Vehicular low profile self propelled aerial work platform
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 19, 1988
Grant Date -
N/A
app pub date -
Sep 25, 1987
filing date -
Sep 25, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vehicular low profile self propelled aerial work platform assembly having a turntable positioned in a horizontal plane in close proximity to the axles of the vehicle. A parallelogram linkage is provided between a superstructure support frame carried by the turntable and a riser frame assembly to which one end of a telescopic boom assembly is pivotally connected, the aerial work platform being mounted on the outermost end of the telescopic boom assembly. A counterweight is detachably connected to the support frame and is formed with a trough aligned with a similar trough provided in the support frame, the parallelogram linkage includes a pair of tubular arms which extend through the troughs when the work platform is in the lowermost position. When in the lowermost position, the height of the pivotal connection of the telescopic boom assembly to the riser frame assembly is approximately eight feet allowing the assembly to be employed in warehouses and manufacturing plants having low and narrow doorways and aisles. The support frame and parallelogram linkage are symmetrical with respect to the centerline of the machine to thereby distribute stresses equally through the machine. When in the elevated position, the superstructure support frame, parallelogram linkage, and counterweight are positioned within the wheelbase of the vehicle to thereby provide a zero tailswing.
First Claim
Other Claims data not available