| 摘要 |
PURPOSE: Single piece wheel set for a clock piece is provided to reduce the height of a tool since a second escape wheel engages with a middle wheel and works as an escape pinion. CONSTITUTION: Single piece wheel set(100) for a clock piece comprises a first tooth unit(108), and a second tooth unit(113). The first and second tooth units are formed around a plate(103). The first tooth unit is arranged to cooperate with a pin and at least a first pallet-stone series. The second tooth unit is arranged to cooperate with a second pallet-stone series. The second tooth unit is formed as single piece with the plate of the first tooth unit. The second tooth unit reduces any misalignment of other tooth units relative to the first tooth unit. The second tooth unit reduces the entire mass of an escape wheel set. |
