Patent ID: 6485034
Filing Date: 2002-11-26
Classification: A63C

Abstract:
A roller assembly of an in-line roller skate, said rollers assembly comprising:a roller frame; a plurality of rollers fastened pivotally with said roller frame such that said rollers are arranged linearly, and that said rollers glide in the same plane; a boot frame fastened pivotally with said roller frame on at least one fulcrum such that a front end or a rear end of said boot frame turns on said fulcrum; only a single braking mechanism having two inclined surfaces intersecting at an angle fixed directly on said boot frame such that said braking mechanism corresponds in location to two rollers of said plurality of rollers, the two rollers being located below the rear end of said boot frame behind said fulcrum, said braking mechanism being separated from said two rollers by a distance when said boot frame is located at a first position, wherein each of said two surfaces are located between the two rollers and each simultaneously engage one of the two rollers when said boot frame is located at a second position to stop revolution of said two rollers; and a biasing mechanism mounted between said roller frame and said boot frame for providing said boot frame with a biasing force to keep said boot frame at said first position at the time when said boot frame is not exerted on by an external force whereby said boot frame is forced to locate at said second position at the time when one end of said boot frame is exerted on by an external force opposite in direction to and greater than said biasing force; wherein said boot frame is fastened pivotally with said roller frame by a movable fulcrum, and a fixed fulcrum corresponding in location to the heel of a boot mounted on said boot frame, said fixed fulcrum being separated from said movable fulcrum by a distance; and wherein said rear end of said boot frame turns on said fixed fulcrum toward a first direction, thereby resulting in said front end of said boot frame to turn on said movable fulcrum toward a second direction opposite to said first direction; wherein said roller frame is formed of two side plates arranged side by side at an interval such that said two side plates are parallel to each other; wherein said rollers are fastened pivotally with said roller frame in such a manner that said rollers are fastened between said two side plates; wherein said boot frame is formed of two side plates, a front bracing plate, and a rear bracing plate, said two side plates being held together by said front bracing plate and said rear bracing plate such that said two side plates are parallel to each other and are separated from each other by a distance greater than said interval between said two side plates of said roller frame whereby said boot frame is fitted over said roller frame such that said front bracing plate of said boot frame is fastened with the toe portion of a boot, and that said rear bracing plate of said boot frame is fastened with the heel portion of the boot; and wherein said side plates of said roller frame and said boot frame are pivotally fastened at a rear end thereof by a first pivot serving as said fixed fulcrum.