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Escapements, watch movements and clocks

An escapement and clock technology, which is applied to escapement, clocks, mechanically driven clocks, etc., can solve the problems of reduced power transmission efficiency and increased energy, and achieves the effect of excellent transmission efficiency

Active Publication Date: 2021-12-28
SEIKO INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the energy required to release the stop of the escape wheel increases, resulting in a decrease in power transmission efficiency.
[0018] In addition, since the first stop fork, the second stop and the first impact fork are assembled into a common pallet fork, it is impossible to make the pallet move according to the most suitable working angles of impact and stop, leading to a reduction in power transmission efficiency

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0055] Next, a first embodiment of the present invention will be described with reference to the drawings. In addition, in this embodiment, as an example of a timepiece, a mechanical timepiece will be described as an example. In addition, in each drawing, the scale of each member is changed as necessary in order to make each member a recognizable size.

[0056] (Basic structure of a clock)

[0057] Generally, a mechanical body including a driving part of a timepiece is called a "movement". The finished state of attaching the dial and hands to the movement and putting it in the watch case is called the "finished product" of the watch.

[0058] Of the two sides of the bottom plate constituting the timepiece substrate, the side where the glass of the timepiece case exists (that is, the side where the dial exists) is referred to as the “back side” of the movement. In addition, the side where the case back of the timepiece case exists (ie, the side opposite to the dial) among bo...

no. 2 Embodiment approach

[0208] Next, a second embodiment of the present invention will be described with reference to the drawings. In addition, in this second embodiment, the same reference numerals are assigned to the same components as those of the first embodiment, and description thereof will be omitted.

[0209] In the first embodiment, the impact pallet fork 51 is positioned by a pair of stopper pins 102 and 103 , but in the second embodiment, the impact pallet fork 51 is positioned by a single stopper pin. In addition, in the first embodiment, the stop pallet fork 53 is disposed below the impact pallet fork 51 , but in the second embodiment, the impact pallet fork 51 and the stop pallet fork 53 are arranged in the same position. on flat surface.

[0210] Such as Figure 18 and Figure 19 As shown, in the escapement 110 of this embodiment, a positioning hole 112 through which the limit pin 111 is inserted is formed on the impact pallet fork 51 .

[0211] In the impact pallet 51 , a connect...

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PUM

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Abstract

The present invention provides an escapement, a movement for a timepiece, and a timepiece having excellent power transmission efficiency. The escapement machine (13) has: an escape wheel (40), which is rotated by the transmitted power; and an impact pallet unit (52) and a stop pallet unit (54), which are connected to each other to be able to Relatively displaced, rotated according to the rotation of the balance wheel with hairspring (30), the stop pallet fork unit is composed of at least one pallet fork (53), and has an escape gear (42) that can move relative to the escape wheel ) to engage / disengage the stop fork tiles (62, 63), the impact pallet fork unit is composed of at least one pallet fork (51), and has the ability to contact the escapement gear when the stop fork tile is not engaged. The first impact fork (60) is equipped with the second impact fork (61) on the balance wheel hairspring mechanism, and the second impact fork can be in contact with the escapement gear when the first impact fork is not in contact.

Description

technical field [0001] The present invention relates to an escapement, a watch movement, and a watch. Background technique [0002] In general, a mechanical timepiece has an escapement that transmits power for reciprocating rotation to a balance with hairspring, and controls a wheel train with constant vibration using regular reciprocating rotation of the balance with hairspring. Conventionally, this type of escapement has been repeatedly improved and developed, and various types have been proposed so far. [0003] For example, an escapement starting from a natural escapement designed by Breguet is known as one of highly efficient and durable escapements. The escapement of this system has the following characteristics: the escapement has two escape wheels, and the balance spring mechanism is alternately subjected to direct impact from the two escape wheels and indirect impact via the pallet fork. The impact transmits power to the balance with hairspring. [0004] In parti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G04B15/14
CPCG04B15/08G04B15/14
Inventor 藤枝久
Owner SEIKO INSTR INC