Mechanical timepiece fitted with a device for adjusting the shake of a rotating part or wheel set

A technology for rotating parts and clocks, which is applied to mechanically driven clocks, frequency-adjusting mechanisms, clocks, etc., and can solve problems such as unfavorable free rotation of the balance wheel.
CN1991636BActive Publication Date: 2012-02-29OMEGA SA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
OMEGA SA
Publication Date
2012-02-29

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Abstract

The timepiece includes means for adjusting the shake of a rotating part, in particular a balance, one of whose bearings is arranged in a bar ( 4 ). This bar includes a first part ( 16 ) secured to the bottom plate ( 14 ) in a rigid and invariable manner. It further includes a second part ( 18 ) associated with means for deforming the bar ( 4 ) formed by a adjusting screw ( 34 ) one end of which rests on the bottom plate. Rotating this adjusting screw varies the distance between the second part and the bottom plate by deforming the plate ( 10 ) at zones ( 22 and 24 ) of less mechanical resistance which are provided on either side of the central part ( 20 ) of the plate ( 10 ) so as to localise the deformations generated by activating the adjusting screw ( 34 ). When the plate ( 10 ) is deformed, the central part ( 20 ) where the bearing is arranged, moves relative to the bottom plate, which thus enables the shake of the rotating part to be adjusted.
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Description

technical field

[0001] The invention relates to a mechanical timepiece comprising a device for regulating the oscillation of a rotating part or of a wheel set, in particular of a balance wheel. Background technique

[0002] A device for adjusting the axial oscillation of a balance arbor by elastically deforming a balance cock is known from patent document CH 368 752 . The balance cock is formed by a base fixed to the plate and a plate in which one of the two bearings in which the balance arbor pivots is arranged. At the free end of this plate there is provided an adjusting screw whose head is on the side of the balance wheel. This screw is actuatable from the top of the plate and the head of the screw engages in the groove of a second adjacent screw that serves as an adjustment screw support. By actuating this adjusting screw, said plate of the pendulum cock is deformed by changing the height of its free end. The thickness of the plate is substantially constant, being sli...

Claims

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