(19)

(11)

EP 3 559 376 A1

(12)

(43) Date of publication: 30.10.2019 Bulletin 2019/44 (21) Application number: 17825795.2 (22) Date of filing: 14.12.2017

(51) International Patent Classification (IPC):  E04H 1/04(2006.01) E04B 1/19(2006.01) (86) International application number: PCT/EP2017/082920 (87) International publication number: WO 2018/114628 (28.06.2018 Gazette 2018/26)

(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: MA MD TN (30) Priority: 21.12.2016 FI 20166002 (71) Applicant: Vinnari, Risto 20100 Turku (FI)	(72) Inventor: Vinnari, Risto 20100 Turku (FI) (74) Representative: Bjerkéns Patentbyrå KB (Stockholm)  Box 5366 102 49 Stockholm 102 49 Stockholm (SE)