Breitling Ag

Cedric Jacot

Jacques Gabathuler

Trung Thanh Nguyen

This device for the simultaneous zero-resetting of two counters, the pivot axes of which are fixedly connected to respective heart-shaped zero-resetting cams (), comprises a zero-resetting lever () containing two hammers (), means () for exerting upon this lever () a torque for pressing the two hammers () against the zero-resetting cams (), and articulation means () for articulating these hammers relative to the lever (). These articulation means comprise two pins (), one of which () is engaged in a guide slot with limited amplitude (), orientated in order that the direction of the perpendicular, dropped from the axis of the pin () onto this guide slot (), intersects the straight line joining the axes () of the zero-resetting cams () at a point capable of improving the distribution of the torque transmitted to these cams ().

Zero-resetting device for two time counters

This date mechanism comprises a calendar mobile (), a driving mobile () an instantaneous-jump cam (), a finger () kinematically connected to this cam () in order to drive the calendar mobile (). The driving finger () is borne by a release member () which is mounted pivotably about two axes (), one () of which is that of the driving mobile (), this release member () having an opening () configured to allow an angular displacement about the second of these two axes (), whereby the driving finger () can be released from the toothing () of the calendar ring while the calendar is corrected. A return spring () tends to rotate the driving finger () about the second pivot axis () in order to bring it to butt against an edge of the opening (), a position in which the driving finger is engaged with the toothing of the calendar ring ().

Growing community of inventors

La Chaux-de-Fonds, Switzerland

Cedric Jacot