Patents Assigned to SANDVIK MINING AND CONSSTRUCTION OY
  • COUPLING ARRANGEMENT FOR COUPLING ROCK DRILL SHANK
    Publication number: 20100116518
    Abstract: The invention relates to a coupling arrangement for coupling a drill shank of a rock drill unrotatably but axially movably. The coupling arrangement comprises power transmission members between the surfaces of the drill shank and the rotation bushing, which transmission members rotate along the surfaces, as the drill shank moves longitudinally to the rotation bushing, and transmit the rotation torque from the rotation bushing to the drill shank.
    Type: Application
    Filed: April 24, 2008
    Publication date: May 13, 2010
    Applicant: SANDVIK MINING AND CONSSTRUCTION OY
    Inventors: Mauri Esko, Markku Keskiniva, Juha Piispanen, Aimo Helin