JPH0228734Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention can be attached to one end of a belt such as suspenders for pants, and can be used to adjust the length of the belt and to fit it into a snap provided on the side of the pants. This relates to a buckle used for fixing the ends of a belt by fitting. Specifically, it has belt insertion holes formed at both ends, and a long hole formed in the center in the direction connecting both belt insertion holes. A buckle body formed, a gear member for preventing the belt from slipping off, which is composed of a gear-shaped part disposed on the front side of the buckle body and a central shaft part protruding from the center part of the back surface thereof, and a gear member disposed on the back side of the buckle body. A fitting member for a snap consisting of a disc-shaped portion and a fitting portion provided at the center thereof, and the gear member and the fitting member are connected to each other through the central shaft portion passed through the elongated hole. The present invention relates to an improvement in a buckle configured to be connected to each other and to be rotatable and slidable within the range of the elongated hole.

[Conventional technology]

Metal buckles have been known for a long time as this type of buckle. FIG. 7 is a sectional view showing a conventional metal buckle. In the figure, a is a buckle body, b is a gear body, and c is a fitting member. d is a belt, and e is a snap that fits into the fitting member c.

[Problem that the invention attempts to solve]

In recent years, in the distribution process of clothing, sewing needles and pins have been checked using needle detection devices to prevent consumers from being injured by needles and pins that have gotten into clothing.

However, with conventional metal buckles,
The needle detection device will detect this, and it will be difficult to determine whether the abnormal detection signal is from a needle or pin that has gotten into the clothing or from the buckle. It is not possible.

Additionally, metal buckles have the drawbacks of being limited in color and being susceptible to rust.

These conventional drawbacks can be overcome by making the buckle made of synthetic resin, but
If it is made of synthetic resin, the following problems arise.

In other words, synthetic resins are generally softer and less strong than metals, so when the three members of the buckle body a, gear member b, and fitting member c are made of synthetic resin molded products, it is necessary to ensure the necessary strength. It is necessary to increase the thickness of these three members,
As a result, the entire buckle formed by joining the three parts becomes extremely thick, which is not desirable in terms of design.

Furthermore, if the gear-shaped portion of the gear member b is thick, the outer circumferential portion of the gear-shaped portion will not bite into the belt, and the gear member b will not be able to prevent the belt d from slipping completely, making it likely to loosen.

The purpose of the present invention is to solve these problems that arise when the buckle is made of synthetic resin.

[Means for solving problems]

The technical measures taken by the present invention to solve the above problems are as follows.

That is, in the present invention, in the buckle mentioned at the beginning, the buckle main body, the gear member, and the fitting member are each made of synthetic resin, and the fitting member is provided on the back surface of the buckle main body and around the elongated hole. forming a concave portion corresponding to the diameter of the disc-shaped portion;
The disk-shaped portion is fitted into the recessed portion, and the outer circumferential portion of the gear-shaped portion of the gear member is formed into a tapered shape whose back surface is flat and whose surface is inclined so as to approach the surface of the buckle main body as it goes outward in the radial direction. It is characterized by being formed into a shape.

[Effect]

The buckle with the above structure is constructed by inserting the belt into one belt insertion hole from the back side of the buckle body, and inserting the belt into the other belt insertion hole from the front side of the buckle body while straddling the gear member. Then, it is attached to the end of the belt.

When a force is applied to the belt in the direction of pulling it out of the buckle while the fitting member is fitted to a mating snap provided on pants, etc., the fitting member and the gear member integral therewith are pulled out by the snap. Since the buckle body is in a fixed position, the buckle body slides with respect to the gear member within the range of the elongated hole, and the edge of the belt insertion hole on the lower side in the sliding direction and the gear-shaped part of the gear member opposite thereto. As the distance between the two narrows, the gear-like part bites into the belt.
The function of preventing the belt from slipping out is demonstrated. In this case, the outer periphery of the gear-shaped portion is formed so that the back surface thereof is flat and the front surface is tapered such that the outer radial direction approaches the surface of the buckle body. ) is cutting-edge, but
The flat back surface is located approximately at right angles to the belt that is trying to slip out in the thickness direction of the buckle body, and has no relief angle to the belt, so even if the gear-shaped part is thick, the belt does not slip. can be prevented.

〔Example〕

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

Fig. 1 is a perspective view of the buckle according to the present invention seen from the back side, Fig. 2 is a sectional view taken in a direction perpendicular to the long hole of the buckle, Fig. 3 is a perspective view showing the components of the buckle, and Fig. 4 is a perspective view of the buckle according to the present invention. A cross-sectional view showing the components of the buckle,
FIG. 5 is a sectional view showing how the buckle is used.

In the figure, A indicates belt insertion holes 1 and 1 at both ends.
, with holes 1 for inserting both belts in the center,
B is a belt puller consisting of a gear-shaped part 3 arranged on the front side of the buckle main body A and a central shaft part 4 protruding from the center of the back surface of the buckle body A. gear member for stopping,
C is a fitting member for a snap consisting of a disc-shaped part 5 arranged on the back side of the buckle main body A and a male fitting part 6 provided in the center of one side of the disc-shaped part 5, and these A, B, C Both are made of synthetic resin.

Two-stage recesses 7 and 8 are formed on the back surface of the buckle body A and around the elongated hole 2. The inner diameter and depth of the inner recess 7 are set corresponding to the diameter and protrusion height of the protrusion 5a formed on the back surface of the disc-shaped portion 5 of the fitting member C. The inner diameter and depth of the disc-shaped portion 5 are set in accordance with the diameter and thickness of the disc-shaped portion 5. As shown in FIG. 2, when assembled into a buckle (the gear member B and the fitting member C are connected to each other), the convex portion 5a
is fitted into the recessed part 7, and the disc-shaped part 5 is fitted into the recessed part 8, so that the overall thickness of the buckle can be made as thin as possible. Note that there is a convex portion 5 on the back surface of the disc-shaped portion 5.
In the case of a fitting member B that does not have a, the inner recessed portion 7 is omitted.

The central shaft portion 4 of the gear member B is a stepped shaft in which the root portion 4a is thicker than the tip side 4b, and the diameter of the root portion 4a is set approximately equal to the width of the elongated hole 2, and the diameter of the root portion 4a is set to be approximately equal to the width of the long hole 2, and The diameter is set approximately equal to the inner diameter of the through hole 5b formed at the center of the fitting member C. The gear-shaped outer peripheral portion of the gear-shaped portion 3 is
As shown in FIG.
It is formed in a tapered shape so that it approaches the surface.

The gear member B and the fitting member C are arranged such that the distal end side 4b of the central shaft portion 4 passed through the elongated hole 2 is inserted into the through hole 5 of the fitting member C.
b, and is connected by caulking by hitting its protruding tip and deforming it to expand its diameter, and is configured to be freely rotatable and slidable within the elongated hole 2. In this embodiment, the maximum sliding amount of the gear member B and the fitting member C is determined by the contact between the root portion 4a of the central shaft portion 4 and the edge of the elongated hole 2. ing.

As shown in FIG. 5, the buckle having the above structure is constructed by inserting the belt D into one of the belt insertion holes 1 from the back side of the buckle body A, straddling the top of the gear member B, and passing the belt D from the back side of the buckle body A to the front side of the buckle body A. By inserting the belt D into the other belt insertion hole 1,
Attached to the end. In the figure, E is a snap provided on F, such as pants, and has a female fitting part G that fits into the fitting part 6 of the fitting member C.

When the belt D is pulled in the direction in which it comes out of the buckle body A (the direction indicated by the arrow in Fig. 5),
Since the gear member B is in a fixed position due to the fitting between the fitting member C and the snap E, the buckle body A slides with respect to the gear member B together with the belt D, as shown in FIG. As such, the distance l between the edge of the belt insertion hole 1 on the lower side in the sliding direction and the gear-shaped portion 3 opposing this narrows, and the gear-shaped portion 3 bites into the belt D, causing the belt D to slip (come out). is prevented. In this case, since the gear member B is made of synthetic resin, the thickness of the gear-shaped portion 3 is considerably thicker, but as shown in the figure,
Since the outer periphery of the gear-shaped portion 3 is formed into a tapered shape, the gear-shaped portion 3 has a sharp point, and since its flat back surface is located approximately perpendicular to the belt D, there is no clearance angle with respect to the belt D. The tip of the gear-shaped portion 3 is reliably bitten into the belt D, and slippage of the belt D can be reliably prevented.

FIG. 6 shows another embodiment of the invention. This embodiment is characterized in that ribs 8a, 8a are provided at both ends of the recessed portion 8 to reinforce the belt body A. The maximum sliding amount of the gear member B is determined by the contact between the edge of the elongated hole 2 and the base of the central shaft portion, as in the previous embodiment.
The maximum sliding amount may be determined by the contact between the ribs 8a, 8a and the disc-shaped portion 5 of the fitting member C. Furthermore, in each of the embodiments, the fitting part 6 of the fitting member C is male type, and the fitting part G on the side of the snap E is female type, but the male and female relationship may be reversed. .

[Effect of idea]

The present invention has the above-mentioned configuration, and since the buckle main body, the gear member, and the fitting member are each made of synthetic resin, the buckle can be left attached.
Clothing can be passed through a meter reading device. Various colors can be set by selecting the material resin and pigment.
In addition to the various advantages of being made of synthetic resin, such as no rust, the following effects can be obtained.

A recessed portion corresponding to the diameter of the disc-shaped portion of the fitting member is formed on the back surface of the buckle body and around the elongated hole, and the disc-shaped portion is fitted into this recessed portion. By making the three members of the buckle main body, the gear member, and the fitting member made of synthetic resin, the thickness of the entire buckle can be made as thin as possible even if the thickness of these three members becomes large.

The outer periphery of the gear-shaped portion of the gear member is formed into a tapered shape with a flat back surface and a tapered surface that approaches the surface of the buckle main body as it goes outward in the radial direction. Even if the belt is thick, it can reliably prevent the belt from slipping.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the buckle according to the present invention seen from the back side, Fig. 2 is a sectional view taken in a direction perpendicular to the long hole of the buckle, Fig. 3 is a perspective view showing the components of the buckle, and Fig. 4 is a perspective view of the buckle according to the present invention. A cross-sectional view showing the components of the buckle,
FIG. 5 is a sectional view showing how the buckle is used. FIG. 6 is a perspective view of a buckle showing another embodiment of the present invention. FIG. 7 is a sectional view showing a conventional example. A... Buckle body, B... Gear member, C...
Fitting member, 1... Belt insertion hole, 2... Long hole,
3... Gear-shaped part, 4... Central shaft part, 5... Disc-shaped part, 6... Fitting part, 8... Recessed part.

Claims (1)

[Scope of utility model registration request] A buckle body A having a belt insertion hole 1 formed at both ends and a long hole 2 formed in the center in a direction connecting both the belt insertion holes 1, and a buckle body A arranged on the surface side of the buckle body A. A gear member B for preventing the belt from coming off, which is composed of a gear-shaped part 3 and a central shaft part 4 protruding from the center part of the back surface thereof, and a disc-shaped part 5 arranged on the back side of the buckle body A, and a disc-shaped part 5 provided at the center part thereof. A fitting member C for a snap consisting of a fitting part 6
The gear member B and the fitting member C are connected to each other via the central shaft portion 4 passed through the long hole 2, and are rotatable and slidable within the range of the long hole 2. In this buckle, the buckle main body A, the gear member B, and the fitting member C are each made of synthetic resin, and the fitting member C is provided on the back surface of the buckle main body A and around the elongated hole 2. A recessed part 8 corresponding to the diameter of the disc-shaped part 5 of the gear member B is formed, and the disc-shaped part 5 is fitted into this recessed part 8.
A buckle characterized in that the outer circumferential portion of the buckle is tapered so that its back surface is flat and its surface is inclined so that it approaches the surface of the buckle body A as it goes outward in the radial direction.