EP 2358487 B1 20130424 - METHOD AND APPARATUS FOR MANUFACTURING SPIRAL-REINFORCEMENTS FOR REINFORCED CONCRETE
Title (en)
METHOD AND APPARATUS FOR MANUFACTURING SPIRAL-REINFORCEMENTS FOR REINFORCED CONCRETE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON SPIRALFÖRMIGEN ARMIERUNGEN FÜR ARMIERTEM BETON
Title (fr)
PRCÉDÉ ET MACHINE DE FABRICATION D'ARMATURES EN SPIRALE POUR BETON ARME
Publication
Application
Priority
- IB 2009054478 W 20091012
- IT BO20080637 A 20081015
Abstract (en)
[origin: WO2010044052A2] The method for manufacturing spiral reinforcements provides for feeding a metal wire (2) through a foldingunit (5) provided with a central mandrel (7) and an eccentric folding pin (8), having parallel axis, and for performing successive folds of said metal wire (2) with respect to the longitudinal feed axis (A), to produce a succession of polygonal coils (20) designed to form a spiral-reinforcement (21) constituted by a sequence of perpendicular tracts (22) and of oblique tracts (23) with respect to the longitudinal axis (L) of the spiral. On at least one side of the polygonal coils (20), to form said oblique tracts (23), are made a first fold (23a) on a plane orthogonal to the axis of the mandrel (7) and of the eccentric folding pin (8) and at least a second fold (23b) extended in a third dimension suitably inclined with respect to the aforesaid plane.
IPC 8 full level
B21D 11/12 (2006.01); B21F 1/00 (2006.01); E04C 5/06 (2006.01)
CPC (source: EP)
B21D 11/06 (2013.01); B21D 11/12 (2013.01); B21F 1/00 (2013.01); B21F 27/122 (2013.01); E04C 5/0618 (2013.01)
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 MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010044052 A2 20100422; WO 2010044052 A3 20100701; WO 2010044052 A4 20100902; DK 2358487 T3 20130729; EP 2358487 A2 20110824; EP 2358487 B1 20130424; ES 2412382 T3 20130711; IT 1391412 B1 20111223; IT BO20080637 A1 20100416
DOCDB simple family (application)
IB 2009054478 W 20091012; DK 09744193 T 20091012; EP 09744193 A 20091012; ES 09744193 T 20091012; IT BO20080637 A 20081015