JPS5925235Y2 - watch band clasp - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a stopper that connects a watch band in a trifold shape.

In the past, trifold-shaped fasteners were usually made of metal materials such as stainless steel, and watch bands were also made of metal materials.

However, while the designs of watches and their bands are diversifying and becoming more and more diverse, the band clasps have not been able to break away from the silvery-white color of the stainless steel base, and they cannot be colored. When attempting to do so, there was a problem that it was not suitable for practical use in terms of durability, economy, etc.

This invention was made in view of the above circumstances, and its purpose is to provide a fastener that can be colored in a variety of colors on the surface of the fastener and is durable and economical. .

This invention will be explained in detail below based on an embodiment shown in the drawings.

Reference numerals 1 and 2 in the figure are watch bands, and these watch bands are connected by a stopper 3 in a trifold shape.

This fastener 3 has ends of the watch band 1 rotatably attached to side plates 5, 5 of a metal fitting main body 4 whose cross section is approximately U-shaped by known means, and the side plates 5
, 5 is rotatably attached to the tip of a folding bracket 6, and another folding bracket 7 is attached to the base end of the folding bracket 6.
The proximal end of the other bendable metal fitting 7 is rotatably attached to the base end, the watch band 2 is rotatably attached to the tip of the other bendable metal fitting 7, and a locking piece formed on a part of the other bendable metal fitting 7 is attached. 8 engages with the tip of the bendable metal fitting 6 to lock the rotating movement of the double-bendable metal fittings 6 and 7.

In addition, the metal fitting main body 4 has a shallow groove 10 along the length direction of the band on the front side of the front plate part 9, as well as both side plate parts 5, 5 and the front plate part 9, and a shallow groove 10 on both sides of the back side of the front plate part 9. Both fitting grooves 11, 11 are respectively formed along the length direction of the band.

On the other hand, what is indicated by the reference numeral 20 in the figure is a cover that is attached to cover the metal fitting main body 4. As shown in FIG. a cover plate part 21 that is in close contact with the surface of the top plate part 9; a folded piece 22 that is folded back at one end by nearly 180 degrees and that is in close contact with the back surface of the metal fitting body 4; Accordingly, the frame is configured to have a bending piece 23 that can be bent by 90°.

The cover 20 is colored to correspond to the color tone of the watch bands 1 and 2, and is made by injection molding or heating from a plate material (such as polysulfone resin) with high surface hardness and resistance to bending processing into the shape shown in FIG. It is formed by bending, etc.

Further, a presser plate 30 for fixing the cover 20 is fitted onto the back surface of the front plate portion 9 of the metal fitting main body 4.

This presser plate 30 presses the folded piece 22 and the bent piece 23 of the cover 20 against the back surface of the front plate part 9 of the metal fitting body 4, and has fitting grooves 11 or both sides of the metal fitting body 4 on both sides thereof. Both fitting pieces 31, 31 are formed to be fitted to the inner walls of the plate parts 5, 5, and the vertical cross-sectional shape is designed to be similar to the metal fitting main body 4, as shown in FIG.

Below, the case of assembling this idea will be explained.

The work of attaching the cover 20 and the presser plate 30 to the metal fitting main body 4 is performed before attaching the watch bands 1 and 2 and the double-folding metal fittings 6 and 7.

Fit the cover 20 so that the folded piece 22 becomes the back side of one end of the front plate 9 of the metal fitting main body 4, and then close the cover plate 2 of the cover 20.
1 into the shallow groove 10 of the metal fitting body 4, and with the bent piece 23 of the cover 20 in contact with the other end of the top plate part 9 and stretched, the back side is inserted as shown by arrow A in FIG. Then, insert the fitting piece 31 of the presser plate 30 into the fitting groove 1 of the metal fitting main body 4.
1, and the folded piece 22 and the folded piece 23 of the cover 20
is inserted between the metal fitting body 4 and the holding plate 30.

In the example shown in FIG. 3, the fitting piece 31 of the presser plate 30 is firmly fitted into the fitting groove 11 by the elastic force of the metal fitting main body 4.
The fitting body 4, cover 20,
The holding plate 30 is integrated.

Next, known watch bands 1 and 2 and double-folding metal fittings 6 and 7 are rotatably attached to the integrated metal fitting main body 4, and assembled into the state shown in FIG. 1.

Although the illustrated example shows a means for fitting the fitting pieces 31 of the presser plate 30 into the fitting grooves 11 of the fitting main body 4, the structure is not limited to this, and the both side plate portions 5 of the fitting main body 4, 5 Form small protrusions on the inner wall surface by pressing etc. to attach the presser plate 3.
0 may be locked.

As detailed above, in this invention, the surface of the metal fitting body is covered with a cover made of synthetic resin, and a part of this cover is fixed by a presser plate fitted on the back side of the metal fitting body. The surface of the metal fitting body can be colored in any desired color, allowing for any combination of colors with the watch and band, and it is easy to assemble by simply inserting the parts, which reduces cost increases. By covering it with synthetic resin, the durability of the metal fitting body is increased and the cover can be replaced, which has the effect of widening the range of uses.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a longitudinal sectional view, Fig. 2 is a plan view of the main part of Fig. 1, and Fig. 3 is a sectional view taken along line III-III in Fig. 2. , FIG. 4 is a perspective view of the cover. 1.2... Watch band, 3... Stop metal fitting, 4... Metal fitting body, 10... Shallow groove,
20...Cover, 22...Folding piece, 3
0... Pressing plate.

Claims (1)

[Scope of utility model registration request] In the clasp that connects the watch band in three folds,
A metal fitting body whose cross section is approximately U-shaped and has a shallow groove formed on the surface along the length direction of the band, and a metal fitting body that is fitted into the shallow groove of the metal fitting body and whose longitudinal dimension is A watch band consisting of a larger cover made of colored synthetic resin and having a folded piece on at least one end, and a presser plate that is fitted onto the back surface of the metal fitting body and presses both ends of the cover against the metal fitting body. Fasteners.