Lifting apparatus for use in a truck bed
OwnerHelmut GROLLITSCHinventor
Life of this patent
Estimating the term…
Abstract
A lifting apparatus has a support structure, a frame pivotally connected to the support structure, an actuating means connected to the frame so as to move the frame between a retracted position and an extended position, a lifting bar pivotally connected to the frame, and a linkage having one end pivotally connected to the support structure and an opposite end connected to the lifting bar. The lifting bar has a first strut with one end pivotally to the frame, a second strut with the one end pivotally affixed to the frame, and a cross member affixed adjacent to opposite ends of the first and second struts and extending thereacross. The linkage includes a first link and a second link each having fixed lengths.
Claims20
A lifting apparatus comprising:
- a support structure;
- a frame pivotally connected to said support structure;
- an actuating means connected to said frame so as to move said frame between a retracted position and an extended position;
- a lifting bar pivotally connected to said frame;
- and
- a linkage having one end pivotally connected to said support structure and an opposite end connected to said lifting bar.
A lifting apparatus comprising:
- a vehicle having a bed;
- a support structure positioned on said bed of said vehicle;
- a frame pivotally connected to said support structure;
- an actuating means connected to said frame so as to move said frame between a retracted position and an extended position;
- a lifting bar pivotally connected to said frame;
- and
- a linkage having one end pivotally connected to said support structure and an opposite end connected to said lifting bar.
Dependencies are inferred from the claim text.