JPS5837020Y2 - clock - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a watch.

Conventionally, the upper case and lower case that make up the watch mechanism case have been joined together at multiple points with screws, and the watch mechanism case has been connected, for example, to the back of the dial holder at multiple points on the lower case. All parts are attached with screws.

In this way, using screws to connect or attach all parts increases the number of parts, which has a negative impact on the workability of manufacturing and assembly.

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

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 a 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.

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

On the side (left side) of the watch mechanism storage chamber 4a, there is a lower case 4.
In the drawing, one side plate 7 is shown standing up.

On the outer surface of the side plate 7, an engaging piece 8a, which is a first engaging portion, is provided to protrude laterally.

Also, a support plate 9a is attached along the side plate 7 from the back of the dial holder 2.
is erected, and a locking pawl 10a, which is a first locking portion that removably locks the engagement piece 8a, is formed at the tip of the support plate.

Similarly, according to the illustrated example, a plurality of (two) retaining pieces 8b and 8C are protruded from the outer surface of the side wall 11 of the battery case 4b, and are erected from the back side of the dial holder 2. support plate 9b
, 9c, the locking claws 10b and IOC removably lock each retaining piece.

Therefore, the lower case 4 has supporting plates 9a and 9b on both sides.
and 9C, it is attached to the dial plate 2 by engagement.

Note that the support plates 9a to 9C may be provided protruding from the inner surface of the watch frame body 1 toward the dial holder 2, and the lower case 4 may be attached to the watch frame side in an engaging manner. To explain the coupling means, an engagement piece 12a, which is a second engagement part, is attached to the side edge of the side plate 7 at the open end of the watch mechanism storage chamber 4a, and engagement pieces 12b and 12C are attached to the other side edge. It is protruded in the direction.

Further, pressing portions 13a, 13b, and 13C, which are second locking portions, are formed on both side wall surfaces of the opening end of the upper case 5 toward the lower case 4, and among these pressing portions 13b and 13C are located within the battery case 4b. are doing.

Engagement pieces 12 a , 12 b and 12 of lower case 4
C represents the corresponding pressing parts 13 a , 13 b and 13
The upper case 5 is removably engaged inside the front end (lower end) of C, 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 (left side) of the lower case 4, between the side plate 7 and the pressing part 13a of the upper case 5, a protrusion 14 such as a fixing pin that stands up from the inner surface of the watch frame 1 is press-fitted. It is.

The fixing pin 14 causes the retaining piece 8a of the side plate 7 to be strongly engaged with the locking claw 10a of the support plate 9a due to the pressing force of its outer circumferential surface, and at the same time causes the engaging piece 12a of the lower case 4 to engage with the pressing part 13.
It is firmly engaged with a.

As a result, the lower case 4 is securely attached to the dial holder 2 on the left side of FIG. 1, and is firmly connected to the upper case.

In order to make the connection between the side plate 7 and the support plate 9a more effective, it is desirable that the material of the side plate 7 is flexible and the support plate is made of a rigid body.

Further, on the right side of the lower case 4, the battery 15 housed in the battery case 4b presses the side wall 11 and the pressing portions 13b and 13C laterally with its outer peripheral surfaces on both sides.

Therefore, the side wall 11 is bent on one side, and the retaining piece 8b,
8C is strongly engaged with the support plates 9b, the locking claws 10b of 9C, and the IOC, thereby holding the lower case 4 on the dial holder 2.

On the other hand, the engagement pieces 12 b , 12 of the lower case 4
C is firmly coupled to the pressing portions 13 b and 13 C of the upper case 5, and both the upper and lower cases are strongly coupled.

In this way, both sides of the lower case 4 and both upper and lower cases 4 and 5
Both sides are held by the pressing force of the fixing pin 14 and the battery 15, respectively, but the right side is not dependent on the battery but is connected using screws to connect the upper and lower cases and connect the lower case 4 to the dial holder 2. Installation may be carried out.

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, since the protrusions are used to connect the upper and lower cases and to fix the lower case to the mounting plate, the number of parts can be reduced.
Manufacturing 9 It has great practical effects, such as easy assembly.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional view, and FIG. 2 is a cross-sectional view taken along the line ■■-■■ in FIG. 1. 1...Clock frame body, 2...Dial plate holder, 3
...Watch machine body case, 4...Lower case, 4a...Watch machine body storage room, 7...
・Side plate, 8a...Engagement piece that is the first engagement part, 9
a...Support plate, 10a...Latching claw which is the first locking part, 12a...Engagement piece which is the second engagement part, 13a... . . . A pressing portion which is a second locking portion, 14 . . . A fixing pin which is a protrusion.

Claims (1)

[Scope of Claim for Utility Model Registration] A mounting plate having a support plate having a first locking portion, and a first retainer that engages with the first locking portion on the side of the watch mechanism storage chamber. a lower case having a side plate having a mating portion and forming a second engaging portion on the side plate side of the opening of the watch mechanism body storage chamber; an upper case forming a second locking part for locking the first locking part, a second locking part located between the upper case and the side plate, and the first locking part and the first retaining part; 1. A timepiece, comprising: a protrusion that presses and fixes the second engaging part and the second engaging part with its outer surface.