| 摘要 |
PROBLEM TO BE SOLVED: To stop where a center of a pallet coincided with a predetermined position of an automated warehouse side performing pallet delivery work with a stacker crane by actuating a stoppage positioning sensor for a self-propelled carriage. SOLUTION: Sensors 30a and 30b being constituent members of an aligning device 18 are moved to a position corresponding to a center of a pallet 15 via rack gears 24a and 24b each formed at end parts on opposing sides of a pair of centering arms 17, and a pinion 19. And the self-propelled carriage is moved to a predetermined position in a state wherein a center line between the sensors 30a and 30b and a center line of the pallet 15 are coincided with each other. By moving the self-propelled carriage, the sensors 30a and 30b detect an installed detecting plate 7 and transmits a signal. A travel control device receiving the signal stops a travel driving device 11. Thus the self-propelled carriage stops where the center line between the sensors 30a and 30b and the center line of the detecting plate 7 coincided with each other.
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