Patent ID: 6561525
Filing Date: 2003-05-13
Classification: A63C

Abstract:
An in-line skating device of a roller skate, said device comprising:a base fastened to the sole of a boot of the roller skate; a wheel carrier fastened pivotally with said base; a plurality of wheels pivoted to said wheel carrier; wherein said wheel carrier comprises at least two pairs of carrying plates, with two carrying plates of each pair of said two pairs being connected with each other in a parallel manner, said wheels being pivoted respectively between two carrying plates, said carrying plates being arranged in sequence such that adjoining ends of said carrying plates are pivoted together at an axle of one of said wheels so as to enable said carrier to turn in relation to said base, said pairs of said carrying plates being able to displace in relation to each other, thereby leaving a predetermined number of said wheels to be in contact with the ground surface.