JP3520406B2 - Calendar display and timing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a calendar display device and a timekeeping device incorporated in a wristwatch, a pocket watch, a table clock and the like. More specifically, the present invention relates to a calendar mechanism that mechanically displays the date by rotating a numbered display plate.

[0002]

2. Description of the Related Art As a 31-day repeating calendar display device used in a wristwatch or the like, numbers "1" to "31" are arranged at equal intervals on the circumference of a display plate, and the number is set to 3 times a day.
There is one configured such that the date is displayed from the display window of the clock by intermittently rotating by 1/3 1 of 60 °.

[0003]

However, when as many as 31 numbers are arranged on the outer periphery of the display plate as in this calendar display device, the number becomes smaller than the size of the display plate, so that the date is difficult to see. There is a drawback that.

Therefore, a method of displaying the tens digit and the one digit of the date by using separate display plates can be considered. In this case, one of the two display boards is a tenth display board, and "blank", numeral "1", numeral "2", numeral "3" are arranged at equal intervals. On the other hand, for the other display plate, the numbers "1", "2", "3"
.. "9" and "0" should be arranged in this order. Therefore, since it is sufficient to arrange "blank" for one character and three numbers "1", "2", and "3" on the tens display plate, a large number can be arranged. Therefore, the date can be displayed easily. In such a calendar display device, the display of each digit of the date is carried by the tens place display plate and the 1st place display plate, respectively, so that the tens place feed car and the 1st place feed car that rotate once in 31 days are provided with predetermined numbers. The 10th feed wheel and the 1st feed wheel are formed integrally with the 10th display plate and the 1st display wheel, respectively, by forming the phase teeth, and the 10th driven wheel and the 1st driven wheel are directly or in the middle. By driving through the car
The tenth display plate and the first display plate are fed and driven at a predetermined timing.

However, in the calendar display device thus constructed, the tenth display plate continues to display "blank" for 9 days from "1st day" to "9th day", and then "10".
The number "1" will be continuously displayed for 10 days from "day" to "19th day". That is, the tenth feed car and the tenth driven car, or the tenth feed car and the tenth feed intermediate car are about 1
Since the teeth are only meshed once a day, the tooth forming interval will be abnormal in the tens feed wheel and the tens drive wheel. As a result, the teeth of the tenth driven wheel or the intermediate wheel for tenth feeding that mesh with the tenth feeding wheel are easily removed from between the teeth of the tenth feeding wheel. The intermediate wheel easily rotates due to external impact such as dropping. Moreover, if the teeth forming intervals are abnormal in the tens feed wheel and the tens drive wheel, it is difficult to prevent the displacement of the tens feed wheel and the tens drive wheel by the jumper while the feeding operation is stopped. Is. Therefore, if the number on the display panel is reduced, the date shift, which is called the date skipping, is likely to occur, and the phase shift between the 10th driven vehicle and the 10th feed vehicle will not be possible to display the correct date. There is a problem.

In view of the above problems, the object of the present invention is to
An object of the present invention is to provide a calendar display device that does not cause a day skipping even if the date is displayed with a large number, and a timekeeping device using this display device.

[0007]

In order to solve the above-mentioned problems, according to the present invention, a calendar display device for displaying a date from a display window formed on a dial is provided with a tens feed wheel and a ones feed wheel. Is integrally formed and rotates once in 31 days, a tenth driven wheel that is intermittently driven by the tenth driven wheel, and a tenth driven vehicle that are integrally formed. A tenth display plate for displaying ten digits, a tenth driven wheel which is arranged concentrically with the tenth driven wheel, and is intermittently driven by the one-position feed wheel, and a lower surface side of the tenth display plate. A unitary display plate that is integrally formed with the one-position driven wheel so as to overlap concentrically with each other, and that displays the one digit of the date from the display window at a position on the outer peripheral side of the tenth display plate. However, in the outer peripheral area of the 1st place display board, the number "1"
"2", "3" ... "9" and "0" are arranged in this order at least one cycle at equal angular intervals, and a plurality of "blanks" and a plurality of characters are provided in the outer peripheral area of the tens display panel. Number "1", plural numbers "2", and one number "3" are arranged at equal angular intervals in this order, and "31st day from the 1st feeding vehicle to the 1st feeding driven vehicle" From 1 to 1 day, the feeding operation for one step is performed in 1 day except that the feeding operation is stopped for 1 day. For the 10th feed vehicle to the 10th feed driven vehicle, It is characterized in that the feeding operation is performed under the basic condition that the feeding operation for one step is performed in a plurality of days.

In the present invention, the "feeding operation on the basic condition that the feeding operation for one step is performed in a plurality of days" is, for example, the tenth digit "1" from "10th day" to "19th day".
When four numbers “1” are used to display, the feeding operation for one step on 3 days and the feeding operation for 1 step on 2 days are repeated twice each, and 1 for 3 days This also includes a configuration in which the step feeding operation is repeated three times and the step feeding operation is performed once a day.

In the present invention, for example, "blank", numeral "1", numeral "2", numeral "3" are arranged in this order at equal angular intervals in the outer peripheral area of the tenth display plate,
From the tenth feed vehicle to the tenth feed driven vehicle,
1 for any one day from "1st" to "9th"
It is characterized in that the feeding operation for one step is performed in two days except that the feeding operation for one step is performed in a day.

According to the present invention, when the date feeding wheel makes one revolution in 31 days, the tens feed vehicle and the ones feed vehicle configured therein also make one revolution in 31 days. Of the 10th feed car and the 1st feed car, the 10th feed car drives the 10th driven car intermittently via the 10th feed intermediate car or the 10th feed car
Alternatively, the 1st driven vehicle is intermittently driven via the 1st feeding intermediate wheel. Here, in the outer peripheral area of the tenth display plate which is integrally formed with the tenth driven vehicle, five blanks, five numbers "1", five numbers "2", and one number " 3 "are arranged at equal angular intervals in this order, and for a tens feed car, one step for one day from" 1 day "to" 9 days "in a tens feed car The teeth of the phase are formed such that the feeding operation for one step is performed in two days except that the feeding operation is performed. Therefore, the tenth place display board is "blank" for 9 days from "1st day" to "9th day".
Is displayed, the number "1" is displayed for 10 days from "10 days" to "19 days", the number "2" is displayed for 10 days from "20 days" to "29 days", and "30" is displayed. "Sun" to "31
The number "3" is displayed for two days until "day". On the other hand, the numbers “1”, “2”, “3”, ..., “9” and “0” are arranged in this order in at least one cycle in the outer peripheral area of the first place display plate integrally formed with the first place driven vehicle. They are arranged at equal angular intervals, and the one-position feed vehicle has one step per day except that the feed operation stops for one day from "31st day" to "one day" in the one-position feed follower vehicle. The teeth of the phase are formed so that the feeding operation is performed. Therefore, the tenth place display board is "1 day".
From 1st to "31st", the single digit number is switched every day, and the same number "1" is continuously displayed from "31st" to "1st" of the next month.

As described above, according to the present invention, since the date is displayed by the number arranged on the tenth place display plate and the number arranged on the first place display plate, the tenth place display plate has five blanks. "And 11 numbers. That is, since 16 characters may be arranged in the outer peripheral area of the tens display plate, a larger number can be arranged as compared with the case where 31 numbers are arranged. Moreover, since the tens display plate is basically driven for one step in a plurality of days, for example, for one day, it is driven for one step. This will form 16 teeth. Therefore, it is not necessary to abnormally form the intervals between the teeth formed on the tenth feed wheel and the tenth driven wheel, so that the teeth of the tenth driven wheel or the tenth feed intermediate wheel that mesh with the tenth feed wheel have only ten teeth. It is possible to have a structure in which it does not come out from between the teeth of the position feed wheel, and it is possible to prevent the 10th driven wheel or the 10th feed intermediate wheel from rotating freely. Also, if there are no abnormal intervals between the teeth formed on the tens feed wheel or the tens feed feed follower, a jumper prevents displacement of the tens feed feed wheel or the tens feed feed follower. It's also easy. Therefore, even if it is possible to display the date with a large number by reducing the number arranged on the display plate, the day skipping does not occur.

In the present invention, the numbers "1", "2", "3" ... "9" and "0" are arranged in this order on the outer peripheral area of the first place display plate in this order for two cycles at equal angular intervals. Preferably. That is, it is sufficient to arrange 20 numbers “1”, “2”, “3”, ..., “9”, “0” in the outer peripheral area of the 1st place display plate, so that a large number can be arranged. Moreover, since the number of teeth formed on the first-position feed wheel and the first-position feed wheel is a proper number of 20 teeth, the interval between the teeth formed on the tenth-position feed wheel and the tenth-position feed driven wheel is abnormal. Never. Therefore, even if the date is displayed with a large number, the day skipping does not occur.

In the present invention, the one-position feed wheel and the one-position feed follower wheel may directly mesh with each other to directly drive the one-position feed wheel to the one-position feed follower vehicle. is there. Further, the tenth feed vehicle and the tenth feed driven vehicle may directly mesh with each other, and the drive from the tenth feed vehicle to the tenth feed driven vehicle may be directly performed.

On the other hand, according to the present invention, between the one-position feed wheel and the one-position feed follower vehicle, both the one-position feed wheel and the one-position feed follower wheel are meshed with each other. Intermediate feed vehicle for transmitting the rotation of the position feed vehicle to the driven vehicle for the one-position feed, and the tenth feed wheel and the tenth position between the tenth feed wheel and the driven wheel for the tenth feed An intermediate wheel for tens feed may be arranged which meshes with both the driven wheels for feed and transmits the rotation of the tens feed wheel to the driven wheels for tens feed.

In the present invention, the teeth of the one-position feed intermediate wheel and the teeth of the tenth-position feed intermediate wheel are respectively the same as those of the one-position feed wheel even if they are rotated due to external disturbance while the feeding operation is stopped. It is preferably configured to be located between the teeth and between the teeth of the tens feed wheel. With this configuration, the 1st driven vehicle (1st display plate) and the 10th driven vehicle (10th display plate) and the date feeding vehicle (1st feeding vehicle and 10th feeding vehicle) can rotate separately. There is no. Therefore, with a 1st driven vehicle (1st display plate) and a 10th driven vehicle (10th display plate),
Since the positional relationship with the date feeding car (1st place feed car and 10th place feed car) can always be maintained in a predetermined state, even if a day flight occurs due to a disturbance, the date feed car will be turned so that the day feed car will rotate. The phase is accurately maintained between the 1st and 10th driven vehicles. Therefore, the 10th and 1st place of the date can be corrected at once, and after the correction, the normal date is displayed.

In the present invention, it is preferable that the one-place display plate and the ten-place display plate are arranged to overlap each other in the center of the main body of the timing device. With this configuration,
Since the outer diameter dimension can be designed to be maximum with respect to the 1st place display plate and the 10th place display plate, large numbers can be arranged on the 1st place display plate and the 10th place display plate. Further, the 1st driven wheel and the 10th driven wheel integrally formed with the 1st display plate and the 10th display plate are also concentric with the 1st display plate and the 10th display plate in the center of the timing device main body. Since the 1st driven wheel and the 10th driven wheel are manually moved, the crown for correcting the date may be arranged at any position around the main body of the timing device. The degree of freedom of

In the present invention, the tenth display plate is disposed in a recess formed in an inner peripheral area of the first display plate,
The outer peripheral area in which the numeral is arranged on the one-digit display plate may be at the same height position as the outer peripheral area of the tenth display board outside the outer peripheral area in which the numeral is arranged on the tenth display board. preferable. With this configuration,
Since the numbers arranged on the tenth place display plate and the numbers arranged on the first place display plate are lined up at the same height position,
The date can be displayed easily. Further, since the outer peripheral area where the numeral is arranged on the tenth display plate and the outer peripheral area where the numeral is arranged on the first display panel do not overlap with each other, it is not necessary to form a window on the first display board. Therefore,
Since the 1st place display plate is easy to process, the 1st place display plate can be manufactured at low cost.

In the present invention, the date feeding wheel is driven in 31 days by the rotational driving force transmitted from the time display train wheel.
It is preferably configured to rotate. According to this structure, it is not necessary to provide the calendar display device with another drive source.

Such a calendar display device can be used, for example, in a timekeeping device such as a wrist watch, a pocket watch, and a table clock.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the accompanying drawings.

The calendar display device to which the present invention is applied is
It can be built into various watches (timekeeping devices) such as wrist watches, pocket watches, and table clocks, but a wrist watch is explained as an example.

FIG. 1 is a schematic configuration diagram of a pointer type electronic timepiece having a calendar display device according to the present invention built therein. Figure 2
FIG. 3 is an explanatory diagram of two display plates used in this calendar display device. In addition, in the pointer type electronic timepiece of the present embodiment,
Since the hands for displaying the time and the train wheel for displaying the time for moving them are similar to those of the conventional timepiece, their illustration and detailed description are omitted.

[Basic Configuration as a Clock] In FIG.
In the pointer type electronic timepiece 1 of the present embodiment, the step motor is driven based on the signal sent from the crystal oscillator, and the rotation of the motor rotor is the same as that of the conventional pointer display type analog quartz wristwatch. A train wheel for a clock including a car, a fourth wheel, a third wheel, a second wheel, a day wheel, and a hour wheel is transmitted to each pointer at a predetermined reduction ratio. Such a train wheel for time display is mounted on the main plate 2 to be the base. A power source for driving the step motor is a button battery or the like. In addition, by constructing a small generator in the timepiece main body, power may be generated by the movement of the user's arm and stored in a secondary battery to be used as a power source.

[Structure of Calendar Display Device] As in the conventional timepiece, a timepiece dial is arranged on the upper surface of the main plate 2. A display window 11 is formed in the direction of 3 o'clock of the dial as indicated by a dotted line L in FIG. 1, and a date display using a calendar display device 10 described below can be performed from the display window 11. It is done mechanically.

The calendar display device 10 of this embodiment is shown in FIG.
As shown in, the tenth place display plate 20 for displaying the tenth digit of the date and the first place display plate 3 for displaying the one digit of the date.
The date is displayed using two discs consisting of 0 and 0. Switching of the numbers on these two display plates is driven by the date feeding wheel 40 shown in FIGS. 3 and 4.

FIG. 3 is an explanatory view showing the arrangement of gears constituting the calendar display device. FIG. 4 shows the tens display plate 2 of the gears constituting this calendar display device.
It is a development view showing the composition of the train wheel which drives and drives 0.

3 and 4, the date feeding wheel 40 is shown.
Is driven by the date driving gear 15 to which the driving force is transmitted from the hour wheel 51 of the timepiece wheel train.
Rotate once a day. One tooth 1 on the outer circumference of the date driving gear 15
51 is formed, and 31 teeth 401 are formed in the date feeding wheel 40 at equal angular intervals. Therefore, the date driving gear 15
The tooth 151 of the gear meshes with the tooth 401 of the date feeding wheel 40 once a day, and drives the date feeding wheel 40 by one step per day (1/31 of 360 °). For this reason, the date feeding car 4
0 will make one revolution in 31 days.

In the calendar display device 10 of the present embodiment, there are two driving force transmission paths from the date feeding wheel 40 to the tens display plate 20 and the ones display plate 30 with the date feeding wheel 40 being a common driving vehicle. It is configured. Therefore, the date feeding wheel 40 has a tens feed wheel 42 with respect to the common rotation center axis 402.
And the first feed wheel 44 is integrally formed, and the tenth feed wheel 4 is formed.
2nd and 1st place feed wheel 44 are also 1/31 of 360 ° per day
Rotate by the angle of. The ten-position feed wheel 42 is for rotating the ten-position display plate 20 to switch the tenth place of the date, and the one-position feed wheel 44, as described later with reference to FIG. It is for rotating and switching the first place of the date.

[Driving Force Transmission Mechanism to Tenth Place Display Plate] As can be seen from FIGS. 3 and 4, in the calendar display device 10 of this embodiment, the tens place feed wheel 42 has ten teeth 461. A position feed intermediate wheel 46 is externally meshed, and a tenth driven wheel 25, which is concentric with the hour wheel 51, is externally meshed with the tenth position feed intermediate wheel 46. The tenth driven wheel 25 has 16 teeth 251 formed at equal angular intervals. Further, the tenth driven plate 25 is concentrically integrated with the tenth display plate 20.

As shown in FIG. 2, in order to display the ten digits of the date in the outer peripheral area of the tens display plate 20, five characters of "blank", five numbers "1", and five numbers are displayed. "2" and one number "3" are arranged at equal angular intervals in this order.
"Blank" is used to display a single digit date from "1st" to "9th". The numbers "1", "2" and "3" are the dates in the periods "10th" to "19th", "20th" to "29th", and "30th" to "31st", respectively. Used to display the tenth place of.
That is, the tenth place display board 20 displays "blank" for 5 days from "1st day" to "9th" with "blank" for 5 characters, and from "10th" with 5 numbers "1" The number "1" is displayed for 10 days up to "19th", and the five numbers "2" are 10 days from "20th" to "29th" and the number "2"
Is displayed, and the single number "3" indicates "30 days" to "31
The number "3" is displayed for two days until "day". Therefore, the tens place feed wheel 42 basically causes the tens place driven wheel 25 to perform a one-step feed operation in two days, and the tens place of the date is displayed as one number for two days. For example, of the five numbers “1”, the first number “1” is used to display the tenth place of “10th day” and “11th day”, and the second number “1” is “1”.
Used to display the tenth place of "2nd" and "13th", 3
The second number "1" is used to display the tenth place of "14th" and "15th", and the fourth number "1" is "16th"
And the tenth digit of "17th" and the fifth digit "1" is used to display the tenth of "18th" and "19th".

However, if the tenth feed wheel 42 simply drives the tenth driven wheel 25 for one step in two days, the number of days when the tenth digit is "blank" is ten days. Therefore, although 16 teeth 421 are formed on the tens feed wheel 42, not all of them are formed at equal angular intervals.
For any one day from "1st day" to "9th day", the feeding operation for one step is performed in one day, and the rest are all
The teeth are formed in such a phase that the feeding operation for one step is performed in two days. That is, as shown in FIG.
Only at the location (the area indicated by the range A), the interval between the teeth 421 is narrow because the feeding operation for one step is performed in one day. Therefore, of the five “blanks” arranged on the tenth place display board 20, the first “blank” is used only for displaying the blank part corresponding to the tenth place of “1 day”, and the second “blank” is used. "Blank" is used to display the blank equivalent to the tenth place of "2nd" and "3rd", and the third "blank" is the blank corresponding to the 10th of "4th" and "5th". The fourth "blank" is used to display the tenth blank of "6th" and "7th", and the fifth "blank" is displayed.
Is used to display the blank equivalent to the tenth place of "8th" and "9th". Therefore, the tens drive wheel 42 drives the tens drive wheel 25 through the tens drive intermediate wheel 46 for 16 steps in 31 days and 31 days.

[Driving Force Transmission Mechanism to First Place Display Plate] FIG. 5
Among the gears that make up this calendar display device,
It is a development view showing the composition of the train wheel which drives and drives the first place display board 30.

3 and 5, in the calendar display device 10 according to the present embodiment, the one-position feed wheel 44 is externally meshed with the one-position feed intermediate wheel 48, and the one-position feed intermediate wheel 48 is First-position driven wheel 3 concentric with the hour wheel 51
5 is externally meshed. This first-place driven vehicle 35 has 20
The teeth 351 are formed at equal angular intervals. Further, the first-position driven plate 35 is integrally formed with the first-position display plate 30 concentrically.

As can be seen from FIG. 5, the first-order display plate 30 has a larger outer diameter than the tenth-order display plate 20.
The outer peripheral region of 0 is located on the outer peripheral side of the tenth display plate 20. The inner peripheral region of the first place display plate 30 is shallowly recessed with a flat bottom portion, and the tenth place display plate 2 is provided in the recess 300.
0 is placed. Therefore, the outer peripheral region of the first place display plate 30 and the outer peripheral region of the tenth place display plate 20 are adjacent to each other at the same height position.

In the outer peripheral area of the first place display plate 30, as shown in FIG. 2, in order to display one digit of the date, the numeral "1" is displayed.
"2", "3" ... "9" and "0" for 2 cycles in this order,
That is, 20 numbers are arranged at equal angular intervals. However, the calendar display device 10 of the present embodiment is configured based on a large month, and displays it assuming that one month is 31st. Therefore, the numbers “1”, “2”, “3”, ...
Since one digit from "day" to "31st" is displayed, the first-place feed vehicle 44 has a phase in which the feeding operation is stopped for one day from "31st" to "1st". That is, 30 teeth 441 are formed at 31 angular positions. As a result, as shown in FIG.
Has a wide interval between the teeth 441 only at one location (area indicated by range B), and the feeding operation is not performed on the day corresponding to this portion. Therefore, the 1st place display wheel 30 will continue to display the same number "1" in 1st place from "31st day" to "1st day". The small moon is manually corrected via the crown, as described later.

[Arrangement of Jumper] As can be seen from FIG. 3, in the present embodiment, the jumper 61 obtained by processing a part of the pressing plate is elastically engaged with the date feeding wheel 40. Therefore, the daily feed wheel 40 (the tens feed wheel 42 and the ones feed wheel 44) is prevented from freely rotating due to disturbance. Further, the second and third jumpers 62 and 63 are elastically engaged with the tenth driven wheel 25 and the first driven wheel 35, respectively, and the tenth driven vehicle 25 and the first driven wheel are caused by disturbance. 35 is prevented from rotating freely.

[Structure of meshing portion] Moreover, as can be seen from FIG. 3, the tenth feed wheel 42 and the tenth driven wheel 25 have one.
Six teeth 421 and 251 are formed, and teeth 421 and 251 are formed.
The intervals are not abnormal. Therefore, FIGS.
As shown in FIG. 10, the structure can be such that the teeth 461 of the intermediate wheel for tens feed 46 do not come out from between the teeth 421 and 251 of the tens feed wheel 42 and the tens drive wheel 25. That is, FIG.
7, the teeth 421 of the tens feed wheel 42 are engaged with the teeth 461 of the tens feed intermediate wheel 46, and the tens feed wheel 42 starts rotating the tens feed intermediate wheel 46. 8 through the state shown in FIG. 8, the teeth 461 of the tens feed intermediate wheel 46 do not come out from between the teeth 421, 251 of the tens feed wheel 42 or the tens drive wheel 25. . Further, as shown in FIG. 7, even in the middle of feeding, the teeth 461 of the tens feed intermediate wheel 46 are between the teeth 421 of the tens feed wheel 42 and rotate in either direction due to disturbance. Does not come out from between the teeth 421 of the tenth feed wheel 42.
Therefore, when the tenth feed wheel 42 and the tenth driven wheel 25 try to rotate freely, they act as loads to each other, so that the tenth feed wheel 42 and the tenth driven wheel 25 do not rotate arbitrarily.

As can be seen from FIG. 3, 20 teeth 441 and 251 are formed on the first feed wheel 44 and the first drive wheel 35, and like the tenth feed wheel 42 and the tenth drive wheel 25,
The distance between the teeth 441 and 351 is not abnormal. Therefore, it is possible to provide a structure in which the teeth of the intermediate feed intermediate wheel 48 do not come out from between the teeth 441 and 351 of the primary feed wheel 44 and the primary drive wheel 35. Therefore, when the first-position feed wheel 44 and the first-position driven wheel 35 try to rotate freely, they act as loads to each other, and thus the first-position feed wheel 44 and the first-position driven wheel 3
5 does not rotate without permission.

Further, even if a day flight occurs, the day feeding wheel 40, the tenth feeding wheel 42 and the first feeding wheel 4 can be used.
If 4 is integrally formed and is not integrated with the tens feed wheel 42 and the ones feed wheel 44, the tens feed intermediate wheel 46 and the ones feed intermediate wheel 48 do not rotate. Therefore, even if a day skip occurs, the tenth feed wheel 42, the tenth feed intermediate wheel 46, the tenth driven wheel 25, and the tenth display plate 20 rotate integrally, and their positional relationship changes. There is no such thing. Similarly, the one-position feed wheel 44, the one-position feed intermediate wheel 48, the one-position driven wheel 35, and the one-position display plate 30 rotate integrally, so that their positional relationship does not change. Further, the positional relationship between the tenth display plate 20 and the ones display plate 30 does not change from the predetermined relationship. Therefore, even if a day skip occurs, the tenth display plate 20 and the first display plate 3 can be operated by operating the date correction fast-forward mechanism described below.
0 can be corrected in conjunction with it, and thereafter the normal date display is restored.

[Structure of Fast-Forwarding Mechanism for Date Correction] In FIG. 1, the calendar display device 10 of the present embodiment is configured on the basis of the large month, and it is necessary to manually correct the small month. Therefore, in this embodiment, the date correction fast-forward mechanism 7 is formed in the 3 o'clock direction of the timepiece body. The date correction fast-forward mechanism 7 has a winding stem 71 having a crown 70 fixed to the outer end in the 3 o'clock direction, a handwheel 72 fixed to the winding hand 71, and a rotation of the handwheel 72. The date correction transmission wheels 73, 74 to be transmitted are configured. Therefore, although "1 day" should be displayed originally, the previous month was a small month, so if "31 day" is still displayed, pull out the crown 70 and then move the crown 70 one step. When turned by a minute, the handwheel 72 is displaced to a position where it meshes with the date correction transmission wheel 73, and the rotation of the crown 70 is controlled by the date wheel via the handwheel 72 of the winding stem 71 and the date correction transmission wheels 73 and 74. 40 is transmitted. Therefore, the date feeding wheel 40 rotates by 1/31 of 360 °. Further, the tenth feed wheel 42 and the ones feed wheel 44 also rotate by 1/31 of 360 °, and the ones display plate 30 does not rotate but continues to display the number “1” as it is, 20 is rotated by one step, and the display is switched from the number "3" to "blank". Therefore, the date corrected to "1 day" is displayed in the display window 11.

As described above, in the calendar display device 10 according to this embodiment, since the date is displayed by the number arranged on the tenth place display plate 20 and the number arranged on the first place display plate 30, the tenth place display plate 20 is displayed. , "Blank" for 5 characters and 11 numbers may be arranged. That is, the tenth place display board 20
Since 16 characters should be placed in the outer peripheral area of the
Larger numbers can be placed compared to the case where individual numbers are placed. Moreover, the tenth feed wheel 42 and the tenth driven wheel 25 are provided with 16 teeth 421 and 251.
The interval of 51 is not abnormal. Similarly, the first feed wheel 44 and the first driven wheel 35 have 20 teeth 441, 25.
1 is formed, and the interval between the teeth 441 and 351 is not abnormal. Therefore, when the tenth-position feed wheel 42, the tenth-position driven wheel 25, the first-position feedwheel 44, and the first-position driven wheel 35 are attempting to rotate freely, they act as loads to each other. The driven wheel 25, the first feed wheel 44, and the first driven wheel 35 do not rotate freely. Also,
It is also easy to prevent the displacement of the tens feed wheel 42 while the feeding operation is stopped by the first to third jumpers 61, 62, 63. Therefore, even if it is possible to display the date with a large number by reducing the number arranged on the display board,
No flyovers occur.

Further, since the 1st place display plate 30 and the 10th place display plate 20 are arranged so as to overlap each other in the center of the timepiece main body, the 1st place display plate 30 and the 10th place display plate 20 are
The outer diameter dimension can be designed to the maximum. Therefore, the first place display plate 30
Also, a large number can be arranged on the tens display plate 20. In addition, the first driven wheel 35 and the tenth driven wheel 25 which are integrally formed with the first display panel 30 and the tenth display board 20.
Also, since it is arranged concentrically with the 1st place display plate 30 and the 10th place display plate 20 in the center of the watch body, the date is corrected by manually moving the 1st place driven wheel 35 and the 10th place driven wheel 25. The degree of freedom in design is high, such that the crown 70 for carrying out the process is not limited to the 3 o'clock direction and may be arranged at any position around the timepiece main body. Therefore, for example, the crown 7 at 12 o'clock
It is also possible to display the date in the direction of 3:00 by forming the display window 11 in the direction of 3:00 while arranging 0.

The tenth display plate 20 is the first display plate 30.
An outer peripheral region which is arranged in the concave portion 300 formed in the inner peripheral region of No. 1 and has a number arranged on the first place display plate 30,
The tenth display plate 20 is at the same height position as the outer peripheral area where the numbers are arranged. Therefore, the numbers arranged on the tenth place display plate 20 and the numbers arranged on the first place display plate 30 are flush with each other at the same height position, so that the date can be displayed in an easy-to-see manner. Moreover, since the outer peripheral area where the numbers are arranged on the tenth display plate 20 does not overlap with the outer peripheral area where the numbers are arranged on the first display panel 30, a window or the like is formed on the first display panel 30. Position display board 20
You don't need to see the numbers placed in. Therefore, it is easy to process the 1st place display plate 21, so
0 can be manufactured at low cost.

Further, the date feeding wheel 40 makes one revolution in 31 days by the rotational driving force transmitted from the hour wheel 51 of the time display wheel train through the date driving gear 15. Therefore, it is not necessary to provide another drive source for the calendar display device.

[Other Embodiments] In the above-described embodiment, the numeral "1" is set in the outer peripheral area of the first place display plate 30.
"2", "3" ... "9" and "0" for 2 cycles in this order,
They were arranged at equal angular intervals, but the numbers "1" and "2"
You may use the 1st place display board which "3" ... "9""0" was arrange | positioned at equal angular intervals only for one period in this order.

Further, in the above embodiment, the tens feed wheel 42.
The first-position feed wheel 44 drives the tenth-position driven wheel 25 and the first-position feed wheel 35 via the tenth-position feed intermediate wheel 46 and the first-position feed intermediate wheel 48, respectively.
The second and first-position feed wheels 44 may be directly meshed with the tenth-position driven wheel 25 and the first-position driven wheel 35, respectively, so as to directly move.

Further, with respect to the jumpers 61, 62, 63, flat plates such as pressing plates are machined as they are, and portions cut and raised from the pressing plates are also provided with the date feeding wheel 40, the tenth driven wheel 25, and The first driven wheel 35 may be engaged.

In the above-described embodiment, the basic operation is to perform the feeding operation for one step every two days. However, in the outer peripheral area of the tens display plate 20, a "blank" for a plurality of characters is displayed. , A plurality of numbers "1", a plurality of numbers "2", and a number "3" are arranged at equal angular intervals in this order, and the tenth feed wheel 4 is provided.
If the basic condition is that one step feed operation is performed for a plurality of days from 2 to 10th feed driven vehicle 25, one step feed operation is basically performed in three days. It may be a condition. In this case, for example, "blank" for three characters, four numbers "1", four numbers "2", and one number "3" are equiangularly arranged in this order in the outer peripheral area of the tens display plate 20. In order to display the tenth digit "1" from "10th" to "19th" by arranging at intervals, the feeding operation for 1 step on 3 days and the feeding operation for 1 step on 2 days are performed twice each. It may be configured to perform. Further, the feeding operation for one step may be repeated three times every three days, and the feeding operation for one step may be performed once a day.

[0049]

As described above, in the calendar display device according to the present invention, since the date is displayed by the number arranged on the tenth place display plate and the number arranged on the first place display plate, the tenth place display plate is displayed. For example, "blank" for 5 characters and 11 numbers may be arranged. That is, it is sufficient to arrange 16 characters in the outer peripheral area of the tens display plate.
Larger numbers can be placed compared to the case where individual numbers are placed. Moreover, the tenth display plate is basically driven for one step every two days, so that sixteen teeth are formed on the tenth feed wheel and the tenth driven wheel. Therefore, it is not necessary to make an abnormal gap between the teeth formed on the tens feed wheel, so that the teeth are naturally meshed with each other. Further, it is easy to prevent the displacement of the tens feed vehicle and the tens drive wheel while the feeding operation is stopped by the jumper.
Therefore, even if it is possible to display the date with a large number by reducing the number arranged on the display plate, it is possible to realize a timekeeping device equipped with a calendar display device in which the day skipping does not occur.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a configuration of an entire calendar display device of a pointer type electronic timepiece to which the present invention is applied.

FIG. 2 is an explanatory diagram of two display plates used in the calendar display device shown in FIG.

FIG. 3 is an explanatory diagram showing an arrangement of gears that configure the calendar display device shown in FIG. 1.

FIG. 4 is a vertical cross-sectional view showing a driving force transmission path from the date feeding wheel to the tenth driven wheel (tenth display plate) in the calendar display device shown in FIG.

5 is a vertical cross-sectional view showing a driving force transmission path from the date feeding wheel to the first driven wheel (first display plate) in the calendar display device shown in FIG.

FIG. 6 is an explanatory diagram of the calendar display device shown in FIG. 1 when a feeding operation is started among a tens feed vehicle, a tens feed intermediate vehicle, and a tens drive driven vehicle.

FIG. 7 is an explanatory diagram showing a state in the middle of the feeding operation among the tens feed vehicle, the tens feed intermediate wheel, and the tens drive wheel in the calendar display device shown in FIG. 1;

FIG. 8 is an explanatory diagram showing a state in which, in the calendar display device shown in FIG. 1, the feeding operation among the tens feed vehicle, the tens feed intermediate wheel, and the tens drive wheel has been completed.

[Explanation of symbols]

1 Pointer type electronic clock (timekeeping device) 2 main plate 7 Fast forward mechanism for date correction 10 Calendar display device 11 Display window 15 day turning gear 20th place display board 25 Tenth driven vehicle 30 first place display board 35 First place driven vehicle 40 day feed car 42 tens feed car 44 feed car 46 Intermediate car for tens feed 48 Intermediate car for feeding first place 51 Wheel Wheel for Clock Train 61, 62, 63 jumpers 70 Crown 71 Makima 72 Drum 73,74 Date correction transmission vehicle 300 concave part of 1st place display board

Claims (9)

(57) [Claims] 1. A calendar display device for displaying a date from a display window formed on a dial, wherein a tens feed car and a ones feed car are integrally formed, and the date feed rotates once in 31 days. A car, a tenth driven vehicle that is intermittently driven by the tenth feeding vehicle, and a tenth indicator plate that is formed integrally with the tenth driven vehicle and that displays ten digits of the date from the display window, A tenth driven wheel which is arranged concentrically with the tenth driven wheel and is intermittently driven by the first drive wheel and is integrally formed with the one driven wheel so as to concentrically overlap the tenth display plate. , A first place display plate for displaying one digit of the date from the display window at a position on the outer peripheral side of the tenth place display plate, and a numeral “1” is provided in an outer peripheral area of the first place display plate. "2"
"3" ... "9" and "0" are arranged in this order at least for one cycle at equal angular intervals, and in the outer peripheral area of the tenth display plate, "blank" for a plurality of characters and a plurality of numbers " 1 ", a plurality of numbers" 2 ", and one number" 3 "are arranged at equal angular intervals in this order. From the one-position feed vehicle to the one-position feed follower vehicle,
The feeding operation for one step is performed in one day except that the feeding operation is stopped for one day from "31st day" to "1st day". In particular, the calendar display device is configured to perform a feeding operation on the basic condition that the feeding operation for one step is performed in a plurality of days. 2. The outer peripheral area of the tenth display plate according to claim 1, wherein “blank”, numeral “1”, letter “2” and numeral “3” are arranged in this order at equal angular intervals, From the 10th feed vehicle to the 10th feed driven vehicle,
1 for any one day from "1st" to "9th"
A calendar display device, characterized in that it is configured such that the feeding operation for one step is performed every two days except for the feeding operation for one step per day. 3. The number "1""2""3" ... in the outer peripheral area of the ones display plate according to claim 1 or 2.
A calendar display device in which "9" and "0" are arranged in this order for two cycles at equal angular intervals. 4. The method according to any one of claims 1 to 3,
Between the one-position feed wheel and the one-position feed follower vehicle, both the one-position feed wheel and the one-position feed follower wheel mesh with each other to rotate the one-position feed wheel by the one-position feed. An intermediate wheel for one-position feed, which is intermittently transmitted to the driven wheel for use, and the tenth-position feed wheel and the tenth-position feed driven wheel are provided between the tenth-position feed wheel and the tenth-position feed driven wheel. A calendar display device comprising: an intermediate wheel for tens feed, which meshes with both of the vehicles and intermittently transmits the rotation of the tens feed wheel to the driven wheel for tens feed. 5. The tooth of the intermediate feed wheel for one-position feed and the tooth of the intermediate feed wheel for tens-position feed according to claim 4, even if the tooth is rotated by a disturbance while the feeding operation is stopped. A calendar display device, characterized in that it is located between the teeth of the feed wheel and between the teeth of the tenth feed wheel. 6. The method according to any one of claims 1 to 3,
The calendar display device, wherein the one-place display plate and the ten-place display plate are arranged so as to overlap each other in the center of the timing device main body. 7. The tenth display plate according to claim 6,
Arranged in a recess formed in the inner peripheral region of the ones display plate, the outer peripheral region where the numbers are arranged in the ones display plate is the outer peripheral region where the numbers are arranged in the tenths display plate. A calendar display device, which is at the same height as the outer peripheral region of the tenth display plate on the outside. 8. The method according to claim 1, wherein
The calendar display device, wherein the date feeding wheel is configured to rotate once in 31 days by a rotational driving force transmitted from a time display train wheel. 9. A timekeeping device comprising the calendar display device as defined in claim 1.