Gripper for a drill string component handling device, method for manoeuvring a gripper, drill string component device and rock drill rig
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United States of America Patent
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Aug 15, 2017
Grant Date -
Nov 19, 2015
app pub date -
Dec 6, 2013
filing date -
Dec 21, 2012
priority date (Note) -
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Abstract
A gripping device for a drill string component handling device in a rock drill rig. Gripper element pairs are supported by a body and include at least one gripper element, being pivotally movable around a pivot joint, between a closed position, including a gripping position, and an open position. The pivotally movable gripper element is pivotal in a respective gripper plane forming a right angle to an axial direction. Each movable gripper element includes an actuation portion, which co-operates with a wedge device being movable in directions parallel to the axial direction for pivoting said movable gripper element. A method, a drill string component handling device for a rock drill rig and a rock drill rig including a drill string component handling device.
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