JP2010102770A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk device capable of ejecting both of a disk carried in or ejected and another new disk when the another disk is inserted from an insertion port during carrying-in or ejection of the disk, and preventing the remaining of the disk in a casing. <P>SOLUTION: When a disk outer periphery detection member detects a disk twice during carrying-in or carrying-out of a disk, after ejection of one disk, in step ST22, whether another disk is present in the casing is checked by using optical detection elements F1 and F2. When the optical detection elements F1 and F2 detects a disk, determining the remaining of a disk in the casing, the processing proceeds to step ST26 to eject the disk. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a disk device in which a disk inserted from an insertion port of a housing is transferred to a loading completion position by a transport mechanism, and a disk at a loading completion position is ejected from the insertion port by a transport mechanism. The present invention relates to a disk device capable of detecting that a disk has been double inserted.

  In a disk device for in-vehicle use, a slit-like insertion port is opened on the front surface of a housing, and a transport mechanism having a transfer roller is provided inside the insertion port. The disc inserted from the insertion port is transferred to the inside of the casing by the rotational force of the transfer roller, and is clamped by a rotation driving unit provided inside the casing.

  Alternatively, in the disk storage type disk device described in Patent Document 1, support bodies (tray) each holding a disk are arranged in a casing so as to overlap each other in the thickness direction of the disk. A support selection unit is provided in the casing, and any one of the supports is selected by the support selection unit. The disc inserted from the insertion port is carried into the housing by the transfer roller, and is supplied to and held by the selected support.

In this type of disk device, a sensor and a switch are provided to detect a disk inserted from an insertion slot or a disk in a housing. In the disk device described in Patent Document 2, a plurality of sensors and switches for detecting a disk inserted from an insertion slot are provided in a housing.
JP 2001-307406 A JP 2002-279716 A

  A so-called slot-in type disk device with a slit-shaped insertion slot opened in the housing is the first when another disk is accidentally inserted through the insertion slot while the disk is being carried into the housing. It is possible that the following disk and the subsequent disk are sandwiched by the transport mechanism and carried together toward the inside of the housing. At this time, if the sensor or the switch detects the two disks without interruption, the control unit performs the same control operation as when one disk is loaded, and the preceding disk has already been set in the housing. There is a problem that the carrying mechanism continues the carrying-in operation despite being carried into the position.

  On the other hand, if another disk is accidentally inserted from the insertion slot while the disk is being unloaded from the housing to the insertion slot, and the other disk is pinched by the transport mechanism together with the disk being unloaded, the transfer roller Only one of the disks in contact may be sent out to the insertion slot, and the other disk may be left inside the housing. In this case, when it is detected by a sensor or switch that one of the sent out discs has been removed from the insertion slot, the control unit determines that the disc has been ejected, and the control operation is reset. . Therefore, after that, there are problems such as accepting another disk even when a disk exists in the housing, or starting a selection operation for selecting another disk in the housing. .

  The present invention solves the above-described conventional problems, and when another disk is inserted from the insertion slot during loading or unloading of the disk, the abnormality can be accurately recognized, and all the disks are ejected. An object of the present invention is to provide a disk device capable of coping with the above.

A first aspect of the present invention is a disk device having an insertion port that opens in a housing, and a transport mechanism that transports a disk inserted from the insertion port toward a loading completion position in the housing.
The outer periphery detection member disposed in the middle of the path where the disk inserted from the insertion port reaches the loading completion position and away from the passage line through which the center of the disk passes, and the outer periphery detection member are in the detection state. And a control unit for monitoring whether or not,
The control unit reverses the transport mechanism and shifts to a disc ejection operation when the outer periphery detection member enters a detection state twice after starting the disc carry-in operation. is there.

  The disk device of the present invention detects the double insertion of a disk by using an outer periphery detection member that detects the outer periphery position of the disk. The outer periphery detection member is used to prevent a disk having a diameter smaller than a specified value from entering the inside of the housing by determining whether or not the diameter of the disk inserted from the insertion opening exceeds a predetermined value. The functions are also shared. The control unit monitors the detection operation of the outer periphery detection member, and determines that it is a double insertion of the disk if the detection state is detected twice during the disk insertion operation. By this determination, it is possible to recognize the double insertion of the disk with a high probability, and to shift to the operation of immediately ejecting the disk.

  In the first aspect of the present invention, after the disk unloading operation is completed, an operation for confirming whether another disk remains in the housing is performed.

  By performing this confirmation operation, it is possible to more reliably prevent the phenomenon that the disk remains inside the housing when double insertion is performed.

According to a second aspect of the present invention, there is provided a disc device having an insertion port that opens in the housing, and a transport mechanism that transports the disc at the loading completion position in the housing toward the insertion port.
The outer periphery detection member disposed in the middle of the path from the loading completion position to the insertion port and away from the passage line through which the center of the disk passes, and whether or not the outer periphery detection member is in a detection state And a control unit for monitoring
The control unit completes the disk unloading operation when the outer periphery detection member enters the detection state twice after starting the disk unloading operation, and after that, another disk is placed in the housing. It is characterized in that an operation for checking whether or not it remains is performed.

  In the second aspect of the present invention, it is possible to confirm whether or not two discs have been carried out when another disc is inserted from the insertion slot while the disc is being carried out.

  In the first invention and the second invention, it is preferable that the carry-out operation is performed again when it is detected by the confirmation operation that another disk remains in the housing.

With the above control, two discs can be reliably unloaded when double insertion occurs.
In the present invention, the confirmation operation is performed using a detection member other than the outer periphery detection member.

For example, an insertion port side detection member that detects that the disk has been taken out of the housing is provided inside the insertion port,
The insertion port side detection member is used as the other detection member, and the insertion port side detection member performs a detection operation as to whether or not another disk remains in the housing.

  In this case, the insertion port side detection member is mounted on the moving unit, and in the confirmation operation, the insertion port side detection member moves together with the unit from the insertion port side toward the loading completion position. It is preferable to do.

Alternatively, in the present invention, a loading completion detection member for detecting a disk is provided at the loading completion position.
The loading completion detection member may be used as the other detection member, and the loading completion detection member may detect whether or not another disk remains in the housing.

  The disk device of the present invention can detect with high accuracy that double insertion has been performed when another disk is inserted from the insertion slot during loading or unloading of the disk. Further, after determining that the double insertion has been performed, it is possible to reliably eject the two disks to be ejected and return the control operation of the disk device to a normal state.

  1 is an exploded perspective view showing the overall structure of the disk apparatus of the present invention, FIGS. 2 and 3 are plan views showing the structure of the second power transmission unit by operation, FIG. 4 is a partial perspective view of the transfer unit, and FIG. FIG. 5 is a plan view showing various detection mechanisms mounted on the disk device. FIG. 6 and subsequent figures are diagrams for explaining the operation, and FIG. 11 is a circuit block diagram.

  A disk device 1 shown in FIG. 1 has a box-shaped housing 2. In FIG. 1, the reference direction of the housing 2 is the lower side on the Z1 side, the upper side on the Z2 side, the left side on the X1 side, the right side on the X2 side, the front side on the Y1 side, and the rear side on the Y2 side. Also, the X1-X2 direction shown in the figure is the horizontal direction, and the Y1-Y2 direction is the depth direction (front-rear direction).

  The housing 2 is assembled by sequentially stacking a lower housing 3, an intermediate housing 4, and an upper housing 5 from the bottom to the top. The lower housing 3 has a bottom surface 6 of the housing 2, and the intermediate housing 4 has a front surface 7 and a right side surface 8 of the housing 2. The upper housing 5 has a left side surface 9, a rear surface 10, and a ceiling surface 11 of the housing 2.

  A first power transmission unit 12 is provided on the upper surface of the bottom surface 6 of the lower housing 3. A unit support base 13 is supported on the first power transmission unit 12, and a drive unit 14 is mounted on the unit support base 13. A mechanism base 15 parallel to the bottom surface 6 is provided on the upper portion of the intermediate casing 4, and a second power transmission unit 16 is provided on the mechanism base 15.

  In the upper housing 5, an area surrounded by the left side surface 9, the rear surface 10, and the ceiling surface 11 is a disk storage area 20, and a plurality of support bodies 21 each capable of supporting the disk D in the disk storage area 20. Are stacked in the thickness direction (Z1-Z2 direction in the figure). The upper casing 5 is provided with a support body selection means 22, and by the operation of the support body selection means 22, any one of the 6 support bodies 21 is selected and moved to the selected position, and is selected. The space | interval of the support body 21 and the support body 21 adjacent under it is expanded.

  The disk D has a diameter of 12 cm and is, for example, a CD (compact disk), a CD-ROM, a DVD (digital versatile disk), or the like.

  As shown in FIG. 1, an insertion port 23 is opened on the front surface 7 of the housing 2. The insertion slot 23 has a slit shape, and the width dimension in the vertical direction is slightly larger than the thickness dimension of the disk D, and the opening width dimension W in the horizontal direction is slightly wider than the diameter of the disk D.

  The intermediate casing 4 is provided with a transfer unit 17 below the mechanism base 15 and inside the front surface 7. As shown in FIGS. 1 and 4, a third power transmission portion 19 is provided between the end portion on the X1 side of the transfer unit 17 and the bottom surface 6 of the lower housing 3. The third power transmission unit 19 functions as roller driving means.

  The transfer unit 17 is at the same height as the insertion slot 23, and the disk D inserted from the insertion slot 23 is transferred toward the disk storage area 20 by the transfer unit 17. Of the plurality of supports 21, the support 21 that has reached the selected position is at the same height as the insertion slot 23, and the disk D inserted from the insertion slot 23 is transferred by the transfer unit 17 and selected. It is supplied and held on the lower surface of the support 21 in the position. In this embodiment, the loading completion position of the disk D is when the disk D is held on the support 21 at the selected position.

  As shown in FIG. 1, dampers 71, 72, and 73 that are elastic support members are fixed to three locations on the bottom surface 6 of the lower housing 3. The dampers 71, 72, 73 are such that a liquid or gas such as oil is enclosed in a flexible bag body such as rubber.

  A support shaft is vertically fixed downward on the bottom surface of the unit support base 13, and each support shaft is supported by dampers 71, 72, 73. The unit support base 13 is provided with each damper 71, 72, 73. Thus, it can be elastically supported on the bottom surface 6 of the housing 2.

  As shown in FIG. 1, the drive unit 14 has an elongated drive base 81. A support shaft 84 protrudes vertically upward from the back side of the unit support base 13, the drive base 81 is supported by the support shaft 84, and the drive unit 14 is rotatable along the XY plane. Yes.

  A first motor M <b> 1 (see FIG. 11) that operates the first power transmission unit 12 is provided on the upper surface of the bottom surface 6 of the lower housing 3. In the first power transmission unit 12, the power of the first motor M1 is transmitted to the rack member 87 via the pinion gear 85, and the rack member 87 moves in the Y1-Y2 direction. The moving force of the rack member 87 in the Y1 direction is transmitted to the unit driving member 89. The unit drive member 89 is provided with a drive pin 88 standing in the Z2 direction. When the drive pin 88 moves in the Y1 direction together with the rack member 87 and the unit drive member 89, the drive unit 14 is moved from the retracted position indicated by the dotted line in FIG. 6 to the solid line in FIG. It is turned to the indicated intervention position.

  As shown in FIG. 1, a rotation drive unit 82 is provided on the rotation free end side of the drive unit 14. In the rotation drive unit 82, a spindle motor is fixed to the upper surface of the drive base 81 on the rotation free end side, and a rotary table 86 is fixed to the motor shaft of the spindle motor. The rotary table 86 is integrally formed with a disk-shaped support surface 86a on which the lower surface of the disk D is installed, and a convex portion 86b that protrudes upward from the center of the support surface 86a and intervenes in the center hole of the disk D. Has been. The drive base 81 is provided with an optical head 83, and an objective lens 83 a is provided on the upper surface of the optical head 83. The optical head 83 is guided and moved by a pair of guide members (not shown) arranged in parallel to each other. At this time, the objective lens 83a moves along the recording surface of the disk D supported by the rotary table 86. .

  In the second power transmission unit 16 shown in FIGS. 2 and 3, an arc-shaped switching member 91 is provided on the mechanism base 15. The switching member 91 is formed with a pair of guide elongated holes 91a and 91a extending along an arc locus. On the mechanism base 15, a pair of guide shafts 92, 92 are projected and fixed upward, and the respective guide shafts 92 are inserted into the guide long holes 91a. By this support mechanism, the switching member 91 is slidably guided in the direction (d) and the direction (e) shown in the figure along the arc locus. In addition, rack teeth 91b are formed along the arc locus on the outer peripheral edge of the switching member 91.

  A second motor M2 is provided on the mechanism base 15. A worm gear 93 is fixed to the rotation shaft of the second motor M2. An output gear 94 is provided on the mechanism base 15, and the output gear 94 always meshes with the worm gear 93.

  The rotational power of the second motor M2 is decelerated and transmitted from the output gear 94 to the pinion gear 97 via the gears 95 and 96. The pinion gear 97 always meshes with the rack teeth 91b of the switching member 91.

  A transmission gear 99 and a switching gear 98 are provided on the side of the output gear 94. On the mechanism base 15, switching means (not shown) is provided for switching the switching gear 98 between a position where the switching gear 98 meshes with both the output gear 94 and the transmission gear 99 and a position away from the transmission gear 99. This switching means is operated by the power of the first motor M1 provided in the first power transmission unit 12. When the switching gear 98 meshes with both the output gear 94 and the transmission gear 99, the power of the second motor M2 is transmitted to the support selection means 22 shown in FIG.

  Below the mechanism base 15, a transfer unit 17 that functions as a disk transport mechanism is provided. The transfer unit 17 has a metal unit frame 100 that is elongated in the X1-X2 direction shown in the drawing.

  As shown in FIG. 4, the unit frame 100 has an upper surface 101, a lower surface 102, a fulcrum side surface 103, and a free end side surface, and the inside of the unit frame 100 penetrates in the Y1-Y2 direction shown in the figure. Inside the unit frame 100, a sliding member 105 made of a synthetic resin having a low friction coefficient is provided. The sliding member 105 is positioned inside the clamping portion 106 extending along the inner surface of the upper surface 101 of the unit frame 100, the side guide portion 107 positioned inside the side surface 103 on the fulcrum side, and the side surface on the free end side. And a side guide part. The facing distance between the side guide portions is wider than the diameter of the disk D and is substantially the same as or slightly wider than the opening width of the insertion slot 23.

  As shown in FIG. 4, in the transfer unit 17, a roller shaft 111 is provided in the unit frame 100. The roller shaft 111 extends parallel to the upper surface 101 of the unit frame 100, and both ends thereof are rotatably supported by the side surface 103 on the fulcrum side and the side surface on the free end side. As shown in FIGS. 4 and 5, a first transfer roller 112 and a second transfer roller 113 formed of a material having a high friction coefficient such as synthetic rubber or natural rubber are provided on the outer periphery of the roller shaft 111. ing. The transfer roller 112 and the transfer roller 113 are arranged at an interval in the axial direction. When the transfer unit 17 is in the standby position shown in FIGS. 2 and 6, the transfer rollers 112 and 113 are disposed substantially parallel to the front surface 7 of the housing 2 and at a distance equidistant from the disc insertion center to the left and right. ing.

  An intermediate portion 114 positioned between the first transfer roller 112 and the second transfer roller 113 is a portion that does not substantially apply a transfer force to the disk D. The intermediate portion 114 is formed by directly exposing the roller shaft 111.

  The first transfer roller 112 and the second transfer roller 113 are opposed to the sandwiching portion 106 of the sliding member 105. At least one of the transfer rollers 112 and 113 and the clamping unit 106 is biased by a spring, and the transfer rollers 112 and 113 and the clamping unit 106 are elastically pressed against each other. Therefore, the disk D can be clamped by the transfer roller 112 and the clamping unit 106, and the transfer roller 113 and the clamping unit 106. In this pressure contact state, the gap between the intermediate portion 114 and the sandwiching portion 106 is wider than the thickness dimension of the disc D, and the disc D is sandwiched between the intermediate portion 114 and the sandwiching portion 106. Absent.

  The first transfer roller 112 and the second transfer roller 113 are rotatably inserted into the outer periphery of the roller shaft 111 without adhering to the outer periphery of the roller shaft 111. When the clamping pressure with respect to the disk D is acting on the transfer rollers 112 and 113, the frictional force between the transfer rollers 112 and 113 and the roller shaft 111 increases, and the roller shaft 111 and the transfer rollers 112 and 113 are integrated. Rotate. Further, when a large resistance force is applied to the disc D to be transported, such as when the disc D being clamped is gripped by a human finger, the roller shaft 111 can be slip-rotated with respect to the transport rollers 112 and 113. It is configured.

  As shown in FIGS. 1 and 4, the fulcrum shaft 131 serving as the pivot fulcrum of the transfer unit 17 is fixed on the bottom surface 6 of the lower housing 3 so as to extend vertically upward. As shown in FIG. 4, the transfer unit 17 is provided with a bearing portion 125 extending in a direction orthogonal to the roller shaft 111 at the end portion on the X1 side in the drawing, and the bearing portion 125 is rotatable about the fulcrum shaft 131. It is supported.

  As shown in FIGS. 2 and 3, a drive pin 121 protruding in the Z2 direction from the upper surface of the unit frame 100 is fixed to the Y2 side end of the transfer unit 17. The mechanism base 15 has a guide elongated hole 15a formed along an arc locus centered on the fulcrum shaft 131. The drive pin 121 passes through the guide elongated hole 15a and moves upward of the mechanism base 15. It protrudes.

  The second power transmission unit 16 is provided on the mechanism base 15 with a rotating lever 122 that rotates about a shaft 123 as a fulcrum. The rotation lever 122 is positioned between the mechanism base 15 and the switching member 91. A drive slot 122a is opened in the rotation lever 122, and the drive pin 121 is slidably inserted into the drive slot 122a.

  As shown in FIGS. 2 and 3, a switching cam hole 124 is formed in the switching member 91. A control pin 126 is fixed on the upper surface of the rotating lever 122 between the shaft 123 and the drive elongated hole 122a. The control pin 126 is slidably inserted into the switching cam hole 124.

  In the switching cam hole 124, an escape portion 124a extending along an arc locus that is a movement locus of the switching member 91, and a drive portion 124b bent in the X1 direction from the end on the (d) side of the escape portion 124a are integrated. Is formed.

  In the second power transmission unit 16, the escape portion 124 a of the switching cam hole 124 is controlled in the first half of the moving stroke in which the switching member 91 moves in the direction (e) from the state where the switching member 91 is positioned at the (d) side movement start end. In order to slide with the pin 126, the transfer unit 17 is stopped at the standby position. As shown in FIGS. 2 and 6, in the standby position, the unit frame 100 is positioned inside the front surface 7 of the housing 2, and the roller shaft 111 extends substantially in the X1-X2 direction. Further, in the transfer unit 17 in the standby position, the unit frame 100 is slightly separated from the outer peripheral edge of the disk D supported by the support body 21 in the Y1 direction.

  When the switching member 91 is further rotated in the (e) direction from the position shown in FIG. 2, the control pin 126 is pushed in the (e) direction by the drive portion 124b of the switching cam hole 124, as shown in FIGS. As described above, the transfer unit 17 rotates counterclockwise from the standby position to reach the transfer operation position.

  As shown in FIGS. 1 and 4, in the third power transmission unit 19, the integrated gear 141 is rotatably inserted below the fulcrum shaft 131 fixed to the bottom surface 6 of the lower housing 3. The integral gear 141 is a worm gear 141a whose upper part extends vertically, and the lower part is a lower gear 141b. As shown in FIG. 1, an intermediate gear 142 is rotatably provided on the bottom surface 6, and the intermediate gear 142 meshes with the lower gear 141b. A third motor M <b> 3 (see FIG. 11) is provided on the bottom surface 6, and a worm gear fixed to the rotation shaft meshes with the intermediate gear 142.

  As shown in FIG. 4, the transfer unit 17 has one end of the roller shaft 111 protruding outward from the side surface 103 on the fulcrum side of the unit frame 100, and a spur gear at the end of the roller shaft 111 protruding from the side surface 103. The roller gear 144 is fixed. A shaft 145 is fixed to the side surface 103, and an integral gear 146 is rotatably supported on the shaft 145. The integral gear 146 is formed by integrating a small-diameter spur gear 146 a and a large-diameter spur gear 146 b, and the small-diameter spur gear 146 a meshes with the roller gear 144.

  A support piece 102a protruding downward is integrally formed on the lower surface 102 of the unit frame 100, and a shaft 148 is fixed to the support piece 102a. The shaft 148 extends in parallel with the roller shaft 111. An integral gear 147 is rotatably supported on the shaft 148. The integral gear 147 is an integral of a spur gear 147a and a worm wheel 147b. Spur gear 147a meshes with large-diameter spur gear 146b.

  The worm wheel 147b and the worm gear 141a mesh with each other in a state where the bearing portion 125 provided in the transfer unit 17 is rotatably inserted into the fulcrum shaft 131. The rotational power of the third motor M3 is transmitted from the intermediate gear 142 to the lower gear 141b and the worm gear 141a, and further transmitted from the worm gear 141a to the worm wheel 147b. The power is transmitted from the spur gear 147 a to the large-diameter spur gear 146 b of the integrated gear 146 and further transmitted from the small-diameter spur gear 146 a to the roller gear 144.

  Since the rotational power of the third motor M3 is transmitted to the roller gear 144 via the integral gear 141 that rotates coaxially with the fulcrum shaft 131, the transfer unit 17 is moved from the standby position to the transfer operation position with the fulcrum shaft 131 as a fulcrum. The roller shaft 111 can be driven independently of the operation of rotating to the right.

  As shown in FIGS. 2 and 3, on the mechanism base 15, a sliding detection means 300 for detecting the sliding position of the switching member 91 is provided.

  The sliding detection means 300 includes a detection substrate 301A, and detection switches (detection members) T1, T2, T3, and T4 are attached to the detection substrate 301A. Attachment portions 7a and 7b bent from the front surface 7 of the housing 2 to the Y2 side in the figure are provided, and the detection substrate 301A is fixed to the attachment portions 7a and 7b with screws. The detection board 301A is a printed board, and a predetermined wiring pattern is formed on the surface thereof by screen printing or the like. Operation signals of the detection switches T1 to T4 are given to a control unit 401 (see FIG. 11) such as a CPU through a wiring pattern. The detection switches T1, T2, T3, and T4 have pressing actuators T11, T21, T31, and T41 protruding in the Y2 direction.

  A detection cam 302 extending along the arc shape is fixed to the upper surface of the switching member 91, and the detection cam 302 moves along the arc path along the arc path in the (d)-(e) direction.

  When the switching member 91 is at the end of movement in the direction (d), all the actuators T11 to T41 are pushed by the detection cam 302, and the detection switches T1, T2, T3, and T4 are all ON. When the switching member 91 moves from the movement end in the (d) direction toward the (e) direction, the detection cam 302 is sequentially separated from the actuators T11, T21, T31, T41, and the detection switches are T1, T2, T3, T4. It switches from ON to OFF in this order.

  As shown in FIG. 11, the detection outputs of the detection switches T <b> 1 to T <b> 4 are individually detected by the switch detection circuit 402 and given to the control unit 401. The control unit 401 recognizes that the switching member 91 has reached the movement end in the direction (d) when the detection switch T1 is ON. Thereafter, when the switching member 91 moves in the (e) direction, the transfer unit 17 rotates counterclockwise from the standby position shown in FIGS. 2 and 6 when the detection switch T2 is turned from ON to OFF. When the detection switch T3 is turned from ON to OFF, it is recognized that the transfer unit 17 has reached the transfer operation position shown in FIGS. When the detection switch T4 is turned from ON to OFF, it is determined that the switching member 91 has reached the movement end in the direction (e).

  In the support body selection means 22 provided in the disk storage area 20 shown in FIG. 1, three selection shafts 151 extending downward in parallel with each other are rotatably supported on the ceiling surface 11 of the upper housing 5. Yes. The ceiling surface 11 is provided with a large-diameter gear (not shown) that rotates all the selection shafts 151 synchronously, and the transmission gear 99 shown in FIGS. 2 and 3 meshes with the large-diameter gear. . When the second motor M2 operates when the switching gear 98 is engaged with the output gear 94 and the transmission gear 99 in the second power transmission unit 16, the rotational force is transmitted from the transmission gear 99 to the large-diameter gear, Three selection shafts 151 are driven. During this time, since the escape portion 124a of the switching cam hole 124 formed in the switching member 91 slides with the control pin 126, the transfer unit 17 is not rotated. Conversely, when the rotation lever 122 is driven by the drive portion 124b of the switching cam hole 124 and the transfer unit 17 is rotated, the switching gear 98 is separated from the transmission gear 99, and the power of the second motor M2 is transmitted. It is not transmitted to the gear 99.

  Each of the three selection shafts 151 is formed with a helical selection groove 152, and each selection groove 152 has a dense helical pitch at the upper end and lower end of the selection shaft 151, and an intermediate portion of the selection shaft 151. The spiral pitch is sparse. Each support body 21 is provided with three bearing portions, and each bearing portion is slidably mounted on the outer periphery of the selection shaft 151. And the engaging part provided in the bearing part is slidably inserted in the selection groove 152. When the three selection shafts 151 rotate in synchronization, the respective support bodies 21 are sequentially sent in the Z1 direction or sequentially in the Z2 direction. When the selected support 21 reaches almost the center of the selection shaft 151, the selection operation ends and the second motor M2 stops. At this time, the selected support body 21 stops at the same height position as the insertion port 23, and the interval between the selected support body 21 and the lower support body 21 is widened. Then, the drive unit 14 can enter.

  As shown in FIG. 6, each support 21 is provided with holding claws 155, 156 and 157. The holding claws 155, 156, and 157 are supported so as to be able to rotate around the bearing portion provided on the support 21. The holding claws 155, 156, and 157 are provided on the lower surface of the support 21, and each is biased by a spring toward a posture capable of holding the disc as shown in FIG. The disc D inserted into the insertion slot 23 and transferred by the transfer unit 17 is supplied to the lower surface of the support 21 at the selected position, and is held by the lower surface and the holding claws 155, 156, and 157. The housing 2 is provided with a holding release function. When the center hole Da of the disk D supported by the support 21 at the selected position is clamped to the rotary table 86 of the drive unit 14, the holding release is performed. The holding claws 155, 156, and 157 are rotated to the retracted position by the mechanism, and the holding of the disk D by the support 21 is released.

  A shutter which is a lid member for opening and closing the insertion port 23 is slidably provided inside the front surface 7 of the housing 1. In the range where the escape portion 124a of the switching cam hole 124 formed in the switching member 91 slides on the control pin 126, the switching member 91 moves in the (d)-(e) direction to select the support 21. When the operation is performed, the insertion port 23 is closed by the shutter. When the selected support body 21 moves to the selected position, the switching gear 98 moves away from the transmission gear 99 and the selection operation of the support body 21 is completed. Thereafter, when the switching member 91 moves in the direction (e), Immediately before the drive portion 124b of the switching cam hole 124 engages with the control pin 126, the shutter is driven by the moving force of the switching member 91, and the insertion port 23 is opened.

  As shown in FIG. 5, in the housing 2, detection elements Fe that are loading completion detection members are provided at corners of the left side surface 9 and the rear surface 10. This detection element Fe is provided at only one location in the housing 2 and is disposed at the same height as the support 21 moved to the selected position. The detection element Fe is provided with a light emitting element and a light receiving element facing each other.

  As shown in FIG. 5, the holding claw 156 provided on each support body 21 is integrally formed with an arm portion 202, and a light-shielding portion 203 is provided at the tip thereof. The holding claw 156 is urged clockwise by the spring and rotates clockwise when the disk D is not held. Therefore, when the support 21 that has reached the selected position does not hold the disk D, the light shielding portion 203 intervenes between the light emitting element and the light receiving element, and the light toward the light receiving element is blocked. Further, when the disk D is supplied to the lower surface of the support 21 at the selected position, the holding claw 156 is rotated counterclockwise by the outer peripheral edge of the disk D, and the light shielding portion 203 is located between the light emitting element and the light receiving element. The light receiving element is in a light receiving state.

  As shown in FIG. 11, the detection output of the detection element Fe is detected by the optical detection circuit 403 and given to the control unit 401. The control unit 401 can recognize whether or not the disk D is loaded on the support 21 that has reached the selected position, based on the detection signal from the detection element Fe. Further, when the empty support body 21 is stopped at the selected position, whether or not the disk D inserted from the insertion slot 23 is held by the support body 21, that is, whether or not the disk D has reached the loading completion position. Can recognize whether or not.

  As shown in FIGS. 5 and 6, the unit frame 100 of the transfer unit 17 is provided with a pair of optical detection elements F <b> 1 and F <b> 2 that are insertion port side detection members. The optical detection elements F1 and F2 are provided at equal distances on the X1 side and the X2 side across the center of the dimension of the transfer unit 17 in the X1-X2 direction. That is, as shown in FIG. 6, the optical detection element F1 and the optical detection element F2 are equally spaced from the passage line O through which the center D0 of the disk D inserted from the insertion port 23 passes.

  Each of the optical detection elements F1 and F2 has a light emitting element on one of the upper surface 101 and the lower surface 102 of the unit frame 100 shown in FIG. 4 and a light receiving element on the other. When the disk D does not enter the transfer unit 17, the light from the light emitting element is received by the light receiving element. As shown in FIG. 6, when the disk D is inserted from the insertion port 23, the front end on the Y2 side of the disk D overlaps with the optical detection elements F <b> 1 and F <b> 2 before the disk D hits the transfer rollers 112 and 113. Light to the light receiving element is blocked.

  As shown in FIG. 11, the detection outputs of the optical detection elements F <b> 1 and F <b> 2 are detected by the optical detection circuit 403 and given to the control unit 401. As shown in FIG. 6, when at least one of the optical detection elements F1 and F2 detects the disk when the transfer unit 17 is in the standby position, the control unit 401 recognizes that the disk D has been inserted, and Move to carry-in operation.

  As shown in FIG. 5, a pair of detection members 251 and 252 are provided between the front surface 7 of the housing 2 and the transfer unit 17 at the standby position. The detection members 251 and 252 are detection pins extending vertically, and the detection members 251 and 252 cross the insertion port 23 up and down inside the housing 2. One detection member 251 is fixed to a detection plate 253 extending in the X1-X2 direction, and the other detection member 252 is fixed to a detection plate 254 extending in the X1-X2 direction. The detection plate 253 and the detection plate 254 are movable independently of each other in the X1-X2 direction along the inner surface of the front plate 7 of the housing 2. And the detection plate 253 and the detection plate 254 are urged | biased with the spring in the direction which mutually approaches.

  As shown in FIG. 6, when the disk D is not inserted from the insertion slot 23, the detection member 251 and the detection member 252 are the same distance from the passage line O of the center D0 of the inserted disk D in the X1 direction and the X2 direction. Just away. At this time, the interval between the detection member 251 and the detection member 252 is set to be slightly wider than 8 cm. Therefore, when a small-diameter disk having a diameter of 8 cm is erroneously inserted from the insertion port 23, the detection member 251 and the detection member 252 are not moved away from each other at the same time. When a disk D having a diameter of 12 cm is inserted from the insertion port 23, the outer peripheral edge of the disk D slides with the detection member 251 and the detection member 252, and the detection member 251 and the detection member 252 are separated from the passage line O. Moved away.

  In the housing 2, mechanical operation type detection switches SW 1, SW 3, and SW 4 that are operated by one detection plate 253 and the same mechanical operation type detection switch SW 2 that is operated by the other detection plate 254 are provided. Yes. As shown in FIG. 11, the switching outputs of the detection switches SW 1, SW 2, SW 3, SW 4 are individually detected by the switch detection circuit 402 and given to the control unit 401.

  Before the disc D is inserted from the insertion port 23, the detection member 251 and the detection member 252 are in the initial position closest to each other by the spring. At this time, the detection switch SW1 is switched ON by the detection plate 253, and the detection switch SW2 is switched ON by the detection plate 254.

  When the disk D having a diameter of 12 cm is carried into the housing 2, the detection member 251 is pushed in the X2 direction by the outer peripheral edge of the disk D, the detection member 252 is pushed in the X1 direction, and the detection switches SW1 and SW2 Turns off immediately. The control unit 401 starts the carry-in operation when the optical detection elements F1 and F2 detect the insertion of the disc. By detecting that both the detection switches SW1 and SW2 are turned off within a predetermined time thereafter. Then, it is determined that there is a high probability that a disk D having a diameter of 12 cm, not a small diameter disk having a diameter of 8 cm, is carried in, and the carrying-in operation is continued as it is.

  When a regular disk D having a diameter of 12 cm is loaded, when the center D0 of the disk D reaches the line connecting the detection member 251 and the detection member 252, the detection member 251 is the longest in the X2 direction. The detection switch SW4 is switched from OFF to ON for a short time by the detection plate 253. The control unit 401 detects that the optical detection elements F1 and F2 detect the insertion of the disc, and when the detection switch SW4 is turned ON (disc detection state) for a short time within a predetermined time after the transition to the carry-in operation. It is determined that the probability of being a regular disk having a diameter of 12 cm is higher, and the disk loading operation is continued.

  If the detection switch SW4 is not turned on within the predetermined time, the disk carry-in operation is stopped, the operation shifts to the carry-out operation, and the disk or the like is ejected from the insertion slot 23.

  Therefore, the detection switch SW4 is an outer periphery detection member located at a position farthest from the passing line O through which the center D0 of the inserted disk D passes. In this embodiment, the detection switch SW4 can detect whether or not the disk D is double inserted at the time of carry-in or carry-out.

  When the disk D reaches the loading completion position held on the selected support 21, the disk D is separated from the detection members 251 and 252 and the detection member 251 and the detection member 252 return to the initial positions. Then, the detection switches SW1 and SW2 are switched from OFF to ON again.

  When the disk D in the housing 2 is ejected from the insertion slot 23, the detection member 251 is moved in the X2 direction by the outer peripheral edge of the disk D facing the Y1 side, and the detection member 252 is moved in the X1 direction. . At this time, the detection switches SW1 and SW2 are turned from ON to OFF, and further, in the process of ejecting the disk D, the detection switch SW3 is turned ON and the detection switch SW4 is turned ON for a short time. When the center D0 of the disk D moves to the Y1 side from the line connecting the detection member 251 and the detection member 252, the detection switch SW4 is immediately turned OFF, and when the disk D further moves in the Y1 direction, the detection switch SW3 is turned ON. Switch to OFF.

  In the disk unloading process, the control unit 401 stops the unloading operation when the detection switch SW3 is switched from ON to OFF. By stopping the rotation of the transfer rollers 112 and 113, the disc D can be stopped from being ejected while a part of the disc D is held inside the housing 2.

  As shown in FIG. 11, the detection outputs of the detection switches SW1, SW2, SW3, and SW4 and the detection switches T1, T2, T3, and T4 are individually detected by the switch detection circuit 402 and given to the control unit 401. Further, the detection outputs of the optical detection elements F 1 and F 2 and the detection element Fe are individually detected by the optical detection circuit 403 and given to the control unit 401.

  The motor driver 404 that drives the first motor M1 that is the drive source of the first power transmission unit 12 shown in FIG. A motor driver 405 that drives a second motor M2 that is a power source of the second power transmission unit 16 shown in FIG. 2, and a third motor M3 that is a drive source of the third power transmission unit 19 shown in FIG. Is also controlled by the control unit 401.

Next, the operation of the disk device 1 of the present invention will be described.
FIG. 6 is a plan view showing the disk loading operation, and FIGS. 7 and 8 are flowcharts showing the control flow during the disk loading operation. FIG. 9 is a plan view showing the disc carry-out operation, and FIG. 10 is a flowchart showing the control flow during the disc ejection operation. In the flowcharts shown in FIGS. 7, 8, and 10, the steps of each control operation are indicated by “ST”.

(Disc insertion standby mode)
The home position waiting for the insertion of the disk D is an intervention position where the drive unit 14 intervenes in the disk storage area 20 as indicated by a solid line in FIG. 6, and the transfer unit 17 is located inside the front surface 7 of the housing 2. It is in the standby position along.

  When the operation unit provided on the decorative portion covering the front surface 7 of the housing 2 is operated or the remote controller is operated to specify any one of the plurality of supports 21, the motor driver is operated by the control unit 401. 404 is controlled, the first motor M1 that is the drive source of the first power transmission unit 12 shown in FIG. 1 is started, and the rack member 87 is driven in the Y2 direction. When the rack member 87 and the unit drive member 89 move in the Y2 direction, the drive unit 14 is rotated from the intervention position indicated by the solid line in FIG. 6 to the retracted position indicated by the dotted line by the drive pin 88 provided on the unit drive member 89. Be made.

  And the 2nd motor M2 which is a drive source of the 2nd power transmission part 16 shown in FIG. 2 starts, and the selection operation | movement of the support body 21 is performed. At this time, since the rotational force of the second motor M2 is applied from the output gear 94 to the pinion gear 97 via the gears 95 and 96, the switching member 91 rotates in the (d) direction or the (e) direction. However, at this time, since the control pin 126 provided on the rotation lever 122 slides in the escape portion 124a of the switching cam hole 124, the rotation lever 122 does not move, and the power of the second motor M2 is It is transmitted from the output gear 94 to the transmission gear 99 via the switching gear 98, and the three selection shafts 151 of the support body selection means 22 shown in FIG. 1 are driven.

  When the selection shaft 151 rotates clockwise or counterclockwise, the support body 21 is moved upward or downward by a spiral selection groove 152 formed on the selection shaft 151, and the designated empty support body 21 is moved. Reaches the selected position. When the support body 21 reaches the selection position, the second motor M2 stops and the selection operation of the support body 21 ends. Thereafter, the rack member 87 of the first power transmission unit 12 is moved in the Y1 direction by the power of the first motor M1, and the drive unit 14 is moved from the retracted position indicated by the dotted line in FIG. The home position is set again by rotating to the intervention position indicated by the solid line.

  At this home position, the unit support base 13 is held in a posture lowered so as to approach the bottom surface 6 of the housing 2. Therefore, the rotation drive unit 82 of the drive unit 14 mounted on the unit support base 13 is stopped at a position away from the support 21 at the selected position.

  In addition, when the switching member 91 moves in the (d)-(e) direction and the selection operation of the support 21 is performed, the insertion port 23 is closed by the shutter. After the designated support body 21 has moved to the selected position, the switching gear 98 shown in FIG. 2 is separated from the transmission gear 99 and the power to the support body selection means 22 is cut off. Then, the switching member is moved by the second motor M2. 91 is driven in the direction (e). At this time, when the control pin 126 reaches the end of the escape portion 124a of the switching cam hole 124 on the (d) side and the detection switch T2 is switched from ON to OFF, the shutter is moved by the switching member 91. The insertion port 23 is opened.

  Further, before the disc D is inserted, the detection member 251 and the detection member 252 are set to an initial position where they are closest to each other by the force of the spring. At this time, the detection switch SW1 is switched ON by the detection plate 253 and the detection switch SW2 is switched ON by the detection plate 254, but both the detection switches SW3 and SW4 are OFF.

(Normal disk loading operation)
In ST1 of FIG. 7, when the disc D is inserted from the insertion port 23, the peripheral portion facing the Y2 of the disc D is the first transfer roller 112 and the second transfer roller as shown by (ii) in FIG. Before hitting 113, the optical detection elements F1 and F2 are blocked by the disk D. In ST2, when at least one of the detection outputs of the optical detection element F1 and the optical detection element F2 is switched from ON to OFF, the process proceeds to ST3, and the disk D loading operation is started.

  In the disk loading operation of ST3, first, the motor driver 406 is controlled, the third motor M3 is started, and the roller shaft 111 is rotated in the disk loading direction. When the disk D is further pushed in the Y2 direction from the position indicated by (ii) in FIG. 6, the disk D is interposed between the first transfer roller 112 and the second transfer roller 113 and the clamping unit 106 shown in FIG. The disc D is carried in the Y2 direction by the rotational force of the transfer rollers 112 and 113.

  If the disc D having a diameter of 8 cm or more is carried in, the detection member 251 is pushed in the X2 direction and the detection member 252 is pushed in the X1 direction by the outer peripheral edge of the disc D in ST4. Both switches SW1 and SW2 are switched from ON to OFF. When the control unit 401 can confirm that both the detection switches SW1 and SW2 are turned off, the control unit 401 continues to drive the third motor M3. If the disk D continues to be carried into the housing 2, the detection member 251 is further pushed in the X2 direction at the outer periphery of the disk D, and the detection switch SW3 is switched from OFF to ON in ST5, and further in ST6. Then, the detection switch SW4 that is the outer periphery detection member is switched from OFF to ON.

  If the detection switch SW4 is switched from OFF to ON before a predetermined time elapses after the insertion of the disk D is detected by the optical detection elements F1 and F2, the control unit 401 is loaded with a diameter of 12 cm. It is determined that the probability of being a regular disk D is high, and the process proceeds to ST7. If the detection switches SW1 and SW2 are not turned off in ST4 before a predetermined time has elapsed since the insertion of the disk D was detected by the optical detection elements F1 and F2, the third motor M3 is reversed. Then, the disk D is carried out toward the insertion port 23. Also, when the detection switch SW4 is not turned ON in ST6 within a predetermined time, the third motor M3 is reversely rotated and the disk D is carried out.

  In ST7, a command is given from the control unit 401 to the motor driver 405, and the second motor M2 of the second power transmission unit 16 is started. The switching member 91 shown in FIG. 2 is moved in the (e) direction by the second motor M2, and the rotating lever 122 is rotated counterclockwise by the drive portion 124b of the switching cam hole 124 of the switching member 91. Therefore, the transfer unit 17 which has been in the standby position until then is rotated toward the transfer operation position shown in FIG. As the disc D is carried in, the detection member 251 slides on the outer peripheral edge of the disc D by the spring force and returns in the X1 direction, so that the detection switch SW4 that was turned on in ST6 is immediately turned off. Switch.

  Thereafter, in ST8, the control unit 401 monitors whether or not the detection switch SW4 that is the outer periphery detection member is switched from OFF to ON again. When the detection switch SW4 is not turned on for the second time, the process proceeds to ST9 and the normal carry-in operation is continued.

  In ST9, it is confirmed whether or not the detection switch T3 is switched from ON to OFF within a predetermined time after the optical detection elements F1 and F2 detect the insertion of the disk D. When the loading operation of the disk D continues and the switching member 91 of the second power transmission unit 16 moves in the direction (e) by the power of the second motor M2, the transfer unit 17 performs the transfer operation as shown in FIG. At this time, the detection cam 302 is separated from the actuator T31, and the detection switch SW3 is switched from ON to OFF. When the detection switch SW3 is switched from ON to OFF, the control unit 401 proceeds to ST10 and stops the second motor M2.

  While the transfer unit 17 rotates counterclockwise, the roller shaft 111 is rotated in the disk loading direction by the third motor M3. Therefore, the disk D is fed into the housing 2 by both the rotational force of the transfer unit 17 and the rotational force of the transfer rollers 112 and 113, and when the transfer unit 17 reaches the transfer operation position shown in FIG. The disk D is supplied to the lower surface of the support 21 at the selected position and becomes the loading completion position.

  When the normal disk D moves to the lower surface of the support 21 at the selected position and shifts to the loading completion position, the disk D moves between the lower surface of the support 21 and the three holding claws 155, 156, and 157 shown in FIG. 5 and the holding claw 156 shown in FIG. 5 is pushed counterclockwise by the outer peripheral edge of the disk D, the light shielding portion 203 comes out of the detecting element Fe, and the light receiving element of the detecting element Fe is in the light receiving state (ON ). When the output of the detection element Fe is switched ON in ST11, the control unit 401 determines that the disk D has moved to the loading completion position, moves to ST12, stops the third motor M3, and stops the disk D. Complete the loading operation.

  Thereafter, the unit support base 13 is lifted, the drive unit 14 is raised, and the central convex portion 86b of the rotary table 86 of the rotary drive unit 82 is fitted into the central hole Da of the disk D held by the support 21 at the selected position. The center hole Da is clamped to the rotary table 86. Then, the second motor M2 reversely rotates and the switching member 91 shown in FIG. 3 is moved in the (d) direction. At the same time, the third motor M3 is started and the roller shaft 111 is rotated in the disk loading direction. Therefore, while the transfer rollers 112 and 113 roll on the surface of the disk D, the transfer unit 17 rotates clockwise and returns to the standby position shown in FIG. At this time, the shutter is operated by the switching member 91 and the insertion port 23 is closed.

  Then, the holding claws 155, 156, and 157 shown in FIG. 6 are rotated by the holding release mechanism, and the holding of the disk D on the lower surface of the support 21 is released. Further, the unit support base 13 is lowered, the drive unit 14 is lowered toward the bottom surface 6, and the disk D held on the rotary table 86 is separated from the lower surface of the support 21 at the selected position. Then, the disk D is rotationally driven together with the rotary table 86, and information recorded on the disk D is reproduced by the optical head 83, or information is recorded on the disk D.

(Double insertion during loading)
In ST8 of FIG. 7, when the detection switch SW4 is switched from OFF to ON again, the process proceeds to ST13.

  During the disk loading operation, the reason why the detection switch SW4 is turned OFF-ON twice is the double insertion of the disk. While the transfer unit 17 is rotated toward the transfer operation position and the disk D is being carried toward the support 21, another disk D 1 is inserted from the insertion port 23 into the housing 2 as shown in FIG. Is inserted into the housing 2, another disk D 1 is carried into the housing 2 together with the preceding disk D by the transfer rollers 112 and 113, and the detection member 251 is again moved in the X 2 direction by the outer peripheral edge of the disk D 1. The detection switch SW4 is switched from OFF to ON again by the detection plate 253.

  At this time, the control unit 401 determines that a conveyance abnormality has occurred, moves to ST13, and moves to a disk carry-out operation. In ST13, the third motor M3 is rotated in the reverse direction to rotate the transfer rollers 112 and 113 in the disk carry-out direction, and at the same time, the second motor M2 is rotated in the reverse direction to move the switching member 91 in the (d) direction. The transfer unit 17 is rotated clockwise toward the standby position.

  When the detection switch T2 is switched from OFF to ON in ST14, the control unit 401 determines that the transfer unit 17 has moved to the standby position as shown in FIG. 2, and stops the second motor M2 in ST15. Then, the rotation of the transfer unit 17 in the clockwise direction is stopped.

  Thereafter, in ST16, it is monitored whether the detection switch SW3 is switched from ON to OFF. When the disc is unloaded, at least one disc is unloaded toward the insertion slot 23 and its center moves to the Y1 side from the line connecting the detection member 251 and the detection member 252. Thereafter, the outer peripheral edge of the disc is moved. The sliding detection member 251 returns to the X1 direction by the spring force, the detection plate 253 is detached from the detection switch SW3, and the detection switch SW3 is turned from ON to OFF. At this time, the process proceeds to ST17, where the third motor M3 is stopped and the rotation of the roller shaft 111 is stopped. As a result, at least one disk stops at a position where a part of the disk protrudes from the insertion port 23 to the outside.

  In ST13, when the detection switch T2 does not turn on in ST14 within a predetermined time after the start of the carry-out operation, or in ST13, the detection switch SW3 is set in ST16 within a predetermined time after the carry-out operation is started. If it is not switched to OFF, it is determined that the unloading operation is abnormal, and the unloading operation is stopped, or a retry process is performed in which the disk is sent again into the housing and then the operation is shifted to the discharging operation.

  The control unit 401 stops the third motor M3 in ST17 and ends the carry-out operation, and then monitors the detection outputs of the optical detection elements F1 and F2 in ST18. When the rotation of the roller shaft 111 is stopped in ST17, at least one disk is stopped with a part of the disk protruding from the insertion port 23, so the optical detection elements F1 and F2 detect the disk. ing. When this disk is pulled out of the housing 2 from the insertion port 23, the optical detection elements F1 and F2 are in a state of not detecting the disk.

  When the optical detection elements F1 and F2 do not detect the disk in ST18, the control unit 401 determines that at least one disk has been taken out of the housing 2.

  However, as shown in FIG. 9, when the transfer rollers 112 and 113 are rotated in the disk unloading direction when two disks are held between the transfer rollers 112 and 113 and the holding unit 106, the transfer roller 112. , 113 acts on the lower disk in contact with 113, but the carry-out power does not act directly on the upper disk in contact with the clamping unit 106. Therefore, at ST17, there is a possibility that only the lower disk moves to the unloading completion position, and the upper disk remains in the housing 2.

  Therefore, when the control unit 401 proceeds to ST18 after passing through ST8, the control unit 401 checks the detection state of other detection switches and optical detection elements, and checks whether or not the disk still remains in the housing 2. To perform the operation.

  In this inspection operation, first, the detection state of the detection element Fe shown in FIG. 5 is confirmed. If the light receiving element of the detecting element Fe is detecting light, one disk remains on the support 21 at the selected position, and the holding claw 156 is rotated counterclockwise by the disk D. I can judge. Even when the disk is taken out in ST8, the detection members 251 and 252 shown in FIG. 5 cannot return to the initial positions and the detection switches SW1 and SW2 are not turned ON. It is determined that there is a disc inside. If it is determined that the disk remains, the process proceeds to ST26 shown in FIG. 8, and the disk unloading operation is performed again.

  If there is no abnormality in the detection state of other detection switches or detection elements after the disk is taken out in ST18, that is, if it cannot be clearly determined that the disk remains in the housing 2, the process proceeds to ST19. Then, an inspection operation using the optical detection elements F1 and F2 is performed.

  In ST19, the second motor M2 is started again, the switching member 91 shown in FIG. 2 is moved in the (e) direction, the transfer unit 17 is rotated counterclockwise, and the third motor M3 is started. Then, the roller shaft 111 is rotated in the disc unloading direction. If the disk remains in the housing 2, the transfer rollers 112 and 113 roll on the surface of the disk as the transfer unit 17 rotates counterclockwise, and the disk moves to the transfer roller 112, 113 and the clamping unit 106. In ST20, as shown in FIG. 3, when the detection switch SW3 is switched from ON to OFF, the second motor M2 is stopped in ST21. At this time, the transfer unit 17 again moves to the transfer operation position and stops as shown in FIG.

  In ST22, it is determined whether or not the detection outputs of the optical detection elements F1 and F2 are switched from ON to OFF, that is, whether or not the optical detection elements F1 and F2 have detected a disk.

  In ST22, when the detection outputs of the optical detection elements F1 and F2 remain ON and no disk is detected, the control unit 401 determines that no disk remains in the housing 2, and in ST23, the second The motor M2 is started, and the transfer unit 17 is rotated clockwise. When the transfer unit 17 returns to the standby position shown in FIG. 2 and the detection switch T2 is turned ON in ST24, the second motor M2 is stopped in ST25 and the next disk loading operation is awaited.

  In ST22, when the optical detection elements F1 and F2 detect the disk D, the control unit 401 determines that the disk remains in the housing 2 and proceeds to ST26.

  The carry-out operation from ST26 to ST30 is the same as the operation from ST13 to ST18. In ST26, the transfer unit 17 is rotated clockwise and the transfer rollers 112 and 113 are moved in the carry-out direction. When the detection switch T2 is turned on in ST27, it is determined that the transfer unit 17 has returned to the standby position. The second motor M2 is stopped. Furthermore, when the detection switch SW3 is switched from ON to OFF in ST29, the third motor M3 is stopped and the rotation of the roller shaft 111 is stopped.

  In the flow chart shown in FIG. 7, the detection switch SW4 is turned on in ST8 while the moving unit 17 is being rotated counterclockwise in ST7 and before the transfer unit 17 reaches the transfer operation position in ST9. Whether or not the detection switch SW4 is turned ON is continuously monitored until the detection element Fe is turned ON in ST11 during the disk loading operation. When it is turned ON twice, it is preferable to perform control to shift to ST13.

(Disc eject operation)
When the disc D that has been driven by the drive unit 14 is ejected from the insertion slot 23, the next ejection operation is performed.

  When the disc ejection command 31 is given to the control unit 401 in ST31 shown in FIG. 10, the rotation of the rotary table 86 of the drive unit 14 is stopped. Then, the unit support base 13 is lifted, and the disk D clamped on the rotary table 86 is pressed against the lower surface of the support 21 at the selected position. Immediately thereafter, the holding claws 155, 156, and 157 are rotated, and the disk D is held between the lower surface of the support 21 and the holding claws 155, 156, and 157.

  In ST32, the second motor M2 is driven, the switching member 91 is moved in the (e) direction, the transfer unit 17 is rotated counterclockwise from the standby position, and the roller shaft is driven by the third motor M3. 111 is rotated in the disk unloading direction. Therefore, the transfer unit 17 rotates toward the transfer operation position shown in FIG. 3 while the transfer rollers 112 and 113 roll on the surface of the disk D.

  When the disc is being driven, the insertion slot 23 is closed by the shutter, but when the transfer unit 17 starts to rotate counterclockwise from the standby position, the switching member 91 moves in the (e) direction. Along with the movement, the shutter is moved and the insertion port 23 is opened.

  When the transfer unit 17 moves to the moving operation position shown in FIG. 2, the detection switch T3 is switched from ON to OFF in ST33, and the second motor M2 is stopped. At this time, the Y1 side end of the disk D sandwiched between the rotary table 86 and the lower surface of the support 21 is sandwiched between the transfer rollers 112 and 113 and the sandwiching section 106. Then, the clamp of the disk D on the rotary table 86 is released, the unit support base 13 and the drive unit 14 are lowered toward the bottom surface 6, and the central convex portion 86 b of the rotary table 86 is moved from the center hole Da of the disk D. Extracted in the Z1 direction.

  Thereafter, the process proceeds to ST34, in which the third motor M3 is reversely rotated to rotate the transfer rollers 112 and 113 in the disk carry-out direction, and at the same time, the second motor M2 is reversely rotated to change the switching member 91 to (d). The transfer unit 17 is rotated in the clockwise direction. The disk D is unloaded toward the insertion port 23 by the rotation of the transfer rollers 112 and 113 in the disk unloading direction and the rotation of the transfer unit 17 in the standby position direction.

  Before the disc D is ejected, the detection member 251 and the detection member 252 are returned to the closest position by the spring. When the disk D is carried out toward the insertion port 23, the detection member 251 is pushed in the X2 direction and the detection member 252 is pushed in the X1 direction by the outer peripheral edge of the disk D in ST35, and the detection switch SW1. SW2 switches from ON to OFF. When the disk D is further carried in the Y1 direction, the detection switch SW3 is switched from OFF to ON in ST36, and the detection switch SW4 is switched from OFF to ON in ST37. In ST37, when the center D0 of the disk D passes the line connecting the detection member 251 and the detection member 252 in the Y1 direction, the detection switch SW4 is turned on for a short time, and is turned off immediately thereafter.

  In ST38, it is monitored whether or not the detection switch SW4 is turned ON twice in the carry-out operation. First, when the disk D is unloaded and the detection switch SW4 is turned ON in ST37, it is confirmed whether this is the first ON after ST31 or the second ON. In ST38, when the detection switch SW4 is turned on for the second time, another disk D1 is inserted from the insertion slot 23 as shown in FIG. 9 before the unloading operation is started in ST31 and ST37 is reached. There is a possibility that the detection switch SW4 has been turned ON. At this time, the process proceeds to ST14 shown in FIG. 7, and after at least one disk is taken out, it is inspected whether another disk remains in the housing 2 or not.

  This inspection is performed in ST18 by confirming the output of the detection element Fe and the detection switches SW1 and SW2 after at least one disk is taken out. Or it transfers to operation | movement after ST19, the transfer unit 17 is rotated counterclockwise, and it is test | inspected whether the disc remains with the optical detection elements F1 and F2.

  In ST37, when the detection switch SW4 is switched to ON for the first time after the carry-out operation is started, the carry-out operation after ST39 is continued. However, after that, in ST38, whether or not the detection switch SW4 is turned on for the second time is monitored during the carry-out operation.

  If SW4 is not turned ON for the second time, it is determined that one disk D has been normally carried out. When the detection switch T2 is turned ON in ST39, the transfer unit 17 returns to the standby position shown in FIG. In step ST40, the second motor M2 is stopped. If the detection switch SW3 is turned off in ST41, it is determined that the disk has reached the unloading completion position, and the third motor M3 is stopped in ST42.

  In FIG. 10, until the detection switch T2 is turned on in ST39, it is shown whether the detection switch SW4 is turned on twice in ST38. However, the monitoring of ST38 is detected in ST41. It is preferable that the process continues until the switch SW3 is turned off, and when the detection switch SW4 is turned on twice, the process proceeds to ST14 at any time.

  The operation when ejecting the disk held on the support 21 moving into the disk storage area 20 is performed by moving the drive unit 14 to the retracted position indicated by the broken line in FIG. One of the supports 21 is moved to the selected position by operating. Then, the operation after ST31 is performed.

  In the above embodiment, a disk storage type disk device in which a plurality of supports 21 are stored in the housing 2 has been described. However, the present invention is not limited to this, and one disk is provided in the housing. The present invention can also be applied to a disk device into which only the above disk is inserted.

  In the illustrated embodiment, the mechanical detection switch SW4 is the outer periphery detection member. However, the optical detection element is used to detect the outer periphery of the disk, and this optical detection element is used as the outer periphery detection member. May be.

FIG. 3 is an exploded perspective view showing the overall structure of the disk device of the present invention; The top view which shows the 2nd power transmission part when a transfer unit exists in a standby position, The top view which shows the 2nd power transmission part when a transfer unit exists in a transfer operation position, The partial perspective view which shows a transfer unit and a 3rd power transmission part, A plan view showing a detection mechanism mounted on the disk device, A plan view showing the disc loading operation, A flowchart showing an operation flow at the time of loading a disc; A flowchart showing an operation flow at the time of loading a disc; A plan view showing a double insertion state of the disc, Flow chart showing the operation flow when ejecting a disc Circuit block diagram of the disk device,

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disc apparatus 2 Housing | casing 12 1st power transmission part 14 Drive unit 16 2nd power transmission part 17 Transfer unit 19 3rd power transmission part 21 Support body 22 Support body selection means 23 Insertion port 82 Rotation drive part 106 Clamping Portions 112 and 113 Transfer rollers 251 and 252 Detection members F1 and F2 Optical detection element (insertion side detection member)
Fe detection element (loading completion detection member)
SW4 detection switch (outer periphery detection member)

Claims (8)

In a disk device having an insertion port that opens in a housing, and a transport mechanism that transports a disk inserted from the insertion port toward a loading completion position in the housing,
The outer periphery detection member disposed in the middle of the path where the disk inserted from the insertion port reaches the loading completion position and away from the passage line through which the center of the disk passes, and the outer periphery detection member are in the detection state. And a control unit for monitoring whether or not,
The control unit reverses the transport mechanism and shifts to a disc ejection operation when the outer periphery detection member is in a detection state twice after starting the disc carry-in operation. .   The disk device according to claim 1, wherein after the disk unloading operation is completed, an operation for confirming whether another disk remains in the housing is performed. In a disk device having an insertion port that opens in a housing and a transport mechanism that transports a disk at a loading completion position in the housing toward the insertion port,
The outer periphery detection member disposed in the middle of the path from the loading completion position to the insertion port and away from the passage line through which the center of the disk passes, and whether or not the outer periphery detection member is in a detection state And a control unit for monitoring
The control unit completes the disk unloading operation when the outer periphery detection member enters the detection state twice after starting the disk unloading operation, and after that, another disk is placed in the housing. A disk device characterized by performing an operation of checking whether or not the disk remains.   4. The disk apparatus according to claim 2, wherein when the confirmation operation detects that another disk remains in the housing, the unloading operation is performed again.   The disk device according to claim 2, wherein the confirmation operation is performed using a detection member other than the outer periphery detection member. An insertion port side detection member that detects that the disk has been taken out of the housing is provided inside the insertion port,
6. The disk device according to claim 5, wherein the insertion port side detection member is used as the other detection member, and the insertion port side detection member performs a detection operation as to whether or not another disk remains in the housing. .   The insertion port side detection member is mounted on a moving unit, and in the confirmation operation, the insertion port side detection member moves together with the unit from the insertion port side toward the loading completion position. The disk device described. A loading completion detection member for detecting a disk is provided at the loading completion position,
6. The disk device according to claim 5, wherein the loading completion detection member is used as the other detection member, and the loading completion detection member performs a detection operation as to whether or not another disk remains in the housing.

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