Pallet-type escapement structure of mechanical clocks and watches

Abstract

The invention discloses a pallet-type escapement structure of mechanical clocks and watches. The pallet-type escapement structure comprises an escapement wheel and mutual-linkage escapement forks cooperating with the escapement wheel; the distance and included angle formed among a first impacting pallet, first locking pallet and main escapement fork shaft of the first escapement fork are equal tothose formed among a second impacting pallet, second locking pallet and auxiliary escapement fork shaft of the second escapement fork; the distances between the main escapement fork shaft and the auxiliary escapement fork shaft and a wheel shaft of the escapement fork are the same. The pallet-type escapement structure has the advantages that due to the fact that the included angle and distance among the impacting pallet, locking pallet and fork shaft of the first escapement fork are identical to those among the impacting pallet, locking pallet and fork shaft of the second escapement fork, theposition relationships between the fork shafts and the escapement wheel are the same, and no friction exists in the impacting process, a dual-impacting escapement system with no lubricating oil assistance, the same impacting force moment, the same unlocking energy consumption, the same impacting position and a symmetric operation period can be provided. The system can automatically start, the rebanking phenomenon cannot easily occur due to the too large swing amplitude, polarization still cannot be caused under the condition of the insufficient clockwork spring force moment, and the stabilityand the precision are effectively improved.

Description

technical field [0001] The invention relates to a mechanical watch part; in particular, it relates to a fork-type escapement structure of a mechanical watch. Background technique [0002] In mechanical timepieces, the escapement mechanism transmits the energy provided by the driving system to the balance spring system at a fixed frequency to maintain the continuous operation of the system, and at the same time transmits the vibration frequency of the balance spring system to the display device to achieve the time. purpose of counting. Therefore, the escapement directly affects the stability and precision of the timepiece instrument. [0003] At present, the mainstream escapement is the Swiss lever escapement (Swiss lever escapement). figure 1 It is a schematic diagram of the plane structure of the Swiss lever escapement, such as figure 1 As shown, the proper operation of the Swiss lever escapement requires the use of lubricating oil on the impact surface of the pallet and...

AI Technical Summary

Problems solved by technology

Therefore, the maximum swing range due to different impact positions is relatively small, and the problem of easy swinging has not been solved.

In addition, the overall structure of the natural escapement is relatively complicated, and all parts are multi-layer structures, which have very high requirements in manufacturing, quality inspection and assembly, and are not suitable for mass production

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