| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate round about routing of extension harness by detecting this origin as the moving reference of a horizontal moving body, limit position in the origin size which will become the allowable limit point of the ordinary movement of the horizontal moving body and limit point in the end side. SOLUTION: A plurality of consoles A to D are coupled with an auto-changer body. The consoles A to D arranged in one end side and the consoles A to D arranged in the other end side are respectively provided with an optical shutter plate as a detection object in the origin size and an optical shutter plate 406 as a detection object in the end side. Each optical shutter plate has a small width shielding section and a large width shielding section and these shielding sections are arranged at the position passing the detection area of a couple of horizontal position detector sensors 403, 404. The horizontal moving body 30 during the initial operation is located at the origin, defining the limit position in the origin side and the limit position in the end side are defined as the allowable limit point of usual movement of the horizontal moving body 30.</p> |
