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US 12,606,422 B2Granted
Lifting gear, and method for determining slack rope on the lifting gear
AssigneeLiebherr-Werk Biberach GmbH
InventorsClemens Maier, Tobias Englert
Life of this patent
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Abstract
The present invention relates to lifting gear comprising a hoist rope, on which a load-receiving means is provided for receiving and lifting a load, and a determining device for determining slack rope on the hoist rope, wherein the aforementioned determining device comprises an inclination sensor system for detecting an inclination and/or a tilt rate and/or a tilt acceleration of the load-receiving means and provides a slack-rope signal if the detected inclination and/or tilt rate and/or tilt acceleration of the load-receiving means exceeds a predetermined limit value.
Claims16
A lifting gear comprising:
- a hoist rope;
- a load receiver on the hoist rope, wherein the load receiver is configured to receive and lift a load;
- and
- a determining device for determining slack rope on the hoist rope;
- wherein the determining device comprises an inclination sensor system for detecting an inclination and/or a tilt rate and/or a tilt acceleration of the load receiver and is configured to provide a slack-rope signal if the detected inclination and/or tilt rate and/or tilt acceleration of the load receiver exceeds a predetermined limit value;
- and
- wherein the determining device comprises an acceleration sensor system for detecting a first acceleration at a hoist winch and/or a hoist drive for the hoist rope and for detecting a second acceleration at the load receiver, and wherein the determining device is configured to provide the slack-rope signal when one of the first or second accelerations deviate from the other of the first or second accelerations above a predetermined amount.
4 more elements
Dependencies are inferred from the claim text.