| 摘要 |
<p>A procedure and device in order to, at a rope winch (L), allow a winching in at two or more speeds, as well as a winching out of a sheet. The device embodies a rotatably mounted rope drum (38) and a shaft (6) driving the same via a transmission (7-14), around which drum (38) a rope is windable, as well as forcing means, such as a crank (1), for allowing the rope drum (38) to be driven by means of the driving shaft (6) in a first direction using at least two different gearings. The loosening of the sheet to an adjusted extent is allowed by the fact that means (5, 35) in/on the crank are actuated at the same time as cranking is carried out, a drive gear (7) of the transmission, which in the normal case drives in the same direction as the crank is cranked, by means of forcing means (17) being brought out of driving engagement with the input shaft (6), the torque nevertheless applied to the input shaft instead being used to release the drive gear (7) from driving engagement in such a manner that the driving coupling between the crank (1) and the transmission (7-14) is temporary disabled to transfer torque, wherein rope wound on the drum of the winch can run out under load from the same.</p> |
