TW201404328A - Front-release buckle - Google Patents

Abstract

This front-release buckle (1) comprises: a plug (10); a socket (20) wherein this plug (10) is inserted and fitted; and a cover body (30) which is rotatably axially supported in the socket (20). The plug (10) further comprises a base part (11), and a latch portion (12) which protrudes from the base part (11). A latch part (101) is formed upon the latch portion (12). The socket (20) further comprises: a main body (21) provided with an insertion aperture (22); a housing space (24) which is formed within the main body (21) and wherein it is possible to house the latch portion (12) which is inserted via the insertion aperture (22); a tongue-shaped part (25) which is formed integrally with the main body (21) and which is elastically deformable. A latching part (201) is formed upon the tongue-shaped part (25), which is latchable with the latch part (101). An axle part (31) which axially supports the cover body (30) with respect to the socket (20) is formed upon one end part side of the cover body (30). On the other end side part which is on the opposite side of the cover body (30) from the axle part (31), a press protrusion is formed having a press part (32A) which presses and elastically deforms the tongue-shaped part (25).

Description

Front release buckle

The present invention relates to a front release buckle that releases the engagement by operating the front portion.

Conventionally, in various applications such as clothes, briefcases, shoes, and packaging materials, in order to connect the rope-like members such as belts, a buckle that detachably engages the plug and the socket is used.

In such a buckle, the handling for loading and unloading is required to be simple, and on the other hand, it is not accidentally dropped when accidentally. An article corresponding to such a requirement is a front release buckle that utilizes an attachment mechanism that releases the engagement by operating the front portion.

For example, Patent Document 1 discloses that the plug and the socket are engaged by engaging the engaging portion provided in the plug and the engaged portion of the tongue portion provided in the socket. When the engagement is released and the engagement is released, the elastic pressing piece provided in the socket is pressed and rotated, and the tongue portion is pressed and deformed by the pressing portion provided in the elastic pressing piece.

Further, according to the front-release buckle of Patent Document 1, a lock plate that can slide up and down on the elastic pressing piece is provided in the socket. This lock The tongue has a tongue which is not inadvertently pressed. By sliding the locking plate, the displacement of the elastic pressing piece is transmitted to the tongue, and the tongue can be pressed. .

However, in the front release buckle of Patent Document 1, when the engagement between the plug and the socket is released, the elastic pressing piece is pressed after the sliding of the locking plate, so that the operation becomes complicated and complicated. Therefore, the general mainstream is a non-locking mechanism that can release the engagement of the plug and the socket by an easy operation. The pre-release buckle of such a simple structure is as disclosed in Patent Document 2.

In the pre-release buckle of Patent Document 2, the socket includes a main body and a cover that is rotatably supported by the main body. A tongue portion that rises toward the mounting side of the lid body is provided on the bottom surface of the body so as to be elastically deformable. An end portion of the lid body is provided with an engaged portion that engages with the engaging portion of the plug, and a shaft portion that is axially supported by the body is formed at the center of the lid body, and the other end side of the lid body is associated with the tongue The apex of the shape abuts.

The lid body is rotatably attached to the main body with the shaft portion as a center of rotation, and in the mounted state, the tongue portion urges the other end side of the lid body from the back side. Therefore, when the engagement between the plug and the socket is released, only the other end side of the cover body can be pressed against the pushing force of the tongue portion, so that the cover body is rotated to cause the one end side of the cover body to float, so that the card of the plug is inserted. The joint is detached from the engaged portion of the cover.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Real Fair 7-46167

[Patent Document 2] US Patent No. 7874049

However, in the front-release buckle of Patent Document 2, the overall structure is simple, but since the shaft portion is provided at the center of the lid body, when the lid body is pressed, the vicinity of the shaft portion is often pressed, and the lid body cannot be pressed. Rotate effectively. Therefore, it is necessary to surely press the other end side of the falling from the center of the lid body, and the problem of poor operability is unexpectedly unexpected.

Moreover, by providing the engaged portion in the cover body, when the plug and the socket are engaged, when the belt is pulled in the direction in which the plug is pulled out, the tension acts on the shaft portion through the engaging portions of each other, and the shaft portion is present. Will damage the possibility that the cover will fall off.

Accordingly, an object of the present invention is to provide a front release type buckle which can easily operate the cover when the engagement between the plug and the socket is released, and can reliably prevent the shaft portion of the cover from being damaged.

A front release buckle according to the present invention includes: a plug, a socket into which the plug is inserted, and a cover that is rotatably supported by the socket; the plug has a base portion and an engaging piece projecting from the base portion, wherein the engaging piece is formed with an engaging portion, and the socket has a main body having an insertion opening, and is formed in the base The body can accommodate the accommodating space of the engaging piece inserted from the insertion opening, and a tongue-shaped portion integrally formed with the body and elastically deformable, and the tongue portion is formed with the engaging portion In the engaging portion, the shaft portion is formed on one end side of the plug in the plug insertion direction, and the shaft portion of the socket is formed on the other end side of the plug insertion direction of the lid body. A pressing protrusion of the pressing portion that is elastically deformed by the tongue.

According to the invention, in the lid body, since the pressing portion of the corresponding shaft portion and the pressing projection is largely separated from the one end side and the other end side, the wide area of the one end side of the shaft body except the lid body can be easily pressed. Can be rotated positively.

Further, the lid body has a function of rotating the tongue portion around the shaft portion and elastically deforming the tongue portion by the rotation, and the tongue portion has a function of engaging with the plug. Therefore, it is not necessary to have the rotation function and the engagement function at the same time, and the tension of the plug does not act on the shaft portion of the cover body even if it is pulled through the belt, thereby preventing the cover body from being damaged by the shaft portion. Fall off.

In the above-described pressing projection, the restricting portion that restricts the rotation of the lid body is formed to extend in a direction intersecting the extending direction of the pressing portion, and the body is formed with a facing surface in the thickness direction of the socket. It is preferable that the restricting portion is located between the pair of wall portions of the pair of wall portions forming the insertion port.

In the invention, the pressing protrusion is formed with a restricting portion that extends in a direction intersecting the extending direction of the pressing portion. Since the restricting portion is located between the pair of wall portions, the restricting portion is formed when the lid body is rotated. By using it The wall portion of either one abuts to limit the amount of rotation of the lid body, and the lid body can be prevented from coming off the socket.

In the present invention, an opening is formed in the center of the body, and the tongue portion is preferably provided in the opening.

In this invention, since the tongue portion is provided in the opening of the body, the thickness of the socket can be reduced, and the thickness can be reduced.

In the present invention, in the same plane as the tongue portion, the finger placement portion is preferably separated from the tongue portion and integrally formed with the body.

In this invention, in the socket, the finger placement portion is formed separately from the tongue portion, so that when the finger is placed on the finger placement portion, the finger does not reach the tongue portion, and when the lid body is pressed, only the The tongue is reliably elastically deformed, and the engagement of the plug and the socket can be surely released.

In the present invention, in the position of the engagement piece that surrounds the engagement portion, the auxiliary guide groove for guiding the engagement portion of the engagement portion toward the engaged portion is in the thickness direction of the engagement piece. Forming a predetermined depth, and in the position corresponding to the auxiliary guiding groove of the tongue portion, the auxiliary guiding protrusion for guiding the engaging portion of the engaging portion toward the engaged portion is facing the receiving space It is preferable to have a predetermined protruding height.

In this invention, the auxiliary guiding groove is formed in the plug, because the auxiliary guiding protrusion corresponding to the auxiliary guiding groove is formed in the socket, and the engaging portion is assisted by the auxiliary guiding groove and the auxiliary guiding protrusion. The guide to the engaged portion is not assisted by swimming. Thereby, the engaging portion can be smoothly engaged in being engaged unit.

In the present invention, in the body of the socket, a guiding groove for guiding the engaging piece toward the inside of the body is provided along an insertion direction of the plug, and insertion of the plug in the guiding groove The leading end side of the direction is a bearing groove in which the shaft portion of the cover body is fitted, and the main body is provided with a locking for locking the cover body along the guide groove. The department is better.

In the invention, since the locking portion is provided in the main body, the locking portion is locked to the lid body, and the shaft portion is fitted into the guide groove of the dual-purpose bearing portion, and the lid body can be restricted even if the lid body is positioned. Moving along the guiding groove prevents the cover from coming off the socket.

1‧‧‧Pre-release buckle

10‧‧‧ plug

11‧‧‧ base

12‧‧‧Clocks

12A‧‧‧Auxiliary guiding groove

20‧‧‧ socket

21‧‧‧ body

21A‧‧‧Upper wall

21B‧‧‧ Lower Wall

21D‧‧‧ openings

22‧‧‧Inlet

23‧‧‧ Guide groove

24‧‧‧ accommodating space

25‧‧‧ tongue

26‧‧‧ refers to the placement department

27‧‧‧Cards

30‧‧‧ cover

31‧‧‧Axis

32‧‧‧Repression protrusion

32A‧‧‧ Pressing Department

32B‧‧‧Restrictions

101‧‧‧Clock Department

201‧‧‧The Department of Engagement

202‧‧‧Auxiliary guiding protrusion

231‧‧‧ bearing groove

[Fig. 1]

A perspective view showing the entire configuration of an embodiment of the present invention from the front side.

[Fig. 2]

A perspective view of the plug of the foregoing embodiment is shown from the front side.

[Fig. 3]

A perspective view of the plug of the foregoing embodiment is shown from the back side.

[Fig. 4]

A perspective view of the socket of the foregoing embodiment is shown from the front side.

[Fig. 5]

A rear view of the socket of the foregoing embodiment is shown.

[Picture 6]

A perspective view of the lid body of the foregoing embodiment is shown from the back side.

[Picture 7]

A cross-sectional view showing the connected state of the plug and the socket of the foregoing embodiment is shown.

[Fig. 8]

A cross-sectional view showing a state in which the lid body of the foregoing embodiment is pressed.

[Fig. 9]

A cross-sectional view showing a state in which the engagement of the plug and the socket of the foregoing embodiment is released.

[Fig. 10]

A cross-sectional view showing a state in which the engagement between the plug and the socket of the above-described embodiment is released and the cover is returned to the original position.

Hereinafter, embodiments of the present invention will be described in accordance with the drawings.

An embodiment of the present invention is shown in Figs. 1 to 10.

The overall configuration of the front release buckle will be described based on Fig. 1.

Fig. 1 is a perspective view showing the entire configuration of an embodiment of the present invention from the front side.

As shown in Fig. 1, the front release buckle 1 of the present embodiment includes a plug 10, a socket 20 into which the plug 10 is inserted and engaged, and a cover that is rotatably supported by the socket 20 30.

The front release buckle 1 of the present embodiment is a rope-like member, for example, The end portion of the belt or the like is connected and separated, and the plug 10, the socket 20, and the lid body 30 are each formed by injection molding of a synthetic resin.

Further, the material of the plug 10, the socket 20, and the lid body 30 is not limited to a synthetic resin, and other materials such as metal may be used, and may not be limited to injection molding, and may be produced by another molding method such as casting or cutting.

The configuration of the plug will be described with reference to Figs. 2 and 3.

Fig. 2 is a perspective view showing the plug of the above embodiment from the front side. Fig. 3 is a perspective view showing the plug of the above embodiment from the back side.

In the second and third figures, the plug 10 is integrally molded, and has a base portion 11 held by a user, a pair of engaging pieces 12 inserted into the socket 20, and a belt inserted. Belt mounting portion 13.

The engagement piece 12 among these protrudes from the base portion 11 in the longitudinal direction (the insertion direction of the plug 10 of the socket 20, the vertical direction in the first to third figures) and is parallel to each other in the width direction of the base portion 11. (The direction in which the plug 10 of the socket 20 is inserted and the direction in which the thickness direction of the socket 20 vertically intersects, in the left-right direction in FIGS. 1 to 3) are arranged side by side at a predetermined interval W1. The predetermined interval W1 is formed to be slightly larger than the width W2 of the pressing protrusion 32 (described later).

As shown in FIG. 3, in each of the engagement pieces 12, the auxiliary guide groove 12A having a predetermined depth in the thickness direction of the engagement piece 12 is formed to surround the engagement portion 101 (described later). The auxiliary guiding groove 12A is a guide of the auxiliary engaging portion 101 toward the engaged portion 201 (described later) when the plug 10 is inserted into the socket 20.

In each of the engaging pieces 12, the engaging portion 101 is formed by bulging. The engaging portion 101 includes an inclined base portion 101A, a flat portion 101B continuous from the inclined base portion 101A in the longitudinal direction of the engaging piece 12 (the vertical direction in FIG. 3), and a card inclined at a predetermined angle with respect to the flat portion 101B. The inclined portion 101C is combined (refer to Figs. 7 to 10).

The engaging portion 101 is guided together with the auxiliary guiding groove 12A by an auxiliary guiding protrusion 202 (described later) formed inside the socket 20, and the insertion of the plug 10 to an appropriate position is assisted during the insertion operation.

As shown in Fig. 2, the belt attachment portion 13 has a belt attachment hole 13A in which the end portion of the belt is inserted at the center of the center, and a width toward the end of the base portion 11 at the end portion of the plug portion 10 is provided. In the first rod 13B extending in the direction, the second rod 13C is placed in the middle of the belt attachment hole 13A, and the belt attachment hole 13A is divided into the insertion direction distal end side 13D and the insertion direction rear end side 13E by the second rod 13C. 2

Thus, the belt (not shown) is inserted from the back side (the deep side of the paper surface in FIG. 2) of the plug 10 toward the front side (the front side of the paper surface in FIG. 2) toward the insertion direction front end side 13D, and then The front side of the plug 10 is inserted into the back side of the first rod 13B toward the rear side toward the insertion direction rear end side 13E. In this case, the leading end side of the belt is held between the first rod 13B and the base end side of the belt. Thereby, the belt can be engaged and fixed, and the length can be adjusted.

The configuration of the socket will be described with reference to Figs. 1, 4, and 5.

Figure 4 is a perspective view showing the socket of the foregoing embodiment from the front side. Figure. Fig. 5 is a rear elevational view showing the socket of the foregoing embodiment.

In the first, fourth, and fifth figures, the socket 20 is integrally formed as a whole, and has a hollow body 21 having an insertion opening 22 and a housing 21 that can be received from the insertion port. The accommodating space 24 of the engaging piece 12 of the inserted plug 10 (refer to FIGS. 7 to 10) and the tongue portion 25 which is elastically deformable to the main body 21 in such a manner as to be located in the opening 21D of the main body 21 And a finger placement portion 26 provided in the same plane as the tongue portion 25 in the center of the socket 20, and a belt attachment portion 28 in which a belt (not shown) is inserted and locked.

The main body 21 has a rod-shaped upper wall portion 21A and a lower wall portion 21B facing each other in the thickness direction of the socket 20 (see FIGS. 7 to 10). The lower wall portion 21B is in the longitudinal direction of the socket 20 (the vertical direction in FIG. 4), and is adjacent to the tongue portion 25, and faces the insertion port 22 of the lower wall portion 21B, and is inserted toward the plug 10. The direction is close to the inclined surface 21B1 of the upper wall portion 21A (refer to FIGS. 7 to 10).

On the inner circumference of the main body 21, a pair of guide recesses 21C for guiding the shaft portion 31 (described later) of the lid body 30 to face the width direction of the socket 20 are formed. Further, an opening 21D is formed in the center of the body 21.

In the inside of both sides of the main body 21 in the width direction (the horizontal direction in FIG. 4), one of the engaging pieces 12 for guiding the plug 10 in the insertion direction of the plug 10 (the vertical direction in FIG. 4) is formed. Pair the guiding groove 23.

The guide groove 23 is at a position on the tip end side in the insertion direction of the plug 10 to reach the corresponding guide recess 21C, and the extension portion of the guide recess 21C in the guide groove 23 is a shaft portion 31 that also covers the cover 30. Chimeric bearing groove 231.

A pair of locking portions 27 projecting in the thickness direction of the socket 20 (direction perpendicular to the plane of the paper in FIG. 4) are provided at the position on the belt mounting portion 28 side of the main body 21.

The locking portion 27 is formed in a substantially square shape in which a circular arc is formed in a corner portion in plan view, and is provided so as to protrude in the thickness direction of the socket 20 and to be engaged with the step portion 30A (described later) of the lid body 30.

The tongue portion 25 is provided in the opening 21D of the body 21 in the cantilever state so as to be elastically deformable in the thickness direction of the socket 20.

The tongue portion 25 has a pair of engaged pieces 25A extending in the longitudinal direction of the main body 21 (the vertical direction in FIG. 4) and parallel to each other, and a connecting portion 25B that connects the respective engaged pieces 25A. The base end portion 251 of the engaged piece 25A is made thin, and the engaged piece 25A is easily elastically deformed with respect to the body 21.

The engaged portion 201 of the plug 10 is formed with the engaged portion 201 into which the engaging portion 101 of the plug 10 can be engaged. The engaged portion 201 protrudes from the engaged piece 25A toward the accommodating space 24, and has a predetermined protruding height. The protruding height of the engaged portion 201 is the engaging portion 101 of the plug 10. The engaged surface 201A is formed in the engaged portion 201, and the engaging surface 201A is engaged therewith, and the engaging portion 101 is engaged with the engaged portion 201.

On the engaged piece 25A, a pair of auxiliary guiding protrusions 202 extending in parallel in the insertion direction of the plug 10 are provided on both sides of the engaged portion 201.

The auxiliary guiding protrusion 202 is oriented toward the same as the engaged portion 201. The volume 24 is protruded, and the engaged portion 201 and the auxiliary guiding protrusion 202 are continuously formed in a substantially H shape. The auxiliary guiding protrusion 202 corresponds to the auxiliary guiding groove 12A on the plug 10 side when the engaging piece 12 of the plug 10 is inserted from the insertion opening 22, and assists in guiding the engaging portion 101 toward the engaged portion 201.

As shown in Fig. 5, the finger placement portion 26 is formed to be separated from the tongue portion 25 in the opening 21D, and is configured such that the finger does not reach the tongue portion 25 when the finger is placed on the finger placement portion 26.

The configuration of the lid body will be described with reference to Figs. 1 and 6 .

Fig. 6 is a perspective view showing the lid body of the above embodiment from the back side.

In the first and sixth figures, the lid body 30 has a rectangular shape as a whole, and has a pair of shaft portions 31 which are formed by one end side toward the both sides in the width direction, and the opposite side of the shaft portion 31. The other end side is protruded toward the tongue portion 25 to form a pressing protrusion 32.

When the lid body 30 is pressed, the pressing portion 32 has a pressing portion 32A that abuts on the connecting portion 25B of the tongue portion 25 to elastically deform the tongue portion 25, and a direction that intersects the extending direction of the pressing portion 32A. The extended restriction portion 32B.

The cover body 30 is guided by the guide recess 21C formed in the main body 21 toward the shaft portion 31 and fitted to the bearing groove 231, and is rotatably supported by the socket 20. At this time, the tip end of the locking portion 27 of the main body 21 is locked with the step portion 30A of the lid body 30, thereby restricting the movement of the lid body 30 along the guide groove 23.

And by inserting the pressing protrusion 32 of the corresponding cover 30 The mouth 22 is pressed, and the lid body 30 is rotated so that the shaft portion 31 as a center of rotation sinks in the thickness direction of the socket 20.

When the lid body 30 is rotatably supported by the socket 20, the restricting portion 32B is positioned between the upper wall portion 21A and the lower wall portion 21B, and when the lid body 30 is rotated, the upper wall portion 21A and the lower wall portion are rotated. 21B abuts to limit the amount of rotation of the cover 30. Specifically, when the pressing protrusion 32 side of the lid body 30 is pressed, the regulating portion 32B abuts against the inclined surface 21B1 of the lower wall portion 21B. When the pressing force is released to the lid body 30, when the external force is applied to the socket 20 to rotate the lid body 30 in the direction away from the tongue portion 25, the regulating portion 32B abuts against the upper wall portion 21A. .

The state in which the plug and the socket are connected and the manner in which the connected plug and the socket are released are explained in accordance with FIGS. 7 to 10 .

Fig. 7 is a cross-sectional view showing a state in which the plug and the socket of the above embodiment are connected. Fig. 8 is a cross-sectional view showing a state in which the lid body of the above embodiment is pressed. Fig. 9 is a cross-sectional view showing a state in which the engagement of the plug and the socket of the above embodiment is released. Fig. 10 is a cross-sectional view showing a state in which the engagement between the plug and the socket of the above embodiment is released and the cover is returned to the original position.

As shown in FIG. 7, when the plug 10 is inserted into the socket 20 from the insertion opening 22, the engaging piece 12 is guided into the accommodating space 24 by the guiding groove 23, by the auxiliary guiding groove 12A and the auxiliary guide. The lead portion 202 assists the guiding of the engaging portion 101 toward the engaged portion 201. When the engaging portion 101 reaches the engaged portion 201, the engaging portion 101 is elastically deformed by the tongue portion 25, and is engaged with the engaging portion 101 of the engaged portion 201. at this time, The pressing protrusion 32 passes through the space W1 formed between the pair of engaging pieces 12 without impeding the movement in the insertion direction of the engaging piece 12.

In the state of Fig. 7, when the lid body 30 is pressed, the lid body 30 is rotated counterclockwise in the eighth figure with the shaft portion 31 as the center of rotation, and the pressing portion 32A is brought into contact with the connecting portion 25B of the tongue portion 25. Then, the entire projection portion 25 is elastically deformed in the downward direction of the eighth drawing by the pressing projection 32. In this case, the engaged portion 201 also moves downward in the eighth diagram, and the engagement between the engaging portion 101 and the engaged portion 201 is released. At this time, the regulating portion 32B abuts against the inclined surface 21B1 of the lower wall portion 21B, and restricts the predetermined amount of rotation of the lid body 30.

Thereafter, when the plug 10 is pulled out in the detaching direction (the left direction in Fig. 8), as shown in Fig. 9, the plug 10 is detached from the socket 20.

After the plug 10 is detached from the socket 20, the pressing of the cover 30 is released. In this case, the tongue portion 25 is returned in the upward direction of FIG. 9, and as shown in FIG. 10, the lid body 30 is rotated in the clockwise direction toward the original position which is the same as the position of the seventh figure. return.

In the present embodiment, the following effects can be obtained.

In the front release buckle 1 of the present embodiment, the pressing portion of the shaft portion 31 and the pressing projection 32 in the corresponding cover 30 is separated from the one end side and the other end side, so that the plug 10 is detached from the socket 20. At this time, the lid body 30 can be easily and surely rotated by pressing the wide field operation except for the one end side of the lid body 30.

And for the rotation function generated by the user's operation and Since the engagement function of the plug 10 is completely separated between the lid body 30 and the tongue portion 25, it is different from the conventional function of the rotation function and the engagement function at the same time as the lid body 30, and even if the plug 10 is pulled through the belt, The tension does not act on the shaft portion 31 of the lid body 30, and the peeling of the lid body 30 caused by the breakage of the shaft portion 31 can be prevented.

In the pressing protrusion 32 of the lid body 30, a restricting portion 32B extending in a direction crossing the extending direction of the pressing portion 32A is formed, and since the restricting portion 32B is located between the upper wall portion 21A and the lower wall portion 21B, When the pressing portion 32 of the lid body 30 is pressed against the insertion port 22 side of the lid body 30, the regulating portion 32B abuts against the lower wall portion 21B to restrict the amount of rotation of the lid body 30.

In a state where the pressing to the lid body 30 is released, even if an external force is applied to the socket 20 to rotate the lid body 30 away from the tongue portion 25, the regulating portion 32B abuts against the upper wall portion 21A to restrict the lid body 30. The amount of rotation.

Thereby, the lid body 30 can be prevented from coming off the socket 20.

In the socket 20, an opening 21D is formed in the center of the body 21. Since the tongue portion 25 is provided in the opening 21D, the thickness of the socket 20 can be reduced, and the thickness of the socket 20 can be reduced.

Further, in the socket 20, since the finger placement portion 26 is formed separately from the tongue portion 25, when the finger is placed on the finger placement portion 26, the finger does not reach the tongue portion 25. When the lid body 30 is pressed, only the The tongue portion 25 is elastically deformed reliably, and the engagement between the plug 10 and the socket 20 can be surely released.

Since the auxiliary guiding groove 12A is formed in the plug 10, and the auxiliary guiding protrusion 202 corresponding to the auxiliary guiding groove 12A is formed in the socket 20, the auxiliary guiding groove 12A and the auxiliary guiding protrusion 202 can be provided. The guidance of the engaging portion 101 toward the engaged portion 201 is not assisted by the swimming. Thereby, the engaging portion 101 can be smoothly engaged with the engaged portion 201.

At this time, since the auxiliary guiding protrusions 202 are continuously formed from the both sides of the engaged portion 201 in a direction perpendicular to the extending direction of the engaged portion 201, the auxiliary guiding protrusions 202 can be used. It is reinforced by the engaging portion 201.

In the body 21 of the socket 20, since the locking portion 27 that is locked with the lid body 30 is provided, the lid body 30 can be restricted from moving along the guiding groove 23 even if it is axially supported in the guiding groove 23. The cover 30 can be prevented from coming off the socket 20.

Further, by the combination of the locking portions 27, the shaft support of the lid body 30 can be carried out in the guide groove 23, and by opening the guide groove 23 toward the insertion port 22 side of the socket 20, it becomes unnecessary. For example, a complicated mold in which the hole shape of the shaft portion 31 is fitted is formed on the inner surface of the socket 20, the design of the mold is easy, and the cost can be reduced.

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

In the above-described embodiment, the engaging portion 101 is not limited to being provided in a pair, and the engaged portion 201 is not limited to being provided in a pair, and one engaging portion 101 is provided in the single engaging piece 12, and is The engaging portion 201 is also provided with one The composition can also be. In this case, in the lid body 30, a pair of plural pressing protrusions 32 may be provided so as to press both sides of the engaged portion 201 in the width direction. In addition, each of the engaging portion 101, the engaged portion 201, and the pressing protrusion 32 may be provided in an appropriate number, and may be three or more.

Further, in the above-described embodiment, when the pair of pressing protrusions 32 are provided and the pressing protrusions 32 are provided so as to press the vicinity of each of the engaged portions 201, the tongue portion 25 does not have the connecting portion 25B. can. In this case, the placement portion 26 may be an insertion port 22 that extends to the body 21.

Further, the positions of the shaft portion 31 and the pressing projection 32 in the lid body 30 may be opposite to those of the above embodiment.

The locking portion 27 is not limited to a configuration that protrudes from the socket 20 and abuts against the step portion 30A of the lid body 30. The locking portion 27 may protrude from the lid body 30 and may abut against a step portion formed in the socket 20.

[Industrial availability]

The present invention is a front release buckle that can be used for a buckle that connects belts to each other and that is released from the front side of the buckle.

10‧‧‧ plug

11‧‧‧ base

12‧‧‧Clocks

20‧‧‧ socket

21‧‧‧ body

21A‧‧‧Upper wall

21B‧‧‧ Lower Wall

21B1‧‧‧ sloped surface

22‧‧‧Inlet

23‧‧‧ Guide groove

24‧‧‧ accommodating space

25‧‧‧ tongue

25A‧‧‧Snaped

27‧‧‧Cards

28‧‧‧Belt Installation Department

30‧‧‧ cover

31‧‧‧Axis

32A‧‧‧ Pressing Department

32B‧‧‧Restrictions

101‧‧‧Clock Department

101C‧‧‧Clamping inclined part

201‧‧‧The Department of Engagement

Claims (6)

A front release buckle, comprising: a plug (10), a socket (20) for inserting the plug (10) into the card, and a cover rotatably supported by the socket (20) In the body (30), the plug (10) has a base portion (11) and an engaging piece (12) protruding from the base portion (11), and an engaging portion (101) is formed in the engaging piece (12). The socket (20) has a main body (21) having an insertion opening (22), and the engaging piece (12) inserted into the main body (21) and inserted from the insertion opening (22). a receiving space (24) and a tongue portion (25) integrally formed with the body (21) and elastically deformable, and the engaging portion (101) is formed on the tongue portion (25) In the engaged portion (201), the lid body (30) is a shaft portion (31) having a shaft support for the socket (20) on one end side of the lid body (30) in the plug insertion direction. A pressing protrusion (32) having a pressing portion (32A) that elastically deforms the tongue portion (25) is formed on the other end side of the lid body (30) in the plug insertion direction. The release buckle according to the first aspect of the invention, wherein the restricting portion (32B) for restricting the rotation of the cover (30) is extended toward the pressing portion (32A) in the pressing protrusion (32). The direction in which the directions intersect is extended. In the body (21), a pair of wall portions (21A, 21B) facing the insertion opening (22) are formed in the thickness direction of the socket (20), and the restricting portion (the restricting portion) 32B) is located in the pair of wall portions (21A, 21B) between. The front release buckle according to claim 2, wherein an opening (21D) is formed in a center of the body (21), and the tongue (25) is provided in the opening (21D). The prior release buckle according to any one of claims 1 to 3, wherein, in the same plane as the aforementioned tongue (25), the finger placement portion (26) is the aforementioned tongue portion (25) Separately formed integrally with the body (21). The prior release buckle according to any one of claims 1 to 3, wherein the engaging portion is assisted in a position surrounding the engaging portion (101) of the engaging piece (12) The auxiliary guide groove (12A) for guiding the engagement portion (201) of (101) is formed to have a predetermined depth in the thickness direction of the engagement piece (12), and is formed in the tongue portion (25). At a position corresponding to the auxiliary guiding groove (12A), the auxiliary guiding protrusion (202) for guiding the guiding portion (101) of the engaging portion (101) toward the engaged portion (201) faces the receiving space (24) formed with a predetermined protruding height. The front release buckle according to any one of claims 1 to 3, wherein the engaging piece (12) faces the inside of the body (21) in the body (21) of the socket (20) The guiding guide groove (23) is disposed along the insertion direction of the plug (10), and the apex of the insertion direction of the plug (10) in the guiding groove (23) The side is a bearing groove (231) that is also fitted to the shaft portion (31) of the cover body (30), and the body (21) is provided with the cover body (30) to be locked and the cover body is restrained ( 30) A locking portion (27) for moving along the aforementioned guiding groove (23).