Importance

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Abstract

A winch, includes a housing which receives therein a rotatable rope drum moveable in a longitudinal direction between two end positions through operation of a gas-actuated piston. A spindle, mounted in fixed rotative engagement to the rope drum and extending in coaxial relationship thereto, carries a nut which is securely fixed to the housing for guiding the spindle in the longitudinal direction. Arranged coaxially between the piston and the rope drum is a pivot bearing which includes two bearing rings arranged side-by-side in a direction of a rotation axis of the pivot bearing, whereby, during operation, an end face of the rope drum rests upon one of the bearing rings, and the piston rests on the other one of the bearing rings. In order to prevent an undesired tilting of the piston in the housing, when the piston is not acted upon by gas pressure, a catch is provided to link the piston and the rope drum so as to restrict an axial displacement of the piston and the rope drum relative to one another to a predetermined value.

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First Claim