Patent ID: 8388017

Claim:
A foldable trailer, comprising: a substantially horizontal, substantially planar center section joined to at least one main axle and wheels assembly; a substantially planar rear section attached to the center section by a first hinged interface, such that the rear section may be folded from a substantially horizontal position, coplanar with the center section, to a substantially vertical position relative to the horizontal center section; a substantially planar forward section attached to the center section by a second hinged interface, such that the forward section may be folded from a substantially horizontal position, coplanar with the center section, to a substantially vertical position relative to the horizontal center section; a tongue section attached to the substantially planar forward section by a third hinged interface on an edge of the substantially planar forward section opposite the second hinged interface, such that the tongue section is enabled to fold downward around the third hinged interface, as the forward section is folded upward, resulting in both the tongue section and the forward section being oriented to a substantially vertical position relative to the center section; a forward set of trolley legs hinged at one end to a frame member of the substantially planar forward section, having trolley wheels at an end opposite the hinged end, the forward set of trolley wheels constrained by mechanical mechanism to rotate downward as the substantially planar forward section is folded upward, causing the trolley wheels to contact ground surface as the substantially planar forward section approaches vertical; a rear set of trolley legs having trolley wheels on one end and constrained to translate in a direction parallel to the plane of the substantially planar rear section such that the trolley wheels of the rear set of trolley legs contacts ground surface as the substantially planar rear section approaches vertical; a first powered linkage adapted to fold the substantially planar forward section upward around the second hinged interface and a second powered linkage adapted to fold the substantially planar rear section around the first hinged interface; and an electrically-operated control interface adapted to operate the first and second powered linkages to fold the substantially planar rear and forward sections upward relative to the substantially planar center section, the control interface comprising one or more switch inputs to initiate power to the first and second powered linkages to cause the trailer to fold; wherein, as the substantially planar forward and rear sections are folded upward, the sets of trolley legs are deployed downward, lifting the folded trailer on the trolley wheels with the main axle and wheels assembly off ground level, such that the folded trailer may be moved about on the trolley wheels without interference from the main axle and wheels assembly.