JPH0634714Y2 - Analog wrist watch - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an improvement of an analog wristwatch that displays information such as calendar and age by a mechanical display mechanism.

[Conventional technology]

Conventionally, there are many watches that display information other than hours / minutes / seconds, for example, date, day of the week, age of month, etc. Was there. 31 teeth on the date, 7 teeth on the day or
Equipped with a wheel with 14 teeth, 59 teeth for the age of the moon, the teeth are controlled by a spring, and a feed mechanism engages one or two teeth per day with a feed correction mechanism. It had a structure to correct it.

[Problems to be solved by the invention]

For this reason, the model that displays certain information has a dedicated jump control spring, feed mechanism, and correction mechanism together with its own display vehicle, and the model that displays different information is different from the different display vehicle. It had a jump control spring, a feed mechanism, and a correction mechanism.

In this way, if the structure is completely different, the ground plate and the like would have to be made separately, and various small amounts of parts would have to be made, and the cost of each part would be high.

The present invention intends to solve such a problem, and aims to reduce the cost by standardizing the parts.

[Means for solving problems]

The present invention relates to an analog wristwatch that displays calendar information by a mechanical display mechanism, a display wheel that displays calendar information, a jump control means that holds the display vehicle at a predetermined position,
An external operation member, a correction means for transmitting an operation of the external operation member to the display wheel, wherein the display wheel has a first gear engaged with the jump control means, and a second gear engaged with the correction means. The gear and the second gear are integrally formed, and the second gear has a number of teeth that is an integral multiple of 7, and is different from the first number of teeth.

[Action]

With such a configuration, the number of teeth of the second gear engaged with the correction means can be the same regardless of the cycle of the information displayed by the display wheel, and the correction mechanism can be shared. Only the number of teeth of the first gear that engages with the jump control means, 31 in the case of date, in the case of day of the week, according to the cycle of the displayed information
You can change it to 14 and 59 if you are aged.

〔Example〕

 FIG. 1 shows a sectional view of an embodiment of the present invention.

In the figure, reference numeral 1 is a base plate, and 5 is a calendar wheel. A calendar body 5-b having 14 teeth is press-fitted into a star wheel 5-a having 31 teeth to be integrally formed. Although not shown in the drawing, a hand is attached to the upper end of the calendar wheel 5, and the dial 14
The date is indicated by pointing to the letters 1 to 31 printed above. The date star wheel 5-a is engaged with the date jumper portion 4-a of the date indicator driving wheel presser 4 so as to prevent it from freely rotating. The date indicator driving wheel 3 rotates once a day around the shaft 1-b of the main plate, and the feed claw 3-a feeds one day of the date star wheel 5-a. Reference numeral 9 denotes a calendar correction transmission wheel, which is not shown in the drawing, and is adapted to mesh with a rotating pinion wheel by a winding stem which is an external operation member. The calendar correction wheel 10 meshes with the calendar correction transmission wheel 9, and the date hand correction transmission wheel 11 meshes with the calendar correction vehicle 10 and the calendar body 5-b. Is being done. The calendar wheel 5 is guided by the hour wheel 6 to rotate, and is regulated upward by the calendar wheel retainer 7. Also, 12 is the second wheel, 13 is the fourth wheel, 16 is a wheel bridge.

FIG. 2 shows another embodiment of the present invention, which is a model equipped with an age indicator plate. In the figure, 17 is a moon display plate, which has two moons printed on the top surface and makes one rotation in 59 days. The moons appear alternately from the window on the dial.
It has phases of 9.5 days. For this reason, the age indicator plate 17 is provided with 59 teeth 17-a, and the age jumper portion 20-a extending from the date indicator presser 20 is engaged with the date indicator wheel 19.
The month-old feed jaws 19-a feed one tooth a day. The second gear 17-b provided integrally with the age indicator plate 17 has the same tooth profile as the calendar vehicle body 5-b of the embodiment shown in FIG. It is common with the day hand correction transmission wheel 11 in Fig. 1, and the calendar correction wheel 1
The calendar correction transmission wheel 9 is completely the same as that shown in FIG. That is, the correction mechanism of the age display plate is completely the same as the correction mechanism of FIG.

FIG. 3 shows a cross-sectional view of the main parts of the model with a date / day of the week display function, which is the base of the pointer display type calendar model of FIG. 1 and the age display model of FIG. In the figure, 21 is a day wheel, the day of the week is displayed in two languages, and the number of teeth is 14. This tooth profile is used as it is for the calendar vehicle body 5-b in FIG. 1 and the age indicator plate 17 in FIG. 2, whereby the day correction transmission wheel 22, calendar correction vehicle 10, calendar correction transmission wheel 9 are used.
The above correction mechanism can be diverted to the model shown in FIG. 1 and the model shown in FIG.

In the embodiment, the number of teeth of the calendar vehicle body 5-b has been described as 14 teeth, but the number of teeth is not limited to 14 and may be an integral multiple of 7.

[Effect of device]

As described above, according to the present invention, the day of the week, the date, the age of the moon, etc.
The effect that the correction mechanism of the calendar information display vehicle can be commonly used between the models that display calendar information with different cycles is exhibited. Watches that display the date and the age of the moon according to the guidelines are not bought in large quantities as the mainstream, but are only bought as fashion. Since the parts used exclusively for such models will be expensive,
There are fewer dedicated parts, and it is very effective to make it common with other models at low cost. The fact that parts are standardized means that the assembly line can be standardized, the types of after-sales service parts can be reduced, and other effects are immeasurable.

Although the correction mechanism has been described as a train wheel type in the embodiment, the same can be applied to the type using a lever, and further, the position where the display wheel is arranged is changed, and the arrangement is changed while the correction mechanism is commonly used as a component. It goes without saying that the same effect can be obtained even if this method is adopted.

[Brief description of drawings]

Fig. 1 ... embodiment of the present invention Fig. 2 ... other embodiment of the present invention Fig. 3 ... sectional view showing a model which is the base of the present invention 1 ... main plate, 3 ... day turning Car 4 …… Day wheel drive foot 5 …… Calendar wheel 6 …… Cylinder wheel, 7 …… Calendar wheel presser 9 …… Calendar correction transmission wheel 10 …… Calendar correction vehicle, 11 …… Day hand correction transmission wheel 14… … Character plate, 17 …… Month age display plate 18 …… Month age correction transmission car, 19 …… Day-turning car 21 …… Day wheel, 22 …… Day correction transmission car

Claims (1)

[Scope of utility model registration request] 1. An analog wristwatch that displays calendar-related information by a mechanical display mechanism, a display wheel that displays calendar-related information, a jump control means that holds the display vehicle at a predetermined position, an external operation member, and the external operation. The display wheel includes a first gear that engages with the jump control means and a second gear that engages with the correction means, which are integrally formed. An analog wristwatch characterized in that the second gear has a number of teeth that is an integral multiple of 7, and is different from the first number of teeth.