TWI531737B - Coupled with methods of use thereof - Google Patents

Description

Connecting device and its use method

The present invention relates to a coupling device and a method of using the same, and particularly to a coupling device in which an engaging convex portion of a male member is inserted into an opening of a female member to connect the male member and the female member to each other.

Various joints for connecting the ropes used in the fishing nets were developed. Patent Document 1 discloses a fishing rope connecting device having excellent workability. As shown in FIG. 1 of the literature, the main body 1 is provided with rope connecting holes 11 and 12, and the respective connecting holes are inserted into the respective connecting holes. The rope connecting hole 11 is opened and closed in response to the rotation of the lock body 2. As shown in FIG. 3 and FIG. 4 of the literature, when the upper locking body 2 is rotated to the right, the locking piece 24 presses the upper locking tongue 14, and then the upper locking tongue 14 is restored, by the upper locking tongue 14, The locking tab 24 is positionally constrained. As shown in FIGS. 4 and 5 of the literature, when the unlocking body 3 is rotated to the left, the unlocking tongue 33 presses the upper locking tongue 14, whereby the left rotation of the upper locking body 2 can be performed (by the upper locking body 2) Rotate left, the link is restored to the state of Figure 1. In Patent Document 2, similarly to Patent Document 1, a coupling device that locks/unlocks by rotation of a member is disclosed.

Patent Document 3 discloses a wire rope joint in which divided wires are connected and liberated. Figs. 1 and 2 of the same document disclose the structure of the pin 4 of the receiving member 2 in the groove 1A of the hook member 1.

Patent Document 4 discloses a connecting member using the same shape. As shown in Fig. 1(a) of the literature, each of the joint members 10 is secured by the cord 12. The fixed portion 11 and the connecting mechanism portion 13 are configured, and the connecting mechanism portion 13 is composed of a groove 15 that is recessed from the flat surface 14 and a raised portion 16 that is raised. Further, it is disclosed that each of the connecting members 10 is connected as shown in FIG.

[Patent Literature]

[Patent Document 1] Japanese Unexamined Patent Publication No. Hei 7-12620

[Patent Document 2] Japanese Unexamined Patent Publication No. Hei 5-60265

[Patent Document 3] Japanese Patent Laid-Open Publication No. 2002-39150

[Patent Document 4] Japanese Patent Laid-Open Publication No. 2004-28150

Each of the ropes connected via the connecting member is pulled toward the opposite side in a direction away from the connecting member, and the tension state of each of the ropes is tensioned in a slightly straight line, and the connection of the ropes is required to be released. In the connecting tool disclosed in Patent Document 1, in addition to cutting one of the ropes, it is extremely difficult to quickly release the connection work of the ropes in a state of tension. In the case of the same document, this is because even if the lock body 2 is rotated left by the unlocking body 3 to open the rope connecting hole 11, it is not easy to move the rope in a tight state in the rope connecting hole 11. Thus, in order to meet the above requirements, it is desirable to provide a connector having a simple structure.

The connecting device of the present invention is provided with a plate-shaped male member (10), which a stepped portion (16) including a concave portion (11d) and a groove (18) formed in a concave shape together with the engaging convex portion (11d); and a plate-shaped female member (30) facing the aforementioned The member (10) is laminated and coupled to the male member (10), and includes a peripheral portion (31p) for surrounding an opening into which the engaging convex portion (11d) is inserted ( 34) has a portion (31a) received by the groove (18) of the male member (10) when the mother member (30) is laminated on the male member (10).

According to this configuration, the engagement between the male and female members can be easily released by disengaging the engaging convex portion of the male member from the opening of the female member. At this time, by adjusting the groove depth of the male member, it is possible to reduce the level difference between the planes of the male and female members to be laminated. In the connected state, by releasing the male and female members in the vicinity of the plane/same plane, the release of the connection between the male and female members can be smoothed. The male and female members are plate-shaped bodies, and the simplification of the structures can be achieved. If appropriate materials are selected, the durability of the male and female members can also be improved.

The engaging convex portion (11d) includes insertion of the engaging convex portion (11d) toward the opening (34) of the female member (30), and the top portion (19b) protruding from the female member (30) is good. Thereby, the connection between the male and female members can be made more complete.

In the case of further including a locking member (25, 27, 127) for locking the connection of the male member (10) and the female member (30), at the aforementioned top portion (19b) of the engaging convex portion (11d), Preferably, a through hole (15) at least partially inserted into the locking member (25, 27, 127) is provided.

The locking member (25, 27, 127) includes an insertion portion (127n) to be inserted into the through hole (15); and a base portion that is combined with the insertion portion (127n) and has a larger size than the insertion portion (127n) (127m) is better.

Preferably, the base portion (127m) is provided with an insertion hole (127h) through which the locking member is pulled apart.

The locking member (25, 27, 127) has elasticity, and the through hole (15) of the engaging convex portion (11d) is provided with an elastic member into which the locking member (25, 27, 127) is press-fitted ( 50) is better.

The aforementioned locking members (25, 27, 127) are preferably harder than the aforementioned elastic members (50). The test method of the hardness is arbitrary, and it can judge by the test of Shore hardness, for example.

The through hole (15) of the engagement convex portion (11d) preferably extends in a direction in which the male member (10) in the coupled state intersects with the lateral direction of the female member (30).

There is further provided a restriction means (27a, 27p, 127r, 36) for restricting insertion of the aforementioned locking member (25, 27, 127) into the aforementioned through hole (15) along the aforementioned locking member (25, 27, 127) Directional movement is better.

In the case where the insertion portion (127n) for inserting the aforementioned locking member (25, 27, 127) into the through hole (15) is included, the aforementioned restriction means (127r, 36) are provided by the insertion portion (127n). Preferably, at least one of the separation preventing recesses (127r) and at least one of the separation preventing projections (36) of the female member (30) are combined.

The above-mentioned female member (30) is provided with the above-mentioned anti-separation convex portion (36), and the male member (10) is configured to laminate the female member (30) to the male member (10). In this case, it is preferable not to interfere with the aforementioned detachment preventing convex portion (36) of the female member (30).

The depth of the groove (18) is substantially equal to the thickness of the aforementioned portion (31a) of the peripheral portion (31p).

The male member (10) includes a pedestal portion (111) on which the peripheral portion (31p) of the female member (30) is placed when the female member (30) is laminated on the male member (10). The pedestal portion (111) extends toward the opposite side of the groove (18) with the engagement convex portion (11d) interposed therebetween, and the pedestal portion (111) can be placed on the pedestal portion (11) and the peripheral portion (31p) The different part (32) of the aforementioned part (31a) is preferred.

Further, a covering member (40) for covering the engaging convex portion (11d) of the male member (10) which has been inserted into the opening (34) of the female member (30) is preferably provided.

The engaging convex portion (11d) includes a top portion (19b) protruding from the female member (30) by insertion of the engaging convex portion (11d) toward the opening (34), and is configured to be engaged with the engaging portion (11d). It is preferable that the tip end side of the convex portion (11d) is tapered.

The male member (10) further includes a male side mounting portion (11m), and the female member (30) further includes a female side mounting portion (31q), and the public member (10) is laminated with the parent member (30) In this case, it is preferable that the male side mounting portion (11m) and the female side mounting portion (31q) are disposed substantially in the same plane.

The method of using the connecting device of the present invention includes a plate-shaped male member (10) including an engaging convex portion (11d) having a through hole (15) at the top portion (19b), and engaging with the foregoing The convex portion (11d) together forms a step portion (16) of the concave groove (18); a plate-shaped female member (30) including an opening (34) into which the engaging convex portion (11d) can be inserted a peripheral portion (31p); and a locking member (25, 27, 127) including a coupling member (100) of the insertion portion (127n) of the through hole (15) that can be inserted into the engaging convex portion (11d) The method of use includes: laminating the female member (30) on the male member (10), and inserting the engaging convex portion (11d) of the male member (10) into the female member (30) The step of the opening (34) according to the step of receiving the portion (31a) of the peripheral portion (31p) of the female member (30) by the groove (18) of the male member (10) The aforementioned top portion (19b) of the convex portion (11d) protrudes from the female member (30); and the insertion portion (127n) of the locking member (25, 27, 127) is inserted into the engaging convex portion ( 11d) of the aforementioned top (19b) Hole (15), will be a step of locking the male coupling member (10) and the female member (30).

According to the present invention, the connection between the portions of the objects/objects connected via the connecting members of the simple structure can be easily released.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments are merely illustrative of the invention and are not intended to limit the invention. In the respective drawings, the same reference numerals will be given to the same elements, and overlapping description will be omitted. The main purpose of the drawings is to clarify the invention and to simplify it as appropriate.

<First embodiment>

The first embodiment will be described with reference to Figs. 1 to 8 . Fig. 1 is a schematic perspective view of a coupling. Figure 2 is a schematic cross-sectional view of the female member. Figure 3 is a schematic cross-sectional view of a male member. Fig. 4 is a schematic partial cross-sectional view showing a state in which the male and female members are connected. Fig. 5 is a schematic partial cross-sectional view showing a modification of the cover. Fig. 6 is a schematic partial cross-sectional view showing a modification in which a cover is not provided. Fig. 7 is a schematic partial cross-sectional view showing a modification in which a plug is provided with a folded portion. Fig. 8 is a schematic view showing a modification of the plug as a different body from the male member.

For convenience of explanation, terms indicating the direction of the front-rear direction, the vertical direction, and the left-right direction are used consistently in each drawing. Moreover, for convenience of explanation, XYZ coordinates are set for each figure, wherein the X-axis system corresponds to the above-described front-rear direction. Complement the description about the front and rear direction. The direction along the X-axis of the female member when viewed from the male member is referred to as the front side, and the direction away from the X-axis of the female member when viewed from the male member is referred to as the rear side. Similarly, the direction along the X-axis of the male member when viewed from the parent member is referred to as the front side, and the direction away from the X-axis of the male member when viewed from the parent member is referred to as the rear side. The Y-axis system corresponds to the above-described vertical direction. Z The shafting corresponds to the above-described left and right direction.

As shown in FIG. 1, the coupling 100 has a male member 10, a locking member 25, a female member 30, and a cover 40. The cover 40 is a covering member. In FIG. 1, the elements constituting the connecting device 100 are separately and separately displayed. However, as shown in FIG. 2, the cover 40 is attached to the female member 30, and in the connected state of the connecting device 100, as shown in FIG. 10 is coupled to the female member 30. Moreover, as shown in FIG. 2, the rope 201 is wound around the mother member 30, and as shown in FIG. 3, the rope 202 is also wound around the male member 10, and each of the ropes 201 and 202 is shown in FIG. The connecting device 100 connected to the female member 30 is coupled. Further, the rope to be used as the fishing net is exemplified by the object to which the connecting device 100 is coupled, but the present invention is not limited thereto, and may be any other material.

First, the structure of the male member 10 and the locking member 25 will be described. The body 11 of the male member 10 shown in Fig. 1 is formed/processed into a plate-like body having the shape shown in Fig. 1 by any method. The main body 11 is preferably formed by die casting, but may be manufactured by processing such as bending or pressing of a metal plate. Further, the body 11 is not limited to a flat plate shape, and its specific shape is arbitrary. The body 11 may be formed of a material other than metal such as a fiber reinforced resin or the like.

As shown in FIG. 1, a locking member 25 is provided on the upper surface of the body 11 of the male member 10. The locking member 25 is a member for locking the connection between the male member 10 and the female member 30, and is fixed to the upper surface of the body 11 by the fixing portion 13 of the body 11. The lock member 25 can be seen from the drawing and the description which will be described later, and the engagement convex portion 11d of the male member 10 is restricted from moving up and down in the opening 34 of the female member 30, whereby the engagement convex portion 11d is restricted from the female member 30. The opening 34 is detached. The state in which the restriction engagement projection 11d is moved up and down in the opening 34 of the female member 30 is arbitrary, and other aspects may be employed. For example, although the locking strength is lowered, a recessed portion that is recessed toward the front-rear direction of the rear side surface of the engaging convex portion 11d may be provided instead of the through hole 15 of the engaging convex portion 11d to be described later, and the recessed portion may be inserted or pressed. Lock the plug 27. Also, other various aspects can be considered.

As shown in FIG. 1, the locking member 25 has a flexible cord (belt) 26 whose base end is fixed to the body 11, and a locking plug 27 fixed to the free end of the cord 26. The locking plug 27 can also be referred to as a locking piece. The lock plug 27 is a point of consideration of the ease of insertion and removal of the above-described through hole 15 by the lock plug 27 and the stable retention of the lock plug 27 in the through hole 15, and it is desirable to use a silicone resin, a urethane resin, and elasticity. The resin or the like is made of a resin, and has flexibility and elasticity. Thereby, the ease of the connection and locking of the male member 10 and the female member 30 can be ensured, and the stability of the locking can be ensured.

As shown in Fig. 1, the body 11 is a plate-like body extending from the rear end toward the front end in the front-rear direction, and the front side portion thereof is bent into a concave shape/U-shape, and as a result, the flat plate portion 11a and the step wall are continuously provided. 11b, the flat plate portion 11c, and the engaging convex portion 11d. Further, the U-shaped portion 12 is constituted by the step wall 11b, the flat plate portion 11c, and the engaging convex portion 11d. The concave/U shape refers to the case where the male member 10 is viewed from the left and right direction. The step wall 11b extends downward in the downward direction from the front end of the flat plate portion 11a. The engaging convex portion 11d is bent upward/upward from the front end of the flat plate portion 11c and extends in the upward direction. The flat plate portion 11c is connected to the front and rear direction to connect the stepped wall 11b and the engagement convex portion 11d. Furthermore, in the step wall 11b A recessed portion 17 is provided at the center in the left-right direction. The recessed portion 17 of the male member 10 is an avoidance space provided to avoid interference between the protruding portion 31r of the female member to be described later and the stepped wall 11b.

As shown in FIG. 1, the step portion 16 is provided by the flat plate portion 11a and the step wall 11b, and a groove 18 extending in the left-right direction is provided between the step portion 16 and the engaging convex portion 11d. The groove 18 can also be referred to as a recess. The groove 18 is formed in a concave shape by the step portion 16 and the engaging convex portion 11d. The side portion of the groove 18 coincides with the step wall 11b, and the other side portion of the groove 18 coincides with the engagement convex portion 11d, and the bottom portion of the groove 18 coincides with the flat plate portion 11c. Further, between the XZ plane where the flat plate portion 11a is placed (for example, the upper surface of the flat plate portion 11a) and the XZ plane where the flat plate portion 11c is placed (for example, the upper surface of the flat plate portion 11a), there is a level difference in the vertical direction. The difference is the length of the step wall 11b in the vertical direction. The surface of the step portion 16 is an R surface, whereby the rod portion 31a to be described later can be easily inserted into the groove 18. The rod portion 31a is a portion of the female member 30 laminated on the male member 10.

1 and 3, the engaging convex portion 11d has a main body portion 19a and a top portion 19b, and has a mountain-shaped rope loop profile. The cross-sectional shape of the main body portion 19a of the XZ plane (the length of the main body portion 19a in the front-rear direction and the width of the main body portion 19a in the left-right direction) is constant in the extending direction of the engaging convex portion 11d, and does not change. The cross-sectional shape of the top portion 19b of the XZ plane (the length of the top portion 19b in the front-rear direction and the width of the main body portion 19a in the left-right direction) is reduced in accordance with the extension of the distal end side of the engaging convex portion 11d. As shown in FIG. 3, the engaging convex portion 11d has a shape in which the front end is tapered, and the engaging convex portion 11d The rear side surface 19c is gradually inclined, and is also inclined obliquely toward the front side surface 19d with respect to the rear side surface 19c. Thereby, the detachment of the engagement convex portion 11d of the male member 10 from the opening of the female member 30 can be facilitated, and in particular, it is particularly advantageous in applications (for example, fishing) where it is required to promptly release the connection. The tapered shape of the front end of the engaging convex portion 11d may also be referred to as a tapered shape. Further, the rear side surface of the engaging convex portion 11d is a surface of the four fixing front and rear sides of the engaging convex portion 11d facing the fixing portion 13.

As shown in Fig. 1, a through hole 15 extending in the front-rear direction is provided in the top portion 19b of the engaging convex portion 11d extending in the vertical direction. The width of the horizontal opening in the left-right direction of the through hole 15 is wider than the vertical opening width of the through hole 15 in the vertical direction. Therefore, the through hole 15 is horizontally long. As shown in FIGS. 1 and 4, the through hole 15 has a size corresponding to the width of the lock plug 27 in the left-right direction and the thickness in the vertical direction in order to hold the inserted lock plug 27. For example, the size of the through hole 15 is such that the lock plug 27 is pressed into the through hole 15 and held in the through hole 15. It is also possible to suppress the detachment of the lock plug 27 from the through hole 15 by increasing the friction coefficient or the like of the outer surface of the lock plug 27.

As shown in FIG. 1, the flat plate portion 11a located at the rear end of the main body 11 is provided with an opening 14 that penetrates the flat plate portion 11a in the vertical direction. The male side mounting portion to which the rope is attached is constituted by the opening 14 of the flat plate portion 11a. Further, the specific aspect of the mounting portion is arbitrary, and is not limited to the opening portion. As shown in FIGS. 1 and 3, the inner peripheral surface 11n surrounding the annular portion 11m surrounding the opening 14 is formed in an arc shape toward the inner side of the opening 14, thereby improving the sliding of the rope inserted into the fishing net or the like of the opening 14. Sex. Furthermore, the annular portion 11m is surrounded by a surrounding The peripheral portion of the opening 14.

Next, the structure of the female member 30 will be described in more detail. As shown in FIG. 1, the female member 30 is a flat frame 31 having two openings 34 and 35 separated by a beam 32. The frame body 31 is continuously formed with the rod portions 31a to 31e. The rod portion 31a extends in the left-right direction, and has a substantially rectangular parallelepiped projection 31r at the center in the left-right direction. The protruding portion 31r is a portion where the rod portion 31a protrudes in the front-rear direction. The upper surface of the protruding portion 31r is a flat surface having a width in the front-rear direction and the left-right direction, whereby the insertion plug 27 can be ideally guided to be inserted into and removed from the through hole 15 of the engaging convex portion 11d. The rod portion 31b extends linearly from the left end of the rod portion 31a in the vertical direction. The rod portion 31e extends linearly from the right end of the rod portion 31a in the vertical direction. The rod portion 31c is extended from the rear end of the rod portion 31b while being inclined obliquely in the front-rear direction, and is coupled to the rear end of the rod portion 31d. The rod portion 31d is extended while being gradually inclined from the rear end of the rod portion 31e in the vertical direction, and is coupled to the rear end of the rod portion 31c. Further, in the center of the beam 32 in the left-right direction, a projecting portion 32m having a substantially rectangular parallelepiped shape is provided. The protruding portion 31m is a portion where the beam 32 protrudes in the front-rear direction and the vertical direction.

The opening 34 is surrounded by the annular portion 31p formed by the rod portion 31a, the rod portion 31b, the beam 32, and the rod portion 31e. The annular portion 31p is a peripheral portion surrounding the surrounding opening 34, and has a substantially rectangular shape in a viewing angle. The opening 35 is surrounded by the annular portion 31q formed by the rod portions 31c and 31d and the beam 32. The annular portion 31q surrounds a portion surrounding the opening 35, and its viewing angle is slightly triangular in shape. Further, as shown in Fig. 2, in the opening 34 of the annular portion 31p, the cover 40 is inserted and fixed, and the opening of the annular portion 31q is opened. The mouth 35 is inserted with a cord 201. The female side mounting portion of the mounting rope is constituted by the opening 35 provided in the casing 31. As shown in FIG. 1 and FIG. 2, the inner peripheral surface 31n surrounding the annular portion 31q surrounding the opening 35 is formed in an arc shape toward the inner side of the opening 35, thereby improving the sliding of the rope inserted into the fishing net or the like of the opening 35. Sex. Further, the annular portion 31q surrounds the peripheral portion of the surrounding opening 35.

As shown in Fig. 1, the thin end portion 32p extending from the right end of the beam 32 along the inner peripheral surface of the annular portion 31p to the protruding portion 31r is provided inside the annular portion 31p. Similarly, the thin portion 32q extending from the left end of the beam 32 along the inner circumferential surface of the annular portion 31p to the protruding portion 31r is provided inside the annular portion 31p. The thin portions 32p and 32q are thinner than the annular portion 31p, and are provided on the inner side surface of the annular portion 31p so as to be stepped from the annular portion 31p. The beam 32, the thin portion 32p, and the thin portion 32q constitute an annular pedestal having a mounting surface on which the cover 40 can be placed. The aforementioned annular pedestal has a notch corresponding to the protruding portion 31r.

Next, the structure of the cover 40 will be described. By providing the cover 40 to the female member 30, the engaging convex portion 11d of the male member 10 inserted into the opening 34 of the 30 is covered, and the body of the engaging convex portion 11d can be protected, and seaweed foreign matter such as kelp buds can be suppressed. It enters the gap between the engaging convex portion 11d and the annular portion 31p. Further, as in the modification shown in FIG. 6, the cover 40 may be omitted.

As shown in FIG. 1, the cover 40 is a housing for accommodating the engaging convex portion 11d of the male member 10, and is preferably an elastic material such as a resin such as a silicone resin, a urethane resin or an elastomer resin. Composition. Together with the map 1. Fig. 2 and Fig. 4, the cover 40 has a peripheral wall 41 that surrounds the left, front, and right side faces of the main body portion 19a of the engaging convex portion 11d of the male member 10; and the surrounding male member 10 All of the four side faces of the top portion 19b of the engaging convex portion 11d cover the upper covering portion 42 of the top portion 19b of the engaging convex portion 11d. The cover 40 also has a claw portion 43, whereby one body of the body 30 can be secured.

The claw portion 43 has a base portion that extends in the vertical direction and a hook that bends the lower end of the base portion toward the front side. The cover 40 is attached to the female member 30 by hooking the hook of the claw portion 43 to the lower surface of the protruding portion 31r. As shown in FIGS. 1 and 2, a hook facing the outside is provided at the lower end of the peripheral wall 41 similarly to the claw portion 43. As shown in FIGS. 1 and 2, the lower end hook of the peripheral wall 41 extends in a downward viewing angle similarly to the peripheral wall 41 so as to surround the engaging convex portion 11d of the male member 10. The lower end hook of the peripheral wall 41 hooks the lower surface of the thin portion 32p, the thin portion 32q, and the protruding portion 32m. The hook of the claw portion 43 and the hook of the peripheral wall 41 are hooked on the lower surface of the portion surrounding the female member 30 surrounding the opening 34, so that the left and right portions of the opening 34 are prevented from coming off the detachment of the cover 40 from the female member 30. The configuration enables the cover 40 to be more rigidly attached to the female member 30. Since the cover 40 can be deformed in response to an external force, the cover 40 can be attached or detached to the female member 30 by deforming the cover 40 by a hand, a tool, or the like. The position/range for providing the claw portion 43 is arbitrary, and the figure is only an example. The specific configuration of the detachment prevention is arbitrary, and is not limited to the hook hook structure.

As shown in FIG. 2, the front rear side wall of the four side walls of the cover 40 is provided with openings 44, 45 provided corresponding to the through holes 15 of the engaging convex portion 11d. . Similarly to the through hole 15 , the opening 44 and the opening 45 have a size corresponding to the width of the lock plug 27 in the left-right direction and the thickness in the vertical direction. As shown in FIG. 1, a notch corresponding to the protruding portion 32m is provided on the outer circumferential surface of the covering portion 42 provided with the opening 45, and the notch is inserted into the notch 32m, whereby the integrity of the cover 40 and the female member 30 can be improved. This description regarding the protruding portion 32m can also be applied to the protruding portion 31r. That is, the protruding portion 31r is fitted to the notch provided on the front side surface of the cover, whereby the integrity of the cover 40 and the female member 30 can be improved.

Here, a method of connecting different portions of two different ropes/same ropes using the joint 100 will be described. First, as shown in FIG. 2, the cover 40 is inserted into the opening 34 of the female member 30, and the cover 40 is attached to the female member 30. Next, one end of the cord 201 is passed through the opening 35 of the female member 30, and one end is fixed to the other portion of the cord 201 in an arbitrary manner, thereby closing the loop of the rope surrounding the annular portion 31q. Next, as shown in Fig. 3, one end of the rope 202 is passed through the opening 14 of the male member 10, and one end is fixed to the other portion of the rope 202 in an arbitrary manner, whereby the loop of the rope surrounding the annular portion 11m is closed. . Next, as shown in FIG. 4, the engaging convex portion 11d of the male member 10 is fitted to the opening 34 of the female member 30, and the male member 10 and the female member 30 are laminated. Then, as shown in FIG. 4, the locking plug 27 of the locking member 25 of the male member 10 is sequentially inserted into the opening 44 of the cover 40, the through hole 15 of the engaging convex portion 11d, and the opening 45 of the cover 40. Thus, the male member 10 is coupled to the female member 30, and the connection between the male member 10 and the female member 30 is locked. The unlocking of the connection between the male member 10 and the female member 30 can be performed by pulling out the locking plug 27 from the through hole 15.

As described above, in the present embodiment, the male member 10 and the female member 30 are coupled by the fitting of the engaging convex portion 11d of the male member 10 and the opening 34 of the female member 30. In this case, the engagement of the male member 10 and the female member 30 can be easily released by detaching the engaging convex portion 11d of the male member 10 from the opening 34 of the female member 30. Even when the cord 202 attached to the male member 10 and the cord 201 attached to the female member 30 are pulled in opposite directions from each other in a direction separating from the coupling member 100, the engaging member of the male member 10 is convex. The portion 11d is detached from the opening 34 of the female member 30, and the connection between the male member 10 and the female member 30 can be easily released. In this case, it is not necessary to cut off one of the ropes.

Further, in the present embodiment, as shown in FIG. 4, the rod portion 31a of the annular portion 31p of the female member 30 laminated on the male member 10 is received by the groove 18 of the male member 10. In other words, the rod portion 31a is received by the space between the engaging convex portion 11d of the male member 10 and the step portion 16 of the male member 10. Thereby, as shown in FIG. 4, when the male member 10 and the female member 30 are joined/stacked, the flat plate portion 11a of the male member 10 and the female member 30 can be positioned in the same XZ plane. More specifically, by adjusting the depth of the groove 18, it is possible to reduce the plane of the horizontal difference between the plane PL10 where the male member 10 illustrated in FIG. 4 is located and the plane PL30 where the parent member 30 is located. Interval. Therefore, as will be understood from the description below, the male member 10 can be easily released even when the ropes 201 and 202 are strongly pulled toward the opposite side on the same straight line in the direction separating from the connecting device 100. The connection of the female member 30. Furthermore, in FIG. 4, the plane PL10 in which the male member 10 is placed is set in the flat plate portion 11a of the male member 10. The center of the thickness is set to the center of the thickness of the frame 31 of the female member 30, but may be any other XZ plane. Furthermore, the XY plane refers to a plane that exists in counts along the Y-axis direction.

As described above, by making the plane PL10 and the plane PL30 close to or coincide with each other, even if the ropes 201 and 202 are strongly drawn toward the opposite side on the same straight line in the direction separating from the coupling tool 100, it is possible to easily The connection of the male member 10 and the female member 30 is released. It is assumed that the point at which the rope 202 acts on the annular portion 11m of the male member 10 is on the plane PL10, and the point at which the rope 201 acts on the annular portion 31q of the female member 30 is on the plane PL30, if the plane PL10 coincides with the plane PL30 , then the points of action are on the same line. In this case, if there is no external force, the male member 10 and the female member 30 are not displaced in the up-and-down direction away from the same plane. Therefore, it is possible to suppress the engagement of the locking plug 27 from the male member 10 extremely difficult. The through hole 15 of the convex portion 11d is pulled out. Therefore, according to the above configuration, even if the ropes 201 and 202 are strongly pulled toward the opposite side on the same straight line in the direction away from the coupling device 100, the male member 10 and the female member can be easily released. The connection of the members 30. This is particularly advantageous in the use of fishing nets to each other. This makes it possible to solve the problem that it is necessary to cut the rope in the past, and to ensure the quickness/easiness of the connection and release of the rope passing through the joint 100.

In the present embodiment, in view of the above, the depth of the groove 18 is set to be the same as the thickness of the flat portion 11a of the male member 10 in the vertical direction and the thickness of the frame 31 of the female member 30 in the vertical direction. unit The thickness of the upper and lower directions 31a is equal, and the plane PL10 where the male member 10 is placed coincides with the plane PL30 where the female member 30 is located. Further, in this case, as shown by the dotted line in Fig. 4, the upper surface of the rod portion 31a and the upper surface of the flat plate portion 11a are the same surface (located on the same XZ plane). The lower surface of the rod portion 31a and the lower surface of the flat plate portion 11a also have the same surface (located on the same XZ plane).

In the present embodiment, the engaging convex portion 11d of the male member 10 is formed in a tapered shape. Thereby, the operation of detaching the engaging convex portion 11d of the male member 10 from the opening 34 of the female member 30 can be facilitated, and the connection between the male member 10 and the female member 30 can be quickly released.

In the present embodiment, the lock member 25 is provided in the male member 10. Thereby, the space in which the groove 18 is provided can ensure the length of the lock member 25 in the front-rear direction, and the length of the entire joint of the state in which the male member 10 and the female member 30 are connected can be shortened.

A modification will be described with reference to Fig. 5 . As shown schematically in FIG. 5, the cover 40 can also be mounted to embed the female member 30. In the case shown in FIG. 5, in order to omit the above-described claw portion 43, the following configuration is employed. A concave portion 31r5 is provided on the inner side surface of the protruding portion 31r, and a concave portion 32m5 is provided on the inner side surface of the protruding portion 32m. The lower end of the front side wall of the cover 40 is fitted into the recess 31r5 of the protruding portion 31r, and the lower end of the rear side wall of the cover 40 is fitted into the recess 32m5 of the protruding portion 32m. The cover 40 is desirably suppressed from being detached from the female member 30 by closing the tab 31r6 of the recess 31r5 from above and the tab 32m6 closing the recess 32m5 from above. Even in the case of using such a different mounting aspect, the same effects as the above structure can be obtained. Furthermore, setting the recess The positions/ranges of 31r5 and 32m5 are arbitrary, and the recesses 31r5 and 32m5 may be continuous in the circumferential direction of the opening 34. When the cover 40 is attached to the female member 30, the cover 40 may be compressed toward the inner side of the opening 34 between the projections 31r, 32m.

A modification will be described with reference to Fig. 6 . As shown schematically in Fig. 6, the cover 40 may not be attached to the female member 30, and the cover 40 may be omitted. Even in this case, the same effects as the above structure can be obtained.

A modification will be described with reference to Fig. 7 . As shown in FIG. 7, a folded-back portion 27a may be provided on the upper surface of the front end portion 27m of the lock plug 27 that protrudes from the outlet of the through hole 15 of the engaging convex portion 11d of the male member 10. The folded portion 27a is a restricting means/restricting structure for restricting the movement of the locking plug 27 inserted into the through hole 15 rearward. By providing the folded portion 27a, it is possible to effectively prevent the lock plug 27 from being detached from the through hole 15 of the engaging convex portion 11d by its own weight or the like. The lock plug 27 has flexibility and elasticity as described in the above embodiment. Therefore, even if the folded portion 27a is provided to the lock plug 27, the insertion work of the lock plug 27 into the through hole 15 of the engaging convex portion 11d is not hindered. The specific size, shape, and number of the folded-back portions 27a are set so that the detachment of the lock plug 27 can be appropriately suppressed, and the speed/easiness of insertion of the lock plug 27 into the through hole 15 of the engagement convex portion 11d is preferably not improved. . The folded portion 27a may be an island portion or a long portion that is long in the left and right direction. The number of the folded portions 27a is arbitrary, and may be one or two or more.

As shown in FIG. 7, the folded portion 27a is a convex portion provided on the upper surface of the locking plug 27, and the sectional shape of the folded portion 27a is directed toward the locking plug 27. The triangular shape of the rear side is lowered. The folded portion 27a has an inclined surface 27a1 that faces the front end side of the lock plug 27, and an inclined surface 27a2 that faces the rear end side of the lock plug 27. Each of the front inclined surface 27a1 and the rear inclined surface 27a2 is inclined upward from the front end side of the lock plug 27 in response to separation from the upper surface of the lock plug 27, and then intersects. The angle formed by the front inclined surface 27a1 with respect to the Y-axis is larger than the angle formed by the rear inclined surface 27a2 with respect to the Y-axis. As shown in FIG. 7, the rear inclined surface 27a2 is opposed to the engaging convex portion 11d and the lid 40 which are disposed on the male member 10.

Even in the state shown in FIG. 7, the locking plug 27 is pulled rearward by the weight of the locking plug 27, and the folded portion 27a is also hooked to the cover 40 and the engaging convex portion 11d, thereby effectively The suppression of the inadvertent detachment of the lock plug 27 is suppressed. When the locking plug 27 is inserted into the through hole 15 of the engaging convex portion 11d in order to form the state shown in FIG. 7, the guide folded portion 27a is inserted into the through hole 15 by the front inclined surface 27a1 of the folded portion 27a. . Therefore, the speed/easiness of insertion of the lock plug 27 toward the through hole 15 is not impaired. Since the folded portion 27a is made of the same material as the locking plug 27, the folded portion 27a itself can be elastically deformed. When the lock plug 27 is pulled out from the state shown in FIG. 7, the folded portion 27a collides with the engaging convex portion 11d around the through hole 15 via the cover 40. However, the locking plug is ensured by the deformation of the folded portion 27a itself. 27 pull out work.

The specific aspect in which the locking plug 27 is provided with the folded-back portion is arbitrary. The folded portion 27a may be provided under the lock plug 27. The folded portion 27a can also be used only as a semicircular convex portion to reduce the function of the folded portion. The folded portion 27a is only a limiting means/limit for restricting the detachment of the locking plug 27 from the through hole 15. An example of the structure.

A modification will be described with reference to Fig. 8 . As shown schematically in Fig. 8, the locking member 25 can be formed only by the locking plug 27, and the locking plug 27 can be made different to the male member 10. In this case, as in the modification of FIG. 7, it is particularly desirable to provide a restriction means/restriction structure for restricting the forward and backward movement of the lock plug 27 inserted into the through hole 15 of the engagement convex portion 11d, and to suppress the lock plug 27 from being self-carded. The through hole 15 of the convex portion 11d is separated. According to this, in the modification of FIG. 8, the upper surface of the flat plate portion 11a of the main body 11 of the male member 10 is provided, and the substantially U-shaped frame portion 11p of the through hole 11q is partitioned together with the upper surface of the flat plate portion 11a. Further, the rear end portion 27n of the lock plug 27 is provided with a rod receiving portion 27p for receiving and holding the rod portion 11p1 extending in the left-right direction of the frame portion 11p. By the rod receiving portion 27p of the locking plug 27 receiving and holding the rod portion 11p1 of the frame portion 11p, the above-described detachment of the locking plug 27 can be effectively suppressed. Further, each of the specific shapes of the rod receiving portion 27p of the lock plug 27 and the rod portion 11p1 of the frame portion 11p is arbitrary.

As shown in Fig. 8, the rod receiving portion 27p has a parallel wall 27p1 extending in the front-rear direction in parallel with the upper surface of the locking plug 27, and a connecting wall that joins the rear end of the parallel wall 27p1 to the rear end portion 27n of the locking plug 27. 27p2, and a hook 27p3 which is convexly raised downward toward the lower end of the front end of the parallel wall 27p1. Further, the rear end portion 27n of the lock plug 27 is a portion that displays the lock plug 27 disposed on the flat plate portion 11a of the male member 10. However, the through hole 15 as the engaging convex portion 11d of the male member 10 may be displayed. Rear side section.

As shown in Fig. 8, when the locking plug 27 is passed through the through hole 15 of the engaging projection 11d in a state where the male member 10 and the female member 30 are coupled, the rod portion 11p1 of the frame portion 11p is at the rear end portion of the plug. 27n is sandwiched between the parallel wall 27p1 at an arbitrary strength. Further, by hooking the hook 27p3 to the front side surface of the rod portion 11p1, the rod portion 11p1 can be prevented from being detached from the rod receiving portion 27p. Thus, the lock plug 27 can be detachably attached to the male member 10, and the detachment of the lock plug 27 due to the weight of the lock plug 27 or the like can be effectively suppressed.

Since the flatness of the flat plate portion 11a is ensured even if the frame portion 11p is provided, the ease of insertion of the lock plug 27 into the through hole 15 is not impaired. The lock plug 27 is preferably guided to the through hole 15 by the upper surface of the flat plate portion 11a and the upper surface of the protruding portion 31r.

Further, the hook 27p3 may be omitted, and the rod portion 11p1 may be prevented from being detached from the rod receiving portion 27p only by the vertical direction of the rod portion 11p1 by the rod receiving portion 27p. Further, on the contrary, the upper and lower nips from the rod portion 11p1 by the rod receiving portion 27p may be omitted, and the rod portion 11p1 may be prevented from being detached from the rod receiving portion 27p only by the hook 27p3 of the rod receiving portion 27p. The frame portion 11p and the rod receiving portion 27p are merely examples of a restriction means/restriction structure that restricts the release of the lock plug 27 from the through hole 15.

<Second embodiment>

The second embodiment will be described with reference to Figs. 9 to 13 . Fig. 9 is a schematic perspective view of the coupling. Fig. 10 is a schematic exploded cross-sectional view showing the connecting device in a non-connected state. Figure 11 is a schematic diagram of the link in the locked state. Schematic diagram. Fig. 12 is a schematic top view of a male member of a coupling device. Fig. 13 is a schematic perspective view of a female member of a coupling.

As shown in FIGS. 9 to 11, the lock plug 127 of a different configuration from the above is utilized as the lock member 25. Even in this case, the same effects as those of the above-described embodiments and modifications can be obtained. Further, in the present embodiment, similarly to the case of the modification shown in FIG. 8, the lock member 25 is constituted only by the lock plug 127, and the lock plug 127 is made different for the male member 10. However, the present invention is not limited thereto. The use of different symbols 27, 127 for the locking plug is for convenience of explanation.

As shown in this embodiment, it is preferable to make the base portion 127m of the lock plug 127 larger than the insertion portion 127n of the lock plug 127. In this case, when a force is applied to the base portion 127m of the lock plug 127 in a predetermined state, the lock plug 127 can be easily pulled out from the through hole 15 of the engagement convex portion 11d. In the case of the present embodiment, the same effects as those of the above-described embodiments and modifications can be obtained by adding or substituting the configurations of the above-described embodiments and modifications.

As shown in FIGS. 9 to 11, when the female member 30 is laminated on the male member 10, the engaging convex portion 11d which becomes the male member 10 passes through the opening 34 of the annular portion 31p of the female member 30 toward the female member 30. The upper side of the upper surface of the female member 30 is also disposed so that the through hole 15 of the engaging convex portion 11d is disposed on the upper surface of the female member 30, so that the locking plug 127 can be inserted into the through hole 15.

The lock plug 127 is coupled to a flat insertion portion 127n on the outer circumferential surface of the annular base portion 127m which is a longitudinal direction in the left-right direction, and is not limited. And it is typically composed of an elastic material such as a silicone resin, a urethane resin, or an elastomer resin, and has a predetermined elasticity. The through hole 15 of the engaging convex portion 11d is provided with an annular ring 50 made of an elastic material such as a silicone resin, a urethane resin or an elastomer resin. The ring 50 is an elastic member.

When the ring 50 of the through hole 15 of the engaging convex portion 11d is inserted into the locking plug 127, the locking plug 127 slides on the upper surface of the rod portion 31a of the female member 30, and the outer circumference of the base portion 127m of the locking plug 127 faces the engagement More specifically, the convex portion 11d collides with the ring 50 provided in the through hole 15 of the engaging convex portion 11d, and at this position, the locking plug 127 is stopped. The base portion 127m of the locking plug 127 is positioned on the rod portion 31a, and the end portion of the insertion portion 127n of the locking plug 127 passing through the ring 50 is located on the beam 32. By locking the plug 127, the displacement of the rod portion 31a and the beam 32 is restricted, and the female member 30 is prevented from being detached from the male member 10.

When the lock plug 127 and the ring 50 are formed of an elastic material such as helium oxygen, the two are in contact with each other to form a state in which the two are frictionally engaged, and the displacement between the two can be suppressed. More preferably, the insertion portion 127n of the lock plug 127 can be pressed into the ring 50, whereby the displacement between the two can be more sufficiently suppressed. In this case, in a state where the lock plug 127 shown in FIG. 10 is not inserted into the ring 50, the upper and lower opening widths W50h of the ring 50 are narrower than the thickness W127n of the insertion portion 127n of the lock plug 127. The hardness of the locking plug 127 can also be made harder than the hardness of the ring 50, as needed, thereby ensuring a smoother insertion of the locking plug 127 toward the ring 50. The lock plug 127, the ring 50, and the like can be manufactured by mold forming, but are not limited thereto.

The method of fixing the position of the through hole 15 of the ring 50 to the engaging convex portion 11d is However, in this example, the ring 50 is fitted to the portion around the through hole 15 of the engaging convex portion 11d. As is clear from FIG. 10 and FIG. 11 , the opening edge 51 of both the rings 50 protrudes outward in the opening width direction of the opening 50 h of the ring 50 that is aligned in the vertical direction when viewed from the front in FIGS. 10 and 11 . The ring 50 can be sandwiched between the portions around the through hole 15 that holds the engaging convex portion 11d. The upper and lower portions of the upper and lower engaging projections 11d of the front side opening 15j of the through hole 15 are retracted toward the rear, so that the opening edge 51 of the protruding ring 50 is ideally fitted. The upper and lower portions of the upper and lower engaging projections 11d of the rear side opening 15b of the through hole 15 are retracted toward the front and the lower portion so that the opening edge 51 of the protruding ring 50 is ideally fitted.

A detachment preventing recess 127r is provided on the lower surface of the front end side of the insertion portion 127n of the lock plug 127, and a detachment preventing projection 36 is provided on the upper surface of the beam 32 of the female member 30. In the state shown in Fig. 11, the detachment preventing recess 127r is The fitting is prevented from being released from the protruding portion 36, whereby the locking plug 127 can be prevented from coming off the ring 50 of the through hole 15 of the engaging convex portion 11d due to the action of the external force. When the separation preventing recessed portion 127r is used as the engaging portion and the separation preventing projection portion 36 is used as the non-engaging portion, the engaging portion can be formed as a convex portion, and the engaged portion can be a concave portion. However, as in the present example, in consideration of the fact that the locking plug 127 is smoothly inserted into the ring 50, it is desirable to provide a convex engaging portion in the locking plug 127 and a convex portion in the beam 32 of the female member 30. The separation preventing recessed portion 127r extends long in the left-right direction that coincides with the direction orthogonal to the plane of the paper of FIG. 10, and the same applies to the separation preventing projection 36. The locking plug 27 is configured to be restrained by the detachment preventing recess 127r and the detachment preventing projection 36. A restriction means/restriction structure that is detached from the through hole 15.

In addition to the first detachment preventing convex portion 36a provided on the upper surface of the female member 30, the second detachment preventing convex portion 36b may be additionally provided on the lower surface thereof. Thereby, it is not necessary to discriminate the front and back of the female member 30, and the workability at the time of connecting the male member 10 and the female member 30 can be improved. Furthermore, since the female member 30 is a flat plate which is not provided with a flat buckling, it is not easy to distinguish the front and back. Further, the male member 10 can be distinguished from the front and back in accordance with the protruding direction of the engaging convex portion 11d. Furthermore, there is a case where the upper surface is used as the surface and the lower surface is used as the inside.

The through hole 15 of the engaging convex portion 11d is in a state in which the locking plug 127 is clearly inserted into the opening 50h of the ring 50, and the first embodiment can be prevented in order to prevent the locking plug 127 from being detached from the ring 50 by the action of an external force. The structure disclosed in the modification is suitable for the locking plug 127. It is understood that the folded portion 27a shown in FIG. 7 can be provided in the insertion portion 127n of the lock plug 127, thereby restricting the movement of the lock plug 127 rearward. As shown in FIG. 8, the frame member 11p may be provided in the male member 10, and the rod receiving portion 27p may be provided in the lock plug 127 as an additional or alternative.

As shown in Fig. 11, when the rod portion 31a of the annular portion 31p of the female member 30 is placed on the bottom surface 18c of the groove 18 of the male member 10, the beam 32 between the opening 34 of the female member 30 and the opening 35 is carried. The pedestal portion 111 provided at the front end of the male member 10 is placed, whereby the female member 30 can be more stably placed on the male member 10. With such a configuration, the pivoting of the female member 30 in the downward direction of the male member 10 is restricted, and the annular portion 11m of the male member 10 and the annular portion 31q of the female member 30 can be more stably held in the same plane state. . As shown in FIG. 11, the annular portion 11m of the male member 10 and the flat portion The plate portion 11a, the rod portion 31a of the female member 30, the beam 32 of the female member 30, and the annular portion 31q of the female member 30 are disposed on the same axis AX, which is the same as the above-described embodiment and modification.

As shown in FIG. 11, the rod portion 31a of the annular portion 31p of the female member 30 is in surface contact with the engaging convex portion 11d of the male member 10. Thereby, in the connected state, it is possible to improve the stability between the male member 10 and the female member 30 when a strong force is applied to the male member 10 and the female member 30. In the same manner, it is possible to improve the stability of the coupling device 100 in a state in which the ropes 201 and 202 are strongly pulled toward the opposite sides on the same straight line in the direction in which the ropes 201 and 202 are separated from the coupling device 100.

When the depth D18 of the groove 18 which is equal to the space between the bottom surface 18c of the groove 18 and the upper surface of the flat plate portion 11c is used as a reference, the rod placed on the bottom surface 18c of the groove 18 in the direction coincident with the depth D18 of the groove 18 is used. The range in which the portion 31a is in contact with the rear side surface 19c of the engaging convex portion 11d is the upper and lower contact range R31a. At this time, it is preferable to conform to the upper and lower contact range R31a and the depth D18/2, and it is more preferable to conform to the upper and lower contact range R31a>depth D18/2.

The connection of the connector 100 is released, which is performed in a typical and non-limiting manner as follows. First, the lock plug 127 is pulled out from the ring 50 provided in the through hole 15 of the engaging convex portion 11d, and the male member 10 or the female member 30 is biased by a tool such as a hammer to release the male member 10 and the female member 30. Link.

According to the review results of the inventors, it is known that, in particular, in the use of fishing nets, in order to release the connection of the connecting device 100, the male member 10 and the female member are 30 gives a strong force to separate the two, and therefore, depending on the situation, it is necessary to use a strong force to disengage the locking plug 127 from the ring 50 of the through hole 15 of the engaging convex portion 11d. In view of this, in the present embodiment, the wire insertion hole 127h is provided in the base portion 127m of the lock plug 127, so that a metal wire or the like can be inserted into the wire insertion hole 127h. In this case, the cord is inserted into the cord insertion hole 127h of the base portion 127m of the lock plug 127, and the cord is pulled away from the coupling device 100 in this state, whereby the engagement projection 11d can be self-set. The ring 50 of the through hole 15 simply pulls out the locking plug 127. It is expected that the release of the connection of the connecting device 100 will be rapid, and it is typically possible to shorten the time required to release the connection of the fishing net. Further, the extending direction of the wire insertion hole 127h of the base portion 127m of the lock plug 127 is arbitrary. By means of the cord, the majority of the locking plugs 127 can be recovered or managed.

Further, the cord insertion hole 127h is provided to ensure that the other member engages the lock plug 127. From this point of view, it is not necessary to use the "rope" in the drawing of the lock plug 127. Any material rope or the like can also be used as the "locking plug pull-out member". The wire, which is a metal wire such as aluminum, iron or copper, is covered by a resin such as polyvinyl chloride, but is not limited to this. The locking plug pull-out member is a locking member that pulls away from the member. The locking plug pulls away from the member, typically a linear body. There is also a case where the cord insertion hole 127h is simply referred to as an "insertion hole".

The cord may also be passed through the cord insertion hole 127h, and the cord may also pass through the opening of at least one of the male member 10 and the female member 30. In this case, it is possible to prevent the lock plug 127 from being lost.

Finally, preliminary and supplementary explanation will be made with reference to FIGS. 12 and 13. As shown in FIG. 12, the upper viewing angle shape of the male member 10 is gradually reduced from the rear end side toward the front end side of the male member 10 from the rear end side. The rear end side of the male member 10 has an arc shape. The pedestal portion 111 is protruded from the front end surface of the male member 10. In other words, the pedestal portion 111 is extended on the opposite side of the groove 18 of the recessed strip via the engaging convex portion 11d.

Since the lock plug 127 as the lock member 25 is different from the male member 10, unlike the case shown in Fig. 1, the fixing portion 13 is not provided on the upper surface of the flat plate portion 11a of the main body 11 of the male member 10, ensuring the public The structure of the member 10 is simplified. The opening 14 of the male member 10 is a chamfered rectangular shape that is long in the left-right direction, and can be inserted into a thicker rope or a wider rope. In the island shape in which the bottom surface 18c of the groove 18 is raised, the engaging convex portion 11d is provided, and the left and right side surfaces of the engaging convex portion 11d are not continuous with the left and right side surfaces of the flat plate portion 11c, but are not limited thereto.

The pedestal portion 111 is protruded toward the front side on the front side surface of the flat plate portion 11c. When the female member 30 is laminated on the male member 10, the pedestal portion 111 is separated from the space 112 by the space 112 in order to prevent the lower detachment convex portion 36b of the beam 32 of the female member 30 from interfering with the pedestal portion 111. One set of pedestal parts 111a and 111b is configured. When the female member 30 is laminated to the male member 10, the lower portion of the beam 32 of the female member 30 can be avoided by the space 112 provided in the pedestal portion 111 and the lower detachment preventing projection 36b of the beam 32 of the female member 30. The separation preventing convex portion 36b is caused to interfere with the pedestal portion 111. In other words, the male member 10 is configured not to interfere with the detachment prevention convex portion 36b of the lower surface of the beam 32 of the female member 30.

As shown in Fig. 13, the thickness of the female member 30 is constant, and the thickness of the beam 32 is equal to the thickness of the opening 34, other portions surrounding the opening 35, and the like, and the structure is simplified as compared with the example shown in Fig. 1 and the like. The separation preventing convex portion 36 is provided on the edge of the beam 32 on the side of the opening 34, and protrudes upward from the upper surface of the beam 32. The length of the detachment preventing projection 36 is equal to or shorter than the length of the detachment prevention recess 127r of the lock plug 127, and is shorter than the left and right width of the opening 34.

<Third embodiment>

A third embodiment will be described with reference to Fig. 14 . Fig. 14 is a schematic enlarged cross-sectional view showing the connecting device in a locked state. In the present embodiment, the cross-sectional viewing angle of the annular portion 31p of the female member 30 is slightly rounded. Thereby, the engaging convex portion 11d of the male member 10 is easily inserted into the opening 34 of the female member 30. Even in this case, the same effects as those of the above-described embodiment, modifications, and the like can be obtained.

Here, as shown in FIG. 14, the side surface 31a5 of the rod portion 31a is in direct surface contact with the rear side surface 19c of the engaging convex portion 11d. The rear side surface 19c of the engaging convex portion 11d is gradually curved upward from the bottom surface 18c of the groove 18 in accordance with the outline of the circular annular portion 31p, thereby securing a sufficient surface of the rod portion 31a and the engaging convex portion 11d. contact. Thereby, even if the force is applied to the direction in which the male member 10 and the female member 30 are separated from each other, that is, the X-axis direction, the engagement state can be optimally maintained. Further, the cross-sectional shape of the rod portion 31a may be a rectangular shape, and the rear side surface 19c of the engaging convex portion 11d may be a surface that is vertically erected from the bottom surface 18c of the groove 18. This is a fourth embodiment. Figure 18 shows the state.

Similarly to the second embodiment, as shown in FIG. 14, when the depth D18 of the groove 18 equal to the distance between the bottom surface 18c of the groove 18 and the upper surface of the flat plate portion 11c is used as a reference, the depth D18 coincides with the depth D18 of the groove 18. In the direction, the range in which the rod portion 31a placed on the bottom surface 18c of the groove 18 contacts the rear side surface 19c of the engaging convex portion 11d is defined as the upper and lower contact range R31a. At this time, it is preferable to satisfy the upper and lower contact range R31a>depth D18/2.

<Fourth embodiment>

The fourth embodiment will be described with reference to Figs. 15 to 21 . Fig. 15 is a schematic perspective view of the coupling device. Fig. 16 is a schematic exploded perspective view showing the connecting member in a non-connected state, showing the side structure of the male member, showing the sectional structure of the female member, and showing the side structure of the locking member. Figure 17 is a schematic top plan view of the coupling device in a locked state. Fig. 18 is a schematic cross-sectional view showing the connecting device in a locked state, showing a sectional structure taken along line X20-X20 of Fig. 17. Fig. 19 is a schematic cross-sectional view showing the connecting device in a locked state, showing a sectional structure taken along line X21-X21 of Fig. 17. Fig. 20 is a schematic top view of a male member of a coupling device. Fig. 21 is a schematic top view of the female member of the coupling device.

In the present embodiment, the penetration direction of the through hole 15 of the engaging convex portion 11d of the male member 10 is not the front-rear direction but the left-right direction. Therefore, the insertion and removal direction of the lock plug 127 is not in the front-rear direction but in the position. In the left and right direction. In the case where force is applied to the direction in which the male member 10 and the female member 30 are separated from each other, the male member 10 and the female member are pulled out while the locking plug 127 is pulled out. The connection of the member 30 is released, the male member 10 is strongly separated from the female member 30, or the female member 30 is strongly separated from the male member 10, but the operator's hand is located in the left-right direction and the coupling device 100 when the locking plug 127 is pulled out. Since the position is separated, it is possible to avoid collision of the male member 10, the female member 30, and the like with the operator's hand.

In addition, the extending direction of the through hole 15 is not limited to the right and left direction, and may be a direction intersecting the "horizontal direction of the male member 10 and the female member 30 in the connected state". The "horizontal direction of the male member 10 and the female member 30 in the connected state" as referred to herein is generally the same as the direction before and after the use in the present application, but the following description can also be made. The "horizontal direction of the male member 10 and the female member 30 in the connected state" is a direction in which at least one of the longitudinal direction of the male member 10 in the connected state and the longitudinal direction of the female member 30 coincides with each other, and is more typically along the connected state. The direction of the upper or lower surface of the male member 10 or the female member 30. When viewed as a single member of the male member 10, the following description can be made. The through hole 15 of the engaging convex portion 11d extends in a direction intersecting the front-rear direction from the rear end to the front end of the male member 10. The through hole 15 of the engaging convex portion 11d extends in a direction intersecting the longitudinal direction from the rear end to the front end of the male member 10. The through hole 15 of the engaging convex portion 11d extends in parallel with the upper surface, the lower surface, or the like of the plate-shaped male member 10.

In the case of the present embodiment, the addition or replacement of the configuration of the above-described embodiments and modifications can be performed, and the same effects as those of the above-described embodiments and modifications can be obtained.

As shown in Fig. 16, in a state where the female member 30 is not coupled to the male member 10, the female member 30 is placed on the male member 10, whereby the rod portion 31a is The beam 32 is placed on the bottom surface 18c of the groove 18, and the beam 32 is placed on the pedestal portion 111. The mother member 30 is laminated on the male member 10 such that the engaging convex portion 11d of the male member 10 protrudes from the upper surface of the female member 30 through the opening 34 of the female member 30, and the through hole 15 of the engaging convex portion 11d is disposed at On the upper surface of the female member 30. The through hole 15 extends in the left-right direction orthogonal to the paper surface of FIG. When the lock plug 127 is inserted into the ring 50 provided in the through hole 15 of the engaging convex portion 11d, as shown in Fig. 15, the lock plug 127 is slidably moved on the upper surface of the rod portion 31b of the female member 30, locking the plug 127 The base portion 127m collides with the engagement convex portion 11d, and more accurately collides with the ring 50 provided in the through hole 15 of the engagement convex portion 11d. At this position, the lock plug 127 is stopped.

As shown in FIGS. 17 to 19, in a state in which the connection of the male member 10 and the female member 30 is locked by the locking plug 127, as clearly shown in FIG. 19, the base portion 127m of the locking plug 127 is positioned on the rod portion 31e, and the locking plug is locked. The insertion portion 127n of the 127 is positioned on the rod portion 31b through the front end portion of the ring 50. The upper displacement of the rod portions 31b, 31e is restricted by the locking plug 127, and the female member 30 is prevented from being detached from the male member 10.

A detachment prevention recess 127r is provided on the lower surface of the insertion portion 127n of the lock plug 127 on the distal end side, and a detachment prevention projection 36 is provided on the upper surface of the rod portion 31b of the female member 30. The detachment prevention recessed portion 127r is fitted to the detachment prevention convex portion 36, whereby the lock plug 127 can be prevented from being detached from the ring 50 of the through hole 15 of the engagement convex portion 11d by the action of the external force. Further, unlike the second embodiment, the separation preventing convex portion 36 is provided on the upper surface of the beam portion 31b of the female member 30 instead of the upper surface of the beam 32 of the female member 30. This point is a change in the penetration direction of the through hole 15 corresponding to the engagement convex portion 11d.

Similarly to the second embodiment, in addition to the first anti-disconnection convex portion 36a provided on the upper surface of the female member 30, the second anti-disconnection convex portion 36b is provided on the lower surface thereof. Thereby, it is not necessary to determine the front and back of the female member 30, and the male member 10 and the female member 30 can be connected, and workability at the time of connection can be improved. The detachment prevention recessed portion 127r extends long in the rear direction in a direction orthogonal to the plane of the paper of FIG. 19, and is also the same in the detachment prevention convex portion 36. The detachment preventing recess 127r and the detachment preventing projection 36 are also restricting means/restricting structures for restricting the detachment of the locking plug 27 from the through hole 15.

When the separation preventing convex portion 36 is provided on the upper surface and the lower surface of the female member 30, the lower surface of the female member 30 is prevented from coming off the male member 10. In this embodiment, in view of this, the male member 10 is configured not to interfere with the second detachment preventing convex portion 36b on the lower surface of the beam 32 of the female member 30. As in the present embodiment, in a state in which the female member 30 is placed on the male member 10, it is preferable that the rod portion 31b, the rod portion 31e, and the like of the female member 30 are not disposed on the male member 10. The left and right widths of the flat plate portion 11c of the male member 10 are made smaller than the maximum value of the left and right widths of the opening 34 of the female member 30, and it is more preferable that the left and right widths of the flat plate portion 11c of the male member 10 be the openings 34 of the female member 30. The minimum value of the left and right width is below. Thereby, the interference of the separation preventing convex portion 36 of the female member 30 and the male member 10 can be avoided.

As shown in Fig. 18, in the case of the present embodiment, the outer peripheral surface of the rod portion 31a of the annular portion 31p of the female member 30 is also in surface contact with the rear side surface 19c of the engaging convex portion 11d of the male member 10. Also, it meets the upper and lower contact range R31a>depth D18/2.

Finally, preliminary and supplementary explanations will be made with reference to FIGS. 20 and 21. As shown in Fig. 20, the male member 10 has an annular portion 11m having a right-angled viewing angle on the rear end side of the male member 10, and the annular flat portion 11c is combined with the first-order state. The engaging convex portion 11d is provided in a convex shape on the upper surface of the flat plate portion 11c. The groove 18 is provided by the step portion 16 and the engaging convex portion 11d. This is the same as the above-described embodiment. However, the through hole 15 of the engaging convex portion 11d is not provided in the front-rear direction but in the left-right direction. The step portion 16 does not face the opening on the one end side of the through hole 15. The flat plate portion 11c extends further forward than the engagement convex portion 11d, thereby providing the pedestal portion 111. Since the pedestal portion 111 does not interfere with the separation preventing convex portion 36 provided on the female member 30, the space 112 for interference avoidance is not provided in the pedestal portion 111.

As in the case of the present embodiment, when the extending direction of the through hole 15 of the engaging convex portion 11d is matched with the right and left direction, the left and right widths of the engaging convex portion 11d can be shortened, so that the left and right sides of the flat plate portion 11c can be narrowed. Width W11c. For example, in the case of comparison with the width W11m of the diameter equal to the diameter of the annular portion 11m, the left and right widths W11c < the left and right widths W11m are preferably formed, and the left and right widths W11c < the left and right widths W11m/2 may be used. This structural change contributes to a reduction in the material used for the manufacture of the male member 10, which contributes to a reduction in price.

As shown in FIG. 21, the left and right widths of the female member 30 are narrow at the front end side and wide at the rear end side. The opening 34 of the female member 30 is long in the front-rear direction in accordance with the change in the structure of the engaging convex portion 11d of the male member 10. The left and right width of the opening 34 Gradually increasing from the front toward the rear, ensuring that the opening 35 has a sufficient opening width.

According to the above disclosure, a method of using the connector described below is also disclosed.

<Note 1>

A method of using a coupling device includes a method of using a plate-shaped male member (10), a plate-shaped female member (30), and a coupling member (100) of a locking member (25, 27, 127). The member includes an engaging convex portion (11d) provided with a through hole (15) at the top portion (19b), and a step portion (16) having a concave groove (18) formed together with the engaging convex portion (11d), The female member includes a peripheral portion (31p) for surrounding an opening (34) into which the engaging convex portion (11d) is inserted, the locking member including the through hole (15) insertable into the engaging convex portion (11d) The insertion portion (127n) includes a step of laminating the parent member (30) on the male member (10), and inserting the opening (34) of the female member (30) into the public a step of engaging the convex portion (11d) of the member (10) in such a manner that a portion (31a) of the peripheral portion (31p) of the female member (30) is formed by the groove (18) of the male member (10) a step of allowing the aforementioned top portion (19b) of the aforementioned engaging convex portion (11d) to protrude from the female member (30); and inserting the aforementioned insertion portion (127n) of the locking member (25, 27, 127) To the aforementioned card The through hole (15) of the top portion (19b) of the convex portion (11d) is used to lock the connection between the male member (10) and the female member (30). Step.

<Note 2>

In the method of using the coupling device (100) according to the first aspect, the locking member (25, 27, 127) includes a base portion (127m) provided with a wire insertion hole (127h), and the method of use further includes the following steps. a step of passing the wire through the aforementioned wire insertion hole (127h) of the aforementioned base portion (127m) of the locking member (25, 27, 127); and engaging the aforementioned locking member by the aforementioned insertion. And 27, 127) the step of pulling the branch wire (15, 27, 127) from the through hole (15) of the engaging convex portion (11d) in a predetermined direction.

In light of the above disclosure, various modifications can be made by those skilled in the art. The present invention can also be used for a wide range of applications other than fisheries. Therefore, the use of the present invention is not limited to the above description. The specific shape and constituent materials of the male member and the female member are arbitrary. There is a case where the annular portion surrounding the opening is referred to as a peripheral portion, but the specific shape of the peripheral portion is arbitrary. The extension of the groove provided in the male member is also arbitrary.

Since the male member and the female member are composed of a plate-like member, the simplification of the structures can be achieved, and the mechanical strength of the members can be improved. Since the male member and the female member are plate-like members, their rude handling is also allowed. This is particularly advantageous for the purpose of repeatedly investing in the sea and for fishing nets pulled up from the sea. The material of the male member and the female member is arbitrary, and can be appropriately selected depending on the purpose, but in particular, it is considered that the member is immersed in the sea in the use of the fishing net, and the members are made stainless. Steel is preferred to improve corrosion resistance.

The symbols attached to the claims are for reference only and are not intended to be used to limit the scope of the patent application. The mounting aspect of the female part and the cover disclosed in the embodiment of FIGS. 1 to 4 and the mounting manner of the female language cover disclosed in the modification of FIG. 5 may be combined. A wide variety of combinations between the various modifications can be understood from the above description for those skilled in the art.

10‧‧‧public components

11‧‧‧Ontology

11a‧‧‧ Flat section

11b‧‧‧ step wall

11c‧‧‧ flat section

11d‧‧‧Snap convex

11m‧‧‧Ring

11n‧‧‧ inner circumference

11p‧‧‧ Frame Department

11p1‧‧‧ sticks

11q‧‧‧through hole

12‧‧‧U word department

13‧‧‧ Fixed Department

14‧‧‧ openings

15‧‧‧through holes

16‧‧ ‧ step department

18‧‧‧ditch

19a‧‧‧ Main body

19b‧‧‧ top

19c‧‧‧ rear side

19d‧‧‧ front side

25‧‧‧Locking components

26‧‧‧rope

27‧‧‧Lock plug

127‧‧‧Lock plug

27a1‧‧‧ front slope

27a2‧‧‧ rear inclined surface

27m‧‧‧ front end

27n‧‧‧ back end

27p‧‧‧bars

30‧‧‧Female components

31‧‧‧ frame

31a‧‧‧ Sticks

31b‧‧‧ Sticks

31c‧‧‧ Sticks

31d‧‧‧ Sticks

31e‧‧‧ Sticks

31m‧‧‧ highlights

31n‧‧‧ inner circumference

31p‧‧‧Ring

31q‧‧‧Rings

31r‧‧‧Protruding

31r5‧‧‧ recess

31r6‧‧‧1

32‧‧‧ beams

32m‧‧‧ protruding parts

32m5‧‧‧ recess

32m6‧‧‧1

32p‧‧‧thin wall

32q‧‧‧thin wall

34‧‧‧ openings

35‧‧‧ openings

40‧‧‧ Cover

41‧‧‧Wall

42‧‧‧The Ministry of Coverage

43‧‧‧ claws

44‧‧‧ openings

45‧‧‧ openings

100‧‧‧Links

201‧‧‧ rope

202‧‧‧ rope

PL10‧‧ plane

PL30‧‧ plane

Fig. 1 is a schematic perspective view of a coupling device according to a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view showing a female member according to a first embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view showing a male member according to a first embodiment of the present invention.

Fig. 4 is a schematic partial cross-sectional view showing a connected state of the male and female members according to the first embodiment of the present invention.

Fig. 5 is a schematic partial cross-sectional view showing a modification of the cover.

Fig. 6 is a schematic partial cross-sectional view showing a modification in which a cover is not provided.

Fig. 7 is a schematic partial cross-sectional view showing a modification in which a plug is provided with a folded portion.

Fig. 8 is a schematic view showing a modification in which the plug is made of a different body from the male member.

Fig. 9 is a schematic oblique view of a coupling device according to a second embodiment of the present invention; Figure.

Fig. 10 is a schematic exploded cross-sectional view showing a coupling device in a non-connected state according to a second embodiment of the present invention.

Fig. 11 is a schematic cross-sectional view showing a coupling device in a locked state according to a second embodiment of the present invention.

Fig. 12 is a schematic top view of a male member of a coupling device according to a second embodiment of the present invention.

Fig. 13 is a schematic perspective view of a female member of a coupling according to a second embodiment of the present invention.

Fig. 14 is a schematic enlarged cross-sectional view showing a coupling device in a locked state according to a third embodiment of the present invention.

Fig. 15 is a schematic perspective view of a coupling according to a fourth embodiment of the present invention.

Fig. 16 is a schematic exploded perspective view showing the connecting member in the non-connected state according to the fourth embodiment of the present invention, showing the side surface structure of the male member, showing the sectional structure of the female member, and showing the side surface structure of the locking member.

Fig. 17 is a schematic top plan view showing a coupling device in a locked state according to a fourth embodiment of the present invention.

Fig. 18 is a schematic cross-sectional view showing a coupling device in a locked state according to a fourth embodiment of the present invention, and shows a sectional structure taken along line X18-X18 of Fig. 17 .

Fig. 19 is a schematic cross-sectional view showing a coupling device in a locked state according to a fourth embodiment of the present invention, showing a sectional structure taken along line X19-X19 of Fig. 17;

Fig. 20 is a schematic top view of a male member of a coupling according to a fourth embodiment of the present invention.

Fig. 21 is a schematic top view of a female member of a coupling according to a fourth embodiment of the present invention.

10‧‧‧public components

11‧‧‧Ontology

11a‧‧‧ Flat section

11b‧‧‧ step wall

11c‧‧‧ flat section

11d‧‧‧Snap convex

11m‧‧‧Ring

11n‧‧‧ inner circumference

11p‧‧‧ Frame Department

11p1‧‧‧ sticks

11q‧‧‧through hole

12‧‧‧U word department

13‧‧‧ Fixed Department

14‧‧‧ openings

15‧‧‧through holes

16‧‧ ‧ step department

18‧‧‧ditch

19a‧‧‧ Main body

19b‧‧‧ top

19c‧‧‧ rear side

19d‧‧‧ front side

25‧‧‧Locking components

26‧‧‧rope

27‧‧‧Lock plug

30‧‧‧Female components

31‧‧‧ frame

31a‧‧‧ Sticks

31b‧‧‧ Sticks

31c‧‧‧ Sticks

31d‧‧‧ Sticks

31e‧‧‧ Sticks

31m‧‧‧ highlights

31n‧‧‧ inner circumference

31p‧‧‧Ring

31q‧‧‧Rings

31r‧‧‧Protruding

31r5‧‧‧ recess

31r6‧‧‧1

32‧‧‧ beams

32m‧‧‧ protruding parts

32m5‧‧‧ recess

32m6‧‧‧1

32p‧‧‧thin wall

32q‧‧‧thin wall

34‧‧‧ openings

35‧‧‧ openings

40‧‧‧ Cover

41‧‧‧Wall

42‧‧‧The Ministry of Coverage

43‧‧‧ claws

44‧‧‧ openings

45‧‧‧ openings

100‧‧‧Links

Claims (15)

A coupling device comprising: a plate-shaped male member (10) including an engaging convex portion (11d) and a stepped portion of a groove (18) formed in a concave shape together with the engaging convex portion (11d) ( And a plate-shaped female member (30) including a peripheral portion (31p) for surrounding an opening (34) into which the engaging convex portion (11d) is inserted, the peripheral portion (31p) having When the engaging convex portion (11d) is inserted into the opening (34), the portion (31a) received by the groove (18), the engaging convex portion (11d) of the male member (10) includes a top portion (19d), the top portion (19d) is inserted into the opening (34) of the female member (30) by the engaging convex portion (11d), and protrudes from the peripheral portion (31p) of the female member (30) At the top portion (19d), a through hole (15) is provided, and the through hole (15) is a locking member (25, 27) for locking the connection between the male member (10) and the female member (30). 127) The lock member (25) passing through the through hole (15) is disposed on the peripheral portion (31p) of the female member (30). The connector of claim 1, wherein the locking member (25, 27, 127) includes: an insertion portion (127n) to be inserted into the through hole (15); and the insertion portion (127n) A base (127m) that is combined and has a larger size than the aforementioned insertion portion (127n). For example, the link of the second application of the patent scope, wherein At the base portion (127m), an insertion hole (127h) through which the locking member is pulled away is provided. The coupling member according to claim 1 or 2, wherein the locking member (25, 27, 127) has elasticity, and the through hole (15) of the engaging convex portion (11d) is provided for the aforementioned The elastic member (50) into which the locking member (25, 27, 127) is pressed. The coupling device of claim 4, wherein the locking member (25, 27, 127) is harder than the elastic member (50). The coupling device according to the first or second aspect of the invention, wherein the through hole (15) of the engaging convex portion (11d) is in a paired state of the male member (10) and the female member (30) The horizontal direction extends in the direction of crossing. The coupling device of claim 1 or 2, wherein the coupling device further has restriction means (27a, 27p, 127r, 36) for restricting the locking member (25, 27, 127) from being locked along the foregoing The members (25, 27, 127) are inserted into the insertion hole (15) to move in the insertion direction. The coupling device of claim 7, wherein the coupling device further includes an insertion portion (127n) for inserting the locking member (25, 27, 127) into the through hole (15), the restriction means (127r) 36) is a combination of at least one detachment preventing recess (127r) provided in the insertion portion (127n) and at least one detachment preventing projection (36) provided in the female member (30). The coupling device of claim 8, wherein the above-mentioned female member (30) is provided with the above-mentioned anti-separation convex portion (36), and the male member (10) is configured as the female member (30) When laminated on the male member (10), it does not interfere with the aforementioned detachment preventing convex portion (36) of the female member (30). The connector of claim 1 or 2, wherein the depth of the groove (18) is substantially equal to the thickness of the portion (31a) of the peripheral portion (31p). The coupling member according to claim 1 or 2, wherein the male member (10) is provided with the female member (30) placed when the female member (30) is laminated on the male member (10) a pedestal portion (111) of the peripheral portion (31p) extending from the opposite side of the groove (18) with the engagement convex portion (11d) interposed therebetween, and the pedestal portion (the pedestal portion) 111), a portion (32) different from the aforementioned portion (31a) of the peripheral portion (31p) is placed. The coupling device of claim 1 or 2, further comprising a covering member (40) for covering the aforementioned state of being inserted into the opening (34) of the female member (30) The aforementioned engaging convex portion (11d) of the male member (10). The coupling device of claim 1 or 2, wherein the engaging convex portion (11d) includes the female member (30) by insertion of the engaging convex portion (11d) toward the opening (34) Outstanding top The portion (19b) is configured to be tapered toward the distal end side of the engaging convex portion (11d). The coupling member according to claim 1 or 2, wherein the male member (10) further includes a male side mounting portion (11m), and the female member (30) further includes a female side mounting portion (31q). When the male member (10) is laminated with the female member (30), the male side mounting portion (11m) and the female side mounting portion (31q) are substantially disposed on the same plane. A method of using a connecting device includes a plate-shaped male member (10) including an engaging convex portion (11d) having a through hole (15) at a top portion (19b), and a engaging convex portion The portion (11d) together forms a stepped portion (16) of the concave groove (18); the plate-shaped female member (30) includes an opening (34) surrounding the insertion of the engaging convex portion (11d). a peripheral portion (31p); and a locking member (25, 27, 127) including a coupling member (100) of the insertion portion (127n) of the through hole (15) that can be inserted into the engaging convex portion (11d) The method of use includes the steps of: laminating the female member (30) on the male member (10), and inserting the engaging convex portion (11d) of the male member (10) into the female member a step of the opening (34) of (30), according to which the portion (31a) of the peripheral portion (31p) of the female member (30) is received by the groove (18) of the male member (10), And the top portion (19b) of the engaging projection (11d) protrudes from the female member (30); and Inserting the insertion portion (127n) of the locking member (25, 27, 127) into the through hole (15) provided in the top portion (19b) of the engaging convex portion (11d), and the male member (10) The step of locking the connection with the aforementioned parent member (30).