JP3033535U - Latch - Google Patents

Abstract

(57) [PROBLEMS] To provide a locking device that can be manufactured easily and at low cost. SOLUTION: A pair of locking members 10 which are detachable from each other,
In the locking device consisting of 20, one locking member 10 is
A rectangular substrate 11 is curved, guide grooves 12 are formed on both side edges 11a of the curved substrate in the longitudinal direction, and a locking projection 13 is integrally formed on one end of the substrate.
Is provided with a locking hole 24 that is bent at a substantially center of a rectangular flat plate 21 as a fold line 21c, is inserted into the guide groove 12, and is engaged with the locking protrusion 13. One of the locking members is The fold 21c is inserted into the guide groove 12. The fold line passes through the notches 21b that are formed at the center of the flat plate and that are formed from both side edges in the longitudinal direction. One of the locking members forms a mounting frame 15 at the other end of the board, and the other locking member has a mounting frame 23 at one end of the flat plate having the locking holes. The other locking member has a non-slip projection near the other end of the flat plate.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a locking tool used for accessories, suspenders, buckles and the like.

[0002]

[Prior art]

Conventionally, a buckle 50 as a locking tool as shown in FIG. 6 has been proposed (Japanese Utility Model Publication No. 5-40739). That is, in FIG. 6, the buckle 50 includes a buckle body 51 and a locking tool 52.

The buckle body 51 includes an outer cover body 53, two operation plates 54, a W-shaped leaf spring 55, four gap forming plates 56, and an outer cover plate 57. The outer cover main body 53 has a belt insertion frame 53a provided at one end of a substrate 58, notches 59 formed at both side edges, and a support shaft 60 provided in a protruding manner.

The operation plate 54 has a hole 61 that fits into the support shaft 60, an operation portion 62 that is exposed in the cutout portion 59, and an arm 63 that extends to the left and right of the tip portion to form a spring engagement portion 63a. The engaging portion 63b for coupling is formed. The outer cover plate 57 has an edge portion 65 provided on the left and right of a main body 64 that covers the substrate 58, and an elongated hole 66 is formed at the boundary between the main body 64 and the edge portion 65. The locking portion 52 is such that a leg 67 is provided on the belt insertion frame 52a and a locking piece 68 is formed at the tip of the leg 67.

However, since the buckle 50 described above is complicated in structure and requires many members, there is a drawback that a lot of labor and cost are required in manufacturing the buckle 50.

[0007]

[Problems to be solved by the invention]

 The present invention has been made in view of the above points, and an object thereof is to provide a locking tool that can be manufactured easily and at low cost.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a locking device comprising a pair of locking members which are detachable from each other, wherein the one locking member is curved in the longitudinal direction of a rectangular substrate and is curved. Also, guide grooves having an L-shaped cross section are formed in series so as to face each other on both side edges in the longitudinal direction of the substrate, and locking protrusions are integrally formed between the guide grooves at one end of the substrate. Of the rectangular flat plate is bent with the substantial center as a fold line and is inserted into the guide groove, and has a locking hole that is engaged with the locking projection, and the other locking member is , A locking tool inserted into the guide groove from the fold line. The locking tool is characterized in that the fold passes through opposite notches formed at both sides in the longitudinal direction at substantially the center of the flat plate. The one locking member forms a mounting frame for mounting a belt on the other end of the substrate, and the other locking member is used for belt mounting on one end side of the flat plate having the locking hole. Characterized by a locking tool having a mounting frame. The other locking member is a locking tool having a non-slip projection near the other end of the flat plate.

According to the first aspect, one of the locking members is formed in a curved shape, and the other locking member is formed in a leaf spring shape. Since the other locking member enters the guide groove from the fold side, it elastically deforms in the guide groove. The other locking member is restored and the locking projection engages with the locking hole. As a result, the other locking member is locked and attached to the one locking member. Further, in order to separate the one locking member and the other locking member from the locking tool, the other locking member is pressed and elastically deformed, and the other locking member is removed along the guide groove. It is disengaged from the other locking member.

According to the second aspect of the present invention, the notch is located substantially at the center of the flat plate so as to face each other from both side edges in the longitudinal direction, and the line connecting both notches is a fold, so that both corners of the fold are not angular. As a result, when the other locking member is inserted into the guide groove, both corners of the fold do not hit the guide groove. According to the third aspect, one of the locking members forms a mounting frame on the other end of the substrate, and the other locking member has the mounting frame on one end side of the flat plate having the locking holes. Therefore, when the one locking member and the other locking member are mounted, the mounting frames are positioned to face each other. According to the fourth aspect, since the other locking member has the anti-slip projection near the other end of the flat plate, a finger or the like can be easily caught by the anti-slip projection.

[0011]

[Embodiment of the invention]

 Hereinafter, specific examples of embodiments of the invention will be described with reference to the drawings. 1 to 5 show a fastener applied to a buckle of a belt as an embodiment of the fastener according to the present invention. In FIG. 1, the locking tool 1 is composed of a pair of locking members 10 and 20 which are mutually removable.

As shown in FIGS. 1 and 2, the one locking member 10 is curved in the longitudinal direction of the rectangular substrate 11 and is opposed to both side edges 11 a, 11 a of the curved substrate 11 in the longitudinal direction. Thus, the guide grooves 12, 12 having an L-shaped cross section are connected inward, and the locking projection 13 is integrally formed between the guide grooves 12 at one end 11b of the substrate 11. The one locking member 10 has an attachment frame 15 to which a belt (not shown) coupled to the other end 11c of the substrate 11 is attached. By thus forming the one locking member 10 in a curved shape, the strength of the one locking member 10 is significantly improved as compared with the conventional one.

As shown in FIGS. 1 and 3, the other locking member 20 has a pair of notches 21b and 21b facing each other from both side edges 21a and 21a in the longitudinal direction and substantially in the center of a rectangular flat plate 21. And a flat spring 21 is formed by bending the flat plate 21 with a line connecting the notches 21b, 21b facing each other as a fold 21c. Further, the other locking member 20 is a mounting frame 23 which is connected to one end 21d of the flat plate 21 and which mounts a belt (not shown), and a locking which is formed on the one end 21d and engages with the locking projection 13. It has a hole 24 and a non-slip protrusion 25 protruding toward the other end 21e of the flat plate 21.

Next, a case where one locking member 10 and the other locking member 20 are mounted will be described with reference to FIGS. 4 and 5. As shown in FIGS. 4A and 5A, the other locking member 20 is inserted from the fold 21c side to the one end 14b (one end 11b of the substrate 11) side of the one locking member 10. As shown in FIGS. 4 (b) and 5 (b), when the other locking member 20 is pressed in the direction A and inserted, the other locking member 20 is deformed against the elastic force. To be

A surface 30 of the other locking member 20 having the locking hole 24 (hereinafter referred to as an engaging surface) is slid on the tip 13 a of the locking projection 13 and the other locking member 20 is prevented from slipping. A surface (hereinafter referred to as a sliding surface) 31 from which the projecting projection 25 projects is slid on the side wall surface 12 a of the guide groove 12. When the other locking member 20 is further pressed and inserted, as shown in FIGS. 4 (c) and 5 (c), the sliding surface 31 is completely inserted into the other locking member, and The deformed other locking member is restored by the elastic force, the locking projection 14 is inserted into the locking hole 24, and the other locking member 20 is locked to the one locking member 10. In this way, the one locking member 10 and the other locking member 20 are mounted.

On the contrary, when the one locking member 10 and the other locking member 20 are to be released from the locking tool 1, as shown in FIGS. 4 (c) and 5 (c), slippage is caused. The stopper projection 25 and the mounting frame 23 of the other locking member 20 are sandwiched and pressed by fingers or the like, and the other locking member 20 is deformed (flexed) against the elasticity of the other locking member 20. While maintaining this state, as shown in FIGS. 4B and 5B, the other locking member 20 is pulled out in the B direction.

In addition to the case where the locking tool 1 described above is used as a buckle of a belt, the locking tool 1 of the present invention can be applied to a bag, a bag, a suspender, an accessory and the like and used.

[0018]

[Effect of the invention]

 As described above, according to the present invention, since the shape of one of the locking members is curved, the strength of the locking tool is higher than that of the conventional flat shape. As a result, the strength of the locking device is significantly improved. Also, for example, when the locking device of the present invention is used as a buckle of a belt, since one locking member is formed in a curved shape, the locking device fits (fits) to the curved surface of the body. As a result, the body does not feel uncomfortable when the fastener is attached to the body.

Further, since the locking tool is composed of only two constituent members, one locking member and the other locking member, and the structure of both locking members is simple, respectively, the conventional complicated and many The locking device of the present invention can be manufactured easily and at low cost, as compared with the locking device which requires the constituent members. Moreover, since both corners of the fold connecting the notches are not angular, both corners of the fold do not abut the guide groove when the other locking member is inserted into the guide groove. As a result, the guide groove is not damaged and is not deformed.

Moreover, when the one locking member and the other locking member are mounted, the mounting frames are formed at the positions where the two locking members face each other. Therefore, when a belt or the like is mounted on the mounting frame, Can be used as a buckle. Furthermore, since the other locking member has a non-slip projection for catching a finger or the like, when the both locking members are detached from each other after the both locking members are mounted, the other locking member is attached. The frame and the anti-slip projection are easily sandwiched by the fingers or the like without slipping. As a result, both locking members can be separated more easily than in the conventional case.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an embodiment of a locking device according to the present invention.

FIG. 2 shows one locking member, (a) is a front view,
(B) is a plan view, and (c) is a side view.

FIG. 3 shows the other locking member, (a) is a front view,
(B) is a plan view.

FIG. 4 is a front view for explaining a case where one locking member and the other locking member are attached, and FIG. 4A is a view at the time of starting insertion of the other locking member into the one locking member, and FIG. Is in the middle of insertion
(C) shows each state at the end of insertion.

5 is a cross-sectional view of FIG. 4 for explaining a case where one locking member and the other locking member are attached, and FIG. 5A is a sectional view of FIG. , (B)
In the middle of insertion, (c) shows each state at the end of insertion.

FIG. 6 is an exploded perspective view showing a conventional buckle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Locking tool 10 One locking member 11 Base plate 12 Guide groove 13 Locking protrusion 15 Mounting frame 20 Other locking member 21 Flat plate 21b Cutout 21c Fold 24 Locking hole 25 Non-slip protrusion

Claims (4)

[Utility model registration claims] 1. A locking tool comprising a pair of locking members that can be attached to and detached from each other, wherein the one locking member bends the rectangular substrate in the longitudinal direction and both sides of the curved substrate in the longitudinal direction. A guide groove having an L-shaped cross section is continuously formed so as to face the edge, and a locking projection is integrally formed between the guide grooves at one end of the substrate, and the other locking member is a rectangular flat plate. The other locking member is bent around the center and inserted into the guide groove, and has a locking hole that is engaged with the locking projection, and the other locking member extends from the fold to the guide groove. A locking tool, which is inserted into the. 2. The locking tool according to claim 1, wherein the fold lines pass through notches that are formed at opposite ends of the flat plate in the longitudinal direction and that are opposite to each other. 3. The one locking member forms a mounting frame for mounting a belt at the other end of the substrate, and the other locking member has one of the both ends of the flat plate having the locking hole. The locking tool according to claim 1 or 2, further comprising a mounting frame for mounting a belt. 4. The locking device according to claim 1, 2 or 3, wherein the other locking member has a non-slip projection near the other end of the flat plate.