A ROLLER CONTRIVANCE INTENDED FOR AT LEAST ONE FOOT

摘要

A roller contrivance for use with at least one foot, such as a roller skate (1), skateboard, roller ski or the like, comprising a base frame (2) and at least one row of mutually sequential rollers (3) mounted on the base. At least one of these rollers (3) is journalled in a holder (6) which is pivotally mounted to the base (2). The holder is able to pivot about an axis which forms a right angle with the rotational axis of the roller (3) and is located at a given distance from a roller centre line (10) which passes through the roller journal point (8) and its point of contact (21) with the underlying surface.