Title:
TIMEPIECE BRAKE WHEEL ASSEMBLY
Document Type and Number:
Japanese Patent JP2016024201
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a timepiece brake wheel assembly that addresses the problem of an angular play in a gear train, through the use of friction.SOLUTION: A brake wheel assembly 1 includes an arbor 2. The arbor 2 comprises a first surface 3 cooperating, to guide pivoting, with a second surface 4 of a wheel 5 pivotally mounted on the arbor 2 around a pivot axis D. The second surface 4 includes one brake surface 11 of a brake shoe 12 subjected to the action of a first spring 13, the first spring 13 is formed in one-piece with the wheel 5 and is arranged on the first surface 3 to exert radial force to the pivot D. The assembly 1 includes a notch 23 for forming a comb or toothing arranged to retain a finger-piece 15 for adjusting a discrete value of friction exerted by the brake surface 11 on the first surface 3. The assembly 1 is arranged to be included in a timepiece mechanism or in a timepiece.SELECTED DRAWING: Figure 1
Inventors:
RAPHAEL COURVOISIER
Application Number:
JP2015144643A
Publication Date:
February 08, 2016
Filing Date:
July 22, 2015
Export Citation:
Assignee:
ETA SA MFT HORLOGERE SUISSE
International Classes:
G04B13/02
Domestic Patent References:
| JP2012168178A | 2012-09-06 |
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Shigeki Yamakawa
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