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Escapements, watch movements and clocks

An escapement and clock technology, which is applied to the escapement, clock, clock driving mechanism, etc., can solve the problems of power transmission loss, increase power transmission efficiency, unstable movement and falling of mechanical clocks, etc., and achieve stable movement. The effect of sexual suppression and shortening of shaking time

Active Publication Date: 2018-12-04
SEIKO INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Therefore, when the input is disturbed when the pallet fork is released from the engagement with the second escape wheel, the second escape wheel will vibrate, and the operation of the mechanical timepiece may become unstable.
In addition, considering the play of the amount of backlash of the second escape wheel when the pallet fork is released from the second escape wheel (hereinafter, simply referred to as "the play of the second escape wheel"), it is necessary to secure the second escape wheel. In the case of a large amount of engagement between the first escape wheel and the second escape wheel, the loss of power transmission may increase and the power transmission efficiency will decrease.

Method used

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  • Escapements, watch movements and clocks
  • Escapements, watch movements and clocks
  • Escapements, watch movements and clocks

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no. 2 approach

[0131] Next, the escapement 1 of the second embodiment will be described.

[0132] Figure 13 It is a plan view of the escapement 1 of the second embodiment.

[0133] In the first embodiment, the first impact shoe 46 and the second impact shoe 47 are provided on the pallet 40 to constitute a so-called indirect impact type escapement 1 .

[0134] In contrast, as Figure 13 As shown, the difference between the escapement 1 of the second embodiment and the first embodiment is that a first impact fork 46 and a second impact fork 47 are arranged on the pendulum seat 30, forming a so-called direct impact type The escapement 1. In addition, below, description is abbreviate|omitted about the same structural part as 1st Embodiment.

[0135] The second escape wheel 20 has a second escape wheel 24 . The second escape tooth portion 24 a of the second escape gear 24 is capable of contacting the second impact fork shoe 47 and capable of engaging / disengaging with the incoming shoe 48 an...

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Abstract

The present invention provides an escapement, a movement for a timepiece, and a timepiece capable of suppressing a decrease in power transmission efficiency while shortening the wobbling time of a second escape wheel to secure movement stability. The escapement (1) is characterized by having: a first impact yoke (46) and a second impact yoke (47), which are used to impart power to the balance with hairspring (5); a pallet (40), which It has an inlet shoe (48) and an outlet shoe (49), and can rotate around the pallet shaft (43); the first escape wheel (10), which is powered, and has the ability to interact with the first impact shoe (46) ) in contact with the first escape wheel (15) for impact; and a second escape wheel (20), which meshes with the first escape wheel (10) and has a The escapement gear (25) for the second impact and the escapement gear (26) for stopping can be engaged / disengaged with the shoe in (48) and the shoe out (49).

Description

technical field [0001] The present invention relates to an escapement, a watch movement, and a watch. Background technique [0002] The mechanical timepiece has an escapement for controlling the rotation of a barrel, a second wheel, a third wheel, and a fourth wheel constituting a dial train. A general escapement mainly includes: an escape wheel, a balance seat arranged on a balance with hairspring rotating around the balance shaft, and a pallet that can rotate around the pallet shaft. [0003] The oscillating base has a shock pin that is in contact with the pallet fork, and uses the power accumulated in the hairspring to rotate together with the balance with hairspring. The pallet fork has an inlet shoe and an outlet shoe that can engage / disengage with the teeth of the escape wheel, and the pallet fork is rotated around the pallet axis by the energy of the hairspring transmitted through the impact pin. [0004] Conventionally, various types of escapements have been propos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G04B15/06G04B15/14
CPCG04B1/225G04B15/08G04B15/14
Inventor 藤枝久
Owner SEIKO INSTR INC
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