Retractable bicycle training wheels

Claim 1

Auxiliary bicycle wheels comprising means for mounting a single bracket on each side of the rear axle of said bicycle with a selective verticle height adjustment, said bracket on each side comprising an aperture fitting over the ends of said axle, stabilizing means comprising a plate shaped to fit around at least some bicycle frame members, means for supporting an auxiliary wheel on each of said brackets, said brackets including means for pivotally moving said auxiliary wheels around an axis in a plane normal to the said rear axle, said auxiliary wheels moving between either a raised or lowered position, latch means for latching said wheels in either of said positions, said single bracket comprising a pair of L-shaped members, inverted with respect to each other, a first arm of one L-shaped member on one bracket being hinged inside the angle of the other L-shaped member, the other arm of said one L-shaped member having an auxiliary wheel attached thereto, a first arm on the other L-shaped member being attached to said rear axle, a second arm on the other L-shaped bracket member fitting under and supporting said other arm of said one L-shaped member when said auxiliary wheel is in said lowered position, said latch means comprising at least one first member on said first arm of said one L-shaped member and mating members on said first and second arms of said other L-shaped member, whereby the first member engages said mating members at the extremities of motion provided by said hinge, and spring bias means for holding said engagement between the mated latched members.