초록 ▼

A collapsible trailer includes a first platform and a second platform which is pivotably mounted to the first platform so that the second platform may move between an open and closed position. A support arm is mounted on the first platform and extends to contact the second platform at a position sub

A collapsible trailer includes a first platform and a second platform which is pivotably mounted to the first platform so that the second platform may move between an open and closed position. A support arm is mounted on the first platform and extends to contact the second platform at a position substantially away from the pivot axis of the second platform when in the open position. The support arms shares a load applied to the second platform between the first platform and the second platform.

대표청구항 ▼

A collapsible trailer comprising: a front platform; a rear platform connected to said front platform so that the platforms are pivotable between an open position wherein they extend horizontally in the same general plane, and a closed position wherein the platforms are in folded relation; a pair of

A collapsible trailer comprising: a front platform; a rear platform connected to said front platform so that the platforms are pivotable between an open position wherein they extend horizontally in the same general plane, and a closed position wherein the platforms are in folded relation; a pair of wheels mounted on and extending laterally from one of the platforms for supporting the trailer in its open position; and a pair of spaced casters mounted to said one platform, one or more casters mounted on the other one of said platforms, each caster being fixed with respect to the platform to which it is mounted, said casters being positioned so that when the platforms are in said open position, the casters mounted to the front platform extend rearwardly beneath the rear platform and the casters on the rear platform extend forwardly beneath the front platform, and the casters being spaced above the surface on which the wheels rest when supporting the trailer, said casters further being positioned so that when the platforms are in the closed position and then rotated about the wheels to a storage position, wherein the platforms extend generally vertically, the support of the trailer is shifted from the wheels to the casters to facilitate moving the trailer in said storage position.