JP3411407B2 - buckle - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to connecting straps together,
Alternatively, it relates to a buckle used for connecting a suspension belt of ski pants.

[0002]

2. Description of the Related Art In this type of buckle, two buckle bodies which can be engaged with each other form a set. For example, when the buckle body is used for connecting a suspension belt of ski pants, one of the two buckle bodies is attached to the ski pants. , The other end is attached to the tip of the hanging belt, and the two buckle bodies are connected to each other so that the tip of the hanging belt can be connected to the ski pants.

In this type of buckle, at the time of disengagement operation, it is necessary to push out a release operation portion provided on one buckle body while pulling out the other buckle body,
The dissociation operation was complicated.

Therefore, the applicant of the present invention releases the engaged state of both buckle bodies by inserting one buckle body inserted from the joined state of the two buckle bodies further deeply into the other buckle body, and thereafter. Proposes a so-called push-push buckle in which one of the inserted buckle bodies can be pulled out from the other buckle body without the both buckle bodies being joined again (actual fair No. 5-2092). ).

As shown in FIGS. 10 and 11, the conventionally proposed push-push type buckle as described above includes the insertion portion 12 of the male first buckle member 10 and the receiving portion of the female second buckle member 14. It is configured to be fastened when inserted into 16. When the insertion portion 12 is inserted into the receiving portion 16, the claw 24 provided on the elastic piece 22 of the second buckle member 14 comes into contact with the tapered surface 18 provided at the tip of the insertion portion 12. Then, when the first buckle member 10 is further inserted, the tapered surface 18 passes over the claw 24 while bending the elastic piece 22, and the elastic restoring force of the elastic piece 22 causes the claw 24 to engage the locking hole 20. Is locked to the second buckle member 1
4, the first buckle member 10 cannot be pulled out in the direction of arrow B in FIG. At the same time, the distal end of the insertion portion 12 contacts the stopper member 26 provided on the second buckle member 14 and capable of elastically advancing and retracting, and presses the insertion portion 12 in the direction of arrow B in the drawing to maintain the fastening state.

In order to release the buckle,
The buckle member 10 is inserted in the direction of the second buckle member 14 (direction of arrow A in FIG. 11) while resisting the biasing force of the stopper member 26. Then, the claw 24 rides on the block 28 and bends the elastic piece 22.

From this state, the first buckle member 10 is
When relatively separated from the second buckle member 14, the block 28 slidably mounted in the locking hole 20 of the first buckle member 10 moves to the distal end side of the insertion portion 12 with the pawl 24 placed thereon. Further, when the first buckle member 10 is pulled in the detaching direction (the direction opposite to the arrow A), the claw 24 slides on the block 28 and moves from the upper region of the locking hole 20 onto the tapered surface 18. , The fastening state between the first buckle member 10 and the second buckle member 14 is released.

However, when the first buckle member 10 is gently pulled away from the state where the claw 24 is placed on the block 28 during the above-described fastening release operation, the claw 24 falls off from the corner of the block 28 into the locking hole 20. The buckle may return to the fastening state again.

[0009]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention prevents a so-called push or push type buckle from being re-engaged in the middle of a disengaging operation of the buckle, so that the disengaging operation can be reliably and smoothly performed. The aim is to get a buckle that can be done.

[0010]

According to a first aspect of the present invention, there is provided a buckle having a hollow receiving portion provided on a first buckle member, an elastic piece provided on the receiving portion and having a claw protruding toward a hollow side, Two
The receiving plate is formed on the buckle member and is inserted into the receiving portion, the locking hole is formed in the inserting plate, and the block is slidably disposed in the locking hole. When the insertion plate is inserted into the portion, the locking hole is locked by the claw of the elastic piece, the first buckle member and the second buckle member engage with each other, and the second buckle member is pushed into the first buckle member. And a claw of the elastic piece rides on the block and is guided to the outside of the locking hole by a pulling operation of the second buckle member to release the engagement state between the first buckle member and the second buckle member, Claw of the elastic piece
Let ride the guide out of the locking hole guide pieces before
It is characterized by being provided in the block .

A buckle according to a second aspect of the present invention is characterized in that the guide piece projects outward from the locking hole in a state where the block is in contact with the hole wall of the locking hole.

[0012]

In the buckle according to the first aspect, in order to fasten the first buckle member and the second buckle member, the insertion plate of the second buckle member is inserted into the receiving portion of the first buckle member.
As a result, the tip of the insertion plate hits the claw, is inserted into the receiving portion while deforming the elastic piece, and the claw falls into the locking hole and is locked. As a result, the second buckle member is in a fastened state in which it cannot be pulled out from the first buckle member.

Next, when releasing the fastening of the buckle,
When the second buckle member is strongly pushed into the first buckle, the guide piece of the block slides on the claw to deform the elastic piece, and when the guide piece passes the claw, the elastic piece elastically returns and the claw blocks. Ride on top.

Here, when the second buckle member is pulled out,
The block pressed by the claw slides in the locking hole,
Movement is restricted by hitting the hole wall. Further, when the second buckle member is pulled out, the claw strongly pushes the block against the hole wall of the locking hole, slides up the guide piece, and moves from the top of the guide piece to the outside of the locking hole.

As described above, by providing the guide piece, at the moment when the claw gets over the guide piece, the drop can be assisted and the claw can be reliably transferred to the outside of the locking hole. Therefore, the pawl does not fall again between the locking hole and the block, and the buckle is not brought into the tightened state again.

In the buckle according to the second aspect, the guide piece projects outward from the locking hole in the state where the block is in contact with the hole wall of the locking hole. Therefore, the claw guided by the guide piece is reliably guided to the outside of the locking hole.

[0017]

Embodiments of the buckle according to the present invention will be described below with reference to FIGS. In addition, in FIGS. 1 to 9,
The parts corresponding to the conventional example shown in FIG. 10 and FIG. 11 are given the same reference numerals and are provided for the convenience of explanation.

As shown in FIG. 1, the second buckle member 10 on the male side and the first buckle member 14 on the female side can be fastened and released.

The second buckle member 10 is composed of an insertion plate 12 and a belt mounting portion 30. The insertion plate 12 is
The taper surface 18 is formed in a substantially rectangular plate shape so that its tip portion is tapered. A claw 24, which will be described later, smoothly rides on the tapered surface 18.

A rectangular locking hole 32 is formed in the center of the insertion plate 12. A locking projection 34 projects from the locking hole 32, and limits the moving range of the block 46 that slides in the locking hole 32.

Further, openings 36 and 38 are formed on both sides of the locking hole 32, and guide columns 40 and 42 are formed between the holes 36 and 38, respectively. Guide ridges 44 are provided on the opposite side surfaces of the guide columns 40 and 42, respectively. As shown in FIG. 2, a guide groove 48 formed on the side surface of the block 46 is engaged with the guide protrusion 44 so that the block 46 can slide in the locking hole 32 without rattling. I have to.

On the other hand, a guide piece 50 having a right-angled triangular cross section is projectingly provided at a corner of the upper surface 46A of the block 46. A claw 24, which will be described later, slides on the upper surface 46A of the block 46 on the inclined surface 50A of the guide piece 50, and the block 46 is pressed by the pressing force at that time.
The upright surface 46B of B is strongly pressed against the locking surface 20 of the locking hole 32. The block 46 is adapted to be fitted into the guide pillars 40 and 42 by bending the guide pillars 40 and 42 toward the openings 36 and 38, respectively.

Further, the mounting portion 30 of the second buckle member 10
A belt insertion hole 58 is formed in the belt insertion hole 5
A belt 60 is inserted and locked in the vicinity of an end portion of the belt 60.

On the other hand, the first buckle member 14 is composed of the belt 6
It is composed of a mounting portion 64 for mounting the second buckle member 2 and a hollow receiving portion 66 into which the insertion plate 12 of the first buckle member 14 is inserted. A belt insertion hole 68 is formed in the mounting portion 64, and the vicinity of the end of the belt 62 is inserted and locked in the belt insertion hole 68.

The receiving portion 66 is a substantially flat rectangular parallelepiped having a hollow inside.
The buckle insertion path 72 in which the insertion plate 12 of the second buckle member 10 is formed in the inner hollow portion of the receiving portion 66 through the opening 70.
It is designed to be inserted into. A substantially U-shaped slit 74 is formed on the upper surface of the receiving portion 66, and the portion left uncut serves as the elastic piece 22.

The elastic piece 22 is in the form of a cantilever arm extending in the insertion direction of the second buckle member 10 (the direction of arrow A in FIG. 1), and has a tip 2 at which the claw 2 protruding into the buckle insertion path 72 is formed.
4 are formed. The portion of the claw 24 facing the opening 70 is an inclined surface 76. The tip end of the insertion plate 12 of the second buckle member 10 in the middle of insertion hits the inclined surface 76,
The elastic piece 22 is elastically deformed to the outside of the buckle insertion path 72.

A rectangular hole 78 is formed in the receiving portion 66 at the end opposite to the opening 70. This rectangular hole 78
A cantilever arm 26 that extends in a direction substantially perpendicular to the insertion direction of the second buckle member 10 is provided in the. The free end of the cantilever arm 26 is formed with a projection 80 that projects into the buckle insertion path 72. The protrusion 80 is the elastic piece 2
At the position where the second claw 24 is locked in the locking hole 32 of the second buckle member 10, the second claw 24 hits the tip of the insertion plate 12 of the second buckle member 10 and urges it toward the opening 70 side. Otherwise, the second buckle member 10 cannot be inserted deeper than that.

Next, the method of use and operation of the buckle of this embodiment will be described. In order to fasten the second buckle member 10 and the first buckle member 14, as shown in FIGS. 3 and 4, the insertion plate 12 of the second buckle member 10 is received from the opening 70 of the first buckle member 14 to the receiving portion 66. Buckle insertion path 72
Insert inside. As a result, the tapered surface 18 at the tip of the insertion plate 12 hits the claw 24, and the slope 76 of the claw 24 smoothly climbs the slope of the tapered surface 18 and falls into the locking hole 32, so that the claw 24 engages. It is locked in the stop hole 32.
For this reason, the second buckle member 10 reaches the fastened state in which the second buckle member 10 cannot be pulled out in the arrow B direction with respect to the first buckle member 14.

At this time, the tip of the insertion plate 12 hits the projection 80 of the cantilever arm 26 to limit the movement of the insertion plate 12 in the direction of arrow A and to apply a biasing force in the direction of arrow B. . As a result, the claw 24 does not rattle,
It is locked to the locking surface 20 of the locking hole 32.

Next, when releasing the fastening of the buckle 11, as shown in FIGS. 5 to 7, the second buckle member 10 is used.
When is strongly pushed in the direction of arrow A, the tip of the insertion plate 12 is pushed forward while elastically deforming the cantilever arm 26. As a result, the guide piece 50 of the block 46 slides on the inclined surface 76 of the claw 26 and pushes the elastic piece 22 to the outside of the buckle insertion path 72. Then, the guide piece 50 makes the claw 26
After passing, the elastic piece 22 elastically returns and the claw 26 rides on the upper surface 56 of the block 46. The insertion plate 12
The amount of insertion of the cantilever arm 26 is limited by the stopper surface 71 that abuts the opening 70 of the receiving portion 22, so that the cantilever arm 26 is not excessively deformed and damaged.

Here, when the second buckle member 10 is pulled in the direction opposite to the arrow A, the block 46 pressed by the claw 26 slides in the locking hole 32 and hits the locking surface 20 to restrict the movement. To be done.

Next, when the second buckle member 10 is pulled out in the direction of the arrow B, the claw 24 strongly presses the block 46 against the locking surface 20 while sliding up the inclined surface 50A of the guide piece 50 to the top of the guide piece 50. To the tapered surface 18 and slip out of the locking hole 32.

As described above, by providing the guide piece 50, at the moment when the claw 24 gets over the top of the inclined surface 50A, the claw 24 can be reliably transferred to the tapered surface 18 by helping the drop. Therefore, the claw 24 does not fall into the locking hole 32 again, and the buckle 11 is not brought into the fastening state again.

Even when there is a step between the upper surface 46A of the block 46 and the upper surface of the insertion plate 12, the claw 2
Since 4 does not hit the opening edge of the locking hole 32, the claw 24 can be transferred to the tapered surface 18 from a high position.

Further, since the block 46 is pressed against the locking surface 20 when the claw 24 climbs the inclined surface 50A, no gap is opened between the block 46 and the locking surface 20.
Therefore, the claw 24 does not fall into the gap between the block 46 and the locking surface 20 and the buckle 11 is not brought into the fastening state again.

FIGS. 8 and 9 show a modification of the above-mentioned guide piece. That is, this guide piece 80 is
The block 46 extends obliquely upward from the corner portion, and the tip thereof projects forward from the standing surface 46B. Therefore, the nail 2
When 4 is located at the tip of the guide piece 80, since it has already reached the outside of the locking hole 32, it reliably moves to the tapered surface 18 and releases the buckled fastening state.

[0037]

Since the buckle of the present invention is configured as described above, the fastening release operation can be performed reliably and smoothly without being re-engaged during the fastening release operation.

[Brief description of drawings]

FIG. 1 is a perspective view of a buckle of this embodiment in a released state.

FIG. 2 is a perspective view showing a block of the buckle of this embodiment.

FIG. 3 is a cross-sectional view showing the operation of the buckle of this embodiment.

FIG. 4 is a cross-sectional view showing the operation of the buckle of this embodiment.

FIG. 5 is a cross-sectional view showing the operation of the buckle of this embodiment.

FIG. 6 is a cross-sectional view showing the operation of the buckle of this embodiment.

FIG. 7 is a cross-sectional view showing the operation of the buckle of this embodiment.

FIG. 8 is a perspective view showing a modified example of the guide piece of the block.

FIG. 9 is a cross-sectional view showing the operation of a buckle according to a modified example.

FIG. 10 is a cross-sectional view showing a conventional buckle.

FIG. 11 is a cross-sectional view showing a conventional buckle.

[Explanation of symbols]

10 Second buckle member 12 Insert plate 14 First buckle member 16 Receiver 20 Locking surface 22 Elastic piece 24 nails 32 locking hole 46 blocks 50 guide pieces 80 guide pieces

Claims (2)

(57) [Claims] 1. A hollow receiving portion provided on the first buckle member, an elastic piece provided on the receiving portion and having a claw protruding toward the hollow side, and a hollow portion provided on the second buckle member and inserted into the receiving portion. An insertion plate, a locking hole formed in the insertion plate, and a block slidably disposed in the locking hole. When the insertion plate is inserted into the receiving portion, the locking hole is formed. Is locked by the claw of the elastic piece, the first buckle member and the second buckle member are engaged, and when the second buckle member is pushed into the first buckle member, the claw of the elastic piece rides on the block. In a buckle that is guided to the outside of the locking hole by pulling out the second buckle member and releases the engagement state between the first buckle member and the second buckle member, the claw of the elastic piece is raised and the locking hole said block guide piece for guiding out of Buckles, characterized in that provided. 2. The buckle according to claim 1, wherein the guide piece projects outward from the locking hole in a state where the block is in contact with the hole wall of the locking hole.