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(11)

EP 1 667 886 A1

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(43) Date of publication: 14.06.2006 Bulletin 2006/24 (21) Application number: 04775456.9 (22) Date of filing: 22.09.2004

(51) International Patent Classification (IPC):  B61G 7/10(1968.09) (86) International application number: PCT/SE2004/001354 (87) International publication number: WO 2005/032906 (14.04.2005 Gazette 2005/15)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 03.10.2003 SE 0302618 (71) Applicant: DELLNER COUPLERS AB S-791 95 Falun (SE)	(72) Inventors: HEINAS, Stefan S-791 56 Falun (SE) WESTMAN, Anders S-791 33 Falun (SE) LENNARTSSON, Svante S-791 46 Falun (SE) (74) Representative: Fröderberg, Anders Oskar  Dr Ludwig Brann Patentbyra AB, P.O. Box 171 92 104 62 Stockholm 104 62 Stockholm (SE)