Modular counterweight carriage for cranes, in particular for large crane

US8162160B2 · kind B2 · utility

Assignee

• Terex Demag GmbH · DE

Inventors

• Rüdiger Zollondz · Hornbach, DE
• Alfons Weckbecker · Zweibrücken, DE
• Fritz-Botho Köster · Rockenhausen, DE
• Günter Karp · Herschberg, DE
• Hans-Peter Franzen · Nyköping, SE

Key dates

• Filing date: Oct 13, 2006
• Grant date: Apr 24, 2012
• Expiry date: Oct 13, 2026

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66C23/74
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A large mobile crane includes a revolving superstructure, a main boom hinged to the superstructure, and a derrick boom hinged to the superstructure. A modular counterweight system includes a traveling counterweight and a non-traveling counterweight connected to a crossbeam suspended from the distal end of the derrick boom so that the non-traveling counterweight is activated before the traveling counterweight.