JP4052246B2 - Exchangeable disc player - Google Patents

Description

  The present invention relates to an optical disc (for example, CD-R / RW, DVD-R / -RW / RAM / + R / + RW) as a recording medium for recording a large amount of information in information devices such as various computer systems. The present invention relates to a disk device to be driven.

  Generally, a disk device built in a personal computer (hereinafter referred to as a personal computer) or the like usually includes a disk tray on which a disk is loaded, and the disk tray is configured to move forward and backward. Then, the disk loaded in the disk tray is driven in the main body of the disk device, and information is recorded or reproduced.

On the other hand, as a system that does not use a disk tray, so-called slot-in type disk devices tend to be often employed, which is suitable for making a personal computer thinner and smaller. Since this slot-in type disk device does not use a disk tray for loading (unloading) / unloading (unloading) a disk into the device body, when the operator inserts a majority of the disk into the slot, The loading mechanism is activated and automatically loaded. Clamping of the disk to the spindle motor is realized by moving the spindle motor up and down at a position where the center hole of the disk coincides with the axis of the spindle motor. (For example, Patent Document 1).
JP 2002-352498 A

FIG. 57 is a plan view of the disk device 101 described in Patent Document 1. In FIG.
The traverse 130 is a metal frame that holds a spindle motor 131, a pickup 132, and a driving means 133 that moves the pickup 132. The spindle motor 131 is provided on one end side of the traverse 130, and the pickup 132 is provided so as to be movable from one end side to the other end side of the traverse 130. The pickup 132 is disposed on the other end side of the traverse 130 when stopped. The drive means 133 has a drive motor, a pair of rails for sliding the pickup 132, and a gear mechanism for transmitting the drive of the drive motor to the pickup 132, and the pair of rails are one end side and the other end side of the traverse 130. Are arranged on both sides so as to be connected to each other.

  The traverse 130 is supported on the base body 110 by a pair of insulators 134A and 134B. The pair of insulators 134A and 134B are disposed on the stationary position side of the pickup 132 with respect to the position of the spindle motor 131 and further on the disk insertion port 111 side with respect to the stationary position of the pickup 132. The insulator 134A is provided at one end near the inside of the disk insertion slot 111, and the insulator 134B is provided at the center near the inside of the disk insertion slot 111. The insulators 134A and 134B are provided with a damper mechanism made of an elastic material. The insulators 134A and 134B can be displaced in a direction in which the traverse 130 is separated from the base body 110 by the damper mechanism. That is, the traverse 130 is cantilevered around the insulators 134A and 134B.

  A cam mechanism for displacing the traverse 130 includes a first cam mechanism 141 and a second cam mechanism 151 provided on the main slider 140 and the sub slider 150, respectively. As the main slider 140 and the sub-slider 150 move, the traverse 130 is raised or lowered with the insulators 134A and 134B as axes, and the spindle motor 131 is also raised or lowered accordingly.

When the center hole of the disk is aligned with the axis of the spindle motor 131, the spindle motor 131 is raised, and a clamping operation for fitting the disk to the axis of the spindle motor 131 is performed.
When the spindle motor 131 on which the disk is already clamped is lowered, a clamp releasing operation for releasing the fitting of the disk from the spindle motor 131 shaft is performed.

In the slot-in type thin optical disk device configured as described above, if the thread for holding the optical pickup is in the vicinity of the spindle motor, the thickness of the optical pickup portion becomes an obstacle when the spindle motor moves up and down. For this reason, when loading and ejecting the disc, the sled must be moved to the outer peripheral side of the disc in advance.
Similar to the conventional tray type disk device, this type of disk device is also equipped with a so-called “emergency eject mechanism” that allows the disk to be manually removed in an emergency such as an unexpected power failure.
However, in order to eject the disk, the thread must be positioned on the outermost peripheral side of the disk in advance.
Even if an emergency eject mechanism is provided in case of an unexpected power interruption, emergency ejection, that is, manual disk ejection cannot be performed unless the sled is at the outermost peripheral position.

  The present invention has been made in view of such a conventional problem, and enables emergency eject to be operated effectively.

Therefore, the present invention solves the above problems by means described below. That is, according to the first aspect of the present invention, there is provided an exchangeable disk reproducing apparatus that reproduces information from an information recording disk that is clamped on a spindle motor shaft and driven to rotate. A disc loading mechanism for clamping or releasing the information recording disc on the shaft; a control means for controlling the disc loading mechanism; an emergency eject mechanism for ejecting the information recording disc by manual operation when the power is shut off; and an information recording disc A pickup that reads information from the disk, a pickup moving mechanism that moves the pickup in a radial direction of the information recording disk, and supports the pickup moving mechanism and the spindle motor, and clamps the information recording disk on the spindle motor shaft. Together with the increase of the spindle motor when the a spindle motor elevating mechanism lowering the spindle motor when releasing the clamp of the information recording disc from the axis of the spindle motor, the disk loading mechanism further wherein A disc reproduction state in which information can be reproduced in a state where the information recording disc is clamped on the spindle motor shaft, and a clamp releasing operation by the spindle motor elevating mechanism within the movement range of the pickup moving mechanism. wherein an eject ready in a position that does not interfere with the descent of the spindle motor, while maintaining the disk ejection state respectively to release the clamp of the information recording disc from the axis of the spindle motor during, from the disk playback state During the migration and the disc eject state of the serial disk ejection state of transition to the disk playback state is always configured for passing through the ejector ready state, said control means, said loading mechanism maintains the reproduction state When it is detected that the operation command coming from the host device does not come for a predetermined time, the pickup is controlled to shift to the ejection preparation state.

According to a second aspect of the present invention, there is provided an exchangeable disk reproducing apparatus for reproducing information from an information recording disk which is clamped on a spindle motor shaft and driven to rotate. The interchangeable disk reproducing apparatus is arranged on the spindle motor shaft. A disc loading mechanism for clamping or releasing the information recording disc, a control means for controlling the disc loading mechanism, an emergency eject mechanism for ejecting the information recording disc by manual operation when the power is shut off, and information from the information recording disc , A pickup moving mechanism for moving the pickup in the radial direction of the information recording disk, the pickup moving mechanism and the spindle motor are supported, and the information recording disk is clamped on the spindle motor shaft And a spindle motor elevating mechanism for lowering the spindle motor when releasing the clamp of the information recording disk from the spindle motor shaft, and the disk loading mechanism further includes the spindle motor A disc reproduction state in which information can be reproduced while the information recording disc is clamped on the axis of the shaft, and the pickup is in a clamp releasing operation by the spindle motor lifting mechanism within the movement range of the pickup movement mechanism. In addition, an ejection preparation state in a position that does not prevent the spindle motor from being lowered and a disc ejection state in which the clamp of the information recording disc is released from the spindle motor shaft are respectively maintained, and the disc playback state from the disc reproduction state is maintained. In the transition to the disc ejection state and in the transition from the disc ejection state to the disc reproduction state, the ejection preparation state is always passed, and the control means is configured so that the loading mechanism maintains the reproduction state. When it is detected that a sleep command has been received from the host device, control is performed to shift the pickup to the eject preparation state.

According to a third aspect of the present invention, there is provided an exchangeable disk reproducing apparatus for reproducing information from an information recording disk which is clamped and rotated by a spindle motor shaft, and the exchangeable disk reproducing apparatus is arranged on the spindle motor shaft. A disc loading mechanism for clamping or releasing the information recording disc, a control means for controlling the disc loading mechanism, an emergency eject mechanism for ejecting the information recording disc by manual operation when the power is shut off, and information from the information recording disc , A pickup moving mechanism for moving the pickup in the radial direction of the information recording disk, the pickup moving mechanism and the spindle motor are supported, and the information recording disk is clamped on the spindle motor shaft And a spindle motor elevating mechanism for lowering the spindle motor when releasing the clamp of the information recording disk from the spindle motor shaft, and the disk loading mechanism further includes the spindle motor A disc reproduction state in which information can be reproduced while the information recording disc is clamped on the axis of the shaft, and the pickup is in a clamp releasing operation by the spindle motor lifting mechanism within the movement range of the pickup movement mechanism. In addition, an ejection preparation state in a position that does not prevent the spindle motor from being lowered and a disc ejection state in which the clamp of the information recording disc is released from the spindle motor shaft are respectively maintained, and the disc playback state from the disc reproduction state is maintained. In the transition to the disc ejection state and in the transition from the disc ejection state to the disc reproduction state, the ejection preparation state is always passed, and the control means is configured so that the loading mechanism maintains the reproduction state. When it is detected that information indicating that the host device itself is to end operation is received from the host device, the pickup is controlled to shift to the ejection preparation state.

According to a fourth aspect of the present invention, there is provided an exchangeable disk reproducing apparatus for reproducing information from an information recording disk which is clamped on a spindle motor shaft and driven to rotate. The interchangeable disk reproducing apparatus is arranged on the spindle motor shaft. A disc loading mechanism for clamping or releasing the information recording disc, a control means for controlling the disc loading mechanism, an emergency eject mechanism for ejecting the information recording disc by manual operation when the power is shut off, and information from the information recording disc , A pickup moving mechanism for moving the pickup in the radial direction of the information recording disk, the pickup moving mechanism and the spindle motor are supported, and the information recording disk is clamped on the spindle motor shaft And a spindle motor elevating mechanism for lowering the spindle motor when releasing the clamp of the information recording disk from the spindle motor shaft, and the disk loading mechanism further includes the spindle motor A disc reproduction state in which information can be reproduced while the information recording disc is clamped on the axis of the shaft, and the pickup is in a clamp releasing operation by the spindle motor lifting mechanism within the movement range of the pickup movement mechanism. In addition, an ejection preparation state in a position that does not prevent the spindle motor from being lowered and a disc ejection state in which the clamp of the information recording disc is released from the spindle motor shaft are respectively maintained, and the disc playback state from the disc reproduction state is maintained. In the transition to the disc ejection state and in the transition from the disc ejection state to the disc reproduction state, the ejection preparation state is always passed, and the control means is configured so that the loading mechanism maintains the reproduction state. When it is detected that the information indicating that the power supply state of the host device has been changed is received, the pickup is controlled to shift to the ejection preparation state.

According to the interchangeable disk reproducing device of the first to fourth aspects of the present invention, in a disk device that can have a disk reproducing state, an ejection preparation state, and a disk ejecting state, it receives a command from a host device or By observing the status, it has been configured so that it can move to the eject ready state at as many times as possible compared to the conventional disk device, so when the power failure of the host device occurs, Compared to the same type of disk device, the possibility of ejecting the disk by emergency eject increases. This is a safe material for the user, increases reliability, and makes a good impression in the market.

The outline of the present invention is that, in the prior art, in addition to the process of moving the thread to the outermost peripheral position at the time of an eject command from the eject button or the host device, emergency ejection can be performed whenever a predetermined condition is satisfied. In addition, a control process for moving the carrier block incorporating the pickup to the outermost peripheral position is performed.
This state where the carrier block is moved to the outermost peripheral position is referred to as an ejection preparation state.
The microcomputer performs a control operation to shift to the ejection preparation state when a predetermined condition is satisfied.
The criteria for determining that the disk unit should transition to the eject ready state are:
-No command from the host device for a certain period of time (so-called timeout processing)
-Sleep command from host device
-The shutdown status is notified from the host device
-It was reported that the power supply of the host device was switched from AC power to DC battery.
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In order to facilitate understanding of the present invention, a description will be given including an overview of the overall configuration.

  FIG. 1 is a diagram showing the appearance of a slot-in type disk device 1 according to an embodiment of the present invention, in which an opening 2a is formed at the center of a top plate of a chassis case 2 configured in a shield state. Convex portions 2b projecting inward are formed at the peripheral edge of the opening 2a. A bezel 3 is fixed to the front end of the chassis case 2, and a slot 3a for inserting the disk D and through holes 3b and 3c for releasing emergency are formed in the bezel 3. The bezel 3 is provided with an eject switch 4 for instructing to carry out the stored disk D to the outside of the apparatus and an indicator 5 for displaying the operating state of the disk apparatus 1.

  FIG. 2 is a plan view of the disk device 1 with the top plate portion of the chassis case 2 removed, and a perspective view thereof is shown in FIG. In the figure, a base panel 6 is disposed in a chassis case 2, and a drive system unit A for a disk D is provided in a state of being disposed obliquely downward from the center thereof. In this drive system unit A, in order to release the state in which the center hole Da of the disk D is clamped or clamped, the frame member 8 that can be moved up and down is provided at a plurality of locations (this embodiment) by the buffer support structures 9a and 9b. In the example, it is connected to the base panel 6 at three locations (see FIG. 4 and the blowout diagram).

  The disk device 1 performs an operation for transporting the disk D inserted into the slot 3a to a position where it can be clamped, and an operation for performing clamping thereafter. Hereinafter, the operation of transporting the disk D to a position where it can be clamped is referred to as a pull-in operation, and the operation of clamping is referred to as a clamping operation. The loading operation of the disk device 1 includes a drawing operation and a clamping operation.

Two buffer support structures 9 a provided in the vicinity of the bezel 3 are provided on the spacer 74. With this structure, the portion of the frame member 8 that is supported by the buffer support structure 9a does not move up and down, and the buffer support structure 9a serves as a rotation shaft of the frame member 8.
One buffer support structure 9b provided at the farthest place from the bezel 3 supports the frame member 8 so as to be movable up and down.
Along with the movement of the rack main body 43 and the slide member 51 described later, the frame member 8 is inclined with respect to the recording surface of the disk D during the clamp operation and the clamp release operation described later with the two buffer support structures 9a as the pivots. Move up and down.

  An opening 73 is provided at the end of the base panel 6, and a stopper 72 is provided on the base panel 6 through the opening 73. The stopper 72 is provided to limit the movement of the rack main body 43, which will be described later. When the disk D reaches a position where it can be clamped, if it is slightly pushed by the periphery of the disk D, the movement to the rack main body 43 is limited. The state is released. The detailed operation of the stopper 72 will be described later.

  At the front end of the frame member 8, a clamp head 7 is disposed at a position corresponding to the center of the disk D that has been loaded and stopped. The clamp head 7 is constructed integrally with the turntable 10 and is fixed to a drive shaft of a spindle motor 11 arranged immediately below. The disk D clamped on the clamp head 7 by the spindle motor 11 is driven to rotate. Information is recorded / reproduced.

  Next, symbol B is a head unit supported by the frame member 8, and a carrier block 13 for reciprocating the optical pickup 12 in the diameter direction of the disk D is a guide shaft having both ends fixed to the frame member 8. 14 and 15 and is reciprocated by a thread motor 16 and a gear unit (not shown).

By the way, the disc device 1 according to the present invention is a device that realizes recording and reproduction of DVD-R discs and recording and reproduction of CD-R / RW discs. Since the optical pickup 12 is enlarged, the carrier block 13 is a spindle motor. Thicker than 11. For this reason, when the frame member 8 releases the clamp between the disk D and the spindle motor 11, the carrier block 13 must be positioned farthest from the spindle motor 11 so as not to interfere with the lowering of the spindle motor 11. There is.
FIG. 6 is a diagram schematically showing a clamping operation by the drive system unit A of the disk apparatus 1 according to the present invention.
FIG. 6A shows a state in which the disk D is normally clamped to the clamp head 7. The height of the bottom surface portion of the carrier block 13 is lower than the height of the bottom surface portion of the spindle motor 11.
FIG. 6B shows a state in which the disk D is detached from the clamp head 7 and is rotated clockwise about the buffer support structure 9a. If the carrier block 13 is located at a position close to the spindle motor 11, the bottom surface of the disk device 1 is located before the bottom surface of the spindle motor 11 compared to the state where the carrier block 13 is farthest from the spindle motor 11. The bottom surface of the carrier block 13 comes into contact, and the spindle motor 11 cannot be lowered by the distance d. As a result, the spindle motor 11 cannot lower the disk D by the distance necessary to release the clamp from the clamp head 7. As a result, the clamp release operation cannot be realized due to the presence of the carrier block 13.
As described above, during the clamping operation and the clamping release operation of the disk device 1, it is necessary to move the carrier block 13 to the position farthest from the spindle motor, that is, the position closest to the buffer support structure 9a.

  Reference numeral 17 denotes a disk support arm that guides the disk D into the apparatus and pushes it out of the apparatus. A holder 18 that supports the end of the disk D is fixed to the tip of the disk support arm. As shown in FIG. 7, the holder 18 has a receiving end 18a at the tip and a holding groove 18b at the side.

  Next, the drive mechanism C that swings the disk support arm 17 will be described. As shown in FIG. 4, the end serving as the swing fulcrum of the disk support arm 17 is integrated with the support plate 19 as shown in FIG. 4, and this support plate 19 can be turned by the pivot pin 20. Therefore, the disk support arm 17 on the base panel 6 swings within the range of the slit 6a as the support plate 19 turns.

  FIG. 8 shows a planar state in which the drive mechanism C of the disk support arm 17 is configured with the base panel 6 removed, and the first link arm 21 that directly drives the disk support arm 17 is a support plate. It is connected to 19 by a pivot pin 17b and is always urged by a tension coil spring 22. On the other hand, slits 23a and 23b are formed in the second link arm 23 as shown in FIG. 9. A rivet pin 24 is inserted through the slits 23a and 23b, and the tip of the slit 23a and 23b is passed through the first link arm 21. The first link arm 21 and the second link arm 23 are fixed to the holes 21a and 21b, and are integrated in a stretchable manner within the range of the slits 23a and 23b. Note that the first link arm 21 and the second link arm 23 are formed with notches 21c and 23c on which a lock mechanism described later acts.

  Reference numeral 25 denotes a lever arm for transmitting a driving force to the second link arm 23, and a through hole 25a serving as a fulcrum is supported by a pivot pin 25d so as to be swingable. A pivot pin 25b is fixed to the working end of the lever arm 25, and the pivot pin 25b is inserted into the through hole 23d of the second link arm 23 and the through hole 26a of the lock lever 26. A torsion coil spring 27 is disposed between the second link arm 23 and the lock lever 26. One end 27a of the torsion coil spring 27 is engaged with the recess 23e of the second link arm 23, and the other end 27b is the lock lever. It is locked to the 26 recesses 26b. As a result, the locking end 26c of the lock lever 26 is urged in a direction to engage with the cutout portion 21c of the first link arm 21 and the cutout portion 23c of the second link arm 23. An angular position detection switch 28 that is turned on / off by contacting a support plate 19 that rotates in conjunction with the disk support arm 17 on the back surface of the base panel 6, and a second link arm at a predetermined position. Is reached, an activation pin 29 for pressing the rear end portion 26d of the lock lever 26 is provided.

  Next, the configuration of the slider mechanism and the transport mechanism E that serve as a power transmission element to the drive mechanism C of the disk support arm 17 will be described. First, the transport mechanism E is roughly configured by a combination of a loading gear unit G1 and a rack gear unit G2. 10 to 11 are diagrams for explaining the configuration and operation mode of the loading gear unit G1. In the drawing, reference numeral 30 denotes a loading motor as a power source. A worm gear 31 is fixed to the output shaft of the loading motor 30 so as to rotate coaxially, and the rotational force of the worm gear 31 is supported by the gear base 35. Sequentially transmitted to the double gears 32, 33 and 34 while being decelerated from the small diameter gear to the large diameter gear.

  In the gear configuration, the double gear 32 includes a release mechanism that releases the meshed state with the worm gear 31. This is because the end portion 36a of the holder 36 that is slidable in the vertical direction while holding the double gear 32 is inserted into the pivot pin 37 and is urged downward by the compression coil spring 38 to be pivotally supported. In this state, as shown in FIG. 10C, the worm gear 31 and the double gear 32 are in a normal meshing state. A dog head 36b is formed at the end of the holder 36 on the side of the loading motor 30 so that a knob 39a of a limit switch 39 fixed to the gear base 35 can be operated.

  On the lower surface of the end portion 36a of the holder 36, a slider member 40 that is pivotally supported coaxially with the pivot pin 37 is provided. A long groove 40a is formed in a portion of the slider member 40 that is pivotally supported by the pivot pin 37 so that the slider member 40 can slide in a direction perpendicular to the end 36a of the holder 36. In addition, the slider member 40 has an inclined surface 40b formed between the front end and the rear end, and when the slider member 40 is advanced, the inclined surface 40b pushes up the end 36a of the holder 36 from the bottom surface, The entire holder 36 is raised.

  A long groove 40d having a locking step 40c that is pivotally supported by the pivot pin 41 is formed at the rear end of the slider member 40, and an action piece 40f having a sealing projection 40e is formed at the rear end. Is formed. On the other hand, a reset piece 40g that is activated in accordance with the movement of the rack gear unit G2 is formed at the front end of the slider member 40.

  The slider member 40 configured integrally as described above has a tension coil spring 42 provided with a tilt angle between the hook piece 40h and the hook piece 35a of the gear base 35, and is provided with an inclination angle. The member 40 is urged so as to rotate counterclockwise while always retracting.

  Since the slider member 40 is configured as described above, the slider member 40 has the pivot pin 37 as a fulcrum in the steady state shown in FIG. In this state, when the slider member 40 is pushed forward from the rear end portion and the locking step portion 40c of the long groove 40d reaches the position of the pivot pin 41, the slider member 40 pivots due to the tension of the tension coil spring 42. The pin 37 is turned around as a fulcrum, and as shown in FIG. 11, the locking step portion 40c and the pivot pin 41 are engaged to be in a locked state, and the posture is maintained.

  Next, in the rack gear unit G2, as shown in FIG. 12, gear trains 43a and 43b are integrally formed with the rack main body 43, and the gear train 43a meshes with the small-diameter gear of the double gear 34 of the loading gear unit G1. Accordingly, by driving the loading motor 30, the rack main body 43 moves forward or backward in the chassis case 2. By moving the rack main body 43 forward or backward in this way, the drive mechanism C connected to the tip of the rack main body 43 is driven to swing the disk support arm 17, and on the surface of the base panel 6 shown in FIG. The attracting arm 50 is swung by the lever arm 44 connected to the rack main body 43.

  On the rack main body 43 configured in this manner, a gear member 45 that moves forward and backward at the front end of the rack main body 43 is arranged in an idle state, and the block 46a is moved forward and backward to press and advance the gear member 45. A pressing pin 46 with 46b is arranged. The gear train 43b and the gear member 45 are engaged with and coupled to a double gear 47 attached to the gear frame 48 so as to freely rotate. In this case, the large diameter gear 47a of the double gear 47 is engaged with the rear end portion of the gear train 43b, and the small diameter gear 47b is engaged with the front end portion of the gear member 45 formed integrally with the block 46b.

  Therefore, when the gear member 45 is pushed by an external force via the pressing pin 46, the double gear 47 rotates at a fixed position, so that the rotational force of the large-diameter gear 47a is transmitted to the gear train 43b, and the rack main body 43 moves. Reference numeral 49 denotes an action piece that presses the reset piece 40g formed at the front end of the slider member 40 of the loading gear unit G1 described above. When the loading gear unit G1 is in the state shown in FIG. When the reset piece 40g of the slider member 40 is pressed, the engagement between the pivot pin 41 and the locking step portion 40c is released, so that the state shown in FIG. 10 is restored.

The following explains the procedure of `` emergency eject '' that manually ejects the stored disk D when the disk eject operation cannot be performed electrically, such as after the host device is shut down. To do.
A slider member 40 (see FIG. 10) of the loading gear unit G1 is disposed behind the through hole 3b of the bezel 3, and a block 46a of the pressing pin 46 (see FIG. 12) is behind the through hole 3c of the bezel 3. Is arranged.
In the steady state shown in FIG. 10, the sealing protrusion 40e of the slider member 40 is located behind the through hole 3c of the bezel 3, and the through hole 3c is sealed. Therefore, emergency eject cannot be performed even if the eject pin is inserted into the through hole 3c from this state.
When emergency ejection is performed, first, an eject pin is inserted from the through hole 3b of the bezel 3, and the slider member 40 is pressed. As a result, the slider member 40 tilts as shown in FIG. 11, and the sealing state of the through hole 3c by the sealing protrusion 40e is released.
At this time, since the inclined surface 40b of the slider member 40 pushes up the end 36a of the holder 36 from the bottom surface, the engagement between the worm gear 31 and the double gear 32 is released, and the double gears 32, 33, and 34 are in a state that allows free rotation. . When the spindle motor 11 is rotating the disk, the dog head 36b of the holder 36 stops the spindle motor 11 in response to driving the knob 39a to turn on the limit switch 39.
Subsequently, the eject pin pulled out from the through hole 3b is inserted into the through hole 3c, and the push pin 46 and the gear member 45 are advanced by pushing the eject pin. As the gear member 45 moves forward, the double gear 47 rotates, and the rack main body 34 moves backward accordingly. As the rack main body 34 moves backward, the frame member 8 is lowered to release the clamp of the disk D, and then the disk support arm 17 is swung to eject the disk D.

  Next, the configuration and operation mode of the lifting mechanism of the frame member 8 will be described. The elevating mechanism includes a rack main body 43, a slide member 51 that moves forward and backward in synchronization with the rack main body 43, and a driven pin 53 that is guided by a cam groove formed in the rack main body 43 and the slide member 51. The The slide member 51 is connected to the rack main body 43 by a link member 55a. As a result, the rack main body 43 and the slide member 51 are moved forward and backward synchronously. FIG. 4 shows a state in which the rack main body 43 is most advanced, and FIG. 5 shows a state in which the rack main body 43 is most retracted.

  The driven pins 53 fixed to the frame member 8 are arranged so that their open ends engage with cam grooves formed in the rack main body 43 and the slide member 51, respectively. Since the engagement relationship between the driven pin 53 and each cam groove is substantially common, the engagement relationship between the cam groove of the rack main body 43 and the driven pin 53 will be described below as a representative example.

  First, in the embodiment shown in FIGS. 13 to 19, an elastic ring 54 having flexibility is attached to the driven pin 53 fixed to the frame member 8. On the other hand, the cam groove formed in the rack main body 43 has a cam groove 43c in which the driven pin 53 is slidably guided and the elastic ring 54 is not in contact with the driven pin 53 in the process of being guided by the cam groove 43c. It is formed so as to have a double cam structure with the cam groove 43d in the loosely fitted state.

  In the high level portion P2 of the cam grooves 43c and 43d, the cam groove 43d is formed to be substantially equal to the diameter of the elastic ring 54 in order to hold the elastic ring 54, and the cam groove 43c is formed in the high level portion P2. In the vicinity of the entrance, the groove formation is completed and the groove is open to the high-order part P2. Therefore, in the range where the cam groove 43c is formed, the driven pin 53 is regulated and supported by the cam groove 43c, and the driven pin 53 is supported via the elastic ring 54 when reaching the high position portion P2.

  Next, the operation mode of the lifting mechanism of the frame member 8 configured as described above will be described with reference to the process diagrams shown in FIGS. FIG. 13 shows an initial state in which the disk D is loaded into the disk device 1 and stopped at a position where the center hole Da of the disk D faces the clamp head. In this state, since the driven pin 53 is in the lower position portion P1 of the cam groove 43c, the frame member 8 is most lowered, and the clamp head 7 is in a state of waiting for ascent. When the rack main body 43 starts to retreat further from this state, the driven pin 53 is gradually guided by the inclined portion P3 of the cam groove 43c as shown in FIG. 14, and the frame member 8 and the clamp head 7 are also raised accordingly. To start.

  When the driven pin 53 guided in the cam groove 43c further moves up the inclined portion P3 as shown in FIG. 15, the chuck claw 7a of the clamp head 7 comes into contact with the opening end portion of the center hole Da of the disk D. When the clamp head 7 ascends from this state as shown in FIG. 16, the chuck claw 7a pushes up the disk D and presses the opening end of the center hole Da against the convex part 2b of the opening 2a of the chassis case 2. Further, when the driven pin 53 is guided and reaches the top of the cam groove 43c as shown in FIG. 17, the clamp head 7 is fitted into the center hole Da of the disk D, and the chuck claw 7a is engaged at the opening end of the disk D. The disk D is stopped and fixed on the turntable 10 and clamped.

  When the rack main body 43 is further retracted from the state of FIG. 17, the frame member 8 is slightly lowered, and the elastic ring 54 is accommodated in the high-order part P2 as shown in FIG. At this point, the clamping operation ends. In this way, the driven pin 53 is detached from the cam groove 43c, the restriction support by the cam groove 43c is released, and the driven pin 53 is elastically supported by the elastic ring 54. Will occur.

  FIG. 19 is a diagram showing a process of unloading the disk D. When the rack main body 43 is moved forward, the driven pin 53 follows the reverse process, and the disk is released by the clamp release pin 56 in the process of reaching the lower position P1. D is detached from the clamp head 7 and can be taken out of the apparatus. In order to facilitate understanding of the operation mode described above, FIG. 20 shows a process of clamping the disk D, and FIG. 21 shows a process of releasing the clamp of the disk D continuously.

  Next, an operation mode of the disk support arm 17 will be described. The drive mechanism C for driving the disk support arm 17 is constructed by assembling the mechanism elements shown in FIG. 9, and its operation is performed as the rack main body 43 moves forward and backward. In other words, in FIG. 22, a driven pin 25c fixed to the end of the lever arm 25 is attached to a guide groove 43f formed in the rack main body 43 so as to be guided by the guide groove 43f. The state shown in the figure shows an initial state in which the operator inserts the disk D from the slot 3a and the front end thereof is accommodated in the receiving end 18a of the holder 18 at the tip of the disk support arm 17. At this time, since the rear end portion 26d of the lock lever 26 is pressed by the starting pin 29, the locking end 26c is interposed in the cutout portions 21c and 23c of the first and second link arms 21 and 23. Not in a state.

FIG. 23 shows a state in which the operator further pushes the disk D into the apparatus. The disk support arm 17 swings backward, and is connected to the base end of the disk support arm 17 by a pivot pin 17c. This shows a state where the first link arm 21 is pulled and the drive start position detection switch 28a inside the angular position detection switch 28 is operated. At this time, since the lever arm 25 is coupled to the stationary rack main body 43, the second link arm 23 coupled thereto is kept in a fixed position. Accordingly, the first link arm 21 is unlocked with respect to the second link arm 23, and the first link arm 21 slides and extends on the second link arm 23 as shown in FIG. It will be in the state.
From this point, the loading motor 30 is driven with weak power in response to the drive start position detection switch 28a being turned on, and the transport mechanism E starts driving.

FIG. 24 shows a state in which the operator further pushes the disk D into the apparatus. The disk support arm 17 swings backward, and is connected to the base end of the disk support arm 17 by a pivot pin 17c. The first link arm 21 is pulled and the intermediate position detection switch 28b inside the angular position detection switch 28 is activated.
At this time, since the transport mechanism E has started driving in response to the driving start position detection switch 28a being turned on from the state of FIG. 23, the rack main body 43 is in the retracted state. In this state, as the rack main body 43 retreats, the lever arm 25 is swung by the guide groove 43f, and the second link arm 23 slides forward so as to follow the first link arm 21. The locking end 26c of the lock lever 26 released from the pressing by the activation pin 29 is interposed in the notches 21c and 23c of the first and second link arms 21 and 23, and the first and second links The integration of the arms 21 and 23 is locked. That is, when the disk D is loaded, the first and second link arms 21 and 23 are temporarily displaced in the extending direction (from the state of FIG. 22 to the state of FIG. 23) and then displaced in the contracting direction (FIG. 23). In this state, the first and second link arms 21 and 23 are locked.

  FIG. 25 shows a state where the rack main body 43 is further retracted, the disk support arm 17 is swung back, the disk D is loaded, and the center hole Da of the disk D is aligned with the clamp head 7. Until this time, the disk D is chucked and held by the holder 18 and the attracting arm 50, and the disk support arm 17 and the attracting arm 50 swing in synchronization.

In the process of FIGS. 25 to 26, the driven pin 25c of the lever arm 25 only slides in the longitudinal groove portion of the guide groove 43f of the rack main body 43, so that the disk support arm 17 is kept in a fixed position. On the other hand, when the driven pin 53 is guided by the cam groove formed in the rack main body 43 and the slide member 51, the lifting mechanism of the frame member 8 operates and the clamp head 7 is moved to the center of the disk D at the time shown in FIG. Enter hole Da. Then, the taper portion formed on the top of the clamp head 7 comes into contact with the center hole Da of the disk D so that centering is performed.
Thereafter, when the clamp head 7 further enters the center hole Da of the disk D and is clamped, the disk D is raised by the clamp head 7. During the ascending operation, the chucking by the disc support arm 17 and the attracting arm 50 is an obstacle. If the clamp head 7 is raised while chucking, the disk D is deformed in an umbrella shape, and a load is applied to the raising operation of the clamp head 7. Therefore, after performing the centering by the taper portion formed on the top of the clamp head 7, the disk support arm 17 and the attracting arm 50 are slightly separated from the disk D, the chucking is released, and the clamp head 7 is further moved. The chuck claw 7a is engaged with the center hole Da of the disk D by raising.

  FIG. 27 shows a state in which the rack main body 43 is slightly retracted after the clamp head 7 clamps the center hole Da of the disk D from the time point of FIG. 26, whereby the vertical direction of the guide groove 43 f of the rack main body 43 is shown. The lever arm 25 slightly swings at the end of the groove, and the disk support arm 17 also swings slightly as shown in the figure, so that the chucking of the disk D by the holder 18 is released. When reaching this point, the attracting arm 50 also slightly swings in synchronism, and the chucking of the disk D is released. Further, in the elevating mechanism of the frame member 8, the driven pin 53 is slightly lowered in the cam groove 43c, and the disk D can be driven to rotate. That is, the clamping operation ends.

  The above is the operation mode of the drive mechanism C when the disk D is loaded, but when the disk D is unloaded, the mechanism elements of each part perform the reverse operation following the reverse path. That is, the transport mechanism E is driven in reverse, the rack main body 43 is advanced, and the disk support arm 17 swings forward from the state shown in FIG. 27 to the state shown in FIG. The end 26d abuts against the activation pin 29. Then, when the rack main body 43 further advances, the rear end portion 26d is pressed by the activation pin 29, whereby the locking end 26c of the lock lever 26 is connected to the first link arm 21 as shown in FIG. The lock state in which the first link arm 21 and the second link arm 23 are integrated is released, and at the same time, the tension coil spring 22 is released by swinging away from the notches 21c and 23c of the second link arm 23. The disk support arm 17 swings to the position shown in FIG. 22 by the urging force, and the disk D is popped out of the slot 3a in the final moment of the final unloading process to complete the unloading.

  In this way, at the start of the disk carry-in operation, the first and second link arms 21 and 23 are unlocked, and as the disk D is inserted, the first and second link arms 21 and 23 are released. Is displaced in the extending direction and then displaced in the contracting direction, reaches the state of FIG. 24 and is locked by the lock lever 26. On the other hand, at the start of the disk D unloading operation, the first and second link arms 21 and 23 are in a locked state, and therefore the first and second link arms 21 and 23 extend as in loading. / Without displacement in the shrinking direction, the state shown in FIG. 28 is reached and the lock by the lock lever 26 is released. When the disk D is unloaded, almost all unloading processes are driven and controlled by the unloading mechanism E, so that the unloading operation is always constant, and the disk D is exposed from the slot 3a of the bezel 3 and stops at the end of unloading. The state is always constant.

  Next, the configuration and operation mode of the attracting arm 50 driven by the rack main body 43 will be described below. FIG. 29 shows a configuration for driving the attracting arm 50. A guide slit 6b is formed in the base panel 6 at a position overlapping the guide groove 43e formed in the rack main body 43, and the guide groove 43e and the guide slit 6b are formed. The driven pin 57 fixed to the tip of the lever arm 44 is inserted, and the guide slit 6b at a fixed position with respect to the guide groove 43e moving forward and backward interacts to control the operation of the driven pin 57. ing.

  32, a lever arm 44 is pivotally supported by a pivot pin 59 at a base end portion rotatably supported by a pivot pin 58. As shown in FIG. A holding groove for the disk D is formed at the tip of the attracting arm 50, and a roller 60 is disposed inside the holding groove. Since the attracting arm 50 is configured in this way, it swings within the chassis case 2 in accordance with the operation of the lever arm 44 so that the disk D can be carried into the apparatus.

  On the other hand, the lever arm 44 for transmitting the driving force to the attracting arm 50 is formed with a through hole 44a for pivotally supporting the pivot pin 59 of the attracting arm 50 as shown in FIG. Slide groove 44A formed with a locking claw 44b and a locking projection 44c bulging to the lower surface, a through hole 44d to which the driven pin 57 is fixed, and a guide groove with a slit 44e formed on the side And a support piece 44B provided with 44f. A through hole 44g is formed in the bottom plate portion of the guide groove 44f of the support piece 44B, and a notch 44h is formed so as to face the guide groove 44f.

  When the locking claw 44b of the slide piece 44A formed in this way is inserted from the notch 44h of the support piece 44B and the slide piece 44A is slightly slid forward, the locking claw 44b is locked by the slit 44e, The locking projection 44c is engaged with and integrated with the through hole 44g of the support piece 44B. As a result, the slide piece 44A and the support piece 44B can be expanded and contracted with each other, but the reference length of the lever arm is locked in a state in which the locking projection 44c and the through hole 44g are engaged.

FIGS. 32 to 36 show an operation mode of the pulling arm 50, and will be described in correspondence with an operation mode of the driven pin 53 guided by the cam groove 43c of the rack main body 43. FIG. FIG. 32 shows a state before the disk D is inserted into the disk device 1 by the operator.
The disk support arm 17 swings backward by being pushed back on the front end side in the loading direction of the disk D, and the drive start position detection switch 28a inside the angular position detection switch 28 is moved by the support plate 19 interlocked with the disk support arm 17. The loading motor 30 is operated with weak electric power, and the drive mechanism C is in a state immediately before the operation starts. Therefore, the rack main body 43 is located at the foremost end as shown in the figure, and the driven pin 57 of the lever arm 44 is located at the rear end position of the guide groove 43e. Thereafter, when the drive start position detection switch 28a inside the angular position detection switch 28 is operated, the rack main body 43 starts to move backward.

  In this state, when the operation of pushing the disk D further into the disk device 1 is continued after the drive mechanism C starts operating, the disk support arm 17 further swings backward, and the support plate 19 interlocked with the disk support arm 17 The rotation angle also changes, the intermediate position detection switch 28b inside the angular position detection switch 28 is activated, and the loading motor 30 is driven with strong electric power. Then, the rack main body 43 further moves backward as shown in FIG. At this time, since the driven pin 57 is sandwiched between the inclined surface of the rear end of the guide groove 43e and the side wall of the guide slit 6b, the driven pin 57 is also retracted as the rack main body 43 is retracted, and the lever arm 44 is By being pulled, the attracting arm 50 swings and the disk D is chucked by the disk support arm 17, and the loading of the disk D is started. At this time, the driven pin 53 moves in the horizontal portion of the lower portion P1 of the cam groove 43c, and the height does not change.

  FIG. 34 shows a state in which the rack main body 43 is further retracted and the driven pin 57 reaches the top of the guide slit 6b. The loading of the disk D is continued by the swinging of the attracting arm 50, and the center hole of the disk D is shown. In this state, Da has reached a position that coincides with the clamp head 7, and at this time, the driven pin 53 starts to rise up the slope of the inclined portion P3 of the cam groove 43c.

  FIG. 35 shows a state where the rack main body 43 is slightly retracted from the position of FIG. 34, and the driven pin 57 is pushed into the lateral groove at the top of the guide slit 6b by the guide groove 43e. The attracting arm 50 is slightly retracted from the position shown in FIG. 34, and the chucking of the disk D is released. At this time, the driven pin 53 reaches the top of the inclined portion P3 of the cam groove 43c, and the clamp head 7 is fixed to the center hole Da of the disk D.

  FIG. 36 shows a state in which the rack main body 43 is retracted to the final position. In the process from FIG. 35 to FIG. 36, the driven pin 57 is further pushed into the lateral groove at the top of the guide slit 6b by the long groove at the front end of the guide groove 43e. As a result, the attracting arm 50 is completely separated from the disk D. At this time, the driven pin 53 descends from the top of the cam groove 43c to the high-order part P2, and the disk D can be driven to rotate.

FIG. 37 is a plan view for explaining an operation mode of the lever arm 44 when the user pulls out the disk D during the loading operation.
In the process of loading the disk D, that is, in a state in which the rack main body 43 moves backward and the disk D is loaded to the position indicated by the phantom line by the attracting arm 50, the disk D is pulled out in the unloading direction. When reaching the solid line position in the figure, the attracting arm 50 swings accordingly. At this time, the support piece 44B of the lever arm 44 is moving in the direction of the arrow X2 because the pulling by the rack main body 43 is continued, while the slide piece 44A is oscillating of the attracting arm 50. Along with this, it moves in the direction of arrow X1.

  In the above situation, the slide piece 44A and the support piece 44B move in the relative direction, and a predetermined load or more is applied to the engagement state between the locking projection 44c and the through hole 44g shown in FIG. Therefore, as shown in FIG. 38B, the engagement state locked to the reference length is released, and the slide piece 44A slides in the direction of the arrow X1. As a result, the negative force generated from the attracting arm 50 to the lever arm 44 by the pulling operation of the disk D is absorbed by the slide of the slide piece 44A, and the attracting arm 50, the lever arm 44 and the drive for driving the attracting arm 50 Damage to the mechanism can be prevented.

  In this way, when the damage accompanying the pulling operation of the disk D is prevented, the drive mechanism can be reversed at that time by an error detection operation described later, and the conveyance of the disk D can be reversed in the unloading direction. In this case, the slide piece 44A of the lever arm 44 is in a state extending from the steady state position as shown in FIG. 37, but the support piece 44B is attached to the slide piece 44A in the process of reaching the initial state of FIG. When pushed, the lever arm 44 returns to the locked state at the reference length in the steady state.

  In the above configuration of the present invention, it is possible to set the disengagement timing corresponding to the magnitude of the load by adjusting the engagement state of the locking projection 44c of the lever arm 44 and the through hole 44g. It becomes. In the above embodiment, the slide piece 44A and the support piece 44B are formed in a thin plate shape. However, the reference length of the lever arm 44 in a steady state can be locked, and can be expanded and contracted. If so, it is not limited to this.

[Clamp safety mechanism]
39, FIG. 40, FIG. 41, FIG. 42, and FIG. 43 are views showing only a main part for explaining the safety mechanism of the clamping operation in the disk device 1. FIG.
The stopper 72 is provided on the base panel 6 so as to be rotatable about a shaft 72a.
The leaf spring 83 is hooked in a direction that always urges the tongue piece 72b of the stopper 72 in the disc ejection direction.
In the vicinity of the opening 73, a support 84 is formed by cutting and raising the base panel 6.

39, 40 and 41 are schematic diagrams showing the operation when the disk D is normally clamped.
In FIG. 39, at the timing when the end of the rack main body 43 approaches the stopper 72, the peripheral edge of the disk D pushes the tongue piece 72b of the stopper 72. Then, the stopper 72 rotates clockwise about the shaft 72a. At this time, the tip 72c of the stopper 72 is not yet in contact with the rack main body 43.
At this time, the leaf spring 83 pressing the stopper 72 is not in contact with the column 84. That is, the stopper 72 is in a state where a weak biasing force is applied by the entire length of the leaf spring 83. Therefore, the stopper 72 is easily rotated by the pressing force applied from the peripheral edge of the disk D when the disk D is pulled by the attracting arm 50.

In FIG. 40, the front end 72c of the stopper 72 contacts the first inclined portion 43h of the rack main body 43. In such a state, the stopper 72 further rotates in the clockwise direction as the rack main body 43 moves backward, and as a result, the restriction on the rack main body 43 is released.
Thereafter, as the rack main body 43 moves, the tip 72c of the stopper 72 comes into sliding contact with the first long side portion 43i of the rack main body 43. Then, the leaf spring 83 that presses the stopper 72 is in contact with the column 84. Then, the stopper 72 is changed from a state where a weak urging force is applied by the leaf spring 83 to a state where a range in which the urging force of the leaf spring 83 is applied is narrowed by the support 84 so that a large urging force is applied. Then, since the tongue piece 72b of the stopper 72 becomes difficult to move against the pressing force applied from the periphery of the disk D when the disk D is pulled by the attracting arm 50, the tongue piece 72b of the stopper 72 is The movement of the disk D is restricted against the pressing force exerted from the part.
The position of the tongue 72b of the stopper 72 at this time is a position where the center hole Da of the disk D coincides with the clamp head 7. That is, the tongue piece 72b of the stopper 72 at this time plays a role of a guide for preventing a phenomenon that the position of the disk D is shifted during the clamping operation and performing a reliable clamping operation.
The length of the first long side portion 43i of the rack main body 43 is the mid course of the clamping operation, and the position is a restriction position for using the tongue piece 72b of the stopper 72 as a guide member for the clamping operation.

In FIG. 41, immediately before the clamping operation is completed, the tip 72c of the stopper 72 is slidably contacted with the second long side portion 43k through the second inclined portion 43j beyond the first long side portion 43i of the rack main body 43. 72 further rotates clockwise. Then, the tongue piece 72b of the stopper 72 is slightly separated from the peripheral edge of the disk D, and becomes a position that does not disturb the rotation of the disk D.
That is, when the clamping operation is completed, the role of the stopper 72 as a guide for the tongue piece 72b ends, so it is necessary to lift the tongue piece 72b of the stopper 72 away from the disk D, and this operation is performed on the second long side of the rack main body 43. This is realized by the restriction position by the portion 43k.

FIG. 42 and FIG. 43 are schematic diagrams showing the operation when the user tries to pull out the disc D halfway in the process of loading the disc D.
In FIG. 42, since the user tries to pull out the disk D at the timing when the end of the rack main body 43 approaches the stopper 72, the peripheral edge of the disk D does not press the tongue piece 72b of the stopper 72.
In FIG. 43, the end of the rack main body 43 contacts the tip 72 c of the stopper 72. The stopper 72 is positioned so as to limit the movement of the rack main body 43. When the movement of the rack main body 43 proceeds and comes into contact with the stopper 72, the rack main body 43 cannot move further.
The rack main body 43 is provided with a cam groove 43c and a cam groove 43d for controlling a clamping operation, and the stopper 72 restricts the movement of the rack main body 43, so that the driven pin 53 is an inclined portion of the cam groove 43c and the cam groove 43d. Cannot move to P3. As a result, the clamping operation by the rack main body 43 is prohibited.

FIG. 44 is an enlarged view of the upper left part of FIG. 4 and shows only the main part.
One end of the rack main body 43 moves between the position U1 and the position U2.
The position U1 is a state where the rack main body 43 is moving in the direction (front side) where the bezel 3 of the disk device 1 is located, and the disk D is not clamped. At this time, the detection piece 80a of the ejection end detection switch 80 is away from one end of the rack main body 43, and the ejection end detection switch 80 is in the OFF state. Similarly, the detection piece 81a of the loading end detection switch 81, which is a clamp completion detection means, is separated from one end of the rack main body 43, and the loading end detection switch 81 is also in the OFF state.
The position U2 is a state in which the rack main body 43 is moving in the direction (rear side) opposite to the direction in which the bezel 3 of the disk device 1 is present, and the disk D is clamped. At this time, the detection piece 80a of the ejection end detection switch 80 is in contact with the side surface of the rack main body 43, and the ejection end detection switch 80 is in the ON state. Similarly, the detection piece 81a of the loading end detection switch 81 is pushed by one end of the rack main body 43, and the loading end detection switch 81 is also in the ON state.
That is, when the loading end detection switch 81 is turned on, the loading motor 30 is turned off, and the loading operation for drawing and clamping the disk D is completed.
Further, when the ejection end detection switch 80 is turned off, the loading motor 30 is turned off, and the ejection operation for releasing the disk D and ejecting it is finished.

FIG. 45 is a plan view of the main part extracted from the base panel 6 of the disk apparatus 1 of FIG. Unlike FIG. 2, the entry of some parts is omitted.
An outermost peripheral position detection switch 75 is provided at a location near the guide shaft 15 in the carrier block 13, and when the carrier block 13 reaches the outermost peripheral position, it contacts the carrier block 13 and is turned off.

FIG. 46 is a plan view showing the relationship between the disk support arm 17 and the angular position detection switch 28 in the disk device 1.
FIG. 47 is a schematic diagram also serving as a timing chart showing the state and operation of the disk device 1.
48 to 51 are enlarged plan views showing states of the support plate 19 and the angular position detection switch 28 in FIG.
The disk support arm 17 is provided with a support plate 19 that rotates in conjunction with the disk support arm 17.
The peripheral portion of the support plate 19 constitutes a cam including a portion projecting in the radial direction at both ends and a portion recessed in the radial direction therebetween.
In the vicinity of the support plate 19, an angular position detection switch 28 operated by the support plate 19 is provided.
The support plate 19 is provided so as to drive the operation piece 28c of the angular position detection switch 28, and when the support plate 19 rotates, the operation piece 28c is changed according to the angular position of the support plate 19 in accordance with the angular position detection switch 28. With respect to the main body, the angular position changes to the left / center / right.

The angular position detection switch 28 includes two switches.
The angular position detection switch 28 has a configuration in which the operation piece 28c is stabilized at the center position by a built-in spring, and one switch is exclusive when the operation piece 28c falls to one side, and the other switch is exclusive when the operation piece 28c falls to the other. In the center position, the two switches are both kept on.

FIG. 52 is a block diagram showing mainly the control means of the slot-in type disk apparatus 1. FIG. The microcomputer 70 which is a control means is a well-known one having a ROM, a RAM, a CPU, a bus and the like (not shown) inside.
The bus of the microcomputer 70 includes an eject switch 4, a sled motor 16, an angular position detection switch 28, a motor driver 71, an outermost peripheral position detection switch 75, a data processing unit 76, an ejection end detection switch 80, A loading end detection switch 81 is connected.
Various other components are connected to the microcomputer 70, but the connection relationship and / or illustration of components not directly related to the present invention is omitted.

The eject switch 4 is a well-known push-button switch disposed near the slot 3a of the bezel 3.
Further, the bezel 3 is provided with through holes 3b and 3c. By inserting an eject pin (not shown) through the through holes 3b and 3c, the rack main body 43 is driven by the emergency eject mechanism described above, and the disk D is manually operated. It is configured so that it can be discharged.
The eject pin has a well-known wire shape used in an emergency eject mechanism in a conventional optical disc apparatus.

  The sled motor 16 drives the lead screw 79 to reciprocate the carrier block 13 on which the optical pickup 12 is placed in the diameter direction of the disk D, and at the time of transition to an ejection preparation state described later. First, the carrier block 13 is moved to a position farthest from the drive shaft of the spindle motor 11.

The outermost peripheral position detection switch 75 is provided inside the frame member 8, and is pushed by the carrier block 13 to be turned off when the carrier block 13 moves in the outermost peripheral direction of the disk and reaches the mechanical stop position.
Hereinafter, this mechanical stop position is referred to as a disk outermost peripheral position.

The motor driver 71 is for supplying electric power to the loading motor 30, and is constituted by a circuit centered on a power transistor, for example.
The microcomputer 70 performs two-stage power control on the motor driver 71. This power control will be described later.

  The data processing unit 76 supplies information read from the optical pickup 12 via the signal processing circuit 77 to the host device through the ATAPI interface, and issues an operation command to the microcomputer 70 according to various commands coming from the host device.

  As described above, the ejection end detection switch 80 is released at the position where the rack main body 43 driven by the loading motor 30 has finished the ejection operation. That is, it is a switch that detects that the rack main body 43 has reached the end point of the ejection operation.

  As described above, the loading end detection switch 81 is pushed at the position where the rack main body 43 driven by the loading motor 30 has finished the clamping operation. That is, the switch detects that the rack main body 43 has reached the end of the loading operation.

  As described above, the angular position detection switch 28 includes two switches, that is, a drive start position detection switch 28a and an intermediate position detection switch 28b.

  The eject switch 4, the ejection end detection switch 80, the loading end detection switch 81, the drive start position detection switch 28a and the intermediate position detection switch 28b built in the angular position detection switch 28, and the outermost periphery position detection switch 75 are These are pulled up by the power supply voltage through the resistors R1, R2, R3, R4, R5, and R6, respectively, and become 0V in the ON state.

[Loading control]
Now, functions related to the operation of loading control will be described.
FIG. 53 shows a drive start position detection switch 28a and an intermediate position detection switch 28b built in the angular position detection switch 28 and an ejection end detection switch 80 when the disk D is inserted into the disk device 1 to perform a loading operation. FIG. 6 is a diagram showing a logical state of the loading end detection switch 81.

Time t0 is a state before the disk D is inserted into the slot 3a, and time t1 is a state where the periphery of the disk D is in contact with the disk support arm 17 after the disk D is inserted into the slot 3a.
From the time point t0 to the time point t1, the “discharge position” in FIG. 47 and the state in FIG. 48 correspond.
This is a position where the user has pushed the disk D into the disk device 1 and touched the holder 18 with the disk D. This is also the position when the disk D is ejected from the disk device 1 and the disk support arm 17 is shaken to complete the ejection operation.
The operation piece 28c is in contact with the first protruding portion of the support plate 19, and swings downward in FIG.
At this time, the drive start position detection switch 28a, the ejection end detection switch 80, and the loading end detection switch 81 are off, and the intermediate position detection switch 28b is on.

From time t1 to immediately before time t2, when the user further pushes the disk D into the disk device 1 from the state of FIG. 48, the disk support arm 17 is rotated. The sliding contact is continued in contact with the first protruding portion.
Until this time, the logic of each switch does not change from the state at time t1.

Time t2 is a state in which the disk D pushes the disk support arm 17 and the drive start position detection switch 28a is turned on, which corresponds to the “drive start position” in FIG. 47 and FIG.
48, the user further pushes the disk D into the disk device 1, and the disk D pushes the disk support arm 17 through the holder 18.
As a result, the support plate 19 rotates, and the operation piece 28c reaches the recessed portion of the support plate 19.
Since the recessed portion of the support plate 19 is configured not to contact the operation piece 28c slightly, the support plate 19 and the operation piece 28c are not in contact with each other.
In FIG. 49, the operation piece 28c maintains the position in the center direction.
At this time, the drive start position detection switch 28a is switched from OFF to ON.
Note that the ejection end detection switch 80 and the loading end detection switch 81 are off, and the intermediate position detection switch 28b remains on.

The microcomputer 70 gives a pulse-shaped drive control signal to the motor driver 71 in response to the drive start position detection switch 28a being turned on. That is, PWM control. In this embodiment, PWM control is performed with a pulse having a duty ratio of 10%. As a result, the motor driver 71 supplies power to the loading motor 30 in a state where the power supply power is limited to about 10%.
Then, the loading motor 30 starts rotating with a weak electric power, drives the rack main body 43, and the attracting arm 50 is driven in response. Soon, the roller 60 at the tip of the attracting arm 50 contacts the outer edge of the disk D. However, due to the PWM control by the microcomputer 70, the electric power supplied to the loading motor 30 is weak, and a driving force for driving the disk D in the loading direction or in the ejection direction which is the reverse of it cannot be generated.
That is, in this state, the pulling-in operation is performed with a force that pushes the disk D into the disk device 1 by the user's hand. The disk D is swallowed in the loading direction of the disk device 1 by the power of the user's hand while the roller 60 at the tip of the attracting arm 50 contacts the outer edge of the disk D.
At this point, the loading motor 30 should not be driven at full power. This is because, when the direction of the force generated from the point where the roller 60 at the tip of the attracting arm 50 is in contact with the peripheral edge of the disk D is not directed to the loading direction of the disk device 1, the disk D is discharged. This is because force is applied in the direction.

  Soon after, when the rack main body 43 moves, the ejection end detection switch 80 is also turned on at time t3. However, it is not directly related to the loading operation.

At a time point t4, the disk D pushes the disk support arm 17 and the intermediate position detection switch 28b is turned off, which corresponds to the “intermediate position” in FIG. 47 and FIG.
The support plate 19 further rotates from the state of FIG. 49, and the operation piece 28c comes into contact with the second projecting portion from the recessed portion of the support plate 19.
The operation piece 28c is in contact with the second projecting portion of the support plate 19 and swings slightly upward from the central direction in FIG.
At this time, the majority of the disk D reaches the inside of the disk device 1.

  The microcomputer 70 provides a DC drive control signal to the motor driver 71 in response to the intermediate position detection switch 28b being turned off. As a result, the motor driver 71 supplies power to the loading motor 30 in a state where the power supply power is not limited. Then, the loading motor 30 starts rotating with strong electric power, further drives the rack main body 43, and the attracting arm 50 is driven in response to this. At this point, since the roller 60 at the tip of the attracting arm 50 is already in contact with the outer edge of the disk D, the disk D is driven in the loading direction.

  Immediately before reaching the time point t5, the peripheral edge of the disk D pushes the tongue piece 72b of the stopper 72. As a result, the shift of the rack main body 43 to the clamping operation is mechanically permitted as described above.

At the time point t5, the center of the disk D coincides with the clamp head 7 provided in the spindle motor 11, and the clamping operation starts, and the support plate 19 is further rotated from the state shown in FIG.
In this state, there is no logical change in the angular position detection switch 28.

When the clamping operation proceeds from time t5, the rack main body 43 turns on the loading end detection switch 81 at time t6. 47 corresponds to the “load position” in FIG.
In response to the loading end detection switch 81 being turned on, the microcomputer 70 controls the motor driver 71 to prohibit power supply. Then, the loading motor 30 stops rotating and the loading operation ends. That is, the clamping operation is completed.

  FIG. 54 is a flowchart of the disk loading operation performed by the microcomputer 70. A program for this operation is stored in a ROM (not shown) in the microcomputer 70.

  In step S100, the disk loading operation program starts. Then, in step S101, it is determined whether or not the drive start position detection switch 28a is turned on. The polling is continued until the drive start position detection switch 28a is turned on.

  When the disk D is inserted into the disk device 1 by the user's hand, the periphery of the disk D touches the holder 18 at the tip of the disk support arm 17, and the disk D is further pushed in, the drive start position detection switch 28a is turned on. When the drive start position detection switch 28a is turned on, a software timer for measuring 5 seconds is started in step S102.

  Next, in step S103, the loading motor 30 is driven by 10% PWM drive. The loading motor 30 is rotationally driven by this weak electric power, the rack main body 43 is driven, and the attracting arm 50 starts driving. Soon, the attracting arm 50 follows the insertion speed of the disk D by the user's hand, and the roller 60 at the leading end of the attracting arm 50 contacts the rear end of the disk D. However, since the power applied to the loading motor 30 is weak, the attracting arm 50 does not have a driving force enough to push the disk D.

  Next, in step S104, the value of the 5-second timer is checked to see whether or not 5 seconds have elapsed since the timer was started, that is, when the disk D reached the drive start position. If 5 seconds has not elapsed in step S104, it is next determined in step S105 whether or not the intermediate position detection switch 28b has been turned off.

  When the disk D is further pushed in from the time of step S101 by the insertion operation of the disk D by the user's hand, the disk support arm 17 eventually reaches an angular position at which the intermediate position detection switch 28b is turned off. Until the intermediate position detection switch 28b is turned off in step S105, the process returns to step S104 and the 5-second timer is monitored. If 5 seconds have elapsed, there may be factors such as whether the manual loading operation by the operator's hand is too slow, or whether the operator has pulled out the disk halfway or interrupted the manual loading operation. In step S106, an error process for ejecting the disk D is performed, and the process ends.

  When it is detected in step S105 that the intermediate position detection switch 28b is turned off, a software timer that measures 1.5 seconds is started in step S107. In step S102, a margin of 5 seconds is given because it is a manual loading operation. However, in step S107, a margin of only 1.5 seconds is allowed because of an automatic loading operation by the loading mechanism.

  Next, at step S108, the loading motor 30 is driven at full power with 100% power. The loading motor 30 is rotationally driven by this strong electric power, the rack main body 43 is driven, and the attracting arm 50 continues to be driven with a strong driving force. Thereby, the attracting arm 50 pushes the rear end of the disk D with a strong force.

  Next, in step S109, the value of the 1.5 second timer is checked to see whether or not 1.5 seconds have elapsed since the timer was started, that is, when the disk D reached the intermediate position. If 1.5 seconds has not elapsed in step S109, it is next checked in step S110 whether the loading end detection switch 81 is turned on.

  When the disk D is pushed in by the attracting arm 50 and reaches a clampable position, the peripheral edge of the disk D eventually pushes the tongue 72b of the stopper 72, and the transition of the rack main body 43 to the clamping operation is mechanically permitted. Then, as the loading operation proceeds, the disc D clamping operation is performed without delay, and the leading end of the rack main body 43 reaches a position where the loading end detection switch 81 is turned on. Until the loading end detection switch 81 is turned on in step S110, the process returns to step S109 and the 1.5 second timer is monitored. If the rack main body 43 advances without the stopper 72 being released due to the operator pulling out the disk halfway or the like, and the rack main body 43 hits the stopper 72, the state of FIG. . Accordingly, in step S111, the loading motor 30 is rotated in the reverse direction, error processing for ejecting the disk D is performed, and the process ends.

  If it is detected in step S110 that the loading end detection switch 81 is turned on for 1.5 seconds, the loading motor 30 is controlled to be turned off in step S112, and the loading operation is ended in step S113.

[Eject control]
The functions related to the eject control operation will be described below.
A ROM (not shown) in the microcomputer 70 stores a program that provides an eject control processing function and a “necessary ejection preparation” judgment function for judging whether or not ejection preparation is necessary.
Further, various instructions coming from the host device through the ATAPI interface are input to the microcomputer 70 via the data processing unit 76.

In the disk device 1 according to the present embodiment, in order to eject the disk D clamped to the clamp head 7, the clamp must be released from the state where the center hole Da of the disk D is clamped to the clamp head 7. .
In order to release the clamp, the carrier block 13 must be moved to the disk outermost peripheral position in advance prior to the clamp release operation so as not to disturb the vertical movement of the spindle motor 11.
When performing the ejection operation of the disk D, the microcomputer 70 first detects whether or not the carrier block 13 is positioned at the disk outermost periphery position by the outermost periphery position detection switch 75.
If it is found from the detection result of the outermost peripheral position detection switch 75 that the carrier block 13 is not located at the outermost peripheral position of the disk, the sled motor 16 is controlled to move the carrier block 13 to the outermost peripheral position of the disk.
While monitoring the detection result of the outermost periphery position detection switch 75 while moving the carrier block 13 to the outermost periphery position of the disk by controlling the thread motor 16, the carrier block 13 is positioned at the outermost periphery position of the disk. Is determined by the detection result of the outermost periphery position detection switch 75, the motor driver 71 is controlled to drive the loading motor 30 in response to this.

The disk device 1 is made on the assumption that it is incorporated into a well-known personal computer which is a host device.
The personal computer is turned on / off according to the intention of the user, and therefore the disk device 1 cannot grasp the cause of the interruption of the power supply of the personal computer.
As is clear from the above, the disk device 1 is not located at the outermost circumferential position of the disk when the power supply is cut off. The eject mechanism cannot be activated.
Therefore, in the present invention, when the possibility that the disk device 1 is immediately requested to access from the host device becomes low, or when the host device explicitly requests the transition to the standby state, the carrier block 13 is set. A process of moving to the outermost peripheral position of the disk is performed.
That is, in the state where the center hole Da of the disk D is clamped by the clamp head 7, the disk D is not discharged, but the carrier block 13 is at the outermost peripheral position of the disk, and the disk D is immediately discharged. To be ready.
Hereinafter, this state is referred to as an ejection preparation state.
Similarly, the state in which the center hole Da of the disk D is not clamped to the clamp head 7 is referred to as a disk ejected state. The center hole Da of the disk D is clamped to the clamp head 7 and the carrier block 13 is positioned at the outermost periphery of the disk. A state where the disc D is not immediately positioned and cannot be immediately ejected is referred to as a disc playback state.
In other words, in order to eject the disk D from the disk playback state, the disk device 1 according to the present invention goes through the ejection preparation state and then shifts to the disk ejection state.

  FIG. 55 is a flowchart showing the control operation of the microcomputer 70 according to the present invention, and FIG. 56 is a flowchart showing the operation of checking the state of the disk device 1 which operates in parallel with the control operation of FIG.

Hereinafter, the control operation of FIG. 55 will be described.
In step S201, the control operation started in step S200 is performed. In step S201, first, the disk D is guided into the disk device 1 by the loading mechanism, and it is verified whether the center hole Da of the disk D is clamped by the clamp head 7. The
In response to the loading end detection switch 81 being pushed by the rack main body 43 when the loading operation is completed, the microcomputer 70 knows whether or not the disk D is loaded. If disk D is not loaded, continue checking until the disk is loaded.

  If the disk D is loaded in step S201, it is verified in step S202 whether or not the “eject required preparation” flag is set. The process of setting the “eject required preparation” flag will be described later with reference to FIG. If the “preparation for required ejection” flag is not set, the confirmation is continued until the “preparation for required ejection” flag is set.

If the “eject required preparation” flag is set in step S202, whether or not the carrier block 13 is at the outermost circumferential position of the disk is verified through the outermost circumferential position detection switch 75 in step S203. If it is found that the carrier block 13 is not located at the outermost circumferential position of the disk, the thread motor 16 is driven and the lead screw 79 is moved to seek the carrier block 13 to the outermost circumferential position of the disk at step S204. Drive to rotate.
The rotation drive control of the lead screw 79 is continued until the outermost position detection switch 75 detects that the carrier block 13 reaches the outermost position of the disk.

If the carrier block 13 is located at the outermost peripheral position of the disk in step S203, it is verified in step S205 whether or not the “eject command” flag is set.
If the “eject command” flag is set, the eject operation is performed in step S206. If not, the process returns to step S202, and the check is continued until the “eject required” flag is set.

  In the flowchart of FIG. 55, when the determination results in step S202 and step S205 are false (No), the process may return to the beginning of step S201 in addition to returning to the beginning of step S202.

Note that the “preparation for ejection required” flag and the “ejection command” flag are cleared when the ejection operation of the disk D is completed.
Even if the disk D is installed and the “Eject Required” flag is raised, the carrier block 13 moves to the inner circumference of the disk when a playback command is received from the host device to the disk device 1. Then, the “preparation for ejection required” flag is lowered.

The “eject required preparation” determination operation of FIG. 56 will be described below.
When the determination routine is started in step S207, it is verified in step S208 whether the eject button has been pressed, that is, whether the eject switch 4 has been turned on.
When the eject switch 4 is turned on, the eject command flag is raised in step S210.

If the eject switch 4 is not turned on in step S208, it is verified in step S209 whether or not an eject command has been received from the host device.
If an eject command has been received, the eject command flag is raised in step S210.

If no eject command has been received from the host device in step S209, it is verified in step S211 whether or not a timeout has occurred.
The microcomputer 70 operates a software timer (not shown) constituted by a program. A command coming from a host device is accepted through the data processing unit 76, and the software timer is cleared to zero each time a command comes.
The software timer measures a predetermined time, for example, 8 minutes, and after 8 minutes, shifts to a timeout state.

If it is determined in step S211 that 8 minutes have not elapsed since the last instruction from the host device, a sleep command has been received from the host device in step S213, that is, a transition to the standby state is commanded. It is verified whether or not.
If it is determined in step S211 that 8 minutes have elapsed since the last instruction from the host device, the process proceeds to step S212 described later.

If it is determined in step S213 that no sleep command has been received from the host device, it is verified in step S214 whether a shutdown command has been received from the host device.
If it is determined in step S213 that a sleep command has been received from the host device, the process proceeds to step S212 described later.
If the host device enters the shutdown state, the power supply to the disk device 1 is cut off after a while, so it is necessary to shift to the ejection preparation state.
If it is determined in step S214 that a shutdown command has not been received from the host device, a command indicating whether the power source of the host device has been switched from the external power source to the internal power source, that is, the AC power source to the DC power source, in step S215. Verify whether you have come.
If the host device is, for example, a notebook personal computer and the power supply means is switched from the AC adapter to the DC battery, there is a possibility that an emergency has occurred due to, for example, a power failure.
Similarly, even if a desktop PC or server machine is connected to an uninterruptible power supplies (UPS) in preparation for a power failure, the same action is taken in response to a control signal issued by the UPS in the event of a power failure. There is a need.
Steps S214 and S215 are so-called manufacturer-specific commands that do not exist in the standard ATAPI standard and are generally called vendor-unique.
The disk device 1 according to the present invention enables or disables step S214 and step S215 by operating a flash memory, a jumper switch, or the like (not shown) in the microcomputer 70 immediately before shipment after completion of manufacture according to the delivery destination. it can.
If it is determined in step S214 that a shutdown command has been received from the host device, the process proceeds to step S212 described later.

If the determination results in steps S211, S213, S214, and S215 are true (Y), and after the processing in step S210, the “eject required preparation” flag is raised in step S212.
If the judgment result is false (N) after starting from step S208 and passing through steps S213, S214, or S215, this subroutine is executed without raising the above-described eject instruction flag and “preparation for ejection required” flag in step S216. finish.
The subroutine starting from step S207 and ending at step S216 is repeatedly executed in a short cycle.

As described above, the disk device 1 according to the present invention operates as follows:
(a) If the eject switch is pressed while the disc loading mechanism is maintaining the disc playback state, after the carrier block 13 is moved to the eject preparation state for moving the disc to the outermost peripheral position of the disc, the disc loading mechanism is driven to To a disc eject state where the disc can be ejected.
(b) Eject ready state in which the carrier block 13 is moved to the outermost peripheral position of the disc when it is determined that the predetermined condition is satisfied and the disc is suitable for ejection when the disc loading mechanism maintains the disc playback state. To move to.
(c) If the eject switch is pushed while the disc loading mechanism is in the eject ready state or if an eject command is received from the host device, the disc loading mechanism is immediately driven to shift to a disc ejection state where the disc can be ejected. .
Note that the predetermined condition in (b) corresponds to a command timeout from a higher-level device and a specific command. The specific command coming from the host device corresponds to the sleep command in the ATAPI standard, and the vendor-unique command is, for example, a command to notify the host device shutdown or the power supply means of the host device is switched. Applicable command.

The present invention is not limited to the above example, and various applications are possible. The following are listed:
(1) The outermost peripheral position detection switch 75 may not be a mechanical switch such as a push button switch. For example, an equivalent function can be realized even with a transmissive photo interrupter widely used in a known flexible magnetic disk device. In addition, the lens of the optical pickup 12 can be moved to a position beyond the outermost circumference of the disk D, and an anti-reflection plate is provided on the back side of the chassis case 2 of the disk device 1, so that the optical pickup 12 itself functions as a reflective photo interrupter. You may comprise so that it may do. That is, it can be determined that the optical pickup 12 has moved further outward from the outermost periphery of the disk due to the absence of reflected light. Alternatively, the control may be such that the disk outermost circumference is reached by continuing to drive the sled motor 16 from the innermost circumferential position of the carrier block 13 for a predetermined time or more.
(2) The measurement time of the software timer operated by the microcomputer 70 can be changed to an arbitrary time by controlling from the host device.
(3) When playing a disc containing music such as CD-DA or a disc containing moving images such as a DVD with the dedicated application software on the host device, all the contents on the disc When the playback of the disk is finished and the stop state is entered, if the application software is configured to issue a sleep command or a dedicated command to the disk device 1, it will immediately wait for the timer in the disk device 1 to time out. Can move to eject ready state. In this application example, it should be noted that although the entire host device is not in the sleep state, the application software issues a sleep command only to the disk device 1.
(4) Since various embodiments of the ejection mechanism can be considered, the ejection preparation state is not necessarily the state in which the carrier block 13 is at the outermost circumferential position of the disk. For example, when the carrier block 13 can be configured to be extremely thin, or when the spindle motor 11 is closer to the carrier block 13 when viewed from the buffer support structure 9a that supports the rotation of the drive system unit A, There may be an embodiment in which the ejection preparation state is entered when the carrier block 13 is at the innermost circumferential position of the disk. Also, if the lens of the pickup 12 is close to the disk D, if it is necessary to separate the lens from the disk D when loading and ejecting the disk D, the state where the lens is separated from the disk D is also an ejection ready state. It is. In short, when ejecting the disc D, a state that does not disturb the ejection operation is the ejection preparation state.
(5) In the embodiment, it is written on the assumption that it is used or connected to a host device such as a personal computer, but the embodiment is not limited to this. For example, a passenger car and a bus or train or The present invention can also be applied to a case where it is incorporated as a dedicated device for reproducing music and moving images in a transportation facility such as a passenger aircraft.
(6) In the embodiment, the disk device adopts a slot-in type loading mechanism, but the embodiment is not limited to this, and the present invention can be applied to, for example, a conventional tray-type disk device. Furthermore, although the embodiment has been described with a CD and / or DVD playback device, it can also be applied to a device that plays back / records a cartridge type disk such as MD / MO.

1 is a perspective view showing an external appearance of a disk device according to a first embodiment of the present invention. FIG. 2 is a plan view showing an internal structure of the disk device of FIG. 1. It is a perspective view which shows an internal structure in the disc apparatus of FIG. It is a figure which shows the internal structure in the bottom face of the disc apparatus of FIG. FIG. 2 is a diagram for explaining an operation state of the disk device of FIG. 1. It is a figure for demonstrating clamp operation | movement. It is a perspective view for demonstrating the structure of a disk support arm. It is a figure for demonstrating the state of carrying in of a disk. 3 is an exploded perspective view for explaining the configuration of a drive mechanism C. FIG. It is a figure for demonstrating a loading gear unit. It is a figure for demonstrating the operation state of a loading gear unit. It is a perspective view which shows the structure of a rack gear unit. It is a figure which shows the 1st process of operation | movement of a raising / lowering mechanism. It is a figure which shows the 2nd process of operation | movement of a raising / lowering mechanism. It is a figure which shows the 3rd process of operation | movement of a raising / lowering mechanism. It is a figure which shows the 4th process of operation | movement of a raising / lowering mechanism. It is a figure which shows the 5th process of operation | movement of a raising / lowering mechanism. It is a figure which shows the 6th process of operation | movement of a raising / lowering mechanism. It is a figure which shows the 7th process of operation | movement of a raising / lowering mechanism. It is a figure which shows the outward process in the raising / lowering operation | movement of a clamp head. It is a figure which shows the return path process in the raising / lowering operation | movement of a clamp head. FIG. 10 is a diagram showing a first step of an operation state of the disc support arm. FIG. 10 is a diagram showing a second step in the operating state of the disc support arm. FIG. 10 is a diagram showing a third step in the operating state of the disc support arm. FIG. 10 is a diagram showing a fourth step in the operating state of the disk support arm. FIG. 10 is a diagram showing a fifth step of the operating state of the disk support arm. It is a figure which shows the 6th process of the operation state of a disk support arm. It is a figure explaining the operation state at the time of carrying out of a disk support arm. It is a disassembled perspective view which shows the structure of the action | operation mechanism of an attracting arm. It is a disassembled perspective view of a lever arm. It is an assembly perspective view of a lever arm. It is a figure which shows the 1st process of operation | movement of an attracting arm. It is a figure which shows the 2nd process of operation | movement of an attracting arm. It is a figure which shows the 3rd process of operation | movement of an attracting arm. It is a figure which shows the 4th process of operation | movement of an attracting arm. It is a figure which shows the 5th process of operation | movement of an attracting arm. It is a top view for demonstrating the operation | movement aspect of a lever arm. It is sectional drawing for demonstrating the operation | movement aspect of a lever arm. FIG. 10 is a diagram showing a first step of the positional relationship between the rack main body and the stopper in normal clamping operation. FIG. 10 is a diagram showing a second step of the positional relationship between the rack main body and the stopper in normal clamping operation. FIG. 10 is a diagram showing a third step of the positional relationship between the rack main body and the stopper in normal clamping operation. FIG. 10 is a diagram showing a first step of the positional relationship between the rack main body and the stopper in an abnormal clamping operation. FIG. 10 is a diagram showing a second step of the positional relationship between the rack main body and the stopper in an abnormal clamping operation. FIG. 5 is a partially enlarged view of FIG. 4 showing a positional relationship among a rack main body, an ejection end detection switch, and a loading end detection switch. FIG. 3 is a plan view excerpted from the base panel of FIG. 2 showing the positional relationship of the outermost peripheral position detection switch. It is a figure for demonstrating a disk support arm and an angular position detection switch. It is a figure which shows the positional relationship of a disk, and the state of an angular position detection switch. FIG. 6 is a diagram showing a first step of the positional relationship between the angular position detection switch and the cam. FIG. 10 is a diagram showing a second step of the positional relationship between the angular position detection switch and the cam. FIG. 10 is a diagram showing a third step of the positional relationship between the angular position detection switch and the cam. FIG. 10 is a diagram showing a fourth step of the positional relationship between the angular position detection switch and the cam. It is a figure for demonstrating the control part of a disc apparatus. It is a time chart which shows the change of the logic of each detection switch in disk loading operation. It is a flowchart explaining disk loading operation | movement. It is a flowchart explaining a disc eject operation | movement. It is a flowchart explaining the setting of the flag which determines disc ejection operation | movement. It is a top view which shows the internal structure of the conventional disc apparatus.

Explanation of symbols

1 ・ ・ ・ ・ ・ ・ Disk device
2 ・ ・ ・ ・ ・ ・ Chassis case
3 ・ ・ ・ ・ ・ ・ Bezel
4 ・ ・ ・ ・ ・ ・ Eject switch
5 ・ ・ ・ ・ ・ ・ Indicator
6 ・ ・ ・ ・ ・ ・ Base panel
7 ・ ・ ・ ・ ・ ・ Clamp head
8 ・ ・ ・ ・ ・ ・ Frame material
9 ・ ・ ・ ・ ・ ・ Buffer support structure
10 ... Turntable
11 ・ ・ ・ ・ ・ Spindle motor
12 ... Optical pickup
13 ・ ・ ・ ・ ・ Carrier block
14 ・ 15 ・ ・ Guide shaft
16 ... Thread motor
17 ・ ・ ・ ・ ・ Disk support arm
18 ... Holder
19 ・ ・ ・ ・ ・ Support plate
20 ・ ・ ・ ・ ・ Pivot pin
21 ... First link arm
22 ... Tension coil spring
23 …… Second link arm
24 ... Rivet pin
25 ・ ・ ・ ・ ・ Pivot pin
26 ・ ・ ・ ・ ・ Lock lever
27 ・ ・ ・ ・ ・ Torsion coil spring
28 ・ ・ ・ ・ ・ Angle position detection switch
28a ・ ・ ・ ・ ・ Drive start position detection switch
28b ・ ・ ・ ・ ・ Intermediate position detection switch
29 ・ ・ ・ ・ ・ Start-up pin
30 ... Loading motor
31 ・ ・ ・ ・ ・ Worm gear
32 ・ ・ ・ ・ ・ Double gear
33 ・ ・ ・ ・ ・ Double gear
34 ・ ・ ・ ・ ・ Double gear
35 ・ ・ ・ ・ ・ Gear base
36 ... Holder
37 ・ ・ ・ ・ ・ Pivot pin
38 ・ ・ ・ ・ ・ Compression coil spring
39 ・ ・ ・ ・ ・ Limit switch
40 ・ ・ ・ ・ ・ Slider material
41 ・ ・ ・ ・ ・ Pivot pin
42 ... Tension coil spring
43 ・ ・ ・ ・ ・ Rack main body
44 ・ ・ ・ ・ ・ Lever arm
45 ・ ・ ・ ・ ・ Gear member
46 ・ ・ ・ ・ ・ Pressing pin
47 ・ ・ ・ ・ ・ Double gear
48 ・ ・ ・ ・ ・ Gear frame
49 ・ ・ ・ ・ ・ Operating piece
50 ... Attraction arm
51 ・ ・ ・ ・ ・ Sliding member
52 ・ ・ ・ ・ ・ Sliding member
53 ・ ・ ・ ・ ・ Driver pin
54 ・ ・ ・ ・ ・ Elastic ring
55a ... Link members
55b ... Link members
55c ... Drive pin
56 ・ ・ ・ ・ ・ Clamp release pin
57 ・ ・ ・ ・ ・ Driver pin
58 ・ ・ ・ ・ ・ Pivot pin
59 ・ ・ ・ ・ ・ Pivot pin
60 ... Laura
70: Microcomputer
71 ・ ・ ・ ・ ・ Motor driver
72 ・ ・ ・ ・ ・ Stopper
73 ... Opening
74 ・ ・ ・ ・ ・ Spacer
75 …… Outermost circumference position detection switch
76 ・ ・ ・ ・ ・ Data processing section
77 ・ ・ ・ ・ ・ Signal processing circuit
79 ・ ・ ・ ・ ・ Lead screw
80 ... Eject end detection switch
81 ・ ・ ・ ・ ・ Loading end detection switch
83 ・ ・ ・ ・ ・ Leaf spring
84 ・ ・ ・ ・ ・ Still
A ・ ・ ・ ・ ・ ・ Drive system unit
B ・ ・ ・ ・ ・ ・ Head unit
C ... Drive mechanism
D ・ ・ ・ ・ ・ ・ Disc
E ・ ・ ・ ・ ・ ・ Transport mechanism
R1, R2, R3, R4, R5, R6 ・ ・ ・ ・ ・ ・ Resistance

Claims (4)

It is an exchangeable disk reproducing device that reproduces information from an information recording disk that is clamped on a spindle motor shaft and driven to rotate.
The exchangeable disc player is
A disc loading mechanism for clamping an information recording disc to the shaft of the spindle motor or releasing the clamp;
Control means for controlling the disk loading mechanism;
Emergency eject mechanism that ejects the information recording disc by manual operation when the power is turned off,
A pickup for reading information from an information recording disk, a pickup moving mechanism for moving the pickup in the radial direction of the information recording disk, and supporting the pickup moving mechanism and the spindle motor, and the information recording disk on the spindle motor shaft A spindle motor raising and lowering mechanism for raising the spindle motor when clamping the spindle and lowering the spindle motor when releasing the clamp of the information recording disk from the spindle motor shaft,
The disc loading mechanism further includes a disc playback state in which information can be played back in a state where an information recording disc is clamped on the spindle motor shaft, and the pickup is out of a moving range of the pickup moving mechanism. While maintaining the eject preparation state at a position that does not prevent the spindle motor from being lowered during the clamp release operation by the spindle motor lifting mechanism, and the disc ejection state in which the clamp of the information recording disc is released from the spindle motor shaft, respectively. The transition from the disc playback state to the disc ejection state and the transition from the disc ejection state to the disc playback state always pass through the ejection preparation state,
The control means controls to move the pickup to the ejection preparation state when it detects that an operation command coming from a host device does not come for a predetermined time while the loading mechanism maintains the reproduction state. An interchangeable disc reproducing apparatus characterized by the above . It is an exchangeable disk reproducing device that reproduces information from an information recording disk that is clamped on a spindle motor shaft and driven to rotate.
The exchangeable disc player is
A disc loading mechanism for clamping an information recording disc to the shaft of the spindle motor or releasing the clamp;
Control means for controlling the disk loading mechanism;
Emergency eject mechanism that ejects the information recording disc by manual operation when the power is turned off,
A pickup for reading information from an information recording disk, a pickup moving mechanism for moving the pickup in the radial direction of the information recording disk, and supporting the pickup moving mechanism and the spindle motor, and the information recording disk on the spindle motor shaft A spindle motor raising and lowering mechanism for raising the spindle motor when clamping the spindle and lowering the spindle motor when releasing the clamp of the information recording disk from the spindle motor shaft,
The disc loading mechanism further includes a disc playback state in which information can be played back in a state where an information recording disc is clamped on the spindle motor shaft, and the pickup is out of a moving range of the pickup moving mechanism. While maintaining the eject preparation state at a position that does not prevent the spindle motor from being lowered during the clamp release operation by the spindle motor lifting mechanism, and the disc ejection state for releasing the clamp of the information recording disc from the spindle motor shaft, respectively. The transition from the disc playback state to the disc ejection state and the transition from the disc ejection state to the disc playback state always pass through the ejection preparation state,
The control means controls to shift the pickup to the ejection preparation state when detecting that a sleep command is received from a host device while the loading mechanism is maintaining the reproduction state. Exchangeable disc player. It is an exchangeable disk reproducing device that reproduces information from an information recording disk that is clamped on a spindle motor shaft and driven to rotate.
The exchangeable disc player is
A disc loading mechanism for clamping an information recording disc to the shaft of the spindle motor or releasing the clamp;
Control means for controlling the disk loading mechanism;
Emergency eject mechanism that ejects the information recording disc by manual operation when the power is turned off,
A pickup for reading information from an information recording disk, a pickup moving mechanism for moving the pickup in the radial direction of the information recording disk, and supporting the pickup moving mechanism and the spindle motor, and the information recording disk on the spindle motor shaft A spindle motor raising and lowering mechanism for raising the spindle motor when clamping the spindle and lowering the spindle motor when releasing the clamp of the information recording disk from the spindle motor shaft,
The disc loading mechanism further includes a disc playback state in which information can be played back in a state where an information recording disc is clamped on the spindle motor shaft, and the pickup is out of a moving range of the pickup moving mechanism. While maintaining the eject preparation state at a position that does not prevent the spindle motor from being lowered during the clamp release operation by the spindle motor lifting mechanism, and the disc ejection state for releasing the clamp of the information recording disc from the spindle motor shaft, respectively. The transition from the disc playback state to the disc ejection state and the transition from the disc ejection state to the disc playback state always pass through the ejection preparation state,
When the control unit detects that information indicating that the host device itself is finished operating is received from the host device while the loading mechanism is maintaining the reproduction state, the control unit moves the pickup to the eject preparation state. An exchangeable disc reproducing apparatus characterized in that it is controlled to be shifted . It is an exchangeable disk reproducing device that reproduces information from an information recording disk that is clamped on a spindle motor shaft and driven to rotate.
The exchangeable disc player is
A disc loading mechanism for clamping an information recording disc to the shaft of the spindle motor or releasing the clamp;
Control means for controlling the disk loading mechanism;
Emergency eject mechanism that ejects the information recording disc by manual operation when the power is turned off,
A pickup for reading information from an information recording disk, a pickup moving mechanism for moving the pickup in the radial direction of the information recording disk, and supporting the pickup moving mechanism and the spindle motor, and the information recording disk on the spindle motor shaft A spindle motor raising and lowering mechanism for raising the spindle motor when clamping the spindle and lowering the spindle motor when releasing the clamp of the information recording disk from the spindle motor shaft,
The disc loading mechanism further includes a disc playback state in which information can be played back in a state where an information recording disc is clamped on the spindle motor shaft, and the pickup is out of a moving range of the pickup moving mechanism. While maintaining the eject preparation state at a position that does not prevent the spindle motor from being lowered during the clamp release operation by the spindle motor lifting mechanism, and the disc ejection state for releasing the clamp of the information recording disc from the spindle motor shaft, respectively. The transition from the disc playback state to the disc ejection state and the transition from the disc ejection state to the disc playback state always pass through the ejection preparation state,
When the control unit detects that information indicating that the power supply state of the host device has been changed is detected while the loading mechanism is maintaining the reproduction state, the control unit shifts the pickup to the ejection preparation state. An exchangeable disc reproducing apparatus characterized in that it is controlled so as to be controlled .

Images