(19)
(11) EP 2 475 839 A1

(12)

(43) Date of publication:
18.07.2012 Bulletin 2012/29

(21) Application number: 10815037.6

(22) Date of filing: 01.09.2010
(51) International Patent Classification (IPC): 
E21B 19/08(2006.01)
B25D 17/24(2006.01)
 E21B 7/02(2006.01)
(86) International application number:
PCT/FI2010/050680
(87) International publication number:
WO 2011/029992 (17.03.2011 Gazette 2011/11)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

(30) Priority: 08.09.2009 FI 20095923

(71) Applicant: Sandvik Mining and Construction Oy
33330 Tampere (FI)

(72) Inventors:
  • SIVULA, Sampo
    FI-33330 Tampere (FI)
  • SAUKKO, Pekka
    FI-33330 Tampere (FI)
  • LUOMA, Lassi
    FI-33330 Tampere (FI)
  • PYÖRNY, Ilmo
    FI-33330 Tampere (FI)
  • SARIN, Esko
    FI-33330 Tampere (FI)
  • MELLIN, Velipekka
    FI-33330 Tampere (FI)
  • PYYKKÖ, Mikko
    FI-33330 Tampere (FI)
  • MUUTTONEN, Timo
    FI-33330 Tampere (FI)

(74) Representative: Kuosmanen, Timo 
Kolster Oy Ab Iso Roobertinkatu 23 P.O. Box 148
00121 Helsinki
00121 Helsinki (FI)

   


(54) ROCK DRILLING UNIT, FEED BEAM, AND METHOD FOR DAMPING VIBRATION