| 摘要 |
An apparatus for clamping and longitudinally moving an elongate tension or traction means such as a wire rope relative to a casing of a lifting apparatus is provided with two pairs clamping jaws operated by clamping levers. Pairs of clamping jaws are alternately closed against the rope to move the rope in the direction of traction. In order to avoid subjecting the rope to compressive loads in the longitudinal direction during clamping, the clamping jaws are interconnected so that they are immovable in relation to one another in the longitudinal direction of the wire rope. Clamping keys for generating the clamping pressure are irrotationally connected to the clamping levers and pivotally mounted in circular apertures of one of the clamping jaws. These clamping keys slidably press onto the other clamping jaw directly or indirectly such that they cannot apply a compressive force in the longitudinal direction of the wire rope to the clamping jaw. |
