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Anti-tripping device for timepiece escapement

A technology of anti-tripping and clocks, which is applied in the direction of escapement, clocks, stable frequency mechanisms, etc., and can solve the problem that the Irk system is not effective enough

Inactive Publication Date: 2007-06-27
MONTRES BREGUET
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second flaw is that the Irk system only works in one direction of rotation of the balance - the direction of maximum expansion of the hairspring -
In the other direction - the direction of contraction of the hairspring - the escapement can also trip, so the Irk system is still not effective enough

Method used

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  • Anti-tripping device for timepiece escapement
  • Anti-tripping device for timepiece escapement

Examples

Experimental program
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Embodiment Construction

[0012] The figures show two embodiments of the trip protection device according to the invention. Such devices are used in escapements of timepieces, especially - but not exclusively - in detent escapements, only those elements necessary for understanding the invention are shown in the drawings, namely, mainly the balance with sprung 1 . An anti-trip device is used to prevent the angular extension of the balance wheel beyond the normal operating angle or rotation angle.

[0013] This article uses a detent escapement as an example of applying an anti-trip device. This escapement mechanism also includes the following elements, which are not shown in the drawings but are clear from the above-mentioned patent No. EP-A1538491, namely: an escape wheel and a brake lever, the escape wheel having in turn resting on A generally pointed tooth on a locking pallet stone, the brake lever carrying said locking pallet stone at its first end and a first actuating dog at its second end, the f...

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Abstract

The anti-trip device for a timepiece escapement essentially includes a sprung balance ( 1 ), this device preventing the angular extension of said balance beyond a normal angle of rotation. The device is characterized in that the arbour ( 2 ) fitted to the balance ( 1 ) is provided with a pinion ( 3 ) meshing with means ( 4 ) preventing said balance from rotating beyond said normal angle of rotation, whatever the direction of said rotation.

Description

technical field [0001] The present invention relates to an anti-trip device for a timepiece escapement consisting essentially of a sprung balance, which device prevents said balance from extending angularly beyond the normal angle of rotation. Background technique [0002] Various trip arrester systems can be found in the patent literature. One such system is described in the book entitled "Der Chronometer Gang" by Prof. Alois Irk (published by Deutsche Uhrmacher Zeitung, Berlin 1923). For details, please refer to paragraphs 116 to 120 (pages 74 to 77) and Figure 25 of the above-mentioned work. Such a device is realized in an escapement comprising, inter alia, a hairspring formed by a plurality of coils, and a balance having at least one arm, the balance being pivotally mounted between a plate and a bridge . This device consists of a finger fixed to a balance arm, between which the finger can pass when the balance is in motion, and two columns, fixed to the outer coil of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04B15/00G04B15/14
CPCG04B17/26
Inventor D·莱乔特A·佐格T·科尼斯A·卡贝萨斯朱林
Owner MONTRES BREGUET
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