| 摘要 |
PROBLEM TO BE SOLVED: To obtain a detection plate which can be attached to a track with a smaller number of bolts, without requiring nuts, and can be adjusted easily for position. SOLUTION: A detecting plate 18 for photoelectric sensor is attached to a longitudinal dovetail groove 17 of a track 11. A main body 18A of the plate 18 has a square or rectangular shape and rising pieces 18B are respectively formed on the facing side edges of the main body 18A. The head section of each rising piece 18B has a pawl section 18D, having chamfered sections 18C on both side in the side view of the plate 18, and the main body 18A has a female screw 18E formed in the central part of the main body 18A on the line connecting the rising pieces 18B to each other.
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