Wrist watch case

Abstract

To provide a hard wrist watch case having a structure where cracking or chipping incident to attachment / detachment of a spring rod for supporting a watch band does not take place at the leg of a case frame body by enhancing decorativeness and rigidity of the hard wrist watch case through simple alteration of configuration, and having a back lid fixing structure where brazing of a screw bush to the case frame body is not required. An impact resistant metallic decoration component provided with spring rod stop holes at the opposite ends and a screw latch component like a projection piece are fitted, respectively, to a groove and a cavity arranged in the side faces of the case frame body on the three o'clock side and the nine o'clock side, and buried in through holes arranged at the leg of the case frame body such that the stop hole of the spring rod is exposed to the inner wall face of the band fixing space at the leg. When a back lid is fixed, a screw for latching the back lid is screwed into the screw hole of the screw latch component arranged at the cavity of the case frame body thus securing the back lid to the case frame body. Similarly, the spring rod is stretched between the stop holes of the decoration component when a wrist bandis fixed.

Description

technical field [0001] The present invention relates to a watch case, and more particularly to a mounting structure of a band part and a back cover part relative to a case frame body. Furthermore, it is related with the decorative structure for improving the decorativeness of the exterior of a case frame main body. Background technique [0002] In the prior art, it is generally known that the left and right opposite feet are arranged at the relative positions of the main body of the case frame, and the watchband, which is a different body part, is installed between the feet by using a spring bar (see Patent Documents 1, 2). In the watch case, the stop hole for erecting and locking the spring bar is provided on the inner wall surface of each foot on the 12-6 o'clock side of the case frame main body. [0003] Patent Document 1: Japanese Laid-Open Gazette, Japanese Patent Application Laid-Open No. 7-231802 [0004] Patent Document 2: Japanese Laid-Open Gazette, Japanese Pate...

AI Technical Summary

Problems solved by technology

That is, in the installation structure of the rear cover and the case frame body, there is no difference from the screw locking structure of the conventional rear cover using screw bushes, and there are still problems in terms of workability, operability, and cost of the case frame body. unsolved

In addition, if a bending stress is applied to the strap after the spring bar is installed, the force is concentrated on the tabs located at the four corners of the thin plate-shaped back cover, deforming the four corners of the back cover, and causing damage to the screw bushing. risk of adverse effects

[0012] Furthermore, the structure shown in Patent Document 3 is an epoch-making and excellent strap attachment structure with no difference in appearance from the usual hard case structure. However, if the hard case is used as an ornament from the design point of view , is a lack of decorative appearance, and it is difficult to further realize the structure of novel design

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