Collapsible bicycle trailer

Abstract

A collapsible bicycle trailer includes a rigid chassis frame, hinged side rails, a side rail locking bar, a hinged tongue, and quick release wheels. The chassis frame has a generally rectangular-shaped outer frame member, and inner frame members spaced inwardly from and parallel to, the sides of the outer frame member, with wheels rotating between the outer and inner frame members. On each side of the chassis frame are positioned a pair of side rail hinge members to which are attached the lower ends of the side rails which rotate between an extended, vertical position and a folded horizontal position. The side rail hinge members also are designed to provide the connecting means between the outer and inner frame members. A side rail locking bar is pivotally attached to the top of one side rail and unfolds to securely connect to the top of the other side rail, forming a roll bar assembly. Extending forward from a front corner of the chassis frame is a tongue, having at its outer end a hitch for attaching the trailer to a bicycle. A pivot shaft is mounted between a side of the outer frame member and an inner frame member to pivotally support the inner end of the tongue, allowing the tongue to be folded 180-degrees to a position beneath and adjacent to the chassis frame. A U-shaped tongue clip, with securing pin penetrating its downwardly extending legs, is installed on the outer frame member to grasp and secure the trailer tongue in an open, extended position.