JP2004342178A - Winding method of tape and tape drive - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent irregular winding when a tape is wound on a tape reel. <P>SOLUTION: This tape winding method comprises a measuring step for measuring the variations in the width direction of a tape 12, a judging step for judging whether the measured result in the measuring step exceeds the prescribed value or not, a tape feeding step for stopping the winding of the tape 12 and feeding out the tape 12 in the feeding direction for a prescribed distance when it is judged that the measured result exceeds the prescribed value in the judging step, and a tape winding step for winding the tape 12 fed out by the prescribed distance in the feeding direction, again on the tape reel 9. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tape winding method and a tape drive.
[0002]
[Prior art]
In the tape drive, the tape is pulled out from the tape cartridge, and recording / reproducing of the tape is performed. When the tape cartridge is ejected from the tape drive, the delivered tape is rewound. (Patent Document 1)
[0003]
[Patent Literature]
US Pat. No. 6,034,839 specification
[Problems to be solved by the invention]
However, when the winding of the tape is disturbed during winding of the tape, the portion that protrudes during transportation or dropping often undergoes permanent deformation such as tape folding or wrinkling, which causes problems such as data reading failure.
[0005]
Accordingly, an object of the present invention is to provide a tape winding method and a tape drive that do not cause winding disturbance when the tape is wound around a tape reel.
[0006]
[Means for Solving the Problems]
The tape winding method according to claim 1 is a method of winding a tape on a tape reel of the tape cartridge when the tape cartridge is ejected from a tape drive, wherein the magnetic tape is disposed in the vicinity of the tape reel. A measurement step for measuring fluctuations in the width direction of the tape wound on the tape, a determination step for determining whether or not a measurement result exceeds a predetermined value in the measurement step, and the determination result includes: When it is determined that the tape exceeds the predetermined value, the tape is stopped to be wound, and the tape is sent out for a predetermined distance in the feeding direction. And a tape winding step of rewinding the tape reel.
[0007]
According to the tape winding method described in claim 1, when the tape is wound around the tape reel when the tape cartridge is ejected from the tape drive, the variation in the width direction of the tape is measured. When the value is exceeded, the winding of the tape on the tape reel is stopped, the tape is fed out in the feeding direction by a predetermined distance, and wound around the tape reel again, thereby preventing the tape from being disturbed.
[0008]
Further, when the tape is wound around the tape reel again, it is preferable that the winding speed of the tape is made slower than the speed before stopping the winding of the tape (Claim 2). This is because if the tape winding speed is slowed down, the possibility of tape turbulence occurring is reduced, and therefore it is preferable to prevent tape turbulence.
[0009]
The tape drive according to claim 3 is a tape drive including a device reel for winding a tape wound around a tape reel of a tape cartridge, and the tape reel is arranged in a tape feeding direction or a tape winding direction. A tape reel driving device for rotationally driving, an apparatus reel driving device for rotationally driving the device reel in a tape feeding direction or a tape winding direction, and a controller for controlling operations of the tape reel driving device and the device reel driving device; A sensor for measuring fluctuations in the width direction of the tape in the vicinity of the tape reel, and determining whether the measurement result of the sensor exceeds a predetermined value, and the measurement result exceeds the predetermined value If it is determined, the controller stops the winding of the tape and feeds the tape in a feeding direction for a predetermined distance. After, characterized by comprising a judgment unit for commanding the tape to take again wound on the tape reel.
[0010]
According to the tape drive of the third aspect, when winding the tape on the tape reel when the tape cartridge is ejected from the tape drive, the variation in the tape width direction is measured, and the measurement result exceeds a predetermined value. In such a case, it is possible to prevent the tape from being disturbed by stopping the winding of the tape, feeding the tape in a feeding direction for a predetermined distance, and winding it again on the tape reel.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a tape winding method and a tape drive according to the present invention will be described below with reference to the drawings. In the present embodiment, a magnetic tape drive is assumed as the tape drive.
[0012]
The tape drive according to the present embodiment will be described. FIG. 1 is a schematic configuration diagram of a single reel type magnetic tape drive. As shown in FIG. 1, a single reel type magnetic tape cartridge 10 is inserted into the single reel type magnetic tape drive 1. The single reel type magnetic tape cartridge 10 includes a tape reel 11 around which a magnetic tape 12 is wound. The tape reel 11 feeds the magnetic tape 12 to the apparatus reel 9 by rotating in the forward direction (A direction), and the magnetic tape 12 delivered from the apparatus reel 9 by rotating in the reverse direction (B direction). Wind up.
[0013]
A single reel type magnetic tape drive 1 includes a tape reel driving device 2, an apparatus reel driving device 3, a control unit 4, a determination unit 5, a sensor 6, a device reel 9, and a magnetic head 7 for performing magnetic recording / reproducing on the magnetic tape 12. And a plurality of guides 8 for guiding the magnetic tape 12. The apparatus reel 9 winds the magnetic tape 12 sent from the tape reel 11 by rotating in the forward direction (A direction), and rotates the magnetic tape 12 in the reverse direction (B direction) by rotating in the reverse direction (B direction). To send.
[0014]
The tape reel drive device 2 rotates the tape reel 11 in the forward direction and in the reverse direction based on a command from the control unit 4, and stops the rotating tape reel 11. The device reel driving device 3 rotates the device reel 9 in the forward direction and in the reverse direction based on a command from the control unit 4, and further stops the rotating device reel 9.
[0015]
The sensor 6 is disposed in the vicinity of the tape reel 11, continuously measures the position of the edge in the width direction of the magnetic tape 12, and outputs the position of the edge in the width direction to the determination unit 5. The sensor 6 may be any sensor that can measure the position of the edge in the width direction of the magnetic tape, and examples thereof include an LED light-shielding sensor.
[0016]
Based on the edge position of the magnetic tape 12 measured by the sensor 6, the determination unit 5 obtains the amount of fluctuation in the width direction of the magnetic tape 12 within a certain past time and determines whether it is within a predetermined value. If it is determined that the predetermined value has been exceeded, the control unit 4 stops rotating the tape reel 11 and the device reel 9 in the reverse direction, and moves the tape reel 11 and the device reel 9 in order for a predetermined time. Command to rotate in the direction and then rotate in the reverse direction. The predetermined value is determined by the relationship between the amount of fluctuation in the width direction of the magnetic tape and the winding shape of the magnetic tape, and includes, for example, an amplitude of 0.5 mm. Further, the value to be determined may not be the amount of change in the width direction of the magnetic tape 12 but the rate of change in position. Thus, the fluctuation of the magnetic tape referred to in the claims includes a fluctuation amount within a predetermined time and a change rate of the position.
[0017]
The control unit 4 rotates the tape reel 11 and the device reel 9 by driving the tape reel driving device 2 and the device reel driving device 3 based on an instruction from the determination unit 5, or the tape reel driving device 2 By stopping the apparatus reel driving device 3, the rotation of the tape reel 11 and the apparatus reel 9 is stopped.
[0018]
Next, a tape winding method performed using the tape drive 1 shown in FIG. 1 will be described with reference to the flowchart of FIG. FIG. 2 is a flowchart for explaining the tape winding operation.
[0019]
As shown in FIG. 2, first, in step S <b> 1, the width of the magnetic tape 12 fed from the device reel 9 and wound around the tape reel 11 by rotating the tape reel 11 and the device reel 9 in the opposite directions. The position of the edge in the direction is continuously measured by the sensor 6, and the position of the edge is output to the determination unit 5.
[0020]
Subsequently, in step S2, the amount of variation in the width direction of the magnetic tape 12 within a predetermined past time is obtained based on the edge position output from the sensor 6 by the determination unit 5, and it is determined whether or not it is within a predetermined value. To do. If it is determined in step S2 that the fluctuation amount exceeds the predetermined value (No), the process proceeds to step S3. If it is determined in step S2 that the fluctuation amount is within the predetermined value (Yes), the winding of the magnetic tape 12 onto the tape reel 11 is continued, and all the magnetic tape 12 is transferred to the tape reel 11. When it is wound up, the process ends.
[0021]
In step S <b> 3, the determination unit 5 outputs a command for stopping the driving of the tape reel driving device 2 and the device reel driving device 3 to the control unit 4. Upon receiving this command, the control unit 4 stops the tape reel drive device 2 to stop the rotation of the tape reel 11, stops the device reel drive device 3 and stops the rotation of the device reel 9.
[0022]
Subsequently, in step S4, the determination unit 5 causes the control unit 4 to drive the tape reel driving device 2 to rotate the tape reel 11 in the forward direction and drive the device reel driving device 3 to drive the device reel 9. Outputs a command to rotate forward. In response to this command, the control unit 4 rotates the tape reel 11 and the device reel 9 in the forward direction for a predetermined time so that when the magnetic tape 12 is sent from the tape reel 11 for a predetermined distance, the control unit 4 The driving device 2 and the device reel driving device 3 are stopped, and the rotation of the tape reel 11 and the device reel 9 is stopped.
Here, the predetermined distance may be a part of the magnetic tape 12 (for example, a part where the turbulence of the magnetic tape 12 has occurred). This is desirable because no disturbance occurs.
[0023]
In step S5, the determination unit 5 causes the control unit 4 to drive the tape reel drive device 2 to rotate the tape reel 11 in the reverse direction and drive the device reel drive device 3 to drive the device reel 9. Outputs a command to rotate in the reverse direction. Upon receiving this command, the control unit 4 drives the tape reel drive device 2 to rotate the tape reel 11 in the reverse direction, drives the device reel drive device 3 to rotate the device reel 9 in the reverse direction, and again. Then, the magnetic tape 12 is wound around the tape reel 11, and the process returns to step S1. If the tape winding speed is made slower than before the tape winding is stopped, the air required for the magnetic tape 12 is discharged better, so that winding disturbance is less likely to occur.
[0024]
As described above, the amplitude in the width direction of the magnetic tape wound on the tape reel is measured, and when the measurement result exceeds a predetermined value, it is assumed that the magnetic tape is disturbed. By rewinding the magnetic tape around the tape reel, it is possible to prevent the magnetic tape from being disturbed.
In addition, if the winding speed of the magnetic tape is slowed, the possibility of magnetic tape winding disturbance is reduced. Therefore, the winding speed of the tape can be reduced more efficiently than before stopping the winding of the tape. Disturbance can be prevented.
[0025]
In this embodiment, the magnetic tape is used as the tape, the single reel type magnetic tape cartridge is used as the tape cartridge, and the single reel type magnetic tape drive is used as the tape drive. The tape drive is not limited to these. For example, the tape cartridge may be a two-reel tape cartridge, and the tape drive may be a two-reel tape drive.
[0026]
【The invention's effect】
As described above, the tape winding method and the tape drive according to the present invention can prevent the tape from being disturbed.
Further, by making the tape winding speed slower than the speed before stopping the tape winding, it is possible to more efficiently prevent the tape from being disturbed.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a single reel type magnetic tape drive.
FIG. 2 is a flowchart for explaining a tape winding operation;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Single reel type magnetic tape drive 2 Tape reel drive device 3 Device reel drive device 4 Control part 5 Judgment part 6 Sensor 9 Apparatus reel 10 Magnetic tape cartridge 11 Tape reel 12 Magnetic tape A Forward direction B Reverse direction

Claims (3)

A method of winding a tape around a tape reel of the tape cartridge when the tape cartridge is ejected from the tape drive,
A measurement step of measuring a variation in the width direction of the tape wound around the tape reel in the vicinity of the tape reel;
In the measurement step, a determination step of determining whether the measurement result exceeds a predetermined value;
In the determination step, when it is determined that the measurement result exceeds the predetermined value, the tape feeding step of stopping winding of the tape and feeding the tape in a feeding direction by a predetermined distance;
A tape winding step of rewinding the tape that has been fed out in the feeding direction by the predetermined distance around the tape reel;
A tape winding method characterized by comprising: 2. The tape winding method according to claim 1, wherein in the tape winding step, the winding speed of the tape is made slower than a speed before the tape winding is stopped. A tape drive having a device reel for winding a tape wound on a tape reel of a tape cartridge,
A tape reel driving device for driving the tape reel to rotate in a tape feeding direction or a tape winding direction;
An apparatus reel driving device for rotating the apparatus reel in a tape feeding direction or a tape winding direction;
A controller for controlling the operation of the tape reel driving device and the device reel driving device;
A sensor for measuring fluctuations in the width direction of the tape in the vicinity of the tape reel;
It is determined whether the measurement result of the sensor exceeds a predetermined value, and when the measurement result is determined to exceed the predetermined value, the winding of the tape is stopped with respect to the control unit. A determination unit for instructing to rewind the tape on the tape reel after feeding the tape in a feeding direction for a predetermined distance;
A tape drive characterized by comprising:

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