A supporting frame for a vehicle seat.

摘要

A supporting frame for a wheelchair seat includes an axle tube (20) mounting rear wheels, tubular side members (21) pivotally mounted on the axle tube (20) and carrying front castor wheels, a front transverse tube (22) of rectangular cross-section connected to the side members (21) by pin connections (23) allowing limited vertical movement of the side members (21) relative to each other, and a T-shaped member (25), the lower end of the upright limb (27) thereof being connected to the middle of the front tube (22) to allow turning of the T-shaped member (25) about a middle longitudinal axis, and the horizontal limb (26) thereof bearing the front of the wheelchair seat.