) ( (51) International Patent Classification: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, E05B 3/06 (2006.01) E05B 63/00 (2006.01) DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP,(21) International Application Number: KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, PCT/EP20 19/059408 MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO,