Intermittent reciprocating motion mechanism suitable for watch

Abstract

The invention discloses an intermittent reciprocating motion mechanism suitable for a watch. The mechanism comprises a cam assembly, a reciprocating motion display assembly, and a return spring assembly, wherein the cam assembly comprises a cam and a gear which are fixed on a wheel shaft, a transmission wheel in the watch acts on the gear, the gear drives the cam to rotate, a roller fixed to a rotating disc in the pointer reciprocating motion display assembly makes contact with the cam all the time, and the cam controls the initial position of intermittent reciprocating motion. The mechanism is advantaged in that through the cam structure, the timed intermittent reciprocating motion in the mechanical watch is achieved, the mechanism is simple, the machining process is good, and functions of the multifunctional mechanical watch are enriched, in addition, the cam is applied to drive the command wheel to move, movable joints are few in the implementation process, the relative freedom degree is large, and precision is high, related parts, transmission links are few, and thereby energy consumption is low, through design of the cam, timing slow change, rapid change and immobility of functional actions such as a clock watch doll and the like are realized.

Description

technical field [0001] The invention relates to an intermittent reciprocating mechanism, in particular to an intermittent reciprocating mechanism suitable for mechanical watches. Background technique [0002] The main function of mechanical watches is to read time, but with the development of mechanical watches, in addition to timing, mechanical watches are endowed with many additional functions (such as calendar display, energy display and timing functions, etc.). It tends to new and strange development directions, such as: realizing the display function of timing opening and closing in the watch, and the function display of timing opening and closing of the watch doll, etc. [0003] The reciprocating movement of the mechanical watch pointer is one of them. The intermittent reciprocating movement of the watch pointer through the control of the intermittent reciprocating mechanism greatly improves the artistry and appreciation of the watch, and at the same time it can also s...

AI Technical Summary

Problems solved by technology

[0004] The publication number is CN105446112A, which discloses an intermittent reciprocating motion structure in a watch, which is realized by a mechanical linkage structure, but the above-mentioned technical scheme has a complex structure and poor manufacturability, which makes processing difficult

Moreover, after the connecting rod structure is processed and assembled, due to its relatively large number of movable joints, the cumulative error during the operation of the mechanism is relatively large, and the stability and accuracy of the movements of the realized puppet are relatively low.

[0005] Patent CN 104977835 B discloses a watch movement provided with a driving mechanism for simulating the periodic or intermittent movement of the indicator, but the technology disclosed in the patent cannot realize the reciprocating movement indicated by the watch

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