EP 0290982 B1 19901107 - TIME PIECE AND METHOD OF MANUFACTURING IT
Title (en)
TIME PIECE AND METHOD OF MANUFACTURING IT
Publication
Application
Priority
CH 181587 A 19870512
Abstract (en)
[origin: US4922474A] The chronograph hand (8) mounted on a shaft (7) carries a wheel (11) coaxial to a wheel (13) mounted on the end of a small-seconds shaft (2) extending beyond the frame (1) of the clockwork. A double sliding pinion (16-17), carried by a lever (14), can be brought into a position in which it meshes with the wheels (11 and 13), respectively, that renders them rigid to each other, thus ensuring the driving of the hand (8), or to be disengaged therefrom, that produces the uncoupling of this hand. The shaft (7) is maintained by a flexible bridge (9) of this mechanism which acts axially on the said shaft for pressing resiliently a resetting heart (10) it carries against the bearing (6) supporting the said shaft (7). A friction is thus produced on the shaft (7) which prevents any play of the hand (8). The wheel (11) is freely mounted on the shaft (7) it drives through the intermediary of a friction produced by a cumbered washer (12) owing to which the resetting can be effected without wheel (11) be driven.
IPC 1-7
IPC 8 full level
G04F 7/08 (2006.01)
CPC (source: EP US)
G04F 7/0814 (2013.01 - EP US); G04F 7/0847 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE ES FR GB IT NL
DOCDB simple family (publication)
EP 0290982 A1 19881117; EP 0290982 B1 19901107; CA 1292123 C 19911119; CH 670187G A3 19890531; DE 3860980 D1 19901213; ES 2018594 B3 19910416; US 4922474 A 19900501
DOCDB simple family (application)
EP 88107359 A 19880507; CA 566658 A 19880512; CH 181587 A 19870512; DE 3860980 T 19880507; ES 88107359 T 19880507; US 19070888 A 19880506