EP 3816091 B1 20231011 - TOWER CRANE WITH AUTOMATIC FOLDING AND UNFOLDING STANCHION
Title (en)
TOWER CRANE WITH AUTOMATIC FOLDING AND UNFOLDING STANCHION
Title (de)
TURMKRAN MIT AUTOMATISCH EIN- UND AUSKLAPPBAREM GEGENAUSLEGER
Title (fr)
GRUE À TOUR AVEC POINÇON À PLIAGE ET DÉPLIAGE AUTOMATIQUES
Publication
Application
Priority
FR 1912237 A 20191031
Abstract (en)
[origin: US2021130141A1] A tower crane configured to fold and unfold between a working configuration and a transport configuration includes a boom hinged in rotation relative to a mast about a main axis of rotation. The tower crane includes a rear retainer fastened to a frame supporting the mast and to a stanchion. The stanchion extends the boom rearwardly of the main axis of rotation and is displaceable relative to the boom between a working position and a transport position. The tower crane further includes a lifting cable connected to a winding device exerting, on the lifting cable, a tension force applied on stanchion by a return system configured to cooperate with the lifting cable, so as to cause displacement of said stanchion from the working position to the transport position.
IPC 8 full level
B66C 23/34 (2006.01)
CPC (source: EP US)
B66C 13/18 (2013.01 - US); B66C 23/16 (2013.01 - US); B66C 23/344 (2013.01 - EP US); B66C 23/348 (2013.01 - EP); B66C 23/68 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3816091 A1 20210505; EP 3816091 B1 20231011; FR 3102763 A1 20210507; FR 3102763 B1 20211112; PT 3816091 T 20240105; US 11420851 B2 20220823; US 2021130141 A1 20210506
DOCDB simple family (application)
EP 20204539 A 20201029; FR 1912237 A 20191031; PT 20204539 T 20201029; US 202017085832 A 20201030