摘要 |
The device has an elongated foot support (5) with a vertical axis (Z-Z) maintaining a wheel raised from a floor and comprising a lower portion (5A) and an upper portion (5B). The lower portion and the upper portion are connected to each other by a rotary connection (7) allowing the free rotation around the axis of the elongated foot support. The upper portion is applied on a lower end of a barrel, where an axle is orthogonally placed with respect to the barrel. The wheel is freely raised in rotation around the axle. |