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Gear trains and clocks

A technology of gear train and gear train part, which is applied in the direction of clocks, time-indicating mechanical devices, gear mechanisms, etc.

Active Publication Date: 2021-04-20
CASIO COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In such a wristwatch, when changing the setting position of the hands, it is necessary to change the setting position of the pointer wheel, and accordingly, the position of the shaft mounting hole of the support member must be changed, so there is a problem that the support member must be remade and replaced.

Method used

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  • Gear trains and clocks
  • Gear trains and clocks
  • Gear trains and clocks

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0022] Below, refer to Figure 1 to Figure 7 , and the first embodiment will be described.

[0023] like figure 1 As shown, the watch has a watch case 1. The wristwatch case 1 is provided with a band mounting part 2 on each side of the 12 o'clock side and the 6 o'clock side, respectively.

[0024] Additionally, if figure 1 As shown in FIG. 1 , a switch operation portion 3 such as a crown is provided on the side portion of the watch case 1 on the 3 o'clock side. Push button switches 4 are respectively provided on the side portions of the watch case 1 on the 2 o'clock side, the 4 o'clock side, the 8 o'clock side, and the 10 o'clock side. A clock module 5 is provided inside the watch case 1 .

[0025] like figure 1 and figure 2 As shown, the timepiece module 5 includes a substantially disc-shaped dial 6 arranged on the upper surface thereof, and an annular partition member 7 arranged on the outer peripheral portion of the upper surface of the dial 6 . In this case, a plu...

no. 2 approach

[0065] Next, refer to Figure 8 and Figure 9 , and the second embodiment will be described. Additionally, for Figure 1 to Figure 7 The parts that are the same as those of the first embodiment shown will be described with the same reference numerals.

[0066] Such as Figure 8 and Figure 9As shown, this wristwatch has a structure in which the third auxiliary hand 15 can be changed to three different setting positions, and is the same structure as the first embodiment except that.

[0067] That is, if Figure 9 As shown, the first support member 41 corresponding to the third sub-display unit 40 is configured by disposing the stepping motor 16 and the gear train unit 17 in the same manner as in the first embodiment. In this case, the gear train unit 17 is also configured to include a first intermediate wheel 23 that rotates with the rotation of the rotor 22 of the stepping motor 16 , and a second intermediate wheel that rotates with the rotation of the first intermediate...

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PUM

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Abstract

The present invention provides a gear train device, which includes: a dial plate with a display area between a central part and a part of the outer periphery; a needle; a support member supporting the train wheel at a position corresponding to the display area; and a plurality of shafts provided at a plurality of positions of the support member and selectively attaching the pointer wheel to any of the plurality of positions Mounting holes.

Description

technical field [0001] The present invention relates to a gear train device used for a timepiece such as a wristwatch, and a timepiece including the gear train device. Background technique [0002] For example, in a wristwatch, a structure is known: as described in Japanese Patent Application Laid-Open No. 2001-324579, a wheel train portion is provided to transmit the rotation of the motor to the pointer wheel through a plurality of intermediate wheels, and the The pointer of the pointer shaft of the pointer wheel moves the needle. [0003] The wheel train of such a wristwatch is configured such that a plurality of intermediate wheels and pointer wheels are rotatably supported by at least two upper and lower supporting members. That is, a plurality of shaft attachment holes for rotatably supporting the upper and lower portions of the shaft portions of the plurality of intermediate wheels and the upper and lower portions of the pointer shaft of the pointer wheel are respecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G04B13/02G04B19/06G04B19/04G04B31/00G04B33/00
CPCG04B13/02G04B19/04G04B19/06G04B31/00G04B33/00G04C3/14G04B19/02G04B19/241
Inventor 国见辽一远田良彦
Owner CASIO COMPUTER CO LTD