A starting mechanism of a mechanical timekeeping watch

Abstract

The invention discloses a starting mechanism of a mechanical time-telling watch. According to the starting mechanism, a through groove is formed on a spacer ring, and a pull core support is fixed in the through groove of the spacer ring; a connecting sleeve is respectively connected and fixed with one end of a pull core and a square end of a shifting hander as a whole, and the other end of the pull core is a free end; the pull core which is sheathed with a waterproof sealing pipe and a pressure spring penetrates through a connecting block and the pull core support; the pressure spring is arranged in a range of the length of the support; the connecting block is fixedly arranged at a gap formed on the pull core; the pull core penetrates through the connecting block, and the connecting block is fixedly connected with a shafting block; the shafting block in contact with or separated from a movement time-telling starting plate; and upper and lower ends of the exterior of the spacer ring are provided with waterproof rubber rings. The starting mechanism of the invention is advantageous in that: because waterproof rubber rings for sealing are arranged between the spacer ring and a watchcase, and a waterproof sealing pipe is arranged between the spacer ring and the inner pull core, the contact between the exterior and the interior is obstructed from an outermost end, and sealing is carried out from the interior, thereby enabling favorable dustproof and waterproof effects to be achieved. According to the starting mechanism, a sealing box is omitted, which enables a watch with a standard size to be small and thin.

Description

technical field [0001] The invention relates to a starting mechanism of a mechanical timekeeping watch, in particular to a starting mechanism of a mechanical timekeeping watch with waterproof performance and improved structural performance. Background technique [0002] A mechanical watch with a timekeeping function, commonly known as a "request watch", realizes the timekeeping function through a timekeeping mechanism arranged inside the movement. The timekeeping start mechanism of the repeater needs to process a through hole on the side wall of the case to meet the power transmission from the outside to the internal components. At this time, the movement inside the case is in direct contact with the air, which cannot meet the requirements of dustproof and waterproof. Chinese patent CN101846964A discloses a waterproof mechanism of a mechanical timekeeping watch, such as Figures 1 to 3 As shown, one end of the compression spring 1 is installed on the positioning head of the...

AI Technical Summary

Problems solved by technology

The waterproof mechanism of the mechanical timekeeping watch in the above-mentioned patent basically meets the requirements of dustproof and waterproof, but has the following disadvantages: 1. In terms of sealing and waterproofing, there is a special-shaped rubber ring between the sealing box and the fixed machine ring, which is processed and adapted. Difficulty, poor versatility, and high cost; the sealing rubber ring between the sealing box and the tie rod needs to be processed on the sealing box to place a groove to place the rubber ring. The processing of the parts is difficult and there are many procedures. Once there is a problem or it cannot be adapted after processing, will cause waste

2. The compression spring plays the role of resetting the mechanism. Similarly, if the rebound force cannot be effectively controlled, it will also cause hard damage between parts and reduce the service life.

3. The matching part of the dial handle and the buckle is designed in a fan shape, which is difficult to process the shape, poor in consistency, and difficult to inspect

After assembly, there are often problems such as the push of the dial is not in place, or the parts are stuck during the push process.

4. Due to the large volume of the sealed box, it limits the size of the overall watch

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