EP 2203266 B1 20190508 - PIPE BENDING MACHINE WITH BENDING MANDREL HAVING A LOAD BEARING STRUCTURE WHICH IS PARTICULARLY RESISTANT TO WORKING STRESSES
Title (en)
PIPE BENDING MACHINE WITH BENDING MANDREL HAVING A LOAD BEARING STRUCTURE WHICH IS PARTICULARLY RESISTANT TO WORKING STRESSES
Title (de)
ROHRBIEGEMASCHINE MIT EINEM BIEGEDORN MIT LASTTRAGSTRUKTUR, DIE GEGEN ARBEITSBELASTUNGEN BESONDERS WIDERSTANDSFÄHIG IST
Title (fr)
MACHINE A PLIER LES TUYAUX POURVUE D'UN MANDRIN DE PLIAGE A STRUCTURE PORTANTE PARTICULIEREMENT RESISTANTE AUX CONTRAINTES
Publication
Application
Priority
- IT 2008000590 W 20080915
- IT RM20070483 A 20070917
Abstract (en)
[origin: WO2009040859A2] A pipe bending machine with bending mandrel having a load bearing structure which is particularly resistant to working stresses, comprises an extractor (2) which is fixed in a rear portion of the pipe bending machine, and mandrel rod (13) which extends with its longitudinal axis (g), from the extractor beyond a front portion of the machine, where a bending head (7) which is provided with a die (8) stresses a pipe (T) to be bent, which is inserted in a mandrel (12), by a traction resultant force that is transmitted along the mandrel rod (13) to the extractor (2) that counteracts with a resultant restraining reaction. The pipe bending machine comprises a load bearing structure (1) having a profile such that it contains inside the longitudinal axis (g) of the mandrel rod (13), in such a way that the load bearing structure (1) is subjected mainly to compression stresses.
IPC 8 full level
CPC (source: EP KR US)
B21D 9/04 (2013.01 - KR); B21D 9/073 (2013.01 - EP US); B21D 9/16 (2013.01 - KR); B21D 11/02 (2013.01 - KR); B21D 11/22 (2013.01 - KR)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009040859 A2 20090402; WO 2009040859 A3 20091015; BR PI0816937 A2 20110830; BR PI0816937 B1 20190924; CA 2699595 A1 20090402; CA 2699595 C 20160712; CN 101801557 A 20100811; CN 101801557 B 20121114; EP 2203266 A2 20100707; EP 2203266 B1 20190508; ES 2741531 T3 20200211; IT RM20070483 A1 20090318; JP 2010538838 A 20101216; JP 5438006 B2 20140312; KR 101562506 B1 20151022; KR 20100068280 A 20100622; MX 2010002919 A 20100527; RU 2010115339 A 20111027; RU 2438819 C1 20120110; US 2010206036 A1 20100819
DOCDB simple family (application)
IT 2008000590 W 20080915; BR PI0816937 A 20080915; CA 2699595 A 20080915; CN 200880107462 A 20080915; EP 08834239 A 20080915; ES 08834239 T 20080915; IT RM20070483 A 20070917; JP 2010524627 A 20080915; KR 20107007987 A 20080915; MX 2010002919 A 20080915; RU 2010115339 A 20080915; US 67833308 A 20080915