초록 ▼

A hand truck or trolley comprises a frame having an upper side and an underside, a rear axle connected to the frame proximately to a rear edge thereof, a pair of rear wheels attached to the rear axle for rotation about an axis defined by the axle, and a handle pivotably coupled to the axle and thus

A hand truck or trolley comprises a frame having an upper side and an underside, a rear axle connected to the frame proximately to a rear edge thereof, a pair of rear wheels attached to the rear axle for rotation about an axis defined by the axle, and a handle pivotably coupled to the axle and thus to the frame for rotation about the axis. A cross-brace is pivotably connected to the handle for rotation about an axis spaced from the axle, while coupling elements are provided on the cross-brace and the frame for releasably connecting the cross-brace to the frame at a point spaced from the axle and from the coupling between the handle and the cross-brace. The cross-brace establishes a triangulated truss connecting the handle to the frame in a use position of the handle.

대표청구항 ▼

A hand truck comprising: a frame having an upper side defining a substantially planar load-bearing support surface, said frame also having an underside; a rear axle connected to said frame proximately to a rear edge thereof; a pair of rear wheels attached to said rear axle for rotation about a first

A hand truck comprising: a frame having an upper side defining a substantially planar load-bearing support surface, said frame also having an underside; a rear axle connected to said frame proximately to a rear edge thereof; a pair of rear wheels attached to said rear axle for rotation about a first axis defined thereby; a handle pivotably coupled at a lower end to said frame for rotation about a second axis relative to said frame; a cross-brace pivotably connected to said handle for rotation about a third axis spaced from said second axis; and coupling means on said cross-brace and said frame for releasably connecting said cross-brace to said frame at a point spaced from said second axis and said third axis so that said cross-brace extends substantially parallel to said support surface in a use position of said handle, thereby establishing a triangulated truss connecting said handle to said frame in said use position of said handle.