TWI527526B - Front release buckle - Google Patents

Description

Front release buckle

The present invention relates to a front release type buckle that operates a front portion to be releasable.

Conventionally, in various applications such as clothes, purses, shoes, and packaging articles, in order to connect the string members such as the straps, a buckle that detachably engages the plug and the socket is used.

This type of buckle has a simple operation for loading and unloading, and on the other hand, it is required to be unconsciously and does not suddenly fall off. As a product of this type, there is a front release type buckle that can be disengaged by the operation of the front portion.

Among the front release type buckles, those in which the plug portion and the socket portion are respectively engaged and fixed are known.

For example, Patent Document 1 discloses a latching projection of a convex engaging portion of a plug portion, and a buckle that protrudes in a thickness direction of a flat-shaped buckle.

Patent Document 2 describes a buckle in which a first convex portion that is engaged with a socket at a tip end of a plug protrudes in a thickness direction of a flat buckle.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 3248104

[Patent Document 2] Japanese Laid-Open Patent Publication No. 2006-204619

In the buckle described in Patent Document 1 and Patent Document 2, since the locking projection protrudes in the thickness direction of the buckle, the thickness of the buckle becomes larger. Therefore, for example, when such a buckle is used in a rucksack or the like, since the thickness of the buckle is large, there is a problem that the mounting position is restricted or the design of the overall canvas is adversely affected.

Accordingly, an object of the present invention is to provide a front release type buckle which can suppress a thickness dimension to a minimum.

A front release type buckle according to the present invention is characterized by comprising: a plug; a socket into which the plug is inserted and engaged, the plug having: a base; a leg protruding from the base; and a card formed at the foot The socket has a main body having an insertion opening, and a accommodating space into which the insertion portion is inserted from the insertion opening formed in the body; and the main body is formed to be engaged with the engagement portion And an operation unit that disengages the engagement portion from the engaged portion, the plug and the socket are flat, the leg portion is flat and flexible in a thickness direction, and the engagement portion is The engaged portion is engaged in the thickness direction, and the engaging portion protrudes in a width direction of the leg portion and is provided in a thickness range of the leg portion.

In such an invention, since the engaging portion of the plug does not protrude in the thickness direction but protrudes in the width direction, the thickness of the socket in which the plug and the engaging portion are housed can be reduced. Therefore, the thickness of the buckle does not become large, and the thickness can be reduced. For example, when such a front release type buckle having a small thickness is used in a rucksack or the like, since the thickness of the buckle is small, the mounting position is not limited. Moreover, since the thickness is small, the buckle is not too conspicuous, and jamming does not occur, and the overall design of the rucksack or the like is not adversely affected.

According to the invention, in the state in which the plug and the socket are engaged, the operation portion and the engagement portion are disposed to be in contact with each other, and the operation portion is provided at a position facing the leg portion in the thickness direction. The thickness direction described above is flexible, and it is preferable to have a convex portion inside the socket.

In such an invention, the operation portion is bent toward the engagement portion side, and the convex portion can be pressed toward the leg portion. At this time, since the engagement between the engaging portion and the engaged portion can be released, the leg portion can be pushed out toward the insertion opening side of the socket.

In the present invention, the engaging portion is an inclined portion provided with an inclined surface on the operation portion side, and it is preferable that the operating portion is bent toward the engaging portion side to press the convex portion against the inclined surface.

In such an invention, the operation portion is bent toward the engagement portion side, and the convex portion can be pressed toward the inclined surface. At this time, since the convex portion is bent toward the engaging portion side while sliding on the inclined surface, the engagement between the engaging portion and the engaged portion is released, and the insertion portion is pushed out toward the insertion opening side of the socket. Therefore, pressing the operation portion, the plug is separated from the socket and pushed out. Therefore, as long as the operation portion is pressed, the plug and the socket can be surely separated.

In the present invention, it is preferable that the angle of the inclined surface is 15°.

In such an invention, since the angle of the inclined surface is 15°, the convex portion can smoothly slide on the inclined surface. Therefore, pressing the operation portion allows the plug to be separated from the socket and smoothly pushed out. Therefore, as long as the operation portion is pressed, the plug and the socket can be more reliably separated.

In the present invention, it is preferable to have a pair of holding portions for positioning the plug protruding from the base portion and the socket.

According to such an invention, since the pair of holding portions for positioning the plug and the socket are held, the engagement between the engaging portion and the engaged portion can be surely performed. Further, for example, after the torsional stress is applied to the plug and the socket, since the plug and the socket are not displaced, the engagement between the engaging portion and the engaged portion is not released, and the engagement can be surely maintained. As a buckle function.

In the present invention,

It is preferable that the leg portion is inclined so as to be closer to the operation portion side in the insertion direction toward the leg portion.

In such an invention, since the leg portion protrudes from the base portion toward the operation portion side from the holding portion, the engagement portion can be pressed after being slightly bent. Therefore, even if the thickness of the front release type buckle is reduced, the separation and ejection of the plug and the socket by the operation portion can be performed. Therefore, the thickness dimension of the front release type buckle can be further reduced.

[Formation for carrying out the invention]

Hereinafter, embodiments of the present invention will be described based on the drawings.

An embodiment of the present invention is shown in Figs. 1 to 12 .

The overall configuration of the front release type buckle will be described with reference to Figs. 1 to 3 .

Fig. 1 is a plan view showing the overall configuration of an embodiment of the present invention. Fig. 2 is a side view showing the overall configuration of the above embodiment. Fig. 3 is a front elevational view showing the overall configuration of the above embodiment.

As shown in each of Figs. 1 to 3, the front release type buckle 1 of the present embodiment includes a plug 10, and a socket 20 into which the plug 10 is inserted and engaged.

As shown in the above figures, the front release type buckle 1 of the present embodiment is a connector for connecting/separating a string-shaped member, for example, a connecting/separating belt, and the like, and is provided with a plug integrally molded of synthetic resin. 10; a socket 20 integrally formed of a synthetic resin.

Further, the material of the plug 10 and the socket 20 is not limited to a synthetic resin, and may be other materials such as metal, and is not limited to injection molding, and may be formed by another molding method such as light molding or casting.

The configuration of the plug will be described with reference to Figs. 4 and 5 .

Fig. 4 is a plan view showing the plug of the above embodiment. Fig. 5 is a side view showing the plug of the above embodiment.

According to FIGS. 4 and 5, the plug 10 is integrally molded by injection molding of a synthetic resin, and has a base portion 11 having a pair of leg portions 12, and engaging portions 14 respectively formed at the leg portions 12; A strap mounting portion 19 such as a strap is inserted.

The leg portion 12 is formed in parallel with the width direction of the base portion 11 (the direction perpendicular to the insertion direction of the plug 10 of the socket 20 and the thickness direction of the socket 20, respectively, in the left-right direction of FIG. 1), and is oriented in the longitudinal direction (relative to The insertion direction of the plug 10 of the socket 20 extends in the up-and-down direction of FIG. 1 and is parallel to each other, and each of the intermediate or front end sides is elastically deformable toward the thickness direction (the direction orthogonal to the width direction and the insertion direction, respectively). .

Further, the pair of leg portions 12 are inclined so as to be closer to the operation portion 27A side toward the insertion direction, whereby the force of the elastic deformation in the thickness direction can be received by the entire leg portion 12.

The engaging portions 14 are formed by protrusions extending from the front ends of the leg portions 12 in the width direction, and the front ends of the leg portions 12 are formed in a T-shape when viewed in plan. Further, the engaging portion 14 is formed at the front end portion of the leg portion 12, and the dimension (height) in the thickness direction of the engaging portion 14 is formed so as not to be larger than the height of the leg portion 12.

Further, the engaging portion 14 includes an inclined portion 14B formed at the front end portion of each of the leg portions 12, and a connecting inclined portion 14D that connects the inclined portions 14B in the wide direction. The pair of leg portions 12 restrict the deformation in the width direction due to the external force by the connecting inclined portion 14D. Further, when the pair of leg portions 12 are elastically deformed in the thickness direction, the inclined portions 14D are connected, and the respective leg portions 12 are deformed in the same manner.

Further, each of the inclined portion 14B and the connecting inclined portion 14D includes a gently inclined inclined surface 14A whose thickness dimension becomes smaller toward the distal end side in the insertion direction, and a connecting inclined surface 14C.

As shown in FIG. 5, a pair of holding portions 16 are provided outside the pair of leg portions 12. The pair of holding portions 16 are arranged in a columnar shape that is separated from the base portion 11 in the width direction, and is a columnar member that extends in the insertion direction, and the distal end thereof is separated from the engaging portion 14. The thickness of the holding portion 16 is smaller than the thickness of the base portion 11 and larger than the thickness of the leg portion 12.

Moreover, the holding portion 16 has a convex holding convex portion 16A provided along the outer side in the width direction.

The engaging portion 14 and the holding portion 16 are guided by a concavo-convex shape (described later) formed inside the socket 20, and by the guidance, the plug 10 is induced at the time of the insertion operation. Go to the right place.

Moreover, as shown in FIG. 4, the strap attachment portion 19 is formed by the intermediate portion of the base portion 11. The strap attachment portion 19 has a strap attachment hole 19A into which the end portion of the strap can be inserted, and at the end portion of the plug 10, at the position of the end portion of the base portion 11, the first extension extending in the width direction is provided. In the crossbar 19B, a second crossbar 19C is placed in the middle of the strap attachment hole 19A, and the strap attachment hole 19A is divided into two ends of the insertion direction distal end side 19D and the insertion direction rear end side 19E by the second crossbar 19C. side.

Thereby, the tape (not shown) is inserted into the tape attachment hole 19A, the periphery of the second crossbar 19C is bypassed, and the tape is brought into contact with the first crossbar 19B, whereby the engagement tape is formed and can be fixed. Adjustable length construction.

The configuration of the socket will be described with reference to Figs. 1 and 6 to 8 .

Fig. 6 is a plan view showing the socket of the above embodiment. Fig. 7 is a side view showing the socket of the above embodiment. Fig. 8 is a front elevational view of the socket of the above embodiment.

In FIG. 1 and FIG. 6 to FIG. 8 , the socket 20 is integrally molded by injection molding of a synthetic resin, and has a hollow cylindrical body 21 having an insertion opening 22 formed therein. The accommodating space 23 that can accommodate the leg portion 12 of the plug 10 inserted from the insertion port 22; the engaged portion 24 that is formed in the body 21 and that the engaging portion 14 can be engaged with; the operation of being formed at the center of the plane of the body 21 The opening 27; when the card is engaged with the plug, the opening portion 28 formed at a position corresponding to the engaging portion; and the strap attaching portion 29 through which the strap (not shown) can be inserted.

The engaged portion 24 is a wedge-shaped member having an inclined surface on the side of the insertion port 22 that is formed to be separated from the width direction of the inside of the accommodating space 23 . Each of the engaged portions 24 is formed inside the surface of the body 21 and protrudes in the accommodating space 23.

The thickness of the engaged portion 24 is smaller than the thickness of the accommodating space 23, and corresponds to the engaging portion 14 formed in the pair of leg portions 12.

An induction surface 25 for guiding and engaging the engagement portion 14 to the engaged portion 24 is formed inside the accommodating space 23.

The induction surface 25 is formed with a plurality of pair of groove portions 26 that are oriented from the end of the insertion port 22 toward the insertion direction. When the leg portion 12 and the holding portion 16 are inserted from the insertion port 22, the convex portion formed on the back side of the leg portion 12 (not shown) corresponds to the groove portion 26, and the distal end of the leg portion 12 is provided. The engaging portion 14 is induced to function as a guide to the engaged portion 24.

The configuration of the operation portion of the socket will be described with reference to Fig. 9 .

Fig. 9 is a cross-sectional view showing the operation portion of the socket of the above embodiment.

As shown in FIG. 9, in order to release the engagement of the engaging portion 14 and the engaged portion 24, an operation opening 27 is formed in the center of the plane of the main body 21. The operation opening 27 communicates with the internal accommodating space 23.

The operation opening 27 is formed at a position where the connection inclined portion 14D that connects the leg portion 12 inserted from the insertion port 22 is exposed.

The operation opening 27 is provided with an operation portion 27A that presses a flexible member that is elastic in the thickness direction. The operation portion 27A is provided at a position facing the leg portion 12, and is formed to be in contact with the connection inclined portion 14D due to elastic deformation. Further, the operation portion 27A is provided with a convex portion 27B that protrudes inward in the thickness direction where it is in contact with the connection inclined portion 14D, and a thick meat portion 27C positioned outside the thickness direction is provided at a position corresponding to the convex portion 27B. .

9 to 12, the tweezers that connect the plug and the socket; and the connected state and the tweezers that release the engagement between the connected plug and the socket will be described.

Fig. 10 is a cross-sectional view showing a state in which the plug and the socket of the embodiment are connected. Fig. 11 is a cross-sectional view showing a state in which the plug and the socket of the above embodiment are connected. Fig. 12 is an enlarged cross-sectional view showing a state in which the engaging portion is pushed out by bending of the operating portion of the embodiment.

As shown in FIG. 9 and FIG. 11, when the engaging portion 14 is induced to the induction surface 25 at the distal end of the leg portion 12 inserted from the insertion port 22, the pair of leg portions 1 are brought to the engaged portion 24. The pair of engaging portions 14 are elastically deformed, and are engaged with the engaged portion 24, respectively.

On the other hand, as shown in FIG. 10 and FIG. 12, the convex portion 27B presses and connects the inclined portion 14D, and elastically deforms the leg portion 12 in the thickness direction, and slides on the inclined surface of the connecting inclined surface 14C. Thereby, the engagement of the engaging portion 14 with the engaged portion 24 is released, and the plug 10 is pushed out toward the insertion port 22 side.

In the present embodiment as described above, the following effects can be obtained.

In the front release type buckle 1 of the present embodiment, the engaging portion 14 of the plug 10 does not protrude in the thickness direction but protrudes in the width direction, so that the thickness of the buckle does not become large, and can be reduced. Thickness size. Therefore, for example, when such a front release type buckle 1 having a small thickness is used in a rucksack or the like, since the thickness of the buckle is small, the mounting position is not limited. Moreover, since the thickness is small, the buckle is not too conspicuous and does not adversely affect the overall design of the rucksack or the like.

In the front release type buckle 1 of the present embodiment, the operation portion 27A is bent toward the engagement portion 14 side, and the convex portion 27B is pressed against the inclined surface 14C. At this time, since the convex portion 27B slides toward the engaging portion 14 side while sliding on the connecting inclined surface 14C, the engagement between the engaging portion 14 and the engaged portion 24 is released, and the insertion opening 22 to the socket 20 is released. The side was launched. Therefore, as long as the operation portion 27A is pressed, the plug 10 is separated from the socket 20 and pushed out. Thereby, the plug 10 and the socket 20 can be surely separated by pressing the operation portion 27A.

In the front release type buckle 1 of the present embodiment, since the angle of the connection inclined surface 14C is 15°, the convex portion 27B can smoothly slide away from the connection inclined surface 14C. Therefore, by pressing the operation portion 27A, the plug 10 can be separated from the socket 20 and smoothly pushed out. Thereby, the plug 10 and the socket 20 can be separated more reliably by pressing the operation portion 27A.

In the front release type buckle 1 of the present embodiment, since the pair of holding portions 16 for holding the plug 10 and the socket 20 are provided, the engagement between the engaging portion 14 and the engaged portion 24 can be surely performed. Further, for example, when the torsional stress is applied to the plug 10 and the socket 20, since the plug 10 and the socket 20 are not displaced, the engagement between the engaging portion 14 and the engaged portion 24 is not eliminated. It does function as a buckle.

In the front release type buckle 1 of the present embodiment, since the leg portion 12 protrudes from the base portion 11 toward the operation portion 27A side than the holding portion 16, the engagement portion 14 can be pressed with a slight bending when the operation portion 27A is pressed. Therefore, even if the thickness of the front release type buckle 1 is small, the separation and ejection of the plug 10 and the socket 20 can be performed by the operation portion 27A. Thereby, the thickness of the front release type buckle 1 can be made smaller.

[Modification]

Further, the present invention is not limited to the configuration of the above embodiment, and includes the following modifications.

In the above embodiment, the pair of leg portions 12 are not limited to the structure in which the connecting inclined portions 14D are coupled, and as shown in FIG. 13, an independent structure that is not connected may be used. Further, in such a case, it is preferable to press the inclined surface 14A by increasing the width of the convex portion 27B.

Further, the engaging portion 14 is not limited to a structure formed by protrusions extending outward from the distal end of the leg portion 12 in the width direction, and as shown in Fig. 14, a projection extending inward in the width direction may be formed, and the inclined portion 14B may be used. It is not provided in the front end side in the insertion direction but in the configuration on the opposite side.

Further, the engaging portion 14 does not need to be formed in an L shape, and as shown in FIG. 15, one engaging portion 14 may be formed.

Further, the leg portions 12 do not have to be formed as a pair, and may be composed of three leg portions 12 as shown in FIG.

[Industrial availability]

The present invention is a buckle that connects the belts to each other, and can be used as a front release type buckle having a pair of stop arms.

1. . . Front release buckle

10. . . plug

11. . . Base

12. . . Foot

14. . . Clamping department

14A. . . Inclined surface

14B. . . Inclined portion

16. . . Holding department

20. . . socket

twenty one. . . Ontology

twenty two. . . Insert

twenty three. . . Containing space

twenty four. . . Engaged part

27A. . . Operation department

27B. . . Convex

Fig. 1 is a plan view showing an overall configuration of an embodiment of the present invention.

Fig. 2 is a side view showing the overall configuration of the above embodiment.

Fig. 3 is a front elevational view showing the overall configuration of the above embodiment.

Fig. 4 is a plan view showing a plug of the above embodiment.

Fig. 5 is a side view showing the plug of the above embodiment.

Fig. 6 is a plan view showing a socket of the above embodiment.

Fig. 7 is a side view showing the socket of the above embodiment.

Fig. 8 is a front elevational view of the socket of the above embodiment.

Fig. 9 is a cross-sectional view showing an operation portion of the socket of the above embodiment.

Fig. 10 is a cross-sectional view showing a state in which the plug and the socket of the above embodiment are connected.

Fig. 11 is a cross-sectional view showing a state in which the plug and the socket of the above embodiment are connected.

Fig. 12 is an enlarged cross-sectional view showing a state in which the engaging portion is pushed out by bending of the operating portion of the embodiment.

Fig. 13 is a plan view showing a plug according to another embodiment of the present invention.

Fig. 14 is a plan view showing a plug according to another embodiment of the present invention.

Fig. 15 is a plan view showing a plug according to another embodiment of the present invention.

Fig. 16 is a plan view showing a plug according to another embodiment of the present invention.

1. . . Front release buckle

19E. . . Insertion direction rear end side

10. . . plug

19D. . . Insertion direction front side

12. . . Foot

20. . . socket

27C (27A). . . Engagement operation unit

14C. . . Linked slope

14A. . . Inclined surface

27B. . . Convex

29. . . Belt mounting

19B. . . First crossbar

11. . . Base

19C. . . Second crossbar

twenty two. . . Insert

twenty one. . . Ontology

16. . . Holding department

25. . . Induced surface

14D. . . Connecting the inclined portion

twenty three. . . Containing space

14B. . . Inclined portion

Claims (5)

A front release type buckle, comprising: a plug (10); and a socket (20) inserted into the plug (10) and engaged with the plug (10) having: a base portion (11); from the base portion (11) a raised leg portion (12); and an engaging portion (14) formed to extend in a width direction from a front end of the leg portion (12), the socket (20) having an insertion opening (22) a body (21); formed in the body (21), accommodating a receiving space (23) of the leg portion (12) inserted from the insertion port (22); formed in the body (21) and An engaged portion (24) that is separable in the width direction in the accommodating space (23) and engageable with the engaging portion (14); and the engaging portion (14) and the engaged portion In the operation unit (27A) for engaging and disengaging (24), the plug (10) and the socket (20) have a flat shape, and the leg portion (12) is flat and flexible in a thickness direction, and the engaging portion is (14) engaging with the engaged portion (24) in the thickness direction, the engaging portion (14) protruding in the width direction of the leg portion (12), and being provided in the thickness of the leg portion (12) Within the range The leg portion (12) is such that the portion of the surface of the leg portion (12) from the base portion (11) to the engaging portion (14) is more toward the insertion direction of the leg portion (12) toward the plug (10). The front side of the socket protrudes obliquely, and the aforementioned engaged portion (24) of the socket (20) is formed to be earlier than The operation unit (27A) is further outward in the width direction. The front release type buckle according to the first aspect of the invention, wherein the operation portion (27A) and the engagement portion (14) are in a state in which the plug (10) and the socket (20) are engaged with each other. The operation portion (27A) is disposed at a position opposed to the leg portion (12) in the thickness direction, has flexibility in the thickness direction, and has a convex portion inside the socket (20). (27B). The front release type buckle according to the first or second aspect of the invention, wherein the engaging portion (14) has an inclined portion provided with an inclined surface (14A, 14C) on the side of the operation portion (27A) ( 14B, 14D), the operation portion (27A) is bent toward the engagement portion (14) side, and the convex portion (27B) is pressed against the inclined surface (14A, 14C). The front release type buckle according to claim 3, wherein the angle of the inclined faces (14A, 14C) is 15 degrees. The front release type buckle according to the first or second aspect of the invention, wherein the pair of the plugs (10) protruding from the base portion (11) and the socket (20) are held and held. Department (16).