JP2013045476A - Optical disk storage magazine and disk changer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin type magazine which stores a plurality of optical disks, and a high-speed, compact and large capacity, and highly reliable disk changer which takes out the optical disks from the magazine and performs recording and reproduction.SOLUTION: An optical disk storage magazine is provided with a magazine 2 which is detachable form a device body and stores an optical disk 5 in a storage part 4, and an arm 11 and a roller 12 which come into contact with the side face of the optical disk 5 in the storage part 4 of the magazine 2. The arm 11 rotates around a rotating shaft 15 to discharge the optical disk 5 from the magazine 2 or to store the optical disk 5 in the magazine 2. When recording/reproduction is performed, a trigger rod 24 is pushed in by a push rod 36 to clockwise rotate a trigger 16 and the arm 11. At this time, torque by a torsion spring 17 is added to the arm 11 to push out the optical disk 5. The optical disk 5 is conveyed to a drive 60 by disk conveying rollers 50 and 51.

Description

  The present invention relates to a magazine for storing a plurality of optical discs that can be attached to and detached from an apparatus main body, and a disc changer for taking out an optical disc from the magazine and recording or reproducing data.

There is Patent Document 1 as a magazine storing a plurality of such optical discs and a disc changer for recording and reproducing the same. Patent Document 1 discloses a disc changer comprising a stocker that holds the outer peripheral portion of a disc and stores a plurality of discs, and disc transport means that sandwiches and transports the outer peripheral surface of the disc from the stocker to a recording / reproducing apparatus.
Moreover, there is Patent Document 2 as a disk case for storing an optical disk. In Patent Document 2, a movable holder provided with a rotation shaft in the middle of both ends of an arc shape and an arc-shaped fixed holder are arranged in contact with and opposed to an optical disk, and swing the arc-shaped movable holder. Thus, a configuration in which an optical disk placed on an arc-shaped movable holder is taken in and out of the case is disclosed.

Japanese Patent Laid-Open No. 08-87810 WO06 / 051978

  Since the disk changer described in Patent Document 1 holds and takes out the outer peripheral surface of one disk in the stocker, it is necessary to widen the interval between adjacent disks. Therefore, in the stocker, there is a problem that it is not possible to store the disks at high density by narrowing the interval between adjacent disks.

  In the disk case described in Patent Document 2, since the optical disk is placed on the arc portion of the arc-shaped movable holder and the movable holder is rotated, the optical disk moves while drawing an arc. Therefore, when trying to configure a disk changer that automatically moves the movable holder with an external mechanism and transports the optical disk to the recording / reproducing apparatus, in the disk case, the width of the transport path on which the optical disk moves becomes wide and cannot be reduced in size. was there. Further, since the fixed holder presses the outer peripheral side surface of the optical disk and the optical disk cannot be taken out unless the center of the optical disk passes through the end of the fixed holder, the distance between the disk case and the recording / reproducing device is set to the radius of the optical disk. Need to be longer. It is necessary to lengthen one side of the disk case by an amount corresponding to this distance, and there is a problem that the disk case cannot be reduced in size.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. A magazine that can store a disk at a high density by narrowing the interval between adjacent disks, and an optical disk is taken out from the magazine and data is recorded or reproduced for access. Aims to provide a small, high-capacity disk changer with high speed.

To achieve the above objective,
2. The optical disk storage magazine according to claim 1, wherein the optical disk storage magazine is an optical disk storage magazine that can be attached to and detached from an apparatus main body, the optical disk is stored in the optical disk storage magazine, and an arm having a substantially arc-shaped side facing the outer peripheral side surface of the optical disk; A rotating shaft provided between both ends of the arm and a torsion spring for applying a rotational force to the arm are provided, and a rotational force is applied to the arm from the outside, and the rotational force of the torsion spring is switched in the reverse direction so that the arm is The arm is rotated by the rotational force of the torsion spring, and one end or the other end of the arm contacts the outer peripheral surface of the optical disk depending on the rotation direction of the arm, and the optical disk is ejected from the optical disk storage magazine. It is possible to move in a direction and an insertion direction. Thereby, there is an effect that the disk can be taken in and out at high speed with a small external force. In addition, there is an effect that the disk does not move during transportation.

According to a second aspect of the present invention, a plurality of the optical disk storage magazines according to the first aspect are integrated to store a plurality of the optical disks. As a result, the storage interval of the disks can be narrowed, and the disks can be stored with high density, which is effective in reducing the thickness of the magazine.
According to a third aspect of the present invention, rollers are provided at both ends of the arm according to the first and second aspects, and are in contact with an outer peripheral side surface of the optical disc. As a result, since the disk is not rotated, there is an effect of not generating abrasion powder that damages the disk.
According to a fourth aspect of the present invention, there is provided a guide for guiding the optical disk parallel to a direction in which the optical disk moves, facing the outer peripheral side surface of the optical disk according to the first to third aspects. As a result, there is an effect that the disk can be moved linearly from the magazine and can be taken in and out at high speed.
6. The contact hole according to claim 5, wherein a through hole communicating with the outside is provided at a position facing the outer peripheral side surface of the optical disk of the optical disk storage magazine according to claim 1, and a contact that contacts the optical disk is inserted into the through hole. The presence or absence of the optical disc is detected from a change in the penetration length of the child. Thereby, there is an effect that the presence or absence of a disk in the magazine can be detected. In addition, there is an effect that a malfunction can be detected. In addition, there is an effect of eliminating erroneous operations.

  7. The optical disk storage magazine according to claim 6, wherein the optical disk storage magazine is an optical disk storage magazine that can be attached to and detached from the apparatus body. The optical disk storage magazine stores an optical disk, and the optical disk storage magazine has a side that faces the outer peripheral side surface of the optical disk. An arc-shaped arm, a rotation shaft provided between both ends of the arm, and a torsion spring for applying a rotational force to the arm are provided, and the disk changer is located at a position facing the optical disk entrance / exit of the optical disk storage magazine. An optical disk recording / reproducing apparatus, a disk conveying roller comprising a driving roller and a driven roller for conveying the optical disk between the optical disk storage magazine and the recording / reproducing apparatus, and a rotational force applied to the arm by moving in the direction of the optical disk storage magazine. A push rod for providing the optical disc At the time of recording / reproduction, the push rod is moved to apply a rotational force to the arm, the rotational force of the torsion spring is switched in the reverse direction, the arm is rotated by the rotational force of the torsion spring, and one end of the arm is rotated. The optical disc is ejected from the optical disc storage magazine by bringing the optical disc into contact with the outer peripheral side surface of the optical disc, and the ejected optical disc is conveyed to the recording / reproducing device by the disc conveyance roller, and recorded and reproduced. The optical disk ejected from the recording / reproducing apparatus is transported to the optical disk storage magazine by the disk transport roller, the outer peripheral side surface of the optical disk is brought into contact with the end of the arm, and the arm is rotated by the pushing force of the disk transport roller. Applying a force to switch the rotational force of the torsion spring in the reverse direction, Serial rotated by the rotational force of the torsion spring, characterized in that said optical disk into contact with the other end of the arm to the outer peripheral side surface of the optical disk is configured to push useless on the optical disk storing magazine. As a result, there is an effect in saving labor, speeding up, and downsizing and thinning of disk replacement.

8. The optical disk storage magazine according to claim 6, wherein the optical disk storage magazine stores a plurality of the optical disk storage magazines, and the disk transport roller, the recording / reproducing device, and the push rod are disposed at positions facing the optical disk entrance / exit of the optical disk storage magazine. A moving table is provided that moves in the direction perpendicular to the plane of the transport path of the optical disk. Accordingly, there is an effect that all the optical disks stored in the optical disk storage magazine can be recorded / reproduced by the recording / reproducing apparatus. It is also effective in increasing the storage capacity.
9. The optical disk storage magazine storing a plurality of the optical disk storage magazines according to claim 6, a plurality of the disk transport rollers and a plurality of the recording / reproducing devices at positions facing the optical disk entrance / exit of the optical disk storage magazine, A moving table is provided on which a plurality of push rods are mounted and moved in a direction perpendicular to the plane of the optical disk transport path. This is effective in speeding up recording / reproducing by a plurality of operations of the recording / reproducing apparatus. In addition, the RAID is effective in improving data reliability.

9. The optical disk storage magazine according to claim 8, wherein the optical disk storage interval of the optical disk storage magazine is Mp, and the disk transport roller, the push rod, and the recording / reproducing apparatus are disposed at an interval Dp that is an integral multiple of Mp. A plurality of the optical discs are conveyed from the optical disc storage magazine to the recording / reproducing apparatus each time and recorded / reproduced, and a plurality of the optical discs are returned from the recording / reproducing apparatus to the optical disc accommodating magazine at a time. . As a result, the disk replacement time can be shortened. Further, since the moving distance for alignment between the disc and the recording / reproducing apparatus can be shortened, there is an effect that the size can be reduced.
A tenth aspect of the present invention is characterized in that rollers are provided at both ends of the arm according to the sixth to ninth aspects so as to be in contact with the outer peripheral side surface of the optical disc. As a result, since the disk is not rotated, there is an effect of not generating abrasion powder that damages the disk.

11. A guide according to claim 11, wherein a guide for guiding the optical disc is provided parallel to a direction in which the optical disc moves, facing the outer peripheral side surface of the optical disc according to claims 6 to 10. As a result, there is an effect that the disk can be moved linearly from the magazine and can be taken in and out at high speed.
13. The contact hole according to claim 12, wherein a through hole communicating with the outside is provided at a position facing the outer peripheral side surface of the optical disk of the optical disk storage magazine according to claim 6 to 11, and a contact that contacts the optical disk is inserted into the through hole. The presence or absence of the optical disc is detected from a change in the penetration length of the child. Thereby, there is an effect that the presence or absence of a disk in the magazine can be detected. In addition, there is an effect that a malfunction can be detected. In addition, there is an effect of eliminating erroneous operations.

14. A pressing roller having a roller that moves in a direction perpendicular to the optical disk transport direction and that is larger than the diameter of the disk transport roller is provided on the rotating shaft of one of the disk transport rollers according to claim 6. The pushing roller is retracted from the optical disc conveyance path, and when the optical disc passes through the disc carrying roller, the pushing roller is moved in the direction of the optical disc to bring the pushing roller into contact with the optical disc. The optical disc is pushed into the recording / reproducing apparatus and the optical disc storage magazine. As a result, the pressing force between the driven roller and the recording surface can be reduced, so that the recording surface can be prevented from being damaged.
15. The drive roller according to claim 13, wherein the driven roller of the disk transport roller is omitted, the push roller is provided on the rotation shaft of the drive roller, the optical disk is transported on the drive roller, and the optical disk passes through the drive roller. At that time, the push roller is moved in the direction of the optical disc, and the push roller is brought into contact with the optical disc to push the optical disc into the recording / reproducing apparatus and the optical disc storage magazine. As a result, the pressing force between the drive roller and the recording surface can be reduced, so that the recording surface can be prevented from being damaged.

  According to the present invention, an optical disk can be stored in the magazine at a high density, and further, it is possible to reduce the time for transporting the optical disk to the disk changer.

FIG. 3 shows an external view of a disk changer 1 and a magazine 2 in Embodiment 1. The top view which looked at the magazine 2 of FIG. 1 from the arrow A direction is shown. The top view of the state which ejected the optical disk 5 partially from the magazine 2 of FIG. 2 is shown. The side view of the disk changer 1 and the magazine 2 in Example 2 is shown. FIG. 6 is a plan view of a disk transport roller and its periphery in Embodiment 3. FIG. 6 shows a side view of the disk transport roller of FIG. 5. FIG. 6 shows another side view of the disk transport roller of FIG. 5. The top view of the magazine 2 which has the disk storage detection sensor 102 in Example 4 is shown. FIG. 10 shows another plan view of the magazine 2 having the disk storage detection sensor 102 according to the fourth embodiment. The top view in the insertion or discharge | emission state of the optical disk 5 in the drive 60 of FIG. 1 is shown. The top view in the recording / reproducing state of the optical disk 5 in the drive 60 of FIG. 1 is shown. The block diagram in the control system of the disk changer 1 of FIG. 1 is shown. The timing chart of the operation | movement in the disc changer 1 of FIG. 1 is shown.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 to FIG. 3 and FIG. 10 to FIG. 13 show an embodiment of a magazine for storing a plurality of optical discs in the embodiment of the present invention, and a high-speed access and large-capacity disc changer for taking out an optical disc from the magazine for recording and reproduction. It explains using.

First, the configuration and operation of the disk changer 1 will be described with reference to FIGS. 1 to 3, 12, and 13.
FIG. 1 is an external view of a disk changer 1 and a magazine 2 according to the first embodiment. However, FIG. 1 shows only one of the plurality of stored optical disks 5 and shows a state in which the optical disk is partially ejected outside the magazine 2. Here, different symbols are attached to the disk changer 1 and the magazine 2, but the magazine 2 is detachable from the disk changer 1, so both may be collectively referred to as a disk changer.

  The disk changer 1 includes a magazine 2 in which a plurality of optical disks 5 are stored, an arm 11 for loading / unloading the optical disks 5 provided in the magazine 2, a trigger rod 24 for exciting rotational force on the arms 11, and an optical disk from the magazine 2. Push rods 36a to 36d for pushing the trigger rod 24 when taking out 5, push rod drive motors 35a to 35d for moving the push rods 36a to 36d, and a drive 60a for recording / reproducing the optical disk 5 taken out from the magazine 2 To 60d, and the drive roller 50a to 50d and the driven roller of the disk transport roller that is arranged between the magazine 2 and the drives 60a to 60d and transports the optical disk 5 to the drives 60a to 60d or transports the drives 60a to 60d to the magazine 2 51a to 51d and magazine And a light transmission type first disk passage detection sensor 106 provided between the disk conveyance roller and a light transmission type second disk passage detection sensor 107 provided between the disk conveyance roller and the drives 60a to 60d, The disk position detection sensor 108 for detecting the position of the optical disk 5 stored in the magazine 2, the drives 60a to 60d, the push rods 36a to 36d, the push rod drive motors 35a to 35d, and the drive rollers 50a to 50d of the disk transport rollers. And a follower roller 51a to 51d, a first disk passage detection sensor 106, a second disk passage detection sensor 107, and a disk position detection sensor 108, and a movable table 104 that moves in the vertical direction. The optical disk 5 has a clamp hole 6 for fixing to the rotating part.

  The magazine 2 is configured to be detachable from the disk changer 1. The magazine 2 has a plurality of (for example, eight) storage units 4a to 4h for storing the optical disc 5, and optical discs 5a to 5h (represented by the optical disc 5 in FIG. 1) are stored in the respective storage units 4a to 4h. ing. Each storage section 4a to 4h is provided with an arm 11 for taking the optical disk 5 in and out of the magazine 2. Rollers 12 a and 12 b are provided at both ends of the arm 11 to contact the side surface of the optical disk 5. The arm 11 swings about the rotation shaft 15 as the center of rotation. A torsion spring (torsion spring) 17 is attached to the arm 11 and applies a rotational force to the arm 11. The arm 11 is provided with a trigger 16 and is in contact with the trigger rod 24.

  When the push rods 36 a to 36 d are moved in the direction of the trigger rod 24 and the trigger rod 24 and the trigger 16 are pushed in, the rotational force is excited in the arm 11. As a result, the arm 11 and the roller 12 a are rotated in the direction of the entrance / exit 23 by the spring force of the torsion spring 17, and the optical disk 5 is ejected from the magazine 2. When the optical disk 5 is stored in the magazine 2, the arm 11 is excited by rotating the optical disk 5 in the direction of the magazine 2. As a result, the arm 11 and the roller 12 b rotate in the storage direction by the spring force of the torsion spring 17 and push the optical disk 5 into the magazine 2.

FIG. 12 is a block diagram of the control system of the disk changer 1 of FIG. 1, in which the upper control unit 100, the control unit 101 of the changer 1, the magazine 2, the disk transport rollers 50 and 51, the push rod 36, the drive 60, and the moving table. 104, a conveyance roller driving motor 105 for driving the disk conveyance rollers 50 and 51, a push rod driving motor 35 for driving the push rod 36, a moving table driving motor 109 for driving the moving table 104, a disk storage detection sensor 102, a first The disk passage detection sensor 106, the second disk passage detection sensor 107, the disk position detection sensor 108, the changer signal 110 that is a control signal exchanged between the host controller 100 and the controller 101, the host controller 100 and the drive 60. Control and data signals sent and received between One drive signal 111, indicating the control unit 101 each motor, a signal line 112 between the sensors. Note that components not described in the above description, such as the disk storage detection sensor 102, will be described in detail later.
FIG. 13 shows a timing chart of the operation in the disk changer 1 of FIG.

  In FIG. 1, when the optical disk 5 is taken out from the magazine 2 and the recording / reproducing operation 122 (referenced in FIG. 13) is performed by the drive 60a, the moving table 104 shown in FIG. 12 is driven by the moving table drive shown in FIGS. It is moved by the motor 109 and a drive positioning operation 120 is performed to position the drive 60 a at a position facing the target optical disk 5 of the magazine 2 using the disk position detection sensor 108. Hereinafter, this positioning operation is referred to as drive side movement. The disk passing positions of the drive rollers 50a to 50d and the driven rollers 55a to 51d of the disk transport roller and the entrance / exit 61 of the drive 60 are arranged on a straight line. It is also possible to move a moving table (not shown) on which the magazine 2 is mounted to position the target optical disk 5 and the drive 60a at a position facing each other. Hereinafter, this positioning operation is referred to as magazine side movement. Also, a plurality of magazines 2 can be arranged in the vertical direction. As a result, the storage capacity can be increased and the magazine 2 can be sequentially switched and used, so that there is an effect of seamless recording and reproduction.

  Next, when performing the disk feeding operation 121, the push rod 36 a is moved in the direction of the trigger rod 24, and the trigger rod 24 and the trigger 16 are pushed in, so that the rotational force is excited in the arm 11. As a result, the arm 11 and the roller 12 a are rotated in the direction of the entrance / exit 23 by the spring force of the torsion spring 17, and the optical disk 5 is pushed out from the magazine 2. The optical disk 5 pushed out from the magazine 2 and the disk transport rollers 50a and 51a are bitten and transported, and taken into the drive 60a through the inlet / outlet 61 of the drive 60a, and recording / reproduction is performed. With respect to the rotation of the disc transport rollers 50a to 50d and 51a to 51d, as shown in FIG. 13, the transport roller drive motor 105 is rotated when the optical discs 5a to 5h start to pass through the first disc passage detection sensor 106. By controlling the conveyance roller drive motor 105 to stop when the passage of the second disk passage detection sensor 107 is completed, wear of the optical disks 5a to 5h and the disk conveyance rollers 50a to 50d and 51a to 51d is reduced. There is an effect that can be done.

  Next, in the case of the disk storing operation 123 for returning the optical disk 5 from the drive 60 a to the magazine 2, the optical disk 5 ejected from the drive 60 a is bitten by the disk transport rollers 50 a and 51 a and transported and inserted into the magazine 2. The side surface of the optical disk 5 inserted in the magazine 2 comes into contact with the roller 12a of the arm 11 and pushes the arm 11 to excite the rotational force on the arm 11. As a result, the arm 11 and the roller 12 b rotate in the storage direction by the spring force of the torsion spring 17 and push the optical disk 5 into the magazine 2. With respect to the rotation of the disc transport rollers 50a to 50d and 51a to 51d, as shown in FIG. 13, the transport roller drive motor 105 is rotated when the optical disc 5 starts to pass through the second disc passage detection sensor 107, and the first By controlling so as to stop when the passage of the disk passage detection sensor 106 is finished, there is an effect of reducing wear of the optical disk 5 and the disk transport rollers 50a to 50d and 51a to 51d.

  The disk changer 1 includes a magazine 2 that stores a plurality of optical disks 5, a plurality of disk transport rollers 50 and 51, a plurality of push rods 36, and a plurality of drives 60. The disk changer 1 stores a plurality of optical disks 5. The magazine 2, one disk transport roller 50, 51, one push rod 36, and one drive 60 may be used. Further, it may be configured by a magazine 2 storing one optical disk 5, one disk transport roller 50, 51, one push rod 36 and one drive 60.

Next, the configuration of the magazine 2 of this embodiment will be described with reference to FIGS.
FIG. 2 is a plan view of one of the storage portions 4a to 4h of the optical disk 5 in the magazine 2 of FIG. FIG. 2 shows a state where the optical disk 5 is stored in the magazine 2.
FIG. 3 is a plan view showing a state in which the optical disc 5 is partially ejected from the magazine 2 of FIG.

In FIG. 2 and FIG. 3, description of components having the same reference numerals as in FIG. 1 may be omitted. The magazine 2 in FIG. 2 includes a base plate 3, a stepped portion 8 for fitting a cover (not shown) provided on both sides of the base plate 3, a stepped portion 9 for storing the optical disk 5 provided on the base plate 3, The guides 10a and 10b of the step portion 9 for guiding the insertion and removal of the optical disk 5 from the magazine 2 and the operation of pushing the optical disk 5 out of the magazine 2 and the operation of storing it in the magazine 2 are provided on the opposite side of the optical disk 5 of the base plate 3. The arm 11 to be performed, rollers 12a and 12b provided at both ends of the arm 11 and in contact with the side surfaces of the optical disk 5, rotation shafts 13a and 13b of the rollers 12a and 12b provided at both ends of the arm 11, and the arm 11 A bearing 15 serving as a rotation center of the arm 11, a rotation shaft 14 of the bearing 15 provided on the base plate 3, and a trigger provided on the arm 11 and in contact with the trigger rod 24. 6, a torsion spring 17 for applying a rotational force to the arm 11, a hole 18 provided in the arm 11 for inserting one end of the torsion spring 17, and a hole 19 provided in the base plate 3 for inserting the other end of the torsion spring 17. Link grooves 20, 21 provided on the base plate 3 for guiding the rollers 12 a, 12 b, a trigger rod 24 provided on the base plate 3 and rotated by pushing the trigger 16, and a notch for inserting the trigger 16 of the arm 11 It comprises a part 25 and a spring 26 for pushing back the trigger rod 24 in the direction of the entrance / exit 23.
A magazine 2 shown in FIG. 1 is constructed in which a plurality of magazines having such a configuration are stacked to store a plurality of optical disks 5. In the magazine 2 shown in FIG. 1, the two outer magazines can be provided with covers on both sides of the base plate 3, and the inner magazine can be provided with a cover only on one side. This has the effect of reducing the overall thickness of the magazine 2.

  The operation of ejecting the optical disk 5 from the magazine 2 will be described. As shown in FIG. 2, when the trigger rod 24 is pushed by the push rod 36 (FIG. 1), the trigger 16 rotates counterclockwise. Next, as shown in FIG. 3, the arm 11 rotates counterclockwise, and the roller 12 a moves along the link groove 20 to push the optical disk 5 toward the entrance / exit 23. On the other hand, the roller 12 b moves along the link groove 21 and moves to a position where it does not contact the optical disk 5. At this time, when the retaining hole 18 of the torsion spring 17 of the arm 11 moves in the direction of the entrance / exit 23 from the straight line connecting the rotating shaft 15 that is the rotation center of the arm 11 and the retaining hole 19 of the torsion spring 17, the torsion spring 17. The spring force of the arm 11 accelerates the rotation in the counterclockwise direction. As a result, the optical disk 5 is guided by the guides 10a and 10b and jumps out of the magazine 2 in a straight line. The trigger rod 24 is pushed back to the original position by the spring 26. Next, an operation for storing the optical disk 5 in the magazine 2 will be described. As shown in FIG. 3, when the optical disk 5 is pushed into the magazine 2, the optical disk 5 contacts the roller 12a and the arm 11 rotates in the clockwise direction. On the other hand, the roller 12 b moves along the link groove 21 and comes into contact with the optical disk 5. At this time, when the stop hole 18 of the torsion spring 17 of the arm 11 moves in a direction opposite to the entrance / exit 23 rather than a straight line connecting the rotation shaft 15 that is the rotation center of the arm 11 and the stop hole 19 of the torsion spring 17, The arm 11 is accelerated in the clockwise direction by the spring force of the torsion spring 17. As a result, the optical disk 5 is pushed into the magazine by the roller 12b. The optical disk 5 is guided by the guides 10a and 10b and moved linearly and stored in the magazine 2. The optical disk 5 can also be pressed in the storage direction by the spring force of the torsion spring 17 so that the optical disk 5 does not move when the magazine 2 is transported. In addition, a lid that can be opened and closed to close the entrance / exit 23 so that dust does not enter from the entrance / exit 23 of the disk can be provided.

Next, the configuration and operation of the drive 60 will be described with reference to FIGS.
FIG. 10 shows a plan view of the optical disc 5 in the drive 60 of FIG. 1 in the inserted or ejected state.
FIG. 11 is a plan view of the optical disc 5 in the recording / reproducing state in the drive 60 of FIG.
The drive 60 has a guide mechanism composed of parallel links and links 71, 76, 82 and 83 composed of links 62, 63 and 64 for mounting the optical disc 5 inserted from the entrance / exit 61 to the spindle motor 90, and a recording / reproduction mechanism. An optical mechanism 91 is provided. In the figure, black circles 65, 67, 72, 77, 82, 85 of the link mechanism indicate rotating shafts fixed to the housing. White circles 66 and 68 indicate connecting shafts.

  As shown in FIG. 10, the optical disk 5 inserted from the entrance / exit 61 is guided by the side wall of the link 62 of the parallel link and the groove roller 89 of the link 83, and is guided and moved in the direction of the spindle motor 90 through the clamp hole 6. The link 83 moves the drive shaft 88 along the link groove 87 and pushes the optical disk 5 in the direction of the spindle motor 90. The link 71 moves the drive shaft 74 along the link groove 75 to retract the groove roller 73. Similarly, the link 76 moves the drive shaft 79 along the link groove 80 to retract the groove roller 78. With this operation, the clamp hole 6 is positioned on the spindle motor 90. Next, the spindle motor 90 moves in the direction of the optical disk 5, and the clamp hole 6 is inserted into the rotating part and fixed. Next, as shown in FIG. 11, the link 64 of the parallel link moves the drive shaft 70 along the link groove 69 and retracts the side walls of the links 62 and 63 to a position where it does not contact the optical disk 5. Similarly, the links 71, 76, 83 are moved, and the rollers 73, 78, 89 are retracted to positions where they do not contact the optical disk 5 and recording / reproduction is performed. Next, when the optical disk 5 is ejected from the drive 60, the optical disk 5 is ejected from the drive 60 by an operation reverse to the operation of inserting the optical disk 5 described in FIG. This has the effect of providing a thin and small drive.

  As described above, according to the embodiment of the present invention, the rollers on both ends of the arm are brought into contact with the outer peripheral side surface of the optical disk stored in the magazine, and the arm is rotated from the outside to switch the rotational force due to the spring force of the arm in the reverse direction. The optical disk is pushed out of the magazine and pushed into the magazine. Thus, there is an effect that the optical disk can be moved linearly from the magazine and put in and out at high speed only by applying a small force. In addition, since the distance between the magazine and the drive can be shortened, it is effective for miniaturization. In addition, since the storage interval of the optical disk can be narrowed, there is an effect that a small and large capacity magazine can be provided.

Further, since the optical disk is pressed in the storing direction by the arm during transportation, there is an effect that the optical disk does not jump out of the magazine and an effect that the recording surface is not damaged because the optical disk does not move in the magazine.
In addition, a magazine that can be attached to and detached from the main unit, and a disc changer that can take out, record, and reproduce the target optical disc from among the optical discs stored in the magazine by swinging the arm, and can store the disc. This has the effect of providing a high-speed access and a small and large capacity disk changer.
The optical disk 5 can be a commercially available average thickness of 1.2 mm (maximum thickness portion of about 1.5 mm) and an outer diameter of 120 mm. When a commercially available optical disk is used, the disk storage pitch of the magazine 2 is about 5 mm to 8 mm. Further, the drive rollers 50a to 50d of the disk transport roller are disposed so as to contact the non-recording surface of the optical disk 5, and the driven rollers 51a to 51d are disposed to contact the recording surface. As a result, the disc transport roller 51 and the recording surface of the optical disc 5 do not slip, so that the recording surface can be prevented from being damaged.

Another embodiment of the disk changer 1 of FIG. 1 will be described with reference to FIG.
FIG. 4 is a side view of the disk changer 1 and the magazine 2 in the second embodiment. Four optical disks 5a, 5c, 5e, and 5g are ejected from the magazine 2 of FIG. The state where it was conveyed in parallel to the two drives 60a to 60d is shown.

  In FIG. 4, the description of the components having the same reference numerals as in FIG. 1 may be omitted. As shown in FIG. 4, the installation pitch Dp of the drive 5 is set to Dp = n × Mp (n is an integer) with respect to the storage pitch Mp of the optical disk 5 of the magazine 2. FIG. 4 shows a case where n = 2. As a result, the drives 60a to 60d are positioned on the odd-numbered optical disks 5a, 5c, 5e, and 5g, or the even-numbered optical disks 5b, 5d, 5f, and 5h, thereby driving the four optical disks 5 at a time to drive 60a. Can be transferred to 60d and recorded and reproduced. Also, four optical disks 5 can be stored in the magazine 2 from the drives 60a to 60d at a time. The drive rollers 50a to 50d of the disk transport roller are provided with toothed pulleys 39a to 39d that are driven to rotate by the toothed belt 40. Further, the drive motor 41 drives the toothed belt 40 to rotate. The driven rollers 51a to 51d provided facing the driving rollers 50a to 50d are provided with a gap of about 50% to 75% of the thickness of the optical disk. In the configuration of FIG. 4, in the case of the magazine 2 that stores 12 optical disks 5, it is preferable that the arrangement of the drive 60 be Dp = 3 × Mp.

  As described above, according to the embodiment of the present invention, a plurality of optical disks can be transported to the drive at a time from the magazine and recorded and reproduced, and a plurality of optical disks can be stored in the magazine from the drive at a time. There is an effect that can be shortened. In addition, signals can be recorded and reproduced on all optical disks stored in the magazine simply by moving the drive from odd-numbered to even-numbered optical disks in the magazine. As a result, the moving distance and moving time of the drive can be shortened, and the changer can be miniaturized and the disk replacement time can be shortened. In addition, since recording and reproduction can be performed in parallel by a plurality of drives at the same time, there is an effect that the data transfer speed can be increased. In addition, since a gap is provided between the driving roller and the driven roller of the disk conveying roller to reduce the pressing force when the optical disk is caught, there is an effect of reducing damage to the recording surface of the optical disk and an effect of reducing the biting torque. .

Another embodiment of the disk transport roller in FIG. 1 will be described with reference to FIGS. 5 to 7, the same reference numerals as those in FIG.
FIG. 5 shows a plan view of the disk transport roller and its periphery in the third embodiment, and shows a view from above the disk changer 1 of FIG.
FIG. 6 shows a side view of the disk transport roller of FIG.

  The driving roller 50 and the driven roller 51 of the disk transport roller shown in FIGS. 5 and 6 are a roller 53 attached to the rotating shaft 52, a disk pushing roller 55 provided on the rotating shaft 52 and movable in the direction of arrow 57, and a disk pushing A moving mechanism (not shown) for moving the roller 55 in the direction of the arrow 57 in the drawing, a pulley 39 for rotating the driving roller 50, and bearings 54a and 54b of the driving roller 50 are provided. The optical disc 5 has a non-recording area 7. Note that the roller diameter of the disk pushing roller 55 is larger than the roller diameters of the driving roller 50 and the driven roller 51.

  The operation of the disk pushing roller 55 will be described. First, the disk pushing roller 55 is retracted to the position indicated by the broken line. Next, the optical disk 5 ejected from the magazine 2 is nipped between the driving roller 50 and the driven roller 51 and conveyed to the drive 60. Next, when the optical disk 5 passes between the driving roller 50 and the driven roller 51, the disk pushing roller 55 is moved in the direction of the optical disk 5, and the disk pushing roller 55 is brought into contact with the side surface of the optical disk 5 and pushed into the drive 60. Similarly, the optical disk 5 can be pushed into the magazine 2 by the disk pushing roller 55.

  In general, a large pushing force is required to insert the optical disk 5 into the drive 60 and the magazine 2. Therefore, in the embodiment of the present invention, even if the pushing force by the driving roller 50 and the driven roller 51 is small by providing the disk pushing roller 55, the optical disk 5 can be pushed into the drive 60 and the magazine 2 by the disk pushing roller 55. it can. For this reason, since the pinching force between the driving roller 50 and the driven roller 51 can be reduced, there is an effect that damage to the recording surface of the optical disk 5 can be reduced.

FIG. 7 shows another side view of the disk transport roller of FIG.
As shown in FIG. 7, the driven roller 51 can be omitted and the optical disk 5 can be transported on the driving roller 50 and can be pushed into the live 60 and the magazine 2 by the disk pushing roller 55. Thereby, since there is no pressing force with respect to the optical disk, there is an effect that damage to the recording surface of the optical disk 5 can be reduced.

One embodiment of the disk storage detection sensor 102 for detecting the optical disk 5 stored in the magazine 2 of FIG. 2 will be described with reference to FIG.
FIG. 8 is a plan view of the magazine 2 having the disk storage detection sensor 102 according to the fourth embodiment. In FIG. 8, the description of the components having the same reference numerals as in FIG. 2 may be omitted.

  In the step portion 9 for housing the optical disk 5 provided on the base plate 3 of the magazine 2, a through hole 44 penetrating the outside is provided in the vicinity of the outer peripheral portion of the optical disk 5. A contact 45 and a spring 47 that presses the contact 45 in the direction of the optical disk 5 are provided in the penetrating portion 44. A protrusion is provided on the side of the contact 45 that is opposite to the surface in contact with the optical disk 5, and the position of the protrusion is detected by a transmissive optical sensor 46. Thereby, when the optical disk 5 is stored in the magazine 2, the contact 45 is pushed out, so that the protrusion of the contact 45 blocks the optical path of the optical sensor 46, and the optical disk 5 is stored. Can be detected. When the optical disk 5 is not stored, the protrusion of the contactor 45 does not block the optical path of the optical sensor 46, so that it can be detected that the optical disk 5 is not stored.

FIG. 9 shows another plan view of the magazine 2 having the disk storage detection sensor 102 in the fourth embodiment. FIG. 9 shows a configuration in which the contact 45, the spring 47, and the optical sensor 46 are provided in a fixed portion 48 that is formed integrally with the base plate 3, for example.
As described above, according to the embodiment of the present invention, it is possible to detect whether or not the optical disk 5 is stored in the magazine 2.
The magazine 2 and the disk changer 1 of the embodiment described so far carry the optical disk 5 horizontally, but the disk changer can be rotated 90 degrees to carry the optical disk 5 vertically. In addition to the above, embodiments in which the above-described examples are modified can be considered, but all fall within the scope of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Disc changer, 2 ... Magazine, 4a-4h ... Optical disk storage part, 5 ... Optical disk, 6 ... Clamp hole, 11 ... Arm, 12a, 12b ... Roller, 15 ... Rotating shaft, 16 ... Trigger, 17 ... Torsion spring, DESCRIPTION OF SYMBOLS 23 ... Entrance / exit, 24 ... Trigger rod, 35a-35d ... Push rod drive motor, 36a-36d ... Push rod, 50a-50d, 51a-51d ... Disc conveyance roller, 60 ... Drive, 61 ... Entrance / exit, 104 ... Moving stand, 106, 107 ... disc passage detection sensor, 108 ... disc position detection sensor.

Claims (14)

An optical disk storage magazine that stores an optical disk as a recording medium and that can be attached to and detached from a disk changer having an optical disk drive device that records or reproduces signals on the optical disk,
An arm whose side facing the outer peripheral side surface of the optical disc is substantially arc-shaped;
A rotation shaft provided between both ends of the arm and serving as a rotation center of the arm;
A torsion spring for applying a rotational force to the arm;
The rotational force of the torsion spring is switched to one of two predetermined directions according to the force supplied to the arm from the outside of the optical disk storage magazine,
The arm is rotated in one of the directions by the rotational force of the torsion spring, and one end of the arm or the other end is on the outer peripheral side surface of the optical disc according to the rotation direction of the arm. An optical disk storage magazine which contacts and moves in a direction of ejecting the optical disk from the optical disk storage magazine or a direction of insertion.   2. The optical disk storage magazine according to claim 1, wherein a plurality of the optical disk storage magazines are integrated and a plurality of the optical disks are stored.   3. The optical disk storage according to claim 1, wherein the optical disk storage magazine has rollers at both ends of the arm, and the rollers contact an outer peripheral side surface of the optical disk when the optical disk moves. magazine.   4. The optical disk storage magazine according to claim 1, wherein the optical disk storage magazine has a guide for guiding the optical disk in a direction in which the optical disk moves in opposition to an outer peripheral side surface of the optical disk.   5. The optical disc storage magazine according to claim 1, wherein the optical disc storage magazine has a through-hole penetrating the outside of the optical disc storage magazine for detecting the presence or absence of the optical disc at a position facing the outer peripheral side surface of the optical disc. An optical disk storage magazine characterized by that. A disc changer having an optical disc drive device for recording or reproducing a signal to or from an optical disc as a recording medium, and capable of detaching an optical disc storage magazine storing the optical disc;
The optical disk storage magazine is
An arm whose side facing the outer peripheral side surface of the optical disc is substantially arc-shaped;
A rotation shaft provided between both ends of the arm and serving as a rotation center of the arm;
A torsion spring for applying a rotational force to the arm;
The disc changer, or the optical disc storage magazine,
A disk transport roller comprising a drive roller for transporting the optical disk between the optical disk drive device and the optical disk magazine, and a driven roller that is driven to rotate while sandwiching the optical disk between the drive rollers;
The disc changer is
A push rod for applying a rotational force to the arm of the optical disc storage magazine;
When mounting the optical disk stored in the optical disk storage magazine to the optical disk drive device,
The disc changer applies a rotational force to the arm of the optical disc storage magazine using the push rod, switches the rotational force of the torsion spring in the reverse direction, and rotates the arm by the rotational force of the torsion spring, One end of the arm is brought into contact with the outer peripheral side surface of the optical disc, and the optical disc is ejected from the optical disc storage magazine,
The disk transport roller transports the ejected optical disk to the optical disk drive device,
When storing the optical disk mounted on the optical disk drive device in the optical disk storage magazine,
The disk transport roller transports the optical disk ejected from the optical disk drive device to the optical disk storage magazine, contacts an outer peripheral side surface of the optical disk with an end of the arm of the optical disk storage magazine, and the optical disk storage magazine. A rotational force is applied to the arm of the torsion spring, the rotational force of the torsion spring is switched in the reverse direction, the arm is rotated by the rotational force of the torsion spring, and the other end of the arm contacts the outer peripheral side surface of the optical disc. Then, the optical disk is stored in the optical disk storage magazine.   7. The optical disk storage magazine according to claim 6, wherein a plurality of the optical disks are stored, and the optical disk drive device, the disk transport roller, and the push rod are mounted at a position of the optical disk storage magazine facing the entrance / exit of the optical disk. A disc changer comprising a moving table that moves in a direction perpendicular to a plane of a transport path of the optical disc.   7. The optical disk storage magazine according to claim 6, wherein a plurality of the optical disks are stored, and a plurality of the optical disk drive devices, a plurality of the disk transport rollers, and a plurality of the optical disk storage magazines are positioned at positions facing the optical disk entrance / exit of the optical disk storage magazine. A disc changer comprising: a moving table on which the push rod is mounted and which moves in a direction perpendicular to a plane of a transport path of the optical disc.   9. The optical disk storage magazine according to claim 8, wherein the optical disk storage interval is Mp, and the disk transport roller, the push rod, and the optical disk drive device are arranged at an interval Dp that is substantially an integral multiple of Mp, A disk changer, wherein the optical disk is transported and mounted from the optical disk storage magazine to the optical disk drive apparatus, and a plurality of the optical disks are transported from the optical disk drive apparatus to the optical disk storage magazine for storage.   10. The disk changer according to claim 6, wherein the optical disk storage magazine has rollers at both ends of the arm, and the rollers are in contact with an outer peripheral side surface of the optical disk when the optical disk is transported.   11. The disc changer according to claim 6, wherein the optical disc storage magazine has a guide for guiding the optical disc in a direction in which the optical disc moves, facing the outer peripheral side surface of the optical disc.   The optical disk storage magazine according to any one of claims 6 to 11, wherein the optical disk storage magazine has a through-hole penetrating to the outside of the optical disk storage magazine at a position facing the outer peripheral side surface of the optical disk. A disc changer, wherein a contact for contacting the optical disc is inserted into a through hole, and the presence or absence of the optical disc is detected from an intrusion length of the contact.   13. The method according to claim 6, further comprising: a pressing roller that moves in a direction orthogonal to the optical disk transport direction on a rotation shaft of any one of the disk transport rollers and has a larger roller diameter than the disk transport roller. The push roller contacts the optical disc and conveys the optical disc to the optical disc drive apparatus and / or the optical disc storage magazine.   14. The disk changer according to claim 13, wherein the pushing roller is provided on a rotating shaft of a driving roller provided in the disk conveying roller.

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