JPS6337643B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a watch band made of so-called solid pieces.

Conventionally, the method of connecting solid pieces was to create holes in the solid pieces themselves and insert pins into the holes to connect them.
Since it was developed to fix short pipes to solid pieces and connect them by inserting pins into the short pipes, it became possible to provide thin watch bands made of difficult-to-cut materials such as stainless steel. 147900 specification).
However, this method takes time to weld the short pipes to the solid pieces, and because the pins are inserted into the pipes to connect each solid piece, each adjacent short pipe is placed directly above the other. Since it requires high welding precision, it is undeniable that productivity is difficult and costs are high.

The present invention provides a watch band in which the short pipes do not need to be fixed to the solid piece by fixing the connecting member by plate bending to the solid piece, thereby correcting the conventional drawbacks.

Next, the present invention will be explained with reference to the drawings. That is, this invention has an upper piece 5 which has arcuate surfaces 1 and 2 on both sides of a square piece, and a groove 4 between both arcuate surfaces 1 and 2 on the bottom surface 3, and two grooves on the lower side of the convex portion 6. legs 7,8
are integrally provided and the legs 7, 8 and head 9 are curled upward to form elastic tubes 10, 1.
An umbrella pin 17 is made up of a lower piece 13, a head 14, a thick shaft 15, and a thin shaft 16.
and the base 18 of the lower piece 13 in the groove 4 of the upper piece 5.
The pieces 19 that have been fitted are fitted adjacently to each other, and the elastic cylinder 1
This is a watch band in which umbrella pins 17 are inserted from both sides of points 0, 11, and 12. Further, the arcuate surfaces 1 and 2 are extended upwardly, and a collar 20 is provided on both sides of the upper part of the upper piece 5.
21 prevents the band main body from bending outward, making it easier to handle when attaching and detaching. Furthermore, since the elastic cylinders 10, 11, 12 are not exposed on the surface of the band due to the adjacent flanges 20, 21, the appearance is good. Incidentally, since such a flange is not formed in the lower part of the upper piece 5, the adjacent upper pieces 5, 5 can be rotated inward by approximately 90 degrees, and therefore the band body can also be bent inward. Therefore, the best form of the solid piece in the present invention is the upper piece 5.
As shown in Fig. 1, the front surface is almost an inverted trapezoid, and the opposite sides that are not parallel are defined as arcuate surfaces 1 and 2, and the arcuate surfaces 1 and 2 are extended upward and a part of the opposite sides are parallel. to form the guards 20 and 21, and also the lower piece 1.
3, if the length of the elastic cylinders 10, 11, 12 is set to 1/3D of the lower bridge width D, it is convenient for manufacturing and balance.

The watch band according to the present invention has the groove 4 of the upper piece 5.
The portion of the lower piece 13 other than the elastic tubes 10, 11, and 12, that is, the base 18, is tightly fitted and fixed by spot welding. In addition, if the width of the groove 4 is also formed to have approximately the same width as the lower piece width D, the lower piece 1
3 are legs 22 and 23 provided by forming the groove 4;
This restrains the play and allows for a more solid structure, helping to prevent so-called wobbling. A perspective view of the piece 19 constructed in this manner is shown in FIG. In other words, since the curves of the elastic tubes 10, 11, 12 and the arcuate surfaces 1, 2 are formed in almost similar shapes, they are in close contact with each other on one side, and a plurality of pieces are connected to form a watch band. In some cases, smooth flexibility. 5 and 6 show how the pieces 19 are connected. That is,
When the aforementioned pieces 19 are placed adjacent to each other, the elastic cylinder 12 formed by the head 9 is connected to the elastic cylinder 10 formed by the legs 7 and 8.
11, and the elastic cylinder 12 of one piece 19
The elastic tubes 10 and 11 of the other adjacent piece 19 are positioned in a straight line. At this time, by inserting the umbrella pins 17 from both sides of the elastic tubes 10 and 11, the plurality of pieces 19 can be interconnected. In other words, the thin end shaft 16 of the umbrella pin 17 is smaller than the direct diameter of the elastic cylinders 10, 11, 12, and
The thick shaft 15 is formed to have approximately the same diameter, and the head 1
4 and the legs 22, 23 are formed to have substantially the same wall thickness d. Therefore, this umbrella pin 17 is attached to the elastic tube 1.
0, 11, and 12, the thin shaft 16 holds the elastic cylinder 12 formed by the head 9 in a free state to ensure flexibility, and the thick shaft 15 holds the elastic cylinder 10, 11 formed by the legs 7, 8. Since the pieces 19 can be closely fixed, the pieces 19 can be interconnected, and the head 14 can also fit between the legs 22 and 23 of adjacent pieces 19 to cover the end faces of the elastic cylinders 10 and 11, thereby increasing the commercial value. Further, since the base 18 of the lower piece 13 is also fitted into the groove 4, the side surface of the connecting member serving as the lower piece 13 is not visible from the outside, resulting in a good appearance and improved appearance quality as a product.

In this invention, a lower piece 13 as a connecting member is integrally provided with elastic cylinders 10, 11, and 12 on a base 18, and has considerable advantages over conventional connecting members using pipes. That is, when using a pipe, the elastic cylinders 10, 11, 1 of the present invention
However, in the present invention, only the base portion 18 is welded once. Furthermore, since conventional pipes have a constant diameter, considerable dimensional accuracy is required when fitting the pipe, and the pipe also has to be caulked when locking the pipe. However, in the present invention, the elastic tubes 10, 1
1 and 12 are formed by curling, and a slit groove 24 is formed in the longitudinal direction, and since this has elasticity like a spring, the thick shaft 15 of the umbrella pin 17 is made to have the same inner diameter as the elastic cylinders 10, 11, and 12. Alternatively, it may be formed to have a slightly larger diameter, making it easier to process both, which helps improve productivity. and,
The pipe welding process requires temporary fixing by spot welding, brazing, oxide film removal treatment after brazing, etc., but in the present invention, simply spot welding is sufficient. In other words, since pipe welding has an arc shape, there are few contact surfaces, but the weld surfaces according to the present invention are mutually flat, have a wide contact surface, are easy to weld, and have high weld strength. In addition, the base 18
Since it fits into the groove 4, there is no need to worry about misalignment like with pipe welding. Further, since each member is easy to manufacture and assemble, it is suitable for mass production and can be provided at low cost.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the upper piece, Figures 2 and 3 are perspective views of the lower piece, Figure 4 is a perspective view of the piece, Figure 5 is a perspective view of the watch band, and Figure 6 is a sectional view showing the linking mode. It is. In the figure, symbols 1 and 2... arcuate surface, 4... groove,
5...Upper piece, 10, 11 and 12...Elastic cylinder,
13...lower piece, 14...head, 15...thick shaft,
16...Thin shaft, 17...Umbrella pin, 18...Base,
19...pieces, 20 and 21...tsuba.

Claims (1)

[Claims] 1. An upper piece 5 having arcuate surfaces 1 and 2 on both sides of a square piece, and a groove 4 provided between both arcuate surfaces 1 and 2 on the bottom surface 3.
Two legs 7, 8 are integrally provided on the lower side of the convex plate 6, and each of the legs 7, 8 and the head 9 are curled upward to form elastic cylinders 10, 11, 12. It consists of a bridge 13, a head 14, and an umbrella pin 17 made up of a thick shaft 15 and a thin shaft 16.The base 18 of the lower bridge 13 is fitted into the groove 4 of the upper bridge 5, and the spot welded bridges 19 are connected to each other. A watch band characterized in that umbrella pins 17 are fitted adjacent to each other and inserted from both sides of elastic tubes 10, 11, 12. 2. The watch band according to claim 1, wherein the arcuate surfaces 1 and 2 are extended upwardly, and flanges 20 and 21 are provided on both sides of the upper part of the upper piece 5.