(19)

(11)

EP 4 437 195 A1

(12)

(43) Date of publication: 02.10.2024 Bulletin 2024/40 (21) Application number: 22840788.8 (22) Date of filing: 25.11.2022

(51) International Patent Classification (IPC):  E04B 1/348(2006.01) (52) Cooperative Patent Classification (CPC): E04B 1/34823; E04B 1/34869; Y02B 30/00 (86) International application number: PCT/FI2022/050790 (87) International publication number: WO 2023/094732 (01.06.2023 Gazette 2023/22)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 26.11.2021 FI 20216213 (71) Applicant: SSA Rakennus Oy 01510 Vantaa (FI)	(72) Inventor: KILPELÄINEN, Jorma 01810 Luhtajoki (FI) (74) Representative: Genip Oy  Heikinkatu 7 48100 Kotka 48100 Kotka (FI)