JPH0525451Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention relates to a bifold metal fitting for a watch band.

<Problems to be solved by this invention> Conventionally, bi-folding metal fittings for watch bands of the type in which one plate body is inserted into the hollow part of the other plate when folded based on the pin connection part, Since uneven hooking mechanisms were provided at points relative to each other between the two plates, there was a problem that they could no longer be hooked due to wear and tear due to repeated use. Furthermore, since the bi-folding metal fitting does not have a length adjustment mechanism, it is difficult for people with thick wrists to use it.

<Structure of the invention> The invention consists of an elongated frame body 1 and an elongated plate body 2 which are connected to each other so that they can be folded and unfolded with a connecting pin 11 in between, and the elongated frame body 1 has V-shaped grooves on both inner edges in the longitudinal direction. 4a, 4b, and V-shaped protrusions 14 on both sides of the middle part of the elongated plate body 2, which engage and detach from the V-shaped grooves 4a, 4b.
a, 14b, and a resilient split groove 12 that opens on the connecting pin 11 side is provided in the center between the V-shaped protrusions 14a, 14b, and on the side opposite to the connecting pin 11 of the elongated frame 1. This problem is solved by fixing a slide piece 5 for adjusting the length of the band, which has a band mounting tube at the upper end, on a lower plate 8 provided in the lower half of the inner side of the end.

<Example> Examples will be described below based on the drawings.

V-shaped grooves 4a and 4b are provided on both inner edges of the elongated frame body 1 in the longitudinal direction facing the intermediate gap 3, and one end of the elongated plate body 2 constituted by the width of the intermediate gap 3 is provided at one end of the elongated frame body 1. A connection pin 11 that is inserted and inserted transversely connects them so that they can be folded and unfolded. The elongated plate body 2 is formed to be slightly shorter than the elongated frame body 1, and is provided with a spring groove 12 that opens on the connecting pin 11 side in the middle, and a spring groove 12 is provided in the middle between the elastic plate parts 13a and 13b on both sides. V-shaped protrusions 14a, 14b that engage and detach from the V-shaped grooves 4a, 4b
has been established. A lower plate 8 is fitted into the inner lower half of the end opposite to the connecting pin 11 of the elongated frame 1 and fixed by welding or the like, and V-shaped grooves 4a, 4 are formed on both sides on the lower plate 8.
A slide piece 5 having a band attachment cylinder 6a at its upper end is fitted into the upper half of the band b. The slide piece 5 has two screw holes 7a and 7b for switching at the inner and outer points spaced apart.
5A and 5B, one of the screw holes 7a and 7b is switched to face the screw hole 9 of the lower plate 8, and fixed by fastening with a screw 10. The length can be adjusted to large or small.

In addition, 6b in the figure is a band mounting tube provided on the outer end of the elongated plate body 2 on the opposite side to the connecting pin 11, and like the band mounting tube 6a of the slide piece 5, the mounting tube 6c of the watch bands 15a and 15b, respectively. , 6d, and are connected by inserting and fixing the pin 16.

When the elongated plate body 2 is rotated and folded based on the connecting pin 11, the elongated plate body 2 closes in the intermediate gap 3 of the elongated frame body 1.
The V-shaped protrusions 14a and 14b elastically hook into the V-shaped grooves 4a and 4b to maintain the folded state, and unfold when the elongated plate 2 is pulled up against the elasticity of the hooks. It happens.

When adjusting the length of the watch band, press the fifth button.
As shown in Figure B, the slide piece 5 of the elongated frame body 1 is drawn out and fixed by changing the screw 10.

<Effects of the invention> As described above, in the present invention, in the elongated frame body and the elongated plate body that are folded and unfolded with the connecting pin in between, a split groove for elasticity is provided in the middle of the elongated plate body. When folding, the V-shaped protrusion snaps into the V-shaped groove and does not fall off unnecessarily, and its elastic action reduces wear and tear of the V-shaped protrusion and V-shaped groove as much as possible when folding the product. It produces the effect of being able to do something.

In addition, since a slide piece for adjusting the length of the band is provided at the end of the elongated frame, the length of the band can be adjusted by adding an extension adjustment function to the bi-folding metal fitting with a simple configuration. This effect is produced.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the watch band using the bi-folding metal fitting of the present invention in a folded state, Fig. 2 is a front view of the same, and Fig. 3 is an enlarged view showing the bi-folding metal fitting and the band separated by component. Developed perspective view, FIG. 4 is a vertical sectional view showing the V-shaped protrusion in a hooked state, FIGS. 5 A and B are vertical sectional views showing the screwed state of the slide piece, 1 is an elongated frame body, 2 is an elongated plate body, 3 is the intermediate gap, 4a, 4
b is a V-shaped groove, 5 is a slide piece, 6a, 6b are band mounting tubes, 7a, 7b, 9 are screw holes, 8 is a lower plate,
10 is a screw, 11 is a connecting pin, 12 is an intermediate groove, 13a, 13b is an elastic plate part, 14a, 14b
is a V-shaped protrusion, 15a and 15b are watch bands, 16
is a pin.

Claims (1)

[Scope of utility model registration request] It consists of an elongated frame body 1 and an elongated plate body 2 which are foldably and unfoldably connected with a connecting pin 11 in between, and V-shaped grooves 4a, 4b are provided at both inner edges of the elongated frame body 1 in the longitudinal direction.
On the other hand, V-shaped protrusions 14a and 14b that engage and detach from the V-shaped grooves 4a and 4b are provided on both sides of the middle part of the elongated plate body 2, and a connecting pin 11 side is provided in the center between the V-shaped protrusions 14a and 14b. A split groove 12 for opening is provided, and a band mounting tube is provided at the upper end of the lower plate 8 provided in the inner lower half of the end opposite to the connecting pin 11 of the elongated frame 1. A bi-folding metal fitting for a watch band, characterized in that a slide piece 5 for adjusting the length of the band is fixed.