(19)

(11)

EP 0 564 454 A1

(12)

(43) Date of publication: 13.10.1993 Bulletin 1993/41 (21) Application number: 91916708.0 (22) Date of filing: 13.09.1991

(51) International Patent Classification (IPC):  B61B 13/ 00( . ) B62D 1/ 26( . ) (86) International application number: PCT/SE1991/000619 (87) International publication number: WO 1992/005056 (02.04.1992 Gazette 1992/08)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI NL SE (30) Priority: 13.09.1990 SE 19900002907 (71) Applicant: ABY, Stig S-560 25 Bottnaryd (SE)	(72) Inventor: ABY, Stig S-560 25 Bottnaryd (SE) (74) Representative: Engström, Christer  Smultronvägen 61 S-331 42 Värnamo S-331 42 Värnamo (SE)