JPS6239289U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of this invention, and FIG. 2 is a block diagram showing a conventional magnetic tape drive device. In the figure, 1 is a cover, 2 is a drive mechanism, 3 is a control circuit, 6 is a control signal line, 7 is a timer, and 8 is a detection signal line. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of claims for utility model registration] (1) A cover that covers the part where the magnetic tape is attached and detached;
A drive mechanism that opens and closes the cover, a timer device that detects when a certain period of time has elapsed while the cover remains open, and a detection signal from the timer device that causes the drive mechanism to close the cover. A magnetic tape drive device equipped with a control circuit that outputs a control signal for operation. (2) the timer device includes a first timer that generates a first detection signal when a first time period elapses while the cover remains open; and a timer device that starts timing based on the first detection signal; 2nd time from this timing start point
and a second timer that generates a second detection signal when the time period elapses, and the second detection signal is output to a control circuit. The magnetic tape drive device described in (1).