JPS5813556Y2 - Tokeiyou Oshibutonouchi - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a push button device for a watch.

The object of the present invention is to provide a push button device that is easy to assemble, and includes a head for pressing with a finger or the like, a suppressing end for pressing a switch part of an electronic timepiece mechanism, and a push button device for pressing the button with a finger or the like; A rigid ring having an elastic packing fixed to the outer periphery is fixed to the flange portion of the push button body made of rubber or plastic, which has a flange portion having elasticity formed between the push button body and the suppressed end portion. A hole with a step is formed in the shape of the hole.
Insert the push button body into the aperture hole, and press the button 11iIli! J
It is characterized in that the song comes into contact with the stepped portion and the elastic packing is pressed against the inner surface of the throttle hole.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the push button main body 1 includes a head 2 for pressing with a finger, a suppressing end 4 for pressing the switch part 3 of the electronic timepiece mechanism, and the head 2 and the pressing end 4. It has an elastic flange portion 5 formed in the middle thereof, and is made of rubber or plastic.

The flange portion 5 is provided with a rigid ring 7 having an elastic packing 6 fixed to the outer periphery with a groove provided on the outer periphery in order to improve watertightness.
is fixed.

Incidentally, the elastic packing 6 as shown in FIG. 2 may have a semicylindrical cross-sectional shape.

The rigid ring 7 is made of a material that is more rigid than the material of the push button body 1, such as metal.

The side wall 8 on the watch side is provided with a hole 8a and a stepped portion 8b for inserting and fixing the push button device of the present invention.
A push button device is fixed to the inner surface of the push button device via an elastic packing 6 of the push button device.

Next, the operation will be explained. When the head part 2 of the push button body 1 is pressed with a finger, the flange part 5 is deformed, the pressing end part 4 presses the switch part 3 of the electronic timepiece mechanism, and the switch part 3 is operated.

Since the elastic packing 6 is pressed and fixed to the inner wall of the hole 8a by the rigid ring 7, it is held in a fixed position even if the flange portion 5 is deformed.

Since the push button device of the present invention is configured as described above,
Watertightness can be obtained by simply press-fitting and fixing the push button component alone into its mounting hole, and it is also possible to freely press and return the switch section of the electronic timepiece mechanism.

Therefore, the structure of the push button device itself is simplified, and at the same time, the work of assembling it into the watch itself can be extremely simplified, resulting in a significant cost reduction effect.

Further, since there is no need to use special parts such as a fixing ring for fixing the push button parts, the wall thickness of the push button device attachment part on the watch side can be reduced accordingly.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a first embodiment of a push button device for a watch according to the present invention, and FIG. 2 is a sectional view of a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Push button body, 2...Head, 3...Switch part of electronic clock mechanism, 4...Press end part, 5...Flange part,...Elastic packing, 7... Rigid ring.

Claims (1)

[Scope of utility model registration request] A rubber having a head part for pressing with a finger or the like, a pressing end part for pressing a switch part of an electronic timepiece mechanism, and an elastic flange part formed between the head part and the pressing end part. Alternatively, a rigid ring with an elastic packing fixed to the outer periphery is fixed to the flange portion of the plastic push button body, a hole with a stepped portion is formed in the side wall on the watch side, and the push button body is inserted into the throttle hole. A push button device for a timepiece, characterized in that the rigid ring is brought into contact with the stepped portion, and the elastic packing is pressed against the inner surface of the throttle hole.