Device for detecting the replacement state of wear of a high-strength fiber rope during use in lifting gear

US10359347B2 · kind B2 · utility

Assignee

• Liebherr-Components Biberach GmbH · DE

Inventors

• Ilaka Mupende · Neu-Ulm, DE
• Horst Zerza · Biberach, DE

Key dates

• Filing date: Jul 24, 2014
• Grant date: Jul 23, 2019
• Expiry date: Dec 6, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2203/028
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An arrangement for detecting the discard state of a high-strength fiber rope when used on such hoists, with a device for determining at least one rope parameter and an evaluation unit for evaluating the rope parameter, and providing a discard signal depending upon the evaluation of the rope parameter. The determination device comprises bending stiffness determination means for determining the bending stiffness of the rope, whereby the evaluation unit provides the discard signal depending on the determined bending stiffness of the rope.