JP3466280B2 - Buckle for fastening belt - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention engages with a buckle of a tightening belt used for tightening or fixing various articles, that is, by engaging a tightening belt having wedge-shaped grooves arranged in parallel with the belt surface to obtain a desired length of the tightening belt. It is related to the buckle that is fixed in place.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS.
By engaging with the wedge-shaped groove 2 formed on one side of the tightening belt 1,
There is a buckle 3 that fixes the tightening belt 1 to the desired length.

In this type of buckle 3, a buckle body 4 having a U-shaped cross section that straddles the surface of the tightening belt 1 on which the wedge-shaped groove 2 is formed, and a base wall 5 along the flat surface of the other surface of the tightening belt 1.
, The buckle body 4 is swingably mounted by a pin 7 so that the front end edge 6 of the buckle body 4 can be engaged with and disengaged from the wedge-shaped groove 2 of the tightening belt 1. The structure is provided with a spring 8 for urging the front end edge 6 of the body 4 against the surface of the tightening belt 1 on which the wedge-shaped groove 2 is formed.

The wedge-shaped groove 2 has a front wall surface formed vertically and a rear wall surface formed into an inclined surface.

Therefore, the tightening belt 1 is attached to the wedge-shaped groove 2
The buckle body 4 and the base wall 5 with the formation surface of the
When the front end edge 6 of the buckle body 4 slides on the rear inclined surface of the wedge-shaped groove 2 when it is inserted between the buckle 4 and the front end edge 6 of the buckle body 4, the buckle 4 moves. Moves toward the rear side of the tightening belt 1,
The length of the tightening belt 1 is adjusted to be short.

In this way, the tightening belt 1 inserted between the buckle body 4 and the base wall 5 has a front end edge 6 of the buckle body 4 which is a front vertical surface of the wedge-shaped groove even when pulled backward. At this time, the tightening belt 1 is not pulled out to the rear side, so that the tightening belt 1 is prevented from loosening.

When the tightening belt 1 is lengthened,
That is, when the buckle 3 is moved to the front side of the tightening belt 1, as shown by a broken line in FIG.
The rear end may be pushed down, and the front end edge 6 of the buckle body 14 fitted in the wedge-shaped groove 2 of the tightening belt 1 may be lifted to release the engagement with the wedge-shaped groove 2.

[0008]

By the way, in the buckle 3 as described above, when the rear end of the buckle body 4 is pushed downward as described above, the front edge 6 of the buckle body 4 rises upward to cause the buckle to buckle. Front edge 6 of body 4 and wedge-shaped groove 2
Since the engagement with the buckle body 3 is released, when an object hits the rear end of the buckle body 3, the front edge 6 of the buckle body 4 is abruptly changed.
The wedge-shaped groove 2 is disengaged, the buckle 3 moves to the front side of the tightening belt 1, the tightening by the tightening belt 1 may be loosened, and the tightening belt 1 may come off from the buckle 3.

Even when the front end edge 6 of the buckle body 4 is fitted in the wedge-shaped groove 2 of the tightening belt 1, the front end edge 6 of the buckle body 4 is rearward along the rear inclined surface of the wedge-shaped groove 2. Since it is slidable to the side, the buckle 3 easily moves to the rear side and it is difficult to fix the buckle 3 at the optimum position.

Further, in the buckle 3, since the wedge-shaped groove 1 of the tightening belt 1 faces the upper surface side, there is a problem that the appearance is spoiled.

Therefore, according to the present invention, not only can the buckle be fixed to the tightening belt so that it does not move in the loosening direction, but also that it does not move in the tightening direction. It is difficult to release the fixed state of the fastening belt from the fastening belt, and the wedge-shaped groove of the fastening belt is located on the lower surface side to provide a good-looking buckle.

[0012]

A buckle for a tightening belt according to the present invention comprises a base wall facing a lower surface of the tightening belt and an upper surface of the tightening belt. A top wall facing
It is formed by side walls located on both sides of the tightening belt, and an inner case consisting of a top wall and both side walls is slidably housed inside the outer case in the front-rear direction, and the rear wall is attached to the base wall of the outer case. A state in which a bending claw that rises in the vertical direction and whose tip fits into the wedge-shaped groove of the tightening belt is formed with flexibility in the vertical direction, and the inner case is slid forward on the inside of the side wall of the inner case. so,
A lock part that fits under the bending claw and slides the inner case to the rear side and is released from the lower position of the bending claw to the rear side is provided, and the locking part is provided between the inner case and the outer case. The engaging means is provided so as to engage in a state of being positioned below.

[0013]

[Function] When the inner case is slid forward with respect to the outer case and the lock portion of the inner case is fitted under the bending claw formed on the base wall of the outer case, the bending claw does not move downward. The buckle consisting of the outer case and the inner case is held in a state where the tip of the bending claw is fitted in the wedge-shaped groove on the lower surface of the tightening belt, and does not move in the front or rear direction with respect to the tightening belt.

Then, the inner case is slid rearward with respect to the outer case, and the lock portion of the inner case is removed rearward from the lower position of the bending claw formed on the base wall of the outer case. When the wall surface of the wedge-shaped groove of the tightening belt hits the flexible bending claw, the buckle can be lowered downward, so that the buckle can be moved in either the front or rear direction with respect to the tightening belt.

Since the engaging means is provided between the inner case and the outer case so that the lock portion is located below the bending pawl, the lock portion is located rearward from the position below the bending pawl. When disengaged, it is necessary to release the engaging means, and since the lock part is released by sliding the inner case rearward with respect to the outer case, the lock part is abruptly released. Never.

[0016]

1 to 4 show a first buckle of the present invention.
An example is shown.

The buckle 10 is attached to the end portion of the belt 11 and is used for connecting with the tightening belt 12.

The buckle 10 comprises an outer case 13 and an inner case 14 housed in the outer case 13 slidably in the front-rear direction.

The outer case 13 comprises a base wall 15, left and right side walls 16 and an upper wall 17 facing the rear half of the base wall 15.

The tightening belt 12 is formed such that wedge-shaped grooves 18 are arranged in parallel on the lower surface, is inserted from the rear side into the inner case 14 slidably accommodated in the outer case 13, and the wedge-shaped grooves 18 on the lower surface are outside. It faces the upper surface of the base wall 15 of the case 13.

The base wall 15 is formed with a bending claw 19 which rises rearward and has a tip end which fits in the wedge-shaped groove 18 of the tightening belt 12 and which has flexibility in the vertical direction.

The inner case 14 slidably accommodated in the outer case 13 is composed of an upper surface wall 20 and both side walls 21, and the inner case 14 is located at the front lower part of the inner lower side of the both side walls 21. A lock portion 22 is fitted around the bending claw 19 in the slid state, and a lock portion 22 is extended from the lower position of the bending claw 19 to the rear side while the inner case 14 is slid rearward.

Further, an engaging claw 23 is formed at the center of the outer surface of the side wall 21 of the inner case 14 by forming a parallel notch upward from the lower edge of the side wall 21.

On the side wall 16 of the outer case 13, the inner case 14 is slid forward so that the lock portion 22 of the inner case 14 is fitted under the bending claws 19 of the inner case 14. An engagement hole 24 is formed in which the engagement claw 23 is detachably fitted.

The end portion of the belt 11 to which the buckle 10 having the above-described structure is attached is the base wall 1 of the outer case 13.
5, a mounting hole 25 is formed in such a wide area that the side wall 16 and the upper surface wall 17 of the outer case 13 fit.
1 is fitted into the mounting hole 25 from the lower surface side.

The inner case 14 is the outer case 1
After fitting 3 into the mounting hole 25 of the belt 11, the lock portion 22 of the inner case 14 is accommodated in the outer case 13 so as to pass over the bending claw 19 from the front side of the outer case 13.

As described above, at the end of the belt 11,
The outer case 13 and the inner case 14 are attached, and the lock portion 22 of the inner case 14 is attached to the outer case 13 as shown in FIG.
When the bending claw 19 of the outer case 13 and the inner case 1 are removed from the lower position of the bending claw 19 of the rear case to the rear side.
4 between the upper surface wall 20 and the lower surface of the upper wall 20, the tightening belt 12 is inserted with the wedge-shaped groove 18 facing the lower surface.
As shown in (b), the tip of the bending claw 19 hits the inclined surface of the wedge-shaped groove 18 of the tightening belt 12, and the bending claw 19 bends downward. Therefore, the tightening belt 12 can be inserted to any position. it can.

Further, as shown in FIG. 4 (b), when the lock portion 22 of the inner case 14 is disengaged to the rear side of the bending claw 19 of the outer case 13, the tightening belt 1
When 2 is pulled rearward, the vertical surface of the wedge-shaped groove 18 of the tightening belt 12 hits the tip of the bending claw 19 from the front side, and the bending claw 19 bends downward,
The tightening belt 12 can be pulled out toward the rear side.

Therefore, as shown in FIG. 4B, when the lock portion 22 of the inner case 14 is disengaged to the rear side of the bending claw 19 of the outer case 13, the tightening belt 12 is attached to the buckle 10. You can insert and pull out freely. That is, in this state, the buckle 10 can be slid in the front-back direction with respect to the tightening belt 12.

Next, as shown in FIG. 4 (c), the inner case 14 is slid forward and the lock portion 22 of the inner case 14 is fitted under the bending claw 19 of the outer case 13 to tighten it. Even if the bending claw 19 is fitted into the wedge-shaped groove 18 on the lower surface of the belt 12 and the tightening belt 12 is moved back and forth, the bending claw 19 does not lower, so the tightening belt 12 does not move back and forth, and the buckle 10 is tightened. It is fixed to the belt 12.

Further, the bending claw 19 of the outer case 13
Since the engaging claw 23 of the side wall 21 of the inner case 14 is fitted into the engaging hole 24 of the side wall 16 of the outer case 13 in a state where the lock portion 22 of the inner case 14 is fitted under the inner case 14, 14 is slid to the rear side so that the lock portion 2 of the inner case 14 moves from a position below the bending claw 19 of the outer case 13.
When removing 2 to the rear side, the engagement state of the engagement claw 23 of the inner case 14 and the engagement hole 24 of the outer case 13 is changed to the inner case 1
You must release 4 by pushing it strongly to the rear.

Therefore, the fixing state of the buckle 10 to the tightening belt 12 is stabilized, and the buckle 1 is abruptly changed.
The fixed state of 0 will not be released.

Next, FIGS. 5 and 6 show a second embodiment of the buckle 10 of the present invention, which is different from the first embodiment in that the engaging means for engaging the inner case 14 and the outer case 13 with each other. Be different.

That is, in this embodiment, the engaging claw 23 is formed along the lower edge of the side wall 21 of the inner case 14, and the engaging claw 23 is fitted to the side wall 16 of the outer case 13. Hole 2
4 and along the lower edge of the outer surface of the side wall 16,
A lock releasing piece 26 is integrally formed which is fitted from the outer surface side and pushes the engaging claw 23 in the engaging hole 24 inward.

In the third embodiment shown in FIGS. 7 and 8, the engaging claw 23 of the inner case 14 is formed on the upper wall 20,
At the front edge of the upper surface wall 17 of the outer case 13, an engaging recess 27 is formed in which the engaging claw 23 of the inner case 20 is hooked.

In the fourth embodiment shown in FIG. 9, the base wall 15 of the outer case 13 is formed integrally with the belt 11,
This is an example in which the number of parts is omitted.

[0037]

As described above, the buckle of the present invention is
By sliding the inner case to the front side of the outer case, it is possible to maintain the fixed state so that it does not move in either the loosening direction or the tightening direction with respect to the tightening belt, and the fixed state is maintained by an unexpected force. It will not be released, so the tightening belt will not suddenly come loose or come off.

In addition, the buckle of the present invention has an effect that the wedge-shaped groove of the tightening belt faces the lower surface side, so that the buckle has a good appearance.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a buckle according to the present invention.

FIG. 2 is a perspective view of the assembled state of the same.

FIG. 3 is a vertical sectional front view of the same.

4 (a), (b) and (c) are vertical side views showing a usage state of the buckle.

FIG. 5 is an exploded perspective view showing a second embodiment of the buckle of the present invention.

FIG. 6 is a partially enlarged sectional view of a second embodiment of the above.

FIG. 7 is an exploded perspective view showing a third embodiment of the buckle of the present invention.

FIG. 8 is a vertical sectional front view showing a third embodiment of the above.

FIG. 9 is an exploded perspective view showing a fourth embodiment of the buckle of the present invention.

FIG. 10 is a perspective view of a conventional example.

FIG. 11 is a vertical sectional side view of a conventional example.

[Explanation of symbols]

10 buckles 11 belts 12 tightening belt 13 outer case 14 inner case 16 Side wall 17 Top wall 18 wedge-shaped groove 19 Bending claw 20 Top wall 21 Side wall 22 Lock part 23 Engaging claw 24 Engagement hole 25 mounting holes 26 unlocking piece 27 Engagement recess

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A44B 21/00 A44B 11/00

Claims (4)

(57) [Claims] 1. An outer case for inserting a tightening belt having wedge-shaped grooves arranged in parallel on the lower surface, a base wall facing the lower surface of the tightening belt, and an upper wall facing the upper surface of the tightening belt.
It is formed by side walls located on both sides of the tightening belt, and an inner case consisting of a top wall and both side walls is slidably housed inside the outer case in the front-rear direction, and the rear wall is attached to the base wall of the outer case. A state in which a bending claw that rises in the vertical direction and whose tip fits into the wedge-shaped groove of the tightening belt is formed with flexibility in the vertical direction, and the inner case is slid forward on the inside of the side wall of the inner case. so,
A lock part that fits under the bending claw and slides the inner case to the rear side and is released from the lower position of the bending claw to the rear side is provided, and the locking part is provided between the inner case and the outer case. A buckle for a tightening belt, characterized in that it is provided with engaging means for engaging in a state of being positioned below the. 2. The engaging means comprises an engaging claw formed outside the side wall of the inner case and an engaging hole formed in the side wall of the outer case into which the engaging claw is removably fitted. Claim 1
Buckle for the tightening belt shown. 3. The engaging means includes an engaging claw formed on an upper surface wall of the inner case, and an engaging recess formed on a front end edge of the upper surface wall of the outer case on which the engaging claw is removably hooked. The tightening belt according to claim 1, comprising: 4. The buckle for a tightening belt according to claim 1, wherein the base wall of the outer case is formed integrally with the belt portion.