Invention Grant
US09411311B2 Device for driving an analogue indicator, particularly a date ring
有权
用于驱动模拟指示器的装置,特别是日期环
- Patent Title: Device for driving an analogue indicator, particularly a date ring
- Patent Title (中): 用于驱动模拟指示器的装置,特别是日期环
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Application No.: US14637836Application Date: 2015-03-04
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Publication No.: US09411311B2Publication Date: 2016-08-09
- Inventor: Baptist Wyssbrod , Julien Christan
- Applicant: ETA SA Manufacture Horlogere Suisse
- Applicant Address: CH Grenchen
- Assignee: ETA SA Manufacture Horlogere Suisse
- Current Assignee: ETA SA Manufacture Horlogere Suisse
- Current Assignee Address: CH Grenchen
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP14158625 20140310
- Main IPC: G04B13/02
- IPC: G04B13/02 ; G04C17/00

Abstract:
The timepiece movement is fitted with an analogue indicator (6), particularly a date ring including a toothing (18) mechanically coupled to a drive device, which includes a motor and a drive wheel and pinion (8) and a support for the drive wheel and pinion. This support is pivotally mounted on a main plate about a first axis and it defines a second axis, remote from the first axis, about which the drive wheel and pinion is rotatably mounted. The drive device further includes a strip spring (40) exerting a force on the support such that the meshing means of the drive wheel and pinion press against the toothing of the analogue indicator. The meshing means and the toothing have respective profiles selected such that, at least in a plurality of distinct display positions of the analogue indicator, the drive wheel and pinion and the analogue indicator mesh with each other with substantially no play under the action of the strip spring.
Public/Granted literature
- US20150253732A1 DEVICE FOR DRIVING AN ANALOGUE INDICATOR, PARTICULARLY A DATE RING Public/Granted day:2015-09-10
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