Patent ID: 6113112
Filing Date: 2000-09-05
Classification: A63C

Abstract:
An in-line roller skate assembly comprising: a frame connected to a shoe and at least three running rollers which are substantially equal in diameter and are disposed one behind the other in a running direction of the skate, the running rollers being rotatably mounted on said frame and including a front roller, a rear roller, and at least one intermediate roller between said front and rear rollers, said front roller having a convex shaped rolling surface with a pair of laterally spaced curved shoulder portions having a common radius of curvature as defined in a plane intersecting a rotational axis of said front roller, said rear roller having a rolling surface with a pair of laterally spaced curved shoulder portions as defined in a plane intersecting a rotational axis of said rear roller, and said at least one intermediate roller having a rolling surface and the at least one intermediate roller having a cylindrically shaped central portion and a pair of laterally spaced curved shoulder portions as defined in a plane intersecting a rotational axis of said at least one intermediate roller, the radius of curvature of said front roller being greater than a radius of curvature of each curved shoulder portion of said intermediate roller but less than a radius of curvature of each curved shoulder portion of said rear roller.