Abstract: Apparatus and method for simultaneously applying braking forces to two spaced apart rotating in-line roller skate wheel assemblies.

Abstract: A skate body comprises a first body portion and a second body portion that are releasably secured together. A brake device includes a brake seat mounted to one of the first and second body portions and a brake block. The brake seat includes a resilient hook member and a rib formed on an inner wall thereof. The brake block includes an engaging groove releasably engaged with the rib of the brake seat and a retaining piece releasably engaged with the resilient hook member of the brake seat.

Abstract: A two-purpose roller skate, includes a shoe body (1) and a pair of wheel assemblies (2,2′), each of the wheel assemblies includes a base (21), the base (21) having an installation plate (211) and two parallel side walls (212,212′) extending downwards from the installation plate (211), a swing arm (22) being mounted in a hinging way on a pivot (23), and on at least one side of the said swing arm (22) there are formed the first protruding shoulders (222,222′) and the second protruding shoulders (223,223′) which can be engaged with the lower end face (214) and the back end face (215) of the base (21) respectively. A stopping mechanism locks said swing arm (22) on the first position and the second position being at an angle &agr; to each other. The swing arm can provide a firm support for the lower end face of the base to improve the overall rigidity of the wheel assembly.

Abstract: Roller skate structure including a locating seat assembly composed of a locating seat, two nuts, a linking plate, a stop body, a compression spring, a torque spring, a pivot shaft and a C-shaped retainer ring. Two pivot plates downward extend from the locating seat. A lateral end of each pivot plate is formed with a stop through hole. A middle portion of each pivot plate is formed with a pivot hole. One side of one pivot plate is provided with a projecting post having a slide through hole. Two ends of the linking plate are respectively formed with a driving hole and a driven hole. The stop body includes a stop head and a small diameter driven post extending from the end face of the stop head. The pivot shaft is a two-step cylindrical member. The circumference of the large diameter section of the pivot shaft is formed with a spring hooking hole. The circumference of the small diameter section thereof is cut with a plane linking face. An inner end of the pivot shaft being formed with an annular retainer groove.

Abstract: A skate with in-line wheels, including a first front body, for supporting and locking the front part of the foot, and a second rear body, for supporting and locking at least the heel, the bodies having a first frame and a second frame for supporting a plurality of wheels. The first and second bodies and the first and second supporting frames are rotatably associated to each other to allow better transmission of lateral forces during sports practice.

Abstract: A wheeled skate device has a pair of large primary wheels coupled to opposite lateral sides of a platform. The primary wheels rotate about primary axes of rotation in both forward and rearward direction. The skate device may have a secondary wheel coupled to one end of the platform which rotates about a secondary axis of rotation. The secondary wheel also pivots about a vertical pivot axis through at least 180 degrees such that the secondary wheel turns with the platform without sliding on the support surface. The wheels cooperatively operate in a travel mode and spinning mode. In the travel mode, all the wheels rotate in the same direction to horizontally displace the platform. In the spinning mode, the primary wheels rotate opposite directions to one another, and the secondary axis of rotation is traverse to the primary axes of rotation. The platform also may pivot about the primary axes of rotation between a horizontal orientation and an inclined orientation.

Abstract: A scooter rear wheel brake comprises a first wheel cover and a second wheel cover. The first wheel cover is mounted on the support frame of the scooter and is located over a predetermined position of the wheel rim. The first wheel cover is provided with a connection portion. The second wheel cover is movably connected with the connection portion of the first wheel cover such that the second wheel cover is located over another predetermined position of the wheel. The first wheel cover can be freely disposed at the position of the second wheel cover. The second wheel cover can be pressed against the wheel rim to bring about the braking effect.

Abstract: A roller wheel slider includes a mounting plate with clamps on opposite sides for clamping to a shoe. The mounting plate includes a front roller wheel support plate connected to a rear roller wheel support plate by a connecting member. A plurality of axles are mounted transversely under each roller wheel support plate, and a plurality of roller wheels are mounted to each axle. A hard plate on the front end of the mounting plate allows the user to slide when the rear of the shoe is lifted. A resilient friction pad on the rear end of the mounting plate allows the user to brake when the front of the shoe is lifted. The roller wheels are preferably only about 0.5 inch (1.2 cm) in diameter, so that they raise the user by an almost imperceptible amount from the ground to provide a sense of safety, and a sense of sliding along the ground. The large number of roller wheels are distributed across a wide area under the shoe to share the load for durability.