(19)

(11)

EP 1 866 491 A1

(12)

(43) Date of publication: 19.12.2007 Bulletin 2007/51 (21) Application number: 06701164.3 (22) Date of filing: 20.01.2006

(51) International Patent Classification (IPC):  E04B 2/70(2006.01) (86) International application number: PCT/FI2006/050035 (87) International publication number: WO 2006/095052 (14.09.2006 Gazette 2006/37)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 11.03.2005 FI 20055112 (71) Applicant: Juutilainen, Markku 11120 Riihimäki (FI)	(72) Inventor: Juutilainen, Markku 11120 Riihimäki (FI) (74) Representative: Träskman, Berndt Hilding  Berggren Oy Ab, P.O. Box 16 00101 Helsinki 00101 Helsinki (FI)