JPS58115391A - Timepiece - Google Patents

Abstract

PURPOSE:To reduce the overall size of a timepiece by positioning the timepiece hand fitting shaft of a timepiece movement nearly in the center of the circumscribed circle of the timepiece movement with timepiece parts. CONSTITUTION:The timepiece hand fitting shaft 4 of the timepiece movement 1 is made eccentric from the center of the timepiece movement 1 to position the timepiece movement 1 in the center O2 of the circumscribed circle of the timepiece movement 1 with batteries 2. Consequently, a dial 8 is made less in diameter than when the timepiece hand fitting shaft is provided in the center of the timepiece movement as usual, thereby reducing the overall size of the timepiece.

Description

[Detailed description of the invention] This invention relates to timepieces such as wall clocks.

Conventionally, four types of wall clocks have been proposed in which a circular clock movement and a button-shaped battery for driving the movement are attached to the back of the dial. However, the clock movement has a clock hand mounting shaft at its center, and if the batteries are arranged side by side, the radius of the dial is at least the sum of the diameter of the batteries and the radius of the clock movement. Therefore, further miniaturization could not be achieved.

Therefore, an object of the invention is to reduce the size of a timepiece using a circular timepiece movement.

An embodiment of the invention is shown in FIGS. 1 to 3. In the figure, 1 is a circular clock movement, 2 is a circular (bottle-shaped) battery for driving the movement, these are arranged close to each other in parallel, and a thin cylindrical case 3 has an inner diameter equal to the circumscribed circle of both. It is contained within. The case 3 has an annular positioning wall 3a for the hour hand movement 1, and the timepiece movement 1 is fitted into the positioning wall 3a.

The timepiece movement 1 includes a motor, a circuit block, and a gear train. Clock movement 10
The clock hand mounting shaft 4 is eccentric with respect to the center 0□ of the clock movement 1, and is located at the center of the case 3, that is, at the center 02 of the circumscribed circle between the clock movement 1 and the battery 2. An hour hand 5 and a minute hand 6 are attached to the clock hand attachment shaft 4 via bushings 7. 8 is a dial plate that closes one side of the case 3, and has a clock hand insertion hole 8a in the center.

In this way, the clock hand mounting shaft 4 of the clock movement 1 is eccentric to the center of the clock movement 1 and positioned at the center 02 of the circumscribed circle between the clock movement 1 and the battery 2, so that the clock hand mounting shaft 4 of the clock movement 1 is placed eccentrically with respect to the center of the clock movement 1. The dial plate 8 can be formed to have a smaller diameter than in the case where the clock hand mounting shaft is provided at the center, and the entire timepiece can be made smaller.

4 and 15 show other embodiments. That is, the circuit block 9 is housed in the remaining space in the case 3 in which the watch movement 1 and battery 2 are housed. The circuit block 9 has a circuit component 10 and a battery terminal 11 attached to a substrate 9'.

The clock movement 1 has a built-in motor and a gear train. With this configuration, the circuit block 9 is housed in the remaining space inside the case 3 without providing a circuit block inside the watch movement 1, so that the watch movement 1 can be made smaller and more compact. The watch can be made smaller.

The rest is the same as the first embodiment.

In the above embodiment, the battery 2 was arranged in parallel to the clock movement 1, and the clock take-up shaft 4 was positioned at the center O3 of the circumscribed circle. When a timepiece part larger than the battery is used, the timepiece hand mounting shaft 4 is positioned at the center of the circumscribed circle between the part and the timepiece movement 1.

As described above, in the timepiece of the present invention, a circular timepiece movement and the largest timepiece part for driving this timepiece movement are arranged side by side, and the timepiece movement is located approximately at the center of the circumscribed circle between the timepiece movement and the timepiece part. By locating the clock hand drive shaft, the space behind the dial can be used effectively and the watch can be made smaller.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of one embodiment of the present invention, Fig. 2 is a front view thereof, Fig. 3 is a front view of the inside thereof, and Fig. 4 is an exploded perspective view of an embodiment of the present invention. An exploded perspective view of the example, Fig. 5 shows the inside of the
llllr diagram. 1...Clock movement, 2...Battery (#meter parts)
, 3...Case, 4...Clock hand mounting shaft, 5...Hour hand, 6...Minute hand, 8...Dial board, 9...Circuit block, 0...Clock movement Center, 02...
Center of circumscribed circle Figure 1

Claims (1)

[Claims] A clock in which a circular clock movement and the largest hour hand component for driving the clock movement are arranged side by side, and the clock hand mounting shaft of the clock movement is located approximately at the center of a circumscribed circle between the clock movement and the separately listed clock component. .