| 摘要 |
A device (10) for transforming an alternating linear movementinto a rotary motion in a predetermined angular direction. Thedevice comprises a support (12), a driven shaft (14) rotatably supported on the support (12), and actuating means (16a, 16b) which move with a substantially linear alternating movement, having, from a starting position, an active section and a return section or a section for resetting to the start of active section position. There is a driven shaft rotation unit, comprising first transformation means designed to transform the alternating linear motion into an alternating angular movement and second transformation means (18) designed to transform the bi-directional rotary movement of the first transformation means into a unidirectional rotary motion of the driven shaft (14). The second transformation means are freewheel means (18a, 18b) positioned coaxially on the shaft so as to cause the latter to rotate in the angular direction and to allow free return backward, in the opposite angular direction. There are also special means (16b, 16a) for resetting the actuating means to the start of active section position.
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