JPH0616329Y2 - Clock correction mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a timepiece correction mechanism, and more particularly to a timepiece correction mechanism including an analog timepiece having a calendar display mechanism and a moon age display mechanism.

(Prior Art) In a conventional analog timepiece, the date, the day of the week, the age of the moon, and the like are displayed at different positions on the dial. The correction mechanism is composed of many members such that the correction shaft, the pressing spring, and the shaft are operated by the external operation member for each of the date indicator, the day indicator, and the moon indicator. Also, the actual development 60
In a wristwatch such as the one disclosed in -15692 Publication, a date / month age plate provided coaxially is known.

(Problems to be solved by the invention) However, the former has many operation members and has a drawback that a compact and thin design cannot be performed. Further, in the latter case, since the correction shaft is disposed on the side surface, there is a possibility that the intermediate member may act and the related components may malfunction or the components may be damaged.

(Means for Solving Problems) The present invention has been made in view of the above conventional problems, and an object thereof is a timepiece capable of easily operating the correction of the calendar display and the age display with one correction axis. It is to provide a correction mechanism of.

In order to achieve the above object, the present invention provides, in an analog timepiece, a date feeding wheel that meshes with a timepiece train wheel and is provided with first and second feed claw portions having different diameters, and a mesh pipe for the first feed claw portion. The calendar wheel with the calendar pointer at the tip of the part, and the second
Of the calendar wheel, which is provided on the shaft portion supported on the pipe portion of the calendar wheel, and two gears having different diameters, one of which is the calendar wheel and the moon wheel. It is equipped with a correction wheel that can be engaged with any of the above and can be operated externally, and the calendar display is made with a calendar pointer, and the age indicator provided on the age indicator appears from a display window punched in the dial. It is a correction mechanism.

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a timepiece according to the present invention.

A second hand 2, a minute hand 4 and an hour hand 6 representing the time are attached to the center of the timepiece dial 12. Above the dial 12
A calendar pointer 8 for displaying a calendar is attached near the hour, and a display window 13 for the age of the moon is provided in an arc shape. Numbers are arranged in two steps around the outside of the display window 13,
The second step is an arc-shaped display of the age indication from "1" to "291/2".
Dates from "1" to "31" are engraved in a circle on the tier. A moon plate 36 is rotatably supported coaxially with the calendar pointer 8, and the surface of the moon plate 36 is provided with a pictorial display of the moon age indicating the phases of the moon.

FIG. 2 is a sectional view of FIG. A mechanical body 20 having a train wheel is provided on the back surface of the dial 12, and a correction knob 14 for correcting the calendar and the age is arranged on the mechanical body 20.

FIG. 3 is a sectional view of the essential parts of the timepiece according to the present invention. Two
Reference numeral 2 denotes an hour hand pinion, which is formed integrally with the hour hand pipe 21 and makes one rotation in 12 hours. The hour hand pinion 22 meshes with the date feeding gear 24 a of the date feeding wheel 24. The date feeding wheel 24 is provided with two feeding claws 24b and 24c having different diameters from the center, and the calendar wheel 30 is provided on the first feeding claw 24b having a large diameter and the second feeding claw 24c having a small diameter is provided on the second feeding claw 24c. Moon car 34
1 is supported by a shaft 26 protruding from the main plate 25.
Spin once a day. Therefore, the feed claw 24b feeds the calendar wheel 30 one tooth a day, and the feed claw 24c feeds the month wheel 34 one tooth a day. Although not shown, proper springs are in contact with the teeth of the calendar wheel 30 and the moon wheel 34 to prevent unexpected rotation.

A shaft 32 is planted in the receiving plate 28 to support a calendar wheel 30. The calendar wheel 30 has a pipe portion 3 at the center.
0a is provided, and the pipe portion 30a penetrates the dial 12 and the calendar pointer 8 is attached to the tip portion. The retaining pin 35 of the calendar pointer 8 is fitted to the tip of the pipe portion.

The moon wheel 34 meshes with the feed claw 24c and the gear portion 34a, and the central shaft portion 34d allows the pipe portion 30a of the calendar wheel 30 to be engaged.
The moon plate 36 is attached while being supported by.

The moon plate 36 has two indications of the moon, and the gear portion 34a is composed of 59 teeth so as to perform 1/2 rotation in 29.5 days.

The correction shaft 40 is pivotally supported by the receiving plate 28, and the correction pinion 38 is fixed to one end of the correction shaft 40 and the correction knob 14 is fixed to the other end thereof. The correction pinion 38 has two tooth portions 38a and 3 having different diameters.
8b and. Further, the correction shaft 40 is provided with the correction knob 14
By interposing the spring 42 between the support plate 28 and the receiving plate 28, the movement in the axial direction is enabled. Therefore, the tooth portion 38a
Alternatively, either one of 38b and 38b can be engaged with either the calendar wheel 30 or the moon wheel 34.

In order to know the age of the moon under the above configuration, do the following. That is, the dial 12 has the moon display 10 of the moon plate 36.
The display window 12a in which is visible is formed in a substantially arcuate shape, and a number indicating the age display of "1" to "291/2" is drawn on the outer periphery thereof, so that the place where the age display 10 coincides with the number of the age display. Decide the age of the day.

The above-mentioned feed of the calendar pointer 8 and the moon plate 36 is set so that each phase can be fed by one tooth in an appropriate time width by shifting the phase.

Next, a method of correcting the display will be described.

FIG. 3 shows a normal state, in which the enlarged-diameter tooth portion 38a on the correction shaft 40 meshes with the gear portion 30b of the calendar wheel 30. When the timepiece is driven to the proper position, the driving force of the hour hand pinion 22 rotates the date feeding wheel 24 and the calendar wheel 30, and rotates the correction pinion 38 against the elasticity of the spring 42.

When the correction knob 14 is manually rotated in this state, the calendar wheel 30 rotates and the calendar pointer 8 attached to the tip of the pipe portion 30a of the calendar wheel 30 rotates. You can adjust the pointer 8 to the calendar number.

On the other hand, if the correction knob 14 is manually pushed in the axial direction,
The enlarged diameter tooth portion 38a of the correction pinion 38 is disengaged from the tooth portion 30b of the calendar wheel 30, and the small diameter tooth portion 38b and the gear portion 34a of the moon wheel 34 mesh with each other. Therefore, when the correction knob 14 is rotated while being pressed, the moon wheel 34 is rotated.

The rotation of the moon wheel 34 simultaneously rotates the moon plate 36 fixed to the moon wheel 34, and the position of the moon display 10 appearing in the display window 12a of the dial 12 is adjusted to the moon number provided on the dial 12.

When the hand is released from the correction knob 14 after the correction of the moon plate 36 is completed, the correction knob 14 is returned to its original position by the elasticity of the spring 42, and the tooth portion 38b of the correction pinion 38 is the gear portion of the moon wheel 34. 34a is disengaged. At the same time, the correction kana 38
The tooth portion 38a of the gear meshes with the tooth portion 30b of the calendar wheel 30 to return to the state in which the calendar wheel can be corrected.

As described above, in the present invention, different display functions can be modified with one modification knob.

Incidentally, in the normal state, the correction pin 38 is adapted to mesh with the calendar display function. This is because the calendar requires a small month and a large month to be corrected once a month, which is the method we have adopted.

(Effect of the Invention) As described above, according to the present invention, the calendar mechanism and the age display mechanism can be switched by one operation axis, and the correction mechanism can be configured with a simple structure and can be easily operated. It has the effect of excellent operability.

[Brief description of drawings]

 FIG. 1 is a front view of a timepiece according to the present invention. FIG. 2 is a vertical sectional view of FIG. FIG. 3 is an enlarged sectional view of a main part of the timepiece according to the present invention. 8 ... Calendar pointer, 10 ... Month age indicator, 24 ... Date feed wheel, 24b ... First feed pawl, 24c ... Second feed pawl, 30 ... Calendar wheel, 34 ... Moon feed wheel, 34d ... Shaft, 36 ... Moon board, 38 ... Modified pin, 42 ... Spring.

Claims (1)

[Scope of utility model registration request] 1. In an analog timepiece, a date feeding wheel having first and second feed pawls meshing with a timepiece train wheel and having different diameters, and a calendar pointer at the tip of a pipe portion that meshes with the first feed pawl. A calendar wheel to be installed, a month wheel that meshes with the second feed pawl and is directed on the pipe section of the calendar wheel, and the display on the moon plate on the shaft can be seen through the window of the clock dial. It has two gears, and one of the gears is equipped with a correction car pinion that can be externally operated so that it can mesh with either the calendar wheel or the moon wheel. A timepiece correction mechanism characterized by displaying the age of a person by appearing from a display window formed in a plate.