FIG. 6 is exposed and the end surface and the joint surface 108 are flush with each other. The receiving portion 32 includes two side walls 36 arranged substantially in parallel and a continuous portion 38 that connects base ends of both side walls 36. The end portion of the receiving portion 32 on the −X direction side in FIG. 6 is an insertion port 32a in which the insertion projecting portion 20 is opened so as to be inserted. Further, the space defined by the two side walls 36, the connecting portion 38, the insertion port, and the end surface 40 (see FIG. 7) facing the insertion port 32a in the X direction is inserted into another joint member inserted from the insertion port 32a. A receiving space having a concave cross section for receiving the protrusion is formed.

  The length of the receiving space in the Z direction is substantially the same as the length of the fitting protrusion 20 in the Z direction. The two side walls 36 have an uneven guide restricting portion 37 in which a plurality of strip-like portions 37a are arranged in rows facing each other. In addition, the unevenness | corrugation of the guidance control part 37 shall comprise a mountain shape. The strips 37a are formed in the X direction, and each strip 37a is arranged along the Z direction from the edge on the + Z direction side. As for the unevenness of the guide restricting portion 37, the pitch, the number, the gap (clearance), etc. are set so that each extends in the X direction and fits into the unevenness of the fitting surface 20a. Therefore, the fitting protrusion 20 can be fitted between the side walls 36, and the unevenness of the fitting surface 20 a of the fitting protrusion 20 can fit into the unevenness of the guide restricting part 37. Further, the receiving space of the receiving portion 32 and the shape of the fitting protrusion 20 are substantially the same, and the receiving portion 32 can completely accommodate the fitting protrusion 20.

  In a state where the fitting protrusion of another joint member is inserted into the receiving space of the receiving portion 32, a tensile force along the surface direction of the joint surface (force in a direction to separate the segments 102 along the Z direction) acts. Then, since the unevenness of the guide restricting portion 37 fits into the unevenness of the fitting surface 20a, the receiving portion 32 functions so as to hold the fitting protrusion of another joint member.

  The side wall 36 may be formed thick in order to improve its strength, but other methods, for example, a reinforcing means such as a rib or a flange is provided outside the side wall 36 to improve the strength. May be.

  The connecting portion 34 is a substantially rectangular parallelepiped member, and is embedded in the segment 102, but is not limited to this. The receiving portion 32 is connected to the end surface 34 a of the connection portion 34 in the −X direction, and the fitting protrusion 20 is connected to the end surface 34 b of the −Z direction. In addition, although the shape of the connection part 34 was made into the substantially rectangular parallelepiped shape in order to make manufacture easy, the insertion protrusion part 20 and the receiving part 32 are connected in the above positional relationships, and other joint members are joined at the time of joining. Any other shape may be used as long as it can withstand the load when pressed by the fitting protrusion.

  Next, a method of combining the male and female integrated joint members 30 will be described with reference to FIG. In FIG. 8, only the joint member 30 is shown. When the joint member 30 is embedded in the segment, the insertion protrusion of another joint member is placed in the receiving portion at a position adjacent to the receiving portion 32 of the segment. A space 110 (see FIG. 7) for entering 32 is formed. That is, the space 110 is formed at a position that is continuous with the receiving space of the receiving portion 32, and has a shape that allows the insertion projecting portion to be inserted and removed by opening the joint surface 108 side.

  When the joint members 30 are combined with each other, as shown in FIG. 8, the other joint member 30 b extends along the XZ plane so that the Z-direction end surface of the side wall 36 faces the one side wall 36 with respect to the one joint member 30 a. And rotated 180 degrees. That is, in the joint member 30 b, the insertion protrusion 20 extends in the −Z direction, and the receiving portion 32 is positioned on the + X direction side with respect to the insertion protrusion 20.

  Next, the joint member 30b is moved along the + X direction shown in FIG. When the joint member 30 is embedded in the segment, the joint member 30b is aligned in the Z direction with respect to the joint member 30a so that the joint surfaces of both segments are in sliding contact with each other. Thereby, the insertion protrusion 20 of the joint member 30a enters the receiving portion 32 of the joint member 30b, and the insertion protrusion 20 of the joint member 30b enters the reception portion 32 of the joint member 30a.

  Furthermore, by moving the joint member 30b in the + X direction, the fitting protrusion 20 of the joint member 30b is accommodated in the receiving part 32 of the joint member 30a as shown in FIG. Similarly, the fitting protrusion 20 of the joint member 30a is accommodated in the receiving part 32 of the joint member 30b. Accordingly, the receiving portion 32 and the fitting protrusion 20 are engaged with each other and function to prevent the joint members 30a and 30b from being separated from each other. In this way, the joint member 30a is combined with the other joint member 30b to constitute the joint 1.

  According to the joint member 30, the receiving portion 32 can insert the insertion protrusion of another joint member, accommodate the insertion protrusion of the other joint member inserted, and the insertion protrusion slides with respect to the reception portion 32. It can hold | maintain so that it may not slip out in the direction orthogonal to a direction. Further, the fitting member 30 is configured so that the fitting protrusion 20 is inserted into the receiving part of another fitting member and is held so as not to come out, thereby forming a stronger fitting.

  In addition, each joint member of the joint which concerns on each embodiment mentioned above can be comprised with a some partial body. First, a case where the female joint member 2 is constituted by a plurality of partial bodies formed separately from each other will be described. Specifically, as shown in FIG. 10, the female joint member 2 is composed of two partial bodies 44 and 46 that are separate from each other. The partial body 44 forms a half (left half) on the −Y direction side of the female joint member 2 shown in FIG. 10. That is, the shape of the partial body 44 is set so as to have the plate part 12 a and the −Y direction side half of the connecting part 14. On the other hand, the partial body 46 forms the + Y direction side half (right half) of the female joint member 2 shown in FIG. That is, the shape of the partial body 46 is set so as to have the plate part 12b and the + Y direction side half of the connecting part 14.

  The partial body 44 includes a coupling surface 44a that forms a mountain-shaped uneven surface, and the partial body 46 also includes a coupling surface 46a that also forms an uneven surface. The coupling surfaces 44a and 46a are set to have concave and convex surfaces so that the concave and convex portions can be fitted to each other. Therefore, the partial bodies 44 and 46 fit the mutual coupling surfaces 44 a and 46 a to form the female joint member 2. The partial bodies 44 and 46 are coupled to each other by, for example, bolt fastening. That is, in the partial bodies 44 and 46, for example, through holes (not shown) penetrating in the Y direction in the connecting portions 14a and 14b are formed. Then, bolts are inserted into both through holes, and nuts are fastened to the bolts, thereby joining the partial bodies 44 and 46 together. Moreover, the partial bodies 44 and 46 are members having the same shape, and the partial body 26 is obtained by reversing the direction so that the coupling surface 46a faces the coupling surface 44a.

  The coupling means of the partial bodies 44 and 46 is not limited to bolt fastening, and may be configured to tapped the through holes of the partial bodies 44 and 46 to provide female screw holes and screw the bolts together. Good. Also, rivet fastening or caulking may be used. In the case of coupling by caulking, for example, a convex portion is formed in the partial body 44 and a concave portion is formed in the partial body 46, and the convex portions are fitted into the concave portion and the convex portions are plastically deformed to couple the partial bodies 44 and 46 together. Moreover, as a joining means of the partial bodies 44 and 46, adhesion, welding, welding, fitting, or the like may be used, or a plurality of the joining means described above may be combined.

  Further, the coupling surfaces 44a and 46a of the partial bodies 44 and 46 are not limited to the mountain-shaped uneven surface shape, and may be a flat shape, and the saw blade shape and the leading and bottom surfaces of the unevenness in the sliding direction. The shape may be a shape in which the surface that is orthogonal to the end surface and connects the tip surface and the bottom surface forms a surface parallel to the sliding direction, or a corrugated shape in which the unevenness is a curved surface.

  Further, the coupling surfaces 44a and 46a may be minute irregularities such as knurls, minute irregularities that can be fitted to each other, or rough surface shapes. By adopting minute irregularities, the frictional force and / or fitting force between the coupling surfaces 44a and 46a increases, and therefore it is possible to prevent the coupling surfaces 44a and 46a before fastening from sliding along the surface direction. I can do it.

  Moreover, if the unevenness | corrugation which can be fitted is employ | adopted, it can suppress that each coupling surface 44a, 46a before fastening slides along a surface direction, and also unevenness | corrugation is carried out by the partial bodies 44, 46 before fastening. They can be fitted and aligned easily. Note that one or a plurality of concave portions may be provided on the coupling surface 44a, one or a plurality of convex portions may be provided on the coupling surface 46a, and the convex portions may be fitted into the concave portions for alignment.

  Thus, since the female joint member 2 can be constituted by the plurality of partial bodies 44 and 46, the partial bodies 44 and 46 can be manufactured by press working or plastic working such as forging. Therefore, even if the coupling means for integrating the partial bodies 44 and 46 is applied, the female joint member 2 can be manufactured at a lower cost than that manufactured by integral molding such as casting. Furthermore, since the partial bodies 44 and 46 can be mass-produced, the mass production of the female joint member 2 can be easily performed. Further, since the female joint member 2 manufactured by plastic working has improved strength as compared with the case of manufacturing by casting, the overall size can be reduced while maintaining the strength when manufactured by casting. Can do. Moreover, although the case where the female coupling member 2 was comprised by the some partial bodies 44 and 46 was demonstrated to the example, of course, you may comprise the male coupling member 4 by a some partial body.

  In addition, although the case where it comprised by two partial bodies was demonstrated to the example in the female coupling member mentioned above, it is not limited to this, You may comprise by three or more partial bodies. Further, a female joint member may be configured by arranging a shear key or the like between the partial bodies. For example, when a female joint member is constituted by three partial bodies, each partial body is constituted so that the connecting portion 14 is divided into three in the Y direction. That is, as shown in FIG. 11A, the partial body 50 has a shape including a part in the −Y direction of the plate part 12 a and the connecting part 14, and the partial body 52 has the + Y direction of the plate part 12 b and the connecting part 14. The partial body 54 has a shape that is an intermediate portion of the connecting portion 14 and includes the bottom surface of the receiving portion 10. Accordingly, the partial bodies 54 are coupled to each other so as to sandwich the partial body 54 between the partial bodies 50 and 52.

  When the shear key is disposed, the shear key 56 is disposed in a hole communicating with the partial bodies 50, 52, and 54, as shown in FIG. That is, the partial body 54 is formed with a through hole into which the shear key 56 penetrating in the Y direction can be inserted. Each of the partial bodies 50 and 52 can be communicated with the through hole, and a hole into which the shear key 56 is fitted is formed. Then, the shear key 56 is disposed by being inserted into the through hole of the partial body 54 and the holes of the partial bodies 50 and 52. When the shearing key 56 is provided, the partial bodies 50 and 52 can be easily aligned by inserting the shearing key 56 into the through hole of the partial body 54 in advance when the partial bodies are coupled to each other. .

  Further, even the male / female integrated joint member 30 can be constituted by a plurality of partial bodies. Here, FIG. 12 shows the joint member 30 constituted by three partial bodies, (a) is a perspective view showing the joint member, (b) is a perspective view showing the partial body 60, and (c) shows the partial body 64. It is a perspective view. Further, the coupling surfaces 62a and 64a of the partial bodies 62 and 64 are formed along the XZ plane. Furthermore, the partial bodies 60, 62, and 64 are coupled by bolts 68 and nuts (not shown). Therefore, each partial body 60, 62, 64 is formed with one or a plurality of bolt insertion holes.

As shown in FIG. 12B, the partial body 60 has a plate shape including the insertion protrusion 20, the length in the direction orthogonal to the sliding direction is longer than the insertion protrusion 20, and the partial body 62, The length in the Z direction is set so that it can be clamped by 64. That is, the partial body 60 includes a sandwiched portion that can be sandwiched between the partial bodies 62 and 64.
In the sandwiched portion of the partial body 60, a plurality of strip-like portions that are the same as the fitting protrusions 20 are formed.

  As illustrated in FIG. 12A, the partial body 62 has a substantially plate shape including the side wall 36 a and the left half (−Y direction side half) of the connecting portion 38. The partial body 64 has a substantially plate shape including the side wall 36b and the right half (+ Y direction side half) of the connecting portion 38.

Further, as shown in FIG. 12C, the partial body 64 has an uneven surface 66 in which a plurality of strips are arranged in a surface recessed in the Y direction from the coupling surface 64a. The strips of the concavo-convex surface 66 function as the strip-shaped portions 37 a of the guide regulating portion 37. Further, the irregular surface 66 functions as a concave surface that defines a space for arranging the partial body 60. The partial body 62 has an uneven surface that is recessed in the Y direction from the coupling surface 62 a, similar to the uneven surface 66.
Accordingly, when the joint member 30 is configured, the concave and convex portions of the sandwiched portion 61 and the concave and convex portions of the partial bodies 62 and 64 are fitted to each other, and the coupling surfaces 62a and 64a are connected to each other as shown in FIG. Are overlapped to join the partial bodies 60, 62, 64.

  In addition, although the shape of the partial bodies 60, 62, and 64 is not limited to the above-mentioned thing, it was set as the shape which has a joint surface and an uneven surface, However, It is not limited to this. For example, as shown in FIG. 13 (b), the partial body 60 may have an L-shaped plate shape so as to include the fitting protrusion 20 and the bottom of the receiving portion 32. In that case, the partial body 60 is provided with a plurality of strips 21 over the entire area facing the partial body 62 or the partial body 64.

  Moreover, the partial bodies 62 and 64 shall have a flat plate shape. That is, the partial body 62 has a substantially plate shape including the side wall 36a as shown in FIG. 13A, and the partial body 64 has a substantially plate shape including the side wall 36b. In addition, the partial bodies 62 and 64 are provided with a plurality of strips on the entire surface facing the partial body 60. That is, as shown in FIG. 13C, the partial body 64 is provided with a plurality of strip-shaped portions 37a over the entire area facing the partial bodies 60 and 62. Also in the partial body 62, a plurality of strip-shaped portions 37 a are disposed as in the partial body 64. When the joint member 30 is constituted by such partial bodies 60, 62, 64, the fitting surfaces 20 a of the partial bodies 60 and the guide restricting portions 37 of the partial bodies 62, 64 are fitted, and the partial bodies 60, 62 are engaged. , 64 are combined.

  As described above, the male-female integrated joint member 30 can be constituted by a plurality of partial bodies. Since the joint member 30 has a receiving space for the receiving portion 32, it cannot be manufactured by a method other than integral molding, for example, forging. However, the shape of the partial body is set so that each portion of the receiving portion 32 is divided, and each partial body is formed. Can be forged. Therefore, if the partial body is manufactured by plastic working such as forging or pressing, the joint member 30 can be mass-produced at low cost. Moreover, since the joint member 30 is manufactured with the partial body manufactured by plastic working, strength can be improved compared with what was cast. Therefore, it is possible to reduce the size of the joint member 30 while maintaining the same strength as that of the cast product, and it is possible to further reduce the weight of the joint member 30 and reduce the manufacturing cost due to the size reduction.

  Further, the mutual interference in the Z direction on the XZ plane in the concavo-convex portion where the joint members 30 engage with each other contributes to the shearing area that resists the shear force generated by the external force in the direction separating the joint members 30 in the Z direction. That is, the arbitrary XZ cross-sectional areas of the interfering portions that engage with each other of the joint member 30 become a shear area and shear resistance. Therefore, similarly to the joint 1 according to the first embodiment, the joint 1 including the joint member 30 can also set the thickness in the Z direction related to the engaging portion to half or less of the conventional joint. It becomes. As a result, the joint member 30 can be reduced in size and weight, and the joint 1 itself can be manufactured at low cost.

  Although the partial bodies for configuring the female joint member 2 described above have different shapes, the female joint member 2 may be configured by combining partial bodies having the same shape. For example, as shown in FIG. 14, the partial body 70 is assumed to have a substantially T shape having a reduced width portion 72 having a reduced thickness in the Y direction and an enlarged portion 74 having an increased thickness in the Y direction.

  The partial body 70 is formed such that a surface parallel to the XZ plane forms a concavo-convex surface by arranging a plurality of strips 76. The unevenness of the reduced width portion 72 is formed symmetrically on both end faces. That is, for a portion which is a convex portion (concave portion) on one surface, the convex portion (concave portion) is formed on the opposite surface. On the other hand, the widened portion 74 is formed by changing the positions of the unevenness so that the unevenness is alternated on both sides. That is, it becomes a recessed part (convex part) in the surface on the opposite side with respect to the location which is a convex part (recessed part) on one surface.

When such a partial body 70 is adjacent in the Y direction, the uneven portions are fitted in the widened portion 74, and the receiving portion 10 is formed by the two narrowed portions 72 facing the + Z direction end face of the widened portion 74. The female joint member 2 can be configured. At this time, the gap between the two reduced width portions 72 may be set equal to the thickness of the reduced width portion 72 in the Y direction, and the partial body 70 may be applied as the male joint member 4. That is, if the gap between the two reduced width portions 72 is set to a size that allows the reduced width portion 72 of the partial body 70 to be fitted, the partial body 70 can be applied as the male joint member 4. Accordingly, as shown in FIG. 14B, the female joint member 2 is constituted by two partial bodies 70 arranged in parallel in the Y direction. Further, the partial body 70 as the male joint member 4 has the reduced width portion 72 oriented in the −Z direction with respect to the widened portion 74, and the reduced width portion 72 is a contraction of the partial body 70 constituting the female joint member 2. Fit between the width portions 72. Accordingly, the reduced width portion 72 of the partial body 70 as the male joint member 4 functions as the fitting protrusion 20.
Thus, since it becomes possible to comprise the joint 1 by the three partial bodies 70, in addition to the effect at the time of comprising the female type | mold joint member 2 by the above-mentioned several partial bodies, a partial body is a male joint further. By making it usable as a member, the manufacturing cost of the joint can be reduced.

  When the female joint member 4 is configured by the partial body 70, the convex portions of the widened portion 74 may come into contact with each other depending on the orientation of the partial body 70. Therefore, as shown in a partial body 80 shown in FIG. 15, the position of the strip-shaped portion 85 of the widened portion 84 is configured to be switched in the middle portion in the X direction. That is, the position of the strip-shaped portion 85 from the midway portion to the end portion in the −X direction is different from the position of the strip-shaped portion 85 from the midway portion to the end portion in the + X direction. Accordingly, the widened portion 84 is configured such that the projections along the + X direction from the midway portion are concave and convex with the midway portion as the boundary so that the concave portion is formed in the range along the −X direction from the midway portion. Formed. In this way, regardless of the orientation of the partial body 80, the partial bodies 80 can be fitted to each other on any surface in the Y direction, so that the female joint member 2 can be reliably configured.

  In addition, when the joint 1 according to each embodiment is a member manufactured by solidifying a fluid such as a concrete member such as by applying the joint 1 to a segment, the female joint member 2 and the male joint member 4 Preferably comprises an anchor. Of course, it goes without saying that the male-female joint member 30 may include an anchor.

  The anchor in this case may be integrated with the female joint member 2 and the male joint member 4 or may be separate. As the anchor, for example, a deformed steel bar having an appropriate shape such as a linear shape, a U-shape, and an L-shape can be used.

  The diameter and length of the anchor are set so that the relative position of the female joint member 2 or the male joint member 4 with respect to the member to be joined can be maintained. That is, the length and diameter of the anchor are set so as to withstand an assumed axial load so that the female joint member 2 or the male joint member 4 does not separate from the member to be joined. When fixing the anchor, in addition to welding, the anchor may be fixed by providing a male screw at the end of the anchor, and further providing a female screw hole in the female joint member 2 or the male joint member 4 and screwing each other.

  Here, FIG. 16 is a view showing a female joint member 2 having an anchor, and FIG. 17 is a view showing a male joint member 4 having an anchor. As shown in FIG. 16, the anchor 90 included in the female joint member 2 is disposed so as to extend outward from the end opposite to the receiving portion 10. As shown in FIG. 17, the anchor 90 included in the male joint member 4 is disposed so as to extend outward from the opposite end of the fitting protrusion 20. Here, the anchor 90 is a deformed steel bar, but this does not limit the material and shape, and of course, a threaded bar, a round bar or the like may be used.

  The number of anchors 90 included in the female joint member 2 and the male joint member 4 is not limited to one, and may be plural. For example, when the female joint member 2 includes two anchors 90, the anchors 90 may be arranged along the sliding direction as shown in FIG. The arrangement of the plurality of anchors 90 is not limited to the direction along the sliding direction, and can be set as appropriate, such as a direction orthogonal to the sliding direction. Also in the male joint member 4, the arrangement of the anchors 90 is appropriately set as in the case of the female joint member 2.

Further, when the female joint member 2 is configured by the partial bodies 44 and 46, an anchor disposition groove 92 for disposing the anchor 90 may be formed on the coupling surfaces 44a and 46a. Specifically, on the coupling surface 44a of the partial body 44, as shown in FIG. 19, the anchor disposition groove 92 has a groove shape including unevenness corresponding to the unevenness of the outer shape of the anchor 90, that is, a rib on the surface of the anchor 90 or A groove having a shape that can be engaged by fitting a protrusion such as a line. The partial body 46 has an anchor disposition groove 92 similar to that of the partial body 44. Therefore, by joining the partial bodies 44 and 46, the anchor 90 fits in each anchor disposition groove 92 and is held and held by the partial bodies 44 and 46. When a U-shaped anchor is used as the anchor 90, as shown in FIG. 20, the anchor disposition groove 92 has a groove shape that is curved and extends in a U-shape.
It is preferable that the anchor disposition groove 92 has a shape that can prevent rattling of the anchor 90 disposed in the female joint member 2. As the shape of such an anchor disposition groove 92, for example, a protrusion 93 is disposed at the bottom of the anchor disposition groove 92 as shown in FIG. There are different shapes. The protrusion strip 93 has a convex cross-sectional shape that protrudes from the bottom of the anchor disposition groove 92 toward the opening side, and has a shape that continuously extends along the X direction. If such a protrusion 93 is brought into contact with the anchor 90, when the female joint member 2 is configured, the protrusions 93 of the partial bodies 44 and 46 hold the anchor 90, and the female joint member 2. The backlash of the anchor 90 can be suppressed.
The protrusion 93 may be formed on only one of the partial bodies 44 and 46. Moreover, the protrusion 93 sets the length which protrudes so that it may contact | abut to the anchor 90 reliably when the female joint member 2 is comprised at least. Therefore, when the protrusions 93 are formed on both the partial bodies 44 and 46, the gap between the protrusions 93 is set to be equal to or smaller than the diameter of the anchor 90. If the gap is set to be smaller than the diameter of the anchor 90, when the female joint member 2 is configured, the protrusion 93 and / or the anchor 90 are forcibly elastically deformed or plastically deformed while being forcedly deformed by the protrusion 93. The anchor 90 can be clamped.
In addition, the cross-sectional shape of the protrusion 93 can be set as appropriate, such as a peak shape of a tip, a peak shape of a tip curved surface, and a peak shape of a cross-section trapezoid having a flat tip surface. Further, the disposition position and the extending direction of the protrusions 93 are not particularly limited, but the disposition position is set on the side closer to the plate portion 12a of the anchor disposition groove 92 (the end portion side in the + Z direction). For example, the protrusion 90 can press the anchor 90 to one side (the −Z direction) along the longitudinal direction of the anchor 90. That is, the anchor 90 can be pressed against the end face 92a. More specifically, since the protrusion 93 presses the anchor 90 from a position biased in the + Z direction in the anchor disposition groove 92, a vector in the −Z direction acts on the anchor 90, and the anchor disposition groove 92. The anchor 90 can be pressed against the end surface 92a on the −Z direction side, and rattling of the anchor 90 can be further suppressed.
The anchor disposition groove 92 is formed so that substantially the entire U-shaped bent portion of the anchor 90 is fitted, that is, as shown in FIG. 37B, the end surface 92a on the −Z direction side of the anchor disposition groove 92 is formed. Is preferably formed so as not to have a semicircular shape. As a result, the end face 92a abuts on substantially the entire inner bent portion of the anchor 90, so that the female joint member 2 and the anchor 90 are more firmly engaged, and the female joint member 2 and the anchor 90 are opposite to each other. The breaking strength when subjected to a tensile force can be improved. Further, the end surface 92b facing the end surface 92a of the anchor disposition groove 92 in the + Z direction is not necessarily a curved surface, and may have a planar shape as shown in FIG.
Further, the protrusions 93 are not limited to those continuously extending along the X direction. For example, the protrusions 93 are configured by intermittently arranging a plurality of protrusions having a short length in the X direction to be extended. It may be what you did.

  The female joint member 2 and the male joint member 4 may have a shape in which the outer peripheral surface of the portion embedded in the segment (joined member) does not separate from the segment, instead of having an anchor. For example, in the female joint member 2, the outer peripheral surface 94 of the embedded portion embedded in the segment 102 is gradually reduced in width from the inner side of the segment 102 toward the joining surface 108 as shown in FIG. In addition, it is formed in a trapezoidal cross section. Alternatively, the size of the outer shape of the outer peripheral surface 94 varies depending on the depth from the joint surface 108 in the segment 102, that is, the outer shape is reduced as it is closer to the joint surface 108, and the outer shape is enlarged as it is farther from the joint surface 108. To form. Of course, the male joint member 4 may have the same shape.

  Further, in the male joint member 4, as shown in FIG. 22, one or a plurality of protrusions 97 such as ribs and nodes may be formed on the outer peripheral surface of the embedded portion 96 embedded in the segment. The protrusion 97 is not particularly limited in shape. For example, the protrusion 97 may be formed in an endless shape, a spiral shape, or an intermittent loop, but is orthogonal to at least the direction separating from the segment 102. It is preferable to stretch along the direction. Further, the plurality of protrusions 97 may make the outer peripheral surface of the embedded portion 96 have an uneven shape (including a minute uneven shape). Of course, the female joint member may have the same shape.

  Alternatively, a hole may be provided in the embedded portion 96, and a rod or the like may be inserted through the hole to function as an anchor. Of course, when the segment 102 is a member manufactured by solidifying a fluid such as a concrete member, the male joint member 4 can be strengthened against the segment 102 by flowing the fluid into the hole of the embedded portion 96. It can be fixed to the rod, and no bar material is required. Moreover, you may make it form a concave hole instead of the hole to penetrate in the embedded part 96, and the number and magnitude | size of a hole are set suitably.

  When the embedded portion 96 of the male joint member 4 has a function corresponding to the function of an anchor, the female joint member 2 is configured by combining the male joint member 4 with a part and another part. May be. For example, the male joint member 4 shown in FIG. 23A has a hole 98 formed in the embedded portion 96 and is applied as the partial body 54. In this case, as shown in FIG. 23B, the other partial bodies 50 and 52 constituting the female joint member 2 have a surface abutting on the partial body 54 that is uneven on the fitting surface 20 a of the male joint member 4. It shall have irregularities that fit into If the male joint member 4 is applied as the partial body 54 in this way, the partial body 54 can function as an anchor, so that the manufacturing cost of the joint can be eliminated as compared with the case where the anchor is provided. Moreover, since the kind of partial body to manufacture can be reduced, as a result, the manufacturing cost of the female coupling member 2 can be reduced.

  The female joint member 2 and the male joint member 4 may be integrated with an anchor. Specifically, a partial body forming a part of the female joint member 2 or a male joint member 4 is formed by plastic deformation such as forging of a part of the anchor. That is, when forming a partial body of the female joint member 2, the forging process (hot forging, warm forging, or cold forging) is performed from one end portion of one anchor 200 shown in FIG. A general outline of the partial body 210 shown in FIG. Next, parts such as the coupling surface 212 and the guide restricting portion 13 are formed on the partial body 210 having a generally outer shape by forging using another die as shown in FIG. In this way, the partial body 210 is formed from the anchor 200.

  When the female joint member 2 is configured using the partial body 210, for example, as shown in FIG. 25 (a), it may be coupled to another partial body 210, or as shown in FIG. 25 (b). You may couple | bond with the partial body which does not contain the anchor 200 like the body 44 (or the partial body 46).

  The position of the anchor 200 with respect to the partial body 210 is preferably the central portion of the end face of the partial body 210, but is not limited to this, and as shown in FIG. It may be a different position. In this case, as shown in FIG. 27, the female joint member 2 is preferably joined together by the same partial bodies 210, whereby when the axial load of the anchor 200 acts, It is possible to prevent the load from being biased.

  In the case of the male joint member 4, a general outline of the male joint member 4 shown in FIG. 28 (b) is formed by forging from one end of one anchor 200 shown in FIG. 28 (a). Next, as shown in FIG. 28 (c), a portion such as a fitting protrusion 20 is formed on the male joint member 4 having a generally outer shape by forging using another die. In this way, the male joint member 4 is formed from the anchor 200.

  In the female joint member 2 described above, the two plate portions 12 are arranged along the Z direction, that is, the gap between the plate portions 12 is substantially uniform. However, the present invention is not limited to this. Even if it is inclined so as to form a substantially V shape so as to gradually widen the gap from the bottom surface of the concave receiving portion 10 to the opening (from the −Z direction side to the + Z direction side) as shown in FIG. Good. Further, as shown in FIG. 29 (b), it may be inclined so as to form an inverted V shape so as to gradually narrow the gap from the bottom surface of the receiving portion 10 having a concave shape to the opening.

  Moreover, the pitch of the unevenness | corrugation of the guide control part 13 of the female coupling member 2 can be set suitably, and may change a pitch gradually especially along a Z direction. For example, as shown in FIG. 29C, the pitch may be gradually increased from the opening of the receiving portion 10 having a concave shape toward the bottom surface (from the + Z direction side to the −Z direction side). . Further, as shown in FIG. 29 (d), the pitch may be gradually decreased from the opening of the receiving portion 10 having a concave shape toward the bottom surface (from the + Z direction side to the −Z direction side). . In this case, of course, the outer shape of the fitting protrusion 20 of the male joint member 4 is formed to match the shape of the guide restricting portion 13.

  Thereby, the alignment along the pitch direction of the unevenness | corrugation with the female coupling member 2 and the male coupling member 4 can be performed reliably. That is, the insertion protrusion 20 cannot be inserted into the insertion port 10a when the unevenness of the fitting surface 20a is shifted in pitch from the unevenness of the guide restricting portion 13. Therefore, alignment along the pitch direction of the unevenness between the male joint member 4 and the female joint member 2 can be reliably performed.

  Further, in the female joint member 2, the position of the strip portion 13a of each plate portion 12 in the Z direction is matched, but the position of the strip portion 13a may be varied. For example, as shown in FIG. 30, the guide restricting portion 13 of one plate portion 12 forms a convex portion, but the guide restricting portion 13 of the other plate portion 12 forms a concave portion so that the uneven portions are shifted so as to be displaced. 12 may be formed. In addition, the positioning of the female joint member 2 and the male joint member 4 is not based on the coincidence of the unevenness of the fitting surface 20a and the unevenness of the guide restricting portion 13, for example, in the receiving portion 10 of the insertion projecting portion 20. You may make it carry out by the shape of the front-end | tip part which fits. For example, as shown in FIG. 31, the insertion protrusion 20 may form a positioning portion 230 having a semicircular tip. In this case, the receiving part 10 has a groove part 232 into which the positioning part 230 can be fitted at the bottom part.

  In addition, the shape of the insertion protrusion part 20 and the receiving part 10 can be set suitably. For example, the front end of the insertion protrusion 20 in the sliding direction (+ X direction side) may be formed thinner than the rear end. Further, when the male joint member 4 is slid relative to the female joint member 2, the receiving portion 10 is configured such that the opening on the insertion port 10a side is wider than the opening on the back side in the sliding direction. The fitting protrusion 20 can easily enter the insertion port 10a. Specifically, as shown in FIG. 32A, in the receiving portion 10, the gap between the two plate portions 12 on the insertion port 10a side is b1, and the gap between the plate portions 12 at the + X direction end is b2. At this time, it is formed so as to satisfy b1> b2. Further, in the insertion projecting portion 20, the thickness in the Y direction of the front end portion in the insertion direction in the sliding direction is b2, and the thickness in the Y direction of the rear end portion is b1.

  The shape of the receiving portion 10 for satisfying the above gap condition can be set as appropriate. However, the plate portion 12 may be inclined with respect to the X axis, and as shown in FIG. You may make it the thickness of the part 12 make the front-end part of the insertion direction of the sliding direction of the board part 12 thinner than a rear-end part. Further, as shown in FIG. 32 (c), the thickness of the front end portion in the insertion direction in the sliding direction of the fitting protrusion 20 is thinner than the other thickness and / or the front end portion in the insertion direction in the sliding direction of the plate portion 12. The thickness of may be made thinner than other thicknesses. In any case, it is preferable that the shape of the fitting protrusion 20 is set so as to substantially correspond to the receiving space of the receiving portion 10, that is, a shape in which the gap of the plate portion 12 can be fitted.

  The sliding direction of the male joint member 4 with respect to the female joint member 2 can be set as appropriate, and may be a direction substantially parallel to the joint surface of the segment, or the female joint member along the insertion direction in the sliding direction. It is good also as a direction where 2 and the male coupling member 4 can approach gradually. That is, in the female joint member 2, as shown in FIG. 33, the strip-like portion 13a is set so as to be gradually inclined in the −Z direction along the + X direction from the insertion port 10a side.

In addition, the cross-sectional shape of the unevenness | corrugation of the fitting surface 20a and the unevenness | corrugation of the guide control part 13 is not limited to a mountain shape, If it is a shape which mutually engages, it can set suitably. FIG. 34 is a view showing an example of the uneven shape of the guide restricting portion 13, and the cross-sectional shape of the uneven portion of the guide restricting portion 13 may be, for example, a sawtooth shape. In that case, a sawtooth shape composed of an inclined surface connecting the bottom of the concave portion and the tip of the convex portion shown in FIG. 34A and a surface parallel to the Y axis, or the tip shown in FIG. You may set in the sawtooth shape etc. which inclined in the direction. Further, the unevenness of the guide restricting portion 13 may be a waveform in which the tip of the convex portion shown in FIG. 34C is curved, and the convex portion of the waveform shown in FIG. 34D is in the −Z direction. The shape may be inclined. Further, as shown in FIG. 34 (e), it may be an uneven shape composed of surfaces parallel to the Z direction and the Y direction, or may be a trapezoidal uneven shape as shown in FIG. 34 (f).
In addition, each of the plurality of irregularities may have the same shape and / or similar shape, or may have a shape in which some or all of them are different.

In the female joint member 2, the thickness of the plate portion 12 may be increased in order to improve the strength against the input along the Y direction of the plate portion 12, but other methods such as the plate portion shown in FIG. Reinforcing portions 240 such as ribs and flanges may be provided on the outer side of 12 to improve the strength. In addition, it is preferable to arrange | position the reinforcement part 240 so that it may extend | stretch in the plate part 12Z direction. The number of reinforcing portions 240 may be singular, but it is preferable to provide a plurality of reinforcing portions 240 in order to improve the strength.
Further, when a plurality of reinforcing portions 240 are provided, another reinforcing portion 242 may be provided so that the reinforcing portions 240 can be connected to each other as shown in FIG. The strength of can be improved.

  Various materials can be used as the material of the joint 1 of the present invention depending on the desired strength, manufacturing cost, environmental conditions in which the segments are used, and of course, various joint members can be synthesized in addition to metals. It can be formed by an appropriate manufacturing method using an appropriate material such as resin, wood, paper, glass, ceramics, rubber, or a composite material thereof.

  Moreover, the joint of this invention can be applied to to-be-joined bodies other than a segment, As a material of the to-be-joined body applicable, they are a concrete, a metal, a synthetic resin, wood, etc., for example. As a shape of a to-be-joined member, it can apply to joining of the same kind of members, such as plate shape, column shape, and cylindrical block shape, or a different kind of member, for example. In addition to the shield segments exemplified above, bookshelves and precast concrete members (precast concrete members) in general, furniture in general, building materials for construction and construction, including various materials such as housing frame materials, various machines, etc. It can be applied to any article.

  DESCRIPTION OF SYMBOLS 1 ... Joint, 2 ... Female joint member, 4 ... Male joint member 10, 32 ... Receiving part, 10a, 32a ... Insertion port, 12 ... Plate part, 13, 37 ... Guidance restricting part, 13a, 37a ... Article , 14 ... connecting part, 20 ... fitting protrusion, 20 a ... fitting surface, 21 ... strip-like part, 30 ... joint member, 34 ... connecting part, 36 ... side wall, 38 ... connecting part, 44, 46, 50, 52, 54, 60, 62, 64 ... partial body, 44a, 46a ... coupling surface, 56 ... shear key, 66 ... uneven surface, 100 ... tunnel, 102 ... segment, 104 ... ring, 108 ... joining surface, 110a , 110b ... space.

Claims (18)

A first coupling member and a second coupling member are configured to be able to be relatively slid and joined to each other,
The first joint member has an uneven fitting protrusion formed by arranging a plurality of first strips on the outer peripheral surface,
The second joint member has a receiving portion recessed with respect to the end surface,
The receiving portion includes an insertion port formed in a plane orthogonal to the end surface, and a plurality of second strips formed in the inner peripheral surface of the receiving portion extending along the sliding direction from the insertion port. An uneven guide regulating portion arranged in a row,
The receiving part guides the movement of the fitting protrusion along the sliding direction by fitting the projections and depressions of the fitting protrusion into the first protrusion in a direction different from the sliding direction. The joint is characterized in that a relative displacement in a direction different from the sliding direction of the insertion projecting portion is regulated by interference between the strip-shaped portion and the second strip-shaped portion. The receiving portion has two surfaces facing each other parallel to the sliding direction,
The joint according to claim 1, wherein the second strip is formed on one or both of the two surfaces.   The at least one surface of the receiving portion has an inclined portion so that a gap can be expanded or narrowed from an opening of the receiving portion toward a bottom with respect to at least one of the other surfaces. 2. The joint according to 2.   4. The joint according to claim 2, wherein an interval between the two surfaces of the receiving portion includes a portion that decreases along the direction of the slide. 5.   At least one of the two surfaces of the receiving portion and / or the insertion protrusion, the insertion protrusion is thinner in the front end portion in the sliding direction insertion direction with respect to the insertion port than the thickness of the rear end portion. The joint according to any one of claims 1 to 4, wherein: The unevenness of the guide restricting portion is formed at an equal pitch or a different pitch,
The joint according to any one of claims 1 to 5, wherein the projections and depressions of the fitting protrusions are formed at an equal pitch or different pitches.   7. The unevenness of the guide restricting portion and the unevenness of the insertion projecting portion have a cross-sectional shape of any one of a mountain shape, a wave shape, a minute uneven shape, and a sawtooth shape. Fittings.   The joint according to any one of claims 1 to 7, wherein the receiving portion includes a plurality of partial bodies that are separate from each other.   The joint according to claim 8, wherein the partial body forms the fitting protrusion.   The joint according to claim 9, wherein the receiving portion includes a plurality of the fitting protrusions.   The joint according to any one of claims 8 to 10, wherein the receiving portion is formed by integrating the plurality of partial bodies by bonding, welding, welding, fitting, and / or fastening.   12. The partial body according to claim 8, wherein a surface to be a mating surface with another partial body has a planar shape, a minute uneven surface shape, and / or an uneven surface shape that can be fitted to each other. The joint according to crab. The first joint member has the receiving portion,
The second joint member has the fitting protrusion.
The fitting protrusion of the second joint member is fitted into the receiving portion of the first joint member,
The joint according to any one of claims 1 to 12, wherein the fitting protrusion of the first joint member is fitted into the receiving portion of the second joint member.   The joint according to any one of claims 1 to 13, wherein the first joint member and the second joint member have an anchor portion. The partial body has a fitting groove for fitting at least a part of the anchor;
The joint according to claim 8, wherein the plurality of partial bodies sandwich the anchor.   The joint according to claim 1, wherein the receiving portion includes a reinforcing portion on an outer side. The partial body has a protrusion on the bottom of the fitting groove,
The joint according to claim 15, wherein the protrusion is in contact with the anchor. The protrusion is disposed on one side of the fitting groove along the longitudinal direction of the anchor,
The joint according to claim 17, wherein the anchor is pressed against the inner wall of the fitting groove located on the other side along the longitudinal direction by the protrusion.

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