JPS583686B2 - Method of manufacturing watch bands and similar products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a watch band and similar products (for example, bracelets, etc.), and particularly relates to a method for manufacturing a mesh band for a wristwatch and similar products. and its similar products.

Mesh bands in which the ends of a spiral wire are folded into both longitudinal edges of the band body, and mesh bands in which the ends of the spiral wire are brazed or welded on both longitudinal edges of the band body, are well known. be.

(For example, Utility Model Publication No. 27-5985, Utility Model Publication No. 8-
Publication No. 7720, etc.).

However, among these well-known bands, the former is constructed by folding the ends of the spiral wire into small gaps on both longitudinal edges of the band body, so it is difficult to fold the end of the spiral wire, and in extreme cases, the ends of the spiral wire The band may not be folded in and may protrude from the band body like a thorn.

Even if this does not result in a defective product, the process of folding the above-mentioned folds evenly in the same manner is extremely troublesome, and it is difficult to fold them evenly, resulting in variations in the degree of folding and unevenness on the front surface. , it is difficult to obtain a homogeneous product.

Of the latter, those that are brazed are unsightly and have no commercial value, and those that are welded have the welded ends protruding laterally on both longitudinal edges of the band body and often get caught on the cuffs of clothing. Moreover, this protrusion is inconvenient to handle, and improvements are desired.

In order to obtain a watch band and products similar thereto that do not have the above-mentioned disadvantages, the present invention forms a concave groove along the entire length of both longitudinal end surfaces of the original band, and inserts the ends of the spiral connected in this concave groove. The present invention relates to a manufacturing method in which the folding process is facilitated by folding, and the degree of folding is uniform, the folding is uniform, and a homogeneous product is obtained.

Examples will be described below.

The first invention is a large number of oppositely wound spirals (wire diameter 0.3
A right-handed spiral and a left-handed spiral of approximately 0.8 m/m are engaged with each other from the sides, and a core rod (0.3 to 0.8 m/m) is inserted into these numerous engaging portions.
8 m/m diameter thin rods) are passed through one by one, and the spirals are connected to form a band-like body (a band-like body about 2.5 cm wide),
This band-shaped body is compressed in the width direction from both longitudinal edges, and the band original shape (thickness 2
．． 5m/m), press one end of the core rod in the width direction of the band shape from one longitudinal side of the band shape, and push a part (other end) of the core rod onto the opposite side of the band shape. Extruded from one side edge (longitudinal edge on the opposite side),
Align one end of the core rod with one longitudinal edge of the band pattern, and cut the protruding part of the core rod along the opposite edge of the band pattern (the longitudinal edge of the opposite side from which the core rod protruded) using a cutter. The length of all the core rods is thus aligned to match the width of the original band shape, and then the length is determined by cutting to a predetermined length. A groove (width and depth of about 1 m/m) is formed along the entire length using a grinder, and the ends of the spiral temporarily fixed in this groove are folded in and overlapped in the width direction or length direction. Finally, the original band shape is compressed again in the width direction and also in the thickness direction to make it thin and shape it to obtain a product.

In the final compression process, a strong folded structure is obtained by recompressing in the width direction, a thin structure is obtained by compressing in the thickness direction, and at the same time, the final form as a band is obtained by shaping. Do it as a purpose.

The product obtained by this method has two different winding directions.
A structure in which different types of spirals are closely connected to each other in the width direction and with a very small gap in the length direction, and the ends of the spirals are folded into a groove and have a core rod inside. configured.

The second invention is a large number of spirals wound in the same direction (wire diameter 0).
．． Right-handed spirals or left-handed spirals of about 3 to 0.8 m/m) are engaged and connected to each other from the sides to form a band-shaped body, and this band-shaped body is compressed in the thickness direction and cut to a predetermined width. Then, the above spiral was deformed into a flat shape and temporarily fixed to form a band original shape (width 2.
The original shape (approximately 5 cm and thickness of approximately 2.4 to 2.5 m/m) is formed, then cut to a predetermined length to determine the length. Form a concave groove (a concave groove of about 1 m/m in both width and depth) with a grinder, fold the ends of the spiral temporarily fixed into this concave groove, overlap or abut in the width direction or length direction, Next, the original band shape is compressed and shaped in the width direction to obtain a strong folded structure, and further compressed in the thickness direction and length direction to make it thinner, and a strong interconnection structure between the spirals is obtained and shaped. and get the product.

The product obtained by this method has a structure in which spirals in the same winding direction are closely connected to each other in the width direction, closely connected to each other in the length direction, and the ends are folded into a groove. configured.

Therefore, the appearance of the product according to the second invention is almost the same as the appearance of the product according to the first invention.

The present invention goes through the steps described above, but a distinctive feature is the step of forming grooves along the entire length of both longitudinal end surfaces of the original band, and folding the ends of the engaged and connected spiral into the grooves. Therefore, by going through this process, it becomes easier to fold the spiral, improving processing efficiency, and it is possible to prevent variations in the degree of folding of each spiral and to fold it uniformly. and can provide homogeneous products.

Since the ends of each spiral are folded uniformly, the resulting product does not have any unevenness that would impair its appearance on the surface, making it a product with outstanding aesthetics, making it not only practical but also useful. The product is also suitable as a personal accessory.

Therefore, it is possible to provide a high-quality band and similar products that are significantly improved over known mesh bands of this type, thereby achieving the intended purpose.

Claims (1)

[Claims] 1. A large number of counter-wound spirals are laterally engaged with each other,
A core rod is passed through the engaging portion and connected to form a band-like body, and this belt-like body is compressed in the width direction to form a band original shape, and a part of the core rod is extruded and protruded from one side edge of this band original shape. , the protruding portion of the core rod is cut off along the edge of one side of the band original shape to make the length of the core rod equal to the width dimension of the band original shape, and then grooves are formed along the entire length on both longitudinal end surfaces of the band original shape. A method of manufacturing a watch band and similar products, characterized in that after folding the end of the spiral into the groove, the original band shape is compressed and shaped in the width direction and thickness direction. 2 A large number of spirals wound in the same direction are engaged and connected to each other from the sides to form a band-shaped body, and this band-shaped body is compressed in the thickness direction and cut to a predetermined width to form a band original shape. A concave groove is formed along the entire length on both longitudinal end surfaces of the band prototype, and after folding the end of the spiral into the concave groove, the band prototype is compressed and shaped in the width direction, and the band shape is shaped in the thickness direction and length direction. A method for manufacturing a watch band and similar products, characterized by compressing and shaping the watch band.