JPS5929546Y2 - Connection structure between watch case and band - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connection structure between a wristwatch case and a band.

In a typical wristwatch, the end of the band is connected by a spring bar to a pair of legs called a breech formed on the outer surface of the case.

This connection structure is not only complicated and difficult to assemble, but also expensive.

Furthermore, if the case becomes thinner, it becomes difficult to provide mounting holes for the spring bars on the four gun legs, which is another drawback.

On the other hand, there is a connection structure in which a metal band such as a mesh band is directly fixed to the outer surface of the case by brazing.

This connection structure requires a high degree of skill to attach the gun, and the soldered portion may become unsightly due to rust or discoloration.

The purpose of this invention is to not only simplify the structure and reduce costs by making it easy to assemble, but also to be able to adapt it to thin watch cases, to improve the appearance, and to maintain the appearance of direct connection. To provide a connection structure between a watch case and a band, which allows the band to be replaced and further allows the width of the case between the band attachments to appear narrower.

In order to achieve the above object, the present invention has a groove formed in the transverse direction above and below the tip of the protrusion on the band attachment side of the watch case. The strip is inserted from the side, and the engaging member protruding from the bifurcated lower surface piece of the nose gun is engaged with the lateral movement regulating engaging part formed at the tip of the protruding part of the watch case. It is something to do.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

As shown in FIGS. 1 and 2, grooves 3 are formed in the transverse direction above and below the tip of the protrusion 2 on the band attachment side of the watch case 1.

As shown in FIG. 2, the protrusion 2 is formed so that it becomes thinner toward the end on the band coupling side.

At the center of the tip of the protruding portion 2, a notch 4 is formed on both sides thereof with retaining portions 5 for regulating lateral movement.

On the other hand, the end of the band 6 is connected to the base protrusion 8 of the first gun 7.

The tip of the tip @7 is bifurcated by an upper surface piece 9 and a lower surface piece 10, and a groove 11 is formed inside thereof.

A protrusion 12 is integrally provided on the inside of the tips of the bifurcated upper surface piece 9 and the lower surface piece 10, facing each other.

A screw hole 13 is formed in the center of the lower piece 10.

Then, the protrusion 12 of the first pair of scissors 7 is inserted from the side into the groove 3 of the protrusion 2 of the watch case 1, and the groove 11 of the first pair of scissors 7 is fitted to the front of the groove 3 of the protrusion 2.

At this time, since the protruding part 2 is formed to become thinner toward the band joining end as described above, both the upper and lower surfaces of the protruding part 2 and the tip 7 can be formed into continuous surfaces.

After that, a screw 14 which is a retaining member is inserted into the screw hole 13 of the front chain 7.
, and its inward protrusion is connected to the lateral movement regulating retaining part 5.
, 5, the band 6 and the watch case 1 can be connected.

At this time, it is desirable that the head of the screw 14 be located inside the large diameter hole on the outside of the screw hole 13 so as not to protrude beyond the bottom piece 10.

The tip chain 7 having the shape shown in the figure is particularly suitable for connecting comb-shaped bands, but it can also be used for connecting other types of bands.

Further, in the embodiment described above, the screw 14 is used as the engagement member, but a pin-shaped member may be provided upright.

Further, the lateral movement regulating retaining portion 5 is not limited to a notch, but may be formed by a hole, or may be formed by notching both sides. In this case, the lateral movement regulating retaining portion 5 is formed by a pair of engaging members. What is necessary is just to hold the joining part 5 between them.

As is clear from the above, according to the present invention, the protrusion of the fork in the tip of the tip 1 gun connected to the end of the band is inserted from the side into the groove formed in the protrusion of the watch case, and the protrusion of the fork in the tip of the tip chain is inserted from the side. The band and the watch case can be connected by engaging the retaining member protruding from the lower surface piece with the lateral movement regulating retaining portion formed on the protrusion.

Therefore, the structure is simple, assembly is easy, and it can be provided at low cost.

Furthermore, it can be adapted to thin watch cases.

Furthermore, since the brazed parts cannot be exposed on the surface, the appearance can be improved.

It also maintains a direct connection appearance and allows for a concise design.

Moreover, if the engaging member is made removable, the band can be replaced.

Furthermore, since the tip chain is shaped to grip the protrusion of the watch case, it has the advantage that the width of the watch case between the straps can be made to appear narrower.

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[Brief explanation of drawings]

1 and 2 show an embodiment of the connection structure of the present invention, with FIG. 1 being an exploded perspective view and FIG. 2 being a sectional view of the connected state. 1...Watch case, 2...Protrusion, 3
...Groove, 5...Engagement part for regulating lateral movement,
6...band, 7...tip chain, 12...
...Protrusion, 14...Engagement member (screw).

Claims (1)

[Scope of utility model registration request] Grooves are formed horizontally on the top and bottom of the tip of the protrusion on the band mounting side of the watch case, and a retaining part is provided at the tip of the protrusion to restrict lateral movement, and the end of the band has a tip and a gun. The bases are connected, and the tips of the tip scissors are formed into upper and lower bifurcated shapes, and protrusions are provided on the upper and lower inner sides of the bifurcated tips, and the protrusions of the tip and the grooves of the protrusion of the watch case are aligned side by side. A connection structure for a watch case and a band, characterized in that a retaining member protruding from the bifurcated lower surface piece of the tip scissors is engaged with the lateral movement regulating retaining part when inserted from the front side.