JP3875109B2 - Disk unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disk device in which a disk is sandwiched and conveyed by a guide unit and a conveyance unit, and more particularly to a disk device that can always eject a disk when the position of the disk cannot be detected.
[0002]
[Prior art]
Some in-vehicle disk devices are provided with a guide member for sandwiching the edge of the disk and a conveying means. In this disk device, when the disk is inserted from the entrance / exit, one edge of the disk is guided by the guide member, and a conveying force is applied from the conveying means to the other edge of the disk. The edge is transferred so as to roll along the guide member.
[0003]
The disk apparatus using the guide member and the conveying means can be made thinner than the conveying roller system in which the disk is sandwiched from above and below in the thickness direction to exert the conveying force.
[0004]
In the disk device, the guide member Ma Alternatively, if a detecting means is provided in any of the conveying means, it can be recognized that the disk has moved to a position where it can be clamped to the rotation drive unit. Further, when the rotation drive is completed, it is necessary to sandwich the disk between the guide member and the transport unit and eject the disk from the rotation drive unit. However, if the detection unit is provided, this detection is performed. By referring to the output from the means, it can be confirmed whether or not the disk is securely clamped between the guide member and the conveying means.
[0005]
[Problems to be solved by the invention]
However, in the disk device, it is possible that normal detection cannot be performed by the detection unit even though the disk exists in the rotation drive unit. For example, such a state occurs when the thickness of the disk is too thin and the outer periphery of the disk is detached from the detection means, or when the detection means becomes undetectable due to a failure.
[0006]
When detection by the detecting means becomes impossible in this way, it is determined that the disk is not recognized or the disk can be clamped even though the disk exists in the apparatus. The guide member and the transport means may be separated from the disk.
[0007]
In that case, after that, the detection means can no longer detect the presence of the disk, the disk remains in the apparatus, it is recognized as an operation error, all the operations are stopped, and the disk cannot be taken out from the apparatus. There is a risk of being left unattended.
[0008]
SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a disk device capable of ejecting a disk from the device even when normal detection by a detection unit becomes impossible. .
[0010]
[Means for Solving the Problems]
The present invention Guide means for guiding one edge of the disk, transport means for facing the guide means and applying a transfer force to the other edge of the disk, and an interval for changing the facing distance between the guide means and the transport means Setting means, and rotation driving means for clamping the disk conveyed by the conveying means,
At least one of the guide means and the transport means is provided with detection means for detecting that the disk has reached a position that can be clamped by the rotation drive means,
When the disk is clamped by the rotation driving means, the guide means and the transport means are separated from the edge of the disk, and after the drive of the disk is finished, the distance between the guide means and the transport means is reduced. The gap setting means is operated so that the disk can be clamped. In this clamping operation, when the disk cannot be detected by the detection means, an operation error occurs while the disk is clamped by the guide means and the transport means. It is characterized in that a control means for recognizing and subsequently allowing the disc to be ejected by the transport means is provided.
[0011]
in front Book In the invention, when the detection of the disk becomes impossible, the state where the disk is held between the guiding means and the conveying means is maintained, and the process proceeds to error processing. Therefore, it becomes possible to discharge the disk sandwiched between the guide means and the transport means, and it is possible to prevent the disk from remaining in the apparatus.
[0012]
In the present invention, It is preferable that when the disc is not detected by the detecting means, the operation history is referred to and the operation error is recognized when there has been a process in which the disc is clamped on the turntable.
[0013]
By referring to such a history, for example, when the disk is not supplied to the rotation drive unit, it is possible to prevent the apparatus from being erroneously put into an error state and being stopped.
[0015]
In the present invention, For example, the detection means has two detection switches, and when the disk reaches the clampable position, an interval between the two detection switches is set so that the two detection switches operate together. When both of the two detection switches do not detect the disk, the operation error is recognized.
[0016]
Further, when the operation error is recognized, the transfer means may be automatically operated in the discharge direction without waiting for an external operation, or the entire operation is stopped, and the discharge operation unit Only the operation command may be accepted, and other operations may not be accepted. Alternatively, when the operation error is recognized, all the operations are stopped, and when any of the plurality of operation units is operated, the conveying unit may be operated in the discharge direction.
[0017]
By controlling in this way, it is possible to shift to an operation in which the disk is reliably ejected in error processing.
[0018]
According to the present invention, a disk inserted from an insertion port of the apparatus is transported by the transport means and transferred to the rotation driving means and clamped, or a stock section for storing a plurality of disks is provided inside the apparatus. Further, the present invention can be applied to a disk in which the disk in the stock unit is transported by the transporting means, transferred to the rotation driving means, and clamped.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to the drawings.
[0020]
1 is a perspective view showing an example of the internal structure of the disk device of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a sectional view taken along line III-III in FIG.
[0021]
A disk device 1 shown in FIGS. 1 and 2 includes a CD (compact disk) or a DVD (digital versatile disk), each of a disk having a diameter of 8 cm (small diameter disk) and a disk having a diameter of 12 cm (large diameter disk). It is possible to play and record various types of discs. A large-diameter disk having a diameter of 12 cm is stocked in the disk device and can be selected and driven.
[0022]
A nose portion having a liquid crystal display panel and various switches is provided on the front of the apparatus main body (not shown). The nose portion is provided with a slit-like insertion port extending in the width direction. In the back of the disk device 1 on the Y1 side, a stock unit 3 is provided in which a plurality of large-diameter discs can be stacked in the height direction (Z direction). The large-diameter disc is provided in the stock unit 3. The disc holders 41 are held one by one and stored in a stacked state in the height direction.
[0023]
As shown in FIGS. 1 and 2, a disk transport section 5 for loading and unloading a disk is provided between an insertion port provided in the nose section and the stock section 3. As a configuration of the disk transport unit 5, 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). The first moving member 6 is provided with a rack 6a, and the second moving member 7 is provided with a rack (not shown) facing the rack 6a. A connecting gear 8 that is rotationally driven by a setting motor M shown in FIG. 2 is provided on the base 2 as a distance setting means. The connecting gear 8 is connected to the rack 6a of the first moving member 6, It meshes with both racks of the second moving member 7. When the connecting gear 8 is rotated by the setting motor M, the first moving member 6 and the second moving member 7 are synchronized and moved in directions toward and away from each other.
[0024]
The second moving member 7 is provided with a guide member (guide means) 11 extending in the Y1-Y2 direction, which is the disk introduction / discharge direction. A guide groove 11a for guide extending in the Y direction in the figure is formed on the surface of the guide member 11 on the opposite side (X1 side in the figure). As shown in FIG. 3, the cross-sectional shape of the guide groove 11a is a V-shape that is wide on the opening end side on the X1 side in the drawing and narrow on the X2 side.
[0025]
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 around the shaft 13, and is biased counterclockwise by a biasing member (not shown).
[0026]
The detection arm 12 is formed with a detection piece 12a bent 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 disk D that is inserted into the guide groove 11a of the guide member 11 and moves, the detection arm 12 rotates clockwise.
[0027]
At the other end of the detection arm 12, a pressing piece 12 b is formed that is bent downward in the drawing, and this pressing piece 12 b faces the actuator of the insertion detection switch 14. When the detection arm 12 is rotated in the clockwise direction, the insertion detection switch 14 is switched to the ON state by the pressing piece 12b.
[0028]
Further, when the detection arm 12 is rotated counterclockwise and the detection piece 12a covers the discharge side (Y2 side) end of the guide groove 11a of the guide member 11, the pressing piece 12b is inserted. The insertion switch 14 is switched to the OFF state after being separated from the actuator of the detection switch 14.
[0029]
On the surface of the first moving member 6, conveying means 20 including first to fourth conveying rollers 21, 22, 23, 24 arranged in the insertion direction (Y direction) of the disk D is attached to the guide member 11. It is provided facing. As shown in FIG. 3, the first to fourth transport rollers 21, 22, 23, and 24 are each formed with a flange that gradually decreases in thickness from the center toward the outer peripheral side. Is held in a V-groove between the flanges.
[0030]
A conveying motor (not shown) is provided in the apparatus, and the power of the conveying motor is decelerated by a reduction gear group, and each conveying roller 21, 22, 23 is transmitted via transmission gears 25, 26, 27, and the like. , 24, and the first to fourth transport rollers 21, 22, 23, 24 are all driven to rotate in the same direction. When the first to fourth transport rollers 21, 22, 23, and 24 are rotated clockwise, the disk D is carried in the rear direction (Y1 direction) of the apparatus, and when the disk D is rotated counterclockwise, the disk D is externally moved. It is carried out in the direction (Y2 direction).
[0031]
As shown in FIG. 1, the first moving member 6 is provided with a rotating arm 28 that can rotate within a certain angular range with a support shaft as a fulcrum. It is supported at the tip of the moving arm 28. The rotating arm 28 is always urged clockwise by an urging member such as a tension coil spring. On the first moving member 6, there is provided an insertion detection switch 29 (see FIG. 2) that is turned on when the turning arm 28 is turned by a predetermined angle counterclockwise.
[0032]
The insertion detection switches 14 and 29 constitute a disc insertion detection means, and the insertion detection switches 14 and 29 constitute a discharge position detection means.
[0033]
The base 2 is provided with a linear position sensor that detects the movement position of the second moving member 7 in the X direction. The linear position sensor is, for example, a linear variable resistor, and the position of the second moving member 7 can be detected based on the linearly changing resistance value. As a result, the facing distance between the guide member 11 and the conveying means 20 is detected. Wx can be detected.
[0034]
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 detection means for detecting that the disk has moved to the clamp position. FIG. 5 is a cross-sectional view of the guide member 11 at a portion where the detection switch is provided. As shown in FIG. 5, the actuators 31 a and 32 a of the first detection switch 31 and the second detection switch 32 appear in the guide groove 11 a of the guide member 11. When the actuator 31a or 32a is pressed at the edge of the disk D moving in the guide groove 11a, the first detection switch 31 or the second detection switch 32 operates in the ON state.
[0035]
The stock section 3 is provided with a disk holder 41 for holding the front outer peripheral edge of a large-diameter disk having a diameter of 12 cm that is sandwiched between the guide member 11 and the conveying means 20 and carried in. A plurality of disc holders 41 (six in the illustrated embodiment) are provided in the thickness direction of the disc and are stacked one above the other.
[0036]
A plurality of guide columns 42 are vertically installed on the base 2 and supported rotatably. Small gears 43 are integrally provided at the base end portions of all guide columns 42, and ring-shaped gears 44 that mesh with all the small gears 43 are provided on the base 2. When the ring gear 44 is driven by a selection motor (not shown), all the guide columns 42 are driven to rotate in synchronization.
[0037]
A screw groove 42 a is formed on the outer periphery of all the guide columns 42. The screw grooves 42a have a dense pitch at the upper and lower portions of the guide column 42, and a sparse pitch at the middle portion. The disk holder 41 is provided with a protrusion 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.
[0038]
As described above, since the pitch of the screw grooves 42a is dense at the upper and lower portions of the guide column 42, the disk holder 41 is stocked so as to overlap closely at the upper and lower portions. Further, since the pitch of the screw groove 42a is sparse in the middle part of the guide column 42, in the middle part of the guide column 42, any one of the disk holders 41 is separated from the other adjacent disk holders in the vertical direction. Can be moved to. One of the disk holders 41 is selected by the movement operation of the disk holder 41 up and down, and the selected disk holder 41 is selected with the same height as the guide member 11 and the conveying means 20 as shown in FIG. Move to position 41A and stop.
[0039]
A drive unit 50 is provided on the base 2. As shown in FIG. 3, the drive unit 50 includes a drive chassis 51 and a clamp chassis 52. The drive chassis 51 and the clamp chassis 52 are parallel to each other, and are movable in directions toward and away from each other. It is combined. The drive chassis 51 is positioned below the transport path of the disk D by the guide member 11 and the transport means 20, and the clamp chassis 52 is positioned above.
[0040]
A spindle motor 53 is provided on the lower side of the drive chassis 51, and a turntable 54 that is rotationally driven by the spindle motor 53 is provided on the upper side. In this embodiment, the turntable 54 is a rotation driving means. An optical head 55 is provided under the drive chassis 51. The optical head 55 can irradiate the disk with detection light for reproduction or recording light through a notch formed in the drive chassis 51, and the optical head 55 extends along the recording surface of the disk. Move in the direction
[0041]
On the other hand, a clamper 56 is rotatably supported by the clamp chassis 52, and the clamper 56 is urged downward by a plate spring 57.
[0042]
Clamp driving means is provided on the drive chassis 51 or the base 2, and the drive chassis 51 is driven up and down in a direction toward and away from the clamp chassis 52 by the clamp driving means. When the drive chassis 51 is lowered, a gap for moving the disk D is formed between the turntable 54 and the clamper 56. When the drive chassis 51 rises, the turntable 54 and the clamper approach each other. At this time, the clamper 56 is pressed against the turntable 54 by the force of the leaf spring 57, and this operation causes the disk D to move to the turntable 54 and the clamper 56. Is sandwiched between.
[0043]
As an example of the structure of the clamp driving means, a slide base that moves in the Y1-Y2 direction is provided on a moving base that moves the drive unit 50 in the Y1-Y2 direction, and a guide groove formed in the slide member is provided in the guide groove. The drive chassis 51 is supported. When the slide member is moved in one direction, the drive chassis 51 is lowered by the guide groove, and when the slide member is moved in the other direction, the drive chassis 51 is raised by the guide groove. The slide member is moved in the Y1-Y2 direction by a motor provided on the moving base, or the power of the motor provided on the base 2 is transmitted to the slide member on the moving base, The slide member is operated as described above.
[0044]
FIG. 2 shows a state where the drive unit 50 has moved to the drive position. The disk D is clamped and rotated by the drive unit 50 stopped at the drive position shown in FIG. When the disk holder 41 of the stock unit 3 is moved up and down to select any disk, the drive unit 50 is retracted to the insertion slot side (Y2 side), and the disk holder 41 is moved. At the same time, the disk moving up and down does not hit the drive unit 50.
[0045]
The setting motor M for moving the first moving member 6 and the second moving member 7 to set the facing distance Wx is driven by a motor driver 63. The motor driver 63 is controlled by the main controller 61. The The motor of the clamp driving means is also controlled by the main controller 61. A detection output from a linear position sensor that detects the movement position of the second moving member 7 is also given to the main controller 61. The detection outputs of the first detection switch 31 and the second detection switch 32 provided on the guide member 11 are also given to the main control device 61.
[0046]
Next, the operation of the disk device will be described.
In the disk device 1, the connecting gear 8 is driven by the setting motor M, so that the first moving member 6 and the second moving member 7 are moved in the X direction in synchronization with each other. A facing interval Wx between the member 11 and the conveying means 20 is set.
[0047]
In a standby state where the insertion of the disk D is awaited, the facing distance Wx between the guide member 11 and the conveying means 20 is set to be narrower than the diameter (8 cm) of the small-diameter disk.
[0048]
When inserting a disk, if an operation button or the like provided on the nose portion is operated, the respective transport rollers 21, 22, 23, 24 of the transport means 20 are started in a direction in which the disk can be loaded. When either the detection arm 12 or the rotation arm 28 is pushed outward by the outer peripheral edge of the disk inserted from the insertion slot, and either the insertion detection switch 14 or 29 is turned on, The main controller 61 determines that a disc has been inserted.
[0049]
When it is determined that the disc has been inserted, the setting motor M is driven to move the first moving member 6 and the second moving member 7 away from each other, so that the guide member 11 and the conveying means 20 face each other. The interval between the first moving member 6 and the second moving member 7 is widened so that the interval Wx has a size that allows a small-diameter disk having a diameter of 8 cm to be sandwiched and conveyed. The setting of the facing interval Wx is controlled by detecting the moving position of the second moving member 7 with a linear position sensor.
[0050]
At this time, the facing interval Wx is such that only one of the two insertion detection switches 14 and 29 is expanded by pushing only one of the detection arm 12 and the rotation arm 28 outward by a small-diameter disk having a diameter of 8 cm. Is set so that both are not ON at the same time. Therefore, the main controller 61 determines that the inserted disk is a small-diameter disk unless both the insertion detection switches 14 and 29 are turned on at the same time, and the opposing distance Wx between the guide member 11 and the conveying means 20 is 8 cm. It is fixed at a position where the disk can be held and conveyed.
[0051]
The small-diameter disk is carried in by the clockwise rotational force of each of the conveying rollers 21, 22, 23, 24 of the conveying means 20, and the disk rolls along the guide groove 11a of the guide member 11. It is moved in the Y1 direction.
[0052]
When a small-diameter disk is inserted, this disk is not carried to the position held by the disk holder 41 of the stock section 3 but is conveyed to a position where it can be driven by the drive unit 50 at the drive position indicated by the one-dot chain line in FIG. Is done. The conveyance of the small-diameter disk to a position where it can be driven by the drive unit 50 is detected by monitoring the operating states of the first detection switch 31 and the second detection switch 32.
[0053]
FIG. 6 shows the relationship between the small-diameter disk Ds having a diameter of 8 cm and the first detection switch 31 and the second detection switch 32. The actuator 31a of the first detection switch 31 and the actuator 32a of the second detection switch 32 are arranged at an interval L along the disc transport direction. The distance L is set so that the actuators 31a and 32a are simultaneously pressed by the outer peripheral edge of the small diameter disk Ds when the center hole of the small diameter disk Ds coincides with the center of the turntable 54.
[0054]
Therefore, both the actuator 31a of the first detection switch 31 and the actuator 32a of the second detection switch 32 are pushed by the outer peripheral edge of the small-diameter disk Ds, and the first detection switch 31 and the second detection switch 32 are When both are operated in the ON state, the main controller 61 determines that the center of the small-diameter disk Ds coincides with the center of the turntable 54, and performs control to stop driving of the conveying means 20.
[0055]
Further, the small-diameter disk Ds is clamped by being sandwiched between the turntable 54 and the clamper 56, and the disk is rotationally driven by the driving force of the spindle motor 53. Then, a reproducing or recording operation is performed by the optical head 55.
[0056]
The small-diameter disk Ds that has been reproduced or recorded is unloaded in the Y2 direction by the guide member 11 and the conveying means 20 and unloaded toward the insertion port provided in the nose portion. When the disc is ejected, the operation state of the pair of insertion detection switches 14 and 29 is monitored by the main control device 61, and when one of the insertion detection switches is turned on and then turned off, the conveyance is performed. The roller is stopped, and the disk stops with a part of the small-diameter disk Ds protruding from the insertion port.
[0057]
Next, a control operation when a large-diameter disk D having a diameter of 12 cm is inserted will be described.
[0058]
As described above, when the disk is not inserted, the facing distance Wx between the guide member 11 and the transporting unit 20 is set to be narrower than the dimension for transporting the small-diameter disk Ds. When a disk is inserted and either the detection arm 12 or the rotation arm 28 is pushed outward and any one of the insertion detection switches 14 and 29 is turned on, it is determined that the disk has been inserted. The Then, the setting motor M is started and the interval between the first moving member 6 and the second moving member 7 is widened. At this time, the facing interval Wx is first set to a dimension for conveying the small-diameter disk Ds having a diameter of 8 cm. The
[0059]
When the large-diameter disk D having a diameter of 12 cm is inserted, immediately after the disk is pulled by the transport roller of the transport means 20, the detection arm 12 and the rotating arm 28 are simultaneously moved outward by the outer peripheral edge of the disk. The two insertion detection switches 14 and 29 are both turned on because they are pushed out. At this time, the main controller 61 determines that the large-diameter disk D has been inserted.
[0060]
Immediately thereafter, the setting motor M is started again, the first moving member 6 and the second moving member 7 move in the direction in which the interval increases, and the facing interval Wx between the guide member 11 and the conveying means 20 becomes The interval is set such that the large-diameter disk Ds can be sandwiched and a conveying force can be applied. The facing interval Wx is set by monitoring the linear position sensor. Then, the large-diameter disk is carried in the Y1 direction by the rotational force of each of the transport rollers 21, 22, 23, 24 of the transport means 20.
[0061]
As shown in FIG. 6, when the center hole of the large-diameter disk D having a diameter of 12 cm coincides with the center of the turntable 54, both the first detection switch 31 and the second detection switch 32 are turned on. Further, an interval L between the actuators 31a and 32a of both detection switches is set. In this embodiment, the operation of clamping the large-diameter disk D to the turntable 54 and the detection of the completion of clamping are controlled based on the flow of FIG.
[0062]
After the large-diameter disk D is clamped on the turntable 54, the spindle motor 53 is started, the disk D is rotationally driven, and the reproducing operation or recording operation is performed by the optical head 55. At this time, before the spindle motor 53 is started, the first moving member 6 and the second moving member 7 are driven so as to be separated from each other, and the facing interval Wx between the guide member 11 and the conveying means 20 is widened to guide. The member 11 and the conveying means 20 are separated from the outer peripheral edge of the large-diameter disk having a diameter of 12 cm. Similarly, when the small-diameter disk Ds is driven, the guide member 11 and the conveying means 20 are separated from the outer peripheral edge of the disk.
[0063]
Further, after the guide member 11 and the conveying means 20 are separated from the outer peripheral edge of the disc, the spindle motor 53 is rotated for a short time before shifting to the reproducing or recording operation. As a result, the center hole of the disc surely enters the positioning convex portion 54a of the turntable 54, and the disc clamp can be reliably terminated. By performing this operation, the height of the recording surface of the disk can be set to a normal position. Thereafter, the height of the objective lens in the optical head 55 is adjusted, and the height of the objective lens and the recording surface of the disk is adjusted. A correction operation for setting the interval can be performed.
[0064]
The large-diameter disc D that has been reproduced or recorded can be discharged into the insertion slot as it is, or can be sent to the stock section 3 and held by any one of the disc holders 41.
[0065]
When the operation of the discharging process or the operation of feeding to the stock unit 3 is performed, first, the setting motor M is started, the first moving member 6 and the second moving member 7 approach, and the guide member 11 and the conveying member are conveyed. The facing interval Wx of the means 20 is narrowed, and the large-diameter disk D is sandwiched between the guide member 11 and the transport means 20. At this time, it is detected whether or not the large-diameter disk D is sandwiched between the guide member 11 and the conveying means 20 by the flow shown in FIG. After it is detected that the disk D has been clamped by this flow, the drive chassis 51 of the drive unit 50 is lowered and the clamp of the disk by the turntable 54 and the clamper 56 is released.
[0066]
When the process shifts to the process of ejecting the large-diameter disk D, the transport rollers 21, 22, 23, and 24 are driven counterclockwise, and the disk is unloaded toward the insertion slot. When one of the insertion detection switches 14 and 29 is turned on and then turned off, it is determined that the disk D has reached the discharge position, the transport roller is stopped, and a part of the large-diameter disk D is stopped. The disc stops with protruding from the insertion slot.
[0067]
When the large-diameter disk D released from the clamp on the turntable 53 is sent to the stock section 3, the opposing space Wx between the guide member 11 and the transport means 20 is narrowed, and the large-diameter disk D is formed between the guide member 11 and the transport means 20. Is pinched. Next, after the disc clamp is released, the conveying means 20 starts in the loading direction, and the disc is fed toward the disc holder 41 at the selection position 41A at the same height as the guide member 11 and the conveying means 20, The disc is held by the disc holder 41. Thereafter, the first moving member 6 and the second moving member 7 move in a direction away from each other, the facing distance Wx between the guide member 11 and the transporting unit 20 is widened, and the guide member 11 and the transporting unit 20 are moved to the disc holder. It moves to a position where it does not hit the disk held at 41.
[0068]
The selection operation for moving the disc holder to the selection position 41A is performed by operating one of the operation buttons provided in the nose portion or the like to indicate one of the plurality of disc holders 41 in the stock unit 3 with a number.
[0069]
By this operation, first, the drive unit 50 moves to the insertion slot side (Y2 side), and the drive unit 50 is retracted to a position where it does not hit the disk held by the disk holder 41. Then, the guide column 42 of the stock section 3 is driven, the disk holder 41 is moved up and down by the screw groove 42a, and the guide column 42 stops when the indicated disk holder is moved to the selection position 41A. To do.
[0070]
When the disc holder at the selected position 41A is empty, the disc is fed into the disc holder 41 by the disc insertion operation.
[0071]
Next, when the disc in the stock unit 3 is selected and driven, when the disc holder number is indicated by the operation button, the disc holder 41 is moved up and down, and the indicated disc holder is moved to the selected position. It is moved to 41A. The disc holder 41 at the selection position 41A stops at the same height as the guide member 11 and the transport unit 20.
[0072]
Thereafter, the facing distance Wx between the guide member 11 and the transport unit 20 is narrowed, and the disk D held by the disc holder 41 is sandwiched between the guide member 11 and the transport unit 20. Further, the drive unit 50 that has been retracted is moved in the Y1 direction, and reaches the drive position indicated by the broken line in FIG. 2 and stops. Then, the transport rollers 21, 22, 23, 24 start counterclockwise, the disk is pulled out from the disk holder in the Y2 direction, and the disk is clamped in the drive unit 50. The clamping operation and the detection of the completion of clamping at this time are controlled based on the flow shown in FIG.
[0073]
Next, the control operation in the main controller 61 will be described.
(Processing to clamp the disc inserted from the insertion slot)
FIG. 8 shows a control flow for securely clamping the disk inserted and conveyed from the insertion slot to the turntable 54. The large-diameter disk D having a diameter of 12 cm can be reliably clamped by the flow shown in FIG.
[0074]
As shown in FIG. 6, the distance L between the actuator 31a of the first detection switch 31 and the actuator 32a of the second detection switch 32 is both the outer peripheral edge of the small-diameter disk Ds and the outer peripheral edge of the large-diameter disk D. Therefore, both switches can be turned on together.
[0075]
As a result, in the case of the small-diameter disk Ds, when both the detection switches 31 and 32 are turned on, the center of the disk and the center of the turntable 56 can be made to coincide with each other with considerably high accuracy. On the other hand, in the case of the large-diameter disk D, the position of the center of the disk is within a slightly wide range in the Y direction with both the detection switches 31 and 32 being turned on simultaneously. However, by performing the flow control of FIG. 8, the center hole of the large-diameter disk D can be reliably clamped to the turntable 54. That is, even if the first detection switch 31 and the second detection switch 32 are used for positioning the small-diameter disk Ds and positioning the large-diameter disk D, both disks can be reliably clamped.
[0076]
In the description of FIG. 8, the operation when the large-diameter disk D is clamped will be described. As described above, the small-diameter disk Ds is determined by determining that the center of the disk coincides with the center of the turntable 54 when both the detection switches 31 and 32 are simultaneously turned on without performing the processing of FIG. Even when the operation moves to the clamping operation, the probability of a clamping failure is small. However, in the case of the small-diameter disk Ds, a control operation based on the flow shown in FIG. 8 may be performed.
[0077]
In the flow process of FIG. 8, when a disk whose outer diameter is out of the standard or a disk whose center hole D1 is out of the standard is inserted, or a small diameter disk Ds having a diameter of 8 cm is held in the center. When a 12 cm ring-shaped adapter is inserted without holding the small-diameter disk, it can always be detected that abnormal insertion has been performed. Therefore, in these cases, it is possible to shift to the discharge process.
[0078]
In each flowchart of FIG. 8 and subsequent figures, the processing step is displayed as “ST”.
As shown in FIG. 8, in the insertion standby state (ST1) in which the insertion of the disk from the insertion port is waited, in ST2, the transport rollers 21, 22, 23, 24 of the transport means 20 are operating in the carry-in direction. It waits for either the insertion detection switch 14 or 29 to turn on. When at least one of the insertion detection switches 14 and 29 is turned on, it is determined that a disk has been inserted. When the large-diameter disk D is inserted, both the insertion detection switches 14 and 29 are subsequently turned on. Based on this detection operation, as shown in ST3, the guide member 11 and the conveying means 20 are inserted. Is set to a dimension that allows the large-diameter disk D to be loaded. Then, the large-diameter disk D is carried in the Y1 direction by the rotational force of the respective transport rollers 21, 22, 23, 24 of the transport means 20 that has already been started (ST4).
[0079]
In ST5, it waits for either the first detection switch 31 or the second detection switch 32 to be turned on. When the actuator 31a or 32a is pushed at the edge of the disk moving in the guide groove 11a of the guide member 11 and one of the detection switches is turned on, the process proceeds to the clamping operation of ST6.
[0080]
In this clamping operation, as shown in FIG. 4, the drive chassis 51 is lifted, and the large-diameter disk D being carried in is in a state where both edges are held by the guide member 11 and the transport roller, and the central portion is the turntable. It is pushed up by 54 to be bent. The central portion of the disk in the bent state is pressed against the turntable 54 by an elastic restoring force. After ST6, the disk is fed in the Y1 direction by the transport rollers 23 and 24 while being bent as shown in FIG.
[0081]
When the disc being transported has dimensions conforming to the standard and the first detection switch 31 and the second detection switch 32 are operating normally, the large-diameter disc D is transported in the Y1 direction. In this case, first, the first detection switch 31 should be turned on in ST5. At this time, as shown in FIG. 7, the center hole D1 of the large-diameter disk D is located on the Y2 side by a slight distance δ from the center of the turntable 54. Therefore, when shifting to the clamping operation in ST6, the upper surface of the positioning convex portion 54a of the turntable 54 is pressed against the disk D at a position slightly deviated from the center hole D1. When the disk D further moves in the Y1 direction and the center of the disk D coincides with the center of the turntable 54, the center hole D1 of the disk D is positioned by the positioning convex portion of the turntable 54 by the restoring force of the bent disk D. 54a is forcibly fitted.
[0082]
At this time, the actuator 32a of the second detection switch 32 is pushed at the outer peripheral edge of the disk D, and both detection switches 31 and 32 are turned on in ST7. When the center hole D1 of the disc conforming to the standard is fitted into the positioning convex portion 54a, even if the feeding force in the Y1 direction continues to act on the disc D from the transport roller of the transport means 20, The disk D does not move back and forth from the position where it is fitted to the turntable 54.
[0083]
Therefore, in ST8, it is monitored whether or not the state where both the detection switches 31 and 32 are both ON continues for a certain time (for example, several hundreds msec). If it is determined in ST8 that the state has continued for a certain period of time, in ST9, the transport rollers 21, 22, 23, and 24 of the transport means 20 are reversed, and the ejection force in the Y2 direction is applied to the disk D. Given. In ST10, it is monitored whether both the first detection switch 31 and the second detection switch 32 are ON. Furthermore, in ST11, it is monitored whether or not both detection switches 31, 32 are both ON for a certain period of time (for example, several hundreds msec). It is determined that it is securely fitted to the positioning convex portion 54a of the turntable 54.
[0084]
If it is determined in ST11 that normal clamping has been completed, the transport means 20 is stopped in ST12. Then, as described above, the guide member 11 and the conveying means 20 are separated from the outer peripheral edge of the large-diameter disk D, the spindle motor 53 is started, and the disk D is rotated (ST13).
[0085]
Next, a control flow in the case where it cannot be detected that the disk D is clamped will be described.
[0086]
First, as an example in which a normal detection state is not reached, after either one of the detection switches 31 and 32 is turned on in ST5, both the detection switches 31 and 32 are not turned on in ST7, or the detection switch 31 in ST7. And 32 are turned on at the same time, but before the elapse of a certain time measured in ST8, either one of the detection switches 31 and 32 is turned off or both are turned off, and the two detection switches The state where both 31 and 32 are ON may be resolved.
[0087]
The reason why such a state occurs is that there is a case where the disc D conforms to the standard but is not clamped normally.
[0088]
Second, the inserted disc is nonstandard and the center hole D1 is abnormally large. The same applies to a case where a ring-shaped adapter that can hold the small-diameter disk at the center is inserted without holding the small-diameter disk. In such a case, although the positioning convex portion 54a of the turntable 54 is in the center hole of the disk, the disk moves by an amount that the center hole is too large due to the feeding force of the conveying means 20, and both detections are made. The state where both the switches 31 and 32 are ON cannot be continued for a certain period of time.
[0089]
Third, it is when one of the first detection switch 31 and the second detection switch 32 is out of order and cannot be detected. In this case, even if the center hole D1 of the large-diameter disk D conforming to the standard is normally fitted to the positioning projection 54a of the turntable 54, the first detection switch 31 and the second detection switch It is impossible for both 32 to be ON at the same time. Therefore, detection information that the disk has been clamped normally cannot be obtained.
[0090]
In such a case, the retry operation after ST14 is performed.
In ST7 or ST10, when both the detection switches 31 and 32 are not turned on, the process proceeds to ST14. In ST14, it is determined whether the retry operation has been performed N1 times, which is a predetermined odd number of times, and when it is determined that N1 times have not been reached, the process proceeds to the retry operation processing.
[0091]
In this retry operation, first, the transport direction of the transport rollers 21, 22, 23, 24 of the transport means 20 is reversed, and the process proceeds to ST7 to monitor whether both the detection switches 31 and 32 are simultaneously turned on. Is done. If both detection switches 31 and 32 are turned on at the same time, it is monitored in ST8 whether or not the state has passed for a certain period of time. If it continues for a certain time, the process proceeds to ST9, and if normal disk clamping is completed, the process proceeds to ST12.
[0092]
When it is determined in ST14 that the retry has already been performed N1 times, it is determined that the clamping error is not possible. At this time, the process proceeds to ST17, and the operation of the conveying means 20 is stopped. However, the facing distance Wx between the guide member 11 and the transport unit 20 is not changed, and the state where the disk is sandwiched between the guide member 11 and the transport unit 20 is maintained. In ST18, the clamping operation is released. In other words, the drive chassis 51 is lowered by operating the clamp driving means, and a state where the disk is not restrained by the turntable 54 and the clamper 56 is set as shown in FIG.
[0093]
Then, the process proceeds to ST19, and the disk is automatically ejected by operating the conveying means 20 in the ejection direction. Alternatively, in ST19, a processing operation other than the disc ejection operation is not accepted, an error message is displayed on the display unit of the nose portion, and the disc ejection operation is awaited. When the eject operation button is pressed, the conveying means 20 is operated in the eject direction to eject the disc to the insertion slot. Alternatively, after any "error" is displayed on the display means, if any operation button on the nose part is pressed, regardless of the type of the operation button, the operation automatically proceeds to the discharge operation, The disk may be ejected by operating the conveying means 20 in the ejection direction.
[0094]
In ST14, when it is determined that the number of retries has been performed for a predetermined odd number of times, error processing is performed after ST17. By determining the number of retries to be an odd number, when the conveying rollers 21, 22, 23, 24 of the conveying means 20 are stopped in ST17, the center of the disk D is closer to the insertion port than the center of the turntable 54. The disk D can be stopped at the position moved to.
[0095]
Turntable when clamping error 54's If the disc is stopped on the insertion port side from the center, in the ejection operation in ST19, the conveyance means 20 is operated in the ejection direction while the disk is securely held by the guide member 11 and the conveyance means 20. The disc can be reliably ejected after an error.
[0096]
In addition, when either the first detection switch 31 or the second detection switch 32 is undetectable due to a failure, even if a disc conforming to the standard is normally clamped to the turntable 54, This is recognized as a clamp error. Therefore, when either one of the detection switches 31 and 32 breaks down, the disk is always held between the guide member 11 and the conveying means 20, the clamp is released, and the disk can be ejected.
[0097]
Therefore, the phenomenon that the guide member 11 and the conveying means 20 are separated from the disk and the clamping of the disk is released while the disk is positioned in the apparatus does not occur. If the guide member 11 and the conveying means 20 are separated from the disk even though the switch is out of order, the detection switches 31 and 32 can be moved even if the guiding member 11 and the conveying means 20 are brought close to each other. Since one of them does not operate normally, it becomes impossible to detect whether or not the disk has been normally clamped. Then, the main control device 61 cannot determine whether or not the disk is held in the drive unit 50, the disk remains in the apparatus and becomes in a failure state, and then the disk cannot be ejected.
[0098]
However, in the processing operation of FIG. 8, since the disc can be always ejected when one of the detection switches is broken, the inconvenience of leaving the disc in the apparatus as described above can be prevented. Further, when one of the detection switches is broken, an error is immediately displayed on the display means, so that the user can easily recognize that the apparatus is in a broken state.
[0099]
Next, as a case where the normal detection state is not reached, there is a case where neither of the detection switches 31 and 32 operate in the ON state in ST5.
[0100]
As a cause of such a phenomenon, for example, as shown in FIG. 5, the inserted disk D is too thin, and the outer peripheral edge of the disk is detached from both the actuators 31a and 32a of the detection switches 31 and 32. In some cases, the disk is transported by Alternatively, even when both the first detection switch 31 and the second detection switch 32 are out of order and cannot be detected, both the detection switches 31 and 32 are not turned on in ST5.
[0101]
Therefore, in ST20, it is monitored whether or not the state in which neither of the detection switches 31 and 32 is turned on continues for a certain time (for example, 500 ms). If it is determined in ST20 that a state in which neither of the detection switches 31 and 32 is turned on has elapsed for a certain period of time, the operation proceeds to a retry operation.
[0102]
In this retry operation, in ST21, the transport direction of the transport means 20 is switched to the reverse direction, and the disk is moved in the insertion slot direction (Y2 direction). In ST22, it is monitored whether either one of the detection switches 31 and 32 is turned on within a predetermined time. If any one of the detection switches is turned on within the predetermined time, the process proceeds to ST6 and the disk clamping operation is performed. Try.
[0103]
If neither of the detection switches 31 and 32 is turned on within a predetermined time in ST22, the process proceeds to ST23 and it is determined whether the number of retries has been performed a predetermined number of times. When the number of retries has not reached the predetermined number of times, the process further proceeds to ST21 and the transport direction of the transport means 20 is switched to the reverse direction. When it is determined in ST23 that the number of retries has reached a predetermined number, the process proceeds to ST17, and the opposing distance Wx between the guide member 11 and the transport unit 20 is not changed, and the disk is sandwiched between the guide member 11 and the transport unit 20. The transport rollers 21, 22, 23, 24 of the transport means 20 are stopped.
[0104]
In ST19, the disc is automatically ejected as it is, or the disc is ejected after a disc ejection instruction operation. In this case, the number of retries set in ST23 is set so that the disc stops at a position where the center of the disc has moved to the insertion opening side from the center of the turntable 54 when it is determined that the predetermined number of times has been reached. It is preferred that
[0105]
In the processing operation, for example, even when both the detection switches 31 and 32 become undetectable due to a failure, the state where the disk is sandwiched between the guide member 11 and the transport unit 20 can be maintained. Therefore, the disk can be ejected as it is, or the process can be shifted to a process of accepting only the disk ejection operation, and the disk can be prevented from remaining in the apparatus without being detected.
[0106]
Next, FIG. 9 shows a case where any one of the disk holders 41 in the stock unit 3 is selected, and the disk held by the selected disk holder 41 is pulled out in the Y2 direction to drive. Yu The processing operation in the case of clamping with the turntable 54 and the clamper 56 of the knit 50 is shown.
[0107]
As shown in FIG. 9A, when an operation of selecting any one of the disk holders 41 in the stock unit 3 is performed, in ST25, the guide column 42 is driven and any one of the disk holders 41 is moved to the selected position 41A. Moved to. If it is determined in ST26 that the selection of the disk holder 41 has been completed, the process proceeds to ST3 in FIG. 8, where the facing distance Wx between the guide member 11 and the conveying means 20 approaches the dimension that allows the large-diameter disk D to be clamped. The disk D held by the disk holder 41 located at the position 41 </ b> A is sandwiched between the guide member 11 and the transport unit 20. Thereafter, the control operation for clamping the selected disk to the turntable 54 is performed according to the same flow as in FIG.
[0108]
If it is determined that there is a clamp error by monitoring the operation of the detection switches 31 and 32, a retry is performed in ST14, and it is constant that neither of the detection switches 31 and 32 is turned on in ST20. A retry is also performed when it is determined that the time has continued. If the disc is not normally clamped as a result of the retry, the disc is sandwiched between the guide member 11 and the conveying means 20, the clamp by the turntable 54 and the clamper 56 is released, and the disc can be ejected. These control processes are substantially the same as the control for clamping the disk inserted from the insertion slot.
[0109]
However, as shown in FIG. 9B, when the disk pulled out from the stock unit 3 is clamped, the retry count of ST15 is set to an even N2. The same is true for the set number of retries in ST23. Thus, when the number of retries is set to an even number, when a clamp error occurs, the center of the disk stops at a position where it moves to the insertion opening side from the center of the turntable 54. Therefore, the disc can be reliably ejected when there is a disc clamping error.
[0110]
Next, after the reproduction or recording of the disc clamped by the drive unit 50 is completed, the first moving member 6 and the second moving member 7 are brought close to each other, and the guide member 11 and the conveying means 20 are turned. An operation of holding the disk on the table 54 is performed. In the case of the small-diameter disk Ds having a diameter of 8 cm, it is discharged as it is into the insertion slot. Further, when the large-diameter disc D has a diameter of 12 cm, it may be ejected as it is to the insertion slot or may be fed into the disc holder 41 in the stock section 3.
[0111]
The flow of FIG. 10 shows the control processing operation when the disc clamped on the turntable 54 is sandwiched between the guide member 11 and the transport means 20.
[0112]
When the drive of the disk by the drive unit 50 is completed and an operation for instructing to eject the disk or an operation for holding the large-diameter disk in the disk holder 41 is performed, in ST31, the first moving member 6 and the second moving member 6 The moving member 7 is brought close to each other, and the facing distance Wx between the guide member 11 and the conveying means 20 is set to a dimension that can hold the disk.
[0113]
If the disc clamped on the turntable 54 conforms to the standard and the detection switches 31 and 32 operate normally, the first disc is clamped between the guide member 11 and the conveying means 20. The detection switch 31 and the second detection switch 32 should be turned on simultaneously. Therefore, in ST32 of FIG. 10, when at least one of the detection switch 31 and the detection switch 32 is turned on, it is determined in ST33 that the disk is normally held. In ST34, the normal operation is performed. For example, when an operation instruction for feeding the large-diameter disk D into the disk holder 41 is made, the disk clamp between the turntable 54 and the clamper 56 is released, the conveying means 20 is started, and the disk is at the selection position 41A. It is fed into the disc holder 41.
[0114]
In the case where neither of the detection switches 31 and 32 is turned on in ST32, the retry is performed even though the facing distance Wx between the guide member 11 and the conveying means 20 is a dimension capable of sandwiching the disk.
[0115]
In this retry, a two-stage control process is performed. In the first-stage retry, first, in ST35, the first moving member 6 and the second moving member 7 are moved in the direction away from each other, and the facing interval Wx between the guide member 11 and the conveying means 20 is widened to guide the first step. The member 11 and the conveying means 20 are separated from the outer peripheral edge of the disk. In ST36, the facing distance Wx between the guide member 11 and the transport unit 20 is narrowed again, and the operation of holding the disc between the guide member 11 and the transport unit 20 is performed again.
[0116]
In this first stage retry, for example, when the opposing distance Wx between the guide member 11 and the conveying means 20 is narrowed, an error such that the outer peripheral edge of the disc is disengaged from the guide groove 11a of the guide member 11, or the disc plate As shown in FIG. 5, since the thickness is too thin, there is a high probability that an error or the like in which the outer peripheral edge of the disk is detached from the actuators 31a and 32a of the detection switches 31 and 32 can be repaired.
[0117]
In ST37, it is monitored whether one of the detection switches 31 and 32 is turned on. When one of the detection switches is turned on, it is determined that the disk is normally clamped.
[0118]
In ST38, it is measured how many times the first stage retry has been performed, and it is determined that the retry has been performed for a predetermined N3 times (about 3 times). And the process proceeds to the second stage retry.
[0119]
In the second-stage retry, in ST39, the facing distance Wx between the guide member 11 and the conveying means 20 is slightly narrowed by, for example, about 0.5 mm from the dimension for sandwiching the disk on the turntable.
[0120]
Next, in ST40, the disk clamped on the turntable 54 is rotated at least once. This rotation can be performed by driving the transport rollers 21, 22, 23, 24 of the transport unit 20, or can be performed by starting the spindle motor 53. In ST40 of FIG. 10, the transport rollers 21, 22, 23, and 24 of the transport unit 20 are driven three times in the forward direction, the reverse direction, and the forward direction for about 50 ms.
[0121]
In ST41, it is monitored whether either of the detection switches 31 and 32 is turned on. If the switch is turned on at this point, it is determined that the disk is normally clamped.
[0122]
In ST41, if neither of the detection switches 31 and 32 is turned ON, it is monitored in ST42 whether the second-stage retry operation has been performed a predetermined number of times N4 times, and N4 times (about 3 times) are retried. If neither of the detection switches 31 and 32 is turned ON even after the operation, the second stage retry is completed.
[0123]
In the retry of the second stage, first, in ST39, the opposing distance Wx between the guide member 11 and the conveying means 20 is narrowed, so that the outer diameter of the disk clamped on the turntable 54 is too small than the standard. In addition, it is possible to detect that the material has been sandwiched between the guide member 11 and the conveying means 20.
[0124]
Further, even when the outer peripheral edge of the disk is deformed in a wave shape or the disk is partially warped and the outer peripheral edge is detached from the actuators 31a and 32a at the first time, the disk is rotated in ST40. By doing so, the probability that the actuator 31a or 32a can be pressed with the outer periphery of a disk can be made high.
[0125]
If the disk is not normally detected even if the first-stage retry is performed N3 times and the second-stage retry is performed N4 times, it is determined that a disk pinching error has occurred (ST43).
[0126]
The cause of the pinching error may be a case where the disk is warped abnormally or a case where both the detection switches 31 and 32 are undetectable due to a failure. Alternatively, there may be a case where no disc exists on the turntable 54.
[0127]
If it is determined in ST43 that a pinching error has occurred, the process proceeds to ST44, and the operation history of the disk device held in the memory 62 in the main controller 61 is referred to. In this operation history, when there has not been a time when the disk was clamped by the drive unit 50 before or just before the operation, the process proceeds to ST48, and it is determined that the disk is not held on the turntable 54, and thereafter It is possible to execute an operation according to the operation. That is, a new disk is inserted, a disk selection operation of the stock unit 3 and a disk selected from the stock unit 3 are pulled into the drive unit 50 and clamped.
[0128]
If it is determined in ST44 that the disc has been clamped in the drive unit 50 before or just before, it is determined that the disc is present on the turntable 54. At this time, the distance Wx between the guide member 11 and the transport unit 20 is set to a dimension that allows the disc to be sandwiched, and the state in which the disc is sandwiched between the guide member 11 and the transport unit 20 is maintained. Further, in ST46, the drive chassis 51 is lowered, and the clamp between the turntable 54 and the clamper 56 is released.
[0129]
Then, the process proceeds to ST47, where the conveying means 20 operates in the unloading direction and the disc is automatically ejected to the insertion slot. Alternatively, “error” is displayed on the display means, the operation is stopped as it is, and after that, only the operation of the discharge operation button is accepted and no other operation is accepted. When the ejection operation is performed, the conveying means operates to eject the disc. Alternatively, when any one of the operation buttons provided on the nose portion or the like is operated, the operation can be performed so as to shift to the disk ejection process regardless of the operation.
[0130]
In this way, when a holding error occurs, the state where the disk is held between the guide member 11 and the conveying means 20 is maintained, and only the disk discharging operation can be performed. Can be high. For example, even when the first detection switch 31 and the second detection switch 32 are inoperable due to a failure, the disk is always ejected without being left in the apparatus.
[0131]
Therefore, when the first detection switch 31 and the second detection switch 32 are out of order, the disk holder 41 of the stock unit 3 is sequentially moved to the selection position 41A by performing the processing operation of FIG. The operation of emptying the stock unit 3 by sequentially discharging the discs held in the disc holders 41 to the insertion slot is also possible.
[0132]
【The invention's effect】
As described above, according to the present invention, in the disk device in which the disk is sandwiched and conveyed by the guiding means and the conveying means, it is not detected that the disk has reached a clampable position, or the disk being clamped If the detection is not normally performed when the guide unit and the transport unit are sandwiched, the disc is sandwiched between the guide unit and the transport unit and the process proceeds to error processing. It is possible to prevent the disc from remaining in the apparatus.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of a disk device of the present invention,
FIG. 2 is a plan view of the disk device;
3 is a cross-sectional view taken along line III-III in FIG.
FIG. 4 is a cross-sectional view showing a state in which the rotation driving means is pressed against the disc;
FIG. 5 is a cross-sectional view showing the relationship between the guide groove of the guide member and the detection switch;
FIG. 6 is a plan view showing the relationship between a large-diameter disk and a small-diameter disk, and a first detection switch and a second detection switch;
FIG. 7 is a plan view showing a relationship between a large-diameter disk to be conveyed and a detection switch;
FIG. 8 is a flowchart of a control operation for detecting whether or not the disc conveyed from the insertion slot is normally clamped;
FIGS. 9A and 9B are flowcharts showing an excerpt of a part of a control operation for detecting whether or not the disc conveyed from the stock unit is normally clamped;
FIG. 10 is a flowchart showing a control operation when the disc clamped on the turntable is sandwiched between the guide member and the transport unit;
[Explanation of symbols]
1 Disk unit
3 Stock Department
5 Disc transport section
6 First moving member
7 Second moving member
8 Connecting gear (space setting means)
11 Guide member (guide means)
11a Guide groove
20 Transport means
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
62 memory
D Large diameter disc
D1 center hole
Ds small diameter disc

Claims (8)

Guide means for guiding one edge of the disk, transport means for facing the guide means and applying a transfer force to the other edge of the disk, and an interval for changing the facing distance between the guide means and the transport means Setting means, and rotation driving means for clamping the disk conveyed by the conveying means,
At least one of the guide means and the transport means is provided with detection means for detecting that the disk has reached a position that can be clamped by the rotation drive means,
When the disk is clamped by the rotation drive means, the guide means and the transport means are separated from the edge of the disk, and after the drive of the disk is finished, the distance between the guide means and the transport means is reduced. The interval setting means is operated so that the disk can be clamped, and when the disk is not detected by the detection means in this clamping operation, an operation error occurs while the disk is clamped by the guide means and the transport means. A disc device characterized by comprising a control means for recognizing and subsequently allowing the disc to be ejected by the conveying means. Wherein when the disk is not detected by the detection means, with reference to the operation history, the disk is the operational error that recognizes claim 1 disk drive according to the time elapsed, which is clamped on the turntable was present. The detection means has two detection switches, and when the disk reaches the clampable position, an interval between the two detection switches is set so that the two detection switches operate together. the two when both detection switch does not detect the disk, the disk apparatus according to claim 1 or 2, wherein it is recognized that the operation error. When it recognizes the said operation error, without waiting for operation from outside, the disk device according to any one of claims 1 to 3 wherein the transport means is operated to automatically eject direction. When it recognizes the said operation error, and stops operation, accepts only the operation command of the discharge operation portion, the disk apparatus according to any one of 3 claims 1 to not accept other operations. When it recognizes the said operation error, and stops operation, when one of the plurality of operation portions is operated, the disk device according to any one of claims 1 to operate the conveying means to the discharge direction 3 . The disk apparatus according to any one of the inserted disc from the insertion opening of the apparatus claims 1 and is clamped is transferred to the rotary drive means being conveyed by said conveying means 6. Stock portion is provided for accommodating a plurality of disks inside the device, according to any one of the disks in the stock portion claims 1 is clamped is transferred to the rotary drive means being conveyed by said conveying means 6 Disk unit.

Images