JPH07246106A - Buckle for belt - Google Patents

Abstract

PURPOSE:To offer buckles in one unit molding which can unfasten a belt easily at one touch by operation of an unlock button. CONSTITUTION:The buckle is composed of a buckle main part A with an inserting slit 1 and an unlock button 2 equipped and an insertion part B with an elastic tongue 3 to be inserted to the inserting slit 1 equipped and a belt inserting slit 4 made at the back end thereof. The unlock button 2 is linked to the buckle main part A and the stepped part for clutch at the back end of the sloping face 6 is positioned so that the elastic tongue 3 is clutched and locked to the upper edge of the opening at the end of the inserting slit 1 of the buckle main part A. Further, the lock is released by pushing the sloping face 6 of the elastic tongue 3 down to the lower edge of the unlock button 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buckle for fastening an end portion of a band or belt fastening band (hereinafter collectively referred to as a belt), and more particularly to a buckle provided with a push button for releasing a lock. It is related to the buckle of the form.

[0002]

2. Description of the Related Art Conventionally, a buckle for fixing one end or both ends of a belt and having a button for unlocking has been used for various purposes such as seat safety belts of automobiles and airplanes. Things are offered. Such a buckle is usually manufactured by incorporating the parts constituting the unlock button into the buckle body.

[0003]

Therefore, the conventional buckle of this kind has a problem that it is difficult to use for a relatively inexpensive belt because it has many components and the manufacturing cost is high. Further, the conventional buckle has a structure in which the lock is released by pushing the lock release button and the belt end is pulled out from the buckle by hand when the lock is released. Therefore, there is a drawback that the unlocking operation requires two actions and one-handed operation is difficult.

Therefore, an object of the present invention is to make it possible to inexpensively manufacture a buckle body having a lock release button by an integrally molded product made of synthetic resin, and at the same time, to release the belt end from the buckle body at the same time as releasing the lock. In this way, it is possible to provide a new buckle that can be easily unfastened by one-touch operation with one hand.

Further, a second object of the present invention is to insert and lock the belt ends from the left and right with respect to the buckle body, and to release the left and right locks with one touch and at the same time pop out the belt ends from the buckle body. A two-way buckle that can be used is provided at a low cost by an integrally molded product made of synthetic resin.

[0006]

In order to achieve the above object, a buckle according to the present invention has at least one insertion hole (1) opening toward a side surface and elastic rocking vertically. An integrally molded buckle body (A) made of synthetic resin having a movable lock release button (2) on the upper surface, and a plate-shaped elastic tongue with a sharp tip inserted into the insertion hole (1) ( 3) and an insert member (B) of a synthetic resin integrally molded with a belt insertion hole (4) at the rear end, and the lock release button (2) is a buckle via a hinge part (5). Body
It is connected to (A) and the lock release button is at the back of the insertion hole (1).
It is opened below (2), and an inclined surface (6) is formed upward from the sharp tip of the elastic tongue (3) of the insert member (B) toward the rear, and the inclined surface (6 ) Engagement step at the rear end
(7) is provided, and this engaging step (7) is an elastic tongue (3).
When the is inserted into the insertion hole (1) of the buckle body (A), the insertion hole
The position is set so as to engage and lock with the upper edge of the back opening of (1), and the inclined surface (6) of the elastic tongue (3) is pushed down to the lower end of the lock release button (2). In this structure, a pressing portion (8) for releasing the lock is provided.

Further, in the present invention, the insertion holes (1) for inserting the elastic tongue pieces (3) of the insert member (B) are formed on both left and right sides of the buckle body (A). Elastic tongue with pushing part (8) of lock release button (2) inserted from left and right
(3) A buckle provided on the left and right so as to press the inclined surfaces (6) and (6) of (3) at the same time.

[0008]

In the belt buckle configured as described above, the respective insert members (B), the belt insertion holes (4) of the (B),
As shown in FIG. 2, the end of the belt (C) is fixed to (4), and the insert members (B) and (B) are attached to the buckle body (A) insertion hole (1),
Used to fasten the belt (C) by inserting it into (1) from the left and right. When the elastic tongue piece (3) of the insert member (B) is inserted into the insertion hole (1), the engagement step portion (7) of the elastic tongue piece (3) is inserted into the insertion hole (3) as shown in FIG. ) Is engaged and locked at the upper edge of the opening at the back. When the lock release button (2) is pressed, the pressing parts (8) and (8) of the lock release button (2) press the inclined surface (6) of the elastic tongue (3) to move the elastic tongue (2). ) Is elastically deformed downward. The component component of the downward force received by the inclined surface (6) acts as a force for pushing the elastic tongue (2) outward. Elastic tongue (2) engagement step (7)
When is removed from the upper edge of the insertion hole (1), the insert member (B) is ejected from the buckle body (A) by the elastic repulsive force of the elastic tongue itself and the outward force. This allows the insert members (B) and (B) to be automatically ejected from the buckle body at the same time as unlocking the left and right insert members (B) and the elastic tongues of (B) with one touch. .

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show an embodiment of a buckle according to the present invention, which has a pair of left and right insertion holes (1), (1) opening toward both left and right side surfaces. A buckle body (A) having a lock release button (2) which can be elastically swung up and down and an elastic tongue with a sharp tip inserted into the insertion holes (1) and (1). A pair of insert members having a piece (3) and a belt insertion hole (4) at the rear end
It is composed of (B) and (B). The buckle body
Each of (A) and the insert member (B) is formed of a synthetic resin as an integrally molded product.

Unlock button of the buckle body (A)
(2) is the buckle body via the hinge part (5) that can elastically swing
It is connected to either of the front and rear edges of (A) so that when the lock release button (2) is pushed down and then released, the original position is restored. Further, the inner portions of the insertion holes (1) and (1) are opened below the lock release button (2).

Further, the elastic tongue of the insert member (B)
Inclined surface (6) facing upward from the sharp tip of (3)
Is formed, and an engaging step (7) is provided at the rear end of the inclined surface (6), and the engaging step (7) connects the elastic tongue (3) to the buckle body (A). The position is set so as to engage and lock with the upper edge of the back opening of the insertion hole (1) when inserted into the insertion hole (1). Also, the lock release button (2) of the buckle body (A)
At the lower end of the, insert member (B) inserted from the left and right,
The elastic tongues (3) of (B), the inclined surfaces (6) of (3), and the pressing portions (8) and (8) for releasing the lock by pressing the (6) are provided. still,
In the embodiment, the inclined surface (6) of the elastic tongue (3) is formed by a gentle arc, but it may be formed by a straight line.

In the embodiment shown in the drawings, the insert member (B) is provided with a guide rod (9) in parallel with the elastic tongue (3). When the guide rod (9) is inserted into the insertion hole (3) together with the elastic tongue (3), the engaging step (7) of the elastic tongue (3) is formed.
However, while leaving a downward moving space for releasing, so as to elastically engage with the upper edge of the opening at the back of the insertion hole,
The position of the elastic tongue in the insertion hole (1) is secured. However, instead of this guide rod (9), the base portion (3a) of the elastic tongue (3) may be formed thicker as shown in FIG.

In the belt buckle constructed as described above, the belt insertion holes of the respective insert members (B), (B)
As shown in Fig. 2 at (4) and (4), fasten the end of the belt (C),
Insert this insert member (B), (B) into the buckle body (A) insertion hole
It is used to fasten the belt (C) by inserting it into (1) and (1) from the left and right. Insert the elastic tongue (3) of the insert member (B) into the insertion hole
When it is inserted into (1), the engaging stepped portion (7) of the elastic tongue (3) is engaged with the upper edge of the opening at the back of the insertion hole (3) and locked, as shown in FIG. In this case, the upper wall surface (1a) of the insertion hole (1) so that the elastic tongue (3) engages while maintaining an appropriate elasticity.
It is good to tilt it so that it goes down a little toward the back.

By pressing the lock release button (2) of the buckle body (A), the left and right elastic tongues can be pushed with one touch.
The locks of (3) and (3) can be released. That is, when the lock release button (2) is pressed, the pressing portions (8) and (8) of the lock release button (2) press the inclined surface (6) of the elastic tongue (3) and the elastic tongue (2). ) Is elastically deformed downward. The component component of the downward force received by the inclined surface (6) acts as a force for pushing the elastic tongue (2) outward. When the engaging stepped portion (7) of the elastic tongue (2) is disengaged from the upper edge of the opening of the insertion hole (1), the elastic repulsive force of the elastic tongue itself and the outward force cause the insert member (B ) Is ejected from the buckle body (A). This allows the insert members (B) and (B) to be automatically ejected from the buckle body at the same time as unlocking the elastic tongues of the left and right insert members (B) and (B) with one touch. .

In the above embodiment, the insert members (B) and (B) are attached from the left and right of the buckle body (A), but one side of the insert member (B) is shown as shown in FIG. It is also possible to provide the insertion hole (1) only on one side and provide a belt insertion hole (10) for fixing the belt end on the other side. Further, as shown in FIG. 7, with respect to the buckle body (A) of the above-described embodiment, the belt insertion holes (11), (12) are also formed at the front and rear edges thereof.
It is also possible to provide the belt so that the belt can be fastened in a cross shape via the buckle body (A).

Although a typical embodiment of the present invention has been described above, the present invention is not necessarily limited to the structure of the above-described embodiment, and within the scope of having the constituent features of the present invention and being effective. Of course, it can be implemented by appropriately changing it.

[0017]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, by pressing the lock release button, the insert member with the belt end stopped can be pushed out from the buckle body at the same time when the lock is released. The belt can be easily unraveled by one-touch operation with one hand, and it can be provided at a low cost by an integrally molded product made of synthetic resin. Also, by providing insertion holes on the left and right of the buckle body, the belt ends can be inserted and locked from the left and right, and the belt ends can be flipped out from the buckle body at the same time by releasing the left and right locks with one touch. There is a remarkable effect that the buckle can be provided at a low cost by an integrally molded product made of synthetic resin.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along the line D-D in FIG. 1, showing a state in which a belt is attached.

FIG. 3 is a partial sectional view showing a locked state of the belt buckle.

FIG. 4 is a sectional view similar to FIG. 3, showing the operation of the belt buckle when unlocked.

FIG. 5 is a plan view of only the buckle body according to the present invention.

FIG. 6 is a plan view showing another embodiment of the buckle body.

FIG. 7 is a plan view showing another embodiment of the buckle body.

FIG. 8 is a sectional view showing another embodiment of the insert member.

[Explanation of symbols]

 (1) Insertion hole (2) Lock release button (3) Elastic tongue (4) Belt insertion hole (5) Hinge part (6) Inclined surface (7) Engaging step part (8) Pressing part (A) Buckle Body (B) Insert member

Claims (2)

[Claims] 1. An integrally-molded product made of synthetic resin, which has at least one insertion hole (1) opening toward the side and has a push-type lock release button (2) capable of elastically swinging up and down on the upper surface. With a buckle body (A) and a synthetic resin having a plate-like elastic tongue (3) with a sharp tip inserted into the insertion hole (1) and a belt insertion hole (4) at the rear end. It consists of an integrally molded insert member (B), the lock release button (2) is connected to the buckle body (A) via the hinge part (5), and the back of the insertion hole (1) is unlocked. The elastic tongue (3) of the insert member (B) is opened below the button (2).
An inclined surface (6) is formed so as to extend rearward from the sharp tip of the, and an engaging step (7) is provided at the rear end of the inclined surface (6). 7) Buckle body with elastic tongue (3)
The position is set so as to engage and lock with the upper edge of the back opening of the insertion hole (1) when inserted into the insertion hole (1) of (A). A buckle for a belt, in which a pressing portion (8) for pressing down the inclined surface (6) of the elastic tongue (3) to release the lock is provided at the lower end of the buckle. 2. The insertion holes (1) for inserting the elastic tongue pieces (3) of the insert member (B) are formed on both left and right sides of the buckle body (A), and the lock release button (2) is formed. Elastic tongue (3) with pressing part (8) of left and right inserted, inclined surfaces (6), (6) of (3)
Belt buckles that are provided on the left and right to press simultaneously.