| 摘要 |
PROBLEM TO BE SOLVED: To provide a rack facility admitting accurately the execution of the width shift correction control of each moving rack and its attitude control and capable of reducing the costs. SOLUTION: Acceleration sensors 28 to sense the two-dimensional accelerations x and y of each moving rack in running are installed at the left and right ends of the rack 1 in the direction perpendicular to its running direction, and the moving rack 1 is equipped with a controller which determines the absolute coordinates (X<SB>R</SB>, Y<SB>R</SB>) and (X<SB>L</SB>, Y<SB>L</SB>) of each acceleration sensor 28 using the sensed data of the two-dimensional accelerations x and y by the acceleration sensors 28, corrects the deviations in the left and right directions B from the running path i of the moving rack in association with its running on the basis of the obtained absolute coordinates, and corrects the attitude of the rack 1 in the direction perpendicular to the running direction. According to this constitution, the width shift correction control and attitude control of the rack 1 can be executed accurately, and the sensing means to execute the controls may be only two acceleration sensors 28, to lead to a reduction of the cost. COPYRIGHT: (C)2005,JPO&NCIPI
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