JPH024576Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a clasp structure for a watch band that fixes the middle of the watch band.

Conventionally, a watch band has a clasp attached to one end of the band, a latching clasp attached to the latching clasp at the end of the other band, and a latching clasp attached to the latching clasp at the end of the other band. A restraining metal fitting is attached to elastically hold it in the hung state. When operating the clasp, the user pinches the front cover of the retainer with his fingers, hooks the latch onto the locking bracket, and then pushes the retainer over the latch to secure it.

Therefore, in such a clasp structure, temporary fastening by hooking the latching fitting onto the locking fitting is important for operability. It is required that the latching fitting does not wobble during the hooking operation, and that it is difficult to come off when the latching fitting is hooked onto the locking fitting.

By the way, in the past, the restraining metal fitting and the latching metal fitting were both pivotally connected to a shaft protruding from the end of the band, so the holding metal fitting was difficult to open, and the latching metal fitting could rotate freely and be hooked onto the locking metal fitting. It's difficult. Furthermore, the hook of the latch fitting is freely hooked on the locking rod of the locking fitting in the rotational direction and cannot be positioned in any way, so there is a problem that it easily comes off.

In view of the structural problems of the prior art, the present invention provides a watchband clasp structure that improves the operation of pinching the retaining metal fitting and hooking the latch fitting onto the locking metal fitting. The purpose is to

For this purpose, the present invention is designed such that the hook is integrally attached to the end of the band to prevent it from wobbling, the retainer is rotatably attached to the hook with enough room to open, and the hook of the hook is attached to the hook of the hook. The gist is to position and lock the locking member in a non-rotatable manner on the locking plate of the locking fitting.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. In Figures 1 to 3, reference numeral 1
is a piece at one end of the band, 2 is a piece at the other end of the band, a locking metal fitting 3 is rotatably attached to piece 1, and a latch fitting 4 is integrally attached to piece 2 by welding. A restraining metal fitting 5 is rotatably attached to the latch fitting 4.

The locking fitting 3 has side walls 6a and 6b that stand up on a portion of both sides of the bottom plate 6, and a locking plate 7 is horizontally fixed to approximately the center of the bottom plate by extending between the side walls 6a and 6b. ing. Further, a shaft rod 9 is attached to winding portions 8a and 8b of a shaft holder 8 that is welded to the piece 1 and protrudes therefrom, and a bottom plate side wall 6 is attached to both ends of this shaft rod 9.
The holes 10 of a and 6b are rotatably fitted.

The latch 4 has a metal fitting main body 11 bent in a step-like manner that is integrally welded to the piece 2 and protrudes.
An elongated hook 11a is formed at the tip of the hook 1.

The retainer 5 has downwardly bent side walls 13a, 13b on both sides of the front cover 13, and bearing windings 13c, 13d are provided at the rear end. A snap member 14 bent into a hook shape and given elasticity is welded to the back side near the tip of the front cover 13, and a support member 15 welded to the metal body 11 of the latch 4 is further welded to both sides of the rear end of the support body 15. Projecting shaft portion 15a, 1
The winding portions 13c and 13d of the front cover 13 are rotatably fitted to the cover 5b.

Note that the width between the side walls 13a and 13b of the front cover 13 is equal to the width of the pieces 1 and 2;
The side walls 6a and 6b of the bottom plate 6 are positioned inside the bottom plate 13b without interfering with each other. Further, the bridge 1 and the shaft holder 8, the bridge 2 and the metal fitting body 11, the front cover 13 and the snap member 14, and the metal fitting body 11 and the support body 15 are fixed by, for example, projection welding.

Next, to explain the operation of the clasp configured in this way, first, while holding down the locking metal 3 side of the watch band placed on your wrist so that it does not fall, use your fingers to press the front cover 13 of the clasp 5. When opened, front cover 1
3 is immediately separated from the hook 4 which is integral with the band piece 2, and can be opened approximately 90 degrees upwards and easily pinched. On the other hand, since the hook 4 is fixedly positioned in a horizontal position together with the piece 2, the hook 11a can be attached to the locking plate 7.
At this time, the band curves along the curved surface of the arm, and the locking plate 7 and the hook 11a
Although a rotational force is applied to the hook 11a, the hook 11a is firmly locked to the locking plate 7 without rotating due to the linear locking of the two. After this temporary conclusion,
When the front cover 13 is pushed down with a finger, the snap member 14 elastically engages with the shaft 9 of the locking metal fitting 3, and prevents the locking plate 7 and the hook 11a from coming off together with the front cover 13. Retained.

As described above, according to the present invention, the latch is integrally attached to the band side, and the retainer is attached to the latch with enough room to open, so that the knob of the retainer and the latch can be easily opened. It becomes easy to hook onto the fastener, and the connection structure of this part is simplified. Since the latch fitting and the locking metal fitting are locked by the elongated hook and the locking plate, temporary fastening is stabilized. Furthermore, since the locking metal fittings and the latch fittings are integrally connected to the band side by welding or the like, it can be applied to many types of bands. In addition, since the retainer is pivotally attached to the plate-shaped support 15, it can be manufactured at a lower cost than connecting means using spring bars or pins.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the clasp structure according to the present invention, FIG. 2 is a longitudinal sectional view thereof, and FIG. 3 is an exploded perspective view. 1, 2... Band piece, 3... Locking metal fitting, 4...
...Latching fitting, 5... Holding fitting, 6... Bottom plate, 6a,
6b... side wall, 7... locking plate, 8... shaft holder,
8a, 8b... winding part, 9... shaft rod, 10...
Hole, 11...Metal fitting body, 11a...Hook, 13
...Front cover, 13a, 13b...Side wall, 13
c, 13d... winding part, 14... snap member,
15...Support body, 15a, 15b...Shaft part.

Claims (1)

[Scope of utility model registration request] A locking metal fitting attached to a piece at one band end, a locking plate fixed to the side walls formed on both sides of the locking metal fitting and parallel to the bottom plate of the locking metal fitting, and a piece at the other band end. a latch having a hook at its tip that engages with the locking plate; a support having a shaft on both sides and fixed to the latch; the support body has a U-shaped cross section and is rotatable around the shaft; The present invention is characterized by comprising a retainer attached to the retainer, and a snap member fixed to the back side of the retainer and crimped to a part of the retainer, and the retainer surrounds the retainer when engaged. Nakatome structure for watch bands.