Coaxial big-calendar display mechanism of a watch

Abstract

The invention discloses a coaxial big-calendar display mechanism of a watch, wherein a hour wheel is arranged in the center of a dial plate and engaged with a date finger driving wheel, and a calendar date corrector, the date finger driving wheel and a date finger driving wheel shaft are pressed into a whole; a calendar wheel shaft, a calendar wheel, a units-digit change wheel and a tens-digit change wheel are positioned and pressed into a whole by position nails and rotate coaxially; a units-digit wheel and a units-digit character disk are pressed into a whole, a tens-digit wheel is fixedly arranged on a jewel bearing A on a clamping plate, and a tens-digit wheel shaft and a tens-digit character disk are pressed into a whole and rotate coaxially; and double-digit digits formed by the combination of single digits on the units-digit character disk and the tens-digit character disk are displayed by a date display window arranged on the dial plate. The coaxial big-calendar display mechanism reduces the frictional resistance produced by the rotation of the wheel shafts, ensures that the two character disks can flexibly replace the calendar and reduces the occupied space of the watch, thereby being more suitable for plane disposal and magnifying the display of the calendar. The mechanism can be arranged on the two-o'clock position, the three-o'clock position, the four-o'clock position, the six-o'clock position and the twelve-o'clock position of the watch. The whole watch is beautiful and decent and is convenient to use.

Description

technical field [0001] The invention relates to a calendar display mechanism of a watch, in particular to a watch dial coaxial large calendar display mechanism. Background technique [0002] In the existing display mechanism of a large calendar watch with double dials at present, there are usually two ways in which the ones dial and the tens dial are arranged on the dial: a side-by-side type and a coaxial type. The display mechanism of the dial side-by-side large calendar watch is characterized by the fact that the rotation centers of the ones dial and the tens dial are not on the same axis, and occupy a large space on the plane, so the diameter of the movement is small or the available plane Under limited circumstances, the use of this mechanism cannot meet the design requirements and even fail to achieve the purpose of enlarging the font of the calendar. In Chinese patent 02293974.1, a watch dial coaxial large calendar display mechanism is disclosed. The rotation centers ...

AI Technical Summary

Problems solved by technology

The display mechanism of the dial side-by-side large calendar watch is characterized by the fact that the rotation centers of the ones dial and the tens dial are not on the same axis, and occupy a large space on the plane, so the diameter of the movement is small or the available plane Under limited circumstances, the use of this mechanism cannot meet the design requirements and cannot achieve the purpose of enlarging the font of the calendar

In Chinese patent 02293974.1, a watch dial coaxial large calendar display mechanism is disclosed. The rotation centers of the ones dial and the tens dial of this mechanism are coaxial, but the disadvantages of it are: due to the two digits When the disks are set coaxially, the two disks will affect each other; secondly, the direct contact between the two wheel shafts and the splint will generate a lot of resistance, and the calendar replacement is not flexible

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