Lightweight trailer
OwnerJoseph William Taylorinventor
Life of this patent
Estimating the term…
Abstract
A trailer includes a trailer frame using suspension cables supported from vertically extending towers on opposite sides of the trailer frame and connected to distal ends of the trailer frame for supporting distal portions of the trailer frame. The trailer bed frame comprises a plurality of folding frame sections which can be unfolded into planar alignment to form the trailer frame and folded into an overlapping or stacked alignment for storage. Left and right wheels are rotatably mounted on left and right suspensions which are removably securable to left and right sides of the trailer frame. The suspensions comprise quarter elliptical leaf spring suspensions formed from curved upper and lower leaf springs spaced apart by inner and outer spacers.
Claims18
A suspension for a vehicle comprising:
- an upper leaf spring having an inner end and an outer end;
- a lower leaf spring having an inner end and an outer end;
- an inner spacer joining the upper and lower leaf springs to form an inner spring unit end;
- an outer spacer joining the upper and lower leaf springs to form an outer spring unit end wherein the inner spacer is spaced apart from the outer spacer and the upper and lower leaf springs are secured in spaced apart relation;
- and
- connecting means for connecting the inner spring unit end to a frame of the vehicle such that the outer spring unit end extends in spaced relation below the frame of the vehicle.
A suspension system for a trailer including a trailer frame and trailer wheels and comprising:
- a pair of cantilever spring units, each cantilever spring unit including:
- an upper leaf spring having an inner end and an outer end;
- a lower leaf spring having an inner end and an outer end;
- an inner spacer joining the inner ends of the upper and lower leaf springs to form an inner spring unit end;
- and
- an outer spacer joining the outer ends of the upper and lower leaf springs to form an outer spring unit end whereby the upper and lower leaf springs are secured in spaced apart relation;
- the spring units being secured by their respective inner ends to opposite sides of the trailer frame in trailing, laterally spaced relation;
- and
- each of the cantilever spring units having a respective ground engaging wheel rotationally supported thereon proximate the outer spring unit end.
A suspension for a vehicle comprising a cantilever spring unit including:
- an upper leaf spring having an inner end and an outer end;
- a lower leaf spring having an inner end and an outer end;
- an inner spacer joining the upper and lower leaf springs proximate inner ends thereof to form an inner spring unit end;
- and
- an outer spacer joining the upper and lower leaf springs proximate outer ends thereof to form an outer spring unit end, wherein:
- the inner spacer is spaced apart from the outer spacer;
- the upper and lower leaf springs are secured in spaced apart relation;
- and
- the upper leaf spring and the lower leaf spring each curve in an upwardly oriented obtuse angle between the inner spacer and the outer spacer;
- and the suspension having:
- a ground engaging wheel rotatably secured to the outer spring unit end of the cantilever spring unit.
Dependencies are inferred from the claim text.