| 摘要 |
A variable-attitude system applicable to trainer wheels (3) for children' s bicycles and mini-motorcycles is disclosed, consisting of a metal arm (1), carried by the bicycle or mini- motorcycle frame, by a second metal arm (4) and by a hinge joint (5), characterised in that elastic means (8) are provided, housed around the joint (5) which, through the two arms thereof, imparts a pressure which may be modulated on the second arm (4) which supports the trainer wheel (3) apt to adhere to the sliding plane. |
