US 4,766,579 AGranted

Timepiece having a control stem correcting mechanism with at least two setting positions

AssigneeComplications S.A.

InventorJorg Sporring

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Abstract

A basic clockwork, initially arranged in such a way as to comprise two supplementary indicators, of the date and of the days of the week, which have been removed, is provided with an additional module carrying supplementary indicators, which can number two, three or even four. These indicators being separate from the basic clockwork, their position can be chosen very freely by a constructor. In order to prevent having to provide the clockwork with one or several supplementary control members, for the correction of said indicators, a correcting mechanism of the basic clockwork, comprising a control stem operating a sliding pinion is used. A shaft of the sliding pinion has been extended up to a frame of the additional module and carries a pinion meshing, according to the sense in which the control stem is operated, either with a wheel belonging to a correcting gear train of one of the supplementary indicators, or with a pinion belonging to a correcting gear train of another supplementary indicator.

Claims9

Dependent claims

Clockwork for a timepiece comprising a basic clockwork provided with a manually operable control mechanism having a control stem able to occupy at least two axial positions, a first one of which positions serves in the setting of the time indicators and a second one of which positions serves in the correction of other indicating members by means of a correcting mechanism having a first sliding pinion mounted on said control stem, and an additional module secured to said basic clockwork carrying a driving mechanism for at least two indicators, a second sliding pinion of said correcting mechanism of the basic clockwork extending up to said additional module and carrying, at the level of this additional module, a pinion operatively meshing alternatively according to the sense in which the control stem is operated, with a correction gear train of one or of the other of said two indicators in order to permit correction thereof, in which said additional module is mounted on said basic clockwork, said first sliding pinion of said correcting mechanism engaging said second sliding pinion mounted on a shaft extending substantially perpendicular to the sliding movement of said correcting mechanism first sliding pinion, said shaft carrying said operatively meshing pinion for correcting said other two indicators.

Dependencies are inferred from the claim text.