JPH0436467Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a mounting structure for a watch machine body, which is constructed by assembling a watch machine body with upper and lower cases and attaching the watch machine body to a watch case (watch exterior body). Regarding.

(Prior art) Conventionally, in the mounting structure of this type of watch mechanical body, the upper and lower cases are located at different positions from the fitting and locking positions.
The fitting and locking positions of the upper case and the watch case are set, and the number of the fitting and locking portions is set in a large number (three or more). This means that in the case of the conventional mounting structure, each locking part is independent and there is no mutual influence, so only a weak locking force can be exerted. I had no choice but to set it. As a result, the shape of the mold for manufacturing each case becomes complicated, and it becomes necessary to fill in many parts, resulting in a problem that the parts storage space in each case becomes small.

In order to solve this problem, an idea was proposed in Utility Model Application Publication No. 108070/1983 in which one of the inner and outer locking means is a wedge connection and the other is an elastic press-fit connection.

(Problem to be solved by the invention) However, even with this method, the locking ability of the other side will be reduced, and the fitting will come off when an external force is applied, such as when falling. A problem has occurred.

In this way, with conventional known means, including the technology described in the above-mentioned publication, even if a large number of fitting and locking parts are set, the provided fitting and locking parts tend to come off. It was something that would become.

(Means for solving the problem) The present invention was made in view of the above circumstances, and by improving the fitting locking part, it will not come off even when external force is applied, and the fitting locking part will not come off even if an external force is applied. The purpose of this paper is to propose a mounting structure for a watch mechanical body that can perform the same functions as conventional ones by arranging the necessary minimum number of parts.

In order to achieve the above object, the present invention provides a mounting structure for attaching a watch mechanical body, in which an upper case and a lower case are elastically connected to an outer watch case. , a first engaging body extending from a side wall of the upper case and having a stepped portion that can be elastically coupled to the locking body; and a second engaging body that is provided on the watch mechanical body mounting surface of the watch case and that can be elastically coupled to the stepped portion. It consists of a support leg equipped with an engaging body.

(Function) According to the above configuration, the fitting locking portions of the upper and lower cases exert a strong locking force by themselves, and moreover, the fitting locking portions of the upper and lower cases, that is, the watch mechanical body (movement) consisting of the upper and lower cases, Since the fitting locking portions with the watch case are set at the same location, both fitting locking portions act to restrain the other fitting locking portion, and a strong locking force is obtained synergistically. It will be done. As a result, the number of sets of fitting and locking parts to be set is reduced, making it possible to set them only at necessary locations in each case, and the mold for manufacturing each case can also be of a simple shape. In particular, for the stepped portion of the first engaging portion of the upper case,
Since the structure is such that the second engaging portion is engaged with the locking portion having a wedge piece on both the lower case and the watch case, the mold has an even simpler shape.

(Example) The present invention will be explained below based on examples.

FIG. 1 is a front view showing one embodiment, and FIG. 2 is a front view showing one embodiment.
FIG. 3 is an exploded perspective view of the same embodiment as above, and FIGS. 4 to 6 are front views showing other embodiments.

In the figure, 1 is a watch case equipped with a dial (not shown), etc., 2 is a lower case fitted to the watch case 1, and 3 is an upper case fitted to the lower case 2, as shown in the figure. First, the upper case 3 is fitted and locked to the lower case 2 and integrated, and this integrated case, that is, the watch mechanical body (movement)
is fitted and locked into the watch case 1, and the three cases 1, 2, and 3 are fitted and assembled in a triple manner.

A wedge connection is used as a means for interlocking the three cases 1, 2, and 3, and the two inner and outer locking portions are set at the same location in plan view, as shown in the figure.

That is, a wedge piece 4 serving as a locking body is formed on the lower case 2, and a window hole 5 is bored at a corresponding location of the elastic member 3a of the upper case 3 to form a stepped portion 6 serving as a first engaging body. The wedge piece 4 and the step part 6 constitute an inner fitting and locking part 7, and furthermore, an integral support leg 9 is provided upright on the back side of the watch case 1, and a wedge piece 10 is installed inside the support leg 9. and a second engaging body that is elastically deformable;
The stepped portion 6 of the upper case 3, the support leg 9, and the wedge piece 10 constitute an outer fitting and locking portion 11.

The inner and outer fitting locking parts 7, 11 form two wedge connections at the same location as shown in FIG. 2, and a strong locking force is obtained by the synergistic effect of both wedge connections.

The support leg 9 may be divided into two parts as shown in FIG. 4, or may be divided into left and right parts as shown in FIG. Even if the locking portion 11 is wedge-coupled on either the left or right side of the wedge piece 4, sufficient locking reliability can be ensured. In the example, the third
As shown in the figure, double-sided tapered portions 8, 8 are provided at the tips of the elastic member 3a of the upper case 3, so that elastic engagement can be smoothly performed. However, in order to provide similar effects, the back surfaces of the wedge pieces 4 of the lower case 2 and the wedge pieces 10 of the watch case 1 are also tapered.

In addition, in the embodiment, in the fitting and locking portions of the upper and lower cases 2 and 3, the locking body is the wedge piece 4, and the first engaging body is the stepped portion 6, and the configuration is such that they engage with each other in a concave and convex manner. In the present invention, the engagement surfaces of the stepped portion 6 are extended to both sides and wedge pieces are formed separately, so that both of them engage in a so-called convex shape, so that the upper case 3
Of course, the fitting and locking portions between the watch case 1 and the watch case 1 may also have a convex engagement structure.

(Effect of the invention) As explained above, the present invention provides a mounting structure for a timepiece machine body in which a watch machine body is assembled with upper and lower cases, and the watch machine body is attached to the watch case. The locking part is composed of a locking body of the lower case and a first engaging body formed on the elastic member of the upper case, while the fitting locking part between the watch mechanical body and the watch case is formed by the locking body of the upper case. Said first
It is composed of a stepped portion of the engaging body and a wedge piece of the second engaging body of the watch case that engages with the stepped portion. Therefore, according to the present invention, a strong locking force is obtained and the fitting is fast. There are fewer places to set the mating and locking parts, and this makes it possible to provide the mating and locking parts only in the minimum necessary places.Furthermore, the molds for manufacturing each case are correspondingly simpler, which is particularly 1st part of upper case
The present invention has many advantages, such as further simplification because the engaging body is shared.

[Brief explanation of the drawing]

FIG. 1 is a front view showing one embodiment, and FIG. 2 is a front view showing one embodiment.
FIG. 3 is an exploded perspective view of the same embodiment as above, and FIGS. 4 to 6 are front views showing other embodiments. 1... Watch case, 2... Lower case, 3... Upper case, 4, 10... Wedge piece, 6... Step part, 7, 1
1... Fitting locking part.

Claims (1)

[Scope of Claim for Utility Model Registration] In a mounting structure for attaching a watch mechanical body in which an upper case and a lower case are elastically connected to an outer watch case, a locking body provided on the outer surface of the side wall of the lower case, and an upper case. a first engaging body extending from a side wall and having a step portion that can be elastically coupled to the locking body; and a second engaging body that is provided on a watch mechanical body mounting surface of the watch case and that can be elastically coupled to the step portion. A mounting structure for a watch mechanical body, characterized by comprising a supporting leg provided with the following.