(19)

(11)

EP 1 996 501 A1

(12)

(43) Date of publication: 03.12.2008 Bulletin 2008/49 (21) Application number: 07748343.6 (22) Date of filing: 16.03.2007

(51) International Patent Classification (IPC):  B66C 9/08(2006.01) F16B 21/02(2006.01) E02F 3/627(2006.01) (86) International application number: PCT/SE2007/050167 (87) International publication number: WO 2007/108767 (27.09.2007 Gazette 2007/39)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 21.03.2006 SE 0600630 (71) Applicant: BT Industries Aktiebolag S-59581 Mjölby (SE)	(72) Inventors: CARDELL, Per-Erik S-589 33 Linköping (SE) ALVETEG, Magnus S-590 33 Borensberg (SE) (74) Representative: Axell, Kristina et al Albihns AB P.O. Box 5581 114 85 Stockholm 114 85 Stockholm (SE)