JP3326058B2 - 24-hour clock with calendar and its movement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a 24-hour clock with a calendar for displaying days and / or days of the week and a movement thereof.

[0002]

2. Description of the Related Art A clock with a calendar for displaying the day and / or the day of the week is conventionally known (see Japanese Patent Application Laid-Open No. 6-94849). This type of calendar watch is generally
A window is provided in the vicinity of the 3 o'clock or 6 o'clock scale of the dial with the 12 o'clock scale, and a calendar is displayed through this window. In general, a watch has a difference in length between the hour hand and the minute hand,
A configuration is adopted in which the hour hand and the minute hand are distinguished from each other by making the hour hand shorter than the minute hand.

[0003]

In such a timepiece with a calendar, when the hour hand and / or the minute hand overlap with the calendar display window, there is a problem that the calendar becomes difficult to see due to the hour hand and the minute hand. In particular, when the hour and minute hands overlap the window together, that is, when a window is provided near the 3 o'clock scale, when trying to check the calendar at around 3:15, these hour and minute hands hinder the operation. Thus, there is a problem that the calendar is difficult to see. For this reason, conventionally, there are various restrictions in designing a clock, such as making the calendar display window small so that the relatively short hour hand does not overlap, and displaying only the day through this window, for example. Had become.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a calendar-equipped timepiece and a timepiece movement capable of minimizing the difficulty of seeing the calendar caused by the timepiece's hands overlapping the calendar display window. A further object of the present invention is to provide a timepiece with a calendar and a timepiece movement which do not limit the degree of freedom of the shape design of the hour hand, including at least the length of the hour hand, even if the calendar display window is enlarged. Is to do.

[0005]

Means and Effects for Achieving the Object In order to achieve the technical object, the present invention is based on the recognition that the calendar is not confirmed during the bedtime, of course. However, if this recognition is combined with a clock having an hour scale of 1 to 24, based on the idea that at least the hour hand does not overlap the calendar window in the activity time of ordinary people, the following configuration is adopted. Has been adopted.

That is, the dial has a window for displaying a calendar, and assuming a clock or a clock movement for displaying a calendar of the day and / or day of the week through this window, the dial has a 1 to 24 hour scale. In addition, a configuration is adopted in which a calendar display window is arranged near the scale from 24:00 to 6 o'clock.

A typical application of the present invention is a wristwatch or a wall clock, and it is preferable to arrange a calendar display window near the 24 o'clock or 6 o'clock scale mainly from a design point of view. When the calendar display window is arranged near the hour mark at 24:00, the day display and the day display may be arranged vertically. In this case, when the calendar display window is arranged adjacent to the hour scale, the diameter of the date plate indicating the date can be increased, so that the character pitch of 1 to 31 displayed on the outer peripheral portion is enlarged. can do. From the viewpoint of easy confirmation of the time, it is desirable to arrange the 1 to 24 hour scales in the circumferential direction.

Further, it is preferable that both the minute hand and the hour hand are set to have a length extending at least to the vicinity of the hour scale so that the confirmation of the current time can be immediately understood from a distance. In order to clarify the distinction between the hour hand and the minute hand, the width of the hour hand may be larger than that of the minute hand. Even if such a configuration is employed, the hour hand overlaps the calendar display window during bedtime, so that the hour hand does not make the calendar difficult to see at all. If necessary, if the minute hand is made thinner or tapered, the visibility of the calendar when the minute hand overlaps the calendar display window can be further improved.

According to the present invention, 24 hours a day, which is a basic unit of the rotation of the earth and human life, is displayed by one revolution of the hour hand, and is designed on the calendar display of the 24-hour clock. The above flexibility and visibility can be increased.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings, taking an analog electronic wristwatch with a date and day display as an example. FIG. 1 is a plan view of the wristwatch of the embodiment, and FIG. 2 is a view of the wristwatch of FIG. 1 as viewed from the direction of arrow II.

The wristwatch 1 has a rectangular watch case 4 whose upper surface is covered with a glass 2, and a three-hand type watch movement with day and day display function described later is housed inside the case 4. As before, the hour hand and the like can be adjusted by pulling out the crown 5 (see FIG. 2) and turning it. The crown 5 is housed in a recess 4a opened on the side surface and the back surface of the watch case 4, and is normally hidden by the watch case 4 when viewed from above. Since the crown 5 is always invisible from the outside in this way, the design of the watch case 4 can be enhanced and the crown can be cuffed (particularly,
There is no possibility that the clothes will be damaged by being caught on the cuffs of a wool shirt.

The timepiece movement has a dial 6, and the dial 6 is provided with 1 to 24 hour scales on its outer peripheral portion side by side in the circumferential direction. The dial 6 is 2
Below and near the four o'clock scale, there is a substantially square window 8 for displaying the day and day of the week up and down.

The watch movement is, as shown in FIG.
A step motor 10 that rotates 180 degrees every second with a battery and a quartz oscillator (both not shown);
The output shaft of 0 is the second hand 16 through the fifth wheel 12 and the fourth wheel 14.
And the second hand 16 makes one rotation per minute. 4th car 14
Is connected to a minute wheel 20 via a third wheel 18, and a minute hand 22 is attached to the minute wheel 20. Minute hand 22 is 1 hour
Rotate. The minute wheel 20 is connected to an hour wheel 24 via a minute wheel (not shown).
Is installed. The speed reduction ratio formed by the minute wheel and the hour wheel 24 is set to 1/24, whereby the hour hand 2
6 rotates once a day.

Further, as shown in FIG. 4, the timepiece movement is driven by an hour wheel 2 through an intermediate wheel 30 comprising an idle gear.
4 has a date wheel 32 connected to the
Once a day, the date wheel 32 engages the date finger 34 and the day finger 36 with the date plate 40 and the day plate 42 once a day, and intermittently moves the plates 40 and 42 intermittently. Rotate.

As shown in FIG. 5, the date plate 40 and the day plate 42 are arranged concentrically, and the day plate 42 is constituted by a disk having the display of the day at equal intervals on the outer peripheral portion. It is composed of a ring-shaped plate member having 1 to 31 indications at equal intervals around the circumference. FIG. 6 shows a functional block diagram of the three-hand type timepiece movement described above.

In the wristwatch 1 of this embodiment, the hour is displayed at 24:00, and a window for displaying days and days is provided below and near the 24-hour scale, which is a bedtime. Since the 8 is arranged, at least the hour hand 26 and the minute hand 22 do not overlap with each other at the window 8 during the activity time of the general public. For this reason, even if the window 8 is formed large in the radial direction so as to display the date and the day of the week up and down as in the embodiment, the visibility during normal life time will not be affected.

FIGS. 7 and 8 show another embodiment of the present invention. In the description of this embodiment, the first
The same elements as those of the embodiment are denoted by the same reference numerals, and the description thereof will be omitted. The features of the other embodiments will be described below.

FIG. 7 shows a wristwatch 50 according to a second embodiment. In this second embodiment, the hour hand 26 has the second hand 16 and the minute hand 22.
Similarly to the above, it has a length dimension extending to the vicinity of the hour scale. Then, a configuration is adopted in which the hour hand 26 and the minute hand 22 are identified by a width dimension. In this embodiment, the second hand 16
Are constituted by ultrafine hands, the minute hand 22 has a certain width, and the hour hand 26 has a width almost twice as large as the minute hand 22. Note that, in this embodiment, the minute hand 22 is
It is made narrower (relatively thinner) than that of the first embodiment.

According to this configuration, since the hour hand 26 extends to the vicinity of the hour scale, there is an advantage that it is possible to see at a glance what time the hour hand 26 is pointing at from a distance. In addition, since the hour display is changed to the 24-hour display and the window 8 for displaying the day and the day is arranged below and near the 24-hour scale, at least the hour hand 26 is set to the window 8 during the activity time of ordinary people. There is no overlap in the part. In addition, minute hand 2
Since the second hand 26 and the second hand 26 are formed of narrow hands, even if these hands 22 and 26 overlap the window 8, the hands 22 and 26 can easily obstruct the day display and the day of the week display in the window 8. Not be.

FIG. 8 shows a wristwatch 60 according to a third embodiment.
In this wristwatch 60, a triangular arrow portion 16a is provided at the tip of the second hand 16. The calendar display window 8
Is located adjacent to and below the 24-hour scale. That is, the window 8 is arranged at a position farthest from the center of the dial within a range that does not interfere with the hour scale. From this, it is possible to increase the diameter of the date plate 40, and thereby, the number 1 to 31 written on the outer peripheral portion of the date plate 40 can be obtained.
Can be set large. Therefore, the date display can be enlarged horizontally,
Day visibility can be improved. Of course, the width of the window 8 is set to the maximum size as long as the adjacent day display is not exposed.

The embodiments of the present invention have been described above. However, the present invention is not limited to these embodiments but includes the following modifications. (1) A two-hand or three-hand clock with a calendar that only displays the date on the window 8 may be used. (2) The present invention is not limited to a wristwatch, and may be a wall clock or a table clock. In particular, if the present invention is applied to a clock used at a station or an airport, which generally uses a 24-hour display frequently in accordance with the time display at the station or the airport, the window 8 for the calendar display can be set large. Can be
It is practically effective. (3) The date and / or day of the week at the window 8 may be digitally displayed using a liquid crystal panel or an LED.

(4) The timepiece is not limited to an electronic timepiece, but may be a mechanical timepiece. (5) The shape of the minute hand 22 and the hour hand 26, especially the minute hand 22 and the hour hand 26, especially if the minute hand 22 overlaps the window 8 to further improve the difficulty of viewing the date display and the day of the week display. Alternatively, a tapered shape from the longitudinal middle portion to the tip may be adopted.

(6) The calendar display window 8 may be arranged in the vicinity of the hour scale between 24:00 and 6 o'clock, which is the sleeping time of ordinary people.

[Brief description of the drawings]

FIG. 1 is a front view of a calendar wristwatch according to a first embodiment.

FIG. 2 is a side view of the calendar wristwatch as viewed from the direction of arrow II in FIG.

FIG. 3 shows a calendar watch 3 included in the calendar wristwatch of the first embodiment.
FIG. 4 is a partial cross-sectional view showing, in an enlarged manner, a needle driving mechanism of the needle movement.

FIG. 4 shows a calendar watch 3 included in the calendar wristwatch of the first embodiment.
The partial sectional view which expands and shows the Sunday display mechanism part of a needle type movement.

FIG. 5 is a partial front view of a concentrically arranged date plate and day plate extracted and shown.

FIG. 6 is a functional block diagram of a movement of the calendar wristwatch of the first embodiment.

FIG. 7 is a front view of a calendar wristwatch according to a second embodiment.

FIG. 8 is a front view of a calendar wristwatch according to a third embodiment.

[Explanation of symbols]

 1 Wristwatch with calendar 6 Dial 8 Calendar display window 16 Second hand 22 Minute hand 26 Hour hand 40 Date plate 42 Day plate

Continued on the front page (56) References JP-A 4-78590 (JP, U) JP-A 7-181271 (JP, U) JP-A 51-89464 (JP, U) JP-A 53-114263 (JP , U) Fully open 1979-166869 (JP, U) Fully open sho 63-9725 (JP, U) Fully open sho 51-29865 (JP, U) Fully open sho 59-127189 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G04B 19/00 G04B 19/24 G04B 19/247 G04C 3/00

Claims (9)

(57) [Claims] 1. A clock having a calendar display window on a dial, and displaying a calendar of day and / or day of the week through the window, wherein the dial is provided with a time scale of 1 to 24, A 24-hour clock with a calendar, wherein a window for displaying a calendar is arranged near the 24-hour to 6-hour scale. 2. The 24-hour clock with a calendar according to claim 1, wherein the hour scales are arranged side by side in the circumferential direction. 3. The 24-hour clock with calendar according to claim 2, wherein the calendar display window is arranged below a 24-hour scale. 4. The 24-hour clock with calendar according to claim 3, wherein day and day are displayed up and down through the window. 5. A 24-hour clock with a calendar according to claim 3, wherein the clock is a wristwatch. 6. The minute hand according to claim 2, wherein the minute hand and the hour hand of the timepiece both have a length dimension extending at least to the vicinity of the hour scale, and the hour hand has a larger width dimension than the minute hand. The timepiece with a calendar according to any one of the preceding claims. 7. The minute hand has a tapered shape,
The 24-hour clock with a calendar according to claim 6. 8. The watch case has a recess opening on the side and back surfaces thereof, and the crown is housed in the recess, and the crown is not always visible from the front side of the watch case. The 24-hour clock with a calendar according to claim 7. 9. A timepiece movement having a calendar display window on a dial, and displaying a calendar of day and / or day of the week through the window, wherein the dial is provided with a 1 to 24 hour scale, A 24-hour clock movement with a calendar, characterized in that the calendar display window is arranged near the 24 o'clock to 6 o'clock scale.