Watch movement calendar wheel structure

Abstract

The invention discloses a watch movement intermediate date wheel structure which can reduce the thickness of an intermediate date wheel, and can also improve the strength of a main clamp plate. The watch movement intermediate date wheel structure comprises the main clamp plate, the intermediate date wheel and a combined maintaining plate, wherein the intermediate date wheel is positioned on the upper surface of the main clamp plate. The bottom of the intermediate date wheel is in planar connection with the main clamp plate, a convex column shaft is arranged at the center of the top of the intermediate date wheel, a positioning shaft hole is formed in the combined maintaining plate, and the convex column shaft can be inserted into the convex column shaft. The space in a side shell of the combined maintaining plate is sufficiently used for rotational positioning, the thickness of the intermediate date wheel is reduced, the main clamp plate in an area connected with the intermediate date wheel can be thickened, the strength of the main clamp plate is improved, and a movement is accurate, reliable and stable in timing. As for the shaped watch movement, the strength of the main clamp plate can be improved by decreasing the thickness of the intermediate date wheel and thickening the main clamp plate. As for a novel type to be developed, the thickness of the whole movement can be reduced by decreasing the thickness of the intermediate date wheel. The manufacturing process of the intermediate date wheel and the main clamp plate can be simplified, and machining cost is reduced.

Description

technical field [0001] The invention relates to a calendar passing wheel structure of a watch movement, in particular to a calendar passing wheel structure of a watch movement capable of reducing the thickness of the calendar passing wheel. Background technique [0002] Quartz electronic watches are favored by people for their advantages of accurate travel time, beautiful appearance and eliminating the need for operations such as mechanical watch tightening, but because of the motor, gear train mechanism and other circuit components installed inside the watch case, the space inside the watch case is limited. Therefore, making full use of the narrow case space to make watches with accurate travel time and thin and light size has always been a topic that the industry has paid more attention to. [0003] Such as figure 1 , 3 As shown, in the adjustment mechanism of the watch movement, the setting wheel 3 is sleeved on the front end of the stem 2 and is located in the through ...

AI Technical Summary

Problems solved by technology

[0004] Since the setting wheel 3, the main splint 1 and the calendar passing wheel 5 are designed to overlap in space, and the setting wheel 3 and the calendar passing wheel 5 are supported on the main splint 1, this requires the main splint 1 to have certain strength, but the thickness dimension should not be too large. Therefore, reducing the thickness dimension of the main splint 1 will weaken its strength, resulting in poor reliability of the movement; on the contrary, increasing the thickness dimension of the main splint 1 increases its strength, but the Brings the defect of increasing the thickness of the movement and increasing the size of the quick dial 4, which leads to an increase in consumables

[0005] In addition, regardless of processing the short shaft 11 on the main splint 1 and setting the groove of the calendar passing wheel 5, or setting the shaft hole on the calendar passing wheel 5, it will bring certain difficulties to production, thereby improving the manufacturing process. cost

Images