| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric movable shelf which is controlled and prevented from bias moving by untouchable sensors constantly and securely operating even when the way where the single movable shelf unit is going is ragged and sloped. SOLUTION: Sensor detecting functional tools 3, 4 are attached to the floor along the ways of plural units of the movable shelves arranged parallel, and magnetic sensors 21, 22 which detect the functional tools 3, 4 are attached to each movable shelf unit. The sensors 21, 22 are attached to be able to go up and down and the sensors 21, 22 and the sensor detecting functional tools 3, 4 constantly keep a certain distance each other.
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