Gear for watch movement
AssigneeRonda AG
InventorsEric Marki, Michiel Groothuis
Life of this patent
Estimating the term…
Abstract
Gear for day of the month display mechanism in a watch movement, including: a driving organ (1), a driven organ (50), characterized in that said driving organ (1) is provided with z1 first teeth (120) and z2 second teeth (121), the height of the second teeth (121) being lower than the height of the first teeth (120), and in that said driven organ (50) is provided with z3 third teeth (501) and z4 fourth teeth (503), the height of the third teeth (501) being greater than the height of the fourth teeth (503), the height of the z1 first teeth (120) allowing the z3 third teeth (501) as well as the z4 fourth teeth (503) to be driven, the height of the z2 second teeth (121) allowing however only the z3 third teeth (501) but not the z4 fourth teeth (503) to be driven.
Claims28
A gear for watch movement, including:
- a driving organ, said driving organ being provided with z1 first teeth and z2 second teeth, the height and/or position of the second teeth being lower than the height of the first teeth
- a driven organ, said driven organ being provided with z3 third teeth and z4 fourth teeth, the height and/or position of the third teeth being greater than the height of the fourth teeth,
- the z1 first teeth allowing the z3 third teeth as well as the z4 fourth teeth to be driven,
- the z2 second teeth allowing however only the z3 third teeth but not the z4 fourth teeth to be driven.
A gear for watch movement, including:
- a driving organ, said driving organ being provided with z1 first teeth and z2 second teeth, the height and/or position of the second teeth being lower than the height of the first teeth
- a driven organ, said driven organ being provided with z3 third teeth and z4 fourth teeth, the height and/or position of the third teeth being greater than the height of the fourth teeth,
- the z1 first teeth allowing the z3 third teeth as well as the z4 fourth teeth to be driven,
- the z2 second teeth allowing however only the z3 third teeth but not the z4 fourth teeth to be driven.
A gear for watch movement, including:
- a rotating driving organ, having first and second teeth with at least two different heights and/or shapes
- a rotating driven organ, having third and fourth teeth with at least two different heights and/or shapes,
- wherein the first teeth of the rotating driving organ allowing the teeth of both height and/or shape of the rotating driven organ to be driven,
- whereas the second teeth of the rotating driving organ allowing only the first teeth of the rotating driven organ to be rotated which are greater in height and/or shape, but not the second teeth of the rotating driven organ,
- said teeth being arranged so that, after a certain number of indexing steps, each of the teeth of at least one of said organs always gears with the same tooth of the other of said organs.
Dependencies are inferred from the claim text.