(19)

(11)

EP 4 680 813 A1

(12)

(43) Date of publication: 21.01.2026 Bulletin 2026/04 (21) Application number: 23837423.5 (22) Date of filing: 19.12.2023

(51) International Patent Classification (IPC):  E04B 1/76(2006.01) E04F 13/08(2006.01) (52) Cooperative Patent Classification (CPC): E04B 1/7629; E04F 13/0803 (86) International application number: PCT/IB2023/062931 (87) International publication number: WO 2024/189425 (19.09.2024 Gazette 2024/38)

(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: 15.03.2023 IT 202300004893 (71) Applicant: Progetto Sisma S.r.l. 41042 Fiorano Modenese (MO) (IT)	(72) Inventors: DALLARI, Andrea 41042 Fiorano Modenese, Modena (IT) GAMBARELLI, Marco 41042 Fiorano Modenese, Modena (IT) TENEGGI, Cristian 41042 Fiorano Modenese, Modena (IT) VENTURELLI, Andrea 41042 Fiorano Modenese, Modena (IT) (74) Representative: Gamba, Alessandro et al Jacobacci & Partners S.p.A. Piazza della Vittoria, 11 25122 Brescia 25122 Brescia (IT)