| 摘要 |
The electric floor jack device provides the advantages of a typical floor jack, and more still. The device includes a frame with wheels and casters, like a typical floor jack and also lift arms and lift lever, with pivot, also like a typical floor jack, including lift block and lift pad. The handle offers an advantage not enjoyed by floor jacks known. Further advantages provided by the device include screw shaft lift of the lift arms. The screw shaft lift of the lift arms enables the use of the electric motor. Further, as opposed to the pumped vertical lift, and difficult-to-control lowering typical of most floor jacks, the screw lift provides smooth, predictable operation, whether up or down. Further, the existing removable battery pack is like many used with other currently marketed tools, and provides recharging and interchangeability advantages enjoyed by many other tools.
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