JPS583538Y2 - watch band clasp - Google Patents

Description

[Detailed description of the invention] This invention provides a new middle clasp for a watch band, and will be explained in detail with reference to the attached drawings. Cover 3 on one intermediate piece 2 and band attachment member 6 that comes in contact with the bottom of cover 3
A half-piece metal fitting 7 is fixed to a pivot 8.

The band attachment member 6 has a protruding prismatic portion 5 with a stopper hole 4 on the front surface, and a four portion 16 on the rear surface that engages the convex portion 18 of the band 17 and is fixed together with the pivot 8. It has become.

A separate metal fitting 12 consisting of side plates 9, 9' and a band attaching member 11 extending between the side plates 9, 9' is attached to the other intermediate piece 2' in contact with the other intermediate piece 2'.

A square groove 10 capable of receiving the above-mentioned square column part 5 is provided on the front surface of the band attachment part 11, and a recessed part 19 is provided on the rear face, and the convex part 21 of the band 20 is engaged with and the shaft 22 is fixed.

A stopper 1 has a spring coil spring 13 wound between the side plate 9 and the square groove 10, and an operating knob 14 attached to the outer end.
5 is inserted.

With the above configuration, when the operation knob 14 is pulled to the temporary line position and one half of the metal fittings 7 are covered, the square column part 5 is moved to the square groove 10.
When the handle of the knob 14 is released, the stopper 15 moves forward under spring pressure and fits into the stopper hole 4 to fix the square column part 5.

Also, if the tip of the stopper 15 is tapered,
The prismatic portion can be elastically fitted without pulling the knob 14.

In this way, according to the present invention, the metal fittings can be brought into contact and separated by moving the stopper 15 in and out, and when separating them, the intermediate pieces 2, 2
The addition of the opening centered on the pivot 1 of '' has the effect of making it extremely easy to remove and reattach the watch band to the wrist.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the metal fittings separated from each other, Fig. 2 is a cross-sectional plan view of the connected state, 1 is a pivot, 2, 2' are intermediate pieces,
3 is a cover, 4 is a stopper hole, 5 is a protruding prismatic portion, 6 is a mounting member, 7 is a half metal fitting, 8 is a pivot, 9.9' is a side plate, 10
11 is a square groove, 11 is a mounting member, 12 is a foreign metal fitting, 13 is a coil spring, 14 is an operating knob, and 15 is a stopper.

Claims (1)

[Scope of utility model registration request] One half consisting of intermediate pieces 2, 2' which are connected by sandwiching the pivot 1, and a band attachment member 6 having a protruding prismatic part 5 with a stopper hole 4 in contact with the cover 3 and the bottom of the cover 3 on one of the intermediate pieces 2. A metal fitting 7 is fixed to a pivot 8, and a band mounting member 11 is provided on the other intermediate piece 2' with a rectangular groove 10 for receiving the protruding prismatic portion 5 between the side plates 9, 9'. A metal fitting 12 is attached to the contact surface, a resilient coil spring 13 is wound between the side plate 9 and the square groove 10, and a stopper 15 with an operating knob 14 attached to the outer end is inserted. Watch band clasp.