Pop-up dolly for a towing system
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United States of America Patent
Stats
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Jul 11, 1989
Grant Date -
N/A
app pub date -
Mar 23, 1988
filing date -
Mar 23, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wheel cradling assembly includes a self-locking and self-unlocking actuator assembly associated with each of four dolly wheels, each actuator assembly having a roll-over pivot gear for moving an associated dolly wheel spindle between released and actuated positions. A gear lock either allows or prohibits rotational motion of the roll-over pivot gear in accordance with the pivotable position of the gear lock, and a spindle retainer automatically engages and releasably locks the dolly wheel spindle whenever the spindle is moved to the actuated position by the gear. The dolly assembly also includes a pair of cross arm assemblies extending transversely between a pair of dolly wheel carrying base assemblies for surrounding a pair of coaxial wheels of a towed vehicle.
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