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US 6,238,166 B1Granted
Utility trailers
OwnerDouglas Collierinventor
Life of this patent
Estimating the term…
Abstract
A utility trailer having a bed mounted on an axle which is supported by at least two wheels and adapted to be towed by a vehicle over a surface, the trailer having a bed which is capable of being selectively dumped to expel the contents thereof, wherein an anchor is disposed on chains and selectively deployable to position the chains relative to the wheels such that when the anchor is deployed, the wheels of the trailer engage the chains to halt movement of the trailer and cause rotation of the trailers bed about its axis.
Claims19
A utility trailer of a type which is transportable over a surface such as the earth, comprising, in combination:
- a frame;
- at least one axle, said frame being mounted on each said at least one axle for limited rotation thereabout;
- a pair of wheels, said wheels being rotatably attached to and supporting said at least one axle;
- a bed, said bed being secured to said frame to define a load carrying assembly, said assembly being mounted on and being rotatable relative to each said at least one axle;
- an anchor connected to said frame, said anchor being deployable between a stowed position, and an anchor position wherein said anchor is disposed on the surface, said anchor being sized and shaped to permit said wheels to roll over it when said anchor is in said anchor position, at least one chain, each said at least one chain interconnecting said anchor and said frame, each said at least one chain being coplaner with one of said wheels, and so positioned relative to said wheel and of a length sufficient to allow said at least one chain to be engaged by said coplaner wheel after said anchor is deployed to said anchor position and said coplaner wheel first rolls over said anchor, and then said coplaner wheel engages said coplaner chain to inhibit further movement of said wheel when said trailer is moved backwardly over said anchor;
- and a fulcrum, said fulcrum being connected to said load carrying assembly, and being urged into engagement with the surface when each said coplaner wheel is moved against said at least one chain, such that further movement of said trailer results in the bed being tilted about said fulcrum to dump the contents of said bed.
3 more elements
A utility trailer of a type which is transportable over a surface such as the earth, comprising, in combination:
- a frame;
- at least one axle, said frame being mounted on each said at least one axle for limited rotation thereabout;
- a pair of wheels, said wheels being rotatably attached to and supporting each said at least one axle;
- a bed, said bed being secured to said frame to define a load carrying assembly, said load carrying assembly being mounted on and being rotatable relative to each said at least one axle;
- a tongue assembly for attachment to a tow vehicle, said tongue assembly having a free end, said free end having a hitch mechanism thereon, and said hitch being attached to said load carrying assembly such that said load carrying assembly is rotatable relative thereto;
- an anchor connected to said frame, said anchor being deployable between a stowed position wherein the anchor is positioned beneath said load carrying assembly, and an anchor position wherein said anchor is disposed on the surface, said anchor being sized and shaped to permit said wheels to roll over it when said anchor is in said anchor position, at least one chain, each said at least one chain interconnecting said anchor and said frame, each said at least one chain being coplaner with one of said wheels, and so positioned relative to said coplaner wheel and of a length sufficient to allow said at least one chain to be engaged by said coplaner wheel after said anchor is deployed to said anchor position and said coplaner wheel first rolls over said anchor and engages said coplaner chain to inhibit further movement of said wheel when said trailer is moved backwardly over said anchor;
- a fulcrum, said fulcrum being connected to said load carrying assembly, and being urged into engagement with the surface when each said coplaner wheel is moved against said each chain, such that further movement of said trailer results in the bed being tilted about said fulcrum to dump the contents of said bed.
4 more elements
Dependencies are inferred from the claim text.