Double-layer calendar mechanism of timekeeper

Abstract

The invention discloses a double-layer calendar mechanism of a timekeeper. The mechanism comprises a date wheel assembly, two calendar rings stacked up and down and locating blocks limiting the calendar rings radially; the date wheel assembly drives the calendar rings to rotate; and rapid date start wheel or a date idle wheel is engaged with the date wheel assembly to realize date change in a rapid stirring or time travelling way. The mechanism has the advantages that the double calendar ring structure is used so that the calendar display font is enlarged; the calendar rings of a flat layer structure are simple in processing; and two locating blocks act on each calendar ring, so that a lack tooth of a tooth ring is radially limited by the locating blocks in any position. Especially, different from a present calendar ring structure, a calendar time traveling and rapid stirring portions share one date mechanism, the mechanism reliability is improved, technologies are simplified, the space is saved in planar layout, and the axial size is reduced. The mechanism is simple in structure, convenient to process and simplified in processing procedures, and includes fewer parts.

Description

technical field [0001] The invention relates to a double-layer calendar display mechanism of a clock, in particular to a large-character display mechanism of a double-layer calendar ring of a clock. Background technique [0002] The date display of the timepiece relies on a calendar ring with 31 segments with a marker 1 to 31 containing the different dates. However, the disadvantage of this type of watch is that the calendar display area is only an area of ​​one thirty-first of the circumference of the calendar ring. In small format watches, the size of this area is not sufficient for a clear display. [0003] To solve this problem, the existing publication numbers CN1621974B and CN1621975B disclose a technical solution with two calendar rings, which effectively solve the defect that the date cannot be clearly displayed. The needle setting mechanism, the publication number CN1621974B, this patent describes the travel time part of the watch movement, and the publication num...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this type of watch is that the calendar display area is only one-thirtieth of the size of the calendar ring circumference

In small format watches, the size of this area is not sufficient for a clear display

[0003] To solve this problem, the existing publication numbers CN1621974B and CN1621975B disclose a technical solution with two calendar rings, which effectively solve the defect that the date cannot be clearly displayed. The needle setting mechanism, the publication number CN1621974B, this patent describes the travel time part of the watch movement, and the publication number CN1621975B describes the movement part of the watch movement. In the structure, a calendar ring ring gear is made There are two layers, each layer has a thin tooth, which can separate it from the date change wheel and the quick dial wheel respectively, so as to complete the action of changing the travel time and changing the date quickly

The gap between the structural parts is too small, which will cause unreliable situations such as interference affecting the normal operation of the mechanism, and also increase the difficulty of manufacturing, which is not conducive to the needs of production

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