JPH07100005A - Buckle - Google Patents

Abstract

PURPOSE:To improve operability, and provide large joint force by providing a male member with first resilient protrusions which deform inward by resiliency, and a second resilient protrusion which deforms in a vertical direction by resiliency, and a female member with an aperture part for the male member to be inserted/removed, and a first and a second engagement parts to be engaged with a first and a second stop parts in the male member. CONSTITUTION:When a forward end of a male member 10 is inserted into an aperture part 22a of a female member 20, forward ends of first resilient protrusions 12a, 12b of the male member 10 receive energization force inward by inner wall taper surfaces 26a, 26b of a casing 22 of the female member 20, and a forward end of a second resilient protrusion 15 deforms by resiliency in a vertical direction with it. As insertion is completed, they restore by resiliency, respectively, so first stop parts 13a, 13b of the resilient protrusions 12a, 12b are jointed with first engagement parts 25a, 25b of a casing 22. Simultaneously, a second stop part 16 of the second resilient protrusion 15 is jointed with second engagement parts 28a, 28b in an inner wall surface of the casing 22. Outer sides of the forward ends of the first resilient protrusions 12a, 12b are then exposed from slots 23a, 23b of the female member 20, so they can be separated by pressure by fingers or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pair of male and female buckles that can be separated from each other while connecting a belt or the like.

[0002]

2. Description of the Related Art Conventionally, as a prior art document relating to buckles, one disclosed in Japanese Patent Laid-Open No. 54-31338 is known. This is composed of a female member and a male member, the female member is a flat tubular body, and slots facing the upper wall and the lower wall are formed. A flexible arm is formed on the male member. The locking portion at the end of the flexible arm of the male member snap-engages with the edge of the slot of the female member. On the other hand, the separation of the female member and the male member is accomplished by pushing the flexible arm of the male member inward with a finger to bend and disengage the engagement between the locking portion and the edge of the slot of the female member. Is.

Further, the one disclosed in Japanese Patent Laid-Open No. 4-221502 is known. In this structure, when the male member is completely inserted into the female member, when the lock member inserted into the female member is moved to the locked position, elastic deformation of the flexible arm of the male member is prevented and the flexible arm is flexed. It is intended to prevent the engagement of the lock portion of the arm and the edge of the slot of the female member from being released.

[0004]

By the way, when the buckle like the former case is used with a large weight, the female member and the male member are pulled by a large load in a direction to be separated from each other. This pulling force may displace the distal end of the flexible arm and disengage it, and the female member and the male member may be separated. As a countermeasure against this, increasing the size of the female member and the male member to increase the strength of the structure of the flexible arm or the like leads to deterioration of operability and mountability.

In the latter buckle, when the lock member is in the lock position, elastic deformation is prevented even if the flexible arm of the male member exposed to the outside from the slot of the female member is pushed inward. To be done. For this reason, the separation of the male member and the female member due to careless operation is temporarily eliminated,
If a large weight is applied to the buckle when the lock member is in the release position, the same problem as the former may occur.

Therefore, the present invention has been made to solve such a problem, and an object thereof is to provide a buckle which is small in size, has good operability, and has a large coupling force.

[0007]

A buckle according to claim 1 is a buckle composed of a separable male member and a female member, the male member being substantially parallel to each other from both sides of one side wall of the belt connecting portion. And a first engaging portion outside the vicinity of its tip, and elastically deformed inward with the first engaging portion by an urging force from the outside.
Of the first elastic projection and the elastic projection of the belt connecting section from the center of one side wall of the belt connection section. A second locking portion is provided in a vertical direction, and the second locking portion cooperates with elastic deformation of the first elastic protrusion and is substantially in the elastic deformation direction of the first elastic protrusion. A second elastic protrusion that elastically deforms in the vertical direction, the female member is formed integrally with the belt connecting portion, and the insertion of the male member and the insertion of the male member are completed. In a state, a flat casing having a slot for exposing the outer portion near the tip of the first elastic protrusion to the outside, and formed on both side walls of the casing. A first engaging portion which engages with the first engaging portion, and the second engaging member formed on the flat surface of the housing, when the male member is completely inserted. Those having a second engagement portion that engages with the stop portion.

Further, the female member of the buckle according to claim 2 is further disposed by being inserted into the flat surface of the housing, and is moved on the outer surface of the buckle so that the female member of the male member is moved. The lock member is provided with a position that prevents the bending of the tip of the second elastic protrusion due to the elastic deformation and a position that allows the bending of the tip of the second elastic protrusion due to the elastic deformation.

[0009]

According to the present invention, when the male member is inserted into the opening of the female member casing, the first elastic projections are elastically deformed inward by both side walls of the casing, and the second elastic protrusion is elastically deformed. The elastic protrusion is elastically deformed from the inner wall surface of the flat surface of the housing in a direction substantially perpendicular to the elastic deformation direction of the first elastic protrusion. In the coupling completed state, the first engaging portion of the first elastic protrusion of the male member has the first engaging portion of the female member and the second engaging portion of the second elastic protrusion of the male member. The second engaging portions of the female member are engaged with each other. In order to obtain the separated state, when the outer portion near the tip of the first elastic protrusion of the male member exposed to the outside from the slot of the female member is pressed inward, the first elastic protrusion of the male member is removed. The second elastic protrusion is elastically deformed in a direction substantially perpendicular to the elastic deformation direction of the first elastic protrusion in cooperation with the elastic deformation. Therefore, the first engaging portion of the first elastic protrusion of the male member is the first engaging portion of the female member, and the second engaging portion of the second elastic protrusion of the male member is the female member. The engagement with the second engaging portion of the buckle is released almost at the same time, and the male member and the female member of the buckle are separated.

The female member of the buckle of claim 2 is the same as that of claim 1.
In addition to the above function, a lock member is provided, and by operating the lock member as necessary, it is possible to prevent the distal end of the second elastic protrusion of the male member from bending due to elastic deformation. Inadvertent separation from the joined state of the member and the female member is prevented.

[0011]

EXAMPLES The present invention will be described below based on specific examples.

<First Embodiment> FIG. 1 is an external view showing a separated state of a buckle according to a first embodiment of the present invention, and FIG.
2 is a left side view of the male member of the buckle according to the first embodiment of the present invention, and FIG. 3 is a right side view of the female member of the buckle according to the first embodiment of the present invention of FIG. The present embodiment corresponds to the embodiment of claim 1.

In FIGS. 1, 2 and 3, reference numeral 10 is one male member forming the buckle. 11 is a male member 10
The belt connecting portion of the belt 2
One end of is inserted and connected. Also, 12a, 12
Reference numeral b denotes a first elastic projection portion which is independently provided substantially parallel to each other from both sides of the side wall 11a of the belt connecting portion 11, 13a,
Reference numeral 13b denotes a first locking portion formed on the outer side near the tips of the first elastic protrusions 12a and 12b, and 14a and 14b denote first elastic portions inside the tips of the first elastic protrusions 12a and 12b. A taper portion formed with a taper surface in the elastic deformation direction of the protrusions 12a and 12b, and 15 is a side wall 11a of the belt connecting portion 11.
Is a second elastic protrusion that is provided so as to protrude substantially parallel to the first elastic protrusions 12a and 12b from the center, and 16 is a second elastic protrusion that is provided on one side near the tip of the second elastic protrusion 15. It is a locking part. Reference numerals 17a and 17b denote taper portions having tapered surfaces formed on both outer sides near the tip of the second elastic protrusion 15 in the same direction as the elastic deformation direction of the first elastic protrusions 12a and 12b.
Reference numerals a and 18b are guide ribs provided on one side near the base of the second elastic protrusion 15.

In the male member 10, the first elastic protrusions 12a and 12b and the second elastic protrusion 15 are independently and substantially protruded from one side wall 11a of the belt connecting portion 11 substantially parallel to each other.
Here, the shape of the leg portion elastically deformed on the side wall 11a side of the first elastic protrusions 12a and 12b and the second elastic protrusion 15 is such that the first elastic protrusions 12a and 12b and the second elastic protrusions are formed. The shape is not limited to the monopod shape like the portion 15, but other than this, a bipod shape or the like may be used as long as it does not hinder the elastic deformation. The tip shape of the second elastic protrusion 15 is
The shape is not limited to the shape shown in FIG. 1 as long as the shape can withstand elastic deformation and surely engages, and the shape may be divided into left and right.

Reference numeral 20 is the other female member which constitutes the buckle. Reference numeral 21 denotes a belt connecting portion of the female member 20, and the other end of the belt 2 is inserted and attached to the belt connecting portion 21. Further, 22 is a flat housing integrally formed with the belt connecting portion 21 of the female member 20, 22a is an opening of the housing 22 into which the male member 10 is inserted and removed, and 23a and 23b are housing 22.
Slots formed in both side walls 24a, 24b of the
Reference numerals a and 25b are first engaging portions formed on both side walls 24a and 24b of the housing 22, and 26a and 26b are tapered surfaces formed on respective inner wall surfaces of both side walls 24a and 24b of the housing 22. . 27 a and 27 b are ribs formed of rail-like projections formed on the inner wall surface of the flat surface of the housing 22.
7a and 27b are tapered on the side of the opening 22a of the housing 22 into which the male member 10 is inserted and removed. Also, 28a, 2
Reference numeral 8b is a second engagement portion formed by utilizing the end surface of the ribs 27a, 27b opposite to the opening 22a of the housing 22 into which the male member 10 is inserted and removed. Further, 29a and 29b are guide grooves in which the guide ribs 18a and 18b of the male member 10 are guided. The structure of the belt connecting portions 11 and 21 for connecting the belt 2 is not related to the gist of the present embodiment, and thus the description thereof is omitted.

Next, a procedure for connecting the male member 10 to the female member 20 will be described.

FIG. 4 is an external view showing a state in which the buckle according to the first embodiment of the present invention is completely coupled, and FIG.
-A sectional view taken along line A, and FIG. 6 is a sectional view taken along line BB in FIG. Further, FIG. 7 is a partial cross-sectional view showing a state where the male member 10 and the female member 20 are being coupled, and FIG. 8 is a cross-sectional view taken along the line C-C of FIG. 7. 4 to 7, the belt 2 connected to the male member 10 and the female member 20 shown in FIG. 1 is omitted.

First, the male member 10 is moved toward the female member 20, and the first elastic protrusion 12 of the male member 10 is moved.
a, 12b and the respective tips of the second elastic protrusions 15 to the female member 2
The insertion is started by facing the opening 22a of No. 0. Then, the outer sides of the first elastic protrusions 12a and 12b of the male member 10 near the tips are tapered surfaces 26a and 26b formed on the inner wall surfaces of the side walls 24a and 24b of the housing 22 of the female member 20, respectively.
Both receive inward urging force. Also, the male member 10
Near the tip of the second elastic protrusion 15 of the first elastic protrusion 12
It is elastically deformed in a direction substantially perpendicular to the elastic deformation directions of a and 12b. That is, as shown in FIGS. 3 and 5, the male member 10
The upper side in the vicinity of the tip of the second elastic protrusion 15 receives a downward urging force from ribs 27a and 27b formed by rail-like protrusions on the inner wall surface of the flat plane of the housing 22 of the female member 20.

Then, the first elastic projection 12 of the male member 10
a and 12b are elastically deformed as shown in FIG. 7, the second elastic protrusion 15 is elastically deformed as shown in FIG.
0 of the housing 22 is inserted into the housing 22 through the opening 22a. Then, the side walls 11b and 11c of the belt connecting portion 11 of the male member 10 are brought into contact with the end surface of the opening 22a of the female member 20. This position is the insertion completion position of the male member 10 with respect to the female member 20. At the insertion completion position, the first elastic protrusions 12a and 12b of the male member 10 elastically return outward and the second elastic protrusion 15 elastically returns upward. Thereby, the first elastic protrusion 12 of the male member 10
a and 12b first locking portions 13a and 13b and female member 20
The first engaging portions 25a formed on both side walls of the housing 22 of
The coupling with 25b is completed. At the same time, the second of the male member 10
Ribs 27a and 27b formed on the inner wall surfaces of the second locking portion 16 of the elastic protrusion 15 and the housing 22 of the female member 20 on the flat surface
The coupling of each of the front end faces with the second engaging portions 28a and 28b is completed. In this connection completed state, the outer portions of the male member 10 near the tips of the first elastic protrusions 12a, 12b are exposed to the outside from the slots 23a, 23b formed in the female member 20 and can be pressed by a fingertip or the like. Become.

Next, in order to separate the male member 10 from the female member 20, the first elastic protrusions 12a, 12b of the male member 10 exposed from the slots 23a, 23b of the female member 20 to the outside.
The outer portion in the vicinity of the tip is pressed inward by two fingertips or the like at the same time. Then, the first elastic protrusion 1 of the male member 10
2a and 12b are both elastically deformed inward and
The first engaging portions 13a, 13b formed on the outer side of the elastic protrusions 12a, 12b near the tips thereof are disengaged from the first engaging portions 25a, 25b of the female member 20. Furthermore, the male member 1
The second elastic protrusion 15 of the male member 10 elastically deforms the first elastic protrusions 12a, 12b in cooperation with the inward elastic deformation near the tips of the first elastic protrusions 12a, 12b. Elastically deformed in a direction substantially perpendicular to the direction. That is, the taper portions 14a and 14b of the first elastic protrusions 12a and 12b elastically deform the taper portions 17a and 17b of the second elastic protrusion 15 downward. Therefore, the second engaging portion 16 formed in the vicinity of the tip of the second elastic protrusion 15 and the second engaging portions 28a and 28b of the female member 20 are disengaged from each other. In this way, by disengaging the first locking portions 13a, 13b and the second locking portion 16 of the male member 10, the male member 10
And the female member 20 become separable.

In this way, the male member 10 becomes the female member 20.
When the male member 10 becomes separable, the component force of the pressing force applied to both outer sides near the tips of the first elastic protrusions 12a and 12b of the male member 10 acts in the direction of separating the male member 10 from the female member 20. To do. Then, when the male member 10 starts to move in the separation direction, as shown in FIG. 7, the elastic force of the first elastic protrusions 12a and 12b of the male member 10 to return elastically is applied to the first locking portion 13a. , 13b to the tapered surfaces 26a, 26b of the side walls 24a, 24b of the housing 22 of the female member 20, and their component forces act in the direction of separating the male member 10 and the female member 20. Therefore, the male member 10 is replaced by the female member 2
When separated from 0, the slot 23 of the female member 20
By simply pressing the vicinity of the tips of the first elastic protrusions 12a and 12b of the male member 10 exposed to the outside from a and 23b, the male member 10 is vigorously separated so as to jump out from the female member 20. .

As described above, the buckle of the first embodiment of the present invention is a buckle composed of the separable male member 10 and female member 20, and the male member 10 is provided on the side wall 11a of the belt connecting portion 11. The first locking portions 13a and 13b are provided on both sides independently of each other so as to project substantially parallel to each other, and outside the vicinity of the tip.
And has a first locking portion 13 by an urging force from the outside.
First elastic protrusions 12a and 12b elastically deformed inward with a and 13b, and one side wall 11 of the belt connecting portion 11.
The first elastic protrusions 12a, 12b are provided so as to protrude from the center of a in substantially parallel to the first elastic protrusions 12a, 12b, and the first elastic protrusions 12a, 12b
The second locking portion 1 is formed in a direction substantially perpendicular to the elastic deformation direction of b.
6, the second locking portion 16 has the first elastic protrusion 12a,
The first elastic protrusions 12a, 12 cooperate with the elastic deformation of 12b.
The second elastic protrusion 15 elastically deforms in a direction substantially perpendicular to the elastic deformation direction of b, the female member 20 is formed integrally with the belt connecting portion 21, and the male member 10 is inserted and removed. The flat housing 2 having the opening 22a and the slots 23a and 23b for exposing the outer portion near the tips of the first elastic protrusions 12a and 12b to the outside in the state where the insertion of the male member 10 is completed.
2 and the first locking portions 13a, 13b formed on both side walls 24a, 24b of the housing 22 when the male member 10 is completely inserted.
First engaging portions 25a, 25b that engage with the ribs 27a, which are formed on the inner surface side of the flat surface of the housing 22, and that engage with the second locking portion 16 when the male member 10 is completely inserted. It is provided with the second engaging portions 28a and 28b formed of the end surface of 27b.

Therefore, the male member 10 and the female member 20 are coupled to each other by connecting the first elastic protrusions 12a and 12b of the male member 10 and the second elastic protrusion 15 to the opening 22a of the housing 22 of the female member 20. The side wall 11b, 11c of the belt connecting portion 11 of the male member 10 is inserted until it comes into contact with the opening 22a. Also, the male member 10 and the female member 2
0 is separated from the slot 23 of the housing 22 of the female member 20.
This is achieved by pressing the outer portion of the first elastic protrusions 12a, 12b of the male member 10 exposed to the outside from a, 23b in the vicinity of the tips.

Therefore, the buckle of the present embodiment remains compact without complicating the structure, and when the male member 10 and the female member 20 are coupled or separated from each other, a complicated operation is required as compared with the conventional one. The binding force can be increased without the need for. For this reason, it is possible to configure a buckle that is separable by connecting belts that are heavy in weight. Further, the buckle of this embodiment has the effect that it can be made smaller or thinner if the withstand load in the pulling direction is set to the same level as the conventional buckle.

By the way, the second of the female member 20 of the above embodiment
As the engaging portions 28a and 28b, the end surfaces of the ribs 27a and 27b formed on the inner surface side of the flat surface of the housing 22 are used, but the present invention is not limited to this. Instead of being a hole, it may be a hole or the like having a predetermined shape formed on the flat surface of the housing 22. At this time, the second locking portion 16 of the male member 10 has a convex shape near the tip of the second elastic projection 15 corresponding to the hole of the housing 22 or the like. In particular, the female member 20 using the ribs 27a and 27b as in this embodiment
In the second engaging portions 28a and 28b, it is not necessary to form a hole or the like for coupling with the second locking portion 16 of the male member 10 on the outer surface side of the flat surface of the housing 22, and thus the male engaging portion The coupling strength between the member 10 and the female member 20 can be increased, and the female member 2
There is an effect that the design design in the appearance of 0 is not hindered.

<Second Embodiment> FIG. 9 is an external view showing a separated state of the buckle according to the second embodiment of the present invention, and FIG. 10 is a view showing the female member of the buckle according to the second embodiment of the present invention shown in FIG. It is a perspective view which shows the state which removed the lock member. Also,
FIG. 11 is an external view showing a state in which the lock member is in the unlocked position in the coupling completed state of the buckle according to the second embodiment of the present invention, and FIG. 12 is a sectional view taken along the line D-D of FIG. 13 is a cross-sectional view taken along the line D-D of FIG. 11 when the lock member is moved to the lock position, and FIG. 14 is a cross-sectional view showing a state in which the lock member is in the lock position and is being joined.
The present embodiment corresponds to the embodiment of claim 2, and those having the same configurations or corresponding portions as those of the first embodiment described above are designated by the same reference numerals and symbols, and detailed description thereof will be omitted. . Further, in FIGS. 10 to 14, the belt 2 connected to the male member 10 and the female member 20 is omitted.

In FIG. 9, the male member 10 of the buckle according to this embodiment is the same as that of the first embodiment, and the difference in appearance between this embodiment and the first embodiment is that the casing of the female member 20 is different. That is, the lock member 50 is inserted into and fitted to the flat surface 22. Although the operation portion 51, which is the external surface of the lock member 50 of the present embodiment, has a planar shape, a display for instructing the lock direction, an irregularity for slippage for a moving operation, and the like are appropriately formed. be able to.

As shown in FIG. 10, the lock portion 52 and the four claw portions 53 are provided on the rear surface side of the operation portion 51 of the lock member 50.
And are integrally formed. Further, two hemispherical recesses 54 and 55 are formed on the back surface side of the operation portion 51. On the other hand, a counterbore 30 that is slightly larger than the range in which the lock member 50 is moved is formed on the flat surface of the housing 22 of the female member 20, and the lock member 5 is attached to the counterbore 30.
Escape hole 31 of lock part 52 and insertion hole 32 of claw part 53
Also, a guide hole 33 following the insertion hole 32 is provided. Further, the spot facing portion 30 has a hemispherical convex portion 35 at the tip.
The elastic beam 34 is formed. This convex portion 35
However, when it is fitted in the recess 53 of the lock member 50, it is in the release position, and when it is fitted in the recess 54, it is in the lock position.

As shown in FIGS. 11 and 12, the female member 20 and the male member 10 when the lock member 50 is in the release position.
The procedure for the usual coupling and separation with and is the same as in the first embodiment, and detailed description thereof will be omitted. Therefore,
Here, the case where the lock member 50 shown in FIG. 13 is moved to the lock position will be mainly described.

First, the male member 10 is inserted into the female member 20, and the first engaging portions 13a and 13b of the first elastic protrusions 12a and 12b of the male member 10 are attached to the housing 22 of the female member 20. The first engaging portions 25a and 25b formed on both side walls and the second engaging portion 16 of the second elastic protrusion 15 are ribs formed on the inner wall surface of the plane surface of the housing 22 of the female member 20. 27a, 27
The coupling with the second engaging portions 28a, 28b on the respective tip surfaces of b is completed. In the state where the coupling of the male member 10 and the female member 20 is completed, the lock member 50 is moved from the release position of FIG. 12 to the lock position of FIG. At this time, the U-shaped lock portion 5 formed on the lock member 50
A part of 2 is inserted into the gap between the side of the male member 10 that is bent by the elastic deformation of the tip of the second elastic protrusion 15 and the inner wall surface of the housing 22 of the female member 20.

In order to separate the male member 10 from the female member 20 when the locking member 50 is moved to the locked position, the slots 23a and 23b formed in the female member 20 are separated.
The first elastic protrusion 12 of the male member 10 exposed from the outside
The outer portions near the tips of a and 12b are pressed with a fingertip or the like. Due to the pressing force, the first elastic protrusion 1 of the male member 10
2a and 12b are elastically deformed inward, and in cooperation with the elastic deformation, the second elastic protrusion 15 of the male member 10 is in a direction substantially perpendicular to the elastic deformation direction of the first elastic protrusions 12a and 12b. It receives a component force to elastically deform. However, the second elastic protrusion 15 of the male member 10 cannot be elastically deformed by the lock portion 52 of the lock member 50. Therefore, the second engaging portion 16 formed near the tip of the second elastic protrusion 15 of the male member 10 and the second engaging portion 2 of the female member 20.
The decoupling with 8a and 28b is prevented.

When the male member 10 is inserted into the female member 20 and the lock member 50 is in the locked position,
As shown in FIG. 4, the lock portion 52 of the lock member 50 is pushed when the tip of the second elastic projection 15 of the male member 10 is inserted. Then, after pushing the lock member 50 to the release position at the final insertion position, the first elastic protrusion 12 of the male member 10 is pushed.
The first engaging portions 13a and 13b of a and 12b and the second engaging portion 16 of the second elastic protrusion 15 are the first engaging portions 25a and 25b and the second engaging portion of the female member 20, respectively. Part 28a,
28b is engaged. That is, regardless of the position of the lock member 50, the male member 10 can be put into the female member 20 in a completed state, and at that time, the coupling member is completed and the locking member 50 is in the release position. After that, the lock member 50 is appropriately moved to the lock position as necessary, whereby the first elastic protrusions 12a, 1a of the male member 10 are moved.
The coupling between the second locking portion 16 and the second engaging portions 28a and 28b of the female member 20 is prevented from being released by the cooperation with 2b, and the male member 10 and the female member 20 are inseparable. It

Thus, in addition to the structure of the buckle of the first embodiment, the buckle of the second embodiment of the present invention includes the female member 2
0 is inserted and arranged in the flat surface of the housing 22, and is moved and operated on the outer surface, so that the second member of the male member 10 is moved.
The lock member 50 is provided at a position that prevents the bending of the tip of the elastic protrusion 15 due to the elastic deformation and a position that allows the bending of the tip of the second elastic protrusion 15 due to the elastic deformation.

Therefore, the coupling and separation of the male member 10 and the female member 20 are achieved in the same manner as in the first embodiment, and the locking member 50 makes it impossible to separate the male member 10 and the female member 20 as needed. Can be in a different state.

Therefore, similarly to the first embodiment, the buckle of the present embodiment remains small without complicating the structure, and has no conventional structure when the male member 10 and the female member 20 are joined or separated. The binding force can be increased as compared with the one without requiring complicated operations. For this reason, it is possible to configure a buckle that is separable by connecting belts that are heavy in weight. Further, the buckle of the present embodiment can be made smaller or thinner if the withstand load in the pulling direction is the same as that of the conventional buckle. Further, the lock member 5
By moving 0, the effect that the male member 10 and the female member 20 can be prevented from accidentally falling into the separated state from the coupled state is added.

[0036]

As described above, the buckle of claim 1 is a buckle composed of a separable male member and a female member, and the male member is formed with the first engaging portion and is directed inward. The female member includes a first elastic protrusion that elastically deforms, and a second elastic protrusion that has a second locking portion that elastically deforms in a direction substantially perpendicular to the elastic deformation direction. A flat casing having an opening for inserting and removing the male member and a slot, first engaging portions formed on both side walls of the male casing for engaging the first locking portion, and a flat plane of the casing. And a second engaging portion that is formed on the second engaging portion and that engages with the second engaging portion. In the coupled state, the first engaging portion, the first engaging portion, and the second engaging portion. And the second engaging portion are engaged with each other, and the second elastic protruding portion cooperates with each other by pressing the first elastic protruding portion of the male member in order to bring them into the separated state. There is an effect that binding strength is greater with small and operability for engagement, respectively deviates is good.

According to the buckle of claim 2, in addition to the effect of claim 1, the female member is further disposed by being inserted into the flat surface of the housing of the female member, and is moved on the outer surface. Thus, the lock member is provided that can be positioned to prevent the bending of the tip of the second elastic projection of the male member due to elastic deformation and to allow the bending of the tip of the second elastic projection to bend due to the elastic deformation. Therefore, the male member cannot be changed from the connected state with the female member to the separated state by moving and operating the lock member as necessary. This has the effect of preventing inadvertent separation of the male and female members from the joined state.

[Brief description of drawings]

FIG. 1 is an external view showing a separated state of a buckle according to a first embodiment of the present invention.

FIG. 2 is a left side view of the male member of the buckle according to the first exemplary embodiment of the present invention shown in FIG.

FIG. 3 is a right side view of the female member of the buckle according to the first exemplary embodiment of the present invention shown in FIG.

FIG. 4 is an external view of a buckle according to a first embodiment of the present invention, showing a completed coupling state.

5 is a cross-sectional view taken along the line AA of FIG.

6 is a cross-sectional view taken along the line BB of FIG.

FIG. 7 is a partial cross-sectional view showing the buckle according to the first embodiment of the present invention during coupling.

FIG. 8 is a cross-sectional view taken along the line CC of FIG.

FIG. 9 is an external view showing a separated state of the buckle according to the second embodiment of the present invention.

FIG. 10 is a perspective view showing a state in which the lock member is removed from the female member of the buckle according to the second embodiment of the present invention shown in FIG.

FIG. 11 is an external view showing a state in which the lock member is at the release position in the completed coupling state of the buckle according to the second embodiment of the present invention.

12 is a cross-sectional view taken along the line DD of FIG.

13 is a cross-sectional view taken along the line D-D in FIG. 11 when the lock member is moved to the lock position.

FIG. 14 is a cross-sectional view showing a state in which the lock member of the buckle according to the second embodiment of the present invention is in the middle of being coupled with the lock member in the lock position.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Male member 11 Belt connection part 12a, 12b 1st elastic projection part 13a, 13b 1st locking part 15 2nd elastic projection part 16 2nd locking part 20 Female member 21 Belt connection part 22 Housing 22a Openings 23a, 23b Slots 25a, 25b First engaging portions 28a, 28b Second engaging portions

Claims (2)

[Claims] 1. A buckle comprising a separable male member and a female member, wherein the male member is independently provided on both sides of one side wall of the belt connecting portion so as to be substantially parallel to each other, and the male member is provided in the vicinity of the tip thereof. A first elastic protrusion having an outer first locking portion and elastically deforming inward with the first locking portion by an urging force from the outer side; and a side wall of the belt connecting portion. Of the first elastic projection is provided substantially parallel to the first elastic projection, and a second locking portion is provided near the tip thereof in a direction substantially perpendicular to the elastic deformation direction of the first elastic projection. A second elastic projection part in which the second locking part cooperates with elastic deformation of the first elastic projection part and elastically deforms in a direction substantially perpendicular to the elastic deformation direction of the first elastic projection part; The female member is integrally formed with the belt connecting portion, and the male member is inserted into and removed from the male member. A flat casing having a slot that exposes an outer portion near the tip of the first elastic protrusion to the outside in the insertion completed state, and a flat casing formed on both side walls of the casing in the insertion completed state of the male member. A first engagement portion that engages with the first engagement portion; and a second engagement portion that is formed on an uneven plane of the housing and that engages with the second engagement portion when the male member is completely inserted. And an engaging portion of the buckle. 2. The female member is further disposed by being inserted into the flat surface of the housing, and is moved on the outer surface of the female member so that the second elastic protrusion of the male member is removed. The buckle according to claim 1, further comprising a lock member that can be positioned to prevent bending due to elastic deformation of the tip end and position to allow bending due to elastic deformation of the tip end of the second elastic protrusion. .