(19)

(11)

EP 1 706 926 A1

(12)

(43) Date of publication: 04.10.2006 Bulletin 2006/40 (21) Application number: 05701738.6 (22) Date of filing: 14.01.2005

(51) International Patent Classification (IPC):  H02G 11/02(2006.01) B65H 75/42(2006.01) B65H 75/34(2006.01) E21F 17/06(2006.01) (86) International application number: PCT/FI2005/000022 (87) International publication number: WO 2005/069463 (28.07.2005 Gazette 2005/30)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 16.01.2004 FI 20040058 (71) Applicant: Sandvik Tamrock Oy 33330 Tampere (FI)	(72) Inventors: NIEMI, Timo FI-39160 Julkujärvi (FI) KOLLANUS, Jukka FI-33960 Pirkkala (FI) (74) Representative: Kuosmanen, Timo  Kolster Oy Ab, P.O. Box 148, Iso Roobertinkatu 23 00121 Helsinki 00121 Helsinki (FI)