JPS5847866Y2 - watch band clasp - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stopper for a watch band, and particularly to a stopper that combines a so-called three-fold type and a one-size-fits-all type.

In general, the so-called three-fold type fastener has a back plate and a middle plate that are connected to each other so that they can be opened and closed, each pivoted on one end of the band and the lid, and telescopic pins are inserted into a number of holes drilled in the lid. The length of the band is adjusted by shifting the engagement position of the hole and the telescopic pin, so the adjustment range is short.On the other hand, the one-size-fits-all type fastener A locking body that presses and fixes one band is supported on the main frame, and the lid body with the other band attached is held and fixed to the main frame. Since there is no plate, there is a drawback that if the lid and main frame accidentally disengage when worn on the wrist, each band will separate and the watch will fall off the wrist.

Therefore, in order to eliminate the above-mentioned disadvantages of the three-fold type and the one-size-fits-all type, several fasteners have been proposed that combine both types, but in all of these, the locking body and back plate are supported by separate pins. As a result, the main frame became large, making it impractical.

In view of the above points, the present invention provides a small and practical watch band fastening fitting in which the locking body and the back plate are supported by a single pin.

Embodiments of the present invention will be described below based on the drawings.

The main frame 1 has a bottom plate 1a and a side plate 1b formed by standing up on both sides, and a pin 2 is installed on the side plate 1b.

A locking body 3 having a protrusion 3a is rotatably supported on the pin 2, and one band 4 inserted between the locking body 3 and the bottom plate 1a is supported by the protrusion 3a. It is pressed and fixed to the main frame 1, and when changing the fixing position of the band 4 and the main frame 1, rotate the locking body 3 to release the engagement between the protrusion 3a and the band 4, and then, What is necessary is to shift the band 4 to an appropriate position, rotate the locking body 3 in the original direction again, and press and fix the band 4 with the protrusion 3a.

Further, a notch 3b is formed in the locking body 3, and the central part of the pin 2 is exposed through this notch 3b. The end portion 5a is rotatably supported.

A middle plate 7 is pivotally supported on the back plate 5 by a support shaft 6 so as to be freely openable and closable, and a lid body 8 to which the other band 4' is connected is pivotally supported at the end of the middle plate 7.

Furthermore, an engaging tongue piece 7a formed by folding back a part is provided at the end of the middle plate 7, and this engaging tongue piece 7a is inserted into the notch 3b and is inserted into the end of the back plate 5. 5a and can be fixed with snaps, and the back plate 5 and middle plate 7
In order to ensure that the back plate 5 and the middle plate 7 overlap without any gap when folded, a bent part 7b is formed on the middle plate 7 above the pin 2.

To wear the watch band on your wrist, first unfold the back plate 5 and the middle plate 7 and pass it through your arm as shown in FIG. 3, then fold the back plate 5 and the middle plate 7, and is inserted into the notch 3b and snap-fixed to the end 5a of the back plate 5, and the lid 8 is fixed to the main frame 1 as shown in FIG.

In the above embodiment, the band 4 is directly pressed and fixed by the protrusion 3a of the locking body 3, but the band 4 and the locking body 3 are fixed by pressing directly on the protrusion 3a of the locking body 3. The band 4 may be pressed and fixed via a bottom plate placed between them.

As described above, the present invention includes a pin installed on a main frame having a bottom plate and a side plate, a locking body for fixing one band to the pin is supported, and a notch is provided in the locking body so that the pin can be fixed. A lid in which a back plate and a middle plate are connected to each other so as to be openable and closable, and the end of the back plate is pivotally connected to the pin exposed from the notch, and the other band is connected to the middle plate. The body is pivotally mounted, and the middle plate is further provided with an engaging tongue piece that engages with the end of the back plate, and the locking body and the back plate are coaxially connected by the notch of the locking body. The engaging tongue piece of the middle plate is inserted into the notch and is engaged and fixed to the end of the back plate supported on the pin, so that the support and engagement of the locking body and the back plate are prevented. The tongue piece can be engaged and fixed using a single pin, which allows for a long band length adjustment range and makes it possible to make the watch band fastener extremely compact, which is difficult to fall off from the wrist. It is something.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the stopper in a closed state, FIG. 2 is a perspective view of the stopper and the back plate, and FIG. 3 is a perspective view of the stopper in an open state. 1...Main frame, 1a...Bottom plate, 1b...
...Side plate, 2 ... Pin, 3 ... Locking body, 3b ... Notch, 4.4' ...
Band, 5...Back plate, 5a...End part,
7... Middle plate, 7a... Engaging tongue piece, 8...
...Lid body.

Claims (1)

[Scope of utility model registration request] A pin 2 is installed on a main frame 1 having a bottom plate 1a and a side plate 1b,
A locking body 3 for fixing one band 4 is supported on this pin 2, a notch 3b is provided in this locking body 3 to expose a part of the pin 2, and a back plate 5 is connected to the pin 2 so as to be openable and closable. Of the middle plate 7, the end 5a of the back plate 5 is pivotally connected to the pin 2 exposed from the notch 3b, and a lid body 8 connecting the other band 4' is pivoted to the middle plate 7. The watch band stopper further comprises a retaining tongue piece 7a on the middle plate 7 that engages with the end 5a of the back plate 5.