Invention Grant
US08614931B2 Timepiece movement comprising a module fitted with a wheel set meshing with another wheel set pivoting in a base on which the module is mounted
有权
时计运动包括装配有与在其上安装模块的基座中枢转的另一轮组啮合的轮组的模块
- Patent Title: Timepiece movement comprising a module fitted with a wheel set meshing with another wheel set pivoting in a base on which the module is mounted
- Patent Title (中): 时计运动包括装配有与在其上安装模块的基座中枢转的另一轮组啮合的轮组的模块
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Application No.: US13546692Application Date: 2012-07-11
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Publication No.: US08614931B2Publication Date: 2013-12-24
- Inventor: Julien Moulin , Ivan Villar , Laurent Kaelin , Baptist Wyssbrod
- Applicant: Julien Moulin , Ivan Villar , Laurent Kaelin , Baptist Wyssbrod
- Applicant Address: CH Grenchen
- Assignee: ETA SA Manufacture Horlogere Suisse
- Current Assignee: ETA SA Manufacture Horlogere Suisse
- Current Assignee Address: CH Grenchen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP11005713 20110713
- Main IPC: G04B19/02
- IPC: G04B19/02 ; G04B15/00
Abstract:
Timepiece movement including a module fitted with a first wheel set meshing with a second wheel set, which pivots on a base on which the module is mounted. The movement includes a means of positioning the module formed by a cam, at least most of the periphery of which forms an Archimedes' spiral. The cam is arranged so as to allow the distance of centers between the first and second wheel sets to be adjusted, when the cam is rotated on itself about the center of the Archimedes' spiral. The cam is preferably calibrated. The invention also concerns a method of adjusting the distance of centers between the two wheel sets using said cam to optimise the gearing efficiency of the two wheel sets.
Public/Granted literature
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