Large mobile crane

US10246310B2 · kind B2 · utility

Assignee

• Terex Global GmbH · CH

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: Feb 3, 2014
• Grant date: Apr 2, 2019
• Expiry date: Feb 3, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66C23/36
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A large mobile crane including an undercarriage. The undercarriage includes a middle section between tracks, wherein a distance between the tracks can be increased or decreased by the insertion or removal of expansion parts. The two tracks are connected on opposite sides of the undercarriage to permit movement of the large mobile crane. The undercarriage also includes a drive unit, a superstructure, one or more control stations, at least two main booms, at least one derrick boom, and at least two lifting devices and counterweights. The counterweights are either arranged separately of or mounted on the undercarriage. The large mobile crane further includes a circular track, and support rollers attached to the superstructure, wherein the support rollers ride on the circular track, and wherein the circular track is an integral part of the expansion parts.