Patent ID: 7887393

Claim:
A moving mechanism for a blast gun for a blasting machine, comprising: an output arm which is disposed in a blasting chamber formed in a cabinet and which moves the blast gun; input means which is disposed outside the blasting chamber and which inputs a movement to be performed by the output arm; and an interlocking unit which is provided to penetrate a wall surface of the cabinet to interlock the input means and the output arm, wherein the output arm has two arm members which are pivotally attached to each other in such a manner that one member can rotate relative to the other, so that the two output arms are interlocked together, the interlocking unit has at least two shafts which are extended inside and outside the cabinet and which are configured to be rotatable by the input means, wherein one of the shafts is located within the other; a first arm member of the two arm members is interlocked to a first shaft of the two shafts, and a second arm member which is rotated in conjunction with a second shaft is provided on the first arm member, and by the rotation of the first shaft or the rotation of the second shaft, the first arm member or the second arm member is configured to be rotatable synchronously with the rotation of the corresponding shaft.