To provide a loader system for a machine tool enabling a travelling body to keep its attitude long in the linear direction when entering a curved portion from a linear portion while avoiding the side slip of travelling wheels of the travelling body when entering the curved portion from the linear portion.
A travelling guide 4 has the linear portion 4A and the curved portion 4B, and has an outer diameter side guide face 4o and an inner diameter side guide face 4i, and a wheel guide face 4u. The travelling body 3 having a workpiece holding means has the travelling wheels 21i, 21o, and has an outer diameter side roller 23 and an inner diameter side roller 24 guided to the outer diameter side guide face 4o and the inner diameter side guide face 4i of the travelling guide 4, respectively. The outer diameter side roller 23 is circularly arranged along the outer diameter side guide face 4o of the curved portion 4B. The travelling wheel 21o on the outer diameter side is freely changeable in direction. When entering the curved portion 4A, it is forcibly changed in direction via a direction operator 25 by a cam face 26 of the travelling guide 4.
ISHIKAWA KAZUHIRO
Shuji Sugimoto
Kenro Tsutsumi