To be able to prevent influences on conveyance of an upper stage conveyor and a lower stage conveyor to which a work is related, and to select and cut work accurately.SOLUTION: The folded conveyor 30 moves first to the lower stage conveyor 20 side, and in this state, the vertical movement mechanism 59 vertically moves downward by the rotation of the rotation lever 57 against the resilient force of the coil spring 54 It moves. At this time, the folding conveyor 30 becomes the lowest position, and a large space is generated between the folded conveyor 30 and the upper stage conveyor 10. Further, since the return conveyor 30 is tilted, the workpiece 100 moves from right to left. At this point, the position is a maximum distance away from the straight line of the upper stage conveyor 10. Here, when the external force is released so as to stop the rotation by the one reciprocating motion of the handle lever 70, the rotation of the rotation lever 57 is released and the elevating bearing unit 41 Rises vertically. Along with this, the folding conveyor 30 reduces the tilt and becomes the linear position of the upper stage conveyor 10.(FIG.
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