Traversing hoists – Adjustable to transport or nonuse position – Collapsible or foldable boom
Patent
1996-12-11
1998-09-01
Brahan, Thomas J.
Traversing hoists
Adjustable to transport or nonuse position
Collapsible or foldable boom
212232, 212298, B66C 2342
Patent
active
057998078
ABSTRACT:
The present invention relates to a mobile crane with a telescoping jib hinged to its superstructure which jib can be luffed by a luffing ram which is hinged to the telescoping jib and the superstructure, with a guy pole hinged on the rear side of the telescoping jib in the upper area of its hinge section which guy pole can be raised by a hydraulic ram, and with a winch by which a guy rope extending from the tip of the guy pole to the top part of the inner telescope section or a truss of an upper telescope section can be tautened. In accordance with the invention the guy pole is guyed over the superstructure, the base or the hinge axle of the hinge section or the lower area of the hinge section by a rope or by a rod of a predetermined length and the winch is positioned in the area of the tip of the guy pole.
REFERENCES:
patent: 4394914 (1983-07-01), Privat
Brahan Thomas J.
Liebherr-Werk Ehingen GmbH
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