| 摘要 |
The object of the invention is the lift used primary in wheelchairs for adjusting the positioning of the seat, and simultaneously for changing the positioning of the person sitting in the wheelchair. According to the invention, the upper frame (1) consists of a horizontal stable part (2) and tilt plate (3). The tilt plate (3) is rotationally and slidably deposited with bolts (8) in the guides (4) of the stable part (2). The second support of the tilt plate (3) is the tilt arms (5) which are connected with the tilt plate (3) rotationally with the use of the bolts (6). The tilt arms (5) are deposited with the lower end in the bolt (7), fixed in the stable part (2) of the upper frame (1). The tilt system constitutes an actuator (9), deposited with one end rotationally in the stable part (2), and with the second end rotationally fixed with the lever (10). The lever (10) is permanently deposited on the axis (11), where also the cam (12) is seated. In the cam (12) there is a slit (13), where the bolt (14) seated in arms (5) is displaced. The basis of the lift is the lower frame (16), where the arms (17) and (18) of the scissor jack mechanism are rotationally fixed.
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