Backlash-compensating toothed moving part, gear assembly and use of this gear assembly
AssigneeRolex SA
InventorJérôme Daout
Life of this patent
Estimating the term…
Abstract
The invention relates to a backlash-compensating toothed moving part, for a precision gear assembly, particularly in clock-making, in which the backlash-compensating teeth each have a section extending symmetrically to both sides of the radius of said mobile passing the tip of said teeth with an elastic connection to said mobile to give said teeth a freedom of movement in the plane of the mobile, at least one tooth in two being a backlash-compensating tooth comprising stop means (6, 7; 8a, 8b, 9a, 9b; 14; 17a; 18a; 29; 31a, 34; 31b, 35; 40) arranged to limit the freedom of movement as a function of the backlash in the gear assembly to be compensated for.
Claims13
A backlash-compensating moving part for a precision gear assembly, particularly of a timepiece,
- said moving part comprising a central plate and a plurality of teeth, wherein said teeth include a plurality of backlash-compensating teeth,
- wherein each backlash-compensating tooth has at least one portion which extends symmetrically on either side of the radius of said moving part passing through the tip of said tooth and which is connected elastically to the central plate so as to provide said portion of said tooth with a freedom of movement in the plane of this moving part,
- wherein said portion of each backlash-compensating tooth is connected to said central plate by at least one radially oriented elastic bending web,
- and wherein at least one rigid stop is provided integral with said central plate for limiting said freedom of movement of said portion of said tooth on each side of a middle rest position.
Dependencies are inferred from the claim text.