Single-track roller skate shoe with chassis and bearing brackets - has three rollers in two groups positioned at heel, and ball of foot, with rotary axles

摘要

The single-track roller skate (1) shoe (2) has a chassis (4,7) with bearing brackets (10) for mounting at least three rollers (5,6,8) one behind the other in two groups. The back group is positioned near the heel and has at least one roller (8). The front group is positioned near the ball of the foot and has at least two rollers (5,6). The front (5) and next (6) roller of the front group are positioned so that one side of the rollers facing the shoe and parallel to the rollers rotary axles (12) touch no other roller (8). The front roller of the front group has a free wheel unit. USE/ADVANTAGE - The roller skate shoe can be easily pushed in a forward direction and can travel backwards.