Push-piece winding button control device for a portable object of small dimensions

US10768577B2 · kind B2 · utility

Assignee

• ETA SA MANUFACTURING HORLOGERE SUISSE · CH

Inventors

• Pascal Lagorgette · Bienne, CH
• Damien Schmutz · Salavaux, CH
• Raphael Balmer · Courchapoix, CH
• Vittorio Zanesco · Neuchâtel, CH

Key dates

• Filing date: Jun 7, 2018
• Grant date: Sep 8, 2020
• Expiry date: Dec 21, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H2300/016
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A push-piece winding button control device is for a portable object of small dimensions. This device includes a pivoting control stem axially movable between at least a transitory first position and a stable second position. The device further includes a position indexing plate arranged to be integral in translation with the control stem, while keeping the same orientation relative to the frame. The device also includes a cam follower arranged to cooperate with a longitudinal cam path formed in the position indexing plate. The cam path includes a recess defining the stable position of the control stem, and a ramp-shaped profile portion which rises from the recess towards the transitory position.