(19)

(11)

EP 0 880 629 A1

(12)

(43) Date of publication: 02.12.1998 Bulletin 1998/49 (21) Application number: 97900615.0 (22) Date of filing: 09.01.1997

(51) International Patent Classification (IPC):  E04D 13/ 076( . ) (86) International application number: PCT/FI1997/000007 (87) International publication number: WO 1997/025492 (17.07.1997 Gazette 1997/31)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE (30) Priority: 11.01.1996 FI 19960000020U (71) Applicant: Rinta-Jouppi, Yrjö 28760 Pori (FI)	(72) Inventor: Rinta-Jouppi, Yrjö 28760 Pori (FI) (74) Representative: Simmelvuo, Markku Kalevi, et al  Papula Rein Lahtela Oy, P.O. Box 981 00101 Helsinki 00101 Helsinki (FI)