JP2004079051A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the pulling-out of a disk by increasing the amount of projection as much as possible when the disk is carried out and stopped, and to surely carry in the disk again during reloading. <P>SOLUTION: When a disk is carried out, a space between a guiding member 11 and a carrying means 20 which confront each other is set slightly wider than that when the disk is carried in. When the disk is ejected, and an insertion detection switch 29 is ON→OFF→ON, the carrying-out of the disk is stopped. By setting the side space between the opposing members, the projection amount L1 of the disk whose carrying-out is completed is optimized, a contact point between a carrier roller 21 and the disk is set closer to a center D0, and a carrying-in force is surely applied to the disk from the carrier roller 21 during reloading. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a disk device in which a disk is conveyed while being held between a pair of holding members, and more particularly, to a disk device capable of reliably performing a disk discharging operation and a reloading (reloading) process.
[0002]
[Prior art]
FIG. 8 is a plan view showing a discharging operation in a conventional disk device.
[0003]
8 is provided with a guide member 11 for sandwiching the edge of the disk D, and a transport means 20 including first to fourth transport rollers 21, 22, 23 and 24. I have. In this disk device, when the disk D is inserted in the Y1 direction from an insertion opening (not shown), one edge (X2 side) of the disk D is guided by the guide member 11, and the other (X1 side) of the disk D is guided. A conveying force is applied to the edge from the conveying means 20, and one edge of the disk D is transported so as to roll along the guide member 11.
[0004]
Further, in the disk device, a stock portion 3 for accommodating a plurality of discs D is provided in a housing, and the disc D in the stock portion 3 is selected and held between the guide member 11 and the transporting means 20. By pulling out, the selected disk D can be driven at any time.
[0005]
In the disc device, the transport roller 21 on the insertion side is provided on a rotating arm 28. The turning arm 28 is provided with an urging member SP, and the turning arm 28 is always urged clockwise in the drawing. A detection switch 29 is provided in the vicinity of the turning arm 28 so as to turn on when the turning arm 28 turns clockwise and turn off when the turning arm 28 turns counterclockwise. Before the insertion and ejection of the disc D is started, the rotating member is rotated clockwise, and the detection switch 29 is set to ON.
[0006]
When the disc D is ejected, the distance between the guide member 11 and the conveying means 20 is the same as that when the disc is inserted, that is, in the case of a small-diameter disc of 8 cm, the opposing dimension is approximately 8 cm so that the small-diameter disc can be clamped. In the case of a large-diameter disc of 12 cm, the opposing dimensions are set to approximately 12 cm so that the large-diameter disc can be clamped. In this state, both edges of the disk D are clamped, and the disk D is moved in the illustrated Y2 direction, which is the discharge direction, by applying the conveying force from the conveying means 20.
[0007]
When the disk D is ejected in the Y2 direction in this manner, the transport roller 21 is pressed in the X1 direction by the edge of the disk D, and the rotating arm 28 is rotated in the counterclockwise direction. When the edge corresponding to the maximum diameter (diameter) of the disk D reaches the transport roller 21, the rotation amount of the rotation arm 28 in the counterclockwise direction becomes maximum, and at this time, the detection switch 29 is switched from ON to OFF. Can be When the disk D is further ejected and the maximum diameter of the disk D passes the transport roller 21, the rotating arm 28 is returned clockwise, and the detection switch 29 is switched from OFF to ON.
[0008]
When a control unit (not shown) provided in the disk device confirms that the detection switch 29 has been switched from ON to OFF to ON when the disk D is ejected, a motor (for driving the transporting means 20) is provided. (Not shown), the discharge operation of the disk D is stopped by stopping the supply of power. At this time, since the disc D is stopped in a state where it protrudes from the insertion port at the discharge stop position D1, the disc D can be pulled out of the apparatus.
[0009]
When a predetermined time has elapsed after the disc D was stopped near the insertion slot, it is considered that there is no intention to pull out the disc D to the outside, and the reloading section reloads the disc D from the insertion slot in the depth direction. Processing is executed.
[0010]
[Problems to be solved by the invention]
However, in the above-mentioned conventional disk device, the opposing distance between the guide member 11 and the conveying means 20 when the disk D is ejected is set to be narrow so as to substantially match the diameter of the small-diameter disk or the diameter of the large-diameter disk. I have. Therefore, when the disk D is ejected, it takes time for the detection switch 29 to switch from ON to OFF to ON. That is, because the facing gap is narrow, the turning arm 28 turns counterclockwise to turn off the detection switch 29, and then the turning arm 28 turns clockwise and the detection switch 29 turns again. Before turning on, the disk D moves a long distance in the Y2 direction.
[0011]
Therefore, when the unloading operation is stopped, the discharge amount of the disk D projecting in the direction of the insertion opening becomes too long, and when the unloading operation is stopped, the disk D is centered by the guide member 11 and the transport rollers 21. It is in a state of being held at a position farther away from the Y1 side. Therefore, when the first transporting roller 21 is started clockwise for the reloading process, the transporting force of the transporting roller 21 to the disk D in the Y1 direction cannot be reliably provided. It may not be possible to retract in the Y1 direction.
[0012]
Also, when the detection member 29 is switched from ON to OFF, that is, if the conveyance member is stopped early without waiting for the detection member 29 to change from OFF to ON, the guide member 11 and the conveyance roller 21 are stopped in a stopped state. The edge of the disk D can be clamped near the center position of the disk D, and the reloading process can be performed reliably. However, if the ejection is stopped when the detection switch 29 changes from ON to OFF, the amount of protrusion of the disk D in the Y2 direction becomes too short, and the amount of protrusion of the disk D from the insertion port becomes small. When pulling out with a finger, it becomes difficult to hold the disk D with the finger.
[0013]
SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and makes it possible to easily eject a disc ejected from an insertion slot by increasing the ejection amount of the disc as much as possible at the time of ejection, and to surely reload (reload) the disc ejected from the insertion slot. It is an object of the present invention to provide a disk device capable of performing such operations.
[0014]
[Means for Solving the Problems]
The present invention is directed to a pair of holding members that hold an edge of the disk from both sides and provide a conveying force to at least one edge of the disk at intervals in a direction of a surface of the disk, and a facing distance between the pair of holding members. And a drive unit for holding and driving the disk held and carried by the holding member,
When the disc held by the drive unit is clamped by the pair of clamping members and carried out, the disc is pushed by the disc to be in a first detection state, and when the disc is carried out, a second detection state is set. Detection means is provided,
The opposing interval when the disc to be ejected is detected by the detecting means is set wider than the opposing interval when the disc is pinched and carried toward the drive unit, and the opposing interval is set wider. The carrying out is stopped when the detecting means is brought into the second detecting state by the disk carried out by the member.
[0015]
According to the present invention, the distance between the pair of holding members when the disk is detected by the detecting unit is slightly wider than the distance between the pair of holding members when the disk is loaded, so that the discharging operation is performed according to the operation of the detecting unit. The ejection position of the disc when the recording is stopped. Therefore, it is easy to pull out the disc after unloading with a finger, and it is possible to reliably apply a force in the loading direction to the disc during the reloading process in which the transport unit is driven in the discharging direction from this stopped state. Become like
[0016]
For example, one of the pair of holding members has a plurality of conveying rollers for applying a conveying force to the disc, and the other is a guide member for guiding the movement of the disc in the discharging direction.
[0017]
In this case, of the plurality of transport rollers, the first transport roller that is located farthest from the drive unit is supported by a rotating arm, and the rotating arm is configured such that the first transport roller is guided by the guide. It can be configured as being biased in a direction approaching the member.
[0018]
Further, the detection means may be operated when the rotation arm rotates in a direction in which the first transport roller separates from the guide member.
[0019]
Further, according to the present invention, when the disc is not removed even after a lapse of a predetermined time after the unloading operation is stopped, the facing distance between the pair of holding members is reduced, and the disc is provided with a conveying force in the loading direction. Can be something.
[0020]
With this configuration, it is possible to reliably perform the reload operation for loading the disc once ejected.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described with reference to the drawings.
[0022]
1 is a perspective view showing an example of the internal structure of a disk drive according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view taken along line III-III of FIG. 2, and FIG. It is a top view explaining.
[0023]
The disk device 1 shown in FIGS. 1 and 2 is capable of reproducing and recording each of a CD (compact disk) or a DVD having a diameter of 8 cm (small diameter disk) and a diameter of 12 cm (large diameter disk). A plurality of disks having a diameter of 12 cm are stocked in the disk device, and any one of the disks can be selected and driven.
[0024]
A nose portion having a liquid crystal display panel and various switches is provided on the front surface (Y2 side surface) of the apparatus main body (not shown). The nose portion is provided with a slit-like insertion port (not shown) extending in the width direction (X direction). A stock portion 3 on which a plurality of large-diameter discs can be stacked in the height direction is provided in the back portion on the Y1 side of the disc device 1. The large-diameter disc is mounted on a disc holder 41 provided on the stock portion 3. , And are stored in a state of being stacked in the height direction.
[0025]
As shown in FIGS. 1 and 2, a first moving member 6 and a second moving member 7 are provided on the base 2 so as to be movable in the width direction (X1-X2 direction). A rack 6a is formed on the first moving member 6, and a rack facing the rack 6a is provided on the second moving member 7. On the base 2, a connecting gear 8 rotationally driven by a setting motor M shown in FIG. 2 is provided as a distance setting means, and the connecting gear 8 is connected to a rack 6a of the first moving member 6, The second moving member 7 is engaged with both of the racks. When the connection gear 8 is rotated by the setting motor M, the first moving member 6 and the second moving member 7 move in a direction approaching and moving away from each other in synchronization.
[0026]
The second moving member 7 is provided with a guide member 11 that extends in the illustrated Y1-Y2 direction, which is the disk introduction / ejection direction, as one holding member. On the surface on the opposite side (the X1 side in the figure) of the guide member 11, a long groove 11a for the guide extending in the Y direction in the figure is formed. As shown in FIG. 3, the cross-sectional shape of the long groove 11a is a V-shape in which the opening end side on the X1 side is wide and the X2 side is narrow.
[0027]
A detection arm (detection member) 12 is provided at an end of the guide member 11 on the discharge side (Y2 side). The detection arm 12 is supported so as to be able to rotate clockwise and counterclockwise in FIG. 2 about the shaft 13 and is urged in a counterclockwise direction by an urging member (not shown).
[0028]
The detection arm 12 is formed by bending a detection piece 12 a located at the end of the guide member 11 on the discharge side. When the detection piece 12a is pushed outward (X2 direction) by the outer peripheral edge of the disc D moving in the long groove 11a of the guide member 11, the detection arm 12 rotates clockwise.
[0029]
At the other end of the detection arm 12, a pressing piece 12b bent downward in the plane of the drawing is formed by bending, and this pressing piece 12b faces the actuator of the insertion detection switch 14. When the detection arm 12 is turned clockwise, the insertion detection switch 14 is turned on by the pressing piece 12b.
[0030]
When the detection arm 12 rotates counterclockwise and the detection piece 12a covers the discharge side (Y2 side) end of the long groove 11a of the guide member 11, the pressing piece 12b detects the insertion. When the switch 14 is released from the actuator, the insertion detection switch 14 is switched to the OFF state.
[0031]
On the surface of the first moving member 6, a conveying member 20 including first to fourth conveying rollers 21, 22, 23, and 24 arranged in the insertion direction (Y direction) of the disk D serves as the other holding member. The guide member 11 is provided to face the guide member 11, and the guide member 11 and the transport member 20 form a pair of holding members. As shown in FIG. 3, the first to fourth transport rollers 21, 22, 23, and 24 are formed with a flange whose thickness gradually decreases from the center toward the outer periphery in the vertical direction. Are held in V-grooves between the flanges.
[0032]
A transport motor (not shown) is provided in the apparatus, and the power of the transport motor is reduced by a group of reduction gears and transmitted to the transport rollers 21, 22, 23, and 24 via transmission gears 25, 26, 27, and the like. The first to fourth transport rollers 21, 22, 23, and 24 are all driven to rotate in the same direction. When the first to fourth transport rollers 21, 22, 23, and 24 rotate clockwise, the disk D is carried in the inner part of the apparatus (Y1 direction). It is carried out in the direction (Y2 direction). At this time, the disk is transported so as to roll in the long groove 11a of the guide member 11.
[0033]
As shown in FIG. 4, the first moving member 6 is provided with a rotating arm 28 that can rotate around a support shaft 28 a in a fixed angle range, and the first transport roller 21 The rotation arm 28 is rotatably supported by a rotation shaft 28 b provided at the tip of the rotation arm 28. Further, the rotating arm 28 is constantly urged clockwise by an urging member SP such as a tension coil spring. An insertion detection switch 29 is provided on the first moving member 6 as detection means. When the first transport roller 21 is pushed by the edge of the disk and the rotation arm 28 rotates a predetermined angle in the counterclockwise direction, the insertion detection switch 29 is turned off in the first switching state. When the turning arm 28 is turned clockwise by the urging force of the urging member SP, the insertion detection switch 29 is switched to the ON state, which is the second switching state.
[0034]
The base 2 is provided with a linear position sensor (not shown) for detecting a moving position of the second moving member 7 in the X direction. The linear position sensor is, for example, a linear variable resistor, and can detect the position of the second moving member 7 in the X direction by the linearly changing resistance value. Can be detected. That is, the linear position sensor functions as a means for detecting the interval between the pair of holding members, that is, the guide member 11 and the transport member 20.
[0035]
As shown in FIG. 2, the guide member 11 is provided with a first detection switch 31 and a second detection switch 32. The first detection switch 31 and the second detection switch 32 function as clamp position detecting means for detecting that the disk has moved to the clamp position. The respective actuators of the first detection switch 31 and the second detection switch 32 appear in the long groove 11a of the guide member 11, and are turned on by being pressed by the edge of the disk moving in the long groove 11a. Works.
[0036]
The stock portion 3 is provided with a disc holder 41 for holding a front outer peripheral edge of a large-diameter disc having a diameter of 12 cm, which is sandwiched between the guide member 11 and the transport member 20 and carried in. The disk holder 41 is provided in plural numbers (six in the illustrated embodiment) in the thickness direction of the disk, and is in a state of being vertically stacked.
[0037]
On the base 2, a plurality of guide posts 42 are installed vertically and rotatably supported. Small gears 43 are fixed to the base ends of all the guide columns 42, and a ring-shaped gear 44 that meshes with all the small gears 43 is provided on the base 2. When the ring-shaped gear 44 is driven by a selection motor (not shown), all the guide posts 42 are all rotationally driven synchronously.
[0038]
A screw groove 42a is formed on the outer periphery of all the guide columns 42. The pitch of the screw groove 42a is dense at the upper part and the lower part of the guide column 42, and the pitch is sparse at the middle part. The disk holder 41 is provided with a projection (not shown) that meshes with the screw groove 42a of the guide column 42. When the guide column 42 rotates, each disk holder 41 is moved up and down by the screw groove 42a.
[0039]
As described above, since the pitch of the screw groove 42a is dense at the upper part and the lower part of the guide column 42, the disk holder 41 is stocked so as to overlap the upper part and the lower part closely. Further, since the pitch of the screw groove 42a is sparse at an intermediate portion of the guide column 42, the disk holder 41 can move up and down apart from the vertically adjacent disk holder at the intermediate portion of the guide column 42. By moving the disk holder 41 up and down, one of the disk holders 41 is selected, and as shown in FIG. 1, the selected disk holder 41A is moved to the same height position as the guide member 11 and the transport member 20. Move and stop.
[0040]
A drive unit 50 is provided on the base 2. As shown in FIG. 3, the drive unit 50 has a drive chassis 51 and a clamp chassis 52. The drive chassis 51 and the clamp chassis 52 are combined in a parallel state, and the guide member 11 and the transport member 20 are combined. The drive chassis 51 is located below the transport path of the disk D, and the clamp chassis 52 is located above.
[0041]
The drive chassis 51 is provided with a spindle motor 53 on the lower side, and a turntable 54 rotated and driven by the spindle motor 53 on the upper side. An optical head 55 is provided below the drive chassis 51. A clamper 56 is rotatably supported by the clamp chassis 52, and the clamper 56 is urged downward by a leaf spring 57.
[0042]
The drive chassis 51 is provided with a clamp mechanism, which drives the drive chassis 51 and the clamp chassis 52 up and down. If the distance between the drive chassis 51 and the clamp chassis 52 is large, a gap is formed between the turntable 54 and the clamper 56 for the disk D to move. When the distance between the drive chassis 51 and the clamp chassis 52 is reduced, the clamper 56 is pressed against the turntable 54 by the force of the leaf spring 57.
[0043]
FIG. 2 shows a state where the drive unit 50 has moved to the drive position. The disk D is clamped and driven by the drive unit 50 stopped at the drive position shown in FIG. When the disc holder 41 of the stock unit 3 is moved up and down to select one of the discs, the drive unit 50 retreats to the insertion slot side (Y2 side) and the disc holder 41 is moved. The disk which moves up and down does not hit the drive unit 50.
[0044]
The setting motor M for setting the facing distance Wx by moving the first moving member 6 and the second moving member 7 is driven by a motor driver 63, which is controlled by the main controller 61. You. The detection output from the linear position sensor for detecting the moving position of the second moving member 7 is given to the main controller 61. The detection outputs of the insertion detection switch 14 and the insertion detection switch 29 and the detection outputs of the first detection switch 31 and the second detection switch 32 provided on the guide member 11 are also provided to the main control device 61. .
[0045]
Next, the operation of the disk device will be described.
In the disk drive 1, when the connecting gear 8 is driven by the setting motor M, the first moving member 6 and the second moving member 7 move in the X direction in synchronization with each other. An opposing distance Wx between the transfer member 11 and the conveying member 20 is set.
[0046]
In a standby state waiting for the insertion of the disc D, the opposing distance Wx between the guide member 11 and the conveying member 20 is set to be smaller than the diameter (8 cm) of the small-diameter disc, and each conveying roller of the conveying member 20 carries the disc. It is rotating in the direction you want.
When a small-diameter disc having a diameter of 8 cm is inserted through the insertion slot, the detection arm 12 and the rotating arm 28 are pushed outward, and one of the insertion detection switches 14 is turned on, and the insertion detection switch 29 is turned off. Switch. At this time, main controller 61 determines that either the small-diameter disk or the large-diameter disk has been inserted.
[0047]
At this time, the setting motor M is driven, the first moving member 6 and the second moving member 7 move left and right, and the facing distance Wx between the guide member 11 and the conveying member 20 holds the small-diameter disc having a diameter of 8 cm. Is set to the first opposing interval W1 that can be transported. At the first opposing interval W1, the opposing interval between the second conveying roller 22 and the third conveying roller 23 and the guide member 11 is approximately 8 cm, and the first conveying roller 21 is connected to the second conveying roller 22 and the third conveying roller 22. Is slightly closer to the guide member 11 side than the transport roller 23 of the first roller. The setting of the facing distance is controlled by detecting the moving position of the second moving member 7 with a linear position sensor.
[0048]
In the case where a small-diameter disc having a diameter of 8 cm is inserted, when the opposing distance Wx between the guide member 11 and the conveying member 20 is set to the aforementioned W1, the detection arm 12 and the rotating arm 28 are moved by the edges of the disc. Only one of them is largely rotated, and only one of the switching states is performed, in which the insertion detection switch 14 is turned on or the insertion detection switch 29 is turned off. That is, in the case of a small-diameter disc, only one of the insertion detection switches 14 and 29 is in the detection state, and the other is not in the detection state. The elastic force of the urging member for urging the arm is set.
[0049]
In such a detection state, the main controller 61 determines that the small-diameter disk has been inserted, and the facing distance Wx is fixed to the first facing distance W1 (approximately 8 cm). The disc is transported in the Y1 direction. At this time, the small-diameter disk is moved in the Y1 direction so as to roll along the long groove 11a of the guide member 11 by the clockwise rotating force of each of the transport rollers 21, 22, 23, and 24 of the transport member 20. .
[0050]
The small-diameter disk is not transported to the position held by the disk holder 41 of the stock unit 3, but is transported to a position where it can be driven by the drive unit 50 at the drive position in FIG. The fact that the small-diameter disk has been transported to a position where it can be driven by the drive unit 50 is detected by monitoring the first detection switch 31 and the second detection switch 32.
[0051]
When it is detected that the small-diameter disk has been transported to a position where it can be driven by the drive unit 50, the drive unit 50 performs a disk clamping operation, and the small-diameter disk is clamped by the turntable 54 of the drive unit 50. Then, the first moving member 6 and the second moving member 7 move in a direction away from each other, and after the guide member 11 and the conveying member 20 have separated from the small-diameter disk, the small-diameter disk is driven to rotate.
[0052]
When unloading the driven small-diameter disc, the first moving member 6 and the second moving member 7 approach each other, and the opposing distance Wx between the guide member 11 and the conveying member 20 is equal to the first opposing distance W1. , And the small-diameter disk is clamped. Then, the clamp of the disk by the drive unit 50 is released, and the small-diameter disk is carried out in the Y2 direction by the driving force of the transport member 20. During this discharging operation, only one of the detection arm 12a and the rotation arm 28 is largely rotated, and the insertion detection switch 14 is turned on or the insertion detection switch 29 is turned off. Thereafter, the insertion detection switch 14 is turned off or the insertion detection switch 29 is turned on. As described above, when one of the insertion detection switches 14 and 29 is switched, the conveyance motor is stopped, thereby completing the unloading of the small-diameter disk.
[0053]
When the small-diameter disc is ejected, the opposing distance Wx between the guide member 11 and the conveying member 20 is controlled by changing it in the same manner as when a large-diameter disc is carried out, which will be described later with reference to FIG. It is also possible. Further, the reload processing of the small-diameter disk can be performed in the same manner as the reload processing of the large-diameter disk described with reference to FIG.
[0054]
Next, loading and unloading operations of a large-diameter disc having a diameter of 12 cm will be described.
As described above, the opposing distance Wx between the guide member 11 and the transport member 20 is set to be smaller than the dimension capable of holding the small-diameter disk, and each transport roller constituting the transport member 20 is initially rotated in the loading direction. In the standby state, when a large-diameter disc having a diameter of 12 cm is inserted, the detection arm 12 and the rotating arm 28 are simultaneously pushed outward. At this time, when at least one of the two insertion detection switches 14 and 29 is operated, the main controller 61 detects that a disk has been inserted, and the facing distance Wx between the guide member 11 and the transport member 20 as described above. However, the opposing dimensions are set to approximately 8 cm so that the small-diameter disk can be once clamped.
[0055]
When the large-diameter disk is carried in the Y2 direction by the operation force of the carrying member 20 in the carrying-in direction, the detection arm 12 and the rotation arm 28 are simultaneously rotated outward, so that the insertion detection switch 14 is turned on, The insertion detection switch 29 is turned off, and both the insertion detection switches 14 and 29 are switched. At this point, the main controller 61 determines that the large-diameter disc has been inserted, and further starts the setting motor M, thereby moving the first moving member 6 and the second moving member 7 to the left and right. This moving position is detected by the linear position sensor, and the facing distance Wx between the guide member 11 and the transporting member 20 is set to the second facing distance W2 at which the large-diameter disc can be sandwiched and transported. The second opposing distance W2 is such that the distance between the second conveying roller 22 and the third conveying roller 23 and the guide member 11 is approximately 12 cm, and the first conveying roller 21 is The position is closer to the guide member 11 than the third transport roller 23 is.
[0056]
Then, the large-diameter disk is carried in the Y1 direction by the rotational force of each of the transport rollers 21, 22, 23, and 24 of the transport member 20.
[0057]
At this time, the large-diameter disc having a diameter of 12 cm may be carried in until it is held by the disc holder 41 moved to the height of the selected position in the stock section 3, or the large-diameter disc that is carried in is shown in FIG. It may be carried into a position where it can be clamped by the drive unit 50 stopped at the drive position and clamped by the drive unit 50. Whether or not the large-diameter disk has been clamped normally is determined based on the detection outputs of the first detection switch 31 and the second detection switch 32.
[0058]
When the large-diameter disk is clamped to the turntable 54, the opposing distance Wx between the guide member 11 and the transport member 20 is set to a dimension larger than a dimension capable of holding a large-diameter disk, and The disk is driven to rotate while both the member 11 and the transport member 20 are separated from the disk.
[0059]
One of the disk holders 41 of the stock unit 3 is moved to a selected position indicated by reference numeral 41A in FIG. 1 by moving up and down. Therefore, the large-diameter disks carried in by the guide member 11 and the transport member 20 can be sequentially held by all the disk holders 41. When the disk holder 41 is selected by moving the disk holder 41 up and down, the drive unit 50 moves to the Y2 side and retreats to a position where it does not hit the disk held by the disk holder 41 moving up and down.
[0060]
When driving any of the large-diameter disks in the stock section 3, the disk holder 41 is moved up and down so that the selected disk holder 41A is moved to the same height as the guide member 11 and the transport member 20. Stop in position. Then, the opposing interval Wx between the guide member 11 and the transport member 20 is reduced until the second opposing interval W2 is reached, and the selected large-diameter disc is sandwiched between the guide member 11 and the transport member 20. Then, the transport rollers 21, 22, 23, and 24 are driven in a counterclockwise direction to pull out the large-diameter disk. When it is determined based on the detection outputs of the first detection switch 31 and the second detection switch 32 that the large-diameter disk has reached a position at which the large-diameter disk can be loaded into the drive unit 50, the large-diameter disk is driven. The guide member 11 and the transport member 20 are separated from the large-diameter disk, and the large-diameter disk is rotationally driven.
[0061]
When discharging the large-diameter disk that has been driven by the drive unit 50 or the large-diameter disk selected by the stock unit 3, the transport rollers 21, 22, 23, and 24 are driven in the counterclockwise direction to rotate the large-diameter disk. The disc is ejected toward the insertion slot. When the large-diameter disc in the stock unit 3 is ejected, the large-diameter disc is once clamped in the drive unit 50 and then carried out by the transport rollers. The control at this time is performed based on the flow of FIG. 5 or FIG.
[0062]
The basic operation at the time of disc ejection shown in FIG. 5 is to wait for a disc ejection request such as operation of an eject button in step (hereinafter referred to as “ST”) 1. When there is a discharge request, the spindle motor 53 is stopped under the control of the main controller 61. Further, the optical head 55 is moved to a standby position on the inner peripheral side of the disk. Then, the drive chassis 51 shown in FIG. 3 is lowered or the clamp chassis 52 is raised, so that the clamp of the disk sandwiched between the turntable 54 and the clamper 56 is released.
[0063]
In ST2, the setting motor M is driven, the first moving member 6 and the second moving member 7 are moved, and the facing distance Wx between the guide member 11 and the conveying member 20 is set to the second facing distance W2. Then, the disc is sandwiched between the guide member 11 and the transport member 20. This facing interval is set by monitoring the output of the linear position sensor in ST3. Also, by setting the facing distance Wx to the second facing distance W2, a large-diameter disk can be detected by the first detection switch 31 and the second detection switch 32. By monitoring that the detection switch 31 and the second detection switch 32 are in the detection state, it is possible to recognize that the large-diameter disk to be ejected exists on the turntable 54.
[0064]
Next, in ST4, the setting motor M is operated to widen the facing distance Wx. Then, in ST5, the opposing interval Wx is set to a third opposing interval W2 + α wider by the dimension α than the second opposing interval W2. The dimension α is 1 mm or more and 5 mm or less when α> 0, and α = 3 mm in this embodiment. As described above, the facing distance W2 + α is the facing distance between the second conveying roller 22 and the third conveying roller 23 and the guide member 11, and the opposing distance between the first conveying roller 21 and the guide member 11 at this time. The interval is shorter than the third opposing interval W2 + α, and is shorter than the second opposing interval W2.
[0065]
When the linear position sensor detects that the facing distance is set to W2 + α in ST5, the setting motor M is stopped. Then, in ST6, each of the transport rollers 21, 22, 23 and 24 of the transport member 20 is started in the counterclockwise direction, and a transport force in the discharge direction is applied to the edge of the large-diameter disc, so that the large-diameter disc is removed. It is carried out toward the insertion slot.
[0066]
At this time, the main controller 61 monitors the detection output of the insertion detection switch 29. When the large-diameter disc is carried out, the first transport roller 21 is pushed in the X1 direction at the edge of the disc, and the turning arm 28 turns counterclockwise. Then, when the center D0 of the disk is located slightly Y1 side from the imaginary line extending in the X direction through the contact point between the first transport roller 21 and the edge of the disk, the insertion detection switch 29 Switching from ON to OFF (first detection state; ST7). Further, when the disc is unloaded and the center D0 moves in the Y2 direction from the imaginary line, the turning arm 28 is turned clockwise by the urging force of the urging member SP to detect the insertion. The switch 29 is switched from OFF to ON (second detection state; ST8).
[0067]
At the time point when the insertion detection switch 29 is switched from ON to OFF to ON in ST7 and ST8, the main control device 61 stops the transport motor, and the unloading of the large-diameter disk D is stopped. At this time, all the large-diameter discs having a diameter of 12 cm stop at the discharge stop position D2 (see FIG. 4) in which a part of the disc protrudes from the insertion slot.
[0068]
Here, when the large-diameter disc is carried out, the facing distance Wx between the guide member 11 and the carrying member 20 is set to be longer than the facing distance W2 at the time of carrying in by α, so that the insertion detection switch is turned off. The time until switching to ON is shorter than in the conventional example shown in FIG. 8, that is, when carrying out with the facing distance set to W2. That is, the amount of movement of the large-diameter disk in the Y2 direction after the center D0 of the disk exceeds the virtual line and before the insertion detection switch 29 is turned ON is shorter than that in FIG.
[0069]
Therefore, the protrusion dimension L1 of the stopped disk D from the first transport roller 21 as shown in FIG. 4 is shorter than the protrusion dimension L2 of the conventional example of FIG. In the state shown in FIG. 4, the edge of the large-diameter disk is sandwiched between the first conveying roller 21 receiving the urging force of the urging member SP and the guide member 11, but the first conveying roller The contact point between the disk 21 and the edge of the disk is closer to the disk center D0 than in the conventional example of FIG. Therefore, at the time of the reload process described later, it is possible to reliably supply the disk with the carry-in input.
[0070]
The state in which the ejection of the large-diameter disc is stopped as shown in FIG. 4 can be realized by the flow shown in FIG. 6, the order of ST14, ST15, and ST16 is different from ST4, ST5, and ST6 in FIG. 5, and the other processes are the same as those in FIG.
[0071]
In FIG. 6, after the opposing distance Wx between the guide member 11 and the conveying member 20 is set to the second opposing distance W2 in ST3, the conveying rollers 21, 22, 23, and 24 of the conveying member 20 are turned counterclockwise in ST14. In the Y direction to eject the disk in the Y2 direction. During the unloading operation and before the insertion detection switch 29 is switched from ON to OFF, the facing distance is set to W2 + α.
[0072]
As described above, while the disk is being unloaded, the facing distance between the guide member 11 and the transport member 20 is increased to W2 + α, so that the transport output from the transport roller to the disk located in the drive unit 50 is ensured. Can be given to
[0073]
Then, by confirming the operation of the insertion detection switch 29 in ST7 and ST8 and completing the unloading of the disk, the protrusion amount of the disk is set to L1 to complete the unloading of the disk as shown in FIG. Can be.
[0074]
FIG. 7 shows a flowchart when the disk stopped in the state shown in FIG. 4 is reloaded (reload operation).
[0075]
After the disc is stopped at the ejection stop position D2 shown in FIG. 4 and the ejection operation of the disc is completed, it is monitored by a sensor (not shown) whether or not the disc has been pulled out of the insertion slot within a predetermined time. When the disk still remains without being pulled out, main controller 61 issues a request for reload processing (ST21).
[0076]
When a request for reload processing (reloading request) in ST21 is issued, the transport motor is started by the main controller 61, and the first to fourth loading rollers 21, 22, 23, and 44 of the transporting member 20 are clocked. It is rotated in the rotation direction (ST22). As described above, in the state of FIG. 4, the first transport roller 21 receiving the urging force of the urging member SP is pressed against the position close to the center D0 of the disk D, so that the first transport roller 21 The rotating force surely acts on the edge of the disk, and the disk is carried in the Y1 direction.
[0077]
However, in FIG. 7, the following control is performed to further ensure the loading operation.
In ST23, the first moving member 6 and the second moving member 7 are moved to reduce the facing distance Wx from the third facing distance W2 + α and set the second facing distance W2, that is, approximately 12 cm. In this manner, by reducing the facing distance Wx between the guide member 11 and the transport member 20, the disk can be strongly sandwiched between the first transport roller 21 and the guide member 11, and the disk can be reliably loaded in the Y1 direction. become.
[0078]
When the disc is pulled in the insertion direction at the back of the apparatus, the insertion detection switch 29 is turned off in ST24. At this time, main controller 61 can determine that disk reloading has started (ST25). If the insertion detection switch 29 is not turned off after a predetermined time has elapsed after the start of reloading, the reloading process is stopped in ST26.
[0079]
Then, the reloaded disk is carried into the drive unit 50 and clamped on the turntable 54.
[0080]
【The invention's effect】
As described above, according to the present invention, the amount of protrusion of the ejected and stopped disk from the insertion slot is made as large as possible, and the disk can be easily pulled out. Reloading can be performed reliably.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of a disk drive according to the present invention;
FIG. 2 is a plan view of the disk device,
FIG. 3 is a sectional view taken along line III-III of FIG. 2;
FIG. 4 is a plan view of the disk device showing a state where the disk has been ejected and stopped.
FIG. 5 is a flowchart showing stop detection control when a disc is ejected,
FIG. 6 is a flowchart showing another embodiment of stop detection control when ejecting a disc;
FIG. 7 is a flowchart showing a disk reloading (reloading operation) process;
FIG. 8 is a plan view showing a discharging operation in a conventional on-vehicle disk device.
[Explanation of symbols]
1 Disk device
3 Stock Department
5 Disk transport means
6. First moving member
7. Second moving member
8 Connecting gear (interval setting means)
11 Guide member (clamping member)
11a long groove
14,29 Insertion detection switch
20 Conveying member (pinching member)
21, 22, 23, 24 Transport rollers
31 1st detection switch (clamp position detection means)
32 Second detection switch (clamp position detection means)
61 Main controller

Claims (5)

A pair of holding members that hold the edge of the disk from both sides and provide a conveying force to at least one edge of the disk at intervals in the direction of the surface of the disk, and an interval that varies the facing distance between the pair of holding members A disk unit provided with setting means, and a drive unit for holding and driving the disk held and carried by the holding member,
When the disc held by the drive unit is clamped by the pair of clamping members and carried out, the disc is pushed by the disc to be in a first detection state, and when the disc is carried out, a second detection state is set. Detection means is provided,
The opposing interval when the disc to be ejected is detected by the detecting means is set wider than the opposing interval when the disc is pinched and carried toward the drive unit, and the opposing interval is set wider. The disk device is characterized in that when the detecting means is brought into the second detection state by a disk carried out by a member, the carrying out is stopped. 2. The disk device according to claim 1, wherein one of the pair of holding members has a plurality of transport rollers for applying a transport force to the disk, and the other is a guide member for guiding movement of the disk in a discharge direction. A first transport roller at a position farthest from a drive unit among the plurality of transport rollers is supported by a rotating arm, and the rotating arm is moved in a direction in which the first transport roller approaches the guide member. 3. The disk device according to claim 2, wherein the disk device is biased to the side. The disk device according to claim 3, wherein the detection unit is operated when the rotation arm rotates in a direction in which the first transport roller moves away from the guide member. 5. When the disc is not removed even after a predetermined time has elapsed after the unloading operation has been stopped, the facing distance between the pair of holding members is reduced, and the disc is provided with a conveying force in the loading direction. The disk device according to any one of the above.

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