Stepping mechanism
AssigneePforzheimer Uhren-Rohwerke Rudolf Wehner
InventorKurt Murrle
Life of this patent
Estimating the term…
Abstract
A stepping gear is rotatably mounted with freedom of axial movement and formed with an axially facing shoulder and with teeth and tooth spaces defined by said teeth. A rotatably mounted pawl roller has first and second peripheral rings. A spring urges said pawl roller against said stepping gear. The first peripheral ring is adapted to enter one of said tooth spaces to oppose a rotation of said stepping gear. The second peripheral ring radially overlaps said shoulder to limit the freedom of axial movement of said stepping gear.
Claims5
In a stepping mechanism, in combination,
- a stepping gear rotatably mounted with freedom of axial movement and formed with an axially facing shoulder and with teeth and tooth spaces defined by said teeth,
- a rotatably mounted pawl roller having first and second peripheral rings, and
- a spring urging said pawl roller against said stepping gear,
- said first peripheral ring being adapted to enter one of said tooth spaces to oppose a rotation of said stepping gear,
- said second peripheral ring radially overlapping said shoulder to limit the freedom of axial movement of said stepping gear.
In a stepping mechanism of a watch movement, in combination
- a stepping gear rotatably mounted with freedom of axial movement and formed with an axially facing shoulder and with teeth and tooth spaces defined by said teeth,
- a rotatably mounted pawl roller having first and second peripheral rings, and
- a spring urging said pawl roller against said stepping gear,
- said first peripheral ring being adapted to enter one of said tooth spaces to oppose a rotation of said stepping gear,
- said second peripheral ring radially overlapping said shoulder to limit the freedom of axial movement of said stepping gear.
Dependencies are inferred from the claim text.