(19)

(11)

EP 2 021 574 A1

(12)

(43) Date of publication: 11.02.2009 Bulletin 2009/07 (21) Application number: 07722608.2 (22) Date of filing: 14.05.2007

(51) International Patent Classification (IPC):  E06C 7/18(2006.01) (86) International application number: PCT/DK2007/000229 (87) International publication number: WO 2007/131508 (22.11.2007 Gazette 2007/47)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 16.05.2006 DK 200600685 (71) Applicant: Avanti Stigefabrik A/S DK-3400 Hillerod (DK)	(72) Inventor: MIDTGAARD, Søren 1820 Frederiksberg C (DK) (74) Representative: Münzer, Marc Eric  Zacco Denmark A/S Hans Bekkevolds Allé 7 2900 Hellerup 2900 Hellerup (DK)