JP3605170B2 - Clock with time difference correction function - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a timepiece with a time difference correction function.
[0002]
[Prior art]
FIG. 4 shows a conventional example.
The time difference correction wheel 6 including the first time difference correction gear 6a, the second time difference correction gear 6b, and the jump control mechanism 6c is supported by a time correction wheel guide pin 10b formed on the main plate 10.
[0003]
The first hour wheel 4 and the second hour wheel 5 are also supported by an hour wheel axle 10 a formed on the main plate 10. The first hour wheel 4 and the first time difference correcting gear 6a, and the second hour wheel 5 and the second time difference correcting gear 6b are meshed in a plane.
For example, Japanese Utility Model Laid-Open No. 3-88182 discloses such a structure.
[0004]
[Problems to be solved by the invention]
However, in a structure in which the time difference correction wheel 6 is supported by the time difference correction wheel guide pin 10a formed on the main plate, the phases of the teeth in the rotation direction of the two time difference correction gears constituting the time difference correction wheel are arbitrary. When the two hour wheels and the time difference correction wheel are incorporated in a sectional view, there is a problem that the tooth shapes to be meshed are often caught and the assemblability is very poor.
[0005]
Therefore, an object of the present invention is to provide a timepiece with a time difference correction function that facilitates assembly of a time difference correction wheel and an hour wheel.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a first support member that supports a first hour wheel and a second hour wheel, a first time difference correcting gear, a second time difference correcting gear, and a jump control mechanism. A second support member that supports the time difference correction wheel configured as a separate member, and a time difference correction gear that is supported by the second support member is slid in a planar direction at the time of assembly, so that the first time difference correction is performed. The gear is configured to mesh with the first hour wheel, and the second time difference correcting gear is configured to mesh with the second hour wheel.
[0007]
[Action]
According to the above configuration, when the time difference correction wheel rotatably supported by the second support member is incorporated in a cross section, the hour wheel and the time difference correction wheel do not mesh with each other in a plane, and the time difference correction wheel is flat when the assembly is performed. By sliding in the direction, the time difference correcting wheel and the hour wheel are meshed two-dimensionally, the assembling property is good, and the time difference correcting wheel and the hour wheel are stably meshed after assembling.
[0008]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a cross-sectional view showing a completed state of a time difference correcting vehicle according to the present invention.
In FIG. 1, a cylindrical axle 1a is formed integrally with a main plate 1.
[0009]
The first hour wheel 4 is rotatably incorporated into the hour wheel 1a so as to mesh with the minute wheel 3 transmitting the motor torque.
The second hour wheel 5 is rotatably mounted on the hour wheel 1a so as to overlap the first hour wheel 4.
[0010]
The time difference correction wheel 6 is provided between a second time difference correction gear 6b, a first time difference correction gear 6a rotatably incorporated in a shaft portion 6d of the second time difference correction gear 6b, and each time difference correction gear. It comprises a jump control mechanism 6c.
The jump control mechanism 6c includes a time jump control spring 6e formed integrally with the first time difference correction gear 6a and one tooth integrally formed on a part of the shaft portion 6d of the second time difference correction gear 6b for one hour. The first time difference correction gear 6a and the second time difference correction gear 6b are positioned in the rotation direction in units of one hour in the rotation direction by engaging the time jump control gear 6f corresponding to the above and jumping.
[0011]
The date wheel retainer 2 is rotatably supported by a time difference correction wheel 6 by means of an integrally formed time difference correction wheel guide pin 2a, and is fixed to the main plate 1 so as to mesh with the first hour wheel 4 and the second hour wheel 5. It is incorporated into the integrally formed date indicator holding guide pin 1b.
The date wheel holder 2 is fixed to the main plate 1 with screws 7.
[0012]
As described above, after the assembly is completed, the first hour wheel 4 and the first time difference correcting gear 6a mesh with each other, and the second hour wheel 5 and the second time difference correcting gear 6b mesh with each other to constitute a time difference correcting mechanism. ing.
FIG. 2 is a cross-sectional view showing a state in which the assembling is being performed, which is a state where the assembling is completed in FIG.
[0013]
The date wheel holder 2 pivotally supports the time difference correction wheel 6, and at this time, the hour wheels 4, 5 and the time difference correction wheel 6 are not meshed in a plane. After incorporating the time difference correction wheel 6 in the state of FIG. 2, the date indicator presser 2 is slid together with the time difference correction wheel 6 in the direction of the arrow A, and the first hour wheel 4 and the first time difference correction gear 6a, and The second hour wheel 5 and the second time difference correcting gear 6b are engaged with each other from the plane in a direction in which the tooth tips gradually approach each other, and the assembled state shown in FIG. 1 is completed.
[0014]
Even when the time difference correcting wheel 6 having two meshing portions is incorporated by the above-described incorporation mechanism, the phase shift between the teeth can be eliminated by the mutual gears escaping in the rotating direction. It won't catch you.
FIG. 3 is a plan view of the present invention.
[0015]
The position of the dashed line B is the position of the date wheel presser 2 and the time difference correction wheel 6 that are being assembled as shown in FIG. At this position, the hour wheels 4, 5 and the time difference correction wheel 6 are not engaged.
By sliding the date wheel holder 2 and the time difference correction wheel 6 in the direction of the arrow C from the position of the broken line B to the position of the solid line, the hour wheels 4, 5 and the time difference correction wheel 6 mesh with each other.
[0016]
Then, the date indicator holder 2 is fixed to the position of the date indicator holder guide pin 1b with the screw 7, whereby the assembly is completed.
[0017]
【The invention's effect】
As described above, the present invention relates to a time difference correcting mechanism including two time difference correcting wheels and two hour wheels,
The support member of the time difference correction vehicle and the hour wheel are separated from the support member,
When installing, make sure that the time difference correction wheel and the hour wheel do not mesh flatly,
By assembling the time difference correction wheel after being assembled and slidingly engaging the hour wheel, it is possible to provide a timepiece with a time difference correction function that has dramatically improved the assemblability of the time difference correction vehicle.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a completed state of an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state in which the embodiment of the present invention is being assembled.
FIG. 3 is a plan view showing an embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a conventional method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main plate 1a Tube axle 1b Date wheel holding guide pin 2 Date wheel holding 2a Time difference correction wheel guide pin 3 Minor wheel 4 First hour wheel 5 Second hour wheel 6 Time difference correction wheel 6a First time difference correction gear 6b Second time difference correction gear 6c Jump control mechanism 6d Shaft 6e Time jump control spring 6f Time jump control gear 7 Screw 8 Date wheel holding member 9 Hour hand 10 Ground plate 10a Tube axle 10b Time difference correction wheel guide pin 10c Date wheel holding guide pin

Claims (3)

A minute wheel that transmits hand movement torque,
A first hour wheel meshing with the minute wheel,
A time difference correction wheel having both jump control functions when engaged with the first cylindrical wheel,
A second hour wheel that meshes with the time difference correction wheel and attaches an hour hand,
A first support member provided on the base plate for supporting the second hour wheel and the first hour wheel,
The second time difference correction function watch characterized by having a support member provided on a member different from that of the base plate for supporting said time difference correction wheel. The timepiece with a time difference correcting function according to claim 1, wherein the member different from the main plate is a date wheel holder. The time difference correction wheel has a first time difference correction gear, a second time difference correction gear, and a jump control mechanism disposed between the first and second time difference correction gears and intermittently determining a phase in a rotation direction. And
When the time difference correcting gear slides in the plane direction, the first time difference correcting gear meshes with the first hour wheel, and the second time difference correcting gear has an area meshing with the second hour wheel. The timepiece with a time difference correcting function according to claim 1 or 2, wherein

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