Patent ID: 6705629
Filing Date: 2004-03-16
Classification: A61G

Abstract:
A wheel chair (1) comprising at least two rear wheels (2a, 2b), at least two front wheels (3a, 3b), a supporting frame (4), a seat assembly (5) and a backrest assembly (6), wherein the seat (5) can be moved from a passive sitting position to an active driving position, and vice versa, wherein the seat (5) is tilted relative to a pivoting point (9) located some distance under the seat (5) upon being adjusted, in such a manner that the center of gravity of a user's body is moved rearwardly in a direction toward the rear wheels (2a, 2b) upon adjustment to the driving position, and that the center of gravity of a user's body is moved forwardly in a direction away from the rear wheels (2a, 2b) upon adjustment to the sitting position, and wherein an angle &bgr; included between the seat (5) and the backrest (6) is made smaller upon adjustment to the driving position, and it is made larger upon adjustment to the sitting position, characterized in that the wheel chair (1) comprises a leg support (7), wherein an angle &ggr; included between the seat (5) and the leg support (7) is made smaller upon adjustment to the driving position and larger upon adjustment to the sitting position, and wherein the leg support (7) is moved upwards in a direction towards the rear wheels (2a, 2b) upon adjustment to the driving position, and downwards in a direction away from the rear wheels (2a, 2b) upon adjustment to the sitting position, said leg support (7) being positioned between the two front wheels (3a, 3b).