| 摘要 |
PROBLEM TO BE SOLVED: To attach a detection device to the optimum position by attaching at least either of an object to be detected and a detector to a mounting body so as to be movable. SOLUTION: When a detection device 43 attached to a guide rail 31 and a slat 29 is not arranged in a detection possible scope and does not operate normally, a screw 72 of a slide unit 51 exposed on a rear surface of the slat 29 is loosened. Consequently, a tip of the screw 72 leaves an elastic engaging claw, which can be elastically displaced. Next, the slide unit 51 is slid in the vertical direction for a base member 53 and is temporarily held at the optimum position. After the optimum position is determined, the screw 72 is tightened to regulate the elastic displacement of the elastic engaging claw, and a position of the slide unit 51 is fixed, thereby moving a magnet 45 for a proximity switch 47. Accordingly, a position of the detection device can be adjusted to the optimum position easily.
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