초록 ▼

A dolly for lifting one end of a vehicle and for towing the vehicle includes a pair of identical tandem wheel assemblies interconnected by a pair of spaced parallel steel tubes. At least one of the wheel assemblies includes a hydraulic piston which, in spreading one pair of arms on crank members cou

A dolly for lifting one end of a vehicle and for towing the vehicle includes a pair of identical tandem wheel assemblies interconnected by a pair of spaced parallel steel tubes. At least one of the wheel assemblies includes a hydraulic piston which, in spreading one pair of arms on crank members coupled to the wheel assemblies, forces together the second pair of arms. The ends of the spaced parallel steel tubes are coupled into sockets on the ends of the second pair of arms so that their forcing together operates to lift a vehicle whose tires are resting across the steel tubes. The invention includes means for locking the tubes in their raised position and further includes vehicle wheel locking plates that are actuated by the lifting process.

대표청구항 ▼

A lifting dolly for vehicle towing, said dolly comprising: a pair of spaced parallel members, each member in said pair being positionable on the ground and adjacent the periphery of tires on a vehicle axle; a pair of substantially identical dolly wheel assemblies, at least one of said assemblies inc

A lifting dolly for vehicle towing, said dolly comprising: a pair of spaced parallel members, each member in said pair being positionable on the ground and adjacent the periphery of tires on a vehicle axle; a pair of substantially identical dolly wheel assemblies, at least one of said assemblies including: a substantially horizontal base member positioned perpendicular to the longitudinal axes of said parallel members; a crank member located at each end of said base member and having an upper extending arm joined to a downward depending arm; pivoting means connecting each end of said base member with said crank member at a point near the joining of said arms, said pivoting means enabling said crank member to rotate about an axis parallel with the longitudinal axes of said spaced parallel members, said pivoting means also being an axle for a dolly wheel; socket means attached to the end of each of said downward depending arms for receiving an end of one of said pair of spaced parallel members; and linearly extendible means coupled between the ends of the upper extending arms of said crank members, the extension of said extendible means causing the depending arms of said crank members to pivot inward and to raise said pair of spaced parallel members.