| 摘要 |
PROBLEM TO BE SOLVED: To maintain the productivity of a production line approximately equal to or higher than before while effectively suppressing an increase in installation space and installation scale. SOLUTION: The depth d of a valley part 23a is set approximately to such one that a receiving table 23 does not interfere with a stock member 31. The receiving table 23 is raised to z≥z<SB>0</SB>by the position control of a lifting mechanism 21. A symbol z denotes the positional coordinate of a receiving surface 22a in the vertical direction, and a symbol z<SB>0</SB>denotes the positional coordinate of a supporting surface 31a in the vertical direction. The relation of the positional coordinates is examined with respect to a magnitude. When the result is z < z<SB>0</SB>, the rising operation of the receiving table 23 by the lifting mechanism 21 is continued and when z≥z<SB>0</SB>, a retraction instruction is transmitted to a slave task positionally controlling the stock member 3. Based on the retraction instruction, the stock member 31 is move in a retracted state. The problems above can be reasonably solved by, for example, periodically, continuously, and efficiently operating the stock member. COPYRIGHT: (C)2005,JPO&NCIPI
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