JPS5817268Y2 - clock - Google Patents

Description

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

Conventionally, some crystal watches having a variable capacitor have a hole drilled in the watch mechanical case for inserting a screwdriver or the like to adjust the speed and speed.

After assembly, this hole was sealed with a seal to prevent dust.

However, this configuration has the disadvantage that it requires a special part called a seal, which increases cost, and requires labor and labor for the process valve to which the seal is attached.

The present invention eliminates the above-mentioned drawbacks, and embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, a front frame 1 and a rear frame 2 constitute a watch frame body.

A dial part 3 is integrally formed on the front frame 1, and a plurality of support columns 4. ...... is installed.

The rear frame 2 has support columns 4, screws 5.・・・・・・
・Fixedly supported.

Further, a watch mechanical body case 6 is arranged on the back side of the dial part 3, and this case is supported by a support column 7.・・・・・・screw 8
．． It is fixed at...

A variable capacitor 9 is built in the machine case 6, and this capacitor is attached to a circuit board 10.

Reference numeral 11 indicates an adjustment screw for the capacitor 9.

Further, a hole 6a for speed adjustment is bored in the upper surface of the machine body case 6 at a position facing the variable capacitor 9.

Insert a screwdriver etc. through the hole 6a and connect the variable capacitor 9.
The adjustment screw 11 can be adjusted.

As shown in FIGS. 1 and 2, the adjustment hole 6a is sealed by the tip of a protrusion 12 that projects from the inner surface of the rear frame 2.

Note that the protrusion is not limited to this example, and may be a cylindrical protrusion 13 as shown in FIG.

14 is a front cover, 15 is a pointer, 16 is a battery, and 1
7 is a lid for attaching and detaching the battery.

Since it has the above configuration, the rear frame 2 is joined to the front frame 1,
This back frame is supported by 4.・・・・・・screw 5.・・・・・・
If it is fixed by ..., the tip of the protrusion 12 can simultaneously seal the adjustment hole 6a, thereby making it possible to achieve dustproofing.

As explained above, according to the present invention, there is no need for a seal as in the past, so costs can be reduced.
Since the step of pasting a sticker is omitted, assembly work can be made more efficient, and a dustproof effect can be achieved with a simple configuration.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a sectional view;
FIG. 2 is an enlarged cross-sectional view taken along the line II in FIG. 1, and FIG. 3 is an enlarged cross-sectional view of a main part of another embodiment. 1...Front frame, 2...Rear frame, 6...
・・Clock mechanical case, 6a・・Holes for speed adjustment, 9・・Variable capacitor, 12, 13・・・
···protrusion.

Claims (1)

[Scope of utility model registration request] A watch mechanism body case is attached to the inner surface of the front frame, and a protrusion is formed to protrude from the inner surface of the rear frame fixed to the front frame toward the back side of the watch mechanism body case, and the tip of the protrusion is A timepiece characterized in that the periphery of the speed adjustment hole, which is bored in the back of the timepiece mechanical body case, is clearly and closely opposed to each other.