JP2006144956A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector capable of reducing a clearance between members to be connected as much as possible and improved in connecting strength. <P>SOLUTION: A lock thread 41 of a female lock member 9 is formed of a female insert side inclined surface 41, of which diameter is shrunken from an insert side C toward a depth D side, and a female depth side inclined surface 41c, of which diameter is enlarged from an inner diameter end 41b of the insert side inclined surface 41 toward the depth D. An angle formed by a cross axis crossing an axis Y-Y of the female connecting member 9 and the female insert side inclined surface 41a is set larger than that formed by the cross axis and the female depth side inclined surface 41c. A male lock member is formed of a male insertion side inclined surface 40a, of which diameter is enlarged from an insertion side A of a male lock member 23 toward a depth B side thereof, and a male depth side inclined surface 40c, of which diameter is shrunken from an outer diameter end 40b of the insertion side inclined surface 40a toward a depth side B. An angle formed by a cross axis crossing an axis X-X of the male lock member 23 and the male insertion side inclined surface 40a is set larger than that formed by the cross axis and the male depth side inclined surface 40c. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connector.

  Conventionally, as shown in FIG. 21, as a connecting member between members, a tapered hole 201 is formed inside, and a sliding guide protrusion 202 along the axial direction is divided into the inner surface of the tapered hole 201 in the circumferential direction. A nut formed by a plurality of casings 203, a wedge nut 205 having an outer surface formed into a tapered surface along the tapered hole 201 and having an internal thread 204 engraved on the inner surface, and a compression spring 206 that presses the wedge nut 205. There is known a connector composed of 207 and a bolt 208 connected to the nut 207. When the connecting tool is connected, the bolt 208 is inserted into the nut 207 without rotating the nut 207 so that the female screw 204 of the divided wedge nut 205 is engaged with the male screw 209 of the bolt 208. The wedge nut 205 is pushed to the large diameter side against the compression spring 206, the inner diameter of the female screw hole formed by the plurality of wedge nuts 205 is increased, and the nut 207 can be inserted into a predetermined position of the bolt 208. When the insertion is finished, the female screw 204 of the wedge nut 205 is engaged with the male screw 209 of the bolt 208 by the urging force of the compression spring 206, and the nut 207 and the bolt 208 are connected.

  As shown in FIG. 22, the axial cross section of the female screw 204 of the wedge nut 205 and the male screw 209 of the bolt 208 includes both surfaces 221 a, 222 a and 221 b, 222 b of the screw threads 221 and 222 of the male screw 209 and the female screw 204. It is formed in the shape of an isosceles triangle formed on a surface inclined at the same angle and opposite side with respect to the axial direction XX. The female screw 204 and the male screw 209 are formed of coarse screws or fine screws defined by JIS.

  By the way, there is a demand to connect shield segments made of concrete, for example, using the connector configured as described above. In this case, as shown in FIG. 23, the nut 207 of the connector is provided on one shield segment 210 and the bolt 208 is provided on the other shield segment 211. When connecting, the nut 207 is inserted into the bolt 208 and the one shield segment 210 is moved and connected until it comes into contact with the other shield segment 211. The female screw 204 of the wedge nut 205 in the nut 207 is connected to the bolt 208. In this case, it is impossible to get over the thread to be finally engaged with the male screw 209, and a gap D1 is generated between the joining end surface 212 of one shield segment 210 and the joining end surface 213 of the other shield segment 211. This gap D1 is required to be as small as possible. Further, since the axial surfaces of the female screw 204 and the male screw 209 are both inclined, the locking force is small when the screw thread 221 at the tip of the male screw 209 slightly gets over the screw thread 222 of the female screw 204. There is a risk of going back one mountain.

  Further, as in the prior art, when the threads of the wedge nut 205 and the bolt 208 are formed by coarse threads or fine threads defined by JIS, a relatively large gap is generated.

  For example, in the case of the nominal diameter M24, the screw pitch is 3 mm in the case of a metric coarse screw specified in JIS, so the gap D1 is about 1.5 to 6 mm, and the screw pitch is in the case of a metric fine screw. Since it is 2 mm, 1.5 mm, or 1 mm, the gap D1 is 1 to 4 mm, 0.75 to 3 mm, or 0.5 to 2 mm.

  In the case of the nominal diameter M30, the thread pitch is 3.5 mm in the case of the metric coarse thread specified in JIS, so the gap D1 is about 1.75 mm to 7 mm. Since the pitch is 3 mm, 2 mm, 1.5 mm, or 1 mm, the gap D1 is half or twice as large as each other.

  When the gap D1 is increased as described above, there is a problem that water leaks easily between the joining surfaces 212 and 213 of the shield segments 210 and 211.

  Therefore, an object of the present invention is to provide a connecting tool that makes the gap between the members to be connected as small as possible and increases the connection strength.

In order to solve the above-mentioned problem, the invention according to claim 1 is a female coupling member having a female locking member provided with a locking portion formed of a plurality of locking peaks continuous on the inner surface side in the storage chamber. ,
It consists of a male locking member provided with a locking part consisting of a plurality of locking mountains,
By inserting the male locking member into the female coupling member, the locking hole formed by the female locking member is expanded, and then the locking hole is reduced in diameter by the biasing means. A coupling tool in which a locking portion of a female locking member and a locking portion of the male locking member are engaged with each other,
The locking mountain constituting the locking portion of the female locking member includes a female insertion-side inclined surface whose diameter decreases from the insertion side into which the male locking member is inserted toward the back side, and the insertion An orthogonal axis that is formed by a female-side inner inclined surface that expands from the inner diameter end of the side inclined surface toward the inner portion, and that is orthogonal to the axis of the female connecting member, and the female-side insertion-side inclined surface The angle with the surface is set to be larger than the angle between the orthogonal axis and the back-side inclined surface on the female side,
The locking mountain constituting the locking portion of the male locking member includes a male insertion-side inclined surface that expands from the distal end side to the back side of the male locking member, and the insertion-side inclined surface. An orthogonal axis orthogonal to the axial center of the male locking member and the male insertion-side inclined surface formed by a male-side deep inclined surface that decreases in diameter from the outer diameter end of the surface toward the inner side. Is set to be larger than the angle between the orthogonal axis and the male back-side inclined surface.

According to a second aspect of the present invention, in the first aspect of the present invention, an orthogonal axis perpendicular to the axis of the female locking member and an inclination on the female side of the locking peak of the female locking member. The angle to the surface and
The angle between the orthogonal axis orthogonal to the axis of the male locking member and the rear inclined surface on the male side of the locking mountain of the male locking member is smaller than 30 degrees and larger than 0 degrees. It is characterized by setting.

According to a third aspect of the present invention, in the first or second aspect of the present invention, an orthogonal axis perpendicular to the axis of the female coupling member and an insertion side on the female side of the locking crest of the female locking member The angle with the inclined surface, and
The angle between the orthogonal axis orthogonal to the axis of the male locking member and the insertion-side inclined surface on the male side of the locking mountain of the male locking member is set to be larger than 30 degrees. Is.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the angle of the locking crest of the female locking member and the angle of the locking crest of the male locking member are 60. It is characterized by being set to degrees.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the locking crest of the male locking member is formed in a spiral shape, and the locking crest of the female locking member is formed. It is formed by a part of a spiral.

The invention according to claim 6 is the invention according to any one of claims 1 to 4, wherein a locking mountain of the male locking member is orthogonal to an axis of the male locking member, and Formed in a ring parallel to the adjacent locking mountain,
The locking crest of the female locking member is formed by an annular part orthogonal to the axis of the female connecting member and parallel to the adjacent locking crest. .

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein an interval between adjacent locking ridges in the female locking member and an adjacent locking in the male locking member. The interval between the ridges is set to be smaller than the thread pitch with respect to the nominal diameter of the fine thread defined in JIS.

  According to the present invention, the locking peaks of the locking portions of the male locking member and the female locking member are formed in a continuous unequal triangular shape and orthogonal to the axis of the female coupling member. The angle between the orthogonal axis and the female insertion-side inclined surface is set to be larger than the angle between the orthogonal axis and the inner inclined surface, and the orthogonal axis and the insertion-side inclined surface orthogonal to the axis of the male locking member Is set to be larger than the angle between the orthogonal axis and the male-side deep inclined surface, so that the engagement of the male locking member is larger than that of a conventional thread having an isosceles triangle shape. When the toe mountain and the engaging mountain of the female locking member are engaged with each other, the meshing between the both can be fast and large, and the gap between the connected members can be reduced.

  Further, according to the invention of claim 2, while securing the tensile strength of the locking mountain, the locking portion of the female locking member and the locking portion of the male locking member are quickly and It is possible to mesh greatly and to reduce the gap between the connecting members. Therefore, for example, when the connector of the present invention is used for connecting the shield segments, water leakage between the shield segments can be prevented.

  Furthermore, according to the third aspect of the invention, when the male locking member is inserted into the female locking member, the insertion resistance is reduced and the insertion becomes easier.

  Furthermore, according to the invention described in claim 4, the cutting tip used when creating the thread of the JIS standard can be used as it is, and the manufacturing cost can be reduced.

  Furthermore, according to the invention described in claim 5, when the female locking member is divided and arranged in the circumferential direction, the female locking member is randomly selected from among the manufactured female locking members. By taking out and using it, the locking peaks of the plurality of female locking members used are not positioned on one helix, and there is a very high probability that they will be shifted axially from one helix. By this shift of the engaging crest, the meshing can be fast and the meshing amount can be increased.

  Accordingly, the shape of the locking ridge and the spiral shape combine to enable fast and strong connection.

  Furthermore, according to the seventh aspect of the present invention, by setting the interval between the locking peaks smaller than the JIS standard, the amount of play in the meshing state between the both locking peaks is reduced.

  Furthermore, the prevention of water leakage can be enhanced by reducing the gap between the connection surfaces of the connection members. Further, even when a sealing material is provided on the shield segment, the cost can be reduced by making the sealing material small.

  Further, by reducing the interval between the locking ridges as compared with that of the conventional JIS standard, it is possible to reduce the overall size of the connector, reduce the thickness of the shield segment, and reduce the cost of the connector and the shield segment. be able to.

  Further, the urging force of the urging means acts so that the locking ridge of the female locking member bites into the locking hill of the male locking member, and a force in the pulling direction acts on the male locking member. Then, since the female locking member bites in, a strong connection state is ensured even if the interval between the locking peaks is small.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described based on an embodiment shown in the drawings.

1 to 11 show a first embodiment.
1 and 2 show a female connecting member 1, and FIG. 3 shows a male connecting member 2.

  The female connecting member 1 has a casing 3, and the casing 3 is formed in a cylindrical shape, for example, a cylindrical shape, and a storage chamber 4 is formed therein. The front portion of the storage chamber 4 is formed in a conical tapered hole 5 whose inner peripheral surface is a tapered surface whose inner diameter gradually increases from the tip portion 4a side (insertion side) to the rear (back), An intermediate portion of the storage chamber 4 is formed in the biasing means storage portion 6, and a female screw 3 a is engraved on the inner periphery of the rear portion of the storage chamber 4. An insertion port (opening) 7 is formed at the front of the tapered hole 5.

  In the taper hole 5, a plurality of sliding guide protrusions 8 are formed in the circumferential direction as shown in FIG. 2A along the axis Y-Y direction of the female connecting member 1. . The sliding guide protrusion 8 may not be provided.

  Further, in the tapered hole 5, as shown in FIG. 2A, a wedge-shaped female locking member 9 that is divided into a plurality of portions in the circumferential direction is disposed between the sliding guide protrusions 8. Are slidable in the axial direction. In this embodiment, the number of the female locking members 9 is three as shown in FIG. 2A, but may be one as shown in FIG. 2B, and is arbitrarily set.

  Further, the outer surface of the wedge-shaped female locking member 9 is formed on a tapered surface 9a along the tapered surface of the tapered hole 5, that is, the outer diameter gradually increases from the tip 4a side to the rear. . Further, a locking portion 9b is formed on the inner peripheral surface of each female locking member 9 with an arc centering on the axial center (axial center of the female coupling member) YY of the casing 3 and the axial core YY. It is engraved in the direction along. Hereinafter, the female locking member 9 is also referred to as a wedge nut 9 hereinafter. Moreover, since the latching | locking part 9b is formed in a part of the spiral crest and trough centering on the axis | shaft YY in the present Example, it is also hereafter called the internal thread 9b.

  As described above, one or a plurality of wedge nuts 9 form locking holes (female screw holes) 9 c as shown in FIGS. 2A and 2B, and each wedge nut 9 extends along the tapered surface of the tapered hole 5. The female screw hole 9c is enlarged in diameter by retreating to the innermost part, and the female screw hole 9c is reduced in diameter by moving to the distal end 4a side (insertion side).

  Further, an urging means receiver (spring receiver) 10 that engages with each wedge nut 9 in common is disposed at the rear end of the wedge nut 9.

  A cover plate 11 having a screw hole 11a formed at the center is screwed to the female screw 3a at the rear of the casing 3. A biasing means 12 is accommodated between the biasing means receiver 10 and the cover plate 11 in the biasing means storage portion 6. The urging means 12 is formed of an elastic member such as a coil spring, rubber, resin, or urethane. In the first embodiment, it is housed in a compressed state using a coil spring. Each wedge nut 9 is always urged in the direction of the distal end portion 4a by the urging force of the urging means 12.

  An anchor bar 14 that protrudes rearward from the lid 11 is fixed to the lid 11 by screwing. On the rear side of the anchor bar 14, a retaining portion 14a is provided so as to protrude to the outer peripheral side.

  As shown in FIG. 1, the casing 3 is covered with an adjustment member 16 except for the front end 4 a side of the casing 3. The adjusting member 16 is made of a deformable member, for example, an elastic material such as polystyrene foam or rubber, resin, cardboard, or the like. The adjustment member 16 includes a cylindrical portion 16a that covers the entire outer periphery of the casing 3, a flange-shaped portion 16b that covers the rear portion of the cover plate 11, and an anchor bar that protrudes rearward from the inner peripheral side of the flange-shaped portion 16b. 14 and an annular protrusion 16c that is engaged with the outer periphery of the outer peripheral portion 14, and these are integrally formed and are fitted to the casing 3.

  A gap holding pipe 17 made of an elastic material such as rubber or a metal is provided on the outer periphery of the anchor bar 14, and a gap 18 is provided between the anchor bar 14 and the gap holding pipe 17. The front end of the gap holding pipe 17 is locked to the outer surface of the protrusion 16 c of the adjustment member 16, and the rear end is locked to the outer surface of the seat member 19. The seat member 19 is made of an elastic material such as rubber provided between the anchor bar 14 and the retaining portion 14 a of the anchor bar 14.

  A member similar to the adjustment member 16 may be provided along the outer surface of the anchor bar 14 without providing the gap 18.

  The female connecting member 1 is fixedly embedded in one connecting member, for example, a shield segment 15 so that the surface 4a of the tip 3 of the casing 3 is flush with the joint surface 15a of the shield segment 15. Therefore, concrete 15b is placed outside the adjusting member 16, the gap holding pipe 17, and the retaining portion 14a. Thus, even if the concrete 15b is cast, the female connecting member 1 is centered on the retaining portion 14a by providing the adjusting member 16, the gap holding pipe 17, the gap 18, and the seat member 19. As described above, it is possible to move in the radial direction perpendicular to the axis YY of the female connecting member 1.

Next, the male connection member 2 will be described.
The male connecting member 2 includes a connecting member 22 in which a female screw 22a is engraved on the inner periphery in a deformable member, for example, a cylindrical adjusting member 21 formed of an elastic material such as foamed polystyrene or rubber, resin, or cardboard. And a male screw body 23 a formed on the base side of the male locking member 23 is screwed to the tip of the connecting body 22.

  The male locking member 23 protrudes from the distal end 22b of the coupling body 22, and a dome-shaped guide portion 24 whose tip diameter is reduced is formed at the tip portion (insertion side). That is, a curved surface that guides the female locking member 9 is formed, and a locking portion 23b is engraved at the rear portion and at the front of the male screw body 23a, and the diameter of the locking portion 23b is When each said wedge nut 9 advances most, the diameter is set to be slightly larger than the diameter of the female screw hole 9c formed by these. Since the locking portion 23b is formed by spiral peaks and valleys centered on the axis XX, it is hereinafter also referred to as a male screw.

  As shown in FIG. 3, an anchor bar 30 is screwed and fixed to the rear portion of the connecting body 22. A retaining portion 30 a is provided at the rear end of the anchor bar 30. Further, on the outer periphery of the anchor bar 30, a gap holding pipe 31 made of an elastic material such as rubber or a metal is provided. The front end of the gap-holding pipe 31 is locked to the outer peripheral surface of the protrusion 21 a on the rear side of the adjustment member 21, and the rear end is rubber or the like provided on the retaining portion 30 a of the anchor bar 30. The seat member 32 is made of an elastic material. A gap 33 is provided between the anchor bar 30 and the space holding pipe 31.

  In addition, the member similar to the adjustment member 21 may be provided along the outer surface of the anchor bar 30 without providing the gap 33 like the gap 18 of the female connecting member 1.

  The adjustment member 21, the anchor bar 30, and the gap holding pipe 31 are arranged such that the front end surface 22 b of the connection body 22 is flush with the joining surface 35 a of the shield segment 35 on the other connection member, for example, the shield segment 35. A concrete 35b is placed outside the adjusting member 21, the gap retaining pipe 31, and the retaining portion 30a.

  Further, as shown in FIG. 5, a sealing material 36 projects from the joint surface 15a of the one shield segment 15, and a sealing material 37 projects from the joint surface 35a of the other shield segment 35. Yes.

  Similar to the female connection member 1, the male connection member 2 provided on the other connection member 35 is caused by the interaction of the adjusting member 21, the gap 33, the gap holding pipe 31, and the seat member 32, which are deformable members. The anchor bar 30 can be displaced in a direction perpendicular to the axis XX around the retaining portion 30a of the anchor bar 30.

Next, a connection operation will be described based on an example in which the present invention is applied to a shield segment.
First, as shown in FIG. 4, in a state where the axis YY of the female connecting member 1 and the axis XX of the male locking member 23 of the male connecting member 2 are positioned substantially coaxially, One shield segment 15 and the other shield segment 35 are brought relatively close to each other, and the male locking member 23 is inserted from the insertion port 7 of the female coupling member 1.

  When the male locking member 23 is inserted from the insertion port 7 in the female connecting member 1, the male locking member 23 retracts each wedge nut 9 against the urging force of the urging means 12 and each wedge nut. The diameter of the female screw hole 9c formed at 9 is increased, and the female screw hole 9c is inserted over the locking thread (screw thread) 41 of the locking part 9b in each wedge nut 9.

  The front end 4a surface of the casing 3 in the female connecting member 1, that is, the joining surface 15a of one shield segment 15, and the front end surface 22b of the connecting body 22 in the male connecting member 2, that is, the joining surface of the other shield segment 35. When the insertion of the male connecting member 2 is stopped by contact with 35a, each wedge nut 9 is pushed back to the front end surface 4a side by the urging force of the urging means 12, and each wedge nut is formed by the tapered surface of the tapered hole 5. The diameter of the female screw hole 9 c formed at 9 is reduced, and the female screw 9 b of each wedge nut 9 meshes with the male screw 23 b of the male locking member 23. As a result, the shield segments 15 and 35 are connected to each other.

  Next, the axial cores of both connecting members 15 and 35 are displaced, and the axial core YY of the female connecting member 1 and the axial core XX of the male connecting member 2 (male locking member 23) are The case where the male locking member 23 is inserted from the insertion port 7 in a mutually non-concentric state (misalignment state) will be described.

  When the female connecting member 1 and the male connecting member 2 are connected in this misplaced state, the female connecting member 1 is connected to the anchor bar by the adjusting member 16, the gap holding pipe 17, the gap 18, and the seat member 19. The male connecting member 2 is rotated in the direction of the side where the male connecting member 2 is located around the retaining portion 14a of the male connecting member 14, and the male connecting member 2 is similarly provided with the retaining portion 30a of the anchor bar 30 of the male connecting member 2. As the center, the female connecting member 1 is rotated in the direction of the side where the female connecting member 1 is located, and each is inserted with an inclination. That is, the adjusting members 16 and 21 in the female connecting member 1 and the male connecting member 2 are compressed in the pressurizing direction, and the casing 3 and the connecting body 22 are inclined.

  When the female connection member 1 and the male connection member 2 are connected, the axis of the female connection member 1 and the axis of the male connection member 2 are aligned.

  Thus, when both the female coupling member 1 and the male coupling member 2 rotate, the axis of the female coupling member 1 and the axis of the male coupling member 2 may be in a straight line. The connecting surface of the female connecting member 1 and the connecting surface of the male connecting member 2 are parallel to each other, and the shield segments 15 and 35 are in close contact with each other by reducing the gap between the connecting surfaces. Can be connected in contact with each other, and the connection state between the connecting members can be further enhanced. Therefore, water leakage between the shield segments 15 and 35 can be prevented.

  In addition, when the female connecting member 1 and the male connecting member 2 are in the connected state, even when the connecting members 15 and 35 are displaced due to an earthquake, the connected state is secured without opening the connecting surfaces. can do.

  Next, the locking portion (female screw) 9b of the wedge nut 9 and the locking portion (male screw) 23b of the male locking member 23 in the embodiment of the present invention will be described.

  As shown in FIG. 7A, the locking portion (male screw) 23b of the male locking member 23 is shown in FIGS. 6 to 9 in the axial direction XX of the male locking member 23. Such a plurality of locking threads (threads) 40 are formed in a shape that is continuous in the axial direction XX. The locking mountain 40 is formed in an unequal triangular shape.

  More specifically, the cross section in the axial direction XX of the locking thread (thread) 40 is an insertion-side inclined surface whose diameter increases from the insertion side A of the male locking member 23 toward the back (back) B side. 40a and a back side inclined surface 40c that is reduced in diameter from the outer diameter end (top) 40b of the insertion side inclined surface 40a toward the back B side.

  Further, the range of the angle α (FIG. 7A) of the insertion-side inclined surface 40a with respect to the orthogonal axis Z orthogonal to the axial direction XX is 30 ° <α, and in this embodiment is 55 °. Set. Further, the angle β of the rear inclined surface 40c with respect to the orthogonal axis Z orthogonal to the axial direction XX is set in a range of 0 ° <β <30 °, and preferably 0 ° <β <15. It was set to 5 ° in this example.

  Further, by setting the angle (= α + β) of the locking thread (screw thread) 40 to 60 °, cutting used to create a conventional JIS standard thread (JIS standard thread angle is 60 °). The tip can be tilted and used as it is, and the manufacturing cost can be reduced.

  Further, a locking groove (valley) formed by the locking threads (threads) 40 and the locking threads 40, 40 is a spiral shape centering on the axis XX of the male locking member 23. The interval (screw pitch) P between the adjacent locking ridges is set as described later.

Next, the locking portion (female screw) 9b of the wedge nut 9 will be described.
The locking portion 9b of the wedge nut 9 is a cross section in the axial direction of the female locking member 1, that is, the direction in which the wedge nut 9 advances and retreats (the axial direction of the female screw hole 9c) YY. As shown in FIG. 9, a plurality of locking threads (threads) 41 are formed in a shape that is continuous in the axial direction YY. The locking mountain 41 is formed in an unequal triangular shape.

  More specifically, as shown in FIG. 7B, the cross section in the YY direction of the locking thread (thread) 41 is from the insertion side C into which the locking part 23b of the male locking member 23 is inserted. An insertion-side inclined surface 41a that decreases in diameter toward the part (rear) D side, and a back-side inclined surface 41c that increases in diameter from the inner diameter end (top) 41b of the insertion-side inclined surface 41a toward the back D side. Is formed.

  Further, the angle γ (FIG. 7B) of the insertion-side inclined surface 41a with respect to the orthogonal axis Z orthogonal to the axial direction Y-Y is set in a range of 30 ° <γ. Set to 55 °.

  In addition, the angle δ of the rear inclined surface 41c with respect to the orthogonal axis Z orthogonal to the axial direction YY is set in a range of 0 ° <δ <30 °, and preferably 0 ° <δ <15 °. In this embodiment, it is set to 5 °.

  Further, similarly to the locking thread (screw thread) 40 of the locking part (male thread) 23b of the male locking member 23, the locking thread (screw thread) of the locking part (female thread) 9b of the female locking member 9 (see FIG. The manufacturing cost can be reduced by setting the angle (= γ + δ) of the thread 41 to 60 °.

  The cross-sectional shape in the YY direction of the locking groove formed between the adjacent locking threads (threads) 41 of the wedge nut 9 is the locking thread (threads) in the male locking member 23. 40 is formed in the same manner as the cross-sectional shape in the XX direction, and these are meshed with each other. Therefore, the angle of both the locking peaks 40 and 41 is formed to be the same as the angle set as desired from the above range.

  When the male locking member 23 is inserted into the female screw hole 9c formed by each wedge nut 9, the locking thread (thread) 41 of each wedge nut 9 is inserted into the inserted male mold. The locking threads (threads) 41 and the locking grooves (valleys) of each wedge nut 9 are fitted so as to fit between the locking threads (threads) 40, 40 adjacent to the locking member 23 (valleys). The male locking member 23 is formed so as to be disposed on the same spiral as that of the thread 40 and the valley.

  Next, an interval (screw pitch) P between adjacent locking threads in the female screw 9b of the wedge nut 9 and the male screw 23b of the male locking member 23 will be described.

  The thread pitch P (see FIGS. 6 and 11) of the female thread 9b of the wedge nut 9 and the male thread 23b of the male locking member 23 is formed as desired, and is a screw with respect to the nominal diameter of the fine thread defined in JIS. The pitch may be a pitch, or may be smaller than the thread pitch with respect to the nominal diameter of the fine thread defined in JIS.

  For example, when the nominal diameter is M24 (mm), the thread pitch P is 2 mm, 1.5 mm, or 1 mm in the metric fine thread of JIS B 0207. It is set to 3 mm to 0.8 mm, preferably 0.5 mm.

  Further, when the nominal diameter is M30 (mm), the screw pitch P is set to 0.3 mm to 0.8 mm, preferably 0.5 mm.

  Next, operations and effects of the female screw 9b of the wedge nut 9 and the male screw 23b of the male locking member 23 in the connected state will be described.

  The conventional JIS standard screws 204 and 209 as shown in FIG. 21 to FIG. 23 have an angle of 30 ° with respect to an axis perpendicular to the axis XX, in which both screw faces 221a, 221b and 222a, 222b are perpendicular to the axis XX. In the state where the screw thread 221 of the bolt 208 slightly gets over the screw thread 222 of the wedge nut 205 at the time of connection, the mutual engagement of the screw threads 221 and 222 is reduced.

  Therefore, for example, as shown in FIG. 24, when the back side surface 222c of the screw thread 222 of the wedge nut 205 and the back side surface 221c of the screw thread 221 of the bolt 208 are both formed perpendicular to the axis XX, the male screw 209 When the screw thread 221 passes over the screw thread 222 of the female screw 204, the inner side surface 221c of the male screw 209 and the inner side surface 222c of the female screw 204 are rapidly and greatly engaged with each other, and the gap D1 between the shield segments 210 and 211 is formed. Can be small.

  However, when formed in this way, as shown in FIG. 24, when a relative force F acts on the bolt 209 and the wedge nut 205, all the force F in the direction of removal is applied to the threads 221 and 222. In order to act directly in the axial direction XX, a large shearing force acts on the roots of the threads 221 and 222 of the bolt 209 or the wedge nut 205.

  In the present invention, as described above, the axial directions YY, X of the back side inclined surface 41c of the female screw 9b of the female locking member 9 and the back side inclined surface 40c of the male screw 23b of the male locking member 23 are as follows. Since the angles β and δ with respect to the orthogonal axis Z orthogonal to −X are set as described above, β> 0 and δ> 0, as shown in FIG. A force (disengagement force) F acting on YY is divided into F1 and F2. Therefore, the axial force XX, YY direction force F1 acting on the locking threads (threads) 40, 41 is attenuated, and the force F1 acting on the threads 40, 41 is female locking. Since it acts in the direction of the thick part of the member 9 and the male locking member 23, the threads 40 and 41 are less likely to break than the threads 221 and 222 shown in FIG. 24, and the tensile strength is increased. be able to.

  Furthermore, according to the present invention, the angles β and δ of the back side inclined surfaces 40c and 41c of the threads 40 and 41 are set to β <30 ° and δ <30 °, so that the JIS standard thread 204 shown in FIG. Compared with 209, the female screw 9b of the female locking member 9 and the male screw 23b of the male locking member 23 mesh quickly and greatly, and the gap between the shield segments 15 and 35 can be reduced. it can.

  Further, the insertion side inclined surface 40a of the screw thread 40 of the male locking member 23 and the axial direction XX, YY of the insertion side inclined surface 41a of the screw thread 41 of the female locking member 9 are orthogonal. By setting the angles α and γ with respect to the orthogonal axis Z to be as described above, the angle of the inclined surface (30 °) of the screw of JIS standard becomes larger, and the male locking member 23 is replaced with the female locking member. When inserting into 9, the insertion resistance decreases and insertion becomes easier.

  Further, the effect of forming the female screw 9b of the female locking member 9 and the male screw 23b of the male locking member 23 in a spiral shape as described above will be described.

First, the wedge nut 9 is manufactured as follows.
One cylindrical body in which the thickness of the cross section in the Y-Y direction as described above is formed in a wedge shape, and the inner periphery thereof is formed in the shape of the unequal side triangle and the spiral female screw 9b. (A single continuous cylinder in the circumferential direction) is cut in the axial direction at equal intervals in the circumferential direction, for example, at three equally spaced positions, and a plurality of, for example, three wedge nuts 9 are manufactured. Thereby, the internal thread 9b of three wedge nuts is formed by a part of spiral. The three wedge nuts 9 manufactured in this way have their threads 41 located on one spiral.

  Then, a necessary number (for example, three wedge nuts 9 in the embodiment) is taken out randomly without selecting from among the many wedge nuts 9 manufactured and stored in this manner, and inside the casing 3 as described above. Insert into.

  Here, as described above, one cylindrical body engraved with the helical female screw 9b is divided into three parts, and the wedge nut 9 itself divided into three parts is inserted into the casing 3 as it is. The thread 9b of the second wedge nut 9 (lower wedge nut 9 in FIG. 6) is an extension of the spiral of the apex 41b of the thread 9b of the first wedge nut 9 (upper wedge nut 9 in FIG. 6). That is, it is formed at a point E on an extension line indicated by a chain line in FIG.

  However, as described above, when a large number of wedge nuts 9 are stored and used, the top of the thread 9b is formed as a second wedge nut 9 as shown in FIG. There is a very high probability that a wedge nut 9 having a thread 9b displaced in the axial direction Y-Y from the point E will be used. In addition, the third wedge nut 9 also has a very high probability that the screw thread 9b is shifted as described above with respect to the screw threads of the first and second wedge nuts 9.

  In this way, when the spiral formed by each thread 41 in the first to third wedge nuts 9 is relatively displaced in the axial direction YY, as shown in FIG. 8, the screw at the tip of the male screw 23b. Even if the thread 40d is located between adjacent threads 41d and 41e in the first wedge nut 9, the thread 40d at the tip of the male screw 23b is deeper than the thread 41d in the second or third wedge nut 9. The thread 41f is engaged with the thread 41f. In the case of FIG. 8, the thread 40d of the male screw 23 meshes with the thread 41d of the first wedge nut 9E, as shown in FIG.

  Therefore, even when the spiral is relatively displaced in the axial direction YY, the amount of engagement between the male screw 23b and the female screw 9 increases, and the connection strength increases.

  Further, the meshing at the time of connection becomes faster, and the gap D2 (see FIG. 10) between the casing 3 and the connection body 22 in the connected state, that is, the gap between the shield segments 15 and 35 can be reduced.

  Next, according to the present invention, the thread pitch P between the female screw 9b of the female locking member (wedge nut) 9 and the male screw 23b of the male locking member 23 is set as desired. If it is formed smaller than the pitch of the fine thread stipulated by JIS which is normally used, the following effects can be exhibited.

  At the time of connection, each wedge nut 9 may not be able to get over the thread 41 of the male locking member 23 to be finally engaged, and in this case, the male locking member 23 includes An axial backlash occurs, and a gap D2 is generated between the casing 2 and the coupling body 22, that is, between the joint surfaces 15a and 35a of the shield segments 15 and 35, as shown in FIG.

  However, at this time, according to the present invention, the thread pitch P of the female thread 9b of the wedge nut 9 and the male thread 23b of the male locking member 23 is larger than the pitch of the fine thread defined by JIS which is normally used as described above. Is small, the rattling is extremely small.

  For example, when the nominal diameter is M24 (mm) and the screw pitch P is 2 mm as in the conventional fine thread of JIS B 0207, the gap is 1 to 4 mm as described above, whereas the present invention In the case where the nominal diameter is M24 (mm) as in the above embodiment, the gap D2 is 0.25 to 1 mm when the screw pitch P is set to 0.5 mm.

  Thus, the reduction in the gap can increase prevention of water leakage between the shield segments 15 and 35. Further, even when the sealing materials 36 and 37 are provided on the shield segments 15 and 35, the sealing materials 36 and 37 can be made small to reduce the cost.

  Further, by making the screw pitch P smaller than that of the conventional one, the radial dimension of the wedge nut 9 and the male locking member 23 can be made smaller than that of the conventional one. The size of the shield segment can be reduced, and the cost of the coupler and the shield segment can be reduced.

  Further, the urging force of the urging means 12 acts so that the female screw 9b of the wedge nut 9 bites into the male screw 23b of the male locking member 23, and a force F in the pulling direction acts on the male locking member 23. Then, since the wedge nut 9 bites in, a strong connection state is ensured even if the screw pitch P is small.

  In addition, when the sliding guide protrusion 8 is provided as described above, these can be separated by rotating either the female connection member 1 or the male connection member 2, but such separation is not possible. When unnecessary or impossible, the sliding guide protrusion 8 is not provided.

FIG. 12 shows a second embodiment.
In the second embodiment, the screw threads 40 of the male locking member 23 and the screw threads 41 of the female locking member 9 of the first embodiment are shown in FIG. It is formed on locking peaks 45 and 46 made of annular non-spiral peaks that are orthogonal to and parallel to Y. That is, the locking peaks 45 of the male locking member 23 are discontinuously formed, and the locking peaks 46 of the female locking member 9 are discontinuously formed. The locking groove 47 of the locking portion 23b of the male locking member 23 and the locking groove 48 of the locking portion 9b of the female locking member 9 are also formed in an annular shape.

  The cross-sectional shapes of the locking threads 45 and 46 in the X-X and Y-Y directions are formed in an unequal triangular shape similar to the locking threads (threads) 40 and 41 of the first embodiment.

  Furthermore, the dimension of the interval (pitch) P between the adjacent locking peaks 45 and 46 is set to a value corresponding to the dimension of the screw pitch P shown in the first embodiment.

  The male locking member 23 and the female locking member 9 of the second embodiment are also used in the same structure as that of the first embodiment. The same parts as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the description thereof is omitted.

  Also in the second embodiment, the shape of the locking ridges 45 and 46 similar to that of the first embodiment, the interval (pitch) P between the adjacent locking ridges, the adjusting members 16 and 21, etc. are provided. The following effect similar to 1 can be obtained.

  By forming the locking peaks 45 and 46 in an unequal triangle, the locking peaks 45 and 46 are secured to the tensile strength and the locking portions 9b of the female locking member 9 and the male locking member 23 are secured. The engaging portion 23b can be quickly and greatly engaged, and the gap between the shield segments 15 and 35 can be reduced. Further, when the male locking member 23 is inserted into the female locking member 9, the insertion resistance is reduced and the insertion becomes easier.

  Further, by setting the angle (= α + β) of the locking threads 45 and 46 to 60 °, a cutting tip used when creating a conventional JIS standard thread (JIS standard thread angle is 60 °) is provided. It can be used as it is, and the production cost can be reduced.

  Furthermore, since the pitch P is smaller than the pitch of the fine screw specified in JIS, the gap between the rattling and the connection becomes extremely small at the time of connection, and water leaks between the shield segments 15 and 35. Prevention can be enhanced. Further, even when the sealing materials 36 and 37 are provided on the shield segments 15 and 35, the sealing materials 36 and 37 can be made small to reduce the cost.

  Furthermore, by making the pitch P smaller than that of the conventional JIS standard, the entire connector can be downsized, the thickness of the shield segment can be reduced, and the cost of the connector and the shield segment can be reduced. .

  Further, the urging force of the urging means 12 acts so that the female screw 9 b of the wedge nut 9 bites into the male screw 23 b of the male locking member 23, and a force F in the pulling direction acts on the male locking member 23. Then, since the wedge nut 9 bites in, a strong connection state is ensured even if the screw pitch P is small.

  Further, by including the adjustment members 16, 21 and the like, the axial core YY of the female connecting member 1 and the axial core XX of the male connecting member 2 are in a mutually non-concentric state (incorrect state). Even if it couple | bonds by, both the female type | mold connection member 1 and the male type | mold connection member 2 rotate, and the axial center of the female type | mold connection member 1 and the axial center of the male type | mold connection member 2 become a straight line. The connecting surface of the female connecting member 1 and the connecting surface of the male connecting member 2 are parallel to each other, and the gap between the connecting surfaces of the shield segments 15 and 35 can be reduced, so that they are in close contact with each other. It can connect in contact and can improve the connection state of connection mutual.

13 to 14 show a third embodiment.
The third embodiment is a modification of the female connecting member 1 in the first embodiment.

FIG. 13 shows the female connecting member 51 and the male connecting member 2.
The female connecting member 51 has a casing 52, and the casing 52 is formed in a cylindrical shape, for example, a cylindrical shape, and a storage chamber 53 is formed therein. The storage chamber 53 is formed of a smooth surface 53a except for a fixed locking portion 54 described later.

  As shown in FIGS. 13 and 14, the storage chamber 53 includes a cylindrical portion formed in a cylindrical shape in the axial direction YY, and a part in the front circumferential direction of the cylindrical portion, from the axial direction YY. It is formed with a tapered hole 55 protruding outward in the radial direction. The inner peripheral surface of the tapered hole 55 is formed as a tapered surface 55a whose inner diameter gradually increases from the insertion side to the inner part, and the rear portion of the tapered hole 55 (intermediate portion of the storage chamber 53) has a biasing means storage portion. 56 is formed, and a female screw 53 a is formed on the inner periphery of the rear portion of the storage chamber 53. An insertion port (opening) 57 is formed at the front of the tapered hole 55.

  As shown in FIG. 14, the tapered hole 55 has a cross-sectional shape that is substantially fan-shaped with the axis Y of the storage chamber 53 as the center, and both end surfaces in the circumferential direction are centered on the axis Y of the storage chamber 53. Are formed on the locking surfaces 55b and 55c substantially along the radiation.

  Further, in the taper hole 55, as shown in FIG. 14, one female locking member 9 having a fan-shaped cross-sectional shape along the fan-shaped cross-sectional shape of the taper hole 55 is attached to the shaft of the casing 52. It is arranged to be slidable in the direction. The locking portion 9b of the female locking member 9 has the same shape as that of the locking portion 9b of the female locking member 9 of the first or second embodiment, and the inner side thereof is similar to the first embodiment. A locking peak 41 similar to that of the locking peak 41 or the second embodiment is formed.

  One fixed locking portion 54 is formed on the surface of the storage chamber 53 facing the female locking member 9, and the fixed locking portion 54 is formed integrally with the casing 52. . The fixed locking portion 54 is formed to have a predetermined length in the circumferential direction at a part of the storage chamber 53 in the circumferential direction. Further, a locking mountain similar to the locking portion 9 b of the female locking member 9 is engraved on the inner peripheral surface 54 a of the fixed locking portion 54.

  In the above description, only one taper hole 55 and female locking member 9 are provided on one side of the cross section of the storage chamber 53, but these are provided on one side of the cross section of the storage chamber 53. It may be located and divided into a plurality of parts in the circumferential direction. Further, the fixed locking portion 54 may be divided into a plurality in the circumferential direction.

  A locking hole 9c is formed by the locking portion 9b of the female locking member 9 and the inner peripheral surface 54a of the fixed locking portion 54, and the female locking member 9 is retracted along the tapered surface 55a. The diameter of the locking hole 9c is increased, and the locking hole 9c is reduced in diameter by moving to the insertion side.

  The locking portion 9b formed on the inner side of the female locking member 9, the locking mountain and the locking groove on the inner peripheral surface 54a of the fixed locking portion 54 are the same as those in FIGS. 6 and 11 of the first embodiment. The shape is the same as the shape of FIG.

Other structures of the female connecting member 51 are the same as those in the first embodiment.
The male connecting member 2 of the third embodiment has the same structure as the male connecting member 2 of the first or second embodiment, and the connecting method of the female connecting member 51 and the male connecting member 2 is the same as that of the first embodiment. Same as 1.

  The same members as those in the first or second embodiment are denoted by the same reference numerals, and the description thereof is omitted.

Also in the third embodiment, the same effects as in the first or second embodiment are obtained.
Furthermore, in this third embodiment, by providing the female locking member 9 in a part of the casing 52 in the circumferential direction, compared with the first embodiment provided over the entire circumference, the size of the connector can be reduced, Low cost can be achieved.

  Further, even if the female locking member 9 is provided in a part of the circumferential direction, the fixed locking portion 54 is provided on the side facing the female locking member 9. The risk of breakage of the male locking member 23 can be reduced as compared with the case where only one member 9 is provided.

15 to 19 show a fourth embodiment.
In the fourth embodiment, the female connecting member 1 is formed on a flat female connecting member 61.
As shown in FIG. 15, the female connecting member 61 is formed in a plate shape by laminating each flat plate material, and the back cover 62 which is a component constituting the female connecting member 61 is formed of a metal flat plate.

  On the surface of the back cover 62, a pair of back spacers 63, 64 have a predetermined gap D3 on the left and right sides of the central portion X1-X2 through which the male locking member 65 is inserted in the same plane. As shown in FIG. 16, they are arranged in parallel, and a gap D <b> 3 between these back spacers 63 and 64 forms a part of the storage chamber 66 as shown in FIG. 18. The back spacers 63 and 64 are formed of a metal flat plate.

  On the surface side of the pair of back spacers 63, 64, a pair of case plates 67, 68 have a predetermined gap across a central part X 1 -X 2 through which the bolt-shaped male locking member 65 is inserted. As shown in FIG. 18, a gap between the pair of case plates 67 and 68 forms a part of the storage chamber 66. Tapered surfaces 69 and 70 are formed on the inner side surfaces of the pair of case plates 67 and 68 so that the rear side (X2 side) extends outward. The pair of case plates 67 and 68 are each formed of a metal flat plate.

  On the inner side of each of the pair of case plates 67 and 68, wedge-shaped female locking members 71 and 72 are disposed, respectively. Locking portions 71a, 72a are engraved on the inner side surfaces of the female locking members 71, 72 along the insertion direction of the male locking member 65 (the X1-X2 direction). The outer surfaces of the female locking members 71 and 72 are formed as tapered surfaces 71b and 72b along the tapered surfaces 69 and 70, respectively. Further, the female locking members 71 and 72 are made of metal, and guide pins 73 and 74 project upward on the surface side.

  On the surface of the pair of case plates 67 and 68, a pair of front spacers 75 and 76 made of a metal flat plate are arranged in parallel with a predetermined gap D3 like the pair of back spacers 63 and 64. Yes. The pair of front spacers 75 and 76 are formed with guide long holes 77 and 78 through which the guide pins 73 and 74 of the female locking members 71 and 72 are slidably fitted in the front and back directions. Yes. The guide elongated holes 77 and 78 are formed so as to be inclined along the tapered surfaces 69 and 70, that is, so that the rear side extends outward. Stopper surfaces 77a and 78a are formed in front of the guide long holes 77 and 78, respectively.

  The case plates 67 and 68 are formed with urging means storage chambers 79 and 80 at the rear portions of the female locking members 71 and 72, respectively, and the storage chambers 79 and 80 are the same as in the first embodiment. The urging means 81 and 82 are accommodated. The back spacers 63 and 64 and the front spacers 75 and 76 prevent the biasing means 81 and 82 from coming off. The urging means 81 and 82 always urge the female locking members 71 and 72 forward.

  On the surface side of the pair of front spacers 75 and 76, a single front cover 83 is disposed between them. The front cover 83 is formed with a pair of guide long holes 84 and 85 that are inclined at the same position and in the same direction as the guide long holes 77 and 78. The pair of guide slots 84 and 85 penetrates the front cover 83 in the front and back direction. The front cover 83 is formed of a metal flat plate.

  A casing 86 is formed by the back cover 62, the back spacers 63 and 64, the case plates 67 and 68, the front spacers 75 and 76, and the front cover 83.

  The storage chamber 66 is a space formed by the back cover 62, the back spacers 63 and 64, the case plates 67 and 68, the front spacers 75 and 76, and the front cover 83.

  On the surface side of the front cover 83, a punching jig 87 is disposed so as to be slidable in the front-rear direction.

  The extraction jig 87 is formed of a metal flat plate having a wide locking portion 88 at the rear, and a front end locking surface 88a and a rear end locking surface 88b are formed on the locking portion 88. Further, on the back side of the punching jig 87, recesses 89 and 90 into which the guide pins 73 and 74 are fitted are formed. The lengths of the recesses 89 and 90 in the front-rear direction are substantially the same as the lengths of the guide pins 73 and 74 in the front-rear direction, and the length in the left-right direction is longer than the length of the guide pins 73 and 74 in the left-right direction. Furthermore, an operation portion 91 having a width shorter than the left and right widths of the locking portion 88 is integrally projected on the surface of the extraction jig 87.

A cover 92 is disposed on the front side of the extraction jig 87.
A guide recess 93 having an open rear surface is formed on the back side of the front cover 92, and the extraction jig 87 is fitted in the guide recess 93 so as to be movable in the front-rear direction. Further, the front end of the guide recess 93 is a front end regulating surface 93a against which the front end locking surface 88a of the extraction jig 87 abuts, and the rear end is a rear end restriction against which the rear end engagement surface 88b abuts against the extraction jig 87. It is the surface 93b. Further, a window 94 is formed in the central portion of the cover 92 so that the operation portion 91 can be moved in the front-rear direction.

  A release means 95 is formed by the guide pins 73 and 74, the guide long holes 77 and 78, the extraction jig 87, the operation portion 91, and the like.

  A mounting hole 96 is formed at a common position in each member, and a connecting member such as a screw 97 is inserted into each mounting hole 96 to integrally connect each member, thereby forming a female connecting member 61. is doing.

  The male locking member 65 has a locking portion 65b similar to the locking portion (male screw) 23b of the male locking member 23 of the first or second embodiment.

  Further, the locking portions 71a and 72a of the female connecting members 71 and 72 and the locking portion 65b of the male locking member 65 are the same as the locking peaks 40, 41, 45, and 46 of the first or second embodiment. It has a shape and a pitch P.

  Further, the adjustment member 16 of the first embodiment may be provided on both side surfaces and the rear portion of the casing 86, and by providing the adjustment member 16, the adjustment member 16 can be displaced in a direction orthogonal to X1-X2 as in the first embodiment. It becomes like this.

  Then, as shown in FIGS. 15 and 19, the one side panel of the female connection member 61 is positioned so that the insertion side end of the storage chamber 66 of the female connection member 61 is positioned on the connection side end surface 98 a of the one panel 98. 98, and a male locking member 65 is provided with a tip protruding from the connecting side end surface 99a of the other panel 99 and fixed to the other panel 99 by appropriate means.

The method of connecting the female connecting member 61 and the male locking member 65 is the same as in the first embodiment.
Next, when both panels 98 and 99 are separated from the connected state, the distal end of the operation portion 91 exposed to the cover 92 is moved rearward by manual operation to move the female locking members 71 and 72 rearward. Move. As a result, the female locking members 71 and 72 are moved to both sides by the guide elongated holes 77 and 78, and the locking holes formed by the female locking members 71 and 72 are expanded in diameter. Therefore, the male locking member 65 can be removed from the female coupling member 61, and the panels 98 and 99 can be separated by removing the male locking member 65.

  Also in the fourth embodiment, the same effects as in the first or second embodiment are obtained.

FIG. 20 shows a fifth embodiment.
In the fifth embodiment, the female connecting member 1 and the male connecting member 2 of the first or second embodiment are replaced with a plate-shaped female connecting member 100, a plate-shaped male connecting member 101, as shown in FIG. It is a thing.

  The female connecting member 100 has casings 102a and 102b. The casings 102a and 102b are formed, for example, in a rectangular parallelepiped shape, and a storage chamber 103 is formed therein. The front portion of the storage chamber 103 is formed as a tapered surface 104 whose side peripheral surface extends from the front end side to the rear (back). The distal end portion of the storage chamber 103 is opened in a flat shape to form an insertion port 102c. Further, urging means storage portions 105 and 106 are formed at the back of the storage chamber 103.

  Further, as shown in FIG. 20, two female locking members 107 and 108 are arranged opposite to each other between the tapered surfaces 104 and 104 of the storage chamber 103 at a desired distance. Outer side surfaces of the female locking members 107 and 108 are formed along the tapered surface 104, that is, outer tapered surfaces 107a and 108a that gradually expand from the front end (insertion port 102c) side to the rear side. Further, locking portions 107 b and 108 b are engraved on the inner side surfaces of the female locking members 107 and 108 in parallel with the center line of the storage chamber 103.

  The locking crests of the locking portions 107b and 108b of the female locking members 107 and 108 have an unequal triangular shape similar to the locking crest of the locking portion 9b of the female locking member 9 of the first or second embodiment. It is formed in a continuous shape as shown in the figure.

  The female locking members 107 and 108 are formed with guide elongated holes 110 and 111 penetrating the front and rear surfaces in the front-rear direction, and on the casings 102a and 102b side, guide pins 112 inserted through the guide elongated holes 110 and 111. , 113 are fixed and erected. Thus, the female locking members 107 and 108 can slide in the front-rear direction in the storage chamber 103 along the tapered surface 104.

  The urging means storage portions 105 and 106 store springs as the urging means 114 and 115 in a compressed manner, and the urging forces of the urging means 114 and 115 cause the female locking members 107 and 108 to move to the distal ends. It is always urged in the direction of the portion (insertion slot 102c).

  On the left and right sides of the casings 102a and 102b, adjustment members 16 similar to those in the first embodiment are arranged. Similarly to the first embodiment, anchor bars 116 and retaining portions 116a are provided behind the casings 102a and 102b, and an adjustment member 117 similar to the adjustment member 16 is provided on the outer peripheral portion of the anchor bar 116. Is provided.

  The male connecting member 101 includes a male locking member 120 and an anchor bar 121, which are integrally formed by pressing or casting.

  A locking portion 120a is engraved at the tip of the male locking member 120, and the locking mountain of the locking portion 120a is the locking portion 23b of the male locking member 23 of the first embodiment. Are formed in a continuous shape similar to the locking crests of the female locking member 107, the locking portions 107b and 108b of the female locking members 107 and 108, and the locking portion 120a of the male locking member 120. Are formed in a shape to mesh with each other.

  The interval between the locking peaks of the locking portions 107b and 108b of the female locking members 107 and 108 and the locking portion 120a of the male locking member 120 may be set in the same manner as in the first embodiment.

  A retaining portion 116 a is formed at the rear end portion of the anchor bar 116. An adjustment member 122 similar to the adjustment member 21 is provided on the outer peripheral portion of the anchor bar 116.

  Structures other than those described above are the same as those in the first or second embodiment, and members similar to those in the first or second embodiment are denoted by the same reference numerals and description thereof is omitted.

  Also in the fifth embodiment, the male locking member 120 of the male connecting member 101 can be connected in the same manner as in the first to fourth embodiments by inserting it from the insertion port 102a of the female connecting member 100. .

  Also in the fifth embodiment, the shapes of the locking peaks of the female locking members 107 and 108 of the female connecting member 100 and the locking portions 107b and 108b of the male locking member 120 of the male connecting member 101 are the same. Since it has the same shape as that of the first embodiment, the same effect as the connection by the locking mountain of the first embodiment can be obtained.

  In other words, by forming the locking mountain in an unequal triangular shape, while securing the tensile strength of the locking mountain, the locking portions 107b and 108b of the female locking members 107 and 108 and the male locking member 120 are secured. The engaging portion 120b can be quickly and greatly engaged, and the gap between the connecting members can be reduced. In addition, when the male locking member 120 is inserted into the female coupling member 100, the resistance is reduced and the male locking member 120 is easily inserted.

  By setting the angle of the locking thread (= α + β) to 60 °, it is possible to use the cutting tip used when creating a conventional JIS standard thread (JIS standard thread angle is 60 °). This can reduce the production cost.

  Further, by having the adjustment members 16, 112, 117, etc., the shaft core of the female connection member 100 and the shaft core of the male connection member 101 are coupled in a non-concentric state (misalignment state). In addition, when both the female coupling member 100 and the male coupling member 101 rotate, the axis of the female coupling member 100 and the axis of the male coupling member 101 can be in a straight line. The connection surface of the female connection member 100 and the connection surface of the male connection member 101 are parallel to each other, and the gap between the connection surfaces can be reduced. Accordingly, the members to be connected can be connected in close contact with each other.

The axial direction sectional view of the female type connection member in Example 1 of the present invention. (A) is the JJ sectional view taken on the line of FIG. 1, (b) is a figure at the time of providing one female type | mold connection member. The axial direction sectional view of the male type connection member in Example 1 of the present invention. FIG. 4 is an enlarged axial cross-sectional view illustrating the coupling of the female coupling member of FIG. 1 and the male coupling member of FIG. 3. The figure which shows the Example which provided the female type | mold connection member of FIG. 1, and the male type | mold connection member of FIG. 3 in the shield segment. The figure which shows the female locking member and the male locking member in Example 1 of this invention. It is sectional drawing of the locking crest in Example 1 of this invention, (a) is an expanded sectional view of the locking crest of a male type locking member, (b) is an expanded sectional view of the locking crest of a female type locking member. . The figure explaining meshing | engagement of the female locking member and male locking member of FIG. The figure which shows the meshing state of FIG. FIG. 4 is an axial sectional view in which the female coupling member of FIG. 1 and the male coupling member of FIG. 3 are coupled. The axial direction expanded sectional view in the meshing state of a female locking member and a male locking member. The figure which shows the female type | mold locking member and male type | mold locking member in Example 2 of this invention. The Example 3 of this invention, and the axial sectional view of a female type | mold connection member and a male type | mold connection member. FIG. 14 is a sectional view taken along line KK in FIG. 13. The perspective view which shows the male type locking member and female type | mold connection member in Example 4 of this invention. FIG. 16 is an exploded perspective view of the female connecting member of FIG. 15. The front view of the female type | mold connection member of FIG. The QQ sectional view taken on the line of FIG. The figure which shows the meshing state of the female type | mold locking member of 4 of the Example of this invention, and a male type | mold locking member. The perspective view which shows the male type | mold connection member and female type | mold connection member in Example 5 of this invention. The axial direction sectional view which shows the conventional connector. An axial sectional view showing a conventional male screw and a female screw. The axial direction sectional view which shows the connection state of the connector of FIG. The figure which shows the state which the latching peaks of the virtual male locking member and female locking member for explaining this invention mesh.

Explanation of symbols

1, 51, 61, 100 Female connecting member 2, 101 Male connecting member 4, 53, 66, 103 Storage chamber 9, 71, 72, 107, 108 Female locking member (wedge nut)
9b, 71a, 72a, 107b, 108b Locking part (female screw) of female locking member
9c Locking hole 12, 81, 82, 114, 115 Energizing means 23b Locking part (male screw) of male locking member
40, 45 Locking mountain of male locking member 40a Insertion side inclined surface 40c on male side Male back side inclined surface 41, 46 Locking mountain of female locking member 41a Insertion side locking slope 41c on female side Female-side back inclined surface P Interval between adjacent locking peaks (screw pitch)

Claims (7)

A female coupling member having a female locking member provided with a locking portion formed of a plurality of locking mountains continuous on the inner surface side in the storage chamber;
It consists of a male locking member provided with a locking part consisting of a plurality of locking mountains,
By inserting the male locking member into the female coupling member, the locking hole formed by the female locking member is expanded, and then the locking hole is reduced in diameter by the biasing means. A coupling tool in which a locking portion of a female locking member and a locking portion of the male locking member are engaged with each other,
The locking mountain constituting the locking portion of the female locking member includes a female insertion-side inclined surface whose diameter decreases from the insertion side into which the male locking member is inserted toward the back side, and the insertion An orthogonal axis that is formed by a female-side inner inclined surface that expands from the inner diameter end of the side inclined surface toward the inner portion, and that is orthogonal to the axis of the female connecting member, and the female-side insertion-side inclined surface The angle with the surface is set to be larger than the angle between the orthogonal axis and the back-side inclined surface on the female side,
The locking mountain constituting the locking portion of the male locking member includes a male insertion-side inclined surface that expands from the distal end side to the back side of the male locking member, and the insertion-side inclined surface. An orthogonal axis orthogonal to the axial center of the male locking member and the male insertion-side inclined surface formed by a male-side deep inclined surface that decreases in diameter from the outer diameter end of the surface toward the inner side. Is set to be larger than the angle between the orthogonal axis and the male rear inclined surface. An angle between an orthogonal axis perpendicular to the axis of the female locking member and a rear inclined surface on the female side of the locking peak of the female locking member;
The angle between the orthogonal axis orthogonal to the axis of the male locking member and the rear inclined surface on the male side of the locking mountain of the male locking member is smaller than 30 degrees and larger than 0 degrees. The connector according to claim 1, which is set. An angle between an orthogonal axis perpendicular to the axis of the female coupling member and an insertion-side inclined surface on the female side of the locking crest of the female locking member;
The angle between the orthogonal axis orthogonal to the axis of the male locking member and the insertion-side inclined surface on the male side of the locking mountain of the male locking member is set to be larger than 30 degrees. The connector according to claim 1 or 2.   The connecting tool according to any one of claims 1 to 3, wherein the angle of the locking crest of the female locking member and the angle of the locking crest of the male locking member are set to 60 degrees. .   The locking crest of the male locking member is formed in a spiral shape, and the locking crest of the female locking member is formed in a part of the spiral. Connector. Forming a locking crest of the male locking member in an annular shape perpendicular to the axis of the male locking member and parallel to the adjacent locking crest;
The locking crest of the female locking member is formed by a part of an annular shape that is orthogonal to the axis of the female coupling member and parallel to the adjacent locking crest. The coupling tool in any one of thru | or 4. The interval between adjacent locking ridges in the female locking member and the interval between adjacent locking ridges in the male locking member are set smaller than the thread pitch with respect to the nominal diameter of the fine screw defined in JIS. The coupling tool according to any one of claims 1 to 6, wherein

Images