VEHICLE RESTRAINTS WITH A BARRIER HAVING ROTATIONAL AND TRANSLATIONAL MOTION
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United States of America Patent
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Issued Date -
Aug 29, 2019
app pub date -
Feb 27, 2018
filing date -
Feb 27, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
Example vehicle restraints with a barrier having rotational and translational motion are described. An example vehicle restraint includes a carriage frame movable vertically relative to the dock. A drive shaft is supported by the carriage frame. A drive unit is to rotate the drive shaft about a shaft axis and relative to the carriage frame. A hub is connected to rotate with the drive shaft about the shaft axis, the hub having an outer diameter surface that is radially off center relative to the shaft axis. A barrier defines a bore that encircles the outer diameter surface of the hub. The barrier is movable selectively to an extended position and a retracted position. The barrier being connected to move selectively to the extended position and the retracted position in response to relative rotation between the outer diameter surface of the hub and the bore of the barrier.
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