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US 6,082,561 AGranted
Portable jib crane for panel trucks
AssigneeLawrence G. Bembas
InventorLawrence Bembas
Life of this patent
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Abstract
Disclosed is a novel jib crane for panel trucks, or vans wherein the crane pivots along a common axis between opposing fixed bearing mounts. In practice, one attaches a lifting apparatus ratus to a trolley of the jib. A payload is hoisted off the floor of the vehicle, and after pulling the locking pin, the jib/mast is manually rotated until the payload is clear of the vehicle. The payload is then lowered to the ground.
Claims8
An apparatus for use within an enclosed cargo area of a motor vehicle, the apparatus comprising:
- a vertically extending mast supporting a horizontally extending jib, the jib comprising a unitary beam supporting a channel which extends to the distal end of the beam along underside of thereof, the channel comprising an upper wall, opposing side walls, and an undersurface having a central opening extending a long the length of the channel, the channel defined by upward extending terminations having upper surfaces;
- opposing upper and lower bearing and race assemblies attached to the jib for rotational movement of the mast and the jib, including upper and lower mounting means for mounting the bearing and race assemblies within the motor vehicle;
- a trolley member traversable in the channel, the trolley member comprising a plate, a plurality of rollers which ride along the upper surfaces of the channel terminations, and roller axles which extend through the plate and which are supported by bearings;
- means for hoisting a load supported by the trolley member;
- and
- means for fixing the rotational position of the of the mast and the jib.
3 more elements
Dependencies are inferred from the claim text.