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Title:
COMPONENT MADE OF MICROMACHINABLE MATERIAL FOR HIGH QUALITY FACTOR RESONATORS
Document Type and Number:
Japanese Patent JP2020046425
Kind Code:
A
Abstract:
To provide timepiece mechanisms with a high quality factor, in which the contact and detachment forces at the end of contact are insensitive to wetting agents, and especially to humidity.SOLUTION: There is provided a component 1 made of micromachinable material for a high quality factor resonator or escapement mechanism. A core 2 of the component is made of the micromachinable material and/or coated with an oxide layer 3. The core 2 or oxide layer 3 includes thereon an abrasion resistant layer 5 including a contact surface 6 cooperating with an opposing contact surface. The abrasion resistant layer is a hydrophobic self-assembled monolayer of the alkylsilane and/or fluorinated or perfluorinated or polyperfluorinated type, with a low or zero sulfur content, and arranged to repel any wetting agent from the area of contact between the contact surface 6 and the opposing contact surface.SELECTED DRAWING: Figure 7

Inventors:
SYLVAIN HUOT-MARCHAND
Application Number:
JP2019165894A
Publication Date:
March 26, 2020
Filing Date:
September 12, 2019
Export Citation:
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Assignee:
ETA SA MFT HORLOGERE SUISSE
International Classes:
G04B15/14
Attorney, Agent or Firm:
Shigeki Yamakawa
Masaki Yamakawa