| 摘要 |
The wheelchair consists of a chassis (2) and an articulated height adjustment structure (12) with a seat, foot rest and back. crosspiece to form a single adjustable assembly. The wheelchair consists of a chassis (2) and an articulated structure (12) with a seat, foot rest and back. The articulated structure is made up of two symmetrical and lateral articulated systems, each having a first folding quadrilateral (17) with upper and lower bars (18, 19), pivoted at the front to the chassis and at the back by a spacer (20), and a second folding quadrilateral which helps to support the foot rest and connects the chassis at the front to the first quadrilateral. Each spacer is in the form of a triangular plate connected to the upper and lower bars (18, 19) by fixing nuts which can be set in adjustable positions on the bars. The spacers on opposite sides of the wheelchair are connected by a crosspiece. |
