TWI580371B - Buckle - Google Patents

Description

buckle

The present invention relates to a buckle that connects the straps to each other, for example, a side release buckle having a pair of locking arms on both sides.

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

Such a buckle is simple for handling, and on the other hand, it is required to be accidentally dropped without intention, and sufficient attention is paid to the snap structure.

As such a buckle, it is conventionally a side release buckle that is released by gripping the both sides of the socket, and thus the side release buckle uses a pair of feet on both sides (locking arm) Come as a snap structure.

For example, the side release type buckle described in Patent Document 1 includes a plug and a socket into which the plug is inserted and engaged.

The plug has a base portion and a guide bar that is formed by projecting from the base portion and elastically deformable in a direction intersecting with respect to the insertion direction of the plug, and a Y-shaped guide rod formed between the leg portions. An engaging portion is formed to protrude from the front end of the foot.

On the other hand, the socket has a body in which an insertion port is formed. The front wall side (the side opposite to the insertion opening side) from the insertion opening side toward the insertion direction is provided with a cutout portion which is largely cut from the insertion opening side toward the insertion direction, and is provided on the body Inside, an engaged portion that engages with the engaging portion of the plug is provided.

In the side release type buckle described in Patent Document 1, when the plug is inserted into the socket from the insertion port, the guide rod of the plug is guided by the notch portion, and the leg portion enters into the body of the socket, and By engaging the engaged portion with the engaged portion, the plug and the socket can be surely held in the engaged state.

In the same manner as the buckle of Patent Document 1, the side release type buckle disclosed in Patent Document 2 includes a plug and a socket into which the plug is inserted and engaged.

However, in the plug, a substantially linear guide rod is provided instead of the Y-shaped guide rod, and on the socket side, two insertion guide rods are guided in the insertion direction along the insertion direction of the plug. Strip guides.

The guide ribs are arranged such that the guide rod interferes with the guide rod and the guide rod cannot enter the inside due to the manner of connecting the wall between the front wall and the back wall of the socket, so that the guide wall or the back wall is One of the wall projections is provided, and a portion of the inner side of the guide rod that is not in contact with the guide rod is provided so as to be connected to the back wall of the watch.

In the side release type buckle described in Patent Document 2, when the plug is inserted into the socket from the insertion port, the guide rod of the plug is guided by the guide protrusion of the main body, and the leg portion enters the socket. The inside of the body is engaged with the engaged portion by the engaging portion, so that the plug and the socket can be surely held in the engaged state.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Invention Patent No. 4203346

Patent Document 2: Japanese Invention Patent No. 4148836

However, according to the side release type buckle described in Patent Document 1, the surface wall and the back wall of the main body of the socket are formed with a slit which is largely cut due to the weight reduction of the buckle and the easy insertion and removal of the plug. Therefore, it is difficult to sufficiently ensure the rigidity of the back wall of the watch, and when the plug and the socket are engaged, if the plug and the socket are pulled apart from each other, the socket will bulge toward the thickness thereof, and there will be a card. The possibility that the joint will fall off from the engaged portion. In particular, due to the material of the buckle, there is a possibility that the socket will be greatly deformed like a bulge.

Therefore, the side release type buckle as described in Patent Document 2 is provided, and the front and back of the socket are connected by the protrusion, whereby when the plug and the socket are pulled apart from each other, it should be Prevent the socket from bulging toward its thickness.

However, since the bulging is not sufficiently prevented by the installation position of the ridges, or the engagement and detachment operation of the engagement portion with respect to the engaged portion is hindered, it is desirable to solve the problem.

Accordingly, an object of the present invention is to provide a buckle that prevents the socket from bulging in the thickness direction thereof and prevents the engagement portion from being engaged with the engaged portion and the plug from being detached from the socket.

The buckle of the present invention is characterized in that: a plug is provided, and the plug is provided The head is inserted into the engaged socket, and the plug has a base portion, and a leg portion which is formed to protrude from the base portion and is elastically deformable in a direction intersecting with the insertion direction of the plug, and is formed by protruding the foot portion An engaging portion having an insertion opening and having a front wall and a back wall, and having at least one of the front wall and the back wall cut away from the insertion opening in the insertion direction a body of the notched portion, and an accommodating space for accommodating the leg portion inserted from the insertion port and an engaged portion at which the engaging portion is engageable, and the accommodating space is provided in the accommodating space The connecting portion between the front wall and the back wall is coupled, and the distance between the connecting portion and the engaged portion in the width direction of the socket is larger than the width of the engaging portion.

In the above invention, since the connecting portion connecting the front wall and the rear wall is provided in the accommodating space, the distance between the connecting portion and the engaged portion in the width direction of the socket is larger than the width of the engaging portion. It is larger, and the connecting portion does not hinder the engagement of the engaging portion and the engaged portion as close as possible to the engaged portion, so that when the plug and the socket are combined, even if the plug and the socket are separated from each other Pulling, the socket does not bulge in the thickness direction thereof, and the engaging portion can be prevented from coming off the engaging portion toward the thickness direction of the socket, and the engaging portion and the engaged portion can be detached and the plug can be detached from the socket. Happening. Further, since the distance between the engaged portion and the connecting portion is larger than the width of the engaging portion, the engagement of the engaging portion with the engaged portion can be prevented from being hindered from being blocked by the connecting portion.

In the present invention, the connecting portion extends in the insertion direction of the plug, and the insertion port side end portion of the connecting portion is disposed in a ratio It is preferable that the engaged portion is closer to the position of the insertion port.

In the above invention, since the joint portion extends beyond the position of the engaged portion to which the pulling force is applied, the swelling of the socket in the thickness direction can be surely prevented, and the engaging portion and the jammed portion can be more reliably prevented. The engagement of the joint is broken and the plug is released from the socket.

In the present invention, the connecting portion extends in the insertion direction of the plug, and the insertion port side end portion of the connecting portion is disposed closer to a side opposite to the insertion port of the cutout portion. The position of the above insertion port is ideal.

In the socket, when either one of the front wall and the back wall of the main body has a notch portion, the rigidity of the front or back wall in which the notched portion is formed is lowered, and the socket is easily deformed in the thickness direction thereof. On the other hand, in the configuration of the invention, since the insertion port side end portion is disposed closer to the insertion port than the edge of the notch portion opposite to the insertion port, the connection table around the notch portion is provided. The construction of the wall and the back wall is stronger and more reliably prevents the socket from bulging in the thickness direction.

In the above aspect of the invention, the main body has a wall that is disposed on a front side of the insertion direction of the plug, that is, a rear side of the insertion opening in the insertion direction, and extends in a width direction of the main body, and the connecting portion is It is preferable to be connected to the above rear wall.

In the above invention, since the connecting portion extending in the insertion direction is connected to the wall extending in the direction in which the socket is widened, that is, in the direction intersecting the insertion direction, the connecting portion and the rear wall are formed along the table. A connecting structure of an L-shaped cross section of the wall and the back wall extending in two directions. By this, due to the link table The structure of the wall and the back wall is stronger, so that the rigidity around the engaged portion of the socket can be further improved, and the bulging of the socket in the thickness direction can be more surely prevented.

In the present invention, it is preferable that the connecting portion is provided with a pair of the sockets in the center in the width direction.

In the above invention, since the pair of connecting portions are provided and the connecting portions are provided with the center of the socket interposed therebetween in the wide direction, when the plug and the socket are pulled apart from each other, The pair of connecting portions can be similarly reinforced by the center of the socket in the wide direction, and the bulging of the socket in the thickness direction can be surely prevented.

[Embodiment of the Invention]

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

(First embodiment)

The first embodiment of the present invention is shown in Figs. 1 to 5 .

The overall structure of the side release buckle will be described with reference to Figs. 1 and 2 .

Fig. 1 is a perspective view showing the entire configuration of a first embodiment of the present invention. Fig. 2 is a plan view showing the entire configuration of the first embodiment.

In Fig. 1 and Fig. 2, the side release buckle 1 of the present embodiment is used for joining. Separating a string member, such as a belt, etc., and having There are: a plug 10 formed by injection molding of a synthetic resin such as nylon, and a socket 20 into which the plug 10 is inserted.

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 casting.

Further, in the following description, the direction in which the plug 10 is inserted into the socket 20 is the insertion direction, and in the present embodiment, the longitudinal direction of the socket 20 is the insertion direction of the plug 10. The thickness direction and the width direction of the socket 20 respectively intersect the insertion direction, and the thickness direction and the width direction also cross each other.

The structure of the plug will be described with reference to Figs. 1 and 2 .

In the first and second figures, the plug 10 is integrally formed integrally, and has a base portion 11 and two sides from the wide direction of the base portion 11 (the same as the width direction of the plug 10) to the plug 10. The insertion direction linearly protrudes to form one pair of leg portions 12, a guide rod 13 formed between the pair of leg portions 12 and extending in the insertion direction of the plug 10, and a belt loading portion through which the straps and the like can be inserted. 14.

The leg portion 12 has an elastic piece portion 121 that is elastically deformable toward or away from each other in the wide direction, and an operation portion 122 that is extended from the front end of the elastic piece portion 121 toward the insertion direction of the plug 10.

The operation portion 122 has a through hole penetrating in the thickness direction of the plug 10, and the outer surface (the surface opposite to the surface on which the leg portions 12 face each other) faces the front end (the side portions of the leg portions 12 are opposite to each other) That is, it is formed by inclining the direction in which the respective leg portions 12 approach.

At the front end of each leg portion 12, an engaging portion 101 that protrudes in the thickness direction of the plug 10 is formed, and the engaging portion 101 has a predetermined wide size W1.

The guide rod 13 has an overall shape formed in a substantially Y shape, and is provided to protrude from both sides in the width direction of the base portion 11 toward the longitudinal direction, and to approach each other in a direction toward the insertion direction of the plug 10. The bridge 131 and the guide head 132 extending from the end of the bridge 131 toward the insertion direction of the plug 10 and having a predetermined length are provided.

The tape mounting portion 14 is formed by the intermediate portion of the base portion 11 in the width direction. The tape mounting portion 14 has a tape mounting hole 14A at the center of the plug 10 at the center of the plug 10, and is provided with a wide width at the end of the plug 10 and at the end of the base portion 11. The first rod 14B extending in the direction is provided with the second rod 14C in the insertion direction side of the plug 10 from the first rod 14B, and the belt mounting hole 14A is divided into the plug by the second rod 14C. The insertion end side (front end side) of the inserting direction side (front end side) 10 and the two end portions of the end mounting hole 14E on the side opposite to the insertion direction of the plug 10 (rear end side).

Thereby, a tape (not shown) is inserted into the front end mounting hole 14D from the back side of the plug 10 (the back side of the paper in FIG. 1) toward the front side (the front side of the paper in the first drawing), and secondly, the plug is inserted. The front side of the 10 is inserted into the rear end mounting hole 14E toward the back side, and is taken to the back side of the first rod 14B. In this way, the front end of the strap is clamped between the base end side and the first rod 14B. As a result, the belt can be engaged and fixed, and the length can be adjusted.

The structure of the socket will be described based on Figs. 1 to 4 .

Fig. 3 is a cross-sectional view showing the socket of the first embodiment. Figure 4 is a cross-sectional view taken along line IV-IV in Figure 3.

In each of FIGS. 1 to 4, the socket 20 is integrally formed integrally, and has a body 21 having an insertion opening 22 into which one of the plugs 10 can be inserted into the leg portion 12 at one end thereof, and The accommodating space 23 which is formed in the main body 21 and can accommodate the leg portion 12 inserted from the insertion port 22, and the accommodating portion 26 which is formed at the other end of the main body 21 and can be inserted and locked by a tape (not shown) .

Further, the socket 20 is formed by guiding the engaging portion 101 of the plug 10 from the insertion opening 22 toward the inside of the main body 21, and elastically deforming the front end portions of the pair of leg portions 12 toward each other. The lead portion 28 and the pair of front and back of the connecting body 21 are connected to the connecting portions 31A and 31B.

The main body 21 has a front and back wall 21A and a back wall 21B, and a pair of side walls 21C that are connected to the side of the socket 20 and a front side that is disposed in the insertion direction of the plug 10, that is, the insertion port 22 The rear wall 21D is extended toward the rear side of the insertion direction in the width direction of the socket 20, and the flat wall having the accommodating space 23 is formed by joining the front wall 21A, the back wall 21B, the side wall 21C, and the rear wall 21D. shape.

Each of the front wall 21A and the back wall 21B is provided with a notch portion 21E, 21F having a substantially Y-shape which is cut from the insertion port 22 side toward the insertion direction. The notch portions 21E and 21F are guide lines 24 that are expanded toward the insertion port 22 in correspondence with the bridge 131 provided on the guide rod 13 of the plug 10, and an axis line corresponding to the guide head 132. 25 formed.

Further, the notched portions 21E and 21F may be provided only on one of the front wall 21A or the back wall 21B.

The side wall 21C is an intermediate portion of the longitudinal direction of the main body 21 (the longitudinal direction of the socket 20 and the insertion direction of the plug 10), and is tapered toward the inner portion of the main body 21, and is formed in the intermediate tapered portion to communicate with the accommodating space. 23 opening portion 27. In the state in which the plug 10 is inserted into the socket 20 from the opening portion 27, the operation portion 122 provided in the leg portion 12 of the plug 10 is exposed, and the operation portion 122 can be pressed toward the inside. By pressing the exposed operation portion 122 toward the inside of the opening portion 27, the pair of leg portions 12 are elastically deformed in close proximity to each other, and the engagement portion 101 is detached from the engaged portion 32 (described later) to release each other. It is engaged and the plug 10 can be detached from the socket 20.

The rear wall 21D is formed with a hole portion 30 that communicates with the accommodating space 23 and the outside of the socket 20 in the center of the wide direction, and the moisture can be discharged to the outside when water is accumulated in the accommodating space 23.

Inside the main body 21, the engaging portions 32 are opposed to each other at a position on both sides of the main body 21 in the width direction. The engaged portions 32 are predetermined in each of the end faces of the front wall 21A and the back wall 21B (the face wall 21A and the back wall 21B face each other) in the respective ends in the wide direction. The height is formed.

In the pair of facing portions 32 facing each other in the width direction, the opposing portions facing each other form a guiding portion 28 that elastically deforms the leg portion 12 by the abutting portion 101 of the plug 10 abutting, and The foot portion 12 is inclined to be deformed toward the center side of the accommodating space 23 as the plug 10 is inserted.

Adjacent to the engaged portion 32, a recess 29 is formed in the body 21.

As shown in Fig. 3, the recessed portion 29 is formed on the inner surface of the front wall 21A and the back wall 21B of the main body 21, and is cut from the inner side of the engaged portion 32 toward the side wall 21C in the width direction of the socket 20. The recessed portion is formed and recessed, and by forming the recessed portion 29, the engaged surface 321 in which the engaging portion 101 is engaged is formed in the engaged portion 32.

The engaged surface 321 is a surface that is along the width direction of the body 21 and the thickness direction of the body 21, and is a surface that intersects the insertion direction. Further, the engaged portion 32 is continuous with the front end of the guide portion 28, and reaches the guide portion 28 at the engaging portion 101 of the leg portion 12 which is deformed toward the center side of the accommodating space 23 by the guide portion 28. When the front end is guided away from the guide, the engaging portion 101 is engaged with the engaged surface 321 , whereby the engaged state of the plug 10 and the socket 20 can be maintained.

Further, in the main body 21 of the present embodiment, the connecting portions 31A and 31B are provided in the vicinity of the engaged portion 32.

As shown in Fig. 4 and Fig. 1, the connecting portions 31A and 31B are disposed in the accommodating space 23, respectively, in the insertion direction (the downward direction in the third drawing) and the thickness direction of the socket 20 (the lower direction in Fig. 4). The plate-like portion that extends is provided so as to connect the front wall 21A and the back wall 21B, and prevents the front wall 21A and the back wall 21B from being deformed like a bulge.

As shown in FIGS. 5 and 3, the connecting portions 31A and 31B are directed from the corner portion of the inner side of the engaged portion 32 (the corner portion formed by the guiding portion 28 and the engaged surface 321) toward the socket 20. The center axis A side is provided only by isolating the predetermined distance W2. Further, the connecting portions 31A and 31B are directed toward the rear wall 21D. One end of the connecting portions 31A, 31B (the end opposite to the insertion opening 22) is connected to the rear wall 21D, and is formed integrally with the rear wall 21D along the direction parallel to the insertion direction of the plug 10. The connection structure of the L-shaped cross section of the front wall 21A and the back wall 21B extending in two directions.

Since the distance W2 is slightly larger than the width dimension W1 of the engaging portion 101, the coupling portions 31A and 31B are not blocked in the engagement with the engaging portion 101 of the engaged portion 32. , to the maximum close to the engaged portion 32.

Further, the end portions of the connecting portions 31A and 31B on the insertion port 22 side are disposed closer to the insertion port 22 than the engaged portion 32, and are disposed in the insertion portions 21E and 21F. The edge 211 on the opposite side of the port 22 is closer to the position of the insertion port 22.

According to Fig. 5, the case where the plug and the socket are combined will be described.

Fig. 5 is a view showing a state in which the plug and the socket of the first embodiment are joined.

When one of the plugs 10 is inserted into the insertion opening 22 of the socket 20, the plug 10 is inserted into the inside of the socket 20 while guiding the guide rod 13 to the cutout portions 21E and 21F, and a pair of feet The engaging portion 101 of the front end 12 abuts against the guiding portion 28 of the socket 20, and the leg portions 12 are elastically deformed in the direction in which they approach each other.

When the plug 10 is continuously inserted into the socket 20, the guide rod 13 is housed in the notch portions 21E and 21F to close the insertion port 22.

At this time, the engaging portion 101 passes between the engaged portion 32 and the connecting portion 31A, 31B beyond the engaged portion 32, and after crossing, such as As shown in FIG. 5, the leg portion 12 is restored and displaced in the direction away from each other, and is engaged with the engaged surface 321 of the engaged portion 32. That is, the plug 10 is coupled to the socket 20.

Further, in a state in which the plug 10 and the socket 20 are coupled, the plug 10 is detached from the socket 20, and the outer surface of the operation portion 122 of the leg portion 12 that protrudes from the opening portion 27 of the socket 20 is pressed inward. As a result, the leg portion 12 of the plug 10 is elastically deformed toward the inner side, and the engaging portion 101 is detached from the engaged portion 32 and is located between the opening 29 and the connecting portions 31A and 31B. In this state, when the plug 10 is pulled out of the socket 20, the plug 10 can be detached from the socket 20.

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

In the side release type buckle 1 of the present embodiment, the connection portions 31A and 31B of the front wall 21A and the back wall 21B of the main body 21 are provided, and the connection portions 31A and 31B do not hinder the engagement portion 101 of the plug 10. The extent of engagement with the engaged portion 32 of the socket 20 is as close as possible to the engaged portion 32, so that when the plug 10 is coupled to the socket 20, even if the plug 10 and the socket 20 are separated from each other Further, the front wall 21A and the back wall 21B of the socket 20 are reinforced by the connecting portions 31A and 31B without bulging in the thickness direction thereof, and the thickness of the engaged portion 32 from the engaging portion 101 toward the socket 20 can be prevented. Separating and preventing mutual engagement from coming off and the plug 10 coming out of the socket 20.

In the side release type buckle 1 of the present embodiment, the end portions on the insertion port 22 side of the connection portions 31A and 31B are disposed closer to the insertion port 22 than the engaged portion 32 to which the pulling force is applied. Can definitely prevent insertion The seat 20 is bulged in the thickness direction, and the engagement between the engaging portion 101 and the engaged portion 32 can be prevented more reliably, and the plug 10 can be detached from the socket 20.

In the side release buckle 1 of the present embodiment, since the connection portions 31A and 31B are connected to the rear wall 21D, the L-shaped extension extending in both directions along the front wall 21A and the back wall 21B is formed integrally. The joint structure of the surface. The rigidity around the engaged portion 32 of the front wall 21A and the back wall 21B can be further improved, and the swelling of the socket 20 in the thickness direction can be more reliably prevented.

In the side release buckle 1 of the present embodiment, the end portions on the insertion port 22 side of the connection portions 31A and 31B are disposed closer to the edge 211 on the opposite side of the insertion port 22 than the cutout portions 21E and 21F. Since the position of the port 22 is such that the structure of the joint wall 21A and the back wall 21B around the cutout portions 21E and 21F is stronger, the bulging of the socket 20 in the thickness direction can be more surely prevented.

(Second embodiment)

Fig. 6 shows a second embodiment of the present invention.

Fig. 6 is a cross-sectional view showing a socket according to a second embodiment of the present invention.

In the socket 20A of the present embodiment, the length of the shaft line 25 of the notch portion is formed shorter than that of the first embodiment, and the surface wall 21A and the back wall 21B are formed from the belt attachment portion 26 side. The other notch portion 21G is cut out. A connecting portion 31C that connects the front wall 21A and the back wall 21B is formed along the edge of the other notched portion 21G.

In the connection portion 31C, the connection portions 31A and 31B of the first embodiment are connected to the insertion port 22 side, and the end portions of the connection portion 31C in the width direction of the socket 20A are connected to the rear wall 21D of the body 21. connection. Next, the cross-sectional shape of the connecting portion 31C corresponds to the other notched portion 21G described above, and is a substantially semi-circular shape that is convex toward the insertion opening 22 in the insertion direction of the plug 10. Among the connecting portions 31C, the curved surface portion 310 having a predetermined curvature in the vicinity of the end portions on both sides is the closest to the engaged portion 32.

In the present embodiment, the connecting portion 31C connects the front wall 21A and the rear wall 21B, and the socket 20A of the connecting portion 31C extends in the insertion direction on both sides in the wide direction, and connects the connecting portion 31C and the rear wall 21D. The same effects as those of the first embodiment described above can be obtained. Further, since the connecting portion 31C has a substantially semi-circular shape, the rigidity of the front wall 21A and the back wall 21B can be made larger, and the rigidity of the periphery of the other notched portion 21G can be ensured, and can be more reliably prevented. The socket 20A is bulged in the thickness direction.

(Third embodiment)

Fig. 7 shows a third embodiment of the present invention.

Fig. 7 is a cross-sectional view showing a socket according to a third embodiment of the present invention.

In Fig. 7, in the socket 20B of the present embodiment, the rear end portions of the connecting portions 31D and 31E are not connected to the rear wall 21D of the main body 21, and are provided away from the rear wall 21D by a predetermined distance. Next, the setting is: connected to the connecting portion The side faces of one of 31D and 31E serve as the ribs 40 of the support portion.

The cross-sectional shape of the rib 40 may be any shape that can support the connecting portions 31D and 31E, and may have any cross-sectional shape such as a quadrangular shape, a triangular shape, or a semicircular shape.

In the present embodiment, the same effect as the above-described first embodiment can be obtained, and only the rib 40 having a simple structure is provided on the side of the connecting portions 31D and 31E, so that the rib connecting portion 31D can be reliably reinforced. 31E itself.

However, the ribs 40 as described above may be provided on the side surfaces of the joint portions 31D and 31E. At this time, the rib 40 on the side of the engagement portion 32 is provided at a position where the engagement of the engagement portion 101 and the engaged portion 32 is not hindered.

(Modification)

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

In the first to third embodiments described above, the side release type buckle 1 has been described, but it may be a front release type buckle or another release type buckle.

In the first embodiment, the guide rod 13 of the plug 10 and the cutout portions 21E and 21F of the socket 20 have a Y-shape. However, the present invention is not limited thereto, and may be linear only. In short, as long as it faces the engagement portion 101 and When the side of the engaged portion 32 is formed largely, the shape is arbitrary.

Moreover, even at the rear end of the joint portion, as in the third embodiment described above When it is not connected to the rear wall 21D of the main body 21, as in the socket 20C shown in Fig. 8, the ribs 40 may not be provided on the respective sides of the connecting portions 31D and 31E.

Further, the engaged portion 32 of the present invention is not limited to the formation of the engaged surface 321 by the concave portion 29, and the engaged surface 321 may be formed by another structure.

For example, as shown in Fig. 9, the socket 20D is formed with a slit 29C from the tape mounting portion 26 of the main body 21 to allow the tape to be inserted and locked toward the insertion opening 22, and is jammed by the slit 29C. The stepped surface of the joint portion 32 forms the engaged surface 321 . In the present invention, the engaged surface 321 can be formed in the engaged portion 32 by the slit 29C as described above.

[Industrial availability]

In the present invention, it is possible to use a buckle as a connecting belt to each other, for example, a buckle having a pair of locking arms on both sides.

1‧‧‧Side release buckle

10‧‧‧ plug

11‧‧‧ base

12‧‧‧ feet

20, 20A, 20B, 20C, 20D‧‧‧ socket

21‧‧‧ body

21A‧‧‧Wall

21B‧‧‧Back wall

21D‧‧‧Back wall

21E, 21F‧‧‧cutting section

22‧‧‧Inlet

23‧‧‧ accommodating space

31A, 31B, 31C, 31D, 31E‧‧‧ Connections

32‧‧‧The Department of Engagement

101‧‧‧Clock Department

211‧‧‧

Fig. 1 is an exploded perspective view showing the entire configuration of a first embodiment of the present invention.

Fig. 2 is a plan view showing the entire structure of the first embodiment in an exploded manner.

Fig. 3 is a cross-sectional view showing the socket of the first embodiment.

Fig. 4 is a sectional view taken along line IV-IV in Fig. 3.

Fig. 5 is a view showing the plug and the socket of the first embodiment described above being knotted A cross-sectional view of the combined state.

Fig. 6 is a cross-sectional view showing a socket according to a second embodiment of the present invention.

Fig. 7 is a cross-sectional view showing a socket according to a third embodiment of the present invention.

Fig. 8 is a cross-sectional view showing a socket according to a modification of the present invention.

Fig. 9 is a cross-sectional view showing a socket of another modification of the present invention.

20‧‧‧ socket

21B‧‧‧Back wall

21D‧‧‧Back wall

21F‧‧‧cutting department

24‧‧‧Guide the way

25‧‧‧Axis line

28‧‧‧ Guidance Department

26‧‧‧With the department

29‧‧‧ recess

30‧‧‧ Hole Department

31A, 31B‧‧‧ Linkage

32‧‧‧The Department of Engagement

211‧‧‧

321‧‧‧Activated face

Claims (4)

A buckle comprising: a plug (10), and a socket (20, 20B-20D) for inserting the plug (10) into the card, the plug (10) having a base (11), And a leg portion (12) projecting from the base portion (11) and elastically deformable in a direction intersecting with respect to an insertion direction of the plug (10), and an engaging portion is formed to protrude from the leg portion (12) ( 101) The socket (20, 20B to 20D) has an insertion port (22) and is provided with a surface wall (21A) and a back wall (21B), and has the surface wall (21A) and the back surface The body (21) of the notch portion (21E, 21F) formed by cutting at least one of the wall (21B) from the insertion port (22) in the insertion direction, and the body (21) formed in the body (21) The accommodating space (23) of the leg portion (12) into which the insertion port (22) is inserted, and the engaged portion (32) at which the engaging portion (101) is engageable are provided in the accommodating space (23). There are connecting portions (31A, 31B, 31D, 31E) connecting the front wall (21A) and the rear wall (21B), and the connecting portions (31A, 31B, 31D, 31E) are interposed between the sockets (20, 20B). 20D) of the above-mentioned cutout portion (21E, 21F) is provided with a pair of edges (211) on the opposite side of the insertion port (22), and extends along the insertion direction of the plug (10), and the pair of coupling portions (31A, 31B, 31D, 31E) The insertion port (22) side end portion is disposed closer to the insertion port (22) than the edge (211) on the opposite side. The buckle according to the first aspect of the invention, wherein the insertion port (22) side end portion of the connecting portion (31A to 31E) is disposed closer to the insertion port than the engaged portion (32) ( 22) Location. The buckle of claim 2, wherein the main body (21) has a front side that is disposed in the insertion direction of the plug (10), that is, a rear side of the insertion direction (22) The rear wall (21D) extends toward the rear wall (21D) in the width direction of the main body (21), and the connecting portion (31A, 31B, 31C) is coupled to the rear wall (21D). The buckle of claim 1, 2 or 3, wherein the connecting portion (31A, 31B, 31D, 31E) and the engaged portion (32) are in the socket (20, 20B to 20D) The distance in the width direction is larger than the width dimension of the above-mentioned engaging portion (101).