CPC B62B 5/0043 (2013.01) [B60S 1/68 (2013.01); B62B 1/12 (2013.01); B62B 5/0066 (2013.01); B62B 5/0069 (2013.01); B62B 5/04 (2013.01); B62B 5/0438 (2013.01); B62B 5/06 (2013.01); B62D 51/065 (2013.01); B62B 2005/0471 (2013.01); B62B 2202/42 (2013.01)] | 21 Claims |
1. A weight-bearing device comprising:
a single wheel configured to contact the ground;
a motor having a power source and an output shaft;
a first gear rotationally fixed to the output shaft;
a second gear connected to the single wheel with a unidirectional torque transfer device, the second gear and the first gear having a gear ratio greater than 6 to 1;
a chain between the first gear and the second gear;
a frame including a weight-bearing surface tangential to the single wheel, the frame connected to the single wheel;
a pair of handles connected to the frame, the pair of handles including:
a first climbing handle connected to a first terminal end of the pair of handles and oriented approximately perpendicular to one of the pair of handles; and
a second climbing handle connected to a second terminal end of the pair of handles and oriented approximately perpendicular to another of the pair of handles; and
a twist throttle configured to control the motor.
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