Windup spring drive unit
AssigneeSeikoken Kabushiki Kaisha
InventorRyota Morikawa
Life of this patent
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Abstract
A windup spring drive unit improving the operability of winding when incorporated in an apparatus such as a toy, and increasing a degree of freedom in design. The windup spring drive unit comprises: a spring 2 as a power source; a windup shaft 3 which manually winds up the spring 2; an output shaft 4; and a gear train 5 which transmits the power of the spring 2 to the output shaft 4, these members being accommodated in a casing 6. A crown gear 8 is included in the gear train 5, the crown gear 8 has its center of rotation axis being arranged in parallel with the windup shaft 3. The output shaft 4 and the windup shaft 3 are arranged to be orthogonal to each other, and the windup shaft 3 is provided to pierce in a thin direction t of the casing 6.
Claims1
A windup spring drive unit comprising:
- a spring as a power source;
- a windup shaft for manually winding up the spring;
- an output shaft;
- and a gear train for transmitting power of the spring to the output shaft, these members being accommodated in a casing, wherein a crown gear is included in the gear train, the crown gear has its center of rotation axis being arranged in parallel with the windup shaft, the output shaft and the windup shaft are arranged to be orthogonal to each other, and the windup shaft is provided to pierce in a thin direction of the casing.
Dependencies are inferred from the claim text.