| 摘要 |
The invention relates to a reel for a life-line comprising a frame, a winding member journalled in said frame so as to be rotatable about a rotary axis, damping means connected on the one hand with the frame and on the other hand with the winding member and counteracting the rotation of the winding member, said damping means comprising at least one cam member and a plurality of piston pumps rotatably co-operating herewith along a relative path of movement with respect to one another and each having a cylinder and a piston displaceable therein and being in contact with the cam member, while of each pair of pumps, whose pistons are moved in opposite senses by the cam member, the cylinders communicate with one another through a channel having a restriction. In order to provide a reel capable of providing powerful damping, which is nevertheless compact, the reel comprises one set of pumps having a plurality of pump pairs which co-operate with the cam member along one and the same relative path of movement and which communicate each with a common channel portion through a restriction.
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