Title:
スイスレバー脱進機
Document Type and Number:
Japanese Patent JP5859197
Kind Code:
B2
Abstract:
The escapement has an escapement wheel with teeth, and a lever provided with entry and exit pallets alternately engaged with the teeth. The lever comprises a fork regularly engaged with a dowel pin of a plate secured to a shaft of a crank regulator. The relative width of each of the pallets, expressed as a percentage of the cumulative arc length of one of the teeth and one of the pallets, measured on circumference of the wheel is a specific formula constituted of parameters of arc widths of the exit and entry pallets and arc width of the teeth and less than or equal to 45 percent.
Inventors:
Rafael Seteur-Baron
Alexander ciuvet
Alexander ciuvet
Application Number:
JP2010278078A
Publication Date:
February 10, 2016
Filing Date:
December 14, 2010
Export Citation:
Assignee:
ROLEX SA
International Classes:
G04B15/14
Domestic Patent References:
| JP20083026A | ||||
| JP4930470B1 | ||||
| JP392844B1 |
Foreign References:
| EP1892589A1 | ||||
| US3685279 | ||||
| US3628327 |
Other References:
Henry B.Fried,The Watch Escapement,米国,Book Craftsmen Associates,Inc.,1959年,第10~19頁
Attorney, Agent or Firm:
Patent Business Corporation Daiichi International Patent Office
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