JPH03100982A - Cartridge magnetic tape unit - Google Patents

Abstract

PURPOSE:To make a cartridge magnetic tape unit compact and low-priced by arranging a file reel motor, machine reel motor, threading motor, buffer mechanism, paired air bearings and tape tension mechanism in one base. CONSTITUTION:A file reel motor 5 winds one end in respective magnetic tapes 1 and 2 and respectively rotationally drives file reels 16 and 17 to be housed in cartridges 3 and 4. Machine reels 6 and 7 wind the other end in the respective tapes 1 and 2 respectively corresponding to the file reels 16 and 17. A machine reel motor 8 rotationally drives the machine reels 6 and 7. Threading arm mechanisms 18 and 19 to be driven by a threading motor 20 spread over the magnetic tapes between the file reels 16 and 17 and the machine reels 6 and 7 corresponding to these file reels. A buffer mechanism 9 travels the magnetic tapes and executes the buffering operation of the tape tension when the tapes are started / stopped. An air bearing 14 reduces the wearing of the tapes 1 and 2. The tension of the tapes 1 and 2 is detected by a tape tension detecting mechanism 15. The above mentioned constituting parts are arranged in one base 21.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cartridge magnetic tape device, and more particularly to a technique for sharing mechanical parts when constructing a device that mounts two cartridges at the same time.

(Prior Art) As is well known, magnetic tape devices have characteristics such as low price per bit, ability to store large amounts of data by exchanging magnetic tapes, and easy data exchange with other systems. For some reason, it is widely used as an external storage device for main files such as magnetic disks.

(Problems to be Solved by the Invention) Conventionally, cartridge magnetic tape devices have often been devices in which one cartridge is mounted.
As the capacity of magnetic disks increases, there are cases where one cartridge is insufficient.

Therefore, it is desired to develop an apparatus that can mount two cartridges at the same time. At this time, if two cartridges are simply mounted, the same parts will be required for the two cartridges, resulting in an increase in the size and cost of the structure.

The present invention has been made in response to such demands, and its purpose is to provide a cartridge magnetic tape device that can mount two cartridges at the same time without increasing the size of the structure or increasing the price. It is in.

(Means for Solving the Problems) In order to achieve the above object, a cartridge magnetic tape device of the present invention has the following configuration.

That is, the cartridge magnetic tape device of the present invention is a cartridge magnetic tape device of a type in which two cartridges are mounted; one file reel motor that rotates each of the file reels stored in the file reel; and one file reel motor that rotates each of the two machine reels around which the other end of the magnetic tape is wound, corresponding to each of the two file reels. one machine reel motor that drives; one threading motor that drives two threading arm mechanisms that stretch magnetic tape between a file reel and a corresponding machine reel; The location is 2 above.
one buffer mechanism that acts as a buffer for the tape tension when two magnetic tapes run and start and stop; one anti-air bearing that supplies compressed air to reduce wear on the magnetic tape on both sides of the magnetic head; ; one tape tension mechanism that detects the tension of each magnetic tape stretched between a file reel and a corresponding machine reel; and one base on which each of the above-mentioned components is arranged; It is characterized by:

(Function) Next, the function of the cartridge magnetic tape device of the present invention constructed as described above will be explained.

The cartridge magnetic tape device of the present invention in which two cartridges are mounted has one file reel motor, one machine reel motor, one threading motor, one buffer mechanism, and one The anti-air bearings and one tape tensioning mechanism are arranged on one base.

In short, we decided to share the components, so
It is possible to provide a cartridge magnetic tape device in which two cartridges can be mounted simultaneously without increasing the size of the structure or increasing the price.

(Implementation example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a cartridge magnetic tape device according to an embodiment of the present invention. In FIG. 1, this device 22 has a front and side surfaces both formed in a rectangular shape, and both short sides of the side surface are divided into two. One base 21, which is a rectangular board, is disposed at a position where the base 21 is a rectangular board.

On the plate surface of the base 21, one file reel motor 5.1 tape tension detection mechanism 15.1 machine reel motor 8.
A threading motor 20 and a pair of air bearings 14 are each provided.

That is, file reel motor 5, machine reel motor 8
The main body of the threading motor 20 is fixedly held on the base 21 so that the rotating shaft protruding from the main body on both sides is perpendicular to the plate surface of the base 21 and extends from the front and back surfaces toward both long sides of the device side. ing. Further, the rod-shaped tape tension detector t*15 is also fixedly held at its center portion on the base 21 so that both ends thereof extend toward both long sides of the side surface of the device. And a pair of air bearings 14
are arranged symmetrically, one on one plate surface of the base 21 and the other on the other plate surface of the base 21, in order to supply compressed air to corresponding ones of the two magnetic heads 12 (13).

Corresponding file reels 16 (1?) housed in the cartridges 3 (4) are attached to the tips of both rotating shafts of the file reel motor 5. One end of the magnetic tape 1 (2) is wound around the file reel 16 (1?), and the other end of the magnetic tape 1 (2) is fed out from the cartridge 3 (4) by the rotation of both rotating shafts of the file reel motor 5. The film is then wound onto the cartridge 3 (4).

Magnetic tape 1 (
2) to the magnetic head 12 (13) is provided with one buffer mechanism 9 and a tape cleaner 10 (11) for each magnetic tape 1 (2). That is, although not shown, the buffer mechanism 9 has one vacuum-filled space, and the two magnetic tapes 1 and 2 run through this space.

Next, a machine reel 6 (7) is supported in the middle of both rotating shafts of the machine reel motor 8, and one end of a threading arm mechanism 1g (+9) is engaged with the tip of both rotating shafts. ing. The other end of each of the threading arm mechanisms 1g (19) engages with corresponding tips of both rotating shafts of the threading motor 20.

Magnetic tape 1 (2) after passing through magnetic head 12 (13)
The threading arm mechanism 18 (19) connects the magnetic tape 1 (2) to the file reel 16 (17') and the machine reel 6 (7) via the corresponding tip of the tape tension detection mechanism 15. (7) The tape tension at this time is detected by the tape tension detection mechanism 15, which operates a tensioning mechanism between the two.

In short, two cartridges 3. When implementing the same four devices at the same time, the so-called drives were shared, simplifying the structure and lowering the cost.

In this way, the magnetic tape 1 (2) of the cartridge 3 (4) mounted in the cartridge magnetic tape device 22 is transferred to the buffer mechanism 9 by the threading arm mechanism 18 (19).
, tape cleaner 10 (11), air bearing 14 (
14), magnetic head 12 (13), tape tension detector [
15 and is stretched to the machine reel 6 (7). The magnetic tape 1 (2) is driven to run by a file reel motor 5 and a machine reel motor 8 at an appropriate distance from the magnetic head 12 (13).
2) Information is a magnetic head! 2 (13).

(Effects of the Invention) As explained above, according to the cartridge magnetic tape device of the present invention, since the constituent parts are made common,
This has the effect of providing a cartridge magnetic tape device in which two cartridges can be mounted simultaneously without increasing the size of the structure or increasing the price.

[Brief explanation of drawings]

FIG. 1 shows the external appearance of a cartridge magnetic tape device according to an embodiment of the present invention, FIG. 1(a) is a front view, and FIG. 1(b) is a front view.
is a side view. 1.2...magnetic tape, 3.4...
Cartridge, 5...File reel motor, 6,7...Machine reel, 8...
...Machine reel motor, 9...Buffer IR structure,
10,11...Tape cleaner, 12.13
...Magnetic head, 14...Air bearing, 15...Tape tension detection mechanism, 16
．． 17...File reel, ■8.19...
...Threading arm mechanism, 20...
・Threading motor, 21...Base,
22...Cartridge magnetic tape device.

Claims (1)

[Claims] A cartridge magnetic tape device of a type that mounts two cartridges; this cartridge magnetic tape device rotates each of the file reels, each of which is wound with one end of the magnetic tape and stored in each of the two cartridges. one file reel motor; one machine reel motor that rotates each of two machine reels around which the other end of the magnetic tape is wound in correspondence with each of the two file reels; A threading motor drives two threading arm mechanisms that stretch magnetic tape between the machine reel and the corresponding machine reel; one buffer mechanism that buffers the tape tension when stopped; one pair of air bearings to which compressed air is supplied to reduce wear on the magnetic tape on both sides of the magnetic head; and a file reel and a corresponding one. one tape tensioning mechanism that detects the tension of each magnetic tape stretched between the machine reel; one base on which each of the component parts is arranged;
A cartridge magnetic tape device comprising: