Patent ID: 9739365
Date: 2017-08-22
CPC Classifications: B62K,B62M,B63H,F16H

Claim:
1. A drive system, comprising: a) a planetary gear system comprising a plurality of planet gears rotatably mounted on a planet gear carrier, a sun gear, and a ring gear; and b) a locking means for locking and unlocking the sun gear relative to the ring gear and for allowing and preventing the planet gear carrier from rotating, the locking means comprising wherein the locking means is movable from wherein when the locking means is in the first position, the sun gear rotates in the same rotational direction as the ring gear providing a first drive direction, wherein when the locking means is in the second position, the sun gear rotates in the opposite rotational direction as the ring gear providing a second drive direction opposite to the first drive direction, and wherein the plurality of planet gears are made from a material that allows mechanical slippage or shape distortion of the planet gears relative to the any of the sun gear and the ring gear upon over-torqueing of the planetary gear system.