초록 ▼

A library unit including a plurality of frames and a plurality of cell shelves, each of the cell shelves having a plurality of cells arranged in an X-Y plane. The plurality of cell shelves are located in at least one of the plurality of frames, at least one accessor having a picker portion, and a pl

A library unit including a plurality of frames and a plurality of cell shelves, each of the cell shelves having a plurality of cells arranged in an X-Y plane. The plurality of cell shelves are located in at least one of the plurality of frames, at least one accessor having a picker portion, and a plurality of first reference flags, each of which having substantially the same X-axis coordinate are provided with each of the frames with a spacing in the Y-axis direction. According to the library unit, the plurality of first reference flags are detected by a sensor attached to the picker portion, and a relative inclination angle of the accessor with respect to the Y axis in the X-Y plane is calculated from a difference in position in the X-axis direction of plurality of reference flags in order to obtain a correction value in the X-axis direction for each cell.

대표청구항 ▼

[ We claim:] [1.] A library unit comprising:a plurality of frames;a plurality of cell shelves, each of said cell shelves comprising a plurality of cells arranged in an X-Y plane, said plurality of cell shelves located in at least one of said plurality of frames;at least one accessor having a picker

[ We claim:] [1.] A library unit comprising:a plurality of frames;a plurality of cell shelves, each of said cell shelves comprising a plurality of cells arranged in an X-Y plane, said plurality of cell shelves located in at least one of said plurality of frames;at least one accessor having a picker portion;a plurality of first reference flags, each of which having substantially the same X axis coordinate, are provided with each of said frames with a spacing in the Y-axis direction;a sensor attached to said picker portion so as to detect said plurality of first reference flags; andmeans for calculating a relative inclination angle of said accessor with respect to the Y axis in the X-Y plane from a difference in position in the X axis direction of said plurality of first reference flags in order to obtain a correction value in the X-axis direction for each cell.