Suspended control device

US7504602B2 · kind B2 · utility

Assignee

• Demag Cranes & Components GmbH · DE

Inventors

• Michael Rohr · Dortmund, DE
• Udo Gersemsky · Herdecke, DE
• Wolfgang Krebs · Wetter, DE
• Anton Munzebrock · Dortmund, DE
• Rudiger Ostholt · Wetter, DE
• Giuliano Persico · Wetter, DE
• Erik Appel · Wetter, DE
• Oliver Ullrich · Miami, US
• Burkhard Hasenack · Hagen, DE
• Holger Freitag · Bochum, DE
• Jurgen Heun · Dortmund, DE

Key dates

• Filing date: Jun 30, 2003
• Grant date: Mar 17, 2009
• Expiry date: Sep 30, 2024

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66C13/40
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a suspended control device (20) which is suspended by means of a control line (1, 24) connected to a unit to be controlled (21). Said suspended control device is especially a control switch or a suspended push-button switch for controlling hoisting equipment, the control line (1, 24) comprising electrical lines (2) for transmitting control signals, and a traction relief element (22) which is supported at the top, on the unit (21), and used to absorb weight and tractive forces. The aim of the invention is to provide a suspended control device (20) whereby the length of the control line (1, 24) can be easily changed. To this end, a storage element for receiving and releasing a defined length of the electrical lines (2) is provided behind the region wherein the traction relief element (22) is supported, seen in the direction of the unit (21) from the suspended control device (20).