Vehicle lifting and towing attachment
OwnerMichael Krisainventor
Life of this patent
Estimating the term…
Abstract
A lifting and towing attachment for use on a trailer cab having a conventional fifth wheel coupler, the attachment readily converting the cab for use in lifting and towing a disabled vehicle, particularly large vehicles such as dump trucks, buses, or other trailer cabs.
Claims12
A lifting and towing attachment for use on a trailer cab having a horizontal frame with front and rear ends, the attachment comprising a boom assembly including a substantially horizontal beam portion, a generally vertical beam portion rigidly connected to said horizontal beam portion, and a tow bar assembly connected to a lower end of said vertical beam portion for engaging a disabled vehicle, substantially horizontal mounting plate means adapted to be readily mounted on the rear of said frame, a pair of spaced vertical guide posts fixed on said plate means, said boom assembly being mounted between said guide posts for vertical sliding movement, a front end of said horizontal beam portion adapted to be pivotally connected to the front of said frame, power lift means connected between said plate means and said boom assembly for moving said boom assembly up and down within said guide posts between raised and lowered positions, said horizontal plate means being crowned so as to be flattened when said lift means raises said boom assembly and a disabled vehicle engaged by said tow bar assembly, thereby causing said guide posts to squeeze against and laterally stabilize said boom assembly during transportation of the disabled vehicle, whereby said boom assembly, said plate means, said guide posts, and said lift means are readily attachable and detachable as a complete unit from said frame.
A lifting and towing attachment for use on a trailer cab having a horizontal frame, the attachment comprising a boom assembly including a substantially horizontal beam having front and rear ends, a vertical inclined beam having upper and lower ends and being rigidly connected to said horizontal beam at a location intermediate said upper and lower ends, and a tow bar assembly pivotally connected to said lower end of said vertical beam for movement between a raised storage position and lowered generally horizontal work position, said tow bar assembly including adjustable vehicle engaging means adapted to accommodate vehicles of different size and dimensions, and actuator means connected between said vertical beam and said tow bar assembly for moving said tow bar assembly;
- substantially horizontal mounting plate means adapted to be readily mounted on a rear of said frame;
- a pair of spaced vertical guide posts fixed on said plate means;
- said intermediate location of said vertical inclined beam being mounted between said guide posts for vertical sliding movement, the upper and lower ends of said vertical beam extending forwardly and rearwardly of said guide posts, the front end of said horizontal beam adapted to be pivotally connected to a front of said frame;
- power lift means connected between said plate means and said upper end of said vertical beam for moving said boom assembly up and down between raised and lowered positions;
- whereby said boom assembly, said plate means, said guide posts and said lift means are readily attached and removed as a complete unit from said frame.
Dependencies are inferred from the claim text.