JP2008038550A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metal connector which connects one member to another member only by inserting a male metal fitting into a female metal fitting, and shows less shaking after inserting the male metal fitting into the female metal fitting. <P>SOLUTION: The metal connector includes the male side metal fitting (1) and the female side metal fitting (2), each of which is fixed to each of the members to be connected together. The male side metal fitting (1) has a male side pillarlike member (1), and the female side metal fitting (2) has a casing (3) and a female side pillarlike member (4). Sloped surfaces (32) are formed on the inner peripheral surface of the male side end face corners of the casing (3). The female side pillarlike member (4) in contact with the sloped surfaces moves inwardly in the radial direction when pushed by an energy-applying force toward the male side metal fitting (1), which causes the male pillarlike member (1) to engage with the female pillarlike member (4). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a coupling device used, for example, for coupling tunnel segments. More specifically, the present invention has a male metal fitting and a female metal fitting, and a male metal fitting or a female metal fitting is attached to each member to be fastened (for example, a structure such as a tunnel segment). The present invention relates to a coupling device that couples or fastens a member provided with a male metal fitting and a member provided with a female metal fitting by inserting the male metal fitting into the female metal fitting.

  There is a demand for a coupling device that can reliably couple members to be fastened (for example, a structure such as a tunnel segment) by simply inserting the male fitting into the female fitting.

However, in the prior art, the pushing load necessary to insert the male metal fitting into the female metal fitting is excessive.
In many cases, it is difficult to insert the male metal fitting into the female metal fitting, or it is difficult to incorporate the male metal fitting and the female metal fitting.
Furthermore, after inserting the male metal fitting into the female metal fitting, the backlash (so-called “opening”) is large.
Thus, there are various problems in the prior art.

As another conventional technique, for example, there is a joint structure of a concrete segment that securely fixes a joint fitting and a main bar provided on a joint surface between concrete segments of a tunnel with a simple structure and enables efficient stress transmission. It has been proposed (see Patent Document 1).
However, the related art does not solve the above-described problems.
JP 2004-324104 A

  The present invention has been proposed in view of the above-described problems of the prior art, and by simply inserting the male metal fitting into the female metal fitting, the members to be fastened can be securely coupled to each other, and the male It is an object of the present invention to provide a coupling metal fitting that can be easily inserted into a female metal fitting and has a small backlash after the male metal fitting is inserted into the female metal fitting.

  The coupling device of the present invention has a male side metal fitting (1) and a female side metal fitting (2), and the male side metal fitting (1) and the female side metal fitting (2) are members to be fastened (for example, a tunnel segment). The male side metal fitting (1) has a columnar male side columnar member (for example, a male side bolt, a male side pin, a male side prism, etc .: 1). The female side metal fitting (2) has a casing (3) and a female side columnar member (for example, a female side bolt, a female side pin, a female side prism, etc .: 4), and a casing (3 ), The inner peripheral surface of the corner of the male side end face (33) is radially inward if the female columnar member (female side bolt 4) in contact therewith is urged toward the male side metal fitting (1). An inclined surface (tapered surface 32) or a curved surface is formed so as to move, the male side columnar member (1) and the female side column Member and (4) is characterized in that it is configured to engage (claim 1).

Ends (44N, 44P, 44Q, 44R, 44S) on the side of the female side columnar members (4N, 4P, 4Q, 4R, 4S) that are separated from the male side end surface are separated by a plate-like member (guide plate 5). It is preferable that the male side end face of the side columnar member (4) is supported so as to be movable inward in the radial direction of the casing (3) (Claim 2: FIGS. 56 and 62 to 65).
However, the plate-like member (guide plate 5) can be omitted (FIG. 73).

Moreover, it is preferable that the female side columnar member (4) is configured to be urged toward the male side metal fitting (1) (Claim 3).
Specifically, for example, an elastic body (spring 6, synthetic resin) is provided between an end face (cap 30 of the casing 3) and a plate-like member (guide plate 5) on the side separated from the male end face of the casing (3). 6A, etc.) and the elastic repulsive force of the elastic body urges the plate-like member (guide plate 5) toward the male-side metal fitting (1), thereby causing the female-side columnar member (4) to move. It can comprise so that it may urge to the male side metal fitting (1) side (FIG. 1, FIG. 45-FIG. 48).

  Further, the plate-like member (guide plate 5F) is formed of an elastic material (eg, spring, rubber, synthetic resin, etc.), and the female side columnar member (4) is formed by the elastic repulsion of the plate-like member (guide plate 5F). May be configured to be biased toward the male metal fitting (1) side (FIG. 44).

  Alternatively, the plate-like member (guide plate 5) is supported on the casing inner peripheral surface (31) by a support material (6D) formed of an elastic material (for example, spring steel), and the elastic repulsion of the support material (6D). You may comprise so that a plate-shaped member (guide plate 5) may be urged | biased to the male side metal fitting side by force (FIG. 49).

In the present invention, the male side columnar member (1) has irregularities (for example, threads, grooves, etc.) formed on its surface, and the irregularities (for example, threads, grooves, etc.) on the surface of the female side columnar member (1). And a plurality of female side columnar members (4) are preferably arranged on the same circumference (claim 4).
Here, the male side columnar member (1) and the female side columnar member (4) may have irregularities formed over the entire longitudinal direction thereof, or irregularities are partially formed in the longitudinal direction. (FIGS. 2, 3, 10, and 12).

The male side columnar member (1, 1B, 1C, 1D) and the female side columnar member (4, 4L, 4M, 4T, 4U) may be circular (1) or non-circular. For example, it may be a quadrangle or a semicircle (FIGS. 1, 52 to 55, 66 to 68, and 70 to 72).
And it is preferable that the male side columnar member (1C, 1D) has a cross-sectional shape complementary to a plurality of female side columnar members arranged on the same circumference (FIGS. 71 and 72).

  Alternatively, in the present invention, irregularities (for example, threads, grooves, etc.) are formed only on the surface of one of the male side columnar member and the female side columnar member, and the other (1A, 4H) surface is configured to be smooth. The columnar member on the side (1A, 4H) formed smoothly is preferably made of a softer material than the columnar member on the side where the irregularities are formed on the surface (Claim 5: FIG. 50, FIG. 51).

Here, it is preferable that the unevenness is constituted by a screw thread, and one of the male side columnar member and the female side columnar member is a right-handed screw, and the other is a left-handed screw (Claim 6: FIG. 75).
Of course, both the male side columnar member and the female side columnar member may be right-handed or left-handed.

  In the present invention, it is preferable that a member having a continuous arc-shaped cross-sectional shape is disposed in parallel with the female side columnar member and adjacent to the female side columnar member (Claim 7: FIGS. 29 to 29). 33).

  Furthermore, in the present invention, it is preferable that an elastic material is provided on the male side end of the female side columnar member and / or the male side end surface (33) of the casing (Claim 8: FIGS. 10 and 21). FIG. 26).

According to the present invention having the above-described configuration, the female side columnar member (4) in contact with the inner peripheral surface of the male side end face corner of the casing (3) is biased toward the male side metal fitting (1). If it is made, the inclined surface (32) or the curved surface is formed so as to move inward in the radial direction (Claim 1). Accordingly, when the male side columnar member (1) is fitted into the female side columnar member (4) and the male side columnar member (1) and the female side columnar member (4) are engaged, the male side metal fitting (1) and A member to be fastened (for example, a structure such as a tunnel segment) fastened to each of the female side metal fittings (2) is fastened.
On the other hand, even if the male side columnar member (1) is to be separated from the female side metal fitting (2), the female side columnar member (4) engaged with the male side columnar member (1) is on the male side metal fitting (1) side. To be energized. And the said female side columnar member (4) moves to radial inside by the said inclined surface (32) or a curved surface. Therefore, the male side columnar member (1) and the female side columnar member (4) are more firmly engaged, and the connection between the male side metal fitting (1) and the female side metal fitting (2) is also strengthened.

  In the present invention, the end (44N, 44P, 44Q, 44R, 44S) on the side separated from the male side end face of the female side columnar member (4N, 4P, 4Q, 4R, 4S) is replaced with a plate-like member (guide plate 5). 5A, 5B, 5D, 5E), if the male side end face of the female side columnar member (4N, 4P, 4Q, 4R, 4S) is supported so as to be movable radially inward (Claim 2), When the female side columnar member (4N, 4P, 4Q, 4R, 4S) is biased toward the male side metal fitting (1 etc.), it moves inward in the radial direction by the inclined surface (32) or the curved surface. Is guaranteed.

  Further, if the female side columnar member is configured to be urged to the male side metal fitting side (Claim 3), the female side columnar member (4) moves radially inward, and the male side columnar member ( 1) is further ensured to be more firmly engaged, and it is also ensured that the male metal fitting (1) and the female metal fitting (2) are firmly coupled.

  In the present invention, the male side columnar members (1, 1B, 1C) have irregularities (for example, threads 13, grooves, etc.) formed on the surface, and the female side columnar members (4, 4J, 4K, 4L, 4M). Are formed on the surface thereof (for example, thread 42, grooves 42J, 42K, 42L, 42M, etc.) and the female side columnar members (4, 4J, 4K, 4L, 4M) have the same circumference in the casing (3). If a plurality of members are arranged on top (Claim 4), when the female side columnar member (4, 4J, 4K, 4L, 4M) is moved radially inward by the inclined surface (32) or the curved surface, The unevenness of the male side columnar members (1, 1B, 1C) and the unevenness of the female side columnar members (4, 4J, 4K, 4L, 4M) are engaged. Therefore, the male side metal fitting (1, 1B, 1C) and the female side metal fitting (2) are securely coupled. Therefore, it is possible to reliably fasten the members to be fastened, for example, the segments constituting the tunnel inner wall.

  Alternatively, in the present invention, irregularities (for example, threads, grooves, etc.) are formed only on the surface of one of the male side columnar member and the female side columnar member, and the other (1A or 4H) surface is configured to be smooth. If the columnar member on the smooth side (1A or 4H) is made of a softer material than the columnar member on the surface where the irregularities are formed (Claim 5), the inclined surface (32) or When the female side columnar member moves inward in the radial direction due to the curved surface, the unevenness formed on one of the male side columnar member and the female side columnar member bites into the other columnar member configured smoothly. Engage. Therefore, the male side columnar member and the female side columnar member are securely engaged, and thus the male side metal fitting and the female side metal fitting are reliably coupled.

The unevenness is constituted by a screw thread, and one of the male side columnar member (1) and the female side columnar member (4) (for example, the male side columnar member 1) is the right screw (13), and the other (for example, Even if the female side columnar member 4) is configured to have a left-hand thread (42L) (Claim 6), the threads formed on the male side columnar member (1) and the female side columnar member (4) (13 , 43L) also engage with each other, although the mutual leads intersect each other (see FIG. 75).
On the other hand, if the screws of the male side columnar member (1) and the female side columnar member (4) are both right-handed screws or left-handed screws, the screws of the male side columnar member (1) do not cross each other. The mountain and the thread of the female columnar member (4) are securely and tightly engaged (see FIG. 74).

  Furthermore, in this invention, if an elastic material (43t and / or 7) is provided in the male side end part (43) of the female side columnar member (4) and / or the male side end surface (33) of the casing (3) ( Since the displacement in the longitudinal direction of the male side columnar member (1) and the female side columnar member (4) can be absorbed by the elastic deformation of the elastic member (43t and / or 7), it is possible to withstand earthquakes. It is possible to obtain a seismic effect.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
In the accompanying drawings, reference numeral (NS) represents a front view of FIG. N, reference numeral (NR) represents a right side view of FIG. N, and reference numeral (NL) represents a left side view of FIG. Is shown.

First, a first embodiment will be described with reference to FIGS. The first embodiment is a so-called “basic form” of the coupling device of the present invention.
The coupling device shown in FIG. 1 includes a male side metal fitting 1 and a female side metal fitting 2. The male side metal fitting 1 and the female side metal fitting 2 are used by being fixed to each member to be fastened, for example, a tunnel segment.

As shown in detail in FIG. 2, an edge (stopper) 12 having a partially arcuate cross section is formed in the center of the shaft portion 11 of the male side metal fitting 1 over the entire circumference.
The edge (stopper) 12 having a partially arcuate cross section serves as a positioning member for determining the insertion length when the male metal fitting 1 is inserted into a male metal fitting insertion hole 34 of the casing 3 described later. Bear.

In FIG. 2, the left end of the male side metal fitting 1 is configured as a frustoconical tip portion 15, and a male screw 13 is formed in almost all areas on the left side of the stopper 12. A male screw 14 is also formed in the right side area (substantially all areas) of the stopper 12.
The male screw 13 on the tip 15 side of the stopper is formed in the entire region on the left side of the stopper 12 in FIG. 2, but the male screw 13 is formed only to a certain length L from the tip as shown in FIG. May be. Here, the length L is set as a meshing length that can withstand a predetermined or higher tensile force when the male metal fitting 1 is engaged with the female metal fitting 2.
The male screw 14 is fastened with a female screw provided on a member to be coupled (for example, a tunnel segment body not shown).

Here, the male screw 13 of the male side metal fitting 1 and the male screw 42 (described later) engaged with the male screw 13 do not select the type and grade of the screw, and the screw pitch is not limited. Here, the male screw 42 is formed on the bolt 4 in the female side metal fitting 2 described later that engages with the male screw 13 of the male side metal fitting 1.
Although details will be described later, the configuration for engaging both the male side and the female side is not limited to a spiral screw, and may be a plurality of independent grooves. Alternatively, either the male side or the female side is formed of a relatively soft and smooth member that does not form a screw (or groove), and the other screw (or the portion between the grooves) is relatively soft and smooth. You may couple | bond by making it bite into a proper member.

4 to 9 show variations of the tip shape of the male side metal fitting 1.
4 shows a flat tip 15A of the male side metal fitting 1, FIG. 5 shows a cone-shaped tip 15B, FIG. 6 shows a tip having a conical recess 15C, and FIG. 7 shows a hemispherical tip. FIG. 8 shows a tip portion having a spherical recess (a recess constituted by a part of a spherical surface) 15E, and FIG. 9 shows a tip portion having a cylindrical recess 15F.

In particular, the tip shapes of FIGS. 2, 5, and 7 are easy to center. As will be described later with reference to the guide plate 5, if the tip shape is as shown in FIGS. It is easy to center.
The tip shapes shown in FIG. 4, FIG. 6, FIG. 8, FIG. 9, etc. are selected according to the center shape of the corresponding guide plate.

Referring again to FIG. 1, the female side metal fitting 2 locks the casing 3, a plurality of (eight in FIG. 1) female side bolts 4 (female side columnar members), and a plurality of female side bolts 4 on the same circumference. The guide plate 5 is configured to be engaged (or engaged), the cap 30 that closes the open side 35 of the casing 3, and the coil spring 6.
Here, the coil spring 6 is interposed between the guide plate 5 and the cap 30 and presses the guide plate 5 toward the male metal fitting 1 side.

The casing 3 is formed in a cylindrical shape as a whole, and a bottom 33 is formed on the male metal fitting 1 side, and an insertion hole 34 through which the male metal fitting 1 is inserted is formed in the center of the bottom 33.
Although not clearly shown in FIG. 1, a predetermined gap exists between the outer peripheral surface of the shaft portion 11 (see FIG. 2) of the male side metal fitting 1 and the inner peripheral surface of the insertion hole 34. Due to the presence of the gap, the male metal fitting 1 swings in the direction of the arrow Y in FIG.
Of course, in the relative relationship between the male side metal fitting 1 and the insertion hole 34, the shaft portion 11 of the male side metal fitting 1 is movable in the axial direction (the X arrow direction in FIG. 1).

The swinging in the direction of the arrow Y by the male side metal fitting 1 can alleviate a shearing force generated between two joined tunnel segments, for example, and can provide a seismic isolation effect.
Further, the movement in the direction of the arrow X by the male side metal fitting 1 can relieve the tensile force between segments during an earthquake or the like.

A tapered surface (inclined surface) 32 having an angle θ is formed at a corner between the inner periphery 31 and the bottom 33 of the casing.
Here, the taper angle θ can be freely set. More specifically, it is ideal that the thread of the female side bolt 4 and the taper are perpendicular to each other. Therefore, the taper angle θ may be set according to the angle of the thread formed on the female bolt 4.

For example, as shown in FIG. 10, the female-side bolt 4 can have a partially truncated cone-shaped elastic body 43 t attached to an end 43 (right end in FIG. 10) 43 on the male-side metal fitting 1 side.
An end 44 (left end in FIG. 10) opposite to the end of the female side bolt 4 on the male side metal fitting 1 side is formed to have a diameter smaller than the diameter of the shaft 41 of the bolt, and the tip side thereof is spherical. A recess 45 (a recess that forms part of a spherical surface) 45 is formed. In the example of FIG. 10, the male screw 42 is formed over the entire area excluding the elastic body 43 t and the end portion 44.

In FIG. 1, when the guide plate 5 is pressed by the coil spring 6 to the male side metal fitting 1 side (the right side in FIG. 1), the elastic body 43 t of the partial truncated cone of the female side bolt 4 locked to the guide plate 5. Moves inward in the radial direction (male side metal fitting 1 side or the center side of the casing 3) along the inclined surface 32 and contacts the inclined surface 32 of the casing 3, and in the axial direction of the female side bolt 4. Compressed.
By compressing the elastic body 43t in the axial direction of the female bolt 4, for example, the movement in the connecting direction of the tunnel segments that are the members to be coupled is alleviated. That is, it exhibits a seismic isolation effect.

As shown in FIG. 1, a plurality of female bolts 4 (right end in FIG. 1) are attached to the guide plate 5. FIG. 11 shows the manner in which the end of the female bolt 4 is attached to the guide plate 5 for each step in (11-1) and (11-2). Here, the female bolt 4 shown in FIG. 11 is of a type in which a hemispherical recess 45 is formed at the end 44 thereof.
An end 44 of the female bolt 4 in the state before processing shown in (11-1) of FIG. 11 is formed on the guide plate 5 (described later with reference to FIG. 19; Portion is indicated by a two-dot chain line) (not shown in FIG. 11).
Then, as shown in (11-2) of FIG. 11, the end 44 of the female bolt 4 is processed by, for example, a hammer or the like so that the edge 44a at the end 44 expands in the outer circumferential direction (so-called “caulking”). I do). When the edge 44a of the end portion 44 expands in the outer circumferential direction, the female bolt 4 is engaged so as not to drop off from the guide plate 5.

  By adjusting the position of plastic deformation with a jig (not shown) when processing the tip of the end 44 of the female bolt 4 as shown in (11-2) of FIG. 11 (so-called “caulking”), The end 43 on the male side metal fitting 1 side of the female side bolt 4 can be made swingable.

  In FIG. 1, when the male metal fitting 1 is coupled to the female metal fitting 2, the inclined surface of the elastic body 43 t provided at the male end portion 43 of the female bolt 4 contacts the inclined surface 32 of the casing 3. . In this state, when a force that separates the male side metal fitting 1 from the female side metal fitting 2 is applied, the female side bolt 4 moves radially inward along the inclined surface 32 and contacts the male screw 13 of the male side metal fitting 1. To do. Then, the male screw 42 of the female bolt engages with the male screw 13 of the male metal fitting 1.

  The stronger the force of pulling the male side metal fitting 1 away from the female side metal fitting 2, the more the male side metal fitting 1 side end 43 of the female side bolt 4 moves along the tapered surface 32 of the casing 3, and the female side bolt 4 becomes male. The male screw 42 of the female-side bolt is more firmly engaged with the male screw 13 of the male-side metal fitting 1 by being firmly pressed against the side metal fitting 1.

As shown in FIG. 12, the male screw portion 42 of the female bolt 4A only needs to be formed in a region of a certain length L from the male end 43A with respect to the entire length. The length L is set in consideration of the maximum tensile force acting, the screw module, and the like.
Further, in the meshing between the male screw 13 of the male side metal fitting 1 and the male screw 42 of the female side bolt, both male screws are not necessarily required to have a common pitch, and the pitch of the male screw 13 of the male side metal fitting 1 is the female pitch. It may be an integral multiple of the pitch in the male screw 42 of the side bolt. Alternatively, one pitch need not be an exact integer multiple of the other pitch.
Since the arrangement of the screw threads in the male threads 42 of the plurality of female bolts is different, the result is the same as a stepless change in pitch. Therefore, even if the pitch of the male screw 13 of the male metal fitting 1 is different from the pitch of the male screw 42 of the female bolt, the male screw 13 of the male metal fitting 1 and the male screw 42 of the female bolt are securely connected. It meshes.

  As shown in FIGS. 12 to 18, the elastic body 43 t can be omitted at the male end 43 </ b> A of the female bolt.

FIGS. 13-18 has shown the variation of the shape in the male side edge part 43A (end part which abbreviate | omitted the elastic body 43t) of the female side volt | bolt 4. FIG.
FIG. 13 shows a type in which the male end 43B of the female bolt 4 is flat.
FIG. 14 shows a type in which the male end 43C of the female bolt 4 has a conical shape.
FIG. 15 shows a type in which a conical depression 43 </ b> D is formed at the male end of the female bolt 4.
FIG. 16 shows a type in which a hemispherical protruding portion 43E is formed at the male end of the female bolt 4.
FIG. 17 shows a type having a spherical recess 43 </ b> F at the male end of the female bolt 4.
FIG. 18 shows a type having a cylindrical recess 43G at the male end of the female bolt 4.

The end shape shown in FIGS. 14 and 16 is selected as a shape in which the female bolt 4 can easily move inward in the radial direction with respect to the inclined surface 32 (see FIG. 1) of the casing 3.
Further, the end shapes shown in FIGS. 15, 17, and 18 are selected as shapes in which the tip of the female bolt 4 is easily deformed.

FIG. 19 shows the guide plate 5 as a single item.
In FIG. 19, the guide plate 5 has a through hole 51 formed at the center of the disk-shaped member. The through hole 51 is formed in order to escape the distal end portion (left end in FIG. 1) of the male side metal fitting 1.
In FIG. 19, eight insertion holes 52 are formed on a circle PC drawn concentrically with the through hole 51 in the illustrated example. As described above, the end portion 44 (left end in FIG. 10) of the female bolt 4 is inserted into the insertion hole 52.

  As shown in FIG. 20, only one insertion hole 52 may be provided. That is, only one female bolt 4 may be provided. In that case, it is preferable to bundle the female side bolt 4 and the male side metal fitting 1 with a band 9 (see FIG. 38) described later.

  In the first embodiment shown in FIGS. 1 to 20, the insertion hole 34 of the casing 3 of the female metal fitting 2 is formed larger than the diameter of the shaft portion 11 of the male metal fitting 1, and the female bolt 4 is a guide plate. Since the relative position and relative angle of the female side metal fitting 2 and the male side metal fitting 1 are somewhat rough, the male side metal fitting 1 and the female side metal fitting 2 are smoothly coupled. I can do it.

When a strong force is required when the male side metal fitting of the coupling metal is pushed into the female side metal fitting, cracks may occur in the concrete around the coupling metal, for example, the concrete to be joined.
On the other hand, according to the coupling device according to the first embodiment, when the male metal fitting 1 is pushed into the female metal fitting 2, the male metal fitting 1 may be inserted into the insertion hole 34 of the female metal fitting 2. At this time, since the female bolt 4 does not hinder the insertion of the male metal fitting 1, it is not necessary to increase the force for pushing the male metal fitting 1 into the female metal fitting 2.
Therefore, when pushing the male side metal fitting 1 into the female side metal fitting 2, there is no fear of causing cracks or the like in the surrounding concrete. In other words, it is possible to combine while maintaining the quality of the concrete product.

  Furthermore, in 1st Embodiment, when pushing the male side metal fitting 1 into the female side metal fitting 2, since it is not necessary to use a special tool, the construction time in a field is remarkably shortened and work becomes easy.

And the thread formed on the male side metal fitting 1 and the female side bolt 4 allows any form of screw. Furthermore, what is formed in the male side metal fitting 1 and the female side bolt 4 is not limited to the thread, but may be a groove. Furthermore, any one of the male side metal fitting 1 and the female side bolt 4 may be made of a material having a predetermined hardness so as to have a smooth surface without forming irregularities such as screws and grooves.
That is, in 1st Embodiment of FIGS. 1-20, the method of engaging the male side metal fitting 1 and the female side volt | bolt 4 is various, there are many choices, and it can respond also to various to-be-coupled objects. .

Next, a second embodiment of the present invention will be described with reference to FIGS.
The second embodiment of FIGS. 21 and 22 is an embodiment in which an elastic body is also provided in the casing.

In FIG. 21, the casing generally indicated by reference numeral 3 </ b> A does not have a tapered inclined surface (portion corresponding to the inclined surface 32 in FIG. 1) at the boundary between the bottom 33 and the inner periphery 31.
An annular elastic body 7 is disposed on the bottom 33 of the casing 3A. And the guidance member 8 (refer FIG. 22) is installed adjacent to the elastic body 7. FIG. Here, the guide member 8 is a separate body from the casing 3A.
The guide member 8 has a shape obtained by removing the inside of the cylindrical shape into a truncated cone shape, and has a triangular cross section.

When the male end 43 (not shown in FIG. 21) of the female bolt 4 abuts against the inner peripheral surface (slope) 83 of the guide member 8 (the male end 43 of the female bolt 4). It moves along the slope 83 and the female bolt 4 (not shown in FIG. 21) moves radially inward toward the male metal fitting 1.
By providing the elastic body 7, even if the elastic member 43 t is not provided at the male end portion 43 of the female bolt 4, the tensile force in the connecting direction between the members to be connected is relaxed, and the seismic isolation effect is obtained. It can be demonstrated.

  Other configurations and operational effects of the second embodiment shown in FIGS. 21 and 22 are the same as those of the first embodiment of FIGS.

Next, a third embodiment will be described with reference to FIGS.
The third embodiment shown in FIGS. 23 and 24 is different from the second embodiment shown in FIGS. 21 and 22 in that the guide member 8 having a triangular cross section is formed of an elastic body and the annular elastic body 7 is omitted. Embodiment.

  In FIG. 23, the elastic body 7A has a shape obtained by removing the inner region of a flat cylinder into a truncated cone shape, and has a triangular cross section. As shown in FIG. 24, the elastic body 7A is disposed such that the outer peripheral surface 71A is in contact with the inner periphery 31 of the casing 3A and the bottom side 72A is in contact with the bottom 33 of the casing 3A.

When the end portion 43 (not shown in FIGS. 23 and 24) of the female side bolt 4 abuts on the oblique side 73A of the elastic body 7A, the female side bolt 4 (end portion 43) moves along the oblique side 73A. 1 (not shown in FIGS. 23 and 24) and moves radially inward.
The elastic body 7A is elastically deformed when a force is applied in the axial direction of the male metal fitting 1 (left and right direction in (23-S) in FIG. 23). Thereby, the force which acts on the joining direction (Axial direction of male side metal fitting 1: (23-S) of Drawing 23 left-right direction) of joined members is eased, and a seismic isolation effect is exhibited.

  Other configurations and operational effects of the third embodiment shown in FIGS. 23 and 24 are the same as those of the second embodiment shown in FIGS. 21 and 22.

FIG. 25 is a first modification of the third embodiment, and the elastic body 7 is configured in an annular shape like the elastic body 7 of the second embodiment, and the inner peripheral surface and the outer peripheral surface are parallel to each other. It is formed and has a rectangular cross section.
FIG. 26 shows a second modification of the third embodiment, in which the cross section of the elastic body 7B has a sector shape with a central angle of 90 °. That is, the inner peripheral surface of the elastic body 7B is configured by an arc having a central angle of 90 °.

24 to 26, the elastic bodies 7A, 7 and 7B and the end 43 of the female bolt 4 are in contact with the left side of each drawing.
25 and FIG. 26, in particular, in the modification of FIG. 25, when the male side metal fitting 1 is applied with a force toward the left side in (23-S) of FIG. There is a fear that power will not grow. Therefore, it is preferable to urge the female bolt 4 toward the male metal fitting 1 side (inward in the radial direction) with a band 9 or the like described later.

Next, a fourth embodiment will be described with reference to FIG.
As shown in FIG. 27, in the female side metal fitting of 4th Embodiment, it replaced with the female side volt | bolt 4 and used the nut-shaped member 4A divided into two.
Although not clearly shown in the drawing, a female screw is formed on the inner peripheral surface of the nut-like member 4A and engages with a male screw (not shown) of the male side metal fitting 1. Here, the female screw formed on the inner peripheral surface of the nut-like member 4 </ b> A may not be screwed into the male screw of the male side metal fitting 1.
Although the hexagon nut is divided into two in the drawing, the octagon nut and the round nut may be divided into a plurality of pieces.

The nut-shaped member 4A divided into two is equipped with a fastening member (band) 9. The band 9 is not for positively coupling the nut-like member 4A and the male side metal fitting 1 but is provided to prevent the nut-like member 4A from being separated and separated from the radius of the split nut 4A. Yes.
The band 9 has elasticity, and is preferably composed of, for example, a metal band or a synthetic resin.

  Other configurations and operational effects of the fourth embodiment shown in FIG. 27 are substantially the same as those of the first embodiment shown in FIGS.

Next, a fifth embodiment will be described with reference to FIG.
In the fifth embodiment shown in FIG. 28, the casing 3B is divided into two parts (38B, 39B) and joined by means such as welding W, for example.

In FIG. 28, the casing 3B is composed of two members denoted by reference numerals 38B and 39B. The members 38B and 39B are divided members when the casing 3 in the first embodiment or the fourth embodiment is divided into two at the start position of the inclined surface 32 formed on the inner peripheral side thereof. It corresponds to.
The two members 38B and 39B are integrated by welding or the like.
When the bottom portion 33 on the member 38B side is thick, if the member 38B side is processed by forging and the member 39B is formed by cutting a steel pipe, the inside is processed from a single member, for example, by deep forging. Compared with the case where the casing is formed (when the casing is configured as a single part), the labor related to machining can be reduced.

  Configurations and operational effects other than those described above are the same as those of the first and fourth embodiments described above.

Next, a sixth embodiment will be described with reference to FIGS. 29 and 30.
In the sixth embodiment of FIGS. 29 and 30, only one female bolt 4 is provided, a cylindrical guide ring 90 is provided, and only one female bolt 4 is provided in the circumferential direction of the guide ring 90. A notch (slit 91) is formed in the guide ring 90 in order to restrain the movement.

As shown in FIG. 30, a cylindrical guide ring 90 is provided so as to surround the male metal fitting 1, and a slit 91 is formed in the guide ring 90. As shown by (30-S) in FIG. 30, the slit 91 is formed in a V shape and is symmetric with respect to the central axis of the cylindrical guide ring 90 (same as the central axis of the male side metal fitting 1). Yes.
The minimum width of the end of the slit 91 on the male metal fitting 1 side (right side in FIG. 29) is substantially equal to the diameter of the female bolt 4. The slit 91 sandwiches the female side bolt 4 and restricts the movement of the female side bolt 4 in the circumferential direction of the guide ring 90.

31 and 32 show a first modification of the sixth embodiment of FIG.
The first modification of FIGS. 31 and 32 is obtained by dividing the guide ring 90 in the sixth embodiment of FIGS. 29 and 30 into two parts. 31 and 32, the respective members obtained by dividing the guide ring 90 into two parts are denoted by reference numerals 90A and 90A, respectively.
In the first modification of FIGS. 31 and 32, two female bolts 4 are provided, and are arranged between the respective members 90A and 90A obtained by dividing the guide ring 90 into two parts. In addition, FIG. 32 has shown the member 90A divided into 2 of the guide ring by itself.
Although not clearly shown, in the first modification shown in FIGS. 31 and 32, three or more female bolts 4 are provided and the guide ring 90 is divided into three or more parts.

FIG. 33 is a second modification of the sixth embodiment.
In the second modification of FIG. 33, the band 9 is provided on the outer periphery of the guide ring 90 of the sixth embodiment shown in FIGS. 29 and 30, so that the female bolt 4 moves radially outward. Thus, deviation from the guide ring 90 is prevented.
Although not shown, also in the first modification of FIGS. 31 and 32, it is preferable that the members 90A and 90A are bundled using the band 9 of FIG. 33 so that the members 90A and 90A are not separated from each other. .

According to the sixth embodiment of FIGS. 29 to 33 and the first and second modifications thereof, the number of female side bolts 4 can be reduced.
At the same time, the number of steps for attaching the female bolt 4 to the guide plate 5 can be reduced, and the work of assembling into the casing 3 can be facilitated.

Next, a seventh embodiment will be described with reference to FIG.
In the first embodiment (see FIG. 19), the insertion hole 52 of the guide plate 5 is circular. On the other hand, in the seventh embodiment shown in FIG. 34, eight insertion holes 52A formed in the guide plate 5A are formed as long holes.
The insertion hole 52A is arranged so that the short axis of the long hole extends in the radial direction of the guide plate 5A.

A modification of the seventh embodiment will be described with reference to FIG.
In the seventh embodiment of FIG. 34, as described above, the end axis of the long hole of the insertion hole 52A extends in the radial direction of the guide plate 5A. On the other hand, in the modification of FIG. 35, the long axis of the long hole constituting the insertion hole 52B is arranged so as to extend in the radial direction of the central axis of the guide plate 5B. In other words, in the modified example of FIG. 35, the end shaft of the long hole constituting the insertion hole 52B extends in the circumferential direction of the guide plate 5B.

  In the seventh embodiment of FIG. 34 and its modification, the insertion holes 52A and 52B are formed as long holes, thereby improving convenience when the eight female bolts 4 are attached to the guide plates 5A and 5B. is doing.

Next, an eighth embodiment will be described with reference to FIG.
In the eighth embodiment shown in FIG. 36, a cylindrical sleeve 52C and a circular wall 51C are provided on the guide plate 5C.
The cylindrical sleeve portion 52C is provided on the outer peripheral portion of the guide plate 5C and protrudes to the male metal fitting 1 side (right side in (36-R) in FIG. 36). The circular wall 51C is provided at a position spaced apart from the cylindrical sleeve 52C radially inward by a fixed distance (a value slightly larger than the diameter of the female bolt 4), and is on the same side as the cylindrical sleeve 52C ( It projects to the right side in (36-R) in FIG. 36 and projects the same length as the cylindrical sleeve 52C.

An annular groove 50G is formed between the circular wall 51C and the cylindrical sleeve 52C. The end 44 (see FIGS. 10 and 11) of the female bolt 4 is inserted into the annular groove 50G.
As a mode of attaching the end 44 to the groove 50G, a conventionally known technique may be applied as it is.

  The male side of the female bolt 4 is configured by inserting the end 44 of the female bolt 4 into an annular groove 50G formed between the circular wall 51C of the guide plate 5C and the cylindrical sleeve 52C. The end 44 on the side away from the metal fitting 1 (the left side in (36-R) in FIGS. 1 and 36) can have the same diameter as the shaft 41 of the female bolt 4. As a result, the shape of the female bolt 4 can be simplified, and the number of processing steps for the female bolt 4 can be reduced. Furthermore, the process of attaching the female bolt 4 to the guide plate 5C is simplified.

A ninth embodiment will be described with reference to FIGS. 37 and 38.
In the ninth embodiment shown in FIGS. 37 and 38, a plurality of notches 52D are formed in the guide plate 5D. The notch 52D is cut out from the position corresponding to the insertion hole 52 of the guide plate 5 in FIG. 19 to the outer edge of the guide plate 5D with the same width as the diameter of the insertion hole 52 outward in the radial direction. Yes. Note that the radially inner end portion of the notch 52D may be configured by a straight line instead of the semicircular shape as shown in FIG.

The female bolt 4 to be combined with the guide plate 5D of FIG. 37 will be described later with reference to FIGS. 56 and 62 to 65.
The guide plate 5D of FIG. 37 can facilitate the work of incorporating the female side bolt 4 into the guide plate 5D by appropriately selecting the female side bolt 4.

In addition, after the male side metal fitting 1 and the female side metal fitting 2 are joined, when the force that separates the male side metal fitting 1 from the female side metal fitting 2 is applied, the female side bolt 4 is radially inward along the notch 52D. Therefore, the female bolt 4 can easily approach the male screw 13 of the male metal fitting 1.
However, the guide plate 5D cannot restrain the female side bolt 4 from moving outward in the radial direction from the outer edge of the guide plate 5D. The female bolt 4 can be bundled by a band 9 as shown by 38.

The tenth embodiment will be described with reference to FIGS. 39 and 40.
In the tenth embodiment shown in FIGS. 39 and 40, a plurality of claws 53 are provided for each insertion hole 52E of the female-side bolt 4 of the guide plate 5E at positions symmetrical with respect to the center of the insertion hole 52E.

39, a claw 53 is formed in the insertion hole 52E of the female bolt 4 (not shown in FIGS. 39 and 40) of the guide plate 5E. As shown in detail in FIG. 40, the claw 53 is provided at two positions opposite to the insertion hole 52E, and protrudes radially inward toward the center of the insertion hole 52E.
The claw 53 protrudes toward the cap 30 (see FIG. 1) side of the casing 3 (left side in (39-R) in FIG. 39). And the inner peripheral side edge part (the edge part in the radial direction about the insertion hole 52E) of the two claws 53 constitutes a part of the circumference of the virtual circle VC53. The virtual circle VC53 is indicated by a dotted line in FIG. 40, and its inner diameter φ53 is substantially equal to the outer diameter of the small-diameter shaft portion 44S (see FIG. 43) in the female bolt 4S (see FIGS. 43 and 65).

FIG. 43 shows a state before and after attaching the end 43S of the female bolt 4 (female side bolt 4S of FIG. 65 to be described later in FIG. 43) to the insertion hole 52E.
Here, the end 43S of the female bolt has a truncated cone shape, and the maximum diameter at the truncated cone end 43S is smaller than the inner diameter of the insertion hole 52E, but the diameter of the virtual circle VC53 defined by the claw 53 It is set larger than φ53.

If spring steel having a relatively thin plate thickness is used as the material of the guide plate 5E, the female bolt 4S can be easily fitted into the insertion hole 52E by using, for example, a resin hammer.
Further, the female side bolt 4S after being attached to the guide plate 5E can swing the end portion on the male side metal fitting 1 side (right side in FIG. 43) relatively freely.

FIG. 41 shows an example in which three claws 53A are formed in the insertion hole 52E.
FIG. 42 shows an example in which four claws 53B are formed in the insertion hole 52E.
In the example shown in FIGS. 41 and 42, the method of inserting the female side bolt 4 (for example, the female side bolt 4S shown in FIG. 65) into the insertion hole 52E of the guide plate 5E and the operation and effect thereof are shown in FIG. This is the same as 53.

Next, an eleventh embodiment will be described with reference to FIG.
In the eleventh embodiment of FIG. 44, a notch (slit) 54 is provided at an intermediate position between adjacent insertion holes 52, and the slit 54 extends radially inward from the peripheral edge of the guide plate 5F.
In FIG. 44, the guide plate 5F has eight insertion holes 52 formed on the pitch circle PC at equal pitches. Pitch circle PC is an imaginary line indicated by a one-dot chain line in (44-S) of FIG.

A slit 54 is formed at an intermediate position between the adjacent insertion holes 52. The slits 54 extend radially inward from the peripheral edge of the guide plate 5F, and a plurality of slits 54 (eight in FIG. 44 (44-S)) are arranged radially, and the length thereof is as follows. equal.
The guide plate 5F is preferably made of spring steel. Alternatively, the guide plate 5F can be configured using a resin plate having a relatively high strength.

By providing the slit 54, a large tensile force or pressing force is applied to the female bolt 4 (not shown in FIG. 44) in the axial direction of the bolt 4 (left and right in FIG. 44 (44-R)). At this time, the outer peripheral side of the guide plate 5F is deformed as indicated by a two-dot chain line in (44-R) of FIG. As a result, the entire guide plate 5F is prevented from being deformed by the strong tensile force or pressing force.
When the entire guide plate 5 is deformed, the position of the female bolt 4 attached to the guide plate 5 is affected by the deformation, and there is a possibility that it is difficult to engage with the male screw 13 of the male metal fitting 1. To do. In the eleventh embodiment of FIG. 44, as a result of preventing the deformation of the entire guide plate 5F, each of the female side bolts 4 independently engages with the male screw 13 of the male side metal fitting 1, Adhesiveness with the male screw 13 of the male side metal fitting 1 is also improved.

Moreover, if spring steel is used for the guide plate 5F, it shows in FIGS. 1-20 by interposing a highly rigid, for example, metal spacer between the cap 30 (see FIG. 1) and the guide plate 5F. The pressing coil spring 6 required in the first embodiment can be omitted.
Although illustration is omitted, as a modification of the eleventh embodiment, if the entire guide plate 5F is made of an elastic material such as rubber, the slit 54 need not be formed.

The twelfth embodiment will be described with reference to FIGS. 45 and 46.
45, in order to ensure the engagement between the female bolt 4 and the male metal fitting 1, the guide plate 5 is pressed against the male metal fitting 1 side (right side in FIG. 45) as described above. Is preferred.
In the twelfth embodiment shown in FIGS. 45 and 46, instead of the coil spring 6 (FIG. 1), a rectangular cross section is used as an elastic body for pressing the guide plate 5 toward the male metal fitting 1 side (right side in FIG. 45). An annular resin elastic member 6A is used.
Except for the point that a ring-shaped resin elastic member 6A having a rectangular cross section is used in place of the coil spring 6, the configuration and operational effects of the twelfth embodiment of FIGS. 45 and 46 are the same as those of the first embodiment of FIGS. It is the same as the form.

FIG. 47 shows a modification of the twelfth embodiment. In the modification of FIG. 47, a donut-shaped resin elastic member 6B is used as an elastic body that presses the guide plate 5.
The cross section of the resin elastic member 6A shown in FIG. 46 is a quadrangle as shown in FIG. On the other hand, the cross-sectional shape of the donut-shaped resin elastic member 6B shown in FIG. 47 is circular or oval.
The modified example of FIG. 47 is the same as the twelfth embodiment of FIG. 47 except that a donut-shaped resin elastic member 6B is used as an elastic body that presses the guide plate 5.

A thirteenth embodiment will be described with reference to FIG.
In the thirteenth embodiment shown in FIG. 48, as an elastic body that presses the guide plate 5, a pressing elastic body 6C configured by connecting the tops of two disc springs is used.
Except for the configuration of the pressing elastic body 6C, the configuration and operational effects of the thirteenth embodiment of FIG. 48 are the same as those of the above-described embodiment.

Next, a fourteenth embodiment will be described with reference to FIG.
In FIG. 49, a groove 31a is formed in the vicinity of the end 35 of the casing 3 on the cap 30 (see FIG. 1) mounting side (left side in FIG. 49) over the entire circumference of the inner peripheral portion 31. A ring-shaped spring (or retaining ring: C ring) 6D is fitted in the groove 31a.
The ring-shaped spring (or retaining ring: C ring) 6D is made of spring steel, for example, and restricts the movement of the guide plate 5 toward the end 35 (left side in FIG. 49). The elasticity exerts an action of urging the guide plate 5 toward the male metal fitting 1 side (right side in FIG. 49). By comprising in this way, the coil spring 6 (FIG. 1) and the resin-made elastic members 6A-6C (FIGS. 45-48) become unnecessary.

The fifteenth embodiment will be described with reference to FIG.
In the fifteenth embodiment of FIG. 50, the portion 1AC of the male side fitting 1A that engages with the female side bolt 4 is made of a material having relatively low hardness (soft), and no male screw is formed on the male side fitting 1A. It is used in a smooth shape (for example, a cylindrical shape).

In FIG. 50, the female side bolt 4 is formed with a male screw 42 over substantially the entire length. On the other hand, the male side metal fitting 1A is made of a material having relatively low hardness (soft).
By configuring as such, the male screw 42 of the female side bolt 4 bites into the male side metal fitting 1A, and the female side bolt 4 and the male side metal fitting 1A are engaged.
In FIG. 50, the portion 1AC of the male side metal fitting 1A that engages with the female side bolt 4 is coated (coated) with a relatively low hardness (soft) material (for example, resin) by a considerable thickness. Is also possible.

FIG. 51 shows a modification of the fifteenth embodiment.
In the modification of FIG. 51, contrary to FIG. 50, the female member (pin: a member corresponding to the female bolt 4 in FIG. 50) 4H is made of a material having relatively low hardness (soft), and the male side The metal fitting 1 is formed with a male screw 13 as in the first embodiment.
With such a configuration, the male screw 13 of the male side metal fitting 1 bites into the outer periphery of the female side pin 4H, so that the male side metal fitting 1 and the female side pin 4H are engaged.

In the fifteenth embodiment and the modification of FIGS. 50 and 51, a plurality of grooves and / or teeth are formed instead of male threads, and irregularities are formed on the surface of the member on the side where the grooves and / or teeth are formed. May be.
Other configurations and operational effects of the fifteenth embodiment and the modification shown in FIGS. 50 and 51 are the same as those of the above-described embodiments.

Next, with reference to FIGS. 52 to 55, a sixteenth embodiment of the present invention and its modifications will be described.
Here, the sixteenth embodiment and its modification of the present invention relate to a member corresponding to the male side metal fitting 1 in FIG. 1 and a member corresponding to the female side bolt 4 in FIG. This relates to a combination of a member corresponding to the metal fitting 1 and a member corresponding to the female bolt 4.

In FIG. 52, reference numeral 4J denotes a female engagement rod, and the female engagement rod 4J corresponds to the female bolt 4 in FIG.
The engagement rod 4J on the female side is formed with a plurality of grooves 42J having a rectangular cross section, for example, only in a half region of the outer peripheral surface (the lower region in (52-L) (52-S) in FIG. 52). Has been.
Here, the cross-sectional shape of the groove 42J is not limited to a rectangle. For example, the cross-sectional shape of the groove 42J may be a triangle.

Although not shown in FIG. 52, a groove is formed over the entire circumference of the outer peripheral surface of the male metal fitting 1. Here, the shape of the groove (not shown in FIG. 52) formed over the entire circumference of the male side metal fitting 1 is, for example, a shape complementary to the groove 42J of the engagement rod 4J on the female side.
However, the shape of the groove of the male metal fitting 1 is not limited to a shape complementary to the groove 42J of the female engagement rod 4J, but is a shape that can be firmly engaged with the groove 42J of the female engagement rod 4J. If there is, there is no particular limitation. Similarly, the cross-sectional shape of the groove 42J of the engagement rod 4J on the female side is not particularly limited.
Then, the male side fitting 1 and the female engagement rod 4J are engaged with each other by engaging the groove (not shown) of the male side fitting 1 with the groove 42J of the female engagement rod 4J. The metal fitting 2 (see FIG. 1) is coupled.

FIG. 53 shows a first modification of the sixteenth embodiment.
In FIG. 53, the engagement rod 4K on the female side (member corresponding to the female bolt 4 in FIG. 1) has a curved surface 47K that engages with the male metal fitting 1. The curvature of the curved surface 47K is determined so as to be complementary to the surface shape of the male side metal fitting 1.
A groove 42K having a rectangular cross section is formed on the curved surface 47K of the engagement rod 4K on the female side.

Although not clearly shown, a groove is formed over the entire outer peripheral surface of the male side metal fitting 1. The shape of the groove (not shown in FIG. 53) formed in the male side metal fitting 1 is complementary to the groove 42K formed in the engagement rod 4K on the female side, for example.
However, if the shape of the groove in the male metal fitting 1 and the shape of the groove 42K formed in the female engagement rod 4K can be firmly engaged with the male engagement fitting 1 and the female engagement rod 4K, There is no particular limitation.
The male side metal fitting 1 and the female side metal fitting 2 (see FIG. 1) are coupled by engaging and engaging the groove in the male side metal fitting 1 and the groove 42K formed in the female engagement screw 4K.

In the second modification of the sixteenth embodiment shown in FIG. 54, the cross-sectional shape of the female engagement rod 4L (corresponding to the female bolt 4 of FIG. 1) is a quadrangle. The female engagement rod 4L has a plurality of grooves 42L formed on only one side of the quadrangle. The cross-sectional shape of the groove 42L is, for example, a rectangle, but is not particularly limited.
Although not clearly shown, the male metal fitting 1B has, for example, a regular octagonal cross-sectional shape, and has a shape complementary to the groove 42L of the engagement rod 4L on the female side, for example, on each side of the regular octagon. A groove (not shown in FIG. 54) is formed. The shape of the groove of the male side metal fitting 1B is not particularly limited.
Then, when the groove formed on the male side fitting 1B and the groove 42L formed on the female side engagement rod 4L are engaged, the male side fitting 1B and the female side engagement rod 4L are engaged with each other. The metal fitting 1B and the female metal fitting 2 are coupled.

  In the third modification shown in FIG. 55, the cross-sectional shape of the female-side engagement rod 4M (corresponding to the female-side bolt 4 in FIG. 1) is substantially square, but meshes with the male-side metal fitting 1 having a circular cross-section. The surface 47M is curved. The curvature of the curved surface 47M is set so as to be a curved surface complementary to the male side metal fitting 1. And the some groove | channel 42M is formed in the curved surface 47M, and the cross-sectional shape of the groove | channel 42M is a rectangle, for example.

The male side metal fitting 1 is formed with a groove (not shown in FIG. 55) having a cross-sectional shape complementary to the groove 42M of the engagement rod 4M on the female side, for example, over the entire circumference of the outer peripheral surface. In addition, it does not specifically limit about the cross-sectional shape of the groove | channel 42M of the groove | channel of the male side metal fitting 1, and the engagement rod 4M on the female side.
The groove of the male metal fitting 1 and the groove 42M of the female engagement rod 4M are engaged and engaged, whereby the groove of the male metal fitting 1 and the female engagement rod 4M are engaged. 1 and the female side metal fitting 2 couple | bond together.

56 to 65 show the seventeenth to nineteenth embodiments and their modifications, and relate to the structure of the end portion on the side that engages with the guide plate 5 in the female bolt 4 of FIG. .
First, the seventeenth embodiment will be described with reference to FIGS.
56 and 57, a protruding portion 44N having a small diameter with respect to the shaft portion S4 is formed at the end of the female side bolt 4N that engages with the guide plate 5 (left side in FIGS. 56 and 57). Yes. A blind hole 46N having a female screw is formed in the end surface of the projecting portion 44N. In FIGS. 56 and 57, reference numeral 45N indicates an end face (end face other than the protruding portion) at the end.

When engaging the female bolt 4N with the guide plate 5, the screw B is screwed into the blind hole 46N using the washer W.
As shown in FIG. 57, the length of the protruding portion 44N in the axial direction (the left-right direction in FIGS. 56 and 57) is the same as that of the end surface 45N of the guide plate 5 when the guide plate 5 and the end surface 45N are in contact. Is set so that a slight gap δ is generated between the opposite surface and the surface of the washer W on the guide plate 5 side. Due to the gap δ, the end of the female bolt 4N on the male metal fitting 1 side (the right side in FIGS. 56 and 57) easily swings.

Referring to FIGS. 58 and 59, an eighteenth embodiment is shown.
In the eighteenth embodiment, the protruding portion 44N in FIGS. 56 and 57 is omitted from the female-side bolt 4O. In FIG. 59, the amount by which the screw B is screwed into the female bolt 40 is set so that the tip of the screw B stops at the incomplete screw portion of the blind hole 46N. The blind hole 46N is perforated at the tip (left end in FIGS. 58 and 59) of the female bolt 40, and a female screw is formed on the inner peripheral surface thereof.
The eighteenth embodiment has an advantage that the machining at the end of the female bolt 4O can be saved in comparison with the seventeenth embodiment.
Other configurations and operational effects in the eighteenth embodiment are the same as those in the seventeenth embodiment.

60 and 61 show a modification of the eighteenth embodiment.
60 and 61, the washer W used in the eighteenth embodiment is omitted. Therefore, compared to the eighteenth embodiment, it is possible to reduce the number of parts and man-hours.
Other configurations and operational effects in the modified examples of FIGS. 60 and 61 are the same as those in the eighteenth embodiment.

62 to 65 show the nineteenth embodiment and its modifications.
In the nineteenth embodiment and its modifications, grooves 44P to 44S are formed on the guide plate side (left side in FIGS. 62 to 65) ends of the female bolts 4P to 4S, and the screws B and B in FIGS. In this embodiment, the washer W is unnecessary.

First, the nineteenth embodiment will be described with reference to FIG.
In FIG. 62, a groove 44P is formed in the vicinity of the guide plate side (left side in FIGS. 62 to 65) end 43P of the female bolt 4P over the entire circumference.
The end portion 43P is formed in a columnar shape having a smaller diameter than the shaft portion S4 of the female side bolt 4P.

As a guide plate for attaching the female bolt 4P shown in FIG. 62, a guide plate 5D shown in FIG. 37 is preferable. In that case, the width dimension of the groove 44P in the axial direction (left-right direction in FIG. 62) is set slightly larger than the thickness of the guide plate 5D.
By configuring as shown in FIG. 62, the end (not shown in FIG. 62) of the female side bolt 4P on the male side metal fitting 1 side (the right side in FIG. 62) easily swings.

FIG. 63 shows a first modification of the nineteenth embodiment.
In FIG. 63, a groove 44Q is formed in the vicinity of the guide plate side (left side in FIGS. 62 to 65) end 43Q of the female bolt 4Q over the entire circumference. The end 43Q is configured in a conical shape. The width dimension of the groove 44Q in the axial direction (left-right direction in FIG. 62) is set slightly larger than the thickness of a guide plate (not shown in FIG. 63).
As a guide plate for attaching the female bolt 4Q of FIG. 63, the guide plate 5D of FIG. 37 or the guide plate 5F of FIG. 44 is preferable.

FIG. 64 shows a second modification of the nineteenth embodiment.
In FIG. 64, a groove 44R is formed in the vicinity of the guide plate side (left side in FIGS. 62 to 65) end 43R of the female bolt 4R over the entire circumference. The end 43R has a shape combining a hemisphere and a cylindrical shape.
As a guide plate for attaching the female bolt 4R of FIG. 64, a guide plate 5D shown in FIG. 37 or a guide plate 5F shown in FIG. 44 is preferable. The width of the groove 44R is set slightly larger than the thickness of the guide plate 5D (or 5F).

FIG. 65 shows a third modification of the nineteenth embodiment.
In FIG. 65, a groove 44S is formed in the vicinity of the end 43S on the guide plate side (left side in FIGS. 62 to 65) of the female bolt 4S. The end 43S has a shape that combines a truncated cone and a cylinder.
As a guide plate for attaching the female bolt 4S of FIG. 65, a guide plate 5D shown in FIG. 37 or a guide plate 5F shown in FIG. 44 is preferable. The width of the groove 44S is set slightly larger than the thickness of the guide plate 5D (or 5F).

A twentieth embodiment will be described with reference to FIG.
The twentieth embodiment is an embodiment relating to the female engagement rod 4T (corresponding to the female bolt 4 in FIG. 1), and FIG. 66 shows the female engagement rod 4T as a single item.
The engagement rod 4T on the female side has a semicircular cross-sectional shape, and a groove 42T having, for example, a rectangular cross section is formed on the arc surface (the lower surface in FIG. 66). However, the cross-sectional shape of the groove 42T is not particularly limited.
Except for the fact that the cross-sectional shape of the engagement rod 4T on the female side is semicircular, the configuration and operational effects of the twentieth embodiment are the same as those of the previous embodiments.

A twenty-first embodiment will be described with reference to FIG.
The twenty-first embodiment is an embodiment relating to the female-side engagement rod 4U (corresponding to the female-side bolt 4 in FIG. 1), and FIG. 67 shows the female-side engagement rod 4U as a single item.
The engagement rod 4U on the female side has a regular octagonal cross section, and in FIG. 67, grooves 42U having a rectangular cross section, for example, are formed on three consecutive sides located on the lower side. The cross-sectional shape of the groove 42U is not particularly limited.
Except that the cross-sectional shape of the engagement rod 4U on the female side is a regular octagon, the configuration and operational effects of the twenty-first embodiment are the same as those of the previous embodiments.

A twenty-second embodiment will be described with reference to FIGS. 68 and 69. FIG.
The twenty-second embodiment is an embodiment according to a combination of the female engagement member 4V (corresponding to the female bolt 4 of FIG. 1) shown in FIG. 68 and the guide plate 5G shown in FIG.
In FIG. 68, the meshing member 4V on the female side has sawtooth teeth 42V formed over the entire length in the longitudinal direction. An extension portion 46V is formed on the side of the engagement member 4V on the female side to the guide plate 5G shown in FIG. 69 (the upper left side in FIG. 69). The extension 46V has the same rectangular cross section in the longitudinal direction.

  69, the guide plate 5G is formed with a plurality of insertion holes 52G into which the extension portions 46V of the meshing member 4V are inserted, as shown in FIG. The insertion holes 52 are perforated in the same rectangle as the cross-sectional shape of the extension 46V, have the same radial distance from the through hole 51 of the guide plate 5G, and are arranged at an equal pitch on the same circumference. Yes.

70 to 72 show, in cross section, the engagement state between the male side metal fitting 1 and a female side member (a member corresponding to the female side bolt 4 in FIG. 1) engaged therewith.
Here, FIG. 70 is a cross-sectional view showing a state where the female engagement rod 4L and the male metal fitting 1B are engaged in the second modification of the sixteenth embodiment shown in FIG. This is for comparison with the twenty-third embodiment of FIGS. 71 and 72.

First, the twenty-third embodiment will be described with reference to FIG.
In FIG. 71, the male side metal fitting 1C is configured by a plurality of continuous arcs whose cross-sectional shape is convexly curved toward the central axis extending in a direction perpendicular to the paper surface of FIG.
In other words, the cross-sectional shape of the male side metal fitting 1C is composed of a plurality of continuous arcs that are convex inward in the radial direction.

  In FIG. 71, the cross-sectional shape of the male side metal fitting 1C is composed of eight continuous arcs that are convex inward in the radial direction. Each of the eight arcs has a radius of curvature equal to the radius of the female side bolt 4 to be engaged, and a plurality of teeth having the same shape as the female side bolt 4 is formed over the entire circumference of the male side metal fitting 1C. Has been. However, the shape of the teeth formed on the female bolt 4 and the male metal fitting 1C is not particularly limited.

FIG. 72 shows a case where a male side metal fitting 1D having a cross-sectional shape composed of six arcs is used.
Also in FIG. 72, the curvature radius in each of the six arcs constituting the cross section of the male side metal fitting 1D is equal to the radius of the female side bolt 4 to be engaged. And the tooth | gear similar to what is formed in the female side volt | bolt 4, for example is formed over the perimeter of male side metal fitting 1D.
The shape of the teeth formed on the female side bolt 4 and the male side metal fitting 1D is not particularly limited.

A twenty-fourth embodiment will be described with reference to FIG.
As shown in FIG. 73, a groove 48W is formed in the cap 30 (see FIG. 1) side end 44W (right end in FIG. 73) of the female bolt 4W. The groove 48W is formed in parallel with the diameter at the center of the female bolt 4W in the vertical direction in FIG.
The energizing coil spring 6 is set in the groove 48W. The urging coil spring 6 is provided to urge the female bolt 4W toward the male metal fitting 1 side (left side in FIG. 73).

Since the groove 48W is formed in the female bolt 4W, and the biasing coil spring 6 is fitted in the groove 48W, the guide plate 5 (see FIG. 1) is not provided according to the twenty-fourth embodiment of FIG. However, the end of the female bolt 4W (the end on the side where the groove 48W is formed) is held by the biasing coil spring 6, and is not shown in FIG. ).
As a result, the guide plate 5 (see FIG. 1) can be omitted, the number of parts can be reduced, and the assembly effort can be reduced.

  FIGS. 74 and 75 show that the combination of the male screw on the member side corresponding to the male metal fitting 1 and the male screw on the member side corresponding to the female bolt 4 is either right-handed or left-handed. It explains that a combination of screws is also possible.

  In FIG. 74, the male screw 13 of the male metal fitting 1 and the male screw 42 of the female bolt 4 are both right-hand screws. As long as the screw modules are the same, the direction of the lead angle is parallel, and therefore, the male screw 13 of the male side metal fitting 1 and the male screw 42 of the female side bolt 4 are reliably engaged with each other without any problem.

  In FIG. 75, the male screw 13 of the male metal fitting 1 is a right screw, while the male screw of the female bolt 4 is a left screw 42L. In this case, since the two male screws 13 and 42L are circumscribed, the lead vertices are more closely meshed with each other without crossing each other.

76, the coupling according to the first embodiment described with reference to FIGS. 1 to 20 will be described in the order of steps.
In (76-1) of FIG. 76, the female side metal fitting 2 is embedded and fixed in the joint surface F1 of one to-be-coupled member M1. In this case, the insertion hole 34 is flush with the end surface of the coupled member M1.
The male side metal fitting 1 is embedded and fixed to the other coupled member M2 in a state in which only the portion engaging with the female side metal fitting 2 protrudes. Here, as for the male side metal fitting 1, the part in which the external thread 13 was formed protrudes, and the stopper 12 is embed | buried under the to-be-joined member M2.

The male side metal fitting 1 (the coupled member M2 in which the male side metal fitting 1 is embedded) is brought close to one of the coupled members M1 in which the female side metal fitting 2 is embedded.
In other words, in the male side metal fitting 1, the region to be engaged with the female side metal fitting 2 of the male screw 13 is brought close to the insertion hole 34 of the female side metal fitting 2.

In (76-2) of FIG. 76, the tip 15 of the male side metal fitting 1 is inserted into the insertion hole 34 of the female side metal fitting and pushed.
When the distal end 15 of the male metal fitting 1 is pushed into the insertion hole 34 of the female metal fitting, it is a stage before the female bolt 4 moves inward in the radial direction. The male side metal fitting 1 is easily inserted into the insertion hole 34 of the female side metal fitting with a small pushing force.

In (76-3) of FIG. 76, the stopper 12 of the male side metal fitting 1 is brought into contact with the joint surface F1 of one of the members to be coupled M1 in which the female side metal fitting 2 is embedded, and further pressing is restricted. Thereby, the insertion of the male side metal fitting 1 into the female side metal fitting 2 is completed.
Although it is not clear in (76-3) of FIG. 76, the front-end | tip 15 of the male side metal fitting 1 has penetrated the through-hole 51 of the guide plate 5 of the female side metal fitting 2 (refer FIG. 1).

  In the state shown by (76-3) in FIG. 76, if the male side metal fitting 1 is pulled away from the female side metal fitting 2 (the coupled member M2 side: the right side in FIG. 76), the male screw 13 of the male side metal fitting 1 Since the male screw 42 (see FIG. 10) of the female bolt 4 is lightly engaged, the male end 43 (see FIG. 10: right side of the female bolt 4 in FIG. 76). The end) slides along the inclined surface 32 of the casing 3 in an attempt to move to the right in FIG.

  When the end portion 43 slides along the inclined surface 32 of the casing 3, the end portion 43 moves inward in the radial direction of the casing 3, and the female side bolt 4 also moves inward in the radial direction. As a result, the male screw 13 of the male side metal fitting 1 and the male screw 42 of the female side bolt 4 are closely engaged. Thereby, the coupling | bonding of two to-be-coupled members M1 and M2 is completed.

  The present invention is particularly suitable for use in joining the segments constituting the liner of the tunnel. However, it is also useful for other applications such as building panels and reinforced concrete connections. Alternatively, the present invention can be applied to a steel segment or a cast iron segment.

  It should be noted that the illustrated embodiment is merely an example, and is not a description to limit the technical scope of the present invention.

The figure explaining the whole structure of 1st Embodiment of this invention. The figure which shows the male side metal fitting of 1st Embodiment. The figure which shows the example which formed the external thread part partially with respect to FIG. The figure which shows the example which formed the front-end | tip of the male side metal fitting flat. The figure which shows the example which formed the front-end | tip of the male side metal fitting in the cone shape. The figure which shows the example which formed the conical recessed part in the front-end | tip of a male side metal fitting. The figure which shows the example which formed the front-end | tip of the male side metal fitting in the hemisphere. The figure which shows the example which the front-end | tip of the male side metal fitting formed the spherical recessed part. The figure which shows the example which formed the cylindrical recessed part in the front-end | tip of a male side metal fitting. The figure which shows the female side volt | bolt of 1st Embodiment. The figure which shows the process of processing the one end part of a female side volt | bolt. The figure which shows the example whose male thread part of a female side volt | bolt is short. The figure which shows the example by which the edge part of the female side volt | bolt was formed flat. The figure which shows the example by which the edge part of the female side volt | bolt was formed in cone shape. The figure which shows the example which formed the conical recessed part in the edge part of a female side volt | bolt. The figure which shows the example by which the edge part of the female side volt | bolt was formed in spherical shape. The figure which shows the example which formed the spherical-shaped recessed part in the edge part of a female side volt | bolt. The figure which shows the example which formed the cylindrical recessed part in the edge part of a female side volt | bolt. The figure which shows the guide plate in 1st Embodiment. The front view which shows the modification of the guide plate of 1st Embodiment. The figure which shows the casing and elastic body of 2nd Embodiment. The perspective view of the guide member of 2nd Embodiment. The figure which shows the casing and elastic body of 3rd Embodiment. Sectional drawing of the elastic body of 3rd Embodiment. Sectional drawing which shows the modification whose cross section of an elastic body is a rectangle. Sectional drawing which shows the modification whose cross section of an elastic body is a fan shape. The figure which shows the whole structure of 4th Embodiment. Sectional drawing which shows the casing of 5th Embodiment. Sectional drawing which shows the whole structure of 6th Embodiment. The figure which shows the guide ring of 6th Embodiment. Sectional drawing which shows the 1st modification of a guide ring. The perspective view which shows the division | segmentation piece of the guide ring of FIG. Sectional drawing which shows the 2nd modification of 6th Embodiment. The figure which shows the guide plate of 7th Embodiment. The front view which shows the modification of 7th Embodiment. The figure which shows the guide plate of 8th Embodiment. The front view which shows the guide plate of 9th Embodiment. The figure which shows the whole structure of 9th Embodiment. The figure which shows the guide plate of 10th Embodiment. The elements on larger scale of FIG. The figure which shows the modification of the penetration hole of 10th Embodiment. The figure which shows the other modification of the insertion hole of 10th Embodiment. The figure which shows the process of fitting a female side volt | bolt to a guide plate in 10th Embodiment. The figure which shows the guide plate of 11th Embodiment. Sectional drawing which shows the whole structure of 12th Embodiment. The perspective view of the elastic body of 12th Embodiment. The perspective view which shows the modification of the elastic body of 12th Embodiment. The perspective view which shows the elastic body of 13th Embodiment. Sectional drawing which shows the casing of 14th Embodiment. The side view explaining the principal part of 15th Embodiment. The side view explaining the modification of 15th Embodiment. The side view explaining the principal part of 16th Embodiment. The side view explaining the principal part of the 1st modification of 16th Embodiment. The side view explaining the principal part of the 2nd modification of 16th Embodiment. The side view explaining the principal part of the 3rd modification of 16th Embodiment. The figure which shows the edge part and guide plate of the female side volt | bolt of 17th Embodiment. The figure which shows the state which the female | scalar side volt | bolt of FIG. 56 engaged with the guide plate. The figure which shows the edge part of the female side volt | bolt of 18th Embodiment. The figure which shows the state which the female | scalar side volt | bolt of FIG. 58 engaged with the guide plate. The figure which shows the modification of 18th Embodiment. The figure which shows the state which the female | scalar side volt | bolt of FIG. 60 engaged with the guide plate. The figure which shows the edge part of the female side volt | bolt of 19th Embodiment. The figure which shows the 1st modification of 19th Embodiment. The figure which shows the 2nd modification of 19th Embodiment. The figure which shows the 3rd modification of 19th Embodiment. The perspective view which shows the engagement rod by the side of the female of 20th Embodiment. The perspective view which shows the engagement rod by the side of the female of 21st Embodiment. The perspective view which shows the engagement member by the side of the female of 22nd Embodiment. The front view which shows the guide plate of 22nd Embodiment. FIG. 55 is a cross-sectional view showing the engaged state of FIG. 54. A sectional view showing a 23rd embodiment. Sectional drawing which shows another example of 23rd Embodiment The perspective view which shows 24th Embodiment. The figure explaining engagement of right screws. The figure explaining engagement of a right screw and a left screw. The figure which shows the process of the coupling | bonding of the male side metal fitting and the female side metal fitting in 1st Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Male side metal fitting 2 ... Female side metal fitting 3 ... Casing 4 ... Female side bolt 5 ... Guide plate 6 ... Coil spring 7 ... Elastic body 8 ... Induction member 9 ... Band 13 ... Male screw 30 ... Cap 32 ... Inclined surface 33 ... Bottom 42 ... Male screw 90 ... Guide ring

Claims (8)

  There are male side metal fittings and female side metal fittings, the male side metal fittings and female side metal fittings are fixed to each of the members to be fastened, and the male side metal fittings have columnar male side columnar members, The metal fitting has a casing and a female side columnar member, and the inner peripheral surface of the male side end face corner of the casing is radial if the female side columnar member in contact therewith is urged toward the male side metal fitting side. A coupling device, wherein an inclined surface or a curved surface is formed so as to move inward, and the male side columnar member and the female side columnar member are engaged with each other.   2. The coupling according to claim 1, wherein the end of the female side columnar member on the side separated from the male side end surface is supported by the plate-like member so that the male side end surface of the female side columnar member can move inward in the radial direction of the casing. apparatus.   The coupling device according to claim 1, wherein the female side columnar member is configured to be biased toward the male side metal fitting.   The male side columnar member has irregularities formed on the surface thereof, the irregularities are formed on the surface of the female side columnar member, and a plurality of female side columnar members are arranged on the same circumference. Term coupling device.   Concavities and convexities are formed only on the surface of either the male side columnar member or the female side columnar member, and the other surface is configured to be smooth. The coupling device according to any one of claims 1 to 4, wherein the coupling device is made of a softer material than the columnar member.   The coupling device according to claim 4, wherein the unevenness is configured by a screw thread, and one of the male side columnar member and the female side columnar member is a right-hand screw, and the other is a left-hand screw.   The coupling device according to any one of claims 1 to 6, wherein a member having a continuous arc-shaped cross-sectional shape is disposed in parallel with the female side columnar member and adjacent to the female side columnar member.   The coupling device according to any one of claims 1 to 7, wherein an elastic material is provided on a male side end portion of the female side columnar member and / or a male side end surface of the casing.

Images