METHOD FOR BENDING A BAND OF SHEET METAL TO GIVE THE BAND A HELICAL SHAPE AND APPARATUS THEREFOR - Patent 2734314

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EP 2 734 314 A1

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(43)	Date of publication:
	28.05.2014 Bulletin 2014/22

(21)	Application number: 12740689.0

(22)	Date of filing: 22.06.2012

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International Patent Classification (IPC):

B21D 11/06^(2006.01)

(86)	International application number:
	PCT/IB2012/053161

(87)	International publication number:
	WO 2013/011394 (24.01.2013 Gazette 2013/04)

(84)	Designated Contracting States:
	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

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Priority:

21.07.2011 IT BO20110435

(71)	Applicant: Tecnofer S.r.l.
	46035 Ostiglia (MN) (IT)

(72)	Inventor:
	VERZOLA, Lorenzo I-45030 Castelnovo Bariano (RO) (IT)

(74)	Representative: Dall'Olio, Christian et al
	INVENTION S.r.l. Via delle Armi, 1 40137 Bologna 40137 Bologna (IT)

(54)	METHOD FOR BENDING A BAND OF SHEET METAL TO GIVE THE BAND A HELICAL SHAPE AND APPARATUS THEREFOR