Abstract: A child's roller skate; a frame therefor; a method of combining a frame and shoe in a skate: a frame upper portion attachable to a shoe bottom by a bolt and a nut. Means in the frame for accepting, retaining and rotationally stabilizing the inserted nut so that the bolt may be screwed into the nut by pressing it into the nut and turning it relative to the frame, no separate tool being needed to stabilize the nut. A bolt inserted vertically through bore; a nut inserted laterally into a guide. A frame including front and rear support receptacles for rotatably housing front and rear axles, preferably via bearings, one per axle. One support receptacle, preferably both, are formed integrally with the frame. The frame preferably is formed of plastic. A frame lower portion, preferably formed integrally with the frame extends beneath the frame upper portion between the front support and rear receptacles. Brake blocks attachable to frame in same manner as shoe. Reduced weight, height, material, and assembly steps.

Abstract: A roller skate: a shoe forming a sole; a rail placed against the sole; first and second wheel truck adapters (“adapters”) each fastened to the sole by a bolt passing through the rail; wheel trucks attachable to the adapters. The bottom surface of the rail is profiled. The top surface of each adapter is profiled to engage the bottom surface of the rail. The adapters when pressed against the rail are rotationally and laterally stabilized but may slide lengthwise along the rail. One fastener secures each adapter to the sole. The relative locations and separations of the fasteners, and the points at which the fasteners penetrate the rail, are determined primarily with reference to the structure of the sole. Adapters are stabilized in angle relative to one another substantially without reference to the distance between them. Adapters may be spaced apart any distance within a range accommodated by a single rail.