JPH03215202A - Manufacture of buckle - Google Patents

Abstract

PURPOSE:To manufacture a product which is seamless with good working efficiency by containing a working process for a wrapping member, a working process for a buckle core, and a covering process for the wrapping member. CONSTITUTION:Leather is cut out in the shape of a frame, and a front member 1 and an inside member 2 are separately formed. After they are overlapped so that their flesh sides are on the outside, their inner peripheries are sewed with a thread line 3, and thus a wrapping member 4 is made. On the other hand, a buckle core 6 in the shape of another frame is independently made, and a relief groove 5 is formed around the inside thereof. After that, the front member 1 is reversed through an inside opening 4' on the wrapping member 4, and the wrapping member 4 is formed so that both the surface side of the front member 1 and the surface side of the inside member 2 are on the outside. The buckle core 6 is held therewith, and they are formed so as to be overlapped on the outside of the outer periphery of the buckle core 6, following which both a peripheral part 8 of the front member 1 and a peripheral part 9 of the inside member 2, are sewed with a thread line 10, and thus the buckle core 6 is covered with the wrapping member 4.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a method for manufacturing a walnut buckle.

[Conventional technology]

Conventionally, as shown in Fig. 7, a walnut buckle has been produced in which a belt-shaped walnut material α2 sewn together at a corner part αυ is folded in half and placed over each side of a buckle core α3, and sewn on the outer periphery with a thread α. is known.

[Problem to be solved by the invention]

When manufacturing the buckle described in the above-mentioned prior art, there are undesirable problems such as the seaming process of a part of the corner aυ is complicated and the workability is poor, and the product is left with traces of the seam at the corner. Ta.

An object of the present invention is to provide a novel method for manufacturing a buckle that is easy to work with and can produce a product that does not leave seam marks at the corners.

[Means to solve the problem]

In order to achieve the above object, the method for manufacturing the buckle of the present invention includes cutting a flexible sheet such as leather, cloth, or synthetic resin material into a frame shape to form the front material (1) and the back material (2) in the same manner. Then, the front material (1) and the back material (2) are polymerized so that the back surfaces are on the outside, and in this polymerized state, the inner peripheral edges of the front material (1) and the back material (2) are formed into threads. The manufacturing process of the walnut material (4) to be sewn in step (3) and the manufacturing process of the frame-shaped buckle core (6) with a relief groove (5) around the inner circumference using hard materials such as metal and hard plastic. step, by inverting the front material (1) or the back material (2) through the inner diameter hole (4)' of the walnut material (4);
4) so that the front side of the front material (1) and the front side of the back material (2) are on the outside, and these front materials (1)
), the buckle core (6) is inserted between the back material (2) and the stitched edge (7) formed by the thread (3) is secured to the escape groove (5).
) and the outer peripheral edge of the front material (1) (
8) and the outer peripheral edge (9) of the back material (2) to the buckle core (
6) The outer edge (8) of the front material (1) and the back material (2) are in a polymerized state on the outside of the outer circumference.
) and a step of attaching the knoremi material (4) to the outer peripheral edge (9) of the material (4) by sewing the outer peripheral edge (9) of the material with thread (10).

〔Example〕

An embodiment of the present invention will be described with reference to the drawings.First, leather is cut into a frame shape to form a front material (1) and a back material (2) in the same manner. 1) Polymerize the back material (2) so that the back side faces outward, and in this polymerized state, stitch the inner peripheral edges of the front material (11, back material (2)) with thread (3). Walnut wood (4) is produced.

Separately, a relief groove (
5) A frame-shaped buckle core body (6) surrounding the buckle core body (6) is manufactured.

Next, the front material (1) is inverted and drawn through the inner diameter hole (4)' of the walnut material (4), and the walnut material (4) is drawn on the front side of the front material (1) and the back material (2). The front side faces outward, and the buckle core (6) is inserted between the front material (1) and the back material (2), and the stitched edge (7) is formed by the thread (3). ) has escaped and entered I1l (5), and the outer peripheral edge (8) of the front material (1) and the outer peripheral edge (9) of the back material (2) are connected to the outer peripheral edge of the buckle core (6). The outside is in a polymerized state, and in this polymerized state, the outer peripheral edge (8) of the front material (1) and the outer peripheral edge (9) of the back material (2) are sewn with thread (10) to form the walnut material (4). )
is attached to the buckle core body (6) and placed on it to obtain a finished product.

In the embodiment shown in FIG. 6, the buckle core (6) is constructed by bonding.

Still, the pressure-sensitive adhesive for temporary fixing indicated by code 09α■' in the figure is used to hold down the outer peripheral edge (8) of the front material (1) and the outer peripheral edge (9) of the back material (2) in advance. This is for suturing with the thread (10) after the suturing is done.

The present invention deals with a state in which the outer peripheral edge (8) of the front material (1) and the outer peripheral edge (9) of the back material (2), which are sewn to the thread α■, are cracked at the outside of the thread αQ. Means for bonding with adhesive so that the outer edges (8)
9) A means for trimming the edge surface (edge surface) and a means for attaching a stopper may be applied as appropriate.

[Function] and [Effects of the Invention] Since the present invention has the above-described configuration, the seaming process of the corner portion αυ described in the above-mentioned conventional technique can be omitted, and the intended manufacturing work can be simplified. The present invention has an excellent effect of completely achieving the purpose of providing a new method for manufacturing a buckle that can produce a product with good elasticity and no seam marks left at the corners.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the state in which the buckle core body is placed over the walnut material, Figs. 2 and 3 are sectional views showing the state in which the front material is reversed, and Fig. 4 is a perspective view showing the finished product. 5 is a sectional view taken along line A-A in FIG. 4, FIG. 6 is a sectional view showing another finished product, and FIG. 7 is a partially cutaway perspective view showing a finished product obtained by the conventional method. (1)...Front material, (2)...Back material, (3)...
... Thread, (4) ... Walnut wood, (4)' ... Inner diameter hole, (5) ... Relief groove, (6) ゛゜゜ Buckle core body, (Force ... Sewing edge, (8) (9)...outer periphery, αO)...thread, aυ...corner part, α
...Walnut wood, αJ...buckle core, αbleed...thread, α9α9'...pressure sensitive adhesive.

Claims (1)

[Scope of Claims] A front material (1) is formed by cutting a flexible sheet such as leather, cloth, or synthetic resin material into a frame shape, and a back material (2) is formed in the same way, and these are the front materials (1). , walnut material (2) is polymerized so that the back side faces outward, and in this polymerized state, the inner peripheral edges of the front material (1) and back material (2) are sewn with thread (3). The manufacturing process of 4), the manufacturing process of a frame-shaped buckle core body (6) made of a hard material such as metal or hard plastic, and having an escape groove (5) around the inner periphery; and the internal diameter hole of the walnut material (4). (4) Flip the front material (1) or back material (2) through the walnut material (
4) so that the front side of the front material (1) and the front side of the back material (2) are on the outside, and these front materials (1)
), the buckle core (6) is inserted between the back material (2) and the stitched edge (7) formed by the thread (3) is secured to the escape groove (5).
) and the outer peripheral edge of the front material (1) (
8) and the outer peripheral edge (9) of the back material (2) to the buckle core (
6), and in this polymerized state, the outer peripheral edge (8) of the front material (1) and the back material (2)
) A method for producing a buckle, comprising the step of attaching a walnut material (4) to the outer peripheral edge (9) of the buckle (4) by sewing the outer peripheral edge (9) of the buckle with a thread (10).