Mechanism displaying values in variable cycles, particularly in a lunisolar calendar

A lunar calendar, variable technology, applied in the field of mechanical devices with discrete value cycles

Active Publication Date: 2007-06-27
THE SWATCH GRP RES & DEVELONMENT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, mechanisms known for displaying variables of the Julian or other Gregorian calendars cannot be used for this purpose

Method used

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  • Mechanism displaying values in variable cycles, particularly in a lunisolar calendar
  • Mechanism displaying values in variable cycles, particularly in a lunisolar calendar

Examples

Experimental program
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Embodiment Construction

[0019] The display device shown in Figures 1 and 2 comprises three concentric parts rotating around a common axis 200 in the vertical direction in the figures, called drive wheel 201, lunar month gear set 202 and stop part 203, on which are fixed permanent indications Hand B for leap month position. At this point, it should be noted that in the case of years without a leap month, pointer B is positioned at noon on scale 204 . These three rotating parts are mounted between the support plate and the dial, which are not shown. The face of the dial has a circular month scale 204 equally divided into domain numbers 1-12 according to Chinese New Year, which may be the dial of a calendar watch or any other timepiece. The indicator is formed by a pointer 206 fixed to a disc 207 of the months gear set 202 and points to the scale. The wheel and pinion also includes a toothed planetary wheel 208 rotatably mounted on the bottom surface of the disk 207 at a distance from the center of th...

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PUM

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Abstract

The invention concerns a lunar month display mechanism, for a lunisolar calendar mechanism. The mechanism includes concentrically a plate, which determines the position of the additional month in the bissextile years. The plate is provided with a hand associated with a scale of twelve months and carries a planetary wheel permanently braked by a restraining device. The drive wheel, driven over one twelfth of a revolution at each new moon, meshes with the planetary wheel and moves the plate and hand forward. At the start of a bissextile month, the stop finger forces the wheel to rotate overcoming the force of the restraining device while the drive wheel is rotating, such that the hand remains close to the number of the preceding month. The position of the stop finger is determined by a year cam. This mechanism can be used in particular in a Chinese calendar display.

Description

technical field [0001] The present invention relates generally to mechanisms for displaying, on a scale of N fields, periods of discrete values ​​of a variable capable of taking N consecutive ordinary values ​​in ordinary periods, or in particular periods comprising said N ordinary values ​​and At least N+1 values ​​of at least one additional value. Background technique [0002] This device is used in particular to display the lunar month in luno-Solar mechanisms, especially timepieces. The number or name of the current lunar month is displayed in a lunar calendar mechanism such as the conventional Chinese calendar. The lunisolar calendar is first and foremost based on lunar months, the average length of which is not equal to a whole number of days. Therefore, known mechanisms for displaying variables of the Julian or other Gregorian calendars cannot be used for this purpose. [0003] Today, the Chinese calendar is still used to date certain holidays and in Chinese astrol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09D3/00G09D3/08
CPCG04B19/241G04B19/24G04B19/26G04B1/00G04B19/23
Inventor F·梅兰A·沃勒米尔
Owner THE SWATCH GRP RES & DEVELONMENT LTD
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