| 摘要 |
The drive unit comprises a first component, which incorporates a rod (4) connected at one end to a piston (3) arranged in a cylinder (5) for carrying out reciprocation movement, and a curve plate (7) fixed at the opposite end of the rod. The curve plate has only a curved part (22,23) on its side turned away from the rod. Another component (9) incorporates two extending vane-shaped parts (10,11) which are connected to the shaft. On each vane outer part, a roller (12,13) is rotatably fixed to roll against the curve plate. A third component (14) formed like the second component is positioned widthways to the second component in the same plane as it and the curve plate. |
