| 摘要 |
An electrical lift for use with a fifth trailer a housing being supported to the trailer and having a vertically and telescopically downwardly extending support post, a horizontal shaft extending from the housing and connected by gear means within the housing so that the rotation of the horizontal shaft retracts or extends the support post, a gear on the horizontal shaft externally of the housing, a gear motor having a shaft extending from it with a gear and including a chain drive connecting the two gears together so that the gear motor rotates the horizontal shaft, a battery, and a reversible switch means connecting the battery to the gear motor so that the vertical support may be extended to raise the trailer forward portion or withdrawn to lower the trailer, thereby facilitating the coupling of the trailer fifth wheel portion to a towing vehicle.
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