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Mechanical oscillator system

A technology of mechanical oscillation and precision instruments, which is applied in the direction of mechanical equipment, mechanically driven clocks, instruments, etc., and can solve problems such as the influence of the oscillation period

Inactive Publication Date: 2009-08-05
吉迪恩・莱文斯顿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the period of oscillation is still affected by changes in r and E maintaining the relationship shown by:

Method used

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  • Mechanical oscillator system
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Embodiment Construction

[0045] Embodiments of the present invention will now be described.

[0046] A mechanical oscillating system for a clockwork or other precision instrument comprises a balance wheel in the form of a balance wheel, and a mainspring arranged to cause said balance wheel to oscillate from side to side on an axis of rotation.

[0047] The balance wheel is made of non-magnetic ceramic with a positive coefficient of thermal expansion and less than +6×10 -6 K-1 , most preferably less than 1×10 -6 K -1 . Quartz is an example of a suitable material. It is preferred to use high-purity fused quartz, the coefficient of thermal expansion of which is less than or equal to +0.54×10 -6 K -1 . Other ceramic materials available include aluminum nitride (+5.2), aluminosilicate glass (+5), boron carbide (+5.6), boron nitride (+1.6), silicon oxide (+0.75), hot pressed Or reactively bonded silicon (+3.5), and zirconia (stabilized) (+5); the numbers in parentheses are the magnitudes of the therm...

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Abstract

A mechanical oscillator system for a clockwork or other precision instrument, consisting of a balance wheel and a helical or helical spring. The mainspring is made of a non-magnetic composite, polymer, carbon or ceramic material, preferably a composite of carbon fibers in a polymer, carbon or ceramic matrix; the balance wheel is made of non-magnetic ceramic. The spring and balance have similar values ​​for the coefficient of thermal expansion, which is very small and stable over a wide temperature range. The expansion coefficients of the mainspring and the balance wheel have opposite signs in the axial direction and compensate each other. These materials are less dense than metals currently used. With this combination of materials, significant advantages and levels of accuracy and stability over metallic oscillator systems can be achieved.

Description

technical field [0001] The present invention relates to a mechanical oscillator system, including a balance wheel (balance) and a balance spring (balance spring), for use in clockworks (such as timekeeping devices) or other precision instruments. It is believed that the mechanical oscillator system of the present invention is particularly suitable for oscillator systems in mechanical watches, although the invention is not limited thereto. Background technique [0002] Metal alloys, especially Fe-Ni or Ni, Cu-Be, Au-Cu alloys, have been used in previous mechanisms for the mainspring and balance wheel. In the most general terms, one of the aspects of the invention proposes that the balance wheel is made of a non-magnetic ceramic material, and that the spring is non-magnetic and made of composite materials or polymers (including thermosetting and thermoplastic polymers, esters and phenolic resins) , carbon or (non-magnetic) ceramic material with properties suitable for compens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G04B17/06G04B17/22F16F1/366C04B35/80C04B35/83F16F1/06F16F1/10
CPCG04B17/066G04B17/227Y10T74/10G04B17/063F16F1/3665
Inventor 吉迪恩·莱文斯顿
Owner 吉迪恩・莱文斯顿