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Resonator having a tuning fork for a mechanical clock movement

A watch movement and resonator technology, applied to electromechanical clocks, mechanically driven clocks, clocks, etc., can solve problems such as unfavorable precise operation

Active Publication Date: 2014-06-11
THE SWATCH GRP RES & DEVELONMENT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Therefore, the type of interaction used in this structure is similar to a contact, which is disadvantageous from the point of view of precision operation

Method used

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  • Resonator having a tuning fork for a mechanical clock movement
  • Resonator having a tuning fork for a mechanical clock movement
  • Resonator having a tuning fork for a mechanical clock movement

Examples

Experimental program
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Effect test

Embodiment Construction

[0051] Figure 1a and 1b A schematic diagram of the limitations considered when implementing the invention, more particularly in terms of geometry, ensuring the correct cooperation between the tuning fork prong and the escapement pallet assembly fork.

[0052] Figure 1a The movement of a pallet assembly of radius R is roughly illustrated to determine the movement of its tip between the angles of rotation it covers, between the first and second radii, in the direction of the second radius, i.e. approximately What relationship exists along the axis of the tuning fork fork.

[0053] Thick lines 201 and 202 illustrate the first and second positions, generally indicated by thin lines 203 and 204 , that the pallet assembly can adopt when it pivots in response to a push transmitted by the tuning fork tine.

[0054] More specifically, when the pallet assembly is in position on line 201, the tuning fork prong (line 203) needs to be able to move past the first of its tines without tou...

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PUM

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Abstract

The invention relates to a mechanical resonator having a tuning fork for a clock movement having a lever escapement, comprising a tuning-fork oscillator (1), at least one first arm (3) of which is to be oscillated on either side of a first axis and has at least one first pin combined with at least one first fork tooth of an anchor (10, 100) so as to pivot the latter between first and second angular positions, and alternately lock and release an escape wheel (24). The resonator comprises a conversion member (6, 7, 8, 15, 16) which is secured to the first pin and which is arranged to: convert the oscillations of the first arm (3) of the oscillator (1) into rotational movements of the anchor (10, 100) by transmitting first pulses to the latter; and transmit mechanical energy from the anchor (10, 100) to the first arm (3) of the oscillator (1) in the form of pulses such that the first tooth has an amplitude of movement that is either axial or substantially in the direction of the first axis during the pivoting of the anchor, said amplitude of movement being greater than the amplitude of movement of the first pin substantially in the direction of the first axis.

Description

technical field [0001] The invention relates to a tuning fork mechanical resonator for a mechanical timepiece movement with free escapement, comprising a tuning fork type oscillator, wherein at least one first oscillatory prong is about a first axis Oscillating and supporting at least one first pin associated with at least one first tine of a pallet assembly to cause the assembly to pivot between first and second angular positions and alternately lock and release an escapement wheel. [0002] In a known manner, this mechanism makes this possible: in combination with a mechanical energy source, the tuning fork maintains the oscillation of the oscillating part, thereby defining a resonator. [0003] The high quality factor of an oscillating component such as a tuning fork, ie approximately 10 to 50 times higher than that of a conventional balance spring oscillating component, makes it attractive for watchmaking applications. [0004] Furthermore, the invention relates to a tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04B15/08G04B15/14G04B17/04
CPCG04B15/14G04B17/045G04B17/00G04B15/08G04C5/005
Inventor 宜兰·瓦尔迪
Owner THE SWATCH GRP RES & DEVELONMENT LTD
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