JP4311572B2 - Disk storage type disk device - Google Patents

Description

  In the present invention, a plurality of supports for holding a disk are arranged in the housing, the disk carried into the housing is driven to rotate by the rotation driving unit, and the disk carried into the housing is held by the support. The present invention relates to a disc storage type disc device.

  Patent Document 1 discloses a disk storage type disk device in which a plurality of disks are stored in a housing. In this disk device, a plurality of supports (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 of the casing is transferred into the casing by the transfer mechanism and held on the support.

  In this type of disk storage type disk device, it is preferable that it is possible to confirm whether the disk is normally loaded from the insertion port until the disk is held by the support in the housing. That is, since a plurality of supports and a mechanism for selecting the support are provided inside the casing, there is a high possibility that a disk carried into the casing will hit these mechanisms. It is desirable to continuously detect the loading of the disc. Also, an abnormally sized disk whose outer diameter dimension is smaller than the specified value is difficult to be stably held by the support, and the disk does not move when the support is moved and any support is selected. There is a risk of falling off the support. Therefore, it is desired to monitor whether or not the outer diameter dimension of the disk carried into the housing is normal within the standard.

In the disk device described in Patent Document 2 below, a plurality of sensors and switches for detecting a disk inserted from an insertion slot are provided in a housing. The present invention, when the disk is carried into the housing, by monitoring the detection timing of the sensor and the switch time as a reference, is that attempts to recognize loading of the abnormal shape disc.

  As described in Patent Document 2, the disk detection means in the conventional disk device is arranged with a plurality of sensors and switches fixed in the housing, and each sensor and switch is switched on and off. In general, the disc loading detection or the disc shape detection is performed with reference to the timing.

  As described above, the sensor and the switch fixedly arranged in the casing cannot continuously monitor the disk inserted from the insertion slot and carried into the casing. Even if an attempt is made to monitor the conveyance state of a disk by combining the ON / OFF outputs of a plurality of sensors and switches, the detection operation of the individual sensors and switches may be interrupted, making it difficult to detect continuous disk carry-in operations. In addition, if a plurality of sensors and switches arranged in a fixed manner are used to finely detect the movement state of a loaded disk, it is necessary to arrange a very large number of sensors and switches.

  In addition, even if an attempt is made to detect an abnormality in the outer diameter of a disk from the detection output of a plurality of sensors and switches fixedly arranged in the housing, the disk is moving within the housing, so a large number of sensors and switches Unless the detection output is combined, it is difficult to accurately determine an abnormality in the outer diameter of the disk.

  The present invention solves the above-described conventional problems, and can continuously monitor the disk transfer state from the insertion port to the loading completion position by using the minimum number of detection elements arranged in the housing, and also has an outer diameter dimension. An object of the present invention is to provide a disk device capable of detecting an abnormal disk.

In the present invention, a plurality of supports (21) for holding a disk and any one of the supports (21) are moved to a selected position (a) in a housing (2) in which an insertion port (23) is formed. In the disk storage type disk device provided with the support selection means (22) to be operated and the rotation drive unit (82) where the disk (D) is installed,
In the housing (2), from the standby position approaching the insertion port (23) to the transfer operation position approaching the support (21) at the selected position (a) or approaching the rotation drive unit (82). A transfer unit (17) that moves toward the head is provided, and a transfer roller (112, 113) that transfers the disk (D) to the transfer unit (17) and an optical detection element (a light-emitting element and a light-receiving element facing each other). F1), and
After the disc (D) inserted from the insertion slot (23) intervenes in the optical path of the optical detection element (F1) of the transfer unit (17) in the standby position, the transfer unit (17) is moved to the transfer operation position. While moving, the disk (D) is transferred to a loading completion position that can be set on the support (21) at the selected position (a) or a loading completion position that can be set on the rotation drive unit (82). ) Continues to intervene in the optical path of the optical sensing element (F1).

  In the disk storage type disk apparatus of the present invention, the transfer unit moves toward the loading completion position while the disk is moved from the insertion slot to the loading completion position, and is detected by the optical detection element provided in the transfer unit. It is possible to detect the disc continuously. Therefore, the state of transport of the disk in the housing can be detected without interruption, and the control unit can always recognize that the disk is present in the housing. Therefore, it is possible to prevent the disc detection from being interrupted during the conveyance and causing a malfunction.

  The loading completion position in the present invention refers to the transfer completion position where the disk inserted from the insertion slot is fed to a position where the rotation drive unit can be loaded, or the disk inserted from the insertion slot is the selected position. It is the transfer completion position sent to the position which can be hold | maintained at the support body in this. However, as in the following embodiment, the transfer completion position where the disk can be supported by the support and the transfer completion position where the disk can be supported by the rotation drive unit may be the same position.

  In the present invention, the optical detection element (F1) is preferably disposed closer to the insertion port (23) than the transfer rollers (112, 113).

  If the optical detection element is positioned closer to the insertion port than the transfer roller, the disk is still at the point when the peripheral edge behind the disk is separated from the optical detection element and the detection output of the optical detection element is turned on. It is sandwiched between transfer rollers. Therefore, it is possible to stop the transfer roller immediately after the detection output is switched, or to reverse the transfer roller in the ejection direction, preventing the disc that could not be detected by the optical detection element from coming off the transfer roller. it can.

  Further, the present invention is provided with a detection unit (Fe) for detecting that the disk (D) has reached the loading completion position, and the detection output of the detection unit (Fe) is switched by the disk (D). In some cases, it is preferable that the optical detection element (F1) is located immediately inside the peripheral edge on the insertion port (23) side of the disk (D) having a normal outer diameter.

  With the above configuration, when a normal-sized disc is loaded, the optical detection element can continuously detect the disc until the disc reaches the loading completion position and the detection unit (Fe) operates. is there.

  In this case, when the light receiving element of the optical detection element (F1) detects light before the detection output of the detection unit (Fe) is switched, the disk (D) is moved to the housing (2) by the transfer mechanism (17). ) Is discharged toward the outside.

  By performing the above control, when an abnormal disk whose outer diameter is too small than the standard is inserted, the disk is not transferred to the rotation drive unit or the support body, and the disk is moved out of the housing. Can be discharged.

  In the present invention, the transfer unit (17) is provided with a pair of optical detection elements (F1, F2), which sandwich the center line (Oa) of the width dimension of the transfer region of the transfer unit (17). These are arranged equidistant from each other with respect to the center line (Oa).

  In the present invention, the distance between the detection region of one optical detection element (F1) and the detection region of the other optical detection element (F2) is the inner diameter of the center hole (Da) of the normal disk (D). Or the distance between the detection area of one optical detection element (F1) and the detection area of the other optical detection element (F2) is around the center hole (Da) of the normal disk (D). The diameter is preferably larger than the diameter of the transparent region (Db).

  As described above, a pair of optical detection elements are provided, and the distance between the optical detection elements is larger than the center hole (Da) or the transparent area (Db) of the disk. The central hole and the transparent region do not pass through the optical detection element, and the disc being transferred in the housing can be continuously detected by the optical detection element.

  In addition, the present invention provides a configuration in which the disc (D) is moved after the center hole (Da) of the disc (D) passes through the optical detection elements (F1, F2) when the disc (D) is carried into the housing (2). ) Is provided based on the shape of the outer peripheral edge, and after the other detectors (SW1, SW2) are operated, the loading completion position is reached. When the light receiving element of the optical detection element (F1) receives light before the detection output of the detection unit (Fe) for detecting this is switched, the disk (D) is moved to the housing (2) by the transfer mechanism (17). It can be configured to be discharged outward.

  As described above, in the time zone in which the center hole (Da) or the transparent area (Db) of the disk may pass through the optical detection element, the transfer detection of the disk is shared by the other detection units (SW1, SW2). Once the center hole or transparent area is no longer likely to pass through the optical sensing element, the optical sensing element detects the disc, so that the center hole or transparent area passes through the optical sensing unit, and the conveyance of the disc is detected. It is possible to prevent interruption.

  Further, according to the present invention, when the transfer unit (17) is in the standby position, the transfer roller (112, 113) is moved when the light of the optical detection element (F1) is blocked by the disk inserted from the insertion slot (23). It can also be configured to start in the disc loading direction.

  In the disc storage type disc device of the present invention, the disc being conveyed by the optical detection element is continuously continued until the disc inserted from the insertion port is installed in the rotation drive unit or moves to the loading completion position held by the support. Can be detected. Therefore, it is not necessary to fix and arrange a large number of sensors and switches in the housing.

  Further, according to the present invention, it is possible to control such that a disk having an abnormal outer diameter is reliably detected during transportation and discharged out of the housing.

  FIG. 1 is an exploded perspective view showing the entire structure of a disk storage type disk device of the present invention, FIG. 2 is a front view of the disk storage type disk device of the present invention as viewed from the front of the housing, and FIG. A transfer unit in the housing is shown, and (B) mainly shows a support, support selection means, a drive unit, and a shutter. FIG. 3 is a plan view of the entire disk storage type disk apparatus according to the present invention, and FIGS. 4 and 5 are side views showing a rotary drive unit and a clamp mechanism mounted on the drive unit. 6 and 7 are plan views showing the structure of the second power transmission unit according to the operation, and FIG. 8 shows the third power transmission unit, and is an exploded perspective view showing the structure of the rotation fulcrum of the transfer unit. It is. FIG. 9 is a plan view showing the detection means mounted on the disk storage type disk device. 10 and 11 are plan views showing the operation of the disk storage type disk device. FIG. 12 is a circuit block diagram of an electric circuit. 13 to 16 are flowcharts showing the detection operation and the operation control based on the detection operation.

(Overall structure)
The disk storage 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. Further, the X1-X2 direction shown in the figure is the horizontal direction, and the Y1-Y2 direction is the depth 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 intermediate housing 4, a transfer unit 17 is provided below the mechanism base 15 and inside the front surface 7. A third power transmission unit 19 is provided between the X1 side end 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.

  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 each of the disk storage areas 20 includes a plurality of supports that can support the disk D. 21 is arranged so as to be overlapped in the thickness direction (Z1-Z2 direction in the drawing). Below, the case where the six support bodies 21 are provided is demonstrated as an example.

  The upper casing 5 is provided with support body selection means 22, and one of the six support bodies 21 is selected by the operation of the support body selection means 22, and the selected position (a shown in FIG. ), And the distance between the selected support 21 and the support 21 adjacent below it is widened.

  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 and FIGS. 2A and 2B, 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. As shown in FIG. 2B, a shutter 24 is provided inside the front surface 7 of the housing 2. The shutter 24 is slidable in the Z1-Z2 direction, and is operated by the power of the second power transmission unit 16 provided in the intermediate housing 4. When the disk D is inserted from the insertion port 23 and carried into the housing 2 and when the disk D in the housing 2 is ejected from the insertion port 23, the shutter 24 slides upward and is inserted. The opening 23 is opened, otherwise the shutter 24 is lowered and the insertion opening 23 is closed.

  As shown in FIG. 2A, 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. . As shown in FIG. 2B, the support body 21 that has reached the selected position (a) among the plurality of support bodies 21 is at the same height as the insertion port 23 and is inserted from the insertion port 23. The disk D is transferred by the transfer unit 17 and supplied to and held by the lower surface of the support 21 at the selected position (a).

  As shown in FIG. 10, when the width W of the insertion slot 23 is divided into two and the imaginary line orthogonal to the front surface 7 and extending inward of the housing 2 is defined as the insertion center line Oa, the disc storage area 20 is supported. The center D0 of the disk D supported by the body 21 is separated from the insertion center line Oa by the distance δ on the left side (X1 side).

(Unit support base and drive unit)
As shown in FIGS. 1 and 3, the unit support base 13 supported on the bottom surface 6 of the lower housing 3 is formed by bending a metal plate. A front bent piece 13 a is provided in front of the unit support base 13, and the front bent piece 13 a is installed in parallel to the inner side of the front bent piece 3 a of the lower housing 3. A rear bent piece 13b is formed behind the unit support base 13, and the rear bent piece 13b is installed in parallel to the inner side of the rear bent piece 3b of the lower housing 3. A side bent piece 13 c is provided on the right side of the unit support base 13, and the side bent piece 13 c is installed in parallel to the inner side of the right bent piece 3 c of the lower housing 3.

  As shown in FIGS. 1 and 3, the inner edge 13d of the unit support base 13 has a concave arc shape and is located slightly away from the outer peripheral edge of the disk D supported by the support 21 shown in FIG. . The unit support base 13 does not hit the outer peripheral edge of the disk D while each support 21 is moved up and down by the support selection means 22.

  As shown in FIGS. 1 and 3, dampers 71, 72, and 73, which are elastic support members, are fixed at 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. Alternatively, a compression coil spring is combined with the bag.

  As shown in FIG. 3, support shafts 74, 75, and 76 are vertically fixed downward at three locations on the bottom surface of the unit support base 13, and the support shaft 74 is supported by the damper 71. Is supported by the damper 72, and the support shaft 76 is supported by the damper 73. The unit support base 13 can be elastically supported on the bottom surface 6 of the housing 2 by the dampers 71, 72 and 73.

  The rear bent piece 13b of the unit support base 13 is provided with one restraint shaft 77 protruding in the Y2 direction shown in the figure. The restraint shaft 77 is placed in the lock control hole 56 of the lock member 54 shown in FIG. Has been inserted. A pair of restraining shafts 78, 78 projecting in the Y1 direction shown in the figure are provided on the front bent piece 13a of the unit support base 13, and each restraining shaft 78 is a lock of the lock member 61 shown in FIG. It is inserted into the control hole 62.

  A lock control hole 56 formed in the lock member 54 shown in FIG. 1 extends to the X1 side and approaches the bottom surface 6 and is separated from the bottom surface 6 continuously from the constraint portion 56a to the X2 side. A lifting portion 56b located at the same position, and a relief portion 56c opened in an area sufficiently larger than the restraining shaft 77 are formed continuously on the X2 side of the lifting portion 56b. Similarly, the lock control hole 62 shown in FIG. 2 (B) has a restraining portion 62a that extends toward the X1 side and approaches the bottom surface 6, and a lifting portion 62b that is continuously away from the bottom surface 6 on the X2 side. In addition, a relief portion 62c continuous to the X2 side is formed.

  When the lock member 54 and the lock member 61 are moved to the X2 side, the restraint shaft 77 is held by the restraint portion 56a, the restraint shafts 78 and 78 are held by the restraint portions 62a and 62a, and the unit support base 13 is It is lowered to a position approaching the bottom surface 6 of the body 2. At this time, the dampers 71, 72 and 73 are crushed toward the bottom surface 6. When the lock member 54 and the lock member 61 move to the X1 side, the restraint shaft 77 is lifted by the lifting portion 56b, the restraint shafts 88, 88 are lifted by the lift portions 62b, 62b, and the unit support base 13 is raised. When the lock member 54 and the lock member 61 are further moved to the X1 side, the restraint shaft 77 is moved into the escape portion 56c, and the restraint shafts 78 and 78 are moved into the escape portions 62c and 62c. Is released, and the unit support base 13 is elastically supported by the dampers 71, 72, 73.

  As shown in FIG. 3, 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.

  The rotation range of the drive unit 14 is from the retracted position indicated by the solid line in FIG. 3 to the intervention position indicated by the broken line. When in the retracted position, the drive unit 14 is slightly separated from the outer peripheral edge of the disk D held on the support 21. When the drive unit 14 rotates to the intervention position, the rotation drive unit 82 provided on the rotation free end side of the drive unit 14 moves to the inside of the disk storage area 20, and the rotation center of the rotation drive unit 82 is selected. It coincides with the center hole of the disk D held on the support 21 moving to the position (a) in the vertical direction.

  As shown in FIGS. 4 and 5, in the rotation drive unit 82, the spindle motor Ms is fixed to the upper surface of the drive base 81 on the rotation free end side, and the rotation table 86 is fixed to the motor shaft of the spindle motor Ms. ing. 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. A plurality of teeth 86c that are formed at an equal pitch in the circumferential direction and extend radially with respect to the motor shaft are integrally provided on the lower surface of the support surface 86a.

  A plurality of clamp claws 86d are provided in the convex portion 86b of the rotary table 86, and the clamp claws 86d are in a non-clamping posture retracted into the convex portion 86b as shown in FIG. 4 and as shown in FIG. It is possible to operate in a clamping posture protruding outward from the periphery of the convex portion 86b. The clamp pawl 86d is biased by a spring toward the clamp posture.

  A switching rotator 86e is provided below the support surface 86a. The switching rotator 86e is rotatably provided independently of the motor shaft and the rotary table 86 with the motor shaft as a fulcrum. A cam (not shown) is provided on the upper surface of the switching rotating body 86e, and the clamp pawl 86d is operated between the non-clamping posture and the clamping posture by the cam. On the outer peripheral surface of the switching rotator 86e, switching teeth 86f arranged in the circumferential direction at an equal pitch are integrally formed. A lock plate spring 87 is fixed to the drive base 81, and a lock piece 87a bent at the tip of the lock plate spring 87 can be hooked on the tooth portion 86c.

  As shown in FIG. 3, in the drive unit 14, a clamp switching member 80 is provided on the side of the drive base 81 that faces the right side surface 8, and the clamp switching member 80 extends along the side of the drive base 81. It is slidably provided. A driving tooth 80a directed to the switching rotating body 86e is provided at the tip of the clamp switching member 80.

  When the clamp switching member 80 is moving to the rotation fulcrum side (support shaft 84 side) of the drive base 81, the drive teeth 80a of the clamp switching member 80 are fitted to the switching teeth 86f of the switching rotating body 86e, Further, the lock piece 87a of the lock plate spring 87 meshes with a tooth portion 86c formed on the lower surface of the support surface 86a. Thus, when the switching rotator 86e is constrained by the drive teeth 80a and the rotary table 86 is constrained by the lock piece 87a, the clamp pawl 86d retreats into the convex portion 86b and assumes a non-clamping posture.

  As indicated by a broken line in FIG. 3, when the clamp switching member 80 further moves to the rotation free end side of the drive base 81 after the rotation of the drive unit 14 to the intervention position is completed, the drive of the clamp switching member 80 is performed. The teeth 80a are disengaged from the switching teeth 86f of the switching rotating body 86e. Further, as shown in FIG. 5, the tip of the clamp switching member 80 rides on the lock plate spring 87, and the lock plate spring 87 is pushed down. Then, the lock piece 87a is disengaged from the tooth portion 86c on the lower surface of the support surface 86a. Therefore, both the rotary table 86 and the switching rotary body 86e are in a free state, and the clamp pawl 86d protrudes around the convex portion 86b with the force of the spring and assumes a clamp posture. At this time, the peripheral portion of the center hole Da of the disk D is sandwiched between the support surface 86a and the plurality of clamp claws 86d, and the disk D is clamped to the rotary table 86.

  The drive base 81 is provided with an optical head 83, and the optical head 83 is guided by a pair of guide members (not shown) arranged in parallel to each other. An objective lens 83 a is provided on the upper surface of the optical head 83. The drive base 81 is provided with a thread mechanism. The thread mechanism is driven by a state motor, and the optical head 83 is moved from a position approaching the rotation drive unit 82 in a direction away from the rotation drive unit 82. At this time, the objective lens 83a moves in the radial direction while facing the recording surface of the disk D clamped by the rotation driving unit 82.

(First power transmission unit)
As shown in FIG. 1, in the 1st power transmission part 12 provided on the bottom face 6 of the lower housing | casing 3, the 1st motor M1 (not shown) is being fixed on the said bottom face 6, The rack member 32 is moved in the Y1-Y2 direction by the power of the first motor M1. A switching member 38 is provided on the bottom surface 6, and the switching member 38 can move in the Y1 direction together with the rack member 32. The switching member 38 is provided with a drive pin 41 protruding upward.

  As shown in FIG. 3, a drive slider 85 is slidably provided in the Y1-Y2 direction on the lower surface of the unit support base 13, and the drive pin 41 is fitted to the drive slider 85. In the drive unit 14, a rotation drive shaft 81 a is fixed downward on the lower surface of the drive base 81, and the rotation drive shaft 81 a is movable in an arc guide hole 13 e formed in the unit support base 13. It has become.

  As shown in FIG. 1, when the rack member 32 provided in the first power transmission unit 12 moves in the Y1 direction from the starting end located on the Y2 side, the switching member 38 also moves in the Y1 direction together. The drive slider 85 provided on the lower surface of the unit support base 13 is moved in the Y1 direction by the drive pin 41 provided on the switching member 38. The rotational force in the clockwise direction is applied to the rotational drive shaft 81a by the moving force of the drive slider 85 in the Y1 direction, so that the drive unit 14 moves from the retracted position indicated by the solid line in FIG. Pivoted to position.

  As shown in FIG. 1, in the first power transmission unit 12, a connecting rotation lever 43 is rotatably supported on the bottom surface 6. The rack member 32 and the connection rotation lever 43 are connected via a cam. When the rack member 32 moves to a predetermined position in the Y1 direction, the connection rotation of the rack member 32 is caused by the movement force of the rack member 32 in the Y1 direction. The lever 43 is rotated counterclockwise.

  As shown in FIG. 1, a lock switching member 42 is provided on the bottom surface 6 so as to be reciprocally movable along a rotation locus, and a tip end portion of the connecting rotation lever 43 is connected to the lock switching member 42. . On the bottom surface 6, the connecting member 52 is rotatably supported on the Y <b> 2 side, the lock switching member 42 is connected to one end of the connecting member 52, and the other end of the connecting member 52 is the lock member 54. It is connected to. Further, the end portion on the Y1 side of the lock switching member 42 is connected to a connecting member (not shown), and this connecting member is connected to a lock member 61 shown in FIG.

  In the first power transmission unit 12, the rack member 32 moves in the Y1 direction from the starting end shown in FIG. 1, and after the drive unit 14 rotates to the intervention position shown by the broken line in FIG. 3, the rack member 32 further moves in the Y1 direction. When moving to the position, the switching member 38 is not moved, and the connection turning lever 43 is turned counterclockwise. Therefore, the lock switching member 42 is moved in the Y1 direction, the connecting member 52 is rotated, and the lock member 54 and the lock member 61 are moved in the X1 direction. At this time, the restraint shaft 77 provided on the unit support base 13 is moved from the restraint portion 56a of the lock control hole 56 formed in the lock member 54 to the lifting portion 56b, and the restraint shafts 78 and 78 are moved as shown in FIG. It is moved from the restraint portions 62a and 62a of the lock control holes 62 and 62 formed in the lock member 61 shown in (B) to the lifting portion 62b. Thereby, the unit support base 13 is lifted, and the convex portion 86b of the rotary table 86 provided in the drive unit 14 at the intervention position enters the center hole Da of the disk D at the selection position (a).

  After that, when the rack member 32 moves in the Y1 direction, the switching member 38 is moved in the Y1 direction without rotating the connecting rotation lever 43, and the drive slider 85 shown in FIG. It is moved in the Y1 direction. At this time, the clamp switching member 80 of the drive unit 14 in the intervention position is moved by the drive slider 85 to the rotation free end side of the drive base 81, and the clamp pawl 86d protrudes to the clamp posture as shown in FIG. Be made.

  Further, when the rack member 32 moves in the Y1 direction, the drive slider 85 does not move, the connection turning lever 43 is turned counterclockwise, and the lock switching member 42 is further moved in the Y1 direction. It is done. As a result, the lock member 54 and the lock member 61 are further moved to the X1 side, the restraint shaft 77 provided on the unit support base 13 is moved into the escape portion 56c of the lock control hole 56, and the restraint shafts 78, 78 are moved. Is moved into the relief portions 62c and 62c of the lock control holes 62 and 62, and the unit support base 13 is elastically supported by the dampers 71, 72, and 73. At this time, the drive pin 41 rotates toward the escape hole 85a of the drive slider 85 shown in FIG. 3 and is provided on the drive pin 41 located on the lower housing 3 side and the unit support base 13. The connection with the drive slider 85 is released.

  Therefore, the drive unit 14 in the intervention position is elastically supported by the dampers 71, 72, and 73 together with the unit support base 13 while the disk D is supported on the rotary table 86. In this state, the holding of the disk D by the support 21 is released, the rotary table 86 is rotated by the spindle motor Ms, and the optical head 83 can reproduce the signal recorded on the disk D and record the signal. .

(Second power transmission unit)
Next, the structure of the second power transmission unit 16 provided in the intermediate casing 4 will be described with reference to FIGS. 6 and 7.

  In the second power transmission unit 16, an arc-shaped switching member 91 is provided on the mechanism base 15 of the intermediate housing 4. 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. The switching member 91 is guided so as to be slidable in the direction (d) and the direction (e) shown in the figure along an 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 switching gear 98 is provided on the side of the output gear 94.

  As shown in FIG. 2 (B), the upper housing 5 is provided with a transmission gear 99 for transmitting the rotational power to the support body selecting means 22 so as to be rotatable. As shown in FIG. The gear 99 is located on the side of the output gear 94. On the mechanism base 15, switching means (not shown) for moving the switching gear 98 to a position where both the output gear 94 and the transmission gear 99 are engaged and the meshing between the output gear 94 and the transmission gear 99 is released. Is provided.

  As shown in FIGS. 6 and 7, a transfer unit 17 is provided under the mechanism base 15. As shown in FIG. 8, the transfer unit 17 has a metal unit frame 100 that is elongated in the X1-X2 direction. The unit frame 100 has an upper surface 101, a lower surface 102, a fulcrum side surface 103, and a free end side surface 104, and the inside of the unit frame 100 penetrates in the Y1-Y2 direction in the drawing. 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 104 on the free end side. And a side guide part 108 to be operated. The facing distance between the side guide portions 107 and 108 is wider than the diameter of the disk D, and as shown in FIG. 2 (A), it is almost the same as or slightly wider than the opening width of the insertion slot 23. Has been.

  In the transfer unit 17, a roller shaft 111 is provided in the unit frame 100. The roller shaft 111 extends in parallel with 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 104 on the free end side. As shown in FIG. 9, 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. . The transfer roller 112 and the transfer roller 113 are arranged at an interval in the axial direction.

  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 integrally with the two transfer rollers 112 and 113 and has a smaller diameter than the two transfer rollers 112 and 113, or is formed by directly exposing the roller shaft 111.

  The 1st transfer roller 112 and the 2nd transfer roller 113 are facing the clamping part 106 of the sliding member 105 shown in FIG. 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.

  In the above description, the sandwiching portion 106 is formed of a synthetic resin material having a low friction coefficient, but the sandwiching portion 106 may be a roller that can freely rotate.

  The transfer unit 17 can be rotated from the standby position shown in FIG. 6 toward the transfer operation position shown in FIG. 7 with the end on the X1 side as a fulcrum. In the standby position shown in FIG. 6, 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 21.

  As shown in FIG. 7, while the transfer unit 17 rotates counterclockwise about the X1 side and reaches the transfer operation position, the transfer rollers 112 and 113 continue to rotate, and the transfer rollers 112 and 113 rotate. The disk D is transferred toward the support 21 in the selected position (a) by the force and the rotational force of the transfer unit 17.

  As shown in FIG. 8, the fulcrum shaft 131 serving as the pivot fulcrum of the transfer unit 17 is fixed so as to extend vertically upward on the bottom surface 6 of the lower housing 3. The transfer unit 17 is provided with a bearing portion 125 extending in a direction orthogonal to the roller shaft 111 at an end portion on the X1 side in the drawing, and the bearing portion 125 is rotatably supported by the fulcrum shaft 131.

  As shown in FIGS. 6 and 7, in the second power transmission unit 16, an arcuate guide hole 15 b opens on the X1 side of the mechanism base 15 of the intermediate housing 4 and also on the X2 side of the figure. A guide hole 15c is opened. Both of the guide holes 15b and 15c extend along an arc locus having the fulcrum shaft 131 as the center of curvature.

  On the upper surface 101 of the unit frame 100 of the transfer unit 17, a guide shaft 132 extending vertically upward is fixed at a position close to the fulcrum shaft 131, and similarly extending vertically upward on the free end side away from the fulcrum shaft 131. The drive shaft 133 is fixed. The guide shaft 132 is inserted into the guide hole 15b from below to above, and the drive shaft 133 is also inserted into the guide hole 15c from below to above. The tip of the drive shaft 133 protrudes above the mechanism base 15, and a rotation ring 134 is rotatably provided on the drive shaft 133 on the mechanism base 15.

  A drive lever 135 is provided on the mechanism base 15. A base portion of the drive lever 135 is rotatably supported on the upper surface of the mechanism base 15 via a shaft 136. A drive elongated hole 135a is opened in the drive lever 135, and a rotation ring 134 provided on the outer periphery of the drive shaft 133 is inserted into the drive elongated hole 135a.

  A unit control slot 137 is opened in the switching member 91. A transmission shaft 138 protrudes vertically on the upper surface of the drive lever 135, and this transmission shaft 138 is inserted into the unit control slot 137 from below to above.

  In the unit control slot 137, a non-acting portion 137a is formed. The non-acting portion 137a is formed along the arc locus, and the center of curvature of the arc locus is equal to the center of curvature of the arc locus when the switching member 91 slides in the direction (d)-(e) shown in the figure. I'm doing it. Therefore, as shown in FIG. 6, even when the switching member 91 slides in the direction (d)-(e) when the transmission shaft 138 is located in the non-acting portion 137a, the moving force is It does not act on the transmission shaft 138. Further, the center of curvature of the non-acting portion 137a and the shaft 136 that is the rotation center of the drive lever 135 are not present at the same position. Therefore, when the transmission shaft 138 is positioned in the non-acting portion 137a and the switching member 91 slides in the direction (d)-(e), the drive lever 135 is rotated clockwise as shown in FIG. The transfer unit 17 is maintained in a rotated state, and is maintained in a state stopped at the standby position.

  In the unit control long hole 137, a drive inclined portion 137b is provided continuously on the Y1 side of the non-acting portion 137a in the drawing, and a holding portion 137c is formed at an end portion on the Y1 side of the drawing. The holding part 137c is located closer to the center of curvature of the sliding locus of the switching member 91 than the non-acting part 137a.

  Therefore, while the switching member 91 slides further in the direction (e) shown in FIG. 6 from the position shown in FIG. 6 and reaches the position shown in FIG. 7, the transmission shaft 138 moves to the drive inclined portion 137b and is transmitted by the drive inclined portion 137b. The shaft 138 is moved counterclockwise, and the drive lever 135 is rotated counterclockwise. As a result, as shown in FIG. 7, the transfer unit 17 is rotated counterclockwise around the fulcrum shaft 131 to reach the transfer operation position. In the transfer operation position shown in FIG. 7, the drive shaft 133 is located at the Y2 side end of the guide hole 15c, the transmission shaft 138 is held by the holding portion 137c of the unit control slot 137, and the transmission shaft 138 is Since it is held by the holding portion 137c of the control slot 137, the transfer unit 17 is restrained at the transfer operation position shown in FIG.

  In the present invention, the unit control slot 137 and the drive lever 135 provided in the switching member 91 constitute transfer unit moving means.

(Third power transmission unit)
Next, the structure of the 3rd power transmission part 19 provided in the bottom face 6 of the lower housing | casing 3 is demonstrated.

  As shown in FIGS. 3 and 8, an integrated gear 141 is rotatably supported below the fulcrum shaft 131 fixed to the bottom surface 6 of the lower housing 3. The upper part of the integrated gear 141 is a vertical worm gear 141a, and the lower part is a lower gear 141b. As shown in FIG. 3, 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 is provided on the bottom surface 6, and a worm gear 143 fixed to the rotation shaft meshes with the intermediate gear 142.

  As shown in FIG. 8, in the transfer unit 17, one end of the roller shaft 111 protrudes outward from the side surface 103 on the fulcrum side of the unit frame 100, and a spur gear is formed 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. The disk storage type disk apparatus 1 of the present invention is provided with a transfer unit moving means for rotating the transfer unit 17 from the standby position to the transfer operation position, and a roller driving means for rotating the transfer rollers 112 and 113 separately. It can be operated independently.

(Disk storage area)
Next, the structure of the disk storage area 20 and the support body selection means 22 provided in the upper housing 5 will be described.

  As shown in FIG. 1, FIG. 2 (B), and FIG. 10, on the ceiling surface 11 of the upper housing 5, three selection shafts 151 extending downward in parallel with each other are rotatably supported. A selection groove 152 is formed on the outer periphery of each selection shaft 151. As shown in FIG. 2B, the selection groove 152 is formed in a spiral shape. The selection groove 152 forms a dense pitch portion 152a above the selection shaft 151 and forms a dense pitch portion 152b below. In the dense pitch portions 152a and 152b, the selection grooves 152 are formed at a short pitch, and in each of the dense pitch portions 152a and 152b, the selection grooves 152 are formed at least five (5 pitches) or more. An intermediate portion of the selection groove 152 is a sparse pitch portion 152c. In this sparse pitch portion 152c, the selection groove 152 is formed by one pitch between both dense pitch portions 152a and 152b.

  Six support bodies 21 are provided so as to be overlapped in the vertical direction, and through holes 21 a are opened at three positions of each support body 21. Each insertion hole 21a is inserted into the outer periphery of the selection shaft 151. The insertion hole 21a is provided with a projecting engagement portion that is slidably engaged with the selection groove 152. Each of the latching portions of the six supports 21 is arranged to be latched at each of the five adjacent pitches of the selection groove 152. Therefore, when the selection shaft 151 rotates counterclockwise when viewed from above, the support members 21 are sent downward along the selection shaft 151 one by one, and when the selection shaft 151 rotates clockwise, the support member 21 is A single sheet is sent upward along the selection axis 151. Then, when any one of the supports 21 hooked on the sparse pitch portion 152c reaches the selection position (a) shown in FIG. 2B, the support 21 at the selection position (a) An interval in the vertical direction in which the drive unit 14 can enter is provided between the support body 21 located in the dense pitch portion 152b.

  The three selection shafts 151 are rotated in synchronization with each other. As the mechanism, a thin small gear (not shown) is integrally fixed to the upper end of each selection shaft 151. Further, a thin ring gear having a large diameter is rotatably provided on the lower surface of the ceiling surface 11 of the upper housing 5, and all the small gears are engaged with the ring gear.

  As shown in FIG. 2B, a rotating shaft 99a is rotatably supported on the lower surface of the ceiling surface 11 of the upper housing 5. The transmission gear 99 is fixed to the lower end of the rotating shaft 99a, and the transmission gear 99 can mesh with the switching gear 98 of the second power transmission unit 16 shown in FIG. A thin gear 99b is fixed to the upper end of the rotating shaft 99a, and the thin gear 99b meshes with the ring gear. That is, in the selection operation for moving any one of the six support bodies 21 to the selection position (a), the second motor M2 provided in the second power transmission unit 16 is driven, and the power is switched to the switching gear. Transmission from 98 to the transmission gear 99 is performed by rotating the ring gear.

  As shown in FIG. 10, each support 21 is provided with holding claws 155, 156, and 157. Each of the holding claws 155, 156, and 157 is supported by the support body 21 so as to be rotatable around the selection shaft 151. When the disk D transferred by the transfer unit 17 is supplied to the support 21 at the selected position (a), the disk D is held by the support 21 and the holding claws 155, 156, and 157. A holding release function is provided in the housing 2. When the center hole Da of the disk D supported by the support 21 at the selected position (a) is clamped to the rotary table 86, each holding claw 155 is provided. , 156 and 157 are rotated, and the holding of the disk D by the support 21 is released.

(Detection means)
FIG. 9 shows detection means provided in each part of the disk storage type disk device 1.

  Inside the housing 2, detection elements Fe for detecting completion of loading are provided at corners of the left side surface 9 and the rear surface 10. In this detection element Fe, a light emitting element and a light receiving element are provided to face each other. This detection element Fe is provided at one location in the housing 2 and is disposed at the same height as the support 21 moved to the selection position (a).

  A loading detection member 200 is provided on the support 21 in the disk storage area 20. The loading detection members 200 are individually provided on all the supports 21, and the support members 21 are supported by the respective supports 21 so as to be able to rotate around the selection shaft 151. Each loading detection member 200 provided on each support 21 is always urged to rotate clockwise as shown in FIG. 9 by a torsion spring (not shown). A holding claw 156 shown in FIG. 10 is integrally formed at the tip of one arm portion 201 extending from the loading detection member 200.

  Further, a light shielding portion 203 is provided at the tip of the other arm portion 202 extending from the loading detection member 200, and when the loading detection member 200 is rotated clockwise as shown in FIG. The light shielding unit 203 enters the detection element Fe for detecting the completion of loading, and the light from the light emitting element is shielded by the light shielding unit 203, and the light is not received by the light receiving element (OFF). In this embodiment, the loading detection member 200 and the detection element Fe constitute a loading completion detection mechanism.

  As shown in FIG. 10, each support 21 provided in the disk storage area 20 is configured as shown in FIG. 10 except that the disk D supported by the support 21 is clamped on the rotary table 86 of the rotation drive unit 82. The holding claws 155, 156, and 157 protrude to positions where the disk D can be held. As shown in FIG. 9, the loading detection member 200 provided with the holding claws 156 also rotates in the clockwise direction, and the light shielding portion 203 is moved. The sensor element Fe can enter the inside.

  When none of the plurality of supports 21 has moved to the selected position (a), the light shielding unit 203 does not intervene in the detection element Fe, and the detection element Fe receives light generated from the light emitting element. It is detected by the element and the detection output is turned ON. When any one of the supports 21 is selected and reaches the selected position (a) by the operation of the support selection means 22, the light shielding portion 203 provided on the selected support 21 intervenes in the detection element Fe. The light from the light emitting element to the light receiving element is blocked, and the detection output of the detection element Fe is switched to OFF. Therefore, the mechanism control unit 301 shown in FIG. 12 can confirm whether or not the support 21 to be selected has reached the selection position (a) by monitoring the detection output of the detection element Fe.

  Further, when the disk D loaded by the transfer unit 17 is sent to the support body 21 in a state where the support body 21 has been moved to the selected position (a) and stopped, the disk D is held by the support body 21 and each holding unit. While being held by the claws 155, 156 and 157, the arm portion 201 is pushed by the outer peripheral edge of the disk D being fed. Therefore, the loading detection member 200 rotates counterclockwise, the light shielding portion 203 comes out of the detection element Fe, and the detection output of the detection element Fe is switched from OFF to ON. By this detection operation, it can be recognized that the loading of the disk D onto the support 21 at the selected position (a) is completed.

  As shown in FIGS. 9 and 10, the transfer unit 17 is provided with a pair of optical detection elements F1 and F2. The optical detection elements F1 and F2 are provided in the unit frame 100 of the transfer unit 17 shown in FIG. 8, and sandwich the disk passing between the holding portion 106 of the sliding member 105 and the transfer rollers 112 and 113. The light-emitting element is provided on one side and the light-receiving element is provided on the other side so as to face each other.

  As shown in FIGS. 9 and 10, the optical detection elements F1 and F2 are arranged on the left and right sides with respect to the center of the transferable width of the disk D in the transfer unit 17 (the center of the width dimension W of the insertion port 23 shown in FIG. 1). Are arranged at equal distances. Each of the optical detection elements F1 and F2 faces an intermediate portion 114 provided between the first transfer roller 112 and the second transfer roller 113, and is provided closer to the insertion port 23 than the intermediate portion 114. ing.

  As shown in FIG. 10, when the transfer unit 17 is in the standby position, the optical detection elements F <b> 1 and F <b> 2 are located between the intermediate portion 114 and the insertion port 23. When the disk D is inserted from the insertion port 23, the optical detection elements F1 and F2 are blocked by the disk D before the front peripheral edge hits the first transfer roller 112 and the second transfer roller 113, The detection outputs of both optical detection elements F1, F2 are switched from ON to OFF. Thereby, it can be detected that the disk D is inserted from the insertion slot 23.

  Based on this detection operation, the third motor M3 shown in FIG. 3 is started, and the first transfer roller 112 and the second transfer roller 113 start to rotate in the loading direction. When the disk D reaches the first transfer roller 112 and the second transfer roller 113, since both the transfer rollers 112 and 113 have started to rotate in the loading direction, the disk D inserted from the insertion port 23 Is smoothly fed into the housing 2 by the rotational force of the transfer rollers 112 and 113.

  As described above, the optical detection elements F1 and F2 are provided between the intermediate portion 114 and the insertion slot 23, and the optical detection elements F1 and F2 detect the insertion of the disk, thereby inserting the disk D from the insertion slot 23. When doing so, the disk D can be carried into the housing 2 without receiving a large resistance.

  Further, the disk held between the transfer rollers 112 and 113 and the holding portion 106 is directed toward the inside of the housing 2 by the rotation of the transfer rollers 112 and 113 and the counterclockwise turning force of the transfer unit 17. When the optical detection element F1 is carried in, the optical detection element F1 and the optical detection element F2 are positioned equidistant from side to side across the movement line of the center D0 of the disk D. Further, the interval between the detection region by the optical detection element F1 and the detection region by the optical detection element F2 is set sufficiently wider than the diameter of the center hole Da of the disk D.

  Therefore, when the disc D is being carried in, the center hole Da of the disc D does not pass through the optical detection elements F1 and F2, and both discs are loaded when the disc D is carried into the housing 2. The state where the detection elements F1 and F2 are blocked by the disk D is continued. Therefore, by monitoring that the detection outputs of both the optical detection elements F1 and F2 continue to be OFF, it can be recognized that the disk D has been reliably carried in by the transfer unit 17.

  However, in many actual disks D, a transparent region Db is formed around the center hole Da. Therefore, if the distance between the detection area of the optical detection element F1 and the detection area of the optical detection element F2 is sufficiently larger than the diameter of the area Db, the optical detection element can be used when the disk D is loaded. Both F1 and F2 can continue to be in an OFF state, and by monitoring the optical detection elements F1 and F2, it can be detected that the disk D is properly loaded.

  However, in this embodiment, the distance between the optical detection elements F1 and F2 is relatively narrow, and the disc inserted from the insertion slot 23 when the transfer unit 17 is in the standby position as shown in FIG. D can be immediately detected by the optical detection elements F1 and F2. Therefore, although the distance between the optical detection element F1 and the optical detection element F2 is larger than the diameter of the center hole Da of the disk D and the diameter of the normally assumed transparent region Db, the diameter is larger than usual. In the case of the disc D having the transparent region Db, this region Db may pass through one of the optical detection elements F1 and F2.

  In order to cope with such a phenomenon, in this embodiment, as shown later in the flowcharts of FIGS. 13 and 14, until the transparent area Db of the disk D passes through the transfer unit 17, The detection switches SW1, SW2 and SW4 provided inside the disk are used to monitor whether or not the disk D is normally loaded and whether or not the disk D having an abnormal outer diameter is loaded. When D is carried into the housing 2 to some extent and there is no risk of the transparent region Db passing through the optical detection elements F1 and F2, the detection output of the optical detection elements F1 and F2 is monitored, and the disk D is It is possible to detect whether or not the disk D is normally loaded and whether or not the disk D having an abnormal outer diameter is loaded.

  As shown in FIG. 9, when the disk D is loaded on the support 21 at the selected position (a) by the rotation of the transfer rollers 112 and 113 after the transfer unit 17 is rotated to the transfer operation position, the loading is performed. The detection member 200 is pushed by the disk D, the light shielding portion 203 is separated from the detection element Fe, and the detection element Fe is switched from OFF to ON. As described above, when the detection element Fe is switched to ON, the optical detection elements F1 and F2 are detected so as to be located immediately inside the peripheral edge on the insertion port 23 side of the disk D having a normal outer diameter. The positional relationship between the element Fe and the optical detection elements F1 and F2 is set. Therefore, when the detection output of the optical detection elements F1 and F2 continues to be OFF when the detection element Fe is turned on and the completion of the loading of the disk D is detected, the outside of the disk D in the loading completion state is removed. It can be recognized that the diameter is normal. On the contrary, if the optical detection elements F1 and F2 are switched from OFF to ON before the detection element Fe is switched ON, it can be determined that the outer diameter of the disk D being transported is abnormal.

  Immediately after the optical detection elements F1 and F2 are switched from OFF to ON, the disc D is still held by the transfer rollers 112 and 113 and the sandwiching portion 106, and therefore the outer diameter is determined to be abnormal. At this time, if the transfer rollers 112 and 113 are immediately rotated in the discharge direction, the disc D determined to be abnormal can be discharged toward the insertion slot 23.

  As shown in FIGS. 9 to 11, a pair of detection members 251 and 252 are provided immediately inside the insertion slot 23. The detection members 251 and 252 are detection pins extending vertically, and each detection pin vertically traverses the insertion port 23 inside the housing 2. The detection member 251 and the detection member 252 are mounted on a slider (not shown) and supported so as to be linearly movable in the X1-X2 direction independently of each other. And the detection member 251 and the detection member 252 are urged | biased by the direction which mutually approaches with the spring.

  A detection plate 253 extending in the X1-X2 direction is fixed to one detection member 251, and a detection plate 254 extending in the X1-X2 direction is also fixed to the other detection member 252. In the housing 2, mechanical operation type detection switches SW 1, SW 3, and SW 4 that are operated by the detection plate 253 are provided, and the same mechanical operation type detection switch SW 2 that is operated by the other detection plate 254 is provided. ing.

  In FIG. 11, 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 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 are immediately turned on. Turns off. By confirming that the detection switches SW1 and SW2 are both OFF, the operation in which the disk D is carried into the housing is being performed, and the operation in which the disk D is carried out toward the insertion slot 23. Can be recognized.

  When the center D0 of the disk D moves slightly inward from the insertion slot 23, the detection member 251 is moved the longest distance in the X2 direction, and the detection switch SW4 is switched from OFF to ON for a short time by the detection plate 253. As shown in FIG. 11, when the disk D is carried into the housing 2 and the detection member 251 and the detection member 252 return to the initial positions, the detection switches SW1 and SW2 are switched from OFF to ON again. Therefore, when the disk D is being carried in, the detection switches SW1 and SW2 are first switched from ON to OFF, and then the detection switch SW4 is switched from OFF to ON for a short time and then further OFF, and the detection switch SW1. By confirming that SW2 returns from OFF to ON, it can be determined that the disk D having a normal outer diameter has been loaded.

  Conversely, when it is determined that the detection switch SW4 does not turn on within a predetermined time after the detection switches SW1 and SW2 are switched from ON to OFF, or after the detection switches SW1 and SW2 are switched from ON to OFF. When the detection switches SW1 and SW2 are returned from OFF to ON without the detection switch SW4 being turned ON, it can be determined that a disk D having an abnormal outer diameter (a disk having a smaller diameter than the standard) is loaded. In this case, the transfer rollers 112 and 113 are immediately driven in the discharge direction, the transfer unit 17 is rotated from the transfer operation position to the standby position, and the disk D is discharged from the insertion slot 23.

  Further, 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, and the detection switch SW3 is turned from OFF to ON by the detection plate 253. In the latter half of the process in which the disk D is ejected, the detection member 251 returns to the X1 direction, and the detection switch SW3 is switched from ON to OFF. During the disk unloading operation, after the transfer unit 17 returns to the standby position shown in FIG. 10, the third motor M3 is stopped and the first transfer is performed when the detection switch SW3 is switched from ON to OFF. The rotation of the roller 112 and the second transfer roller 113 is stopped. In FIG. 10, the position of the detection member 251 at this time is indicated by (i). When the detection member 251 returns to the position (i), the rotation of the transfer rollers 112 and 113 is stopped, so that the disk D is ejected in a state where a part of the disk D is held inside the housing 2. Can be stopped.

  When waiting for the insertion of the disk D, as shown in FIG. 10, the interval between the detection members 251 and 252 is set wider than the interval between the optical detection elements F1 and F2. Therefore, when the disk D is inserted from the insertion port 23, the optical detection elements F1 and F2 are turned off first, and the disk insertion is detected, and the transfer rollers 112 and 113 are started in the loading direction. Then, after the carry input is given to the disk D, the outer peripheral edge of the disk D hits the detection members 251 and 252. Therefore, when the disk D is inserted by hand, the resistance for moving the detection members 251 and 252 is not felt by the hand, and the insertion feeling of the disk can be improved.

  As shown in FIG. 3, the lower casing 3 is also provided with an operation detection switch SWa. The rack member 32 of the first power transmission unit 12 moves a predetermined distance in the Y1 direction, and the drive slider 85 is moved in the Y1 direction by the drive pin 41 of the switching member 38 that moves together with the rack member 32. When the clamp switching member 80 is operated by the moving force and the clamp pawl 86d assumes the clamping posture as shown in FIG. 5, the operation detection switch SWa is switched from OFF to ON.

(electric circuit)
FIG. 12 is a block diagram showing an electric circuit configuration of the disk storage type disk device 1. In the disk device 1, a mechanism control unit 301 configured by a microcomputer shares control processing for all operations. The read signal from the optical head 83 is given to the head controller 302, and further, the decoder 303, which is a signal processor, demodulates the signal recorded on the disk D, and the demodulated signal is a DRAM 304, which is a buffer memory. After being temporarily held in, the sound is produced from the speaker. Further, in the optical head 83, a focus servo mechanism that finely moves the objective lens 83a in the optical axis direction to focus the detection light emitted from the objective lens 83a on the recording surface of the disk D, and the spot of the detection light A tracking servo mechanism for following the recording track is provided. The focus servo mechanism and the tracking servo mechanism are also controlled by the head controller 302.

  The servo motor driver 305 is controlled by the head controller 302. The servo motor driver 305 controls the thread motor and spindle motor Ms mounted on the drive unit 14, and further controls the third motor M3 that rotates the transfer rollers 112 and 113. The thread motor, the spindle motor Ms, and the third motor M3 are provided with FG (frequency detector), and the number of rotations of each motor is detected by the FG, and the detected signal is controlled by the head control. Given to part 302. When the rotation speed detection signal from the FG is fed back to the head controller 302, the head controller 302 can control the rotation speed of each motor.

  The first motor M1 and the second motor M2 are driven and controlled by motor drivers, respectively, and the detection element Fe, the optical detection elements F1 and F2, the detection switches SW1, SW2, SW3, SW4, and the operation detection switch SWa. Is output to the mechanism control unit 301.

(Operation)
Next, the overall operation of the disk storage type disk device 1 of the present invention will be described.

  FIG. 10 is a plan view showing a state in which the disc storage type disc device 1 is set to a home position waiting for disc insertion. FIGS. 9 and 11 are plan views showing disc insertion and carry-in operations. In the flowcharts shown in FIG. 13 to FIG. 17, each operation stage controlled by the mechanism control unit 301 is indicated by step (S).

(Disc insertion standby mode)
The home position for waiting for the insertion of the disk D in the disk storage type disk device 1 is an intervention position where the drive unit 14 intervenes in the disk storage area 20 as shown by a solid line in FIG. It is in a standby position along the inside of the front surface 7 of the housing 2.

  When an operation for designating any one of the plurality of supports 21 is performed using an operation unit or a remote controller located on the Y1 side of the front surface 7 of the housing 2, the first power transmission unit 12 shown in FIG. The first motor M1 is started, the rack member 32 and the switching member 38 are driven in the Y2 direction, and a drive slider 85 provided on the lower surface of the unit support base 13 is driven by the drive pin 41 fixed to the switching member 38. As shown in FIG. 3, the drive unit 14 is moved in the Y2 direction, and the drive unit 14 is rotated to the retracted position along the inner side of the right side surface 8 of the housing 2 as indicated by a broken line in FIG.

  Then, the second motor M2 of the second power transmission unit 16 shown in FIG. 6 is started, the power acts on the transmission gear 99 from the switching gear 98, and the selection shaft 151 of the support body selection means 22 is driven. . The support 21 is moved up and down by the selection groove 152 which is a screw groove of the selection shaft 151, and the support 21 which is to hold the disk D reaches the selection position (a). After the support 21 is stopped at the selected position (a), the rack member 32 and the switching member 38 are moved in the Y1 direction by the first motor M1 of the first power transmission unit 12, which is shown by a solid line in FIG. Thus, the drive unit 14 is rotated to the intervention position shown in FIG. 10, and the home position is set.

  In this home position, the lock switching member 42 of the first power transmission unit 12 shown in FIG. 1 is moved to the Y2 side, the lock member 54 is moved to the X2 side, and the lock member 61 shown in FIG. Is moved to the X2 side, the restraint shaft 77 fixed to the unit support base 13 is held by the restraint portion 56a of the lock control hole 56 formed in the lock member 54, and the restraint shafts 78, 78 are locked members. The lock control holes 62 and 62 formed in 61 are held by the restraining portions 62 a and 62 a. Therefore, the unit support base 13 is held in a lowered posture so as to approach the bottom surface 6 of the housing 2. The drive unit 14 mounted on the unit support base 13 is also lowered to a position approaching the bottom surface 6. As shown in FIG. 10, the rotation drive unit 83 on the drive unit 14 that has moved to the intervention position is in the selected position. It is located below the support 21 in (a).

(Disc loading operation)
As shown in FIG. 10, the disc is inserted at the home position where the drive unit 14 is in the intervention position and the transfer unit 17 is in the standby position. In FIG. 13, the disk insertion operation shown in S <b> 1 (step 1) is performed by an operation of designating a vacant support 21 in the housing 2 with reference to the display on the operation unit. When the designated support 21 is already at the selected position (a), the process immediately proceeds to S2. However, when the designated support 21 is not at the selected position (a), as described above, the drive unit 14 Moves to the retracted position, and after the designated support 21 has reached the selection position (a) by the support selection means 22, the process proceeds to S2.

Before the disk carry-in operation starts, the operation of the pair of optical detection elements F1 and F2 mounted on the transfer unit 17 is confirmed. The operation check, the drive unit 14 feed is set in the intervention position and transfer unit 17 is set to the standby position, as shown in FIG. 11, located at the position where the detection member 251 and sensing member 252 is closest The detection switches SW1 and SW2 are both ON, and it is detected that the insertion port 23 is closed by the shutter 24 as shown in FIG. It is executed when all the conditions are satisfied, that is, when it is determined that the disk D is not inserted from the insertion slot 23.

  The mechanism control unit 301 confirms whether the shutter 24 of the insertion port 23 is closed in S2 shown in FIG. 13 on the assumption that the above conditions are satisfied. Then, the shutter 24 is closed. When it is determined that the shutter 24 is closed, the process proceeds to S4 to check the operation of the optical detection elements F1 and F2. After confirming the operation, the shutter 24 of the insertion slot 23 is opened.

  This operation check is performed by causing each light-emitting element of the optical detection elements F1 and F2 to emit light and receiving light by the light-receiving element, and detecting whether or not the light-receiving output exceeds a specified value (threshold value). Is called. In the operation check, the light emitting operation of the light emitting element is performed at least once in a short time. Preferably, the light emitting operation is intermittently performed a plurality of times, and it is determined that the received light output exceeds the specified value at all light emission, and is determined to be abnormal (defective) when the specified value is not exceeded even once.

  As a result of the operation check, “when both of the two optical detection elements F1, F2 are normal” “when only one of the two optical detection elements F1, F2 is normal and the other is defective” “two optical detection elements F1, Three states of “when both F2 are malfunctioning” are confirmed.

  In the disc carry-in operation when “the two optical detection elements F1 and F2 are both normal”, it is detected whether or not the disc D is carried in from the insertion slot 23 using the optical detection elements F1 and F2. The optical detection elements F1 and F2 are used to constantly monitor whether the disk D during the loading operation is normal, that is, whether the diameter dimension or the diameter dimension of the center hole Da is within the specified range. Is determined to be a non-standard disk D, the disk D can be immediately forcibly ejected.

  In this type of disk storage type disk device 1, it is necessary that only a disk having a normal shape is held on the support 21 when the disk D is carried into the housing 2 from the insertion port 23. For example, when a disk D having an unusually small outer shape is carried in, the disk D is not reliably delivered from the transfer rollers 112 and 113 to the support 21, and the disk D may remain in the housing 2 in a free state. There is. When such a malfunction occurs, not only a new disk D cannot be inserted, but also a disk already held on the support 21 cannot be carried out. In addition, if an abnormally shaped disk is held on the support 21, the support is selected when the disk D falls from the support 21 or is unloaded from the support 21 during the subsequent support selection operation. There is a risk that a disc may not be reliably delivered from the body 21 to the transfer unit 17.

  In order to detect the loading of an abnormally shaped disk and allow it to be forcibly ejected, it is necessary that the optical detection elements F1 and F2 operate normally. For this reason, every time an operation for inserting the disk D is performed or each time a disk carry-in operation command is issued from the mechanism control unit 301, the operation of the optical detection elements F1 and F2 is confirmed.

  As a result of the operation check, when it is determined that one of the optical detection elements F1 and F2 is malfunctioning or when both are malfunctioning, the insertion of the disc is not accepted and the operation shifts to the carrying-in operation. In this case, it is possible to display on the display section that the disk storage type disk device 1 is in a failure state, and immediately shift to repair. However, even if the optical detection elements F1 and F2 are malfunctioning, it is not always appropriate to reject the insertion of the disk when other detection elements and mechanisms are normal. Therefore, in this embodiment, even when at least one of the optical detection elements F1 and F2 is determined to be malfunctioning, the mechanism control unit 301 displays that it is in a failure state or indicates that it is in a failure state. The disk loading operation is executed in the state of being stored in the maintenance inspection memory, and the disk D selecting operation and the disk D reproducing operation can be performed as usual until the repair.

  That is, when it is determined in S6 of FIG. 13 that at least one of the optical detection elements F1 and F2 is malfunctioning, the process proceeds to the “detection abnormality response flow” of S7, that is, the control operation shown in FIG. Control shifts to control different from the control operation when the optical detection elements F1 and F2 shown in FIG. 14 are normal.

  Since the operation check of the optical detection elements F1 and F2 in S4 is performed every time an operation for inserting a disk is performed, for example, dust may be attached to the optical detection elements F1 and F2 to temporarily detect a detection failure. If it is determined that the optical detection elements F1 and F2 are normal in the next operation check, the normal control shown in FIGS. 13 and 14 is performed. Can return to operation.

  In the control operation shown in FIGS. 13 and 14, when it is determined in S6 that both of the optical detection elements F1 and F2 are operating normally, the light emitting elements of both the optical detection elements F1 and F2 are energized thereafter. Then, the light emission of both light emitting elements is continued, and the flow proceeds to S8 and subsequent steps. When the optical detection elements F1 and F2 are operating normally, the optical detection elements F1 and F2 and the machine operation type detection switches SW1, SW2 and SW4 are monitored to check whether the disk D is normally loaded. Then, it is determined whether or not the loaded disk D is normal.

  In S8, it is monitored whether any of the optical detection elements F1 and F2 is switched from ON to OFF. In S9, a timer is started when it is detected in S5 that the shutter is opened, and it is monitored whether or not the optical detection elements F1 and F2 are turned off within a predetermined time. If it is determined that the disk D is not inserted, the process proceeds to S10, the shutter 24 is closed, and the process returns to S1 to wait for a new disk insertion operation.

  In S8, when it is determined that one of the optical detection elements F1 and F2 is turned OFF, the process proceeds to S11 and the disk loading operation is performed. In this disk loading operation, first, the third motor M3 of the third power transmission unit 19 shown in FIG. 3 is started with the transfer unit 17 stopped at the standby position approaching the front surface 7 as shown in FIG. Then, the first transfer roller 112 and the second transfer roller 113 rotate in the disk loading direction.

  Since the optical detection elements F1 and F2 face the intermediate portion 114 located between the two transfer rollers 112 and 113, the optical detection elements F1 and F2 are turned off when the disk D enters the intermediate portion 114. Become. At this time, the conveying force does not act on the disk D, and when both the transfer rollers 112 and 113 are started, and when the disk D is further pushed in, the disk D is moved between the both transfer rollers 112 and 113 and the clamping unit 106. It is nipped and transported. Therefore, when the disc D is manually inserted from the insertion port 23, the disc D is smoothly fed into the housing 2 without receiving resistance from the hand.

  In S12 shown in FIG. 13, when the third motor M3 is started and the transfer rollers 112 and 113 are started, a timer is started by the mechanism control unit 301, and one of the detection switches SW1 and SW2 is turned on within a predetermined time. Monitor whether it switches from ON to OFF. If neither of the detection switches SW1 and SW2 is turned OFF within a predetermined time after the third motor M3 is started, it is determined that the disk D has been pulled out before reaching the transfer rollers 112 and 113, and the process proceeds to S14. Then, the third motor M3 is stopped, and the transfer rollers 112 and 113 are stopped.

  In S12, when the detection switch SW1 or SW2 is turned OFF, the rotation of the transfer rollers 112 and 113 is continued as it is, and the disk D is carried into the housing 2 along the insertion center line Oa shown in FIG. The At this time, when the detection member 251 is pushed in the X2 direction at the outer peripheral edge of the disk D and the detection switch SW3 or the detection switch SW4 is switched from OFF to ON by the detection plate 253, the second shown in FIGS. The second motor M2 of the power transmission unit 16 is started, the meshing of the switching gear 98 and the output gear 94 is released, and the switching member 91 is driven in the (e) direction. The drive lever 135 is rotated counterclockwise by the drive inclined portion 137 b of the unit control slot 137 formed in the switching member 91, and the transfer unit 17 rotates counterclockwise around the fulcrum shaft 131. And the transfer operation position shown in FIGS. 9 and 11 is set.

  Even after the transfer unit 17 is set to the transfer operation position and stopped, the operation of the third motor M3 continues, and the disk D is carried into the housing 2 by the rotation force of the transfer rollers 112 and 113. The disk D is fed into the support 21 at the selected position (a).

  The detection areas of the pair of optical detection elements F1 and F2 provided in the transfer unit 17 are arranged at equal distances on the left and right with respect to the movement locus of the center Do of the loaded disk D, and the distance between the detection areas. Is set to be larger than the center hole Da of the disk D and larger than the diameter of the transparent region Db of the disk D normally assumed. Therefore, by monitoring whether the optical detection elements F1 and F2 are always OFF during the conveyance of the disk, whether or not the disk D is normally loaded and whether an abnormal disk with an excessively large center hole Da is loaded. It is possible to determine whether or not there is. However, when the transparent area Db is wider than usual and a disc D that can be read normally is loaded, the transparent area Db crosses either one of the optical detection elements F1 and F2, and its detection output is turned ON. There is a risk of switching to.

  Therefore, in this embodiment, during the time zone when the transparent area Db may cross the optical detection elements F1 and F2, the detection output of the mechanical operation type detection switches SW1, SW2, and SW4 is monitored, and the disk D is It is detected whether the disk is normally loaded and whether it is a disk having a normal shape. After the transparent area Db passes through the detection areas of the optical detection elements F1, F2, the optical detection elements F1, F2 are detected. The detection output is used to perform the monitoring.

  That is, as shown in FIG. 9, when the detection switches SW1 and SW2 after the start of loading of the disk D are OFF, the transparent region Db may pass through the optical detection elements F1 and F2. In some cases, the detection outputs of the optical detection elements F1 and F2 are ignored. Therefore, in S12, after the detection switch SW1 or SW2 is turned OFF, the mechanism control unit 301 moves to S15 and monitors whether both the detection switches SW1 and SW2 are returned from OFF to ON. The detection outputs of the optical detection elements F1 and F2 are ignored.

  When the loaded disk D is a normal one having a diameter of 12 cm, the detection member 251 is pushed in the X2 direction at the outer peripheral edge of the disk D between S12 and S15, and the detection switch SW4 is turned on. It should be. Therefore, in S12, after the detection switch SW1 or SW2 is turned OFF and before both detection switches SW1 and SW2 are turned ON in SW15, if the detection switch SW4 is never turned ON, the disk D is forced. (This operation is omitted in the flowchart of FIG. 13).

  In S12, after determining that the detection switch SW1 or SW2 has been turned OFF, the mechanism control unit 301 starts a timer. When the detection switches SW1 and SW2 do not return to ON within a predetermined time in S16, the disk D Is not carried in normally, the process proceeds to S17 and the disk D is forcibly carried out. In the forced carry-out operation of S17, the third motor M3 is reversely rotated, the first transfer roller 112 and the second transfer roller 113 are rotated in the carry-out direction, and the second motor M2 is started, and FIG. 7 is moved in the direction (d) and the transfer unit 17 is rotated in the clockwise direction to return to the standby position shown in FIG.

  In this forced ejection operation, the disk D is completely ejected from the insertion slot 23, the detection members 251 and 252 return to the closest initial position, and the ejection operation is stopped when both the detection switches SW1 and SW2 are turned on. Alternatively, when the detection member 251 returns to the position indicated by (i) in FIG. 10 and the detection switch SW3 is turned from ON to OFF, the forced ejection operation is stopped, and a part of the disk D is The discharging operation may be stopped while being held in the housing 2.

  As can be seen from FIG. 9, the transfer unit 17 moves to the transfer operation position, and the detection members 251 and 252 return to the initial position while the disk D is being carried in by the rotation of the transfer rollers 112 and 113, and in S15 When it is detected that both of the detection switches SW1 and SW2 are turned on, the center hole Da and the transparent region Db of the disk D are both advanced to positions where there is no possibility of being detected by the optical detection elements F1 and F2. is doing. Therefore, if it is determined in S15 that both the detection switches SW1 and SW2 are turned on, the process proceeds to S18 in FIG. 14 and the detection outputs of the optical detection elements F1 and F2 are monitored.

  However, after the detection switches SW1 and SW2 are both turned on in S15, the time is measured in S19, and when it is determined that both the optical detection elements F1 and F2 are not turned off within a predetermined time from S15, the disk D is If it is determined that the disk D has not been normally loaded, the process proceeds to S17, and the disk D is forcibly ejected.

(Disc loading detection)
After S18, the optical detection elements F1 and F2 and the detection element Fe for detecting the completion of loading are monitored to detect whether or not the disk D is normally loaded on the support 21 at the selected position (a). .

  First, in S20, by detecting that both of the optical detection elements F1 and F2 continue to be OFF, as shown in FIG. 9, with the transfer unit 17 set to the transfer operation position, the disk D Can be recognized as being successfully loaded. In S21, at the time before detecting that the detection element Fe for detecting the completion of loading has been switched off, it is confirmed in S20 that at least one of the optical sensing elements F1, F2 has been switched from OFF to ON. If detected, the process immediately proceeds to S17 and the disk D is forcibly ejected. This means that the outer circumference of the disk D is removed from the optical detection elements F1 and F2 before the leading edge of the disk D being transported reaches the loading detection member 200 shown in FIG. Occurs when a disk D of a specified value or less is loaded. Thus, by continuously monitoring the detection outputs of the optical detection elements F1 and F2 until the detection element Fe for detecting the completion of loading switches to OFF, the disk D having a diameter smaller than the specified value is selected at the selected position (a). It can be prevented from being transferred to the support 21 located in the area.

  When the disk D is forcibly ejected, if the transfer rollers 112 and 113 are reversed in the ejection direction immediately after it is detected in S20 that one of the optical detection elements F1 and F2 is ON, At that time, the disk D is supposed to be sandwiched between the transfer rollers 112 and 113 and the sandwiching unit 106, so that the disk D is discharged from the insertion slot 23 without dropping into the housing 2. Can do.

  In S22, the timer is started from the time when both the detection switches SW1 and SW2 are turned on in S15, and the detection outputs of the optical detection elements F1 and F2 are both in the OFF state. Then, it is monitored whether or not the detection element Fe is turned on within a predetermined time. If the detection element Fe is not turned ON within a predetermined time, the disk D being transported may not be able to move into the support 21 and may be stopped. In this case as well, the process proceeds to S17 and the disk is immediately D is forcibly discharged.

  If it is detected that the detection element Fe is turned on in S21 while the optical detection elements F1 and F2 are kept OFF, the mechanism control unit 301 causes the disk D having a normal outer diameter to be selected at the selected position ( It is determined that it is loaded on the support 21 in a). At this time, instead of immediately stopping the rotation of the transfer rollers 112 and 113, the process proceeds to S 23, and energization of the third motor M 3 is continued to move the transfer rollers 112 and 113 in the loading direction for a predetermined time. Continue to provide driving force. The time is about several hundreds msec starting from when the sensing element Fe is switched from OFF to ON. The rotation duration time of the transfer rollers 112 and 113 is not less than one rotation of the transfer rollers 112 and 113, and more preferably not less than two rotations.

  As shown in FIG. 9, the detection element Fe for detecting the completion of loading is operated by the rotation operation of the loading detection member 200. When the disk D is not loaded on the support 21, the light shielding portion 203 of the loading detection member 200 blocks the light of the detection element Fe, and when the disk D is loaded on the support 21 at the selected position, The arm 201 of the loading detection member 200 is pushed by the disk D and rotates counterclockwise, and the detection element Fe is switched from OFF to ON. However, the detection element Fe of the optical detection system is switched from OFF to ON before the loading detection member 200 completely rotates counterclockwise, and the mounting position of the detection rotation member 200 and the detection element Fe Tolerances are also expected. Therefore, there is a possibility that the detection element Fe is switched from OFF to ON before the disk D is completely inserted into the support 21 and the disk D is completely held by the holding claws 155, 156, and 157.

  Therefore, in S23, the disk D can be reliably held in the support 21 by continuing the rotation of the transfer rollers 112 and 113 in the carry-in direction only for a short time after the detection element Fe is switched ON. . That is, by applying a transfer force to the disk D with the transfer rollers 112 and 113, the outer peripheral edge of the disk D is pressed against the stopper portion, and at this time, the center hole Da of the disk D is located below the rotary table 86. It coincides with the convex portion 86b. In addition, this stopper part may be formed integrally with the support body 21 or fixed to the support body 21, and may rotate the loading detection member 200 counterclockwise. A restriction part for restriction may be provided, and the loading detection member 200 may function as a stopper part.

  Further, when such control is performed, the detection element Fe and the loading detection member 200 are switched so that the detection element Fe is switched from OFF to ON before the disk D is completely held in the support 21. Can be incorporated. By operating the detection element Fe and the loading detection member 200 before completion of actual disk loading, it is possible to reliably obtain the switching detection output of the detection element Fe. For example, when setting is made so that the detection output of the detection element Fe is switched at the same timing when the disk D is completely loaded on the support body 21, the position of the detection element Fe or the detection rotation member 200 is shifted. There is a possibility that a malfunction that the switching output of the sensing element Fe cannot be obtained may occur. On the other hand, in this embodiment, since the detection output switching time of the detection element Fe can be set before the actual loading of the disk D, the mounting tolerance of the detection element Fe and the loading detection member 200 is set. Can also be set relatively rough.

  In addition, when the detection rollers Fe and F2 continue to rotate after the detection element Fe is switched ON, when the detection output of at least one of the optical detection elements F1 and F2 is switched from OFF to ON, It is preferable to determine that the outer diameter of the disk D to be loaded on the support 21 is abnormal, and immediately proceed to S17 to forcibly eject the disk D.

  In this manner, after the disk D is loaded on the selected support 21, the third motor M3 is stopped in S24, and the rotation of the transfer rollers 112 and 113 is stopped. At this time, the transfer unit is in the transfer operation position shown in FIGS. 9 and 11, and the disk D is held by the stopped transfer rollers 112 and 113 and the holding unit 106. At this time, since the center hole Da of the disk D coincides with the convex part 86b of the rotary table 86 located therebelow, when the process proceeds to S25 and the disk clamping operation is performed, the convex part 86b is moved to the central hole. It can be reliably guided into Da.

(Detection abnormality response flow)
In S6 of FIG. 13, when it is determined as a result of the operation that at least one of the optical detection elements F1 and F2 is malfunctioning, the flow proceeds to a detection abnormality handling flow in S7.

  When only one of the optical detection elements F1 and F2 is malfunctioning, in the normal operation flow of FIGS. 13 and 14, the detection operation of S8, S18 and S20 is performed normally of the optical detection elements F1 and F2. It is possible to do it only on one side. By using only one of the optical detection elements F1 and F2, the same operation flow as in FIGS. 13 and 14 can be realized.

  However, in the detection abnormality handling flow of the disk storage type disk device 1 of this embodiment, as shown in FIG. 15, it is normal to detect whether or not the disk D is normally loaded and to be loaded. The detection outputs of the optical detection elements F1 and F2 are not used for detecting whether or not the disk has an outer diameter. Thus, even when at least one of the optical detection elements F1 and F2 is malfunctioning, it is possible to operate the disk device 1 normally by executing the flow shown in FIG. .

  In the detection abnormality handling flow, when only one of the optical detection elements F1 and F2 is determined to be malfunctioning in S6 shown in FIG. 13, the process proceeds to S31. Below S31, the case where only the optical detection element F1 is normal and the optical detection element F2 is malfunctioning will be described. However, the same applies when only the optical detection element F2 is normal.

  In this case, insertion detection of the disk D is performed using the optical detection element F1 that operates normally. That is, the light emitting element of the normal optical detection element F1 is energized, the light emission of the light emitting element is continued, and the normal optical detection element F1 is monitored in S32. When the detection output of the optical detection element F1 is switched from ON to OFF, it is determined that the disk D has been inserted, the process proceeds to S34, the third motor M3 is started, and the disk D is loaded. . In S33, the time is measured after the shutter is opened, and if the optical detection element F1 is not switched OFF within a predetermined time, the process proceeds to S10 and the shutter 24 is closed.

  When the insertion of the disk D is detected by using one of the optical detection elements F1 in this way, the transfer rollers 112 and 113 can be started in the loading direction before the disk D hits the transfer rollers 112 and 113, and the insertion port 23 can be started manually. The disk D inserted in the above is smoothly carried into the housing 2 without receiving a large resistance.

  When the disc is being loaded, it is checked in S35 whether or not the detection switch SW1 or SW2 is turned off. If it is determined in S36 that the detection switch SW1 or SW2 is not turned off within a predetermined time, the process proceeds to S17. The transfer rollers 112 and 113 are stopped.

  When the detection switch SW1 or SW2 is turned off in S35, it is determined whether or not the detection switch SW4 is turned on in S37, and within S38, within a predetermined time after the detection switch SW1 or SW2 is turned off. When it is determined that the detection switch SW4 is not turned ON, the process proceeds to S17 and the disk D is forcibly ejected. When the detection switch SW4 is turned on, in S39, it is monitored whether both the detection switches SW1 and SW2 are turned on. In S40, the detection switch SW1 or SW2 is turned on within a predetermined time after the detection switch SW1 or SW2 is turned off. If both SW1 and SW2 do not return to ON, the process proceeds to S17 and the disk D is forcibly ejected.

  In the flow from S35 to S40, whether or not the detection members 251 and 252 are moved away from each other by the outer peripheral edge of the disk D, and further, the detection member 252 is pushed in the X2 direction by the normal outer diameter disk. Whether or not the detection switch SW4 is turned on can be detected, and it can be confirmed whether or not the disk D has been carried into the housing 2 and the detection members 251 and 252 have returned to the initial positions approaching each other. As described above, when either one of the optical detection elements F1 and F2 is malfunctioning, the detection switch SW1, SW2, and SW4 are monitored to determine whether the disk D is loaded or the outer diameter is normal. Can be detected even if it is not as accurate as when used in combination with the optical detection elements F1 and F2.

  In S41 shown in FIG. 15, it is monitored whether or not the detection element Fe for detecting completion of loading is switched from OFF to ON within a predetermined time after both of the detection switches SW1 and SW2 are returned to ON. If the detection element Fe is not switched to ON within a predetermined time in S42, the process proceeds to S17 and the disk D is forcibly ejected. When the detection element Fe is turned on, it is determined that the disk D is loaded on the support 21 at the selected position (a), and the process proceeds to the disk pushing operation of S23.

  In the detection abnormality handling flow of S7, when it is determined that both of the optical detection elements F1 and F2 are malfunctioning, the flow proceeds to S45 and subsequent steps.

  In this flow, since the optical detection elements F1 and F2 cannot be used for insertion detection, the detection outputs of the detection switches SW1 and SW2 are monitored to detect whether or not the disk D has been inserted from the insertion slot 23. That is, the time is measured starting from when the shutter 24 is opened in S5, and in S46, it is monitored whether the detection switch SW1 or SW2 is switched from ON to OFF within a predetermined time. When it is determined in S47 that the detection switch SW1 or SW2 is not switched within a predetermined time, the process proceeds to S10 and the shutter 24 is closed. In S46, when it is detected that the detection switch SW1 or SW2 has been turned OFF, the process proceeds to S48, and the disk loading operation is performed.

  When the detection switches SW1 and SW2 are used for disc insertion detection when both of the optical detection elements F1 and F2 are malfunctioning, the disc D is slightly opened from the insertion slot 23 as shown in FIG. 2 and the disc D is pushed between the transfer rollers 112 and 113 and the clamping unit 106, the detection members 251 and 252 move, the detection switch SW1 or SW2 is turned OFF, and the transfer roller 112 is turned off. 113 start. Therefore, compared with the case where the optical detection elements F1 and F2 are used for disc insertion detection, the resistance force felt by the hand when the disc is inserted is increased. However, the disk D can be subsequently carried into the housing 2.

  As shown in FIG. 15, after shifting to the disk carry-in operation in S48, the process shifts to S37, and thereafter, the operation control of the same flow as when only one of the optical detection elements F1, F2 is malfunctioning is performed.

(Disc clamp operation)
The clamping operation after loading the disc shown in S25 of FIG. 14 is performed based on the flow shown in FIG.

  In the disk clamping operation, as shown in FIGS. 9 and 11, the first power transmission unit 12 shown in FIG. 1 is further obtained in a state where the drive unit 14 stops at the intervention position and the transfer unit 17 stops at the transfer operation position. The rack member 32 is driven in the Y1 direction. In this process, the switching member 38 does not first move in the Y1 direction, the connecting rotation lever 43 is driven in the counterclockwise direction, and the lock member 54 is moved in the X1 direction, and the lock shown in FIG. The member 61 is also moved in the X1 direction. The restraint shaft 77 is lifted by the lifting portion 56 b of the lock control hole 56 provided in the lock member 54, and the restraint shafts 78, 78 are lifted by the lifting portion 62 b of the lock control hole 62 provided in the lock member 61. Therefore, the unit support base 13 is lifted, and the convex portion 86b (see FIG. 4) of the rotary table 86 provided in the drive unit 14 at the intervention position is held on the support 21 at the selected position (a). It enters the center hole Da of D.

  Thereafter, the connecting rotation lever 43 stops, the lock switching member 42 stops, the state where the unit support base 13 is lifted is maintained, and the switching member follows the movement of the rack member 32 in the Y1 direction. 38 moves in the Y1 direction, and the drive slider 85 positioned on the lower surface of the unit support base 13 is moved in the Y1 direction by the drive pin 41 fixed to the switching member 38. At this time, the clamp switching member 80 provided in the drive unit 14 in the intervention position moves to the rotation free end side of the drive unit 14, and the clamp pawl 86 d in the rotary table 86 moves to the periphery as shown in FIG. 5. Thus, the disc D is clamped by the support surface 86a of the rotary table 86 and the clamp pawl 86d.

  Whether or not the series of clamping operations is completed is determined by moving the rack member 32 moving in the Y1 direction to the clamping operation completion position, and the operation detection switch SWa shown in FIG. Is detected. When the operation detection switch SWa is turned on, the first motor M1 of the first power transmission unit 12 is stopped and the rack member 32 is stopped.

  In S51, when it is detected that the operation detection switch SWa is turned on, in S52, the mechanism control unit 301 gives a drive command to the servo motor driver 305 shown in FIG. The spindle motor Ms of the rotation drive unit 82 is energized for a short time. In S53, it is detected whether or not the spindle motor Ms has rotated at this time. Since the spindle motor Ms is a servo motor and the FG is provided in the rotation detection unit, when the spindle motor Ms rotates, the rotation detection pulse from the FG is fed back to the servo motor driver 305, thereby the mechanism control unit 301. Then, it can be recognized that the spindle motor Ms has rotated. It is also possible to detect whether or not the spindle motor Ms has rotated by monitoring the drive current applied to the coil of the spindle motor Ms.

  When the clamping claw 86d shown in FIG. 5 is in the clamping posture and the clamping operation is completed, the disk D is held between the transfer rollers 112 and 113 of the transfer unit 17 and the holding unit 106, so that the spindle motor Ms is energized. However, the spindle motor Ms should not normally rotate. Therefore, when the rotation of the spindle motor Ms is detected within a predetermined time after starting the spindle motor Ms in S54, the process proceeds to S55, and the disk D having a normal size is normally clamped on the rotary table 86. Judge.

  In S53, when the spindle motor Ms rotates, the inner diameter of the center hole Da of the disk D held on the support 21 is larger than the prescribed one, and the center hole Da of the disk D is appropriately clamped by the clamp pawl 86d. It is highly possible that the disk D cannot be used.

  In this case, the process proceeds to S56, where the first motor M1 of the first power transmission unit 12 shown in FIG. 1 is started, the rack member 32 is moved in the Y2 direction, and the drive pin 41 of the switching member 38 is used. Then, the drive slider 85 shown in FIG. 3 is moved in the Y2 direction, the clamp switching member 80 is operated, and the clamp pawl 86d is opposed to the convex portion 86b of the rotary table 86 as shown in FIG. . Further, the rack member 32 is moved in the Y2 direction, the connecting rotation lever 43 is rotated, the lock switching member 42 is moved in the Y2 direction, and the lock member 54 and the lock member 61 are moved in the X2 direction. The restraint shaft 77 is restrained by the restraint portion 56 a of the lock control hole 56 provided in the lock member 54, and the restraint shafts 78, 78 are restrained by the restraint portion 62 a of the lock control hole 62 provided in the lock member 61. Then, the unit support base 13 is lowered. Accordingly, the drive unit 14 is also lowered, and the convex portion 86 b of the rotary table 86 comes out of the center hole Da of the disk D.

  Thereafter, the process proceeds to S57, where the third motor M3 is started to rotate the transfer rollers 112 and 113 in the discharging direction, and the second motor M2 is operated to move the transfer unit 17 to the standby position shown in FIG. The disc D is ejected from the insertion slot 23 after returning. In this discharge operation, the detection member 251 moves in the X2 direction at the outer peripheral edge of the disk D, the detection switch SW3 is turned ON by the detection plate 253, and the detection member as the disk D is discharged from the insertion port 23. When 251 returns to the X1 direction and the detection switch SW3 is turned OFF, the rotation of the transfer rollers 112 and 113 is stopped. Therefore, the disc D to be ejected is held in a state where a part thereof remains in the housing 2.

  In S53, it is detected that the spindle motor Ms has rotated. As described above, not only when the disk D having an abnormal dimension whose center hole Da has an excessively large inner diameter is loaded, but also has a normal dimension. Even in the case of a disc, when the clamping operation is completed, it can be assumed that the clamping claw 86d protrudes to the clamping posture in a state where the convex portion 86b of the rotary table 86 is not fully within the center hole Da of the disc D. .

  However, in this embodiment, as shown in S53 after the clamping operation in S25 of FIG. 14, when it is detected that the spindle motor Ms has rotated, the operation is immediately repeated without performing a retry of repeating the clamping operation again. , The clamp operation is released and the disk D is ejected. As described above, when it is determined that the spindle motor Ms is rotated in S53 when a new disk D is carried in, even if it is a normal disk D, the operation is surely shifted to the ejection operation. In this way, by forcibly ejecting a disk in which a clamping error has occurred once without causing the clamping operation to be performed again, an abnormal disk that may interfere with the clamping operation is held in the support body 21, and the disk is The possibility of being stored in the storage area 20 is extremely low.

  In addition, when the disk D forcedly ejected in S57 protrudes from the insertion port 23, the holding is continued until the disk D is pulled out by hand. Even when the disk protruding from the insertion port 23 is pushed again with a finger, the detection member 251 moves in the X2 direction, and the detection switch SW3 is turned on again, the third motor M3 that drives the transfer rollers 112 and 113 is turned on. Without starting, it is possible to prevent the disk D that has been forcibly ejected from being carried in again. This is the same after the forced disk ejection in S17 shown in FIG.

  As described above, in the disc storage type disc device 1, the abnormal disc whose outer diameter is extremely smaller than the standard is held on the support 21 at the selected position (a) by the flow shown in FIGS. The flow shown in FIG. 16 can prevent the disk 21 that is not clampable such that the inner diameter of the center hole Da is large or the center hole Da is deformed from being held by the support 21. Yes. Further, according to S20 of FIG. 14, when the disk D is being carried in, the optical detection elements F1 and F2 are constantly monitored, so that the recording surface is damaged and the disk is partially transparent. It is possible to prevent the disk from being held on the support 21.

(Clamping operation after selecting support)
When selecting and driving any of the disks D stored in the disk storage area 20, as shown in FIG. 10, the drive unit 14 is moved to the retracted position, and the transfer unit 17 is moved to the standby position. . Then, the switching gear 98 shown in FIG. 6 is meshed with the output gear 94 and the transmission gear 99, the selection shaft 151 of the support body selecting means 22 is driven by the power of the second motor M2, and any of the support bodies 21 is driven. Is moved to the selected position (a) (S60 in FIG. 17).

  Then, as shown in FIG. 10, the drive unit 14 is rotated to the intervention position, the unit support base 13 is lifted by the lock members 54 and 61, and the convex portion 86b of the rotary table 86 is supported at the selected position (a). The disc 21 held in the body 21 is inserted into the center hole Da, and the clamp switching member 80 is operated to cause the clamp pawl 86d to protrude to the clamp posture (S61 in FIG. 17).

  When it is detected in S62 of FIG. 17 that the operation detection switch SWa shown in FIG. 3 is turned on, the process proceeds to S63, where the second motor M2 shown in FIGS. Is moved in the direction (e), and the transfer unit 17 is slightly rotated counterclockwise. At this time, the third motor M3 is not started, and the transfer rollers 112 and 113 are not rotated. By this operation, a part of the transfer unit 17 such as the clamping unit 106 of the transfer unit 17 or the transfer rollers 112 and 113 is pressed against the outer peripheral surface of the disk after the clamping is completed and is clamped to the rotation drive unit 82. The disk D is held so as not to rotate.

  In a state where the outer periphery of the disk D is pressed by the transfer unit 17, the process proceeds to S64, and a drive current is applied to the spindle motor Ms. If the rotation of the spindle motor Ms is not detected within the predetermined time in S66, the process proceeds to S67, and it is determined that the disk D held on the selected support 21 has been clamped normally.

  When the rotation of the spindle motor Ms is detected in S65, the convex portion 86b of the rotary table 86 does not completely enter the center hole Da of the disk D held on the selected support 21. There is a high probability of a clamping operation failure. That is, when a new disk D is carried in, the flow shown in FIGS. 13 and 14 and the flow shown in FIG. The disk D stored in the disk storage area 20 has a high probability of being a normal size. Therefore, in this case, the following confirmation operation and retry are performed.

  When the rotation of the spindle motor Ms is detected in S65, the process proceeds to S68 and the focus servo mechanism of the optical head 83 is locked. In the focus servo mechanism, the lens holder that holds the objective lens 83a is held by an elastic member such as a wire spring so that it can be finely moved in the direction along the optical axis. The lens holder has a focus servo coil, Magnets that apply a magnetic field to the focus servo coil face each other. When a predetermined current of the focus servo coil is applied and the focus servo mechanism is locked, the objective lens 83a is held at a position where the detection light can be focused on the recording surface of the disk. When the detection light emitted from the light emitting element in the optical head 83 is applied to the recording surface of the disk from the objective lens 83a and the return light is detected by the light receiving element, the recording surface of the disk D exists at the in-focus position. Whether it is present or not can be detected.

  If it is determined in S69 that normal focus return light has been detected from the recording surface of the disk, it can be determined that the lower surface of the disk D is normally placed on the support surface 86a of the turntable 86. Therefore, at this time, the process proceeds to S67, and it is determined that the disk is normally clamped.

  In S69, when it is determined that normal focus return light is not detected from the recording surface of the disc, the process proceeds to S70, where it is determined whether or not the confirmation by the focus operation has exceeded a predetermined number (for example, 3 times). If not, the process proceeds to S65 again to rotate the spindle motor Ms. If it is determined in S70 that the predetermined number of times has been exceeded, the process proceeds to S71, and the disk ejection operation is performed.

  The disc ejection operation in S71 is the same as the normal ejection operation for ejecting the disc D held on the support 21 at the selected position (a).

  That is, while the transfer rollers 112 and 113 are rotated in the discharge direction, the transfer unit 17 is rotated counterclockwise and moved to the transfer operation position shown in FIGS. By rotating the transfer rollers 112 and 113 in the discharge direction, the disk D can be held between the transfer rollers 112 and 113 and the holding unit 106. The transfer rollers 112 and 113 are stopped while the disk D is sandwiched, and the clamp pawl 86d is retracted to the non-clamping posture shown in FIG. Thereafter, the holding claws 155, 156, and 157 are rotated to release the holding of the disk D in the support 21. Further, the lock members 54 and 61 are moved in the X2 direction, the unit support base 13 is lowered, and the convex portion 86b of the rotary table 86 provided in the drive unit 14 is extracted downward from the center hole Da of the disk D. Then, the transfer rollers 112 and 113 are rotated in the discharge direction, the transfer unit 17 is rotated to the standby position shown in FIG. 10, and the disk D is discharged from the insertion port 23. At this time, when the detection switch SW3 is turned on and further turned off, the transfer rollers 112 and 113 are stopped.

(Disk drive operation)
When it is determined in S55 of FIG. 16 or S67 of FIG. 17 that the disk D is normally clamped on the rotary table 86, the holding claws 155, 156, and 157 shown in FIG. The holding of the disk D by the support 21 in () is released.

  Thereafter, the first motor M1 of the first power transmission unit 12 shown in FIG. 1 is started, and the lock switching member 42 is further moved in the Y1 direction. At this time, the switching member 38 does not move, the drive slider 85 is not driven, and the drive unit 14 maintains the state moved to the intervention position. Then, the connecting rotation lever 43 is driven counterclockwise, and the lock switching member 42 is driven in the Y1 direction. At this time, the lock member 54 is moved in the X1 direction, and the lock member 61 shown in FIG. 2B is moved in the X1 direction.

  A restraint shaft 77 and a restraint shaft 78 provided in the unit support base 13 by a relief portion 56c of the lock control hole 56 provided in the lock member 54 and a relief portion 62c of the lock control hole 62 provided in the lock member 61. 78 is in a free state, and the unit support base 13 and the drive unit 14 supported by the unit support base 13 are elastically supported by the dampers 71, 72, and 73. Therefore, the disk D can be rotationally driven by the spindle motor Ms, and the reproducing operation and the recording operation can be performed by the optical head 83.

1 is an exploded perspective view showing the overall structure of a disk storage type disk device according to an embodiment of the present invention; FIG. 2 is a front view of the disk storage type disk device of the present invention as viewed from the front surface of the housing, in which (A) mainly shows a transfer unit in the housing, and (B) mainly shows a support, support selection means, and drive. Showing unit and even shutter, The top view which shows the unit support base and drive unit of the whole disk storage type disk apparatus, A side view showing the rotation drive unit in an unclamped state, A side view showing the rotation drive unit in a clamped state, The top view which shows the structure of the 2nd power transmission part, and the transfer unit moved to the standby position, The top view which shows the structure of the 2nd power transmission part, and the transfer unit moved to the transfer operation position, An exploded perspective view showing the structure of the rotation fulcrum of the transfer unit, showing the third power transmission unit, A plan view showing the structure of various detection means, The top view which shows the home position which waits for insertion of a disk of a disk storage type disk device, The top view which shows the state in which the disk of the disk storage type disk apparatus was loaded in the support body, A block diagram showing a circuit configuration of a disk storage disk device; Flow chart of detection operation when loading a disk Flow chart of detection operation when loading a disk A flowchart showing a detection abnormality handling flow; A flowchart showing the clamping operation when the disc is loaded, A flowchart showing a clamping operation after selecting a disk;

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disc storage type disk apparatus 2 Case 14 Drive unit 16 2nd power transmission part 17 Transfer unit 21 Support body 23 Insertion port 24 Shutter 32 Rack member 41 Drive pin 42 Lock switching member 43 Connection rotation lever 54 Lock member 61 Lock member 80 clamp switching member 85 driving slider 86 turntable 86a supporting surface 86b convex portion 86d clamp jaws 91 switching member 200 loaded sensing member 112 first transfer roller 113 the second transfer roller 301 mechanism control unit F1, F 2 optical sensing element Fe detection element SW1, SW2, SW2, SW4 detection switch SWa operation detection switch

Claims (9)

A plurality of supports (21) for holding a disk in a housing (2) in which an insertion slot (23) is formed, and a support selection for moving any one of the supports (21) to a selected position (a) In the disk storage type disk device provided with the means (22) and the rotation drive unit (82) where the disk (D) is installed
In the housing (2), from the standby position approaching the insertion port (23) to the transfer operation position approaching the support (21) at the selected position (a) or approaching the rotation drive unit (82). A transfer unit (17) that moves toward the transfer unit (17), and a transfer roller (112, 113) that transfers the disk (D), a light emitting element and a light receiving element face each other, and the light receiving element Is provided with an optical detection element (F1) that is in a first detection state when detecting light, and in a second detection state when the light receiving element does not detect light ,
Inserted disc from the insertion opening (23) (D) is, after said intervened in the optical path of the optical sensing element of the transfer unit in the standby position (17) (F1), the transporting unit (17) is the transfer operation moves to a position, while the disk (D) is transferred to the installation possible loading completion position to the installable loading completed position or the rotary drive unit to support in a selected position (a) (21) (82 ), optical A disk storage type disk device, wherein the detection state of the detection element (F1) is continuously monitored by a control unit .   The disk storage type disk apparatus according to claim 1, wherein the optical detection element (F1) is disposed closer to the insertion opening (23) than the transfer roller (112, 113).   A detection unit (Fe) for detecting that the disk (D) has reached the loading completion position is provided, and the optical detection is performed when the detection output of the detection unit (Fe) is switched by the disk (D). 3. A disk storage type disk device according to claim 2, wherein the element (F1) is located immediately inside the peripheral edge of the disk (D) having a normal outer diameter on the insertion port (23) side.   When the light receiving element of the optical detection element (F1) detects light before the detection output of the detection part (Fe) is switched, the disk (D) is moved out of the housing (2) by the transfer mechanism (17). 4. The disk storage type disk device according to claim 3, wherein the disk storage type disk apparatus is discharged toward the disk.   The transfer unit (17) is provided with a pair of optical detection elements (F1, F2). The optical detection elements sandwich the center line (Oa) of the width dimension of the transfer region of the transfer unit (17), and the center line 5. The disk storage type disk device according to claim 1, wherein the disk storage disk apparatus is disposed at an equal distance from each other with respect to (Oa).   The distance between the detection area of one optical detection element (F1) and the detection area of the other optical detection element (F2) is larger than the inner diameter of the center hole (Da) of the normal disk (D). The disk storage type disk device as described.   The distance between the detection region of one optical detection element (F1) and the detection region of the other optical detection element (F2) is that of the transparent region (Db) around the center hole (Da) of the normal disc (D). 6. The disk storage type disk apparatus according to claim 5, wherein the disk storage type disk apparatus is larger than a diameter dimension. The shape of the outer peripheral edge of the disk (D) after the center hole (Da) of the disk (D) passes through the optical detection elements (F1, F2) when the disk (D) is carried into the housing (2). The other detection units (SW1, SW2) that are operated based on the above are provided, and the detection unit detects that the loading completion position has been reached after the other detection units (SW1, SW2) are operated. If the light receiving element of the optical detection element (F1) receives light before the (Fe) detection output is switched, the disk (D) is ejected out of the housing (2) by the transfer mechanism (17). disk-storing disk device according to claim 3, wherein that.   When the transfer unit (17) is in the standby position, the transfer roller (112, 113) starts in the disk loading direction when the optical detection element (F1) is blocked by the disk inserted from the insertion slot (23). The disk storage type disk device according to claim 2.

Images