| 摘要 |
A tire changing system including a vehicle (10) having a plurality of wheels (14) and a frame (16) with a pair of longitudinal lower supports (18) horizontally situated on a lower surface thereof. Further provided are four brackets with horizontal lower (22) and upper (26) extents, each integrally connected to an intermediate extent (24) to form a Z-configuration. Four jacks (28) are coupled to each upper extent, and have an extended position upon receipt of a raise signal, and a retracted position upon receipt of a lower signal for respectively raising and lowering an associated wheel. An L-shaped lug wrench (44) is provided with a nut engagement portion and trigger for effecting rotation of the lug nuts. The tire changing system also includes a control mechanism (52) for allowing a user to selectively transmit to the jacks the raise signal and the lower signal.
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