Stroller wheel assembly for bicycle trailer

Abstract

A stroller wheel assembly is mounted on a bicycle trailer tongue to permit operation as either a trailer or a separate three-wheel stroller. A clamping member, attached to the tongue of the trailer, includes a boss which extends transversely outward. A mating socket is provided on a pivot member, the pivot member being attached to a fork which rotationally supports a wheel. The preferred shape of the boss and mating socket is an equilateral triangle. The triangular socket of the pivot member engages the triangular boss of the clamping member in two positions, one with the wheel in the down position for stroller use and the other with the wheel in a rearward position for bicycle trailer use. Centrally fixed to and extending outwardly from the triangular boss is a threaded member which acts as an axis for rotation of the pivot member between the two positions. A spring encloses the threaded member between the boss and the socket, thus biasing the boss out of the socket to facilitate relocation of the pivot member. The threaded member is inserted through an aperture formed in the socket, and a threaded knob, upon tightening, pulls the boss into the socket, thereby locking the wheel into the desired position. An upwardly inclined plate, attached to the front portion of the pivot member, physically interferes with and deflects the hitch when the wheel is in the down, stroller position, thus preventing inadvertant use of the wheel in the down, stroller position while hitched to the bicycle.