EP 0888997 B1 20030129 - Mast foldable in three elements with folding/unfolding device for tower crane
Title (en)
Mast foldable in three elements with folding/unfolding device for tower crane
Title (de)
Turm, zusammenklappbar in drei Elemente, mit Vorrichtung zum Zusammenklappen/Aufklappen für einen Turmkran
Title (fr)
Mâture pliable en trois éléments avec dispositif de pliage/dépliage pour grue à tour
Publication
Application
Priority
FR 9708621 A 19970702
Abstract (en)
[origin: EP0888997A1] The tower crane foldable mast is made from three components (6,7,8). The lower component (6) is articulated by its base (4) on the crane rotating chassis (3). An intermediate folding component (7) of relatively small length, is articulated (9) at the top of the lower mast component. The upper mast component (8) is articulated at its base (10) on the intermediate component and carries at its top the crane jib (13). The folding/unfolding device comprises a shroud (23) articulated by one end (24) to the rotating chassis and by the other end (25) to the intermediate component. A tie-rod (30) is articulated by one end (31) to the intermediate component and by its other end (21) to a kingpost (19) carried by the jib.
IPC 1-7
IPC 8 full level
B66C 23/42 (2006.01); B66C 23/34 (2006.01); B66C 23/62 (2006.01)
CPC (source: EP)
B66C 23/34 (2013.01); B66C 23/348 (2013.01)
Designated contracting state (EPC)
BE DE ES IT
DOCDB simple family (publication)
EP 0888997 A1 19990107; EP 0888997 B1 20030129; DE 69811002 D1 20030306; DE 69811002 T2 20031016; ES 2190576 T3 20030801; FR 2765564 A1 19990108; FR 2765564 B1 19990827; JP 4212069 B2 20090121; JP H1171093 A 19990316; RU 2193007 C2 20021120
DOCDB simple family (application)
EP 98420106 A 19980625; DE 69811002 T 19980625; ES 98420106 T 19980625; FR 9708621 A 19970702; JP 18761898 A 19980702; RU 98112609 A 19980701