Timepiece

Abstract

The invention provides a timepiece, specifically a fixing structure of a case, a glass outer ring, a rear cover and a timepiece body, which realizes high efficient utilization of space and thinning of the case, the glass outer ring and the rear cover. The timepiece comprises a timepiece body (1), a case (2), a glass outer ring (4) fixed to the case, and a rear cover (5), wherein the case has a plurality of timepiece body fixing parts (211) fixing the timepiece body through screws; a plurality of outer ring fixing parts (214), fixing the glass outer ring through the screws; and a plurality of rear cover fixing parts (215) fixing the rear cover through the screws, the screws respectively arranged on the timepiece fixing part, the outer ring fixing part and the rear cover fixing part are approximately along the axis of the case, the timepiece fixing part, the outer ring fixing part and the rear cover fixing part are respectively arranged on different positions of circumference of the case, and arranged on an approximately similar fixed reference position opposed to the timepiece body and the case.

Description

Technical field [0001] The present invention relates to timepieces, in particular to exterior parts such as housings, glass bezels, back covers and the fixing structure of the timepiece body. Background technique [0002] Such as Picture 10 As shown, in a conventional timepiece, particularly a timepiece with good waterproof performance, the glass outer ring 94 is generally pressed into the upper end edge of the housing 92 in a state where the ring-shaped resin gasket PK is sandwiched. The resin gasket used for the glass outer ring is harder than the rubber gasket, and it is used not only as a waterproof part, but also as a fixing part for fixing the glass outer ring to the housing. In addition, such as Picture 10 As shown, as a fixing structure for the back cover of a waterproof timepiece, there is known a structure in which a screw-shaped back cover 95 with threads engraved on the outer periphery is screwed into the lower end edge of the housing 92. In addition, there are case...

AI Technical Summary

Problems solved by technology

[0006] In addition, when the back cover is a spiral structure, in order to engrave threads on the back cover and the casing, the back cover and the casing need to have a predetermined wall thickness and a predetermined thickness (dimension in the thickness direction of the watch), so It has to cause the back cover and case to become thicker and larger

[0007] Therefore, in the conventional fixing structure of the glass bezel, the clock body, and the back cover, since the entire circumference of the glass bezel, the entire circumference of the clock body, and the entire circumference of the back cover are used for fixing, they cannot be arranged neatly (なまりよく ) to configure these fixing structures, so there is such a problem: the shell exceeds the thickness and diameter required for the fixing strength, and excess parts will be produced on the shell

[0008] In this way, since the glass bezel, the back cover, and the watch body use different fixing units, the glass bezel, the back cover, and the case are respectively thickened, resulting in an increase in the size and weight of the watch.

In addition, there is a problem that the glass outer ring, the back cover, and the fixing unit of the watch body need to be designed separately. In the structure in which the back cover is fixed with screws (Patent Document 1), there is no way to increase the size of the watch to a certain extent.

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