JP2972582B2 - Magnetic tape unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a magnetic tape device, and more particularly to a magnetic tape device having an autoloader.

[0002]

2. Description of the Related Art A conventional magnetic tape device will be described with reference to the drawings.

FIG. 5 is a perspective view showing the structure of an example of a conventional magnetic tape device.

A conventional magnetic tape device has a rack 2 on the side.
1, a magazine 22 for storing 10 magnetic tape cartridges 2 and a pinion 23 meshing with a rack 21 on the side of the magazine 22. The vertical movement of the magazine 22 and the automatic mounting and dismounting of the magnetic tape cartridge 2 in the drive 20 are performed. When the magazine 22 is set from above the autoloader 24, the rack 21 and the pinion 23 mesh with each other, and after the magazine 22 is moved up and down and the magnetic tape cartridge 2 is recorded / reproduced,
The magazine 22 moves up and is ejected upward in the autoloader 24.

[0005]

In the above-mentioned conventional magnetic tape device, the magazine is set in the autoloader from the upper side of the autoloader. When the number of windings is increased from 16 to 25, the magazine is vertically long and heavy, and it is difficult for a person with a small body or a weak person to lift to a position higher than the autoloader and set the magazine.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic tape device which can easily set a magazine in which the number of windings of a magnetic tape cartridge is increased in an autoloader.

Therefore, (1) The magnetic tape device of the present invention comprises a magazine for accommodating a large number of magnetic tape cartridges, and an autoloader for automatically attaching and detaching the magnetic tape cartridge to and from a drive for recording and reproducing on the magnetic tape cartridge. It is characterized by being set. (2) The magnetic tape device of the present invention comprises: a magazine table for setting a magazine for accommodating a large number of magnetic tape cartridges below the autoloader; a motor for moving the magazine table up and down via a feed screw; and a magazine for elevating the magazine. A lift mechanism consisting of an anti-rotation shaft that prevents the table from rotating and a sensor that detects the vertical position of the magazine table, and the pinion on the autoloader side that engages with the magazine rack set from below the autoloader is lifted by this lift mechanism. And a one-way clutch that is free to rotate in the direction. (3) The magnetic tape device of the present invention has a magazine having a rack on the side surface and a positioning hole on the bottom surface for accommodating a large number of magnetic tape cartridges, and a rotation of a pinion and a magazine having a built-in one-way clutch that engages with the rack on the side surface of the magazine. , An autoloader for automatically loading and unloading a magnetic tape cartridge from a drive having rollers for preventing the magazine from moving up and down and performing recording and reproduction on a magnetic tape cartridge; a magazine table having positioning pins for positioning the magazine; A lift mechanism having a feed screw for raising and lowering, a motor for driving the feed screw, a rotation stop shaft for preventing rotation of the magazine base, and a sensor for detecting a vertical position, and a set switch for giving a command to start a vertical movement of the magazine base. It is characterized by being composed.

[0008]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing the configuration of an embodiment of the magnetic tape device of the present invention, FIG. 2 is a detailed view of the magazine of FIG. 1, FIG. 3 is a detailed view of the lift mechanism of FIG. 4A is a detailed view of the autoloader in FIG. 1, FIG. 4B is a cross-sectional view taken along the line AA in FIG. 4A, and FIG. 4C is a cross-sectional view taken along the line BB in FIG.

In FIG. 1, a magnetic tape cartridge 2
The magazine 3 in which the number of stored windings is increased has the rack 1 on the side surface and the positioning holes 4a and 4b on the bottom surface. The autoloader 9 includes a pinion 6 having a built-in one-way clutch 5 that engages with the rack 1 of the magazine 3, a rotation preventing roller 7 for preventing rotation and falling of the magazine 3, and falling preventing rollers 8 a and 8 b.
For automatically moving the magazine 3 up and down and for automatically attaching and detaching the magnetic tape cartridge 2 to and from the drive 20.

A magazine table 10 having positioning pins 11a and 11b for positioning the magazine 3 is installed below the autoloader 9, and is moved up and down by a lift mechanism 18. The lift mechanism 18 is connected to the magazine base 1 via a rotation stop shaft 14 and a feed screw 12 for preventing rotation of the magazine base 10.
It has a motor 13 for raising and lowering 0 and sensors 15 to 17 for detecting a stop position of the magazine base 10. The set switch 19 is a switch for giving a command to start a setting operation to the autoloader 9 for the magazine 3 on the magazine base 10.

Next, the operation will be described with reference to FIGS.

The magazine 3 is set with the positioning holes 4a and 4b aligned with the positioning pins 11a and 11b of the magazine stand 10 waiting at a position detected by the initial position sensor 15. When the set switch 19 is pressed, the motor 13 rotates, and the magazine 3 is completely supported by the rollers 7, 8a, 8b of the autoloader 9 via the feed screw 12,
In addition, the set sensor 16 detects a position where the magazine 3 is completely supported by engaging with a pinion 6 having a built-in one-way clutch 5 that is freely rotatable with respect to the upper direction of the rack 1 and the autoloader 9 of the magazine 3. Magazine stand 10
Stop rising. Here, the setting operation of the magazine 3 with respect to the autoloader 9 is completed. Thereafter, the magazine table 10 is moved to the position of the eject sensor 17 (the eject position).
Descend and wait. Magazine 3 is autoloader 10
And the drive 20 performs recording and reproduction on the magnetic tape cartridge 2. When the recording / reproduction is completed, the magazine table 10 at the eject position puts the magazine 3 ejected downward by the autoloader 9 and descends to the position of the initial position sensor 15. In addition, pinion 6
Is locked downward by the one-way clutch 5, so that the conventional magazine 22 and the new magazine 3 can be set from above the autoloader 9.

[0014]

As described above, according to the magnetic tape device of the present invention, since the magazine 3 is set from below the autoloader 6, there is no need to lift the magazine 3 above the autoloader 6. There is an effect that the number of winding volumes of the tape cartridge 2 increases, and the vertically long and heavy magazine 3 can be easily set.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of an embodiment of a magnetic tape device of the present invention.

FIG. 2 is a detailed view of the magazine of FIG. 1;

FIG. 3 is a detailed view of the lift mechanism of FIG. 1;

FIG. 4 is a detailed view of the autoloader of FIG. 1;

FIG. 5 is a perspective view showing a configuration of an example of a conventional magnetic tape device.

[Explanation of symbols]

 Reference Signs List 1 rack 2 magnetic tape cartridge 3 magazine 4a, 4b positioning hole 5 one-way clutch 6 pinion 7 rotation stop roller 8a, 8b fall prevention roller 9 autoloader 10 magazine stand 11a, 11b positioning pin 12 feed screw 13 motor 14 rotation stop shaft 15 initial position Sensor 16 Set sensor 17 Eject sensor 18 Lift mechanism 19 Set switch 20 Drive 21 Rack 22 Magazine 23 Pinion 24 Autoloader

Claims (3)

(57) [Claims] 1. A magnetic tape device wherein a magazine accommodating a large number of magnetic tape cartridges is set from below to an autoloader for automatically attaching / detaching the magnetic tape cartridge to / from a drive for recording / reproducing on / from the magnetic tape cartridge. 2. A magazine base for setting a magazine for accommodating a large number of magnetic tape cartridges under an autoloader, a motor for raising and lowering the magazine base via a feed screw, and preventing rotation of the magazine base during the vertical movement. A lift mechanism comprising a rotation preventing shaft and a sensor for detecting the elevation position of the magazine table, and a pinion on the autoloader side which engages with a magazine rack set from the lower side of the autoloader by the lift mechanism, with respect to an upward direction. A magnetic tape device comprising: a one-way clutch that is freely rotatable. 3. A magazine having a rack on the side surface and a positioning hole on the bottom surface for accommodating a large number of magnetic tape cartridges, and a pinion and a roller for preventing rotation and fall of a pinion and a magazine having a one-way clutch engaged with the rack on the side surface of the magazine. An autoloader that automatically attaches and detaches the magnetic tape cartridge to and from a drive that raises and lowers the magazine and performs recording and reproduction on the magnetic tape cartridge, a magazine table that includes positioning pins that position the magazine, and a feeder that raises and lowers the magazine table It is composed of a lift mechanism having a screw, a motor for driving a feed screw, a rotation stop shaft for preventing rotation of the magazine base, and a sensor for detecting a vertical position, and a set switch for giving a command to start the vertical movement of the magazine base. A magnetic tape device characterized by the above-mentioned.