(19)

(11)

EP 3 781 774 A1

(12)

(43) Date of publication: 24.02.2021 Bulletin 2021/08 (21) Application number: 19717888.2 (22) Date of filing: 12.04.2019

(51) International Patent Classification (IPC):  E06B 3/663(2006.01) (86) International application number: PCT/EP2019/059551 (87) International publication number: WO 2019/201809 (24.10.2019 Gazette 2019/43)

(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 Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 17.04.2018 EP 18167693 (71) Applicant: ROLLTECH A/S 9800 Hjørring (DK)	(72) Inventor: PEDERSEN, Peter 9800 Hjørring (DK) (74) Representative: Chas. Hude A/S  H.C. Andersens Boulevard 33 1780 Copenhagen V 1780 Copenhagen V (DK)