Date and moon phase display mechanism for watches
AssigneeETA SA Manufacture Horlogere Suisse
InventorJulien Saglini
Life of this patent
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Abstract
A date and moon phase display mechanism for watches, including a date ring with an inner toothing arranged to be driven by a timepiece movement, or arranged to cooperate with a date ring with an inner toothing of a timepiece movement, this mechanism including a moon display wheel set held in position by a moon jumper, this mechanism including drive devices, which are actuated by this inner toothing during each rotation of this date ring, and which are arranged to drive this moon display wheel set by a first constant angular pitch during each this rotation of this date ring.
Claims13
A date and moon phase display mechanism for watches, comprising:
- a moon display wheel set held in position by a moon jumper;
- and
- drive means, which is arranged to be actuated by an inner toothing during each rotation of a date ring, and which is arranged to drive said moon display wheel set by a first constant angular pitch during each said rotation of said date ring, wherein
- said drive means includes an entry lever that pivots about an entry axis and includes a first end which is arranged to cooperate with said inner toothing, and a second end which is arranged to engage and push a bearing surface comprised in a main lever that pivots about a main axis and is arranged to directly or indirectly control a rotation of said moon display wheel set, and
- the mechanism
- includes the date ring with the inner toothing arranged to be driven by a timepiece movement, or
- is arranged to cooperate with the date ring with the inner toothing of the timepiece movement.
Dependencies are inferred from the claim text.