JPS6027988Y2 - Mobile watch button structure - Google Patents

Description

[Detailed Description of the Invention] Fig. 1 shows the structure of a conventional button portion that has a collar and moves when pressed in the axial direction.

The back cover core 1a is disposed with a gap S to prevent interference with the button collar 2a, and the outer circumference thickness H of the back cover is small and the body thickness CH is large, which is unfavorable in terms of appearance.

The present invention provides a button part structure in which the division position P between the body and the back cover can be raised and the thickness of the body can be made thinner by providing a notch in the button collar to allow the core of the back cover to escape.

The present invention will be explained in detail below with reference to the drawings.

FIG. 2 is a longitudinal sectional view of a watch case showing an embodiment of the present invention.

A button 2 that moves in the axial direction when pressed is attached to a button hole 3a from the inside of the body.

At this time, the button collar 2a contacts the button 2 with the body inner wall 3b.
An outer circumferential surface 2b is provided, and the button 2 is positioned in the button axial direction.

Next, the mechanical body 4 having the springy member 4a is attached to the body 3 from the back cover side, and then the back cover 1 is attached to the body 3 by screwing or the like.

There is a gap between the contact surface 2c of the button 2 with the spring member 4a and the button contact surface 4b of the spring member 4a to prevent interference between the button and the spring member when assembled into the machine body. Set up Q.

Relief shape 2d of back cover core 1a on button collar 2a
, and attach the button so that the side shape 2d is on the back cover side.

FIG. 3 is a view taken along the arrow in FIG.

In this embodiment, in order to prevent interference between the button flange 2a and the back lid core 1a due to button rotation when assembling the back lid, a straight part 2e is provided on the outer periphery above the button flange, and a straight part 2e is provided with a slight gap from the straight part 2e. The section guide wall 3c is arranged on the upper part of the body inner wall 3b, and the button 2
This prevents rotation.

If the guide wall 3c is set larger than the button stroke BS, in a watch where the button stroke is large and the button collar outer circumferential surface 2b moves inward from the inner circumference 1b of the case back core 1a, when the button is operated, the outer circumferential surface 2b of the collar Core inner circumference 1
b can be prevented from interfering.

The present invention provides a watch case button structure with a thin body and excellent appearance, and is highly practical and extremely useful.

[Brief explanation of drawings]

Figure 1 shows a conventional button structure with a stopper brim that connects the button to the body. Figure 2 shows an embodiment of the present invention. Figure 3 is a view taken in the direction of the arrows in Figure 2. 1...Back lid, 1
a...Back cover core, 1b...Inner circumference of back cover core, 2...Button, 2a...Button collar, 2b...Button collar Outer surface, 2C...
...Button contact surface with spring member, 2d...
...button back lid core relief shape, 2e...
... Button collar outer circumference straight part, CH ... Body thickness, H ... Back cover outer circumference thickness, S ... Gap between button collar outer circumference and back lid core, P ... ...Body and back lid division position, 3...Body, 3a...
Button hole in the body, 3b... Inner peripheral wall of the body, 3c...
・・・Button straight part guide wall of body, 4...
Mechanical body, 4a...Spring member, 4b...
・Button contact surface of spring member, Q...plow, trap...button stroke.

Claims (2)

[Scope of utility model registration request] (1) In a button part structure in which a button collar is disposed between the inner wall of the case and an interior member having spring properties, and the button is attached to the watch case so that it can be moved, there is a space between the upper surface of the inner core of the case back. A button part structure of a mobile watch, characterized in that a notch is provided in the brim. (2) Utility model registration Claim In the button part structure according to claim 1, a straight part is provided on the outer periphery of the button collar,
A button part structure of a portable watch, characterized in that the straight part guide wall is disposed on an upper part of an inner wall of the body.