Gear for day/date mechanism

Details Gear for day/date mechanism Gear for day/date mechanism

G - Physics

04

B

58/22

G04B 19/00 (2006.01) F16H 27/08 (2006.01) F16H 55/16 (2006.01) G04B 13/02 (2006.01) G04C 17/00 (2006.01)

Patent

CA 1184043

PI-876 INDEXING GEAR FOR TIMEKEEPING DEVICES ABSTRACT OF THE DISCLOSURE The invention relates to an indexing gear for timekeeping devices comprising a toothed wheel having an indexing tooth, a pinion indexable two teeth at a time by means of the indexing tooth of the indexing wheel, said pinion being secured against rotation between indexing operations by a shoulder of the indexing wheel, and also comprising a driven toothed wheel meshing with the pinion, the pinion having, according to the invention, slotted teeth or teeth elastically deformable in some other way, which interact with the shoulder of the indexing wheel and the teeth of the toothed wheel, such that a gear drive is obtained which is completely without any play.

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