The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2006
Filed:
Feb. 12, 2002
Rüdiger Zollondz, Hornbach, DE;
Hans-peter Franzen, Walshausen, DE;
Rüdiger Zollondz, Hornbach, DE;
Hans-Peter Franzen, Walshausen, DE;
Terex-Demag & Co. KG, Zweibruecken, DE;
Abstract
The invention relates to a bottom hook block system for a given maximum load, for providing differently portative bottom hook blocks for a crane, especially for a heavy lift crane. The bottom hook block system comprises four individual roller blocks () with a plurality of pulley blocks, two load hooks () and two intermediate links () by means of which two individual roller blocks (or) can be combined to a double roller block (). An equalizing link unit () consists of two equalizing links () that are interlinked via a joint support () with a vertical and at least one horizontal rotational axis. One of the equalizing links () is linked via a first horizontal hinge () with the two intermediate links (). The other equalizing link () is linked via at least one bearing block () with a second horizontal hinge () with the two load hooks (). The load hooks () can be swiveled about a vertical rotational axis in the respective bearing block (). A bearing connection () is provided in at least one of the intermediate links (), the connecting dimensions corresponding to the second horizontal hinge ().