Fujitsu Corporation

Katsufumi Ohnaka

Kiyotaka Tanaka

Takahiro Asahara

Noriaki Matsuzaki

Hiroshi Shimada

Yoshiyuki Hashimoto

Hidetomo Kamon

Naoya Yamamura

Miyuki Yokogawa

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.

Library unit for calculating inclination of an accessor to correct

The present invention provides a cartridge carrying system for performing carriage control so as to enable carriage of a cartridge even when a gap is made between arms and the cartridge. In particular, the cartridge carrying system includes: a cartridge holding mechanism having two arms, the cartridge holding mechanism grabbing a cartridge stored in a first predetermined position at one end of each of the two arms by turning the two arms around respective supporting points in directions opposed to each other; an arm turning mechanisms; a carrying mechanism for carrying the cartridge in such a manner that the cartridge is drawn into or from a space between the two arms; a carriage driving mechanism for driving the carrying mechanism; and a carriage completion monitoring mechanism for monitoring if the cartridge is carried to a second predetermined position, and the cartridge carrying system controlling so that the operation for carrying the cartridge to the second predetermined position is continued, when it is detected that the cartridge is not carried to the second predetermined position within a given time.

Cartridge carrying system and library system

Growing community of inventors

Hyogo, Japan

Katsufumi Ohnaka