Front wheel stabilizing device for an electric motor-driven...

Details Front wheel stabilizing device for an electric motor-driven... Front wheel stabilizing device for an electric motor-driven...

2007-11-13

2007-11-13

Shriver, J. Allen (Department: 3618)

Motor vehicles

Power

Electric

C180S907000, C280S304100, C280S250100

Reexamination Certificate

active

11284715

ABSTRACT:
A front wheel stabilizing device includes a mount adapted to be secured to a main frame of an electric motor-driven wheeled vehicle, and an axle disposed between two side plates of the mount. A wheel mounting member has a tubular head which is rotatably sleeved on the axle, and a cantilever arm which extends from the tubular head forwardly to terminate at a wheel-carrying end for mounting a stabilizing wheel thereon. The stabilizing wheel can yield under a jolting force that arises as a result of movement of the stabilizing wheel over an uneven ground so as to displace from a more tractive position to a less tractive position. A torsion spring has a coiled segment which is wound on the tubular head, and two urging ends which abut against the mount and the cantilever arm, respectively, so as to bias the stabilizing wheel downwardly, thereby restoring the stabilizing wheel from the less tractive position back to the more tractive position.

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patent: 6752230 (2004-06-01), Huang

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