(19)

(11)

EP 2 638 214 A1

(12)

(43) Date of publication: 18.09.2013 Bulletin 2013/38 (21) Application number: 11839290.1 (22) Date of filing: 03.11.2011

(51) International Patent Classification (IPC):  E02D 29/02(2006.01) E01F 8/02(2006.01) (86) International application number: PCT/FI2011/050967 (87) International publication number: WO 2012/062959 (18.05.2012 Gazette 2012/20)

(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: 11.11.2010 FI 20106182 (71) Applicant: Suunnittelupuu Oy 03400 Vihti (FI)	(72) Inventor: SIEKKELI, Jukka FI-03400 Vihti (FI) (74) Representative: Langenskiöld, Tord Karl Walter et al Oy Jalo Ant-Wuorinen Ab Iso-Roobertinkatu 4-6 A 00120 Helsinki 00120 Helsinki (FI)