To surely incline the axial direction of a drive roller with respect to the axial direction of a guide shaft.
In a stirrer 56, the axial direction of the drive roller 88 is inclined on one side or the other side with respect to the axial direction of the rotating guide shaft 64, and as a result, a frame 82 of a driving/supporting mechanism and a frame 80 of a driven/supporting mechanism are moved on an invert plate 76 side or an invert plate 74 side. Furthermore, when the reach of the frame 82 of the driving/supporting mechanism to the invert plate 76 or the reach of the frame 80 of the driven/supporting mechanism to the invert plate 74 is detected by a reach detection device 108 or a reach detection device 102, an invert motor 114 is driven by a control device 134, and the axial direction of the drive roller 88 is inclined on the other side or one side with respect to the axial direction of the guide shaft 64. The reach detection devices 102 and 108, the invert motor 114, and the control device 134 are electrically driven, and as a result, the axial direction of the drive roller 88 can surely be inclined with respect to the axial direction of the guide shaft 64.
ABE MAMORU
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda