Chronograph coupling mechanism

Details Chronograph coupling mechanism Chronograph coupling mechanism

2006-04-04

2006-04-04

Cuneo, Kamand (Department: 2841)

Horology: time measuring systems or devices

Time interval

Mechanical stop time type

C368S103000, C368S106000

Reexamination Certificate

active

07021818

ABSTRACT:
The coupling wheel (17) is brought into friction with an intermediate second wheel (19), or, conversely, to moved away therefrom by a fork (16) formed in the large arm (22) of an L-shaped coupling spring (20), articulated at the joining portion of the two arms (22, 24) on an adjustment plate (30), the small arm (24) of said coupling spring (20) having its end stressed by the end of a control lever (10). Means for guiding (32a, 32b) and positioning by a cam screw (38) allow the distance between the small arm (24) of the coupling spring (20) and the end of the control lever (10) to be modified, which thus allows manufacturing tolerances to be compensated for.

REFERENCES:
patent: 5113382 (1992-05-01), Bron
patent: 5220541 (1993-06-01), Vuilleumier
patent: 6761478 (2004-07-01), Schmiedchen et al.
patent: 678911 G (1991-11-01), None
patent: 1 136 894 (2001-09-01), None
European Search Report completed Jul. 9, 2003 in EP 02 07 9166.

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