Abstract: An in-line roller skate of the type which includes a shell with a support for the wheels and a quarter which is slidingly associated with the shell. Struts for the selective axial movement of the quarter is associated with the shell of the skate.

Abstract: A frame for a skate has a base, on which a shoe can be associated, and two wings for supporting two or more pivots for the wheels. A protective plate is slidingly and selectively associated with the two wings of the frame and can be interposed between two adjacent wheels. It is thus possible to provide optimum protection of the frame against impacts during sports practice.

Abstract: An in-line roller skate with adjustable wheels includes a U-shaped frame (2) having first wings (3a, 3b) supporting two first wheels (5a, 5b) there between. On the first wings, between the two first wheels, there is a pair of first longitudinal seats for selectively coupling two complementarily shaped supports (13a, 13b). Second seats for two second wheels (18a, 18b) are formed on the supports, eccentrically with respect to the longitudinal median axis of the skate. The particular coupling of the two supports to the two first longitudinal seats allows to pivot the second wheels along either the same plane of the first wheels, or a different one.

Abstract: Sports shoe with improved safety, including closure levers (13), arranged centrally with respect to either one of the upper metatarsal region (7) and the foot instep region (8) and the front tibial region. The levers are arranged transversely and centrally and any portion protruding from the gear is arranged only at the central region of the shoe.

Abstract: A device for varying the vertical alignment of wheels, for in-line skates includes a U-shaped frame having wings provided with at least two mutually aligned wheels. The device is constituted by a support having two second wheels. The support is selectively associable with the frame at individually different heights.

Abstract: A braking device, particularly for skates having a frame to which a plurality of mutually aligned wheels is pivoted. The device is constituted by an element which is pivoted to the frame in contrast with a spring and interacts with the ground at a first end upon a backward rotation of the skate. The device comprises a second end which interacts with the lateral surfaces of one of the wheels, allowing to preserve them from wear.

Abstract: A braking device for in-line skates is constituted by a body (7) with which one of the wheels (6) is rotatably associated. The body is pivoted to the frame (2), so that it can oscillate in contrast with adjustable springs (18a, 18b) and is interposed between two mutually contiguous wheels and interacts, together with the frame, with the two wheels when the skate is rotated forwards or backwards.

Abstract: A safety screw for skates, including a male part, provided with a first head and with a first internally threaded stem, and a female part, provided with a second head and with a second stem that has a complementarily threaded first seat for the first stem. In this screw, the male part has an axial external reeding which is adjacent to the first head and has a slightly larger diameter than the first stem. The reeding interacts with a second seat that has a slightly smaller diameter. The second seat is formed at the free end of the female part, and is contiguous to the first seat.

Abstract: A supporting frame, particularly for aligned wheels of skates, which is shaped like a "U" on the wings of which there is a plurality of first and second holes having the same axis. These holes constitute seats for removable pivots for the wheels and are respectively partially closed and temporarily closeable at their opposite ends. A sliding bar, slideable in a groove, is used for blocking, at least temporarily, the pivots. The wheels are associable with the supporting frame without requiring screws and thus containing the assembly and general costs of the skate.