Patent ID: 8474549
Filing Date: 2013-07-02
Classification: E21B,E21D

Abstract:
1. A method for handling rods in a rock drilling rig, the method comprising the steps of: storing elongated rods into a linear rod magazine, in which the rods are supported parallel to each other, side by side, and at a distance from one another, moving the rods with a feed member in the rod magazine, and moving a rod that is in the rod magazine by means of transfer members to a pre-determined centre parallel to the rods, or, correspondingly, from the centre into the rod magazine, using a feed member provided with a screw surface for moving the rods in the rod magazine, preventing the displacement of the rods from contact with the screw surface, supporting the rods with the screw surface, and rotating the feed member about its rotation axis, the rods thus moving in the rod magazine towards a feed station located at an outermost end thereof or away from the feed station, depending on the direction of rotation, due to the influence of the screw surface, wherein the feed member in the rod magazine is tilted in relation to the rods to be handled on a plane parallel to the longitudinal axes of the rods.