JPH11146804A - Band with spring bar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a spring bar from being lost by facilitating the attaching and detaching between with a watch. SOLUTION: At this band 1, an end piece 3 with the insert-fitting hole 3b of the spring bar 4 is attached to a tip part on the watch attaching side of the band 1 and a stage expansion hole part 3C is provided on one tip side of the insert-fitting hole 3b of the end piece 3. In addition, a slit 3d is provided on the other side to insert-fit the bar 4 with a pulling tool 4a for operation within the hole 3b, the tool 4a for operating the bar 4 is made to appear outside to be slide-operated by the slit 3d and the bar 4 is wrap-fixed into the hole 3b by a C ring 5 force-fitting into the part 3c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band with a spring bar, and more particularly to a band which can be easily attached to and detached from a timepiece and does not lose the spring bar.

[0002]

2. Description of the Related Art As shown in FIGS. 3 (a) and 3 (b), a conventional band is such that a spring bar is inserted into an insertion hole of an end piece of a band or a transverse hole provided at an end of the band, and the spring bar is compressed. It has been attached and removed between the legs of a watch using a special jig for operation.

[0003]

However, a special jig is required for attaching and detaching the band to and from the timepiece, making it difficult to replace and attach the band. Further, when the band is detached from the timepiece, the spring bar also comes off. In addition, there is a problem that a thin and small spring rod is often lost.

[0004]

According to the present invention, an end piece having an insertion hole for a spring bar is attached to the end of the band on which the watch is mounted, and a step-expanding portion is provided at one end of the insertion hole for the end piece. And a slit is provided on the other side, and a spring bar with a pull for operation is inserted into the insertion hole, and the pull for operation of the spring bar is slidably moved outward from the slit. This problem is solved by exposing the spring bar in the insertion hole with a C-ring that is press-fitted into the step expanding hole.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS At the end of a band 1 on the side where a watch 2 is mounted, a band-shaped end piece 3 of the band 1 is mounted.
The end piece 3 is formed with an insertion hole 3b for a spring rod 4 having both ends opened in an outer straight shaft portion 3a, and a step-expansion portion in which the diameter of the insertion hole 3b is increased by one end at one end of the insertion hole 3b. 3c, and a slit 3d for splitting the straight shaft portion 3a is provided on the other side. Insertion hole 3b
A spring bar 4 having an operating puller 4a is inserted therein. Puller 4a
Is exposed to the outside that can be operated from the slit 3d, and the step expanding part 3c
The inside diameter of the spring rod 4 is made slightly smaller than that of the spring rod 4, and the C-ring 5 is pressed into the inner wall of the step enlarged hole portion 3 c by press-fitting the spring rod 4 and the end piece 3 is inserted. It is held and fixed in the hole 3c.

When attaching the band 1 to the watch 2, the puller 4a is used.
As shown by the dashed line in FIG. 2, slide to the compression side, insert it between the legs 2a, 2b of the watch 2, insert one end into the stop hole 2c, and then release the compression of the pulling tool 4a. As shown by the solid line 2, the other end is resiliently fitted into the stop hole 2d and attached. When the band 1 is removed from the watch 2, the puller 4a is slid to the compression side and one end of the spring bar 4 is inserted into the stop hole 2d. Then, the other end is pulled out from the stop hole 2c and removed.

Although the slit 3d and the operation pulling tool 4a are located on the surface of the end piece 3 which does not touch the skin, they may be provided at a position that is not viewed from the outside.

[0008]

As described above, according to the present invention, since the operating pulling device is attached to the spring bar and is exposed through the slit provided in the insertion hole of the end piece, the band requires a jig having a special shape. The band can be easily attached to and detached from the watch without the need for easy replacement of the band. In addition, the spring bar is wrapped and fixed with a C-ring for press-fitting the band, and the insertion hole is used when removing the band from the watch. Since the pull-out does not occur, the spring bar can be prevented from being lost.

[Brief description of the drawings]

FIG. 1 is a perspective view of an end piece portion showing a spring bar and a C-ring before insertion.

FIG. 2 is a perspective view showing a state in which a band with a spring bar is being attached to or removed from a watch-side leg rod.

3A and 3B show a conventional example, in which FIG. 3A is a perspective view of a back surface of an end piece mounting type, and FIG. 3B is a perspective view showing an end piece of a band in which an insertion hole is formed.

[Explanation of symbols]

 1 is a band 2 is a watch 2a, 2b is a leg rod 2c, 2d is a stop hole 3 is an end piece 3a is a straight shaft portion 3b is an insertion hole 3c is a step expansion hole 3d is a slit 4 is a spring rod 4a is a puller 5 C ring

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yohei Maruyama 2-4-4 Sotokanda, Chiyoda-ku, Tokyo Inside Orient Watch Co., Ltd. (72) Inventor Kaoru Shimizu 2-4-2 Sotokanda, Chiyoda-ku, Tokyo No. Orient Watch Co., Ltd.

Claims (1)

[Claims] 1. An end piece having an insertion hole for a spring bar is attached to an end of the band on the timepiece mounting side, a step-expanding hole is provided at one end of the insertion hole of the end piece, and on the other side. A slit is provided to insert a spring rod with a pulling rod for operation into the insertion hole, and the pulling rod for operating the spring rod is exposed to the outside so as to be slidable from the slit. A band with a spring bar, wherein the spring bar is held and fixed in the insertion hole by a C-ring that is press-fitted into the widened portion.