Abstract: A roller skate includes a skate body, a bracket and an auxiliary roller. The skate body has front and rear ends and a bottom side with a plurality of main rollers mounted rotatably thereon along a longitudinal axis which extends between the front and rear ends. The bracket is connected to the bottom side of the skate body at one of the front and rear ends, and has a spaced pair of parallel side plate portions which form an angle with the longitudinal axis of the skate body. The auxiliary roller is disposed between the side plate portions of the bracket and is mounted rotatably thereon.

Abstract: A roller skate having rollers aligned along a longitudinal axis thereof is equipped with a device which includes a mounting seat attached to the skate body adjacent to the front or rear end thereof. A pair of mounting shafts are mounted on the mounting seat and extend in such a manner that they form an angle therebetween and that they are symmetric with respect to the longitudinal axis. A pair of auxiliary rollers are mounted respectively to the mounting shafts so that they lie in two imaginary planes which are perpendicular to the mounting shafts, respectively, and which form a V-shape symmetric with respect to the longitudinal axis. The device assists the turning and braking action of the roller skate.

Abstract: A skate shoe has a sole plate and a skating unit which is detachably attached to the sole plate. The sole plate includes a front section, a rear section spaced from the front section and a connecting member adjustably interconnecting the front and rear sections. The front section has a toe cup provided on an upper side of the front section. The rear section has a heel cup provided on an upper side of the rear section. A fixing device provided between the heel cup and the toe cup, holds a foot inserted between them in a firm position.

Abstract: A roller skate includes at least one front roller, a middle roller longitudinally aligned with the front roller, and a pair of rear rollers. The lowest point of the front roller is substantially higher than the middle roller and the pair of rear rollers to that a skater can skate only with the front roller and the middle roller. Alternatively, a hinge member connects pivotally the front portion and the middle portion of the roller skate so that the pair of rear rollers can be lifted up, thereby, allowing the skater to skate only with the front roller and the middle roller. In this way, the skater can gyrate smoothly at a radius smaller than that of a conventional roller skate.