| 摘要 |
PURPOSE:To quickly fetch a file without causing damage, and also to make a retrieving space unnecessary, by retrieving the file by a selecting device, and thus rotating a reel, and positioning a retrieved file at the turning end position of the selecting device. CONSTITUTION:When a selecting device operates and its read part reads a code signal of a desired file, the read signal is inputted to a data selector 45a from an output device 44, and a coincidence signal of data of both output devices 43, 44 is inputted to a comparation-arithmetic circuit 45. By an output from the circuit 45, an electric operating body M2 is operated, a retrieving level 24 advances, and retrieval of the desired file is executed. Subsequently, an output of the circuit 45 is inputted to a timer T1, and after a constant interval of time, it is inputted to a relay R1, a positive pulse signal is inputted to an operating body M1, an interlocking body advances and it is engaged with a fitting body. Therefore, the reel is turned, and when the selecting device is stopped, the retrieved desired file is shifted automatically to the vicinity of the end position. |
