JPH0299888A - Compound display electronic timepiece - Google Patents

Abstract

PURPOSE:To enable concurrent provision of excellent design and functions as compound timepiece by opening and closing a display window of a digital display device provided on a dial plate with a pictorial plate for a function display provided on an electronic timepiece. CONSTITUTION:In normal carrying use, a calendar display is given to a calendar window 6 of a dial plate 5 with a day plate 7 and a week plate 8. Under such a condition, when a crown 11 is pulled out to a position A2 to be turned counterclockwise at this position, a week star gear is turned by only one tooth and an opening part 8a of the week plate 8 is turned to the position of the window 6. This makes a digital display device 10 visible at the window 6 through the opening part 8a of the week plate 8 and a shift is made to a compound display mode. Then, the crown 12 is pulled out to the position B2 and turned to control and correct display contents of the device 10. When the crown 11 is pulled out to the position A2 and turned counterclockwise again to correct the day of week, a calendar display mode comes back. When the crown 11 is put back to the position A1 without correction of the day of week, the opening part 8a is always driven to the position of the window 6 to maintain the compound display mode.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a composite display timepiece with improved design.

[Conventional technology]

Traditionally, there have been two types of electronic watches: pointer display type electronic watches with excellent design, and digital display type electronic watches with excellent multi-functions, but in recent years, composite display types that combine the advantages of both types have been introduced. Clocks have been commercialized and have become popular. This composite display watch has a display window with a digital display placed on a part of the dial of the pointer display device, so that the time display, which is the main function of the watch, is performed by the well-designed pointer display device. Additional functions such as a calendar and alarm are displayed on a digital display device.

However, although the above-mentioned composite display watches have been highly evaluated in terms of functionality, in terms of design, they are still inferior to electronic watches with pointer display systems, since the color tone within the display window formed on the dial is Since the digital display device made of dark liquid crystal cells is visible, the overall image is dark, and the lack of elegance prevents it from being used in high-end products.

Therefore, the reality is that composite display watches are currently only used in watches that are of intermediate quality or lower.

The present applicant has proposed a composite display electronic timepiece which solves the above-mentioned drawbacks in Japanese Patent Application No. 63-68257.

The gist of the above prior application is as follows.

It has a reference oscillation circuit, a timing signal generation circuit, a motor drive circuit, a pulse motor, a pointer display device that is rotated by the pulse motor, and an electro-optical display device in a display window formed on the dial. In the multi-display electronic timepiece equipped with the electro-optical display device, a display window section of the electro-optical display device is provided with a lid that can be opened and closed, and the electro-optic display device is made visible only when necessary by opening and closing the lid. be.

[Problem to be solved by the invention]

However, although the configuration of the prior application is fully satisfactory in terms of design, there is a problem in that it requires a special provision of a lid and also a special provision of a drive mechanism, resulting in an increase in cost.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a multi-display timepiece with excellent design without the need for a special lid or drive mechanism.

[Means to solve the problem]

The gist of the present invention to achieve the above object is as follows.

A pointer display device comprising a pointer and a dial plate, a display window provided on the dial plate, and an iron plate arranged on the lower surface of the dial plate and configured to rotate in synchronization with the pointer, In an electronic watch that displays characters or designs on a steel plate on a window, a digital display device is disposed on the lower surface of the display window provided on the dial, and an opening is provided in a part of the iron plate, and the iron plate It is characterized by displaying a digital display on the display window at a specific rotational position.

Further, the iron plate is a calender plate.

Furthermore, the iron plate is a day plate, and seven openings are provided between seven day of the week characters.

〔Example〕

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

1 and 2 are a plan view and a partial sectional view of a module of an electronic timepiece according to the present invention, and FIGS. 3 and 4 are plan views of an electronic timepiece equipped with a calendar plate as an iron plate of the present invention. 3 shows the pointer display state, and FIG. 4 shows the composite display state.

In FIGS. 3 and 4, 1 is an electronic watch, and a display section 2 includes a pointer display device including an hour hand 3, a minute hand 4, and a dial 5, and a calendar window 6 formed on the dial 5 as a display window.
In the pointer display state shown in FIG. 3, a calendar plate consisting of a day plate 7 and a day plate 8 is disposed within the calendar window 6 to provide a well-known calendar display.

In the composite display state shown in FIG. 4, a digital display device 10 is displayed in an opening 8a provided in the day plate 8 within the calendar window 6.

Reference numeral 11 denotes an IJ n-z for adjusting the pointer, and as described later, by rotating clockwise from the normal position A1 to the one-step pullout position A2, the date 7 can be quickly adjusted, and by rotating it counterclockwise, the day plate 8 can be adjusted. Make quick corrections. Further, the hour hand 6 and minute hand 4 are corrected by rotating them at the second pull position A3. 12 is an IJ for modifying the digital display device 10;
For example, by rotating from the normal position BIK, the display function on the digital display device 10 is switched, and by rotating from the one-step pull-out position B2, the displayed content is modified.

FIG. 1 shows a calendar plate which is an embodiment of the iron plate of the present invention, in which a date plate 7 and a day plate 8 are arranged in the circumferential direction, similar to a conventional electronic watch having day and day display functions. Its drive mechanism and correction mechanism are similar to those of conventional electronic watches.

In particular, regarding the drive and correction mechanism of the day plate 8,
This configuration is approximately the same as that disclosed in Japanese Patent No. -26020. In other words, the day of the week is printed alternately in Japanese and English letters on the day board, and in normal driving, the day star wheel is advanced two teeth per day to display one day of the week and change the letter of the day of the week. If you want to use the external operating member (in this example, IJ
, L-Z 11) When the day star wheel is advanced by one tooth, it switches to the other day of the week character, and thereafter the other day of the week is displayed.

The difference between Japanese Patent Publication No. 43-26020 and the present invention is that there is only one type of day of the week character printed on the day plate 8 (
In this embodiment, seven openings 8a are provided between the seven day-of-week letters.

Next, Figure 2 shows the dial 5, day board 8, and digital display device 10.
FIG. 2 is a cross-sectional view of main parts showing the relationship between the two, and illustrations and explanations of known members are omitted.

20 is a base plate, 21 is a support member, and each train wheel is supported between these members. 22 is the center car, 26 is the day car, 24
1 is an hour wheel, and as is well known, the hour hand 6 is a day dial, and the day dial 28 drives the date dial 7. Further, 29 is a day star wheel, which is integrated with the day plate 8 and driven by the day time pawl 28.

The digital display device 10 also includes cell support members 64 and 6.
5, so that its display surface is located at the calendar window B provided on the dial plate 5. When the opening 8a of the day board 8 shown in FIGS. 1 and 2 coincides with the display window 6 of the dial 5, a composite display state in which the digital display device 10 is visible is established.

Next, the operation of the electronic timepiece 1 having the above configuration will be explained. Normally, as shown in Figure 3, when carried, the calendar window on the dial 5 displays a calendar with a date plate 7 and a day plate 8, and can be carried as an electronic watch with an excellent design and a pointer display system. I can do it.

From this state, as shown in Fig. 4, pull out the crown 11 one step to position A2, and in this position, turn it counterclockwise, causing the day star wheel 29 shown in Fig. 2 to rotate by one tooth. The opening 8a of the day plate 8 rotates to the position of the calendar window 6.

As a result, the digital display device 10 becomes visible in the calendar window 6 through the opening 8a of the day board 8, and the display is switched to a composite display state. And as shown in Figure 4, crown 1
2 to the position B2 and rotated, the display contents of the digital display device 10 can be controlled and corrected.

From the composite display state shown in FIG. 4, it is possible to return to the calendar display state shown in FIG. AI without modification
When it is returned to the position shown in FIG. 1 and FIG. 2, the seven openings 8a of the day plate 8 are always driven to the position of the calendar window O by the day-time claws 28, so that the compound display state is maintained. maintain.

As mentioned above, in this embodiment, an opening is provided in the day plate as a test plate, but the configuration is not limited to this. For example, an opening is provided in a part of the date plate as a test plate. ,
The display state may be switched to the composite display state by clockwise rotation of the IJ) lens 11, and an opening may be provided in a part of the moon phase display board as a test board.

〔Effect of the invention〕

As described above, according to the present invention, the display window of the digital display device provided on the dial is opened and closed by the function display test plate provided in the electronic watch, so that the pointer with function is displayed when normally carried. It is possible to have both the design of an electronic timepiece and the functionality of a multiple display timepiece, which will have a positive effect on the advancement of multiple display timepieces.

In addition, since the above configuration doubles as the test plate for function display that is provided in advance as the lid of the digital display device, there is only a slight increase in cost, and furthermore, as in this embodiment, the day plate can also be used as the test plate. By doing so, it became possible to select between a constant calendar display and a constant composite display, thereby significantly increasing functionality.

[Brief explanation of drawings]

The drawings all show an embodiment of the electronic timepiece according to the present invention, and FIGS. 1 and 2 are a plan view and a partial sectional view of the module with the case removed, and FIGS. 3 and 4 show the external appearance. FIG. 1...Electronic clock, 5...Dial board, 6.
...Calendar window, 8...Day plate, 8a...Opening, 10...Digital display device. Patent applicant Citizen Watch Co., Ltd. Hana

Claims (3)

[Claims] (1) A pointer display device consisting of a pointer and a dial, a display window provided on the dial, and a picture board arranged on the lower surface of the dial and configured to rotate in synchronization with the pointer. In an electronic clock that displays characters or designs on a picture board on the display window, a digital display device is disposed on the lower surface of the display window provided on the dial, and an opening is provided in a part of the picture board. 1. A composite display electronic timepiece characterized in that a digital display device displays a display on a display window at a specific rotational position of the picture plate. (2) A composite display electronic timepiece characterized in that the picture board according to claim 1 is a calendar plate. (3) A composite display electronic timepiece, wherein the picture board according to claim 2 is a day board, and seven openings are provided between seven day of the week characters.