Braking arrangement for a gear wheel

Details Braking arrangement for a gear wheel Braking arrangement for a gear wheel

1991-10-11

1993-10-12

Roskoski, Bernard

Horology: time measuring systems or devices

Arbor and pinion details

368323, 368184, 368220, 368223, G04B 2900

Patent

active

052532313

ABSTRACT:
This invention concerns a braking arrangement for a gear wheel. The purpose of the invention is to brake the last wheel in a gear train in order to avoid the latter rotating through unequal angular steps. Such purpose is achieved with the help of an element forming a brake (1) fixed onto a first wheel set (2) of a gear train in a manner to be driven in rotation by the latter, such element (1) exhibiting a friction surface (39) at its periphery brought to bear elastically onto a second wheel set (6) meshing with the first so as to brake such second wheel set (6). The invention is more especially applied to horological and chronograph gearing.

REFERENCES:
patent: 3610753 (1971-10-01), Neubauer
patent: 3695033 (1972-10-01), Fujimori
patent: 4684263 (1987-08-01), Etienne
patent: 4794576 (1988-12-01), Schwartz et al.

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