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:
Aug. 26, 2008
Filed:
Jul. 27, 2005
Ingo Noeske, Zweibruecken, DE;
Alfons Weckbecker, Zweibruecken, DE;
Axel Beckmann, Saarbruecken, DE;
Ingo Noeske, Zweibruecken, DE;
Alfons Weckbecker, Zweibruecken, DE;
Axel Beckmann, Saarbruecken, DE;
Terex Demag GmbH, Zweibruecken, DE;
Abstract
The invention proposes a hoisting-cable drive for a mobile crane, which hoisting-cable drive uses a single bottom-hook block () instead of a known double bottom-hook block. However, to prevent this single bottom-hook block () from tilting in the two cable lines (), for example due to possible variations in the elongation of the two cable drives, the hoisting-cable drive according to the invention comprises a kinematic force equilibrium device (), which can equalize such differences. To this effect, another embodiment of the hoisting-cable drive according to the invention uses a hoisting-cable load pickup () within each cable line arrangement so that the rotary speed of the winches () can be varied, taking into account any load differences in the individual hoisting-cable lines (). Furthermore, the invention also proposes that the rotary speed of the winches () be adjusted, taking into account the geometric winch states and crane states.