JPH0112228Y2 - - Google Patents

Description

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

Conventional calendar watches have the disadvantage that the calendar display portion is located within the dial of the watch, making the calendar characters small and difficult to read. Therefore, there have been some watches that have a display board that slides on the back of the watch, a leaf spring fixed to the back of the watch that comes into elastic contact with the back of the display board, and the spring force of the leaf spring connects the watch and the display board. According to this structure, the back side of the movement is covered by the calendar display plate, so the calendar display plate must be removed each time the battery is replaced or the pointer is adjusted, making operations complicated.

The purpose of the present invention is to facilitate operation by allowing battery replacement and hand rotation with the calendar display board still attached.

The feature of this invention is that the calendar display board has an operation hole for battery replacement, etc., and the back cover that holds the calendar display board has a similar operation hole. It's located in a place where the knobs and other parts are exposed.

An embodiment of the present invention will be described. 1st to 3rd
As shown in the figure, a time display section 2 is provided on the front surface of the central portion of a timepiece frame 1, and a movement 3 is fixed to the back surface. A watch back cover 4 is fixed to the back of the frame 1 by screws 5, covering the movement 3. A calendar display plate 6 is held on the back cover 4 so as to be slidable in the longitudinal direction. On the front surface of the calendar display board 6, calendar display characters 7 from 1 to 31 are arranged in the longitudinal direction. Both sides are curved toward the back to form guide grooves 8a and 8b. A latching hole 9 is provided at the upper end, and an operation hole 10 is provided at the lower end. Movement 3 is on the back cover 4
An operation hole 11 is bored at a position opposite to
protrudes so as to come into elastic contact with the back surface of the calendar display board 6. On both sides there are guide pieces 13a, 1 bent in an L-shape so as to be able to enter into the guide grooves 8a, 8b.
3a, 13b, and 13b are formed. Therefore, the calendar display board 6 has guide grooves 8 on both sides thereof.
It is guided by guide pieces 13a, 13b at a, 8b, and its back surface is pressed by pressing parts 12a, 12b, so that it can slide up and down and can stop at any position. A stopper 14 is formed at the lower end of the calendar display board 6 to prevent the clock from accidentally coming off the calendar display board 6 when the clock is relatively lowered when changing the calendar display.

As shown in the first and third figures, a plate 16 having a calendar display window 15 is fixed to the upper rear surface of the back cover 4. In FIGS. 2 and 4, 17 is a needle turning knob, and 18 is a battery storage chamber.

With this structure, for example, when you want to replace the battery or adjust the pointer, slide the calendar display plate 6 upwards as shown in the fourth figure, and align the operation hole 10 with the operation hole 11 on the back cover. When combined,
Since the hand turning knob 17 and battery storage chamber 18 of the movement 3 are exposed, desired operations can be performed in this state.

Note that the operation hole provided in the calendar display board is not limited to the lower end, but may be provided in the upper end at a position communicating with the latching hole.

As described above, according to the present invention, by sliding the calendar display board and overlapping its operation hole with the operation hole on the back cover, the needle turning knob and battery compartment are exposed, so that the calendar display board can be attached. As it is,
The battery can be replaced and the pointer can be corrected, the operation is easy, and the structure is simple, so it can be provided at a low cost.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view, FIG. 2 is a back view, and FIG. 3 is a view of FIG.
The line sectional view and FIG. 4 are rear views during operation. 1...Clock frame body, 3...Clock movement, 4
...Watch back cover, 6...Calendar display board, 7...Calendar display characters, 10, 11...Operation hole, 12
a, 12b...Press portion.

Claims (1)

[Scope of Claim for Utility Model Registration] A calendar display board on which calendar display characters are formed in the longitudinal direction on the front surface and an operation hole is drilled therein, a pressing part that comes into elastic contact with the back surface of the calendar display board, and a clock movement. and a back cover fixed to the back of the watch frame, and the calendar display plate is located between the back of the watch frame and the back cover in the longitudinal direction. A calendar clock characterized in that it is slidably held in a calendar.