| 摘要 |
A running assisting device can be formed by left and right paired halves each being worn on one foot of a rider and advanced with a rider alternately depressing stepping plates of the device, each half comprising frames (2, 3) each supporting a rear wheel (10) and front wheels (11) respectively; a stepping plate (1) moveable upward and downward relative to the frames (2, 3) on which a foot or a shoe (7) of a rider is laid; an energy storing device (6) including a spring (36) adapted to be compressed during the downward motion of the stepping plate (1) and returned to its extended condition when the stepping plate (1) reaches its lowermost or its nearly lowermost position for advancing the running assisting device by converting the returning force of the spring (36) to the rotational force of the rear wheel (10); and a power transmitting mechanism for permitting the downward motion of the stepping plate (1) to be transmitted to the rear wheel (10) via the energy storing device (6) but cutting off the upward motion of the stepping plate (1) from being transmitted to the rear wheel (10) characterized in that each half further comprises; a locking device (40) for limiting the upward motion of the stepping plate (1) by anchoring the stepping plate (1) to the frames (2, 3) when the stepping plate (1) has reached its lowermost or its nearly lowermost position, and an unlocking device (45) for permitting the upward motion of the stepping plate (1) by releasing the anchoring of the locking device (40) during the compressed energy storing device (6) returns to its extended position.
|
