(19)

(11)

EP 2 531 663 A1

(12)

(43) Date of publication: 12.12.2012 Bulletin 2012/50 (21) Application number: 11739446.0 (22) Date of filing: 01.02.2011

(51) International Patent Classification (IPC):  E04B 1/00(2006.01) E04D 13/04(2006.01) B63B 29/02(2006.01) (86) International application number: PCT/FI2011/050083 (87) International publication number: WO 2011/095689 (11.08.2011 Gazette 2011/32)

(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 (30) Priority: 04.02.2010 FI 20105102 (71) Applicant: Jukova OY 21430 Yliskulma (FI)	(72) Inventor: VAIRINEN, Erkki FI-21430 Yliskulma (FI) (74) Representative: LEITZINGER OY  Tammasaarenkatu 1 00180 Helsinki 00180 Helsinki (FI)