EP 3184482 A1 20170628 - TELESCOPIQUE MAST AND TOWER CRANE WITH AUTOMAITCALLY FOLDABLE TOWER COMPRISING SUCH TELESCOPIQUE MAST
Title (en)
TELESCOPIQUE MAST AND TOWER CRANE WITH AUTOMAITCALLY FOLDABLE TOWER COMPRISING SUCH TELESCOPIQUE MAST
Title (de)
TELESKOPISCHER MAST UND AUTOMATISCH FALTBARER TURMKRAN MIT SOLCH EINEM TELESKPOPISCHEN MAST
Title (fr)
MÂT TÉLESCOPIQUE ET GRUE À TOUR À DÉPLIAGE ET REPLIAGE AUTOMATIQUES COMPRENANT UN TEL MÂT TÉLESCOPIQUE
Publication
Application
Priority
FR 1563222 A 20151223
Abstract (en)
[origin: CN106904542A] The invention discloses a telescopic mast comprising a first sliding mast portion (10) and a second sliding mast portion (20). The first mast portion and the second mast portion have a polygonal cross section comprising at least eight faces. The first mast portion and the second mast portion include at least two main support members and at least two auxiliary support members positioned correspondingly in the two regions separated by the intermediate fiber plane (P31). The main support members and the auxiliary support members transmit the torsional force. The polygonal shape of the cross section of the first mast portion and the second mast portion is configured such that the two main support members transmit the two main forces (F11) generated by the bending and converge at the main crossing point (P11), the two auxiliary supports The component transmits two auxiliary forces (F21) generated by bending and coincides with the auxiliary cross point (P21) away from the main crossing point (P11). The two auxiliary support members transmit the two auxiliary forces (F21) generated by the bending and converge at the auxiliary crossing (P21) away from the main crossing point (P11).
Abstract (fr)
Ce mât télescopique comprend un premier tronçon de mât (10) et un deuxième tronçon de mât (20) coulissants. Les premier et deuxième tronçons de mât ont des sections polygonales à au moins huit faces. Les premier et deuxième tronçons de mât comprennent au moins deux organes d'appui primaires et au moins deux organes d'appui secondaires situés respectivement dans deux régions séparées par un plan de fibre neutre (P31). Les organes d'appui primaires et secondaires transmettent des efforts de torsion. Les formes polygonales des sections transversales des premier et deuxième tronçons de mât sont configurées pour que : les deux organes d'appui primaires transmettent deux forces primaires (F11) résultant de la flexion et concourant en un point d'intersection primaire (P11), les deux organes d'appui secondaires transmettent deux forces secondaires (F21) résultant de la flexion et concourant en un point d'intersection secondaire (P21) distant du point d'intersection primaire (P11).
IPC 8 full level
B66C 23/34 (2006.01)
CPC (source: CN EP)
B66C 23/342 (2013.01 - EP); B66C 23/60 (2013.01 - CN); B66C 23/68 (2013.01 - CN)
Citation (applicant)
EP 0855361 A1 19980729 - POTAIN SA [FR]
Citation (search report)
- [AD] EP 0855361 A1 19980729 - POTAIN SA [FR]
- [A] US 4478014 A 19841023 - POOCK DARWIN N [US], et al
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3184482 A1 20170628; EP 3184482 B1 20171220; CN 106904542 A 20170630; CN 106904542 B 20191105; FR 3046151 A1 20170630; FR 3046151 B1 20180105
DOCDB simple family (application)
EP 16201451 A 20161130; CN 201611198988 A 20161222; FR 1563222 A 20151223