JP7306729B2 - MECHANISM, METHOD AND PROGRAM FOR CORRECTING MEDIUM INSERTION POSITION IN LIBRARY DEVICE - Google Patents

Description

The present invention relates to a medium insertion position correcting mechanism, a correcting method, and a correcting program in a library device capable of efficiently inserting a medium.

In this type of library device, a command issued from the host computer transports a medium stored in a slot to an arbitrary slot or drive, and then reports the execution result of the command to the host computer.
In this library apparatus, when the accessor is used to move the medium to the target slot, when the accessor is stopped in front of the slot, the firmware locks the movement motor to prevent the accessor from slightly moving. It is designed to perform an insertion operation.
At this time, in the library device, if the medium is inserted while the stop position coordinates are deviated, the medium is inserted obliquely toward the opening of the slot. After that, the medium collides with the inner wall of the slot, creating frictional resistance and failing the medium insertion operation.
Then, in the library device, recovery processing is performed based on the firmware until the medium insertion operation succeeds.

The following Patent Literatures 1 and 2 disclose a library device that performs such recovery processing.
For example, in the library device of Patent Document 1, a first access means for taking out a medium from a slot or inserting it into the slot at an initial stop position, and if the operation by the first access means fails, the initial stop position is changed. and a second access means for removing media from or inserting media into the slot at one or more locations on the periphery until removal or insertion is successful.
Further, in this library apparatus, when the second access means succeeds in taking out or inserting at any position around the initial stop position, the initial stop position updating means updates the initial stop position based on the successful position. Further prepare.

In the library device of Patent Document 1, when recovery is performed many times, there is a large difference between the initial stop position determined at the start of recovery processing and the accessor stop position coordinates at which media can be inserted normally. occurs, and the total operation time also increases according to the number of recoveries until the medium insertion operation succeeds.

On the other hand, in the library device of Japanese Patent Application Laid-Open No. 2002-200002, a technique is disclosed in which, when the accessor is moved to the front of the slot of the library, the accessor is shifted from the reference position by a pre-stored movement step amount.
In such a library device, when the retry of the medium is successful at the spaced position n steps away from the reference position, n steps indicating the distance between the reference position and the spaced position are stored, and the accessor is stored in the library from the next time onwards. , the position is shifted by n steps from the reference position.

JP-A-2005-209279 JP-A-08-180547

By the way, the library devices disclosed in Patent Documents 1 and 2 store position information when the medium is successfully inserted into the slot after one or more retry operations and initial position information when the medium is first inserted. Then, the medium insertion position for the next and subsequent times is corrected based on the difference between the two.
However, in such a library device, even if the retry operation is performed several times, the insertion posture of the medium may not be improved.

The present invention has been made in view of the above circumstances, and is a difference between the position information when the medium is successfully inserted into the slot after the retry operation and the initial position information when the medium is first inserted. Therefore, a medium insertion position correcting mechanism, a correction method, and a correction program are provided that can optimize the insertion posture of a medium in a library device that corrects the medium insertion position from the next time onwards.

In order to solve the above problems, the present invention proposes the following means.
A mechanism for correcting a medium insertion position according to a first aspect of the present invention has an accessor for moving a medium placed on a medium transport tray with respect to a slot of a magazine or a drive containing a plurality of media by means of a motor for movement, A library device in which a medium on a medium transport tray is inserted into or removed from the slot while the medium is gripped by a picker of the accessor, wherein when the medium insertion by the accessor fails, the stop position of the picker is changed to the medium insertion means for releasing the fixed state of the accessor by unlocking the motor for movement of the accessor in a range where the accessor motor can be unlocked, and continuing the insertion of the medium; and medium insertion by the medium insertion means. medium insertion detection means for determining whether or not the medium insertion has been successful; and calculation of a deviation amount from an initial position of the accessor stopped at a position where the medium can be inserted when the medium insertion detection means has determined that the medium insertion has been successful. and medium insertion position correcting means for correcting and storing the next accessor stop position based on the amount of deviation.

A method for correcting a medium insertion position according to a second aspect of the present invention includes an accessor for moving a medium placed on a medium transport tray with a moving motor with respect to a slot of a magazine or a drive that stores a plurality of media, A library device in which a medium on a medium transport tray is inserted into or removed from the slot while the medium is gripped by a picker of the accessor, wherein when the medium insertion by the accessor fails, the stop position of the picker is changed to the A medium insertion step of releasing the accessor from a fixed state by unlocking the movement motor within a range where the movement motor lock of the accessor can be unlocked and continuing the insertion of the medium; a medium insertion detection step of determining whether or not the medium insertion has been successful; and when the medium insertion detection step determines that the medium insertion has been successful, the amount of deviation from the initial position of the accessor stopped at a position where the medium can be inserted is calculated. and a medium insertion position correcting step of correcting and storing the next accessor stop position based on the amount of deviation.

A program for correcting a medium insertion position according to a third aspect of the present invention has an accessor that moves a medium placed on a medium transport tray with a motor for movement with respect to a slot of a magazine or a drive that stores a plurality of media, A library device in which a medium on a medium transport tray is inserted into or removed from the slot while the medium is gripped by a picker of the accessor, wherein when the medium insertion by the accessor fails, the stop position of the picker is changed to the A medium insertion step of releasing the accessor from a fixed state by unlocking the movement motor within a range where the movement motor lock of the accessor can be unlocked and continuing the insertion of the medium; a medium insertion detection step of determining whether or not the medium insertion has been successful; and when the medium insertion detection step determines that the medium insertion has been successful, the amount of deviation from the initial position of the accessor stopped at a position where the medium can be inserted is calculated. and a medium insertion position correcting step of correcting and storing the next accessor stop position based on the amount of deviation.

In the present invention, it is possible to correct the stop position of the accessor on and after the next time based on the amount of deviation calculated and stored by the medium insertion position correcting means. The efficiency of the medium insertion operation can be improved by reducing the chances of stopping the operation during the medium insertion retry as much as possible.

1 is a schematic configuration diagram showing the minimum configuration of a library device according to the present invention; FIG. 1 is an external view of a library device according to an embodiment of the present invention; FIG. (A) is a plan view of the library device shown in FIG. 2, and (B) is a side view of the library device shown in FIG. (A). FIG. 10 is an explanatory diagram relating to the correction value, in which (A) is a plan view when the medium collides with the inner wall in the slot, and (B) is a plan view when the medium continues to be inserted after unlocking the moving motor; It is a diagram. 8A is a plan view showing the amount of forward movement of the picker when the medium is successfully inserted into the slot, and a plan view showing the amount of forward movement of the picker when the medium cannot be inserted into the slot. FIG. FIG. 10A is a plan view of a rotary encoder, FIG. 1B is a side view of FIG. 1A, and FIG. is. FIG. 4 is a diagram showing pulse signals output from a photointerrupter of a rotary encoder, where (A) is a pulse signal when the gear rotates to the right, and (B) is a diagram of the pulse signal when the gear rotates to the left. 5 is a flowchart showing recovery processing when a medium is inserted, which is set in firmware of a device control unit; FIG. 10A is a plan view of a magazine, and FIG. 1B is a side view of FIG. 1A, showing a modification of the library device according to the embodiment of the present invention;

A minimum configuration of the library device 100 according to the present invention will be described with reference to FIG.
The library device 100 is composed of a magazine 2 installed in a casing 1, a drive 3, an accessor 4, and a device controller 5. FIG.

The magazine 2 accommodates a plurality of media M through slots 2A.
The drive 3 records and reproduces data on the medium M inserted through the slot 3A.

The accessor 4 includes a transport path 4A along the front-rear direction A of the magazine 2, a medium transport tray 4B movable on the transport path 4A, a moving motor 4C for moving the medium transport tray 4B on the transport path 4A, It also has a picker 4D for taking media M in and out of the slot 2A of the magazine 2 or the slot 3A of the drive 3 in the arrow B direction.
In the accessor 4, the medium M is transported between the magazine 2 and the drive 3 via the medium transport tray 4B on the transport path 4A by driving the moving motor 4C and operating the picker 4D. .

The device control unit 5 is for controlling the motor 4C for moving the accessor or the drive mechanism (not shown) of the picker 4D according to instructions from the operator, etc., and is a medium incorporated in the firmware, which is the control program. The operation is controlled through the insertion means 6, the medium insertion detection means 7 and the medium insertion position correction means 8. FIG.

When the medium insertion by the accessor 4 fails, the medium insertion means 6 unlocks the accessor moving motor 4C in a range where the lock of the accessor moving motor 4C can be unlocked so that the accessor 4 is fixed. to continue inserting the medium.
The medium insertion detection means 7 determines whether or not the medium insertion by the medium insertion means 6 has succeeded.
When the medium insertion detection means 7 determines that the medium insertion has been successful, the medium insertion position correction means 8 calculates the amount of deviation from the initial position of the accessor 4 stopped at the position where the medium can be inserted. The next accessor stop position is corrected and stored.

According to the library apparatus 100 of the present invention configured as described above, when the media insertion means 6 fails to insert the medium by the accessor 4, the stop position of the picker 4D can be unlocked from the movement motor 4C. In the range, the fixed state of the accessor 4 is released, and the medium insertion is continued.
After that, the medium insertion detection means 7 determines whether or not the medium insertion by the medium insertion means 6 has succeeded.
After that, when the medium insertion detection means 7 determines that the medium insertion has been successful, the medium insertion position correcting means 8 calculates the amount of deviation from the initial position of the accessor 4 that has moved to the stop position coordinates where the medium can be inserted. Based on the amount of deviation, the next accessor stop position can be corrected and stored.
As a result, the library device 100 of the present invention can correct the accessor stop position from the next time on based on the amount of deviation calculated and stored by the medium insertion position correcting means 8, so that failures in medium insertion by the accessor 4 can be greatly reduced. be able to.
As a result, in the library device 100 of the present invention, it is possible to reduce the chances of stopping the operation at the next medium insertion retry as much as possible, and improve the efficiency of the medium insertion operation.

(embodiment)
A library device 101 according to an embodiment of the present invention will be described with reference to FIGS. 2 to 9. FIG.
As shown in the perspective view of FIG. 2 and the plan view and side view of FIGS. A device control unit 15 is a main component.
In addition, in the library device 101 according to the embodiment, as the medium M, for example, a magnetic tape type recording medium for computers called Linear Tape-Open (LTO) is used.

The magazine 12 has a slot 12A through which media M are taken in and taken out, and a plurality of media M are accommodated in an internal medium accommodating portion 12B through the slots 12A. Note that the magazine 12 of this example is provided with five medium storage sections 12B, which are partitioned by walls 12C.
The drive 13 has a slot 13A into and out of which the medium M is inserted, and records and reproduces data on the medium M accommodated in the medium containing section 13B through the slot 13A. Further, the medium containing portion 13B is partitioned by a wall portion 13C.
The slot 12A of the magazine 12 and the slot 13A of the drive 13 are arranged in a row along the front-rear direction A. As shown in FIG.

The accessor 14 includes a transport path 14A along the front-rear direction A of the magazine 12, a medium transport tray 14B movable on the transport path 14A, a moving motor 14C for moving the medium transport tray 14B on the transport path 14A, and a picker 14D for taking the medium M in and out of the magazine slot 12A or the drive slot 13A in the arrow B1-B2 direction.
In such an accessor 14, by driving the movement motor 14C and operating the picker 14D, the medium transport tray 14B is disposed between the magazine 12 and the slots 12A and 13A of the drive 13 on the transport path 14A. A medium M is transported.

The device control unit 15 is for controlling the motor 14C for moving the accessor or the driving mechanism (not shown) of the picker 14D according to instructions from the operator. The operation is controlled through means 16, medium insertion detection means 17, and medium insertion position correction means 18 (see FIG. 3B).

In the medium inserting means 16, when the medium insertion by the accessor 14 fails, the stop position of the picker 14D is within a range where the lock of the accessor moving motor 14C can be unlocked. to continue inserting the medium.
The medium insertion detection means 17 determines whether or not the medium insertion by the medium insertion means 16 has succeeded.
Furthermore, when the medium insertion detection means 17 determines that the medium insertion has been successful, the medium insertion position correction means 18 calculates the amount of deviation from the initial position of the accessor 14 stopped at the position where the medium can be inserted, and calculates the amount of deviation from the initial position. Based on this, the next accessor stop position is corrected and stored.
The details of the operation of the device control unit 15 will be described later with reference to the following explanatory diagrams of FIGS. 4 to 7 and the flowchart of FIG.

First, in the operation of moving the medium M by the firmware-based accessor 14, the device control unit 15 takes out the medium M from the slot 13A of the drive 13 of the transfer source or the slot 12A of the magazine 12, and then moves the medium M to the drive 13 of the transfer destination. The medium is inserted into the slot 13A or the slot 12A of the magazine 12.
In such a device control unit 15, when inserting a medium into the drive slot 13A or the magazine slot 12A, medium insertion may fail depending on the situation.

Motor locking/unlocking during the medium insertion operation will be described with reference to FIGS. 4 and 5. FIG.
Normally, when a medium is inserted into the slot 12A of the magazine 12 or the slot 13A of the drive 13 by forward movement of the picker 14D built in the accessor 14, the device control unit 15 locks the accessor moving motor 14C (see FIG. 4). (A)), and the picker 14D is moved forward.
As a result, in the accessor 14, the medium transport tray 14B is fixed in the direction of arrow A, and in this fixed state, the picker 14D advances the medium M in the medium transport tray 14B in the direction of arrow B1.

At this time, the stop position coordinates of the accessor 14 are deviated in the device control unit 15, the medium M collides with the walls 12C and 13C of the magazine slot 12A or the drive slot 13A, and the forward movement of the picker 14D stops due to frictional resistance. When this is done (see FIG. 4A), it is determined whether or not the advance amount of the picker 14D in the direction of the arrow B1 is within the lock release range of the accessor moving motor 14C.

This judgment method will be described separately for the case where the medium insertion is successful and the case where the medium insertion is unsuccessful using the plan views of FIGS.
FIG. 5A is a diagram showing the amount of forward movement (indicated by symbol m1) of the picker 14D when the media are successfully inserted into the slots 12A and 13A.
FIG. 5B shows the amount of forward movement of the picker 14D ( FIG. 10 is a diagram representing the reference numeral m2).

In these figures, the symbol m1 can be said to be the picker movement amount in the best case, and the symbol m2 can be said to be the picker movement amount in the worst case.
Therefore, the device control unit 15 determines whether or not the inserted medium M collides with the slot wall if the amount of movement of the picker 14D at that time is larger than the amount of advance m2 and smaller than the amount of advance m1. It can be determined by whether the value is within the range (m0).
As a result, when the amount of movement of the picker 14D is within this range (m0), the device control unit 15 determines that unlocking of the accessor movement motor 14C is possible.
The amount of movement of the picker 14D shown here is measured by a sensor or the like provided in the picker movement mechanism (not shown).

Next, referring to FIGS. 4A and 4B, motor lock/unlock during medium insertion operation according to the present invention incorporating the determination method of FIG. 5 will be described. Note that the following operations are executed by the device control unit 15 .

(Picker stops working: see Fig. 4(A))
In the device control unit 15, the wall of the magazine slot 12A or the drive slot 13A relative to the medium M when the picker 14D pushes the medium M due to the deviation of the stop position coordinates of the medium transport tray 14B caused by the motor 14C for movement in the accessor 14. When a collision with 12C and 13C is caused, the forward movement of the picker 14D is stopped.

(Motor unlock determination: see FIGS. 4A, 5A, and 5B)
If the advance amount of the picker 14D is within the unlockable range of the accessor moving motor 14C, the device control unit 15 starts measuring the correction value.

(Motor unlock determination: see FIG. 4(A))
After setting the initially set accessor stop value coordinates X1 as the origin for starting recovery processing, the device control unit 15 unlocks the accessor moving motor 14C and causes the picker 14D to move forward in the arrow B1 direction. continue.
In FIG. 4, the x coordinate is the coordinate along the moving direction A of the medium transport tray 14B, and the y coordinate is the coordinate along the moving direction B of the picker 14D.

(Picker forward movement: see Fig. 4(B))
By moving the picker 14D forward in the direction of arrow B1, the device control unit 15 advances the medium M pushed by the picker 14D into the slots 12A and 13A while rotating. The transport tray 14B is moved to the coordinate (x coordinate) in front of the openings of the slots 12A and 13A.
In other words, the point of contact with the picker 14D is the point of force, and the point of collision between the walls 12C and 13C of the slots 12A and 13A is the fulcrum. will be automatically moved to the coordinate (x coordinate) in front of the frontage.

(Stopping the forward movement of the picker: see Fig. 4(B))
When the medium M is normally stored in the slots 12A and 13A by the forward movement of the picker 14D, the device control unit 15 ends the measurement of the correction value, and the final stop position coordinates of the accessor 14 at this time are determined as follows: Assume that the accessor stop position coordinate is X2 at which the media can be inserted into the slots 12A and 13A.
Further, the device control unit 15 calculates a correction value from the rotation amount of the accessor moving motor 14C generated in the correction value measurement section in the direction of the arrow A from the coordinates X1 to X2, and completes the recovery process. The correction value at this time is calculated using a two-phase rotary encoder 20 shown in FIG.

As shown in FIGS. 6A and 6B, the rotary encoder 20 is mounted on one rotating shaft 21 of the accessor moving motor 14C, and includes a gear 22, an encoder disk 23, and at least two photointerrupters 24. , 25.
The gear 22 incorporates an encoder disk 23 for transmitting or shielding infrared rays from the photointerrupters 24 and 25 .
Detected pieces 26 of a pair of photointerrupters 24 and 25 are provided on the encoder disk 23 along the direction of rotation of the gear 22 (the direction of arrow C) at regular intervals.
The photointerrupters 24 and 25 are arranged along the moving path of the piece 26 to be detected, and as shown in FIG. (Low) signal is output.

In such a rotary encoder 20, when the accessor moving motor 14C rotates, the gear 22 also rotates. It is output in pulses (see FIGS. 7A and 7B).
These photointerrupters 24 and 25 have a two-phase structure in which two photointerrupters 24 and 25 are mounted side by side with an interval along the movement path of the piece 26 to be detected. can be determined (direction of arrow C).
In other words, in the rotary encoder 20, the accessor moving motor 14C can move the accessor by separately referring to the pulse output when the accessor moving motor 14C rotates clockwise and the pulse output when the accessor moving motor 14C rotates counterclockwise. The direction of rotation of the motor 14C is detected.
As a result, in the rotary encoder 20, as shown in FIGS. 6A and 6B, the accessor stop position coordinates are set to either the left (minus) or right (plus) direction toward the openings of the slots 12A and 13A. It is possible to determine whether it has moved in the direction of

By monitoring the pulse outputs from the photointerrupters 24 and 25, the firmware of the device control unit 15 can grasp the stop position coordinates of the medium transport tray 14B of the accessor 14. FIG.
A predetermined number of pulses is used as a constant correction value used in recovery processing. That is, since the device control unit 15 calculates the stop position coordinates of the accessor 14 in units of pulses, the number of pulse outputs measured in the section from the coordinate X1 to the coordinate X2 in FIG. symbol ΔX) (see FIG. 4B).
Then, the device control unit 15 stores the correction value (symbol ΔX) calculated in this recovery process, and completes the medium transport. The correction value (symbol .DELTA.X) obtained at this time is a variable value unlike the conventional multiple value of a constant correction amount, so that the correction accuracy is improved.
As a result, in the library device 101, the number of times the accessor 14 is moved during recovery processing is reduced, and the recovery processing time is shortened.

Next, with reference to the flowchart of FIG. 8, recovery processing at the time of inserting the medium set in the firmware of the device control unit 15 will be described for each step S. FIG.

(Step S101) to (Step S102)
First, the medium transport tray 14B of the accessor 14 is moved to the stop position coordinates in front of the openings of the slots 12A and 13A (step S101). This stop position is a stop position to which the correction value is reflected.
Then, the accessor moving motor 14C is locked and fixed so that the accessor 14 does not slightly move until the subsequent medium insertion operation is completed (step S102).

(Step S103)
The picker 14D of the accessor 14 is moved in the direction of the arrow B1, and the medium M is inserted by the picker 14D.

(Step S104)
Based on the amount of movement of the picker 14D, it is determined whether or not the medium insertion operation has been completed. If YES, the correction value (ΔX) is saved in step S205, which will be described later, and the medium insertion process is terminated. Moreover, in the case of NO, it progresses to following step S105.

(Step S105)
Based on the amount of movement of the picker 14D, it is determined whether or not the medium M has collided with the walls 12C and 13C of the slots 12A and 13A. If YES, proceed to step S106, and if NO, proceed to step S206 described later. .
Whether or not the medium M collides with the walls 12C and 13C of the slots 12A and 13A is determined by the determination method shown in FIG.

(Step S206) to (Step S207)
If it is determined in step S105 that the medium M has not collided with the walls 12C and 13C of the slots 12A and 13A, the medium M is pulled into the picker 14D (step S206), and the correction value (ΔX) is changed to a constant correction value ( (n: arbitrarily set) is added (step S207), and is moved to the stop position coordinates in front of the frontage of the slots 12A and 13A of the transfer destination where the correction value is reflected (step S101), and the recovery process is performed.

(Step S106) to (Step S108)
If it is determined in step S105 that the wall portions 12C and 13C of the slots 12A and 13A are collided with, the pulse number measurement by the rotary encoder 20 is started (step S106), and the accessor moving motor 14C is locked. Release (step S107), and continue inserting the medium (step S108). The locked state is released by, for example, turning off the motor current to the moving motor 14C of the accessor 14. FIG.
Then, in step S108, as shown in FIG. 4, while the picker 14D is moving forward, the medium M pushed by the picker 14D is rotated and advanced into the slot. Move to the coordinates in front of the frontage.

(Step S201)
Based on the amount of movement of the picker 14D, it is determined whether or not the medium insertion operation has been completed.

(Step S202) to (Step S205)
If it is determined in step S201 that the medium has been successfully inserted, the pulse number measurement by the rotary encoder 20 is terminated (step S202), and the pulse number detected during the measurement period is calculated (step S203). After that, the calculated number of pulses is added to the correction value (ΔX) (step S204), and after the correction value is stored (step S205), the medium insertion processing shown in this flowchart is terminated.

In the flowchart shown in FIG. 8, the medium inserting means 16 in the device control section 15 is configured by steps S101 to S108. Further, the medium insertion detection means 17 in the apparatus control section 15 is configured by step S201. Further, the medium insertion position correcting means 18 in the device control section 15 is configured by steps S202 to S207.

According to the library apparatus 101 of this embodiment configured as described above, when the media insertion unit 16 fails to insert the medium by the accessor 14 (YES in step S105), the stop position of the picker 14D is shifted to the moving motor 14C. The fixed state of the accessor 14 is released within the unlockable range, and the medium insertion is continued (steps S106 to S108).
After that, the medium insertion detecting means 17 determines whether or not the medium insertion by the medium inserting means 16 has succeeded (step S201).

After that, when the medium insertion detecting means 17 determines that the medium has been successfully inserted, the medium insertion position correcting means 18 calculates the amount of deviation from the initial position of the accessor 14 that has moved to the stop position coordinates where the medium can be inserted. The next accessor stop position can be corrected and stored based on the amount of deviation (steps S202 to S205).
As a result, in the library device 101 of the present embodiment, the accessor stop position can be corrected from the next time onward based on the amount of deviation calculated and stored by the medium insertion position correcting means 18, so failures in inserting the medium by the accessor 14 can be greatly reduced. can be made
As a result, in the library apparatus 101 of this embodiment, it is possible to reduce the chances of stopping the operation at the next medium insertion retry as much as possible, and improve the efficiency of the medium insertion operation.

That is, in the library apparatus 101 of the present embodiment, the total number of movements of the accessor 14 that operates during the recovery process performed when media insertion into the slots 12A and 13A fails is reduced, and the total recovery operation time is shortened. can be achieved. Further, in the library device 101 of this embodiment, the correction value obtained after the recovery operation is successful is a variable value, so the correction accuracy is high.
Further, in the library device 101 of this embodiment, effects can be obtained only by changing the accessor control processing by the firmware stored in the device control unit 15 .

(Other embodiments)
In the library apparatus 101 of this embodiment, the higher the position of the medium in the magazine 12 or the drive 13 at the time of failure to insert the medium, that is, the larger the movement amount of the forward movement by the picker 14D, the higher the success rate of the recovery process. The shape of the entrances of slots 12A and 13A of magazine 12 or drive 13 is preferably as shown in FIG.
That is, the entrance shape of the slots 12A and 13A of the magazine 12 or drive 13 shown in FIG. A tapered surface 30 that is inclined with respect to the B1 direction) may be used to facilitate forward movement of the medium M by the picker 14D.

As described above, the embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and design changes and the like are included within the scope of the present invention.

The present invention relates to a medium insertion position correcting mechanism and correcting method in a library device capable of efficiently inserting a medium.

REFERENCE SIGNS LIST 1 casing 2 magazine 3 drive 4 accessor 4A transport path 4B medium transport tray 4C movement motor 4D picker 5 device control section 6 medium insertion means 7 medium insertion detection means 8 medium insertion position correction means 11 bottom chassis 12 magazine 12A slot 12B medium storage Section 12C Wall 13 Drive 13A Slot 13B Medium containing section 13C Wall 14 Accessor 14A Transport path 14B Medium transport tray 14C Movement motor 14D Picker 15 Device control section 16 Medium insertion means 17 Medium insertion detection means 18 Medium insertion position correction means 20 Rotary Encoder 21 Rotating Shaft 22 Gear 23 Encoder Disk 24 Photointerrupter 25 Photointerrupter 26 Piece to be Detected 30 Tapered Surface 100 Library Device 101 Library Device

Claims (8)

The accessor has an accessor for moving the medium placed on the medium transport tray with a motor for movement with respect to the slot of the magazine or drive storing a plurality of media, and the medium is picked up by the picker of the accessor, and the medium is picked up by the picker of the accessor. A library device to be inserted into or removed from a slot,
When the accessor fails to insert the medium, the accessor is unlocked in a range where the stop position of the picker is within a range where the motor for moving the accessor can be unlocked, thereby releasing the fixed state of the accessor and continuing the medium insertion. a medium insertion means for
medium insertion detection means for determining whether or not the medium insertion by the medium insertion means has succeeded;
When the medium insertion detection means determines that the medium has been successfully inserted, the amount of deviation from the initial position of the accessor stopped at the position where the medium can be inserted is calculated, and the next accessor stop position is corrected based on the amount of deviation. medium insertion position correcting means for storing a medium insertion position correcting mechanism in a library device. 2. A correcting mechanism for a medium insertion position in a library apparatus according to claim 1, wherein unlocking of said motor for movement is performed by turning off a motor current of said motor for movement of said accessor. 3. The medium insertion detection means detects the amount of movement of the accessor when the accessor movement motor is unlocked based on an output signal from a rotary encoder installed in the accessor movement motor. 3. A mechanism for correcting a medium insertion position in the library device according to any one of 1 or 2. At least two sets of the rotary encoders are provided at intervals along the rotation direction of one rotary shaft of the movement motor, and the movement direction of the accessor is obtained from the phase difference between these pulses. 4. A mechanism for correcting a medium insertion position in a library device according to claim 3. The medium inserting means determines whether or not the stop position of the accessor for inserting the medium into the slot is within a range in which the motor for moving the accessor can be unlocked, based on the advance amount of the picker of the accessor. A mechanism for correcting a medium insertion position in a library device according to any one of claims 1 to 4. The medium insertion detecting means determines whether or not the medium insertion by the medium inserting means has succeeded based on the forward movement of a picker of an accessor that inserts the medium into the slot. A mechanism for correcting a medium insertion position in the library device according to any one of claims 1 to 3. The accessor has an accessor for moving the medium placed on the medium transport tray with a motor for movement with respect to the slot of the magazine or drive storing a plurality of media, and the medium is picked up by the picker of the accessor, and the medium is picked up by the picker of the accessor. A library device to be inserted into or removed from a slot,
When the medium insertion by the accessor fails, the fixed state of the accessor is released by unlocking the motor for movement of the accessor when the stop position of the picker is within a range where the lock for the motor for movement of the accessor can be unlocked. a media insertion stage that continues the insertion;
a medium insertion detection step of determining whether the medium insertion by the medium insertion step is successful;
When it is determined that the medium insertion has been successfully inserted in the medium insertion detection step, the amount of deviation from the initial position of the accessor stopped at the position where the medium can be inserted is calculated, and the next accessor stop position is corrected based on the amount of deviation. and a medium insertion position correcting step for storing a medium insertion position in a library device. It has an accessor that moves the medium placed on the medium transport tray by means of a moving motor with respect to the slots of the magazine or the drive that stores a plurality of media, and the medium is placed on the medium transport tray in a state in which the medium is gripped by the picker of the accessor. A library device for inserting or removing a medium from the slot,
When the medium insertion by the accessor fails, the fixed state of the accessor is released by unlocking the motor for movement of the accessor when the stop position of the picker is within a range where the lock for the motor for movement of the accessor can be unlocked. a media insertion stage that continues the insertion;
a medium insertion detection step of determining whether the medium insertion by the medium insertion step is successful;
When it is determined that the medium insertion has been successfully inserted in the medium insertion detection step, the amount of deviation from the initial position of the accessor stopped at the position where the medium can be inserted is calculated, and the next accessor stop position is corrected based on the amount of deviation. and a medium insertion position correction step for storing a medium insertion position correction program in a library device.

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