JPS585263Y2 - clock - Google Patents

Description

[Detailed explanation of the idea] This invention relates to watches.

BACKGROUND ART Conventionally, a plurality of upper cases and lower cases constituting a watch mechanical case have all been connected with screws.

Using screws to connect all the joints not only increases the number of parts, but also requires more time and effort in manufacturing and assembling.

The present invention has been proposed in view of this point, and its purpose is to reduce the number of parts and facilitate the assembly of the manufacturing unit.

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

In FIGS. 1 and 2, a dial plate holder 2, which is a mounting plate, is provided on the front side of the watch frame 1, and this dial plate holder also serves as a dial plate in this example.

A watch mechanical case 3 is attached to the back (upper surface) of the dial holder 2 without using screws.

The watch mechanical case 3 is composed of a lower case 4 and an upper case 5.

The lower case 4 is divided by a partition wall 6 into a watch mechanism housing chamber 4a and a battery case 4b.

The watch mechanism storage chamber 4a is connected to the upper case 5 that covers it without using screws.

First, the means for attaching the lower case 4 to the dial holder 2 will be explained.

On the outer surface of the side wall 7 of the battery case 4b, engaging pieces 8a and 8b, which are first engaging parts, protrude laterally (rightward).

Each of the retaining pieces 8a, 8b is removable from the retaining claws 10a, 10b, which are the first retaining parts of the support plates 9a, 9b, which stand upright from the back surface of the dial holder 2 on the sides thereof. is engaged in.

Similarly, an engaging piece 8C is formed on the side plate 11 that stands up from the lower case 4 on the side (left side) of the storage chamber 4a.
This retaining piece is releasably engaged with a locking claw 10C of a support plate 9C which is provided upright on the dial holder 2.

Therefore, the lower case 4 has support plates 9a, 9 on both sides thereof.
It is attached to the dial holder 2 by engagement with b and 9C.

Note that the support plates 9a to 9C may be provided to protrude from the inner surface of the watch frame 1 toward the dial holder 2, and the lower case 4 may be attached to the watch frame in an engaging manner.

Also, to explain the means for connecting the lower case 4 and the upper case 5, the battery case 4 at the open end of the watch mechanism storage chamber 4a
Engagement pieces 12 a and 12 b, which are second engagement parts, are provided on the b side edge.
However, engagement pieces 12C are provided on the other side edges to protrude laterally.

In addition, pressing portions 13 a , 13 b and 1 which are second locking portions are provided on both side wall surfaces of the opening end of the upper case 5 toward the lower case 4 .
3C are formed, among which pressing parts 13a and 1
3b is located inside the battery case 4b.

Engagement pieces 12a, 12b and 13C of lower case 4
The upper case 5 is removably engaged inside the front end (lower end) of the upper case 5, and thus the upper case 5 is coupled to the lower case.

By the way, there is a fixing means for fixing the connection between the upper and lower cases 4 and 5, and at the same time fixing the engagement between the lower case 4 and the support plates 9a, 9b, and 9C to strengthen the attachment of the lower case to the dial holder 2. is the provision.

That is, on one side (right side) of the lower case 4, the battery 14, which is housed in the battery case 4b, presses the pressing parts 13 a and 13 b of the upper case 5 on one side (left side) on one outer peripheral surface.
The lower case engaging pieces 12 a and 12 b are pressed against each other, and the engagement with the lower case engaging pieces 12 a and 12 b is fixed, thereby reinforcing the connection between the upper and lower cases.

The outer peripheral surface of the other side of the battery 14 also presses the inner surface of the side wall 7, and the pressing force fixes the engagement between the engaging pieces 8a, 8b on one side and the locking claws 10a, 10b. .

In order to make the fixing effect effective, the material of the side wall 7 is preferably flexible, and the support plates 9 a and 9 b are preferably rigid.

In addition, on the other side of the lower case 4, the side plate 11 and the upper case 5
A projection 15, such as a fixing pin, is press-fitted between the pressing portion 13C and the pressing portion 13C.

Due to the pressing force of the fixing pin 15, the engagement piece 12 of the lower case 4
C is fixedly engaged with the pressing part 13C, and at the same time the retaining piece 8
C is also firmly engaged with the locking claw 10C of the support plate 9c.

As a result, the fixing pin 15 simultaneously performs the fixed connection of the upper and lower cases 4 and 5 and the attachment of the lower case to the dial 2.

On the left side of the lower case, it is not necessarily necessary to hold the cases 4, 5 and the lower case with the fixing pins 15, and they may be fixed with screws, for example.

The right side of the lower case 4 may also be screwed to the dial holder 2.

In FIG. 1, 16 is a front glass, 17 is a pointer, and 18 is a battery removal lid.

As explained above, according to the present invention, it is possible to minimize the number of screws required to connect the upper and lower cases in the watch mechanical case, and since a battery is used, the number of parts is reduced, and the manufacturing time is reduced. It has the practical effect of being easy to assemble.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a sectional view, and FIG. 2 is a sectional view taken along the line II--II in FIG. 1. 3...Watch machine body case, 4...Lower case, 4a...Watch machine body storage chamber, 4b...
...Battery case, 5...Top case, 6...
...Partition wall, 12...Engagement piece which is an engagement part,
13...Press section, 14...Battery.

Claims (1)

[Scope of utility model registration request] A lower case is divided into a watch mechanism storage chamber and a battery case by a partition wall, and a retaining portion is formed on the partition wall, and the lower case covers the watch mechanism storage chamber and locks the engaging portion. and an upper case forming a locking part, the locking part and the engaging part being pressed together on the outer peripheral surface of the battery within the battery case. When i.