Free fall winch
AssigneeLiebherr-Components Biberach GmbH
InventorNorbert Hausladen
Life of this patent
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Abstract
The present invention relates to a free-fall winch comprising a drum which can be rotatorily driven by a winch drive via a transmission and can be retained by a holding brake, wherein in addition to the holding brake a free-fall brake is provided for slowing down the drum in free-fall operation. According to the invention, the free-fall brake is arranged between winch drive and holding brake on the one hand and drum on the other hand such that when the free-fall brake is open, the drum is decoupled from the winch drive and from the holding brake and can be rotated at idle with respect to the winch drive and the holding brake.
Claims12
A free-fall winch comprising a drum rotarily drivable by a winch drive via a transmission and retainable by a holding brake, wherein when the drum is in free-fall operation, the drum is slowable by the holding brake and a free-fall brake, wherein the holding brake is between the winch drive and the free-fall brake, wherein a first end of the free-fall brake is non-rotatably connected to the drum and a second end of the free-fall brake is connected to a transmission element of the transmission so that when the free-fall brake is open and when the free-fall brake is closed, at least part of the free-fall brake is always rotatable with the drum and wherein when the free-fall brake is open, the drum is decoupled from the winch drive and from the holding brake.
Dependencies are inferred from the claim text.