Machine element or mechanism – Gearing – Reversal of direction of power flow changes power...
Patent
1991-04-30
1992-12-01
Braun, Leslie A.
Machine element or mechanism
Gearing
Reversal of direction of power flow changes power...
74143, 74377, 2802501, F16H 2702, B62M 114
Patent
active
051671689
ABSTRACT:
A driving gear for a muscle power driven vehicle, such as a wheel chair, comprising an input shaft drivable by means of a lever, and adapted to be coupled through at least two freewheel clutches to an output shaft arranged to be connected to a wheel hub of the vehicle, wherein the driving gear (4) is housed in a closed housing (11, 12) which is arranged to be coupled through said output shaft (22) to the wheel hub (5) of the vehicle, said input shaft (7) being fixedly coupled to an input gear wheel (14) meshing with two separate intermediate gear wheels (16, 16') adapted to be connected through freewheel clutches operative in opposite directions of rotation to one (20) or the other (20') of two meshing change gear wheels, one of which also meshes with a first output gear wheel (21) mounted on the output shaft.
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Braun Leslie A.
Revab B.V.
Wittels Daniel
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