Stop mechanism of tourbillon

Abstract

The invention discloses a stop mechanism of a tourbillon, which comprises a tourbillon component, stop pincers, a stop pincers return spring and a control rod, wherein a central shaft of the tourbillon component is arranged on a substrate through a jewel bearing, the stop pincers are fixed in a watch movement through stop pincers axis bolts and connectors, and the front ends of the stop pincers are placed on two sides of the central shaft of the tourbillon; the stop pincers return spring is extruded at the rear end of the stop pincers and fixed in the watch movement through stop pincers return spring bolts and connectors; and the control rod is fixed in the watch movement through a control rod shaft and a connector, the inside end of the control rod is arranged in a groove of the stop pincers, and the outside end of the control rod is placed in a transverse groove of a clutch wheel or placed in a groove of a handle shaft through a connecting rod. The stop mechanism of the tourbillon has the advantages that the stop of the tourbillon is realized by clamping the central shaft of the tourbillon through the stop pincers, the start of the movement at a precise monument is ensured, the mechanism does not need to change the primary spring output torque of the movement, the structure is simple and reliable, and the stop mechanism is convenient to process and can meet the stop requirement of the tourbillon movement.

Description

technical field [0001] The invention relates to a stop mechanism of a watch, in particular to a stop mechanism of a tourbillon of a watch with a tourbillon. technical background [0002] The so-called tourbillon in mechanical watches is a device that reduces isochronous errors. The feature of this device is that a movable bracket is provided in the watch mechanism, which supports all escapement components, and the balance spring system and The escapement is placed in the bracket. The mechanism can also rotate with the bracket while it is running by itself, and when it is in the vertical position, it rotates to eliminate the variation, minimize the position error of the clock caused by the gravity of the earth and improve the accuracy of travel time. However, while the tourbillon improves the accuracy of travel time, it brings greater difficulty to the design of the stop mechanism. [0003] The balance stop device in the tourbillon watch is used to stop the swing of the bal...

AI Technical Summary

Problems solved by technology

However, the disadvantages of this mechanism are: firstly, the manufacture of the active spring is complicated; secondly, a spring of this length is prone to deformation of the spring through the influence of vibrations applied to the watch, thereby inadvertently braking the balance wheel; The mechanism achieves the purpose of stopping seconds by directly controlling the balance wheel. Due to its mechanism characteristics, the tourbillon has more active units. Direct control of the balance wheel will have a relatively large impact on the balance wheel, which in turn will affect the tourbillon system. balance

Although this mechanism overcomes the complexity of manufacturing the active spring, the longer spring is easily deformed by the vibration applied to the watch, which will inadvertently brake the balance wheel, and this mechanism also directly controls the balance wheel stop second, It has a greater impact on the balance wheel, which in turn will affect the balance of the tourbillon system

Moreover, the mechanism involved in this patent is relatively complicated, which increases the weight of the tourbillon system, thereby increasing the requirements for the output torque of the mainspring of the movement.

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