Rolex Sa

Christian Fleury

Blaise Fracheboud

Denis Rudaz

Dominique Dubugnon

Adrien Farron

A drive device for a display element for displaying a quantity associated with time or derived from time,

Drive device for a display element

Drive device (), notably for a horology calendar system (), the drive device including a drive mobile () for driving an element () that is to be driven, notably a calendar element, the drive mobile being intended to be mounted so that it can rotate about an axis (A) and including (a) a support (); (b) a first flank (f) for driving the element that is to be driven; and (c) a second flank (f') arranged in such a way as to receive an action to retract the drive mobile, notably extending orthoradially or substantially orthoradially with respect to the axis (A); the mobile comprising a slide link (&#x2032;) connecting the second flank to the support.

Drive device for horology calendar system

Spring () for clock mechanism, the spring comprising a body () extending between a first end () of the spring and a second end () of the spring, the spring being intended to be connected mechanically to a housing at each of the first and second ends, the spring comprising, between the first and the second end, at least one member () intended to act by contact on an element () of the clock mechanism, characterized in that the body comprises a deformable zone () extending in a curve () and in that the curve comprises a first part () that is concave when viewed from the first end.

Spring for clock movement

Spring () for clock mechanism, the spring comprising a body () extending between a first end () of the spring and a second end () of the spring, the spring being intended to be mechanically connected to a housing at each of the first and second ends, the spring comprising, between the first and the second end, at least one member () intended to act by contact on an element of the clock mechanism.

Jumper () comprising a jumper body (), a jumper head (), a first connecting element () connecting the jumper head to the jumper body, the first connecting element allowing the jumper head () to move relative to the jumper body (), notably to rotate.

Jumper for clockwork movement

This timepiece comprises an indicator dial (), a days-of-the-month mechanism () comprising a days-of-the-month mobile () and a stepper drive member () for driving the days-of-the-month mobile (), a months mobile () coaxial with the days-of-the-month mobile placed beneath said dial () and connected to the days-of-the-month mobile () by stepper drive means () formed so that the months mobile () turns through an angle of 30&#xb0; each month. The dial () has twelve windows () that are angularly equidistant and the months mobile () supports a distinctive zone () of which the trajectory passes through said windows () and of which the maximum angular extent is 30&#xb0; and the minimum angular extent corresponds to that of said windows ().

Timepiece

This mechanism comprises a date runner, a months satellite with five teeth on a pitch for twelve, secured to the date runner, a fixed planetary toothset and a drive member for driving the date runner comprising two drive fingers, the first intersecting the path of the toothset of the date runner, the second intersecting the path of the toothset of the months satellite. The latter is connected to the planetary toothset by a second satellite secured to it and the number of teeth of which is equal to a multiple of twelve, the number of teeth of the planetary toothset being chosen so that one of the five teeth of the months satellite is aligned with the axes of the satellites, of the drive member and of the date runner on the 30th of each month comprising less than 31 days.

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Challex, France

Christian Fleury