| 摘要 |
<p>The wheelchair is provided with motorized rear wheels (A) and with swivelling or steering front wheels (B), and comprises: Telescopic legs (202) located in the rear part of the wheelchair and provided at their lower ends with ground bearing means (C), these bearing means being positioned at a centre-to-centre distance (IA) from the rear wheels (A) of the wheelchair which is suitably greater than the radius of these wheels (A); Telescopic legs (5) located suitably with respect to the front wheels (B) of the wheelchair and provided at their lower ends with ground bearing means (D); Telescopic legs (3) which support the front wheels (B) of the wheelchair; Safety means and control means for ensuring that, during travel along the stairs, the bearing means of the said rear and intermediate legs (202, 5) are all extended and bear on the ground, together with the front and rear wheels of the wheelchair.</p> |
