JPH0935394A - Disk reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the surface of a disk from flawing by providing a control means for opening a door upon insertion of the disk into a disk inserting hole by forcedly draw open the door against a spring means. SOLUTION: The door 11 is fixed with a reinforcing plate 12 in its inner surface, and is freely openably and closably fitted to a front panel 1 by axes 15A and 15B to close the disk inserting hole 1A, the upper end 11c of the door 11 is inclined to make its height lower toward the center from right and left side in order to prevent the disk from flawing. The output of an optical sensor 1631 forms a door closing signal, becoming the state of 'H' when the door 11 is closed. Further, a disk fall-off preventing material 8 composed of felt cut with a slit 8A is stuck to the inner surface of the front panel 1, and the disk brought into its ejecting position is held by the disk fall-off preventing material 8 with its slit 8A, and hence the disk is prevented from falling off at the disk inserting hole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc reproducing apparatus provided with a door capable of opening and closing a disc insertion slot into which a disc is inserted.

[0002]

2. Description of the Related Art Heretofore, Japanese Patent Publication No. 6-95420 has proposed a disk reproducing apparatus having a door capable of opening and closing a carrier opening. According to the device described in this publication, the door is biased by the coil spring in the direction of closing the carrier opening, and when the carrier transport mechanism transports the carrier vertically upward, the member forming the carrier transport mechanism is It abuts a part and is brought to the open position.

[0003]

Also in a so-called slot-in type disc reproducing apparatus for inserting a disc into the disc insertion opening, a door for opening and closing the disc insertion opening is provided similarly to the above-mentioned apparatus, and the door is opened and closed by a door opening / closing mechanism. It is conceivable to let it open against. However, according to such a device, the operator forcibly opens the closed door by hand without using the door opening / closing mechanism,
It is possible that a disc is inserted into the disc insertion slot. In this case, the door keeps engaging with the surface of the inserted disc by the urging force of the spring until the disc is inserted into the disc reproducing apparatus, so that the disc surface is easily damaged and the smoothness is not achieved. There was a problem that disk transfer could not be achieved.

On the other hand, according to Japanese Utility Model Publication No. 2-6560, the free end side of the door which is opened and closed by the disc insertion force is an inclined surface which becomes gradually narrower from its peripheral portion to its central portion,
It has been proposed to prevent damage to the disc when it is inserted or removed. Therefore, even in the above-mentioned device, it is possible to prevent the damage of the disc by making the upper end of the door an inclined surface, but since the operator easily inserts the disc while pushing it downward, the disc warps and the inclination is increased. Even though there is a surface, the upper edge of the door makes surface contact with the disk surface,
Further, there remains a problem that smooth disk transfer cannot be achieved.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a disc reproducing apparatus which solves the above-mentioned problems. The disc reproducing apparatus is formed in the disc reproducing apparatus, and the disc is inserted into the disc inserting opening and the disc inserting opening. Disk transfer means for transferring the stored disk into the disk player, a door rotatably supported outside the disk player and capable of opening and closing the disk insertion opening, and spring means for urging the door in the closing direction. , A door opening / closing mechanism that opens the door to the outside of the device, and when the door is forcibly opened against the spring means and a disc is inserted into the disc insertion opening, the door opening / closing mechanism is controlled to open the door. And a control means.

[0006]

According to the above-mentioned device of the present invention, the control means controls the door opening / closing mechanism to open the door when the door is forcibly pulled open against the spring means and the disk is inserted into the disk insertion opening. Let it open.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the apparatus of this embodiment, the disc (CD-ROM) inserted from the disc insertion opening is stored in the stocker arranged in the apparatus, so that the selective reproduction of the plurality of discs stored in the stocker can be performed. It constitutes a possible stocker type changer type disk reproducing device. Also, in order to achieve built-in in the main body of the computer, the outer shape is 5-1 / 4 inch which is the standard size of peripheral equipment, and the half height form factor (H × width W × depth D is 41.5). X 146 x 208 (mm)).

<< Chassis >> FIG. 1 shows the disc reproducing apparatus 10 according to the present invention.
A 00 chassis configuration is shown. Disc player 1
000 is basically composed of three chassis including a front chassis 2, a main chassis 20, and a loading chassis 100. The front chassis 2 is fixed to the front surface of the main chassis 20, and the loading chassis 100 is fixed to the upper surface of the main chassis 20. It The front panel 1 is attached to the front surface of the front chassis 2, and the top cover 3 and the bottom cover 4 are attached to the upper and lower ends of the main chassis 20, respectively. The front panel 1 is formed with a disc insertion opening 1A, and the disc insertion opening 1A has a vertical interval that increases from the left and right ends toward the center so as not to damage the disc recording surface when the disc is inserted or removed.

<< Disk Transfer Mechanism >> The details of the disk transfer mechanism 1001 are shown in FIGS. The disc transfer mechanism 1001 is composed of a drive side disc guide portion 1002 (see FIG. 3) arranged on the left side of the apparatus and a fixed side disc guide portion 1003 (see FIG. 4) arranged on the right side of the apparatus, and is inserted into the disc insertion opening 1A. It is supported on the lower surface of the loading chassis 100 so as to be movable left and right so as to hold the peripheral edge of the disk.

L-shaped loading plates 104, 1
Reference numeral 40 denotes a plate serving as a base for the drive side disc guide portion 1002 and the fixed side disc guide portion 1003, respectively, and the loading collar 120A fixed to the upper surface thereof.
-120C, 120D-120F are guide grooves 100A-100C, 100D-10 of the loading chassis 100.
Loading chassis 10 by being inserted into 0F
It is hung on the lower surface of 0 so that it can move left and right. A rack 1 is provided on the opposite sides of the loading plates 104 and 140.
04A and 140A are formed and are connected to the lower surface of the chassis 100 so as to face each other by a pinion gear 143 pivotally supported. Further, the loading plates 104 and 140
A spring 160 is hung between them and urged in the direction of approaching.

A shutter piece 104B is formed on the front side of the loading plate 104L by bending, and its closed position is detected by an optical sensor 163B protruding from the lower surface of the loading chassis 100. It The output of the optical sensor-163B is the loading-in signal (I
N) to form plate 10 as shown in FIG.
When the distance between the belts 107 and 142 supported by the rollers 4 and 140 becomes 115.7 mm or less, the state becomes “H”.

FIG. 3 shows details of the drive side disk guide portion 1002. The upper disc guide 121 is formed of a resin having a low coefficient of friction such as Duracon, and the lower surface thereof is a guide groove 1 for restricting vertical movement on the left side of the disc periphery.
Form the upper half of 21 '(see Figure 5). The lower surface of the upper disk guide 9 is provided with an inclined surface 121A inclined at 45 degrees in its longitudinal direction, and the lower surface of the inclined surface 121A has a horizontal surface 12A.
1B is formed. On the other hand, the lower disc guide 12
Reference numeral 2 forms the lower half of the guide groove 121 ', and is provided with an inclined surface 122A inclined by 45 degrees in the opposite direction to the above-mentioned inclined surface 121A in the longitudinal direction thereof, and a horizontal surface 122B is formed at the upper end thereof. The distance between the horizontal surfaces 121B and 122B is 1.5 m, which is slightly wider than the thickness of the disc (1.2 mm).
The horizontal planes 121B and 122B engage with edge portions (unrecorded portions) on the upper surface Du and the lower surface Dl of the disc, respectively, and regulate the vertical movement of the left side of the disc.

Further, timing pulleys 106 and 108 are provided at the front end and the rear end of the upper disc guide 121, respectively.
A timing belt 107, which is axially supported by 05 and 109 and drives the peripheral edge of the disk guided between the horizontal surfaces 121B and 122B, is stretched between the pulleys.
The lower disk guide 122 includes a restriction wall 122C that is in sliding contact with the inner surface (teeth) 107B of the timing belt 107,
The inward displacement of the timing belt 107 is prevented (see FIG. 7).

FIG. 9 shows a pulley drive mechanism 1004 for rotationally driving the timing pulley 105 described above.
The drive motor 190A has a rubber grommet 19 at its rear end.
6A is mounted and fixed between the motor bracket 195 and the cut and raised portion 180A of the motor chassis 180.
The gear member 188 is axially supported by the chassis 180 by a shaft 181, and a gear 188B formed below the gear member 188 is a motor 190.
It meshes with the worm 191A press-fitted into the A rotation shaft.
The loading links 123 and 124 are rotatably connected by a rotation shaft of a gear 125B, and the shaft 105 of the pulley 106 is rotatably attached to the free end of the link 124. On the other hand, the shaft 128 is fixed to the free end of the link 123 and is inserted into the central hole 181A of the shaft 181. The plate 124 is rotatably supported by a gear 125A connecting the gear 106B formed at the lower end of the pulley 106 and the gear 125B, and the plate 123A is formed above the gear 125B and the gear member 188. A gear 125C connecting the 188A is pivotally supported.

According to the above structure, the loading links 123 and 124 are rotated in conjunction with the left and right movement of the timing pulley 106, and the gear member 188 is rotated by the gear 125A.
~ 125C to the timing pulley 106. Therefore, the drive motor 190A is connected to the timing pulley 1
It is not necessary to move in the device together with 06, which contributes to downsizing of the device. Further, since the load load on the loading plate 104 is reduced, the loading plates 104 and 1
The spring 160 hung between 40 can be set weakly, and the disc can be smoothly inserted.

The gear member 188 has a shutter 188C at its lower end, and its rotation is detected by an optical sensor-163C attached to the motor chassis 180. The output of the optical sensor-163C forms a loading pulse signal (bar L.PULSE), which indicates that the disk has moved approximately 0.46 mm per pulse according to the apparatus of this embodiment.

Also, in order to enable removal of the disk in the device when the device cannot be energized, such as when the device fails or is removed from the personal computer, the end of the above-mentioned worm gear 191A. Gear 1 in the section
91A2 is formed and shaft 1 of the motor racket 195
An emergency gear 193 that engages with the gear 191A2 is attached to 95A. Then, on the side surface of the main chassis 20, the opening 2 is provided at a position facing the gear 193.
0A is formed, and the emergency gear 193 is exposed to the outside of the device. Therefore, the operator can manually rotate the emergency gear 193 through the opening 20A even when the device is out of order or in the state where the device is detached from the personal computer, so that the disc left in the device which is being transferred can be removed. It can be easily taken out from the disc insertion slot.

On the other hand, FIG. 4 shows the fixed side disk guide portion 10.
03 details are shown. The disc guide 141 is formed of a resin material having a low friction coefficient like the above-mentioned disc guides 104 and 122, and a guide groove 141 ′ for restricting vertical movement on the right side of the disc is formed in its longitudinal direction. As shown in FIG. 6, the guide groove 141 ′ is composed of inclined surfaces 141A and 141B and a U-shaped groove 141C, and a taper-shaped disc introducing portion 141D (see FIG. 8) is provided at the front end of the guide. Has been formed. In addition,
The vertical interval of the groove 141C is set to 1.5 mm, which is the same as the guide groove 9'described above.

A friction belt 142 made of a material (plastic rubber or the like) having a high friction coefficient is inserted and fixed in the groove 141C so as to prevent slippage with the disk outer peripheral surface De. As shown in FIG. 6, the left side surface of the friction belt 142 is a V-shaped groove 142A composed of inclined surfaces 142A1 and 142A2, and the inclined surfaces 142B1 and 142B14.
2B2 engage with the edge Dc1 of the disk upper surface Du and the edge Dc2 of the disk lower surface Du, respectively, and regulate the vertical movement of the disk right side.

According to the disc transfer mechanism 1001 described above, when the disc is not inserted as shown in FIG.
The right end 104B of the plate 104 is engaged with the stopper portion 141D (see FIG. 4) of the disk guide 141 by the urging force of 0, and the separation distance between the belts 107 and 142 supported by the loading plates 104 and 140. W1 has a diameter of 120
The disc receiving position POS. Positioned at 1.

When the disc is inserted into the disc insertion opening 1A, the peripheral edge De of the disc first has a pulley winding portion 107C and an introduction portion 141D of the timing belt 107 (see FIG. 8).
(See reference). As described above, the introduction part 141
Since D is made of a resin material having a low friction coefficient, it easily slips on the disk periphery and makes the opening movement of the loading plate smooth. When the disc is inserted to the position indicated by P1 in FIG. 11, the loading play
The belts 104 and 140 are widened to a position where the belt distance W2 is 115.7 mm, the output (loading-in signal IN) of the optical sensor-163B changes to "L", and disk loading is started.

The disc transfer mechanism 1001 rotates the timing belt 107 counterclockwise in order to draw the disc D into the apparatus. However, since the peripheral edge De of the disc is engaged with the introduction portion 141D, the disc is omitted. Position P
The disk is rotated in the clockwise direction as it is, and the disk insertion operation by the operator is still required for disk loading thereafter. Here, the operator generally holds the disc D by inserting the disc spindle hole Ds and the disc peripheral edge De with the index finger (or middle finger) of the right hand and the thumb, and inserts the disc D in the clockwise direction with the right hand. It is less unreasonable to be twisted by being driven to rotate. For this purpose, the disc transfer device 1001 rotates the disc D in the clockwise direction to load the disc D into the device.
3 is located on the right side of the device.

When the disk transfer mechanism 1001 holds the left and right ends of the disk D between the timing belt 107 and the friction belt 142, the disk D is then transferred to the disk D.
12 can be stably transferred, and as shown in FIG. 12, it can be brought to the stock position P4 to be stored in the stocker main body 41 via the reproduction position P3. According to the apparatus of this embodiment, in order to reduce the depth dimension of the apparatus, the reproducing position is arranged so that a part of the reproducing disk overlaps the disk stored in the stocker. Further, the disc transfer mechanism 1001 includes the timing belt 10
By rotating 7 in a clockwise direction, the disc at the stock position (P4) can be brought to the eject position P5 for ejecting the disc via the reproduction position P3 as shown in FIG. According to the device of the present embodiment, at the eject position, the spindle hole Ds of the disc projects from the disc insertion opening 1A to the outside of the device,
The space W1 between the belts 14 and 12 is closed to a space (112 mm) which is substantially the same as the disk receiving state described above.

<< Optical Mechanism >> FIG. 15 shows the details of the optical mechanism 1006. Optical mechanism 1006 is mechanical chassis 2
00, turntable 222, optical pickup 21
0, optical pickup feed mechanism 233, etc.,
A disc D (not shown) mounted on the turntable 222 is rotationally driven for optical reproduction.

The turntable 222 is a mechanical chassis 200.
Is fixed to the rotary shaft of a spindle motor 211 fixed to the lower surface of the. A convex centering portion 223 for centering the disk D is provided on the upper surface of the turn table 222.
Is formed, and a magnet 224 for attracting a clamper 1009, which will be described later, is fixed to the inside thereof. The optical pickup 210 is guided by guide rods 220 and 221 fixed to the mechanical chassis 200 so as to be movable with an inclination angle of 25 degrees with respect to the front surface of the apparatus. Also,
A feed motor 212 is fixed to the lower surface of the mechanical chassis 200, and its rotation is performed by the gears 206B, 207A, 2 and 2.
Thread rack 2 via 07B, 208A, 208B
09, the optical pickup 210 is driven in the radial direction of the disc. A shutter 206A is formed on the upper surface of the gear 206B, and the optical sensor-213 detects the moving distance of the optical pickup.

<< Support of Optical Mechanism >> In order to prevent external vibration from being transmitted to the optical mechanism 1006, the mechanical chassis 20
The dampers 21 are respectively provided in the round holes 200A formed at the four corners of 0.
4 is attached and fixed to the suspension base 230 by the screw 215 via the damper 214. On the other hand, the suspension 23
Pins 231 and 232 are fixed to the left and right side surfaces of 0, and are inserted into guide grooves of UD cams 197 and 82 described later.

<< Optical Mechanism Vertical Mechanism >> The above-mentioned optical mechanism 1
FIG. 16 shows an optical mechanical up-and-down mechanism 1008 that moves 006 between an up position for playing a disc and a down position retracted below the playback disc. U
The D cams 197 and 82 are guide plates 19 fixed to the right side surfaces of the motor chassis 180 and the main chassis 20, respectively.
It is guided in the front-rear direction of the device by 8, 83. UD
Pins 197C and 82C are formed on the rear end sides of the cams 197 and 82 so as to project downward, and holes 85A of a UD link arm 85 pivotally supported by the shaft 21 on the lower surface of the main chassis 20. , 85B. Result, UD
The cams 197 and 82 are connected by a UD link arm 85 so as to move in opposite directions.

The UD cams 197 and 82 are formed with guide grooves 197A and 82A for guiding the pins 231 and 232 of the above-mentioned suspension base 230. As described above, since the UD cams 197 and 82 move in opposite directions, the guide groove 197A is inclined in the opposite direction with respect to the guide groove 82A. Guide plates 198 and 83 are also
Guide grooves 198A and 83A for vertically guiding the pins 231 and 232 of the suspension base 230 are formed.
As described above, the movement of the UD cams 197 and 82 moves the suspension 230, that is, the optical mechanism 1006 up and down.

On the other hand, the drive motor 190B has a rubber grommet 196B mounted on the bottom surface thereof, and is fixed between the motor bracket 194 and the cut-and-raised portion 180B of the motor chassis 180. The gear member 187 is rotatably supported by the chassis 180 by a shaft 182, and a gear 187 formed on the lower portion of the gear member 187 meshes with a worm gear 191B press-fitted to the rotary shaft of the motor 190B. A worm 187B is formed above the gear 187C and meshes with the gear 185A of the gear member 185. The gear member 185 is the shaft 18
The gear 185B formed on the bottom surface of the chassis 180 is UD-supported from the inside of the right side surface of the chassis 180 toward the left side by UD.
The cam 197 meshes with the rack 197D. From the above,
The rotation of the motor 190B is the worm 191B1, the gear 18
7C, the worm 187B, the gears 185A, 185B, and the rack 197D to move the UD cam 82 via the UD cam 197 and the UD link arm 85.

The positional relationship between the UD cam 82 and the optical mechanism 1006 will be described below. The position DOWN shown in FIG.
-2 and the position DOWN-1 shown in FIG. 18, the UD cam 82 guides the pin 232 of the sustain 230 by the horizontal portion G1 of the guide groove 82A, and the optical mechanism 1006 is played at the disc at the reproducing position. It is kept in the down position retracted below D (see FIG. 47). While moving between the position DOWN-1 shown in FIG. 18 and the position UP-1 shown in FIG. 19, the UD cam 82 has the inclined portion G2 of the guide groove 82A.
Guides the pin 232 and moves the optical mechanism 1006 up and down. UD cam 82 while moving between position UP-1 shown in FIG. 19 and position UP-2 shown in FIG.
Guides the pin 232 by the horizontal portion G3 of the guide groove 82A, and keeps the optical mechanism 1006 at the up position for reproducing the disc. According to the apparatus of this embodiment, when the disk mounting surface of the turntable 222 is brought to the up position, it is raised to the same height as the lower surface of the disk D brought to the reproducing position. Therefore, the turntable 222 does not lift the reproduction disc unlike the tray type disc reproduction device.

On the other hand, the gear member 187 has a shutter 187D formed at the lower end thereof, and the rotation thereof is detected by an optical sensor-163D attached to the motor chassis 180. The output of the optical sensor-163D forms a UD cam movement pulse signal (bar P.PULSE), and indicates that the UD cam 197 has moved by about 0.19 mm per pulse.
A shutter piece 197E is formed on the UD cam 197, and the reference position thereof is detected by an optical sensor-163E fixed to the front chassis 2 (not shown). The output of the sensor-163E is the UD cam reference position signal (ver
P. REF) signal, as shown in FIG.
When the UD cam 197 is located at the position in the DOWN direction from the position approximately midway between the position DOWN-1 and the position UP-2, the "L" state is set.

Therefore, each position of the UD cam described above is a bar.
P. The state change of the REF signal is used as a reference, and thereafter, the bar P.
It is detected by pulse counting the PULSE signal. As shown in FIG. 47, the position DOWN-1 is U
The D cam 197 is moved in the DOWN direction, and the bar P.P. RE
F changes to "L" and then P. PULSE signal to 11
Position DOWN detected by pulse counting
-2 is a bar P. It is detected by counting 32 pulses of the PULSE signal. On the other hand, the position UP-1 moves the UD cam 197 in the UP direction, and the bar UP. After REF changes to "H", the bar P. The position UP-2 is detected by counting 26 pulses of the PULSE signal. It is detected by counting 47 pulses of the PULSE signal.

A gear 191B2 is provided at the lower end of the above-mentioned worm gear 191B in order to release the disc clamp when the motor cannot be energized, such as when the device fails or is detached from the personal computer. An emergency gear 192, which is formed and meshes with the gear 191B2, is attached to the shaft 194A of the motor bracket 194. Further, on the side surface of the main chassis 20, an opening 20B (see FIG. 9) is provided at a position facing the gear 192.
(See FIG. 3) is formed to expose the emergency gear 192 to the outside of the device. Therefore, the operator can release the disc clamp by manually rotating the emergency gear 192 through the opening 20B when the device malfunctions, and subsequently, the emergency jean gear through the opening 20A described above. If 193 is rotated manually (see Fig. 9), the unclamped disc will be inserted into the disc insertion slot 1
It can be taken out from A.

<< Loading Plate Opening / Closing Mechanism >>
The above-mentioned loading plates 104 and 140 are opened and closed by the rotation of the drive motor 190B. Hereinafter, the loading plate opening / closing mechanism 1005
16, the gear 187A is formed above the worm 187B and meshes with the gear 186A formed on the peripheral surface of the loading plate cam 186. As shown in FIG. . Loading Plate Cam 1
86 is pivotally supported on the upper surface of the motor chassis 180 by a shaft 183, and the disk guide 12 described above is mounted on the upper surface.
A cam 186B that can be engaged with a pin 122A (see FIG. 3) that is formed to project from the lower surface of No. 2 is formed.

When UD cam 197 is in position DOWN-2, loading plate cam 186 is brought to the angle shown in FIG. At this time, the cam 186B does not engage with the pin 122A of the disc guide 122,
The loading plates 104 and 140 are connected to the disk receiving position POS. The state brought to 1 is maintained (Fig. 1
0). When the motor 190B rotates and the UD cam 197 moves to the position DOWN-1, the loading play is completed.
The cam 186 rotates counterclockwise to the angle shown in FIG. 22, but the cam 186B still does not engage the pin 122A.

When the UD cam 197 moves to the position UP-1, the loading cam 186 rotates counterclockwise to the angle shown in FIG. Then, the outer peripheral surface of the cam 186B is engaged with the pin 122A of the disc guide 122, and the disc receiving position POS. The loading plates 104 and 140 located at 1 are moved slightly open against the urging force of the spring 160. Note that, as shown in FIG.
The disk holding position POS. Where the loading plates 104 and 140 hold the disk. 2 (see FIG. 12), the cam 186B has not yet engaged the pin 122A. When the UD cam 197 moves to the position UP-2, the loading cam 186 rotates counterclockwise to the angle shown in FIG. 25, and its outer peripheral surface causes the pin 122A to rotate.
To push the loading plates 104 and 140 into the open position POS. 3 to move the belts 107 and 142 away from the disk outer peripheral surface De (see FIG. 13).

<< Clamper >> FIG. 2 shows a clamper 1009 for clamping the disc on the turntable. The clamper 1009 is composed of a clamper base 225 and a clamp top 227, and the magnetic plate 111 facing the magnet 223 (see FIG. 15) is mounted on the lower surface of the clamper base 225. The clamp top 227 has a substantially T-shaped cross section, and its flange portion 2
27A is tapered toward the periphery. The shaft portion 227B is the opening 1 of the loading chassis 100.
00I, and is integrated with the clamper base 225 via a disk guide upper-144 fixed to the lower surface of the loading plate 100. The disc guide upper-144 prevents an excessive inclination of the clamper by the clamper guide portion 144B, and the inclined surface 144 on the lower surface thereof.
A prevents the front end of the disc inserted into the disc insertion opening 1A from tilting.

<< Clamper Holding Mechanism >> Further, on the upper surface of the loading plate 100, a clamper holding mechanism 1010 for holding the clamper 1009 at a retracted position 0.5 mm above the reproducing disk D is provided. The clamper holders 145, 146 are provided with holding portions 145C, 146C for holding the above-mentioned flange portion 227A at opposite ends, and the pins 145A, 146A formed on the lower surface of the clamper holders 145, 146 form the openings 100G, 100H of the loading chassis 100. In the guide grooves 104D and 140D formed through the loading plates 104 and 140 penetrating therethrough, and the inverted T-shaped guide pieces 145B and 146B formed on the lower surface, the opening 1 is formed.
By being inserted in a groove extending from 00I to the left and right, the upper surface of the loading chassis 100 is guided so as to be movable left and right. Further, the clamper holders 145 and 146 are the spring 1
It is biased by 61.

According to the above construction, the clamper holder 14
5, 146, loading plates 104 and 140 are disk receiving positions POS. 1 (see FIG. 10) and the disc holding position POS. 2 (see FIG. 12), the pins 145A, 146A of which are loaded on the loading plate 10.
4, 140 relatively moves in the guide grooves 104D and 140D. Therefore, during this time, the clamper holders 145, 146 are held by the springs 161 by the biasing force of the springs 161.
Hold the flange portion 227A between the
Is kept at the retracted position which is 0.5 mm above the disc D at the reproduction position (see FIG. 17).

The loading plates 104 and 140 are located at the disk holding position POS. When unfolded from 2, the pins 145A and 146A of the clamper holders 145 and 146 engage with the ends of the guide grooves 104D and 140D, and thus move open as the loading plate moves. The loading plates 104 and 140 are in the open position POS. 3, the clamper holders 145 and 146 completely release the holding of the flange portion 227A, and the clamper 1009 is attracted to the magnet 224 of the turntable 222.
Turntable 2 of the disc D brought to the playback position
Hold between 22 and.

<< Stocker >> The stocker 10 is shown in FIGS.
11 is shown. The stocker body 41 has a substantially crescent shape when viewed from above, and has a size of 3 mm so that four disks transferred by the disk transfer mechanism 1001 can be stored.
Pitch disc storage slots 41A to 41D are formed. The front ends of the slots 41A to 41D have a tapered shape in cross section, and the lower surface 41A 'of each slot is
41D 'supports the peripheral edge of the disc (see FIG. 30). In addition, the stocker body 41 has slots 41A to 41A.
Openings 41E to 41H that penetrate D and the back surface are formed, and wedge members 51A and 51B to be described later are inserted into the respective openings.

The wedge members 51A and 51B are for removing rattling of the disks housed in the respective slots.
Although the lengths are slightly different, the screws 5 are formed substantially symmetrically.
0, the stocker main body 41 is fixed to the base plate 40, and is fixed to the upper surface of the mounting portion 41 '. The wedge members 51A and 51B are composed of wedge portions 510A to 510D, spring portions 511A to 511D, and an attachment portion 512,
It is integrally molded with a resin material (see FIGS. 28 to 30). The spring portions 511A to 511D are formed by thinly extending from the mounting portion 512 like a fork tip, and the wedge portions 510A to 510D formed at the tip thereof are formed on the inclined surface 510.
A'-510D 'are urged in a direction to engage with the edge of the disc upper surface. The wedge portions 510A to 510D are inclined at an angle of approximately 30 degrees with respect to the disc upper surface Du, and can be engaged with the edges of the disc upper surface 510A 'to 51D.
0D 'and the lower surface 41A' to 41 of the disk storage slot
D'is engageable with a flat surface 510A "to 510D", and the disk upper surface Du inserted into each slot through the openings 41E to 41H formed in the stocker and the disk storage slot upper surface 41A "to 41D". Inserted in between.

According to the above construction, the wedge portions 510A-
510D presses the disc downward, which is perpendicular to the recording surface Dl, by the urging force of the spring portions 511A to 511D, and removes rattling of the disc inserted in the slot. Note that the wedge portions 510A to 510D generate a component force for pushing the disc out of the stocker. The force is small, and the disk is hardly pushed out due to the frictional resistance between the disk lower surface and the slot lower surface. Further, according to the apparatus of this embodiment, even if the wedge member generates a force to push out the disc, the disc guide sleeve 6 is provided in the disc spindle hole accommodated in the stocker as described later.
Alternatively, since the disc lock sleeve 62 is inserted, the disc is not pushed out of the stocker (see FIGS. 36 to 38).

<Stocker up / down mechanism> On the other hand, the stocker 10
A stocker 41 is provided below the slot 11.
A stocker up-and-down mechanism 1012 that brings D to a height position POS (1) to POS (4) aligned with the disc transferred by the disc transfer mechanism is arranged. The drive motor 190C is fixed to the main chassis 20 via a motor bracket 49, and the rotation shaft thereof has a worm gear 191C.
Is press-fitted. The gear member 45 is rotatably supported by a shaft 27, and a gear 45A formed on the upper portion thereof.
Meshes with the worm gear 191C. Gear member 45
The gear 45B formed at the lower end of the screw is a screw gear 440.
It engages with a gear 440A formed at the lower end of the screw gear 440 and rotatably drives the screw gear 440 pivotally supported by the shaft 260. The rotation of the screw gear 440 is performed by the gears 46A, 47A, 47B.
Through the gears 441 of the screw gears 441, 442
The screw gears 441 and 442, which are transmitted to the shafts 262 and 263, are transmitted to the screw gears 44A and 442A.
Rotate in conjunction with 0. The screw gears 440 to 442 are nuts 42A, 42 mounted on the base plate 40.
It is screwed to B and 43, and depending on its rotation, stocker 1011
Move up and down.

In order to detect the moving position of the stocker 1011, a stocker position gear 48 is pivotally supported by the shaft 23 on the lower surface of the main chassis 20. The stocker position gear 48 meshes with the gear 46B formed on the lower surface of the gear 46 described above, and is rotationally driven in conjunction with the vertical movement of the stocker. The stocker position gear 48 has a shutter piece 48A on its upper surface for detecting the stocker reference position, and a position P.
Shutter pieces 48B having slits corresponding to OS (1) to POS (4) are formed, and optical sensors 163F, 1F and 1F projecting on the lower surface of the main chassis 20, respectively.
The position is detected by 63G.

The output of the optical sensor-163G is a stocker reference position signal (bar SR) for detecting the reference position of the stocker.
EF), and the stocker 1011 has a disk storage position POS (1) and a disk storage position P above it.
It is in the "H" state when it is brought above a substantially intermediate position with the OS (2). The output of the optical sensor-163F forms a stocker position signal (bar S.POS), and becomes "L" every time the stocker 1011 passes each position POS (1) to POS (4). Therefore, the position POS (1) moves the stocker downward so that the bar S. REF signal is "H"
After becoming S. The remaining positions POS (2) to (4) are detected by the change of "L" of the POS signal, and the remaining positions are POS.
Based on (1), the S. It is detected by pulse counting the POS signal.

<< Disc Position Control Mechanism >> As described above, the disc storage pitch of the stocker is as narrow as 3 mm,
The distance between the reproduction disc and the disc in the stocker that overlaps the top and bottom of the reproduction disc is extremely narrow at 1.8 mm. Under such a circumstance, when the reproducing disc is rotated at a high speed in order to increase the data transfer speed, the atmospheric pressure between the reproducing disc and the discs in the stocker which are vertically opposed to the reproducing disc is generated by the air flow caused by the rotation of the reproducing disc. The disc in the stocker descends and is attracted to the playback disc, causing disc engagement. In order to solve this problem, the drive side disc guide portion 1002 described above is provided with a disc position regulating means 1017 for preventing disc engagement.

As shown in FIG. 3, the disc position restricting means 1017 includes disc catch arms 130 and 13.
1, disk catch pinion 132, leaf spring 133,
It is composed of a return spring 134. The rotating shaft 130B of the upper disc catch arm 130 is inserted into the hole 121D of the upper disc guide 121, and its tip 1
30A is an inclined surface so as to engage only with the biting edge of the disk D1 in the stocker facing the upper surface of the reproduction disk D2 (see FIGS. 64 and 65). Arm 130
The rotary shaft 130B of the upper disk guide 121 extends from the lower surface of the upper disc guide 121, and a catch arm pinion 132 having a pinion gear 132A engageable with the timing belt 107 is inserted and fixed.
The lower disk catch arm 131 is inserted and fixed to the lower end of the hole 122D. The tip 131A of the lower disk catch arm 131 is also the tip 1 of the arm 130.
Similarly to 30A, the inclined surface is formed so as to engage only with the upper edge of the disk D3 in the stocker (FIGS. 64 and 6).
5).

On the other hand, the top surface of the loading plate 104 has a tip 133A engageable with the inner wall of the main chassis 20.
A leaf spring 133 having a pressing portion 133B that presses the peripheral surface of the timing belt 107 facing the catch arm pinion 132 is fixed. The leaf spring 133 is shown in FIG.
0, the loading plate 10 as shown in FIG.
4 is a disc holding position POS. When the position is inside 2 (in the figure, the state of the disc holding position POS.2 is shown), one end 133A thereof does not engage the inner wall of the main chassis 20.
Therefore, the pinion gear 132A and the timing belt 10
7 is a disc catch arm 13 without meshing
0 and 131 are return springs 1 hung on the arm 131
By 34, the vertical surface 130A ′ of the arm 130 is positioned at the retracted position where it engages with the side surface 121C of the upper disk guide 121.

The loading plate 104 is in the open position P.
OS. When it is brought to No. 3, the leaf spring 133 has one end 1
33A engages with the inner surface of the main chassis 20 and deforms, and the side surface of the timing belt 107 is pressed by the pressing portion 133B, and the timing belt 107 is moved to the pinion gear 13
It is displaced to a position where it meshes with 2A (see FIGS. 62 and 63). In this state, when the timing belt 107 is driven to rotate in the counterclockwise direction, the disk catch arms 130 and 131 rotate clockwise, and the side surface of the arm 130 causes the vertical wall 121E of the upper disk guide 121. Is brought to the disc catch position that engages with the arm 1
30 slightly lifts the disk D1 with its tip 130A, and the arm 131 has the disk D1 with its tip 131A.
3 is pushed down slightly to prevent the discs D1 and D3 from engaging with the reproducing disc D2.

The loading plate 104 is closed,
When the engagement between the timing belt 107 and the pinion gear 132A is released, the disc catch arms 130, 13 are released.
1 returns to the retracted position by the return spring 134, but may not return to the retracted position only by the force of the return spring 134 depending on the engagement state of the tips 130A, 131A and the disks D1, D3. Therefore, in the apparatus of this embodiment, the loading plate 104 has the open position POS.
3, the disc catch arms 130 and 131 are forcibly rotated in the clockwise direction by rotating the timing belt 107 in the clockwise direction, and then the loading plate 104 is closed and moved. Let

<Disk Lock Mechanism> FIG. 31 shows the details of the disk lock mechanism 1013 for preventing the movement of the disks stored in the stocker 41. A guide sleeve 6 penetrating through the spindle hole Ds of the disk stored in the stocker is fixed to the lower surface of the top cover-3 via a cushion member 7. The lower end of the guide sleeve 6 extends to a position 0.8 mm above the upper surface Du of the transfer disk D1 and restricts the disk movement in the stocker located above the transfer disk D1 (see FIGS. 36 to 39).

On the other hand, a guide sleeve is mounted on the main chassis 20.
A lock sleeve 62 facing the sleeve 6 is arranged so as to be vertically movable. Lock sleeve for guiding the lock sleeve 62
The sleeve 61 is inserted and fixed in the opening 20C of the main chassis 20 by a flange 61A formed at the lower end thereof. A guide groove 61C extending vertically is formed in a guide portion 61B of the lock base 61, and vertically guides a pin 62A protrudingly formed on the inner surface of the lock sleeve 62.

The lock cam 63 has a pin 62A on its outer peripheral surface.
The spiral cam 63A for guiding the
It is inserted inside B. The lock cam 63 guides the pin 62A by its rotation, the lock position where the lock sleeve 62 is fitted with the guide sleeve 6 (see FIGS. 36 and 38), and the unlock position where the lock sleeve 62 allows the disc transfer. (See FIG. 37 and FIG. 39). A lock release pinion 64 is fixed to the lower end of the cam 63 by a screw 67, and the gear 6 of the lock arm 65 is secured.
It meshes with 5B. The lock arm 65 is axially supported by the shaft 22 on the lower surface of the main chassis 20, and is biased counterclockwise by a spring 66. Further, a projection 65C engageable with the tip 85C of the UD link arm 85 is formed on the lower surface of the lock arm 65 so as to project therefrom.

According to the above disk lock mechanism 1013, the lock sleeve 62 is UD as shown in FIG.
It moves up and down based on the movement of the cams 197 and 82. First,
When the UD cams 197 and 82 are in the position DOWN-2, U
The D-link arm 85 is brought to the rotating position shown in FIG. 32, and the tip 85C thereof is the protrusion 65 of the lock arm 65.
It is located on the right side of C. Therefore, the lock arm 65
Rotates the lock cam 63 (FIG. 31) clockwise through the gear 64 by the urging force of the spring 66, and raises the lock sleeve 62 to the lock position where it is fitted with the guide sleeve 6 (FIGS. 36 and 38). reference). Therefore, the guide sleeve 6 or the lock sleeve 62 is inserted into the spindle hole of the disk D stored in the stocker main body 41, and the movement in the disk radial direction is prohibited.

Next, the UD cams 197 and 82 are moved to the position DOW.
When brought to N-1, the UD link arm 85 is shown in FIG.
3 is rotated counterclockwise to the position shown in FIG.
By 5C, the lock arm 65 is rotated clockwise against the biasing force of the spring 66. Therefore, the lock cam 63 rotates in the clockwise direction, and the spiral cam 63A causes the lock sleeve 62 to move from the lower surface Dl of the transfer disk D1 to 0.
It is lowered to the unlocked position which is 8 mm downward (Fig. 3
7, see FIG. 39). As described above, the guide sleeve 6
Since the lower surface of the transfer disk D1 extends only 0.8 mm above the upper surface Du of the transfer disk D1, the spindle hole Ds of the transfer disk D1 has a guide sleeve 6 and a lock sleeve 62.
Neither of them penetrates and can be freely attached to and detached from the stocker main body 41.

When the UD cams 197 and 82 are brought to the position UP-1, as shown in FIG. 34, the tip 85C of the UD link arm 85 has the projection 6 of the lock arm 65.
Located on the left side of 5C. Therefore, the lock arm 65 again rotates the lock cam 63 clockwise through the gear 64 by the urging force of the spring 66, and raises the lock sleeve 62 to the lock position where the guide sleeve 6 is fitted (Fig. 36, Fig. 36, See FIG. 38). When the UD cams 197 and 82 are brought to the position UP-2, the link arm 85 is moved to the position shown in FIG.
As shown in FIG. 5, the lock sleeve 62 is further rotated counterclockwise, and the lock sleeve 62 is kept in the lock position.

On the other hand, when the UD cams 197 and 82 are moved to the position DOWN-2 without the transfer disk D1 being completely stored in the stocker due to a disk transfer error, the lock sleeve 62 is engaged with the lower surface of the transfer disk D. , It will not be able to rise to the locked position. If the stocker is moved up and down in this state, the transfer disk D1 will be damaged by the guide sleeve 6 or the lock sleeve 62, causing a failure of the apparatus. In order to prevent such troubles, the lock arm 65 has a shutter piece 65A at its end as shown in FIG. 31, and an optical sensor protruding from the lower surface of the main chassis 20.
163H detects whether it is brought to the lock position. The output of the optical sensor-163H forms a disk lock signal (bar D.LOCK), and the lock sleeve 62
Is brought to the locked position, it is in the "L" state.

<< Disk erroneous insertion prevention mechanism >> FIG. 40 shows a disk erroneous insertion prevention mechanism 10 for preventing the erroneous insertion of the disk D.
14 is shown. The shutter 147 is pivotally supported by the shaft 150 on the bent portion 100J of the loading chassis 100. The shutter 147 is a disc insertion opening 1A (see FIG.
A flap 147A for prohibiting the insertion of the disc into the reference portion) is formed downward, and a pinion gear 147B is formed at the right end over an angle of about 180 degrees. Since the lower end of the flap 147A engages with the upper surface of the disk during the load / eject operation of the disk D, felt, compressed urethane or the like is attached to prevent damage to the disk (not shown).

On the other hand, the shutter arm 148 is axially supported by the shaft 102 on the lower surface of the loading chassis 100, and is biased counterclockwise by the spring 149. A rack 148A that meshes with the pinion gear 147B of the shutter 147 is formed on one end and the lower surface of the arm 148, and the side surface 148B is formed on the side surface of the pin 129 (see FIG. 2) fixed to the loading plate 104. Facing each other.

According to the disk erroneous insertion prevention mechanism 1014 described above, the shutter 147 is locked as shown in FIG.
In response to the positions of the ding plates 104, 140, their open / close positions are controlled. Loading plate 104,
140 is a disk receiving position POS. 1 (see FIG. 10), the arm 148 is rotated clockwise by being pressed by the pin 129 of the loading plate 104 so that the shutter 147 is opened. Rotate toward the outside of the device. Therefore, the loading play
104 and 140 are disc receiving positions POS. When set to 1, the shutter 147 allows the disc to be inserted into the disc insertion opening 1A.

When the loading plates 104 and 140 are spread by inserting the disk, the arm 148 is moved by the urging force of the spring 149.
It rotates counterclockwise with the movement of (pin 129) and rotates the shutter 147 toward the inside of the apparatus. When the loading plates 104 and 140 are spread to a certain extent, the shutter 147 is in a half-open state because its flap 147A engages with the upper surface of the disk D, and until the disk is transferred into the apparatus. , Slide on the top of the disc. When the disc is transferred into the device, the shutter 14
7 is closed by the urging force of the spring 149, and the stopper piece 147C formed on the upper surface of the spring 7 is mounted on the loading chassis 1.
00 is brought to a closed position which engages the inner surface of the bent portion 100K. Therefore, thereafter, the shutter 147 cannot rotate inside the apparatus because the stopper piece 147C engages with the bent portion 100K, and prohibits the disc insertion into the disc insertion opening 1A.

On the other hand, since the shutter 147 can be freely rotated to the outside of the apparatus, it does not prohibit the disc ejection inside the apparatus regardless of the position of the loading plate. The disc is transferred to the front of the device and the periphery of the disc is flapped.
7A, the shutter 147 is pushed open and then slides on the upper surface of the disk. When the disc is ejected,
Ding plates 104 and 140 move close to each other,
When the pin 129 of the arm 104 is engaged with the side surface 148B of the arm 148, the arm 148 is moved to the loading plate 10.
4 is rotated clockwise in association with the movement of the shutter 4, and the shutter 147
Is separated from the upper surface of the disc. When the disc is brought to the eject position P5 shown in FIG. 14, the loading plates 104 and 140 move to the disc receiving position PO.
S. 1, the arm 148 opens the shutter 147 to a position where the disc insertion into the disc insertion opening 1A is permitted.

Further, a shutter piece 147D is formed above the shutter 147, and the optical sensor-163B protruding below the loading chassis 100 allows the shutter 1 to move.
The closure of 47 is detected. The output of the optical sensor-163B forms a shutter close signal (S.CLOSE),
When the shutter 147 is closed, it is in the “H” state.

According to the apparatus of this embodiment, the disc reproducing position P
3, the stock position P4 is S. The output of the optical sensor-163C (FIG. 9) indicating the above-mentioned disk transfer distance based on the "H" change of the CLOSE signal (bar L.PULS).
It is detected by pulse counting E). S.
The CLOSE signal changes to "L" when the disc D is inserted up to the reference position P2 shown in FIG. 12, and the reproduction position P3.
Is the bar from the reference position. The PULSE signal is detected by counting 7 pulses, and the stock position P4 is detected by counting 167 pulses.

<Door Opening / Closing Mechanism> FIG. 41 shows a door opening / closing mechanism 1015 capable of closing the disc insertion opening 1A. The door 11 has a reinforcing plate 12 fixed to the inner surface thereof, and shafts 15A and 15B for closing the disc insertion opening 1A.
It is attached to the front panel 1 so as to be openable and closable. The upper end 11C of the door 11 is inclined so that its height decreases from the left and right sides toward the center in order to prevent damage to the disc. A spring hooking portion 11A is formed on the inner surface and right end of the door 11, penetrates the hole 1B of the front panel 1, and a spring 13 described later is hooked. Inside the door,
A shutter piece 11B which can penetrate the hole 1C of the front panel 1 is formed at the left end, and the closing of the door 11 is detected by an optical sensor 163I fixed to the loading chassis 100. The output of the optical sensor-163I forms a door close signal (D.CLOSE signal), and the door 11
When it is closed, it is in the "H" state. Further, a disc fall prevention member 8 made of felt with slits 8A cut is attached to the inner surface of the front panel 1, and the disc fall prevention member 8 holds the disc brought to the eject position by the slit 8A, The disc is prevented from coming off from the insertion slot 1A.

On the other hand, the spring 13 is composed of two coil spring portions 13 'and 13 "connected by a connecting portion 13C, and is pivotally supported inside the front panel 1 by a shaft 16. In the direction of closing the door 11. The other end of the coil spring portion 13 ″ is inserted into a hole formed in the spring hooking portion 11A so as to be biased, and one end 13C of the coil spring portion 13 ′ is engaged with the inner surface of the front panel 1. The connecting portion 13C faces the pressing portion 82D formed at the front end of the UD cam 82 described above, and the UD cam 82 is at the position DOWN as will be described later.
When it moves to the front of the device from -1, it engages with the pressing portion 82D and is pressed in the direction to open the door 11.

According to the door opening / closing mechanism 1015 described above, the opening / closing position of the door 11 is controlled in response to the moving position of the UD cam 82 as shown in FIG. That is, when the UD cam 82 is at the position DOWN-2, the connecting portion 13C of the spring 13 is pressed in the door opening direction by the pressing portion 82D of the UD cam 82, and the door 1 is moved through the coil spring portion 131.
1 is opened toward the outside of the device (FIG. 42). Therefore,
Even if the door 11 is forcibly closed by the operator, the coil spring portion 131 is elastically deformed so that the door 11 can rotate in the closing direction and is not damaged. On the other hand, the UD cam 82 is shown in FIGS.
When it is brought to the positions DOWN-1 to UP-2 as shown in FIG. 5, the pressing portion 82D separates from the connecting portion 13C of the spring 13, and the spring 13 urges the door 11 to move the door 11 to the disc insertion opening 1A. Rotate to the closed position.

<< Drive Control Circuit >> FIG. 48 shows the drive control circuit 1016 of the apparatus of this embodiment described above. The system controller 300 includes a ROM, a RAM, an interface circuit and the like, and is composed of one or a plurality of microprocessors. The controller 300 has EJECT keys 1 to 1 for ejecting the disks D housed in the slits 41A to 41D of the stocker 41, respectively.
A computer device 303 including a mode key 301 including an EJECT key-4 and an interface circuit 302.
49 to 60, which will be described later, according to the flow charts of FIGS. 49 to 60, the operation of the mode key and the computer device 3 are performed.
It controls the operation of the mechanism corresponding to the read command from 03.

The controller 300 outputs the S.D. signals output from the above-mentioned optical sensors-163A to 163C. CLOSE signal, IN signal, bar L. Input the PULSE signal respectively,
Based on these signals, a FRONT signal and a REAR signal for controlling the motor drive circuit 304 are output to control the disk transfer position. The motor drive circuit 304 is a drive motor 190 of the timing pulley drive mechanism 1004 (see FIG. 9).
A driver circuit that outputs a predetermined drive voltage to A, and F
When the RONT signal becomes "H", the timing pulley 106
Is output in the clockwise direction, and when the REAR signal becomes "H", the drive voltage in the opposite direction is output.
Further, the motor drive circuit 304 shorts out the output when both signals become "H" and electromagnetically brakes the motor 190A, and outputs both when both signals become "L". Is opened.

The controller 300 is an optical sensor.
163D, 163E output from the bar P. PULSE
Signal, bar P. The REF signal is inputted and the output of the motor drive circuit 305 is controlled based on these signals. UP signal and P.P. Outputs the DOWN signal, and the UD cams 197 and 82
Control the position of. The motor drive circuit 305 is a driver circuit that outputs a predetermined drive voltage to the drive motor 190B of the optical mechanism vertical movement mechanism 1008 (FIG. 16). When the UP signal becomes "H", a drive voltage for moving the UD cam 197 in the up direction (front side of the apparatus) is output, D
When the OWN signal becomes "H", the drive voltage in the opposite direction is output. Further, the motor drive circuit 305 shorts out the output when both signals become "H" and outputs the motor 190B.
Is electromagnetically braked, and when both signals become "L", the output is opened.

The controller 300 is an optical sensor.
163F, 163G output the bar S. REF signal, bar S. The POS signal is input and the output of the motor drive circuit 306 is controlled based on these signals. UP signal and ST. The DOWN signal is output to control the vertical movement of the stocker 1011. The motor drive circuit 306 is a driver circuit that outputs a predetermined drive voltage to the drive motor 190C of the stocker lifting mechanism 1012 (FIG. 26). U
When the P signal becomes "H", a drive voltage for raising the stocker 1011 is output, and ST. DOWN signal is "H"
Then, the drive voltage in the opposite direction is output. In addition,
The motor drive circuit 306 shorts out the output when both signals become "H" and applies an electromagnetic brake to the motor 190C, and opens the output when both signals become "L". State. The controller 300 is an optical sensor-1.
63H, 163I output from the bar D. LOCK signal, D. Input CLOSE signal and lock sleeve 62
And the state of the door 11 is detected. In addition, controller 3
00 is connected to a backup power supply (not shown) for holding flags such as the stocker position stored in the RAM and the presence / absence of a disk when the power is turned off.

On the other hand, the read signal read by the optical pickup 210 is supplied to the signal processing circuit 307 via the RF amplifier 309, and EFM demodulation, deinterleave,
After error correction is performed, the interface circuit 30
It is supplied to the computer device 303 externally connected via the No. 2. The servo circuit 308 is an optical pickup 210.
Based on the servo error signal obtained from the focus servo and tracking servo of the optical pickup 210,
The feed servo control is performed so that the optical beam follows the information track of the disc D. The signal processing circuit 307 and the servo circuit 308 are connected to the controller 300,
Control is performed according to the operation mode.

<Description of Operation> The operation of the above-described apparatus of this embodiment will be described below with reference to the flowcharts of FIGS. 49 to 66. In the flow chart, "n" indicates the stocker position and is set in response to the stocker position. D. FLAG (n) is each slot 41A of the stocker
27 is a flag showing the presence / absence of a disk of 41D (see FIG. 26). For example, D. When FLAG (1) is set to "1", a disk is stored in the slot 41A.

On the other hand, M. FLAG is a flag indicating the operating state of the device. M. When FLAG is set to "READY", the device will load the loading plate 10
4, 142 are disc receiving positions POS. 1 and the door 11 is open and the disc is in a receiving state. M.
When FLAG is set to "CLOSE", the apparatus loads the loading plates 104 and 142 at the disk receiving position POS. However, the door 11 is in a closed state. M. FLAG is "PLAY"
When set to, the device is in the playing state of playing the disc, and when set to "STAND-BY", the device clamps the disc on the optical mechanism but stops playing the disc. It is in standby mode. In addition, M. When FLAG is set to "STOCK", the device will move the disc to the stock position,
The loading plates 104 and 142 are in the open position PO.
S. It is in a stopped state brought to No. 3.

<Main Flow> When the power is turned on, the controller 300 performs a predetermined initialization process, and then proceeds to the main routine shown in FIG. Signal "L" change (disc insertion detection), operation of EJECT keys 1 to 4,
Read command output from computer device 303, read end, D.I. "H" change of CLOSE signal (door 1
(1) Forced closure detection) is repeatedly monitored.

<Disc Loading Operation> When the disc D is inserted into the disc insertion opening 1A in the disc receiving state, the loading plates 104 and 140 are pushed apart as the disc is inserted. When the disc D is inserted up to the position P1 shown, the optical sensor-1
The output (IN) of 63B changes to "L". Then, the controller 300 proceeds from step S1 to the flow chart JOB LOAD shown in FIG. 50, and thereafter starts the loading control for transferring the inserted disc to the stock position P4. On the other hand, as the plate 104 is opened, the shutter lever-148 rotates counterclockwise,
The shutter-147 is rotated toward the inside of the device. Therefore, when the disc is inserted to a certain extent, the flap 147 slides on the upper face of the disc D until the flap 147A engages with the upper face of the disc and thereafter the disc is transferred into the apparatus.

Here, it is conceivable that the operator may forcibly open the closed door 11 to insert the disc and the IN signal may change to "L". In this case, the door 11
Will engage the lower surface of the disk by the biasing force of the spring 13 until the disk is transferred into the apparatus. As described above, the upper end 11C of the door 11 is formed to be inclined so that its height becomes lower from the left and right sides toward the center, and it should engage only with the edge of the lower surface of the disc and not damage the recording surface of the disc. However, there is a problem that the operator easily inserts the disc while pressing it downward, and the warp of the disc causes the disc recording surface and the upper end of the door to engage with each other to damage the disc recording surface.

To solve this problem, the controller 3
00 is first set in step S20. FLAG is "CLOS
If it is "CLOSE", the UD cams 197, 82 are moved from the position DOWN-1 to the DOWN-2 in steps S21 to S27, and the door 11 is checked.
Release.

First, the controller 300 operates in step S2.
P.1. The UP signal is set to "H", and at step S22
P. Wait for "H" change of REF signal. P. By setting the UP signal to “H”, the optical mechanical vertical movement mechanism 1008
Drive motor 190B (FIG. 16) is driven to rotate and UD
The cams 197 and 82 are moved in the UP position direction. Bar
P. When the REF signal changes to "H", the controller 30
0 in step S23. The UP signal is set to "L", and the P. The DWN signal is set to "H", and at step S24 the flag P.P. Wait for the "L" change of the REF signal. Therefore, the drive mechanism 190B of the optical mechanical up-and-down mechanism 1008 is reversely driven to move the UD cams 197 and 82 toward the DOWN position. The reverse movement of the UD cam causes the bar P.P. When the REF signal changes to "L", the controller 300 makes a step S2.
5 at P. The counting of the PULSE signal is started, and the process waits for the count value to reach "32" in step S103.
After moving the UD cam in the opposite direction and bringing it to the reference position, it was moved to the position DOWN-2 when the UD cam was repeatedly moved between the positions DOWN-2 and DOWN-1, Bar P. This is because the UD cam is misaligned due to a count error of the PULSE signal.

When the count value becomes "32", the controller 300 determines that the UD cam has been brought to the position DOWN-2, and the P.D. UP signal and P.P.
The DWN signal is set to "H" for 50 msec, and the motor 19
An electromagnetic brake is applied to 0B to stop the movement of the UD cam. In this way, when the UD cam is brought to the position DOWN-2, the door 11 is opened as described above (see FIG. 42).

Whether the above-mentioned step S27 is completed,
M. When FLAG is not "CLOSE" (usually "EJ"
ECT "), the controller 300 proceeds to step S28 in FIG. 51, sets the REAR signal to" H ", and then loops S.CLO within 3 seconds in the loop of steps S29 and S30.
Wait for the SE signal to change to "H". When the REAR signal is set to "H", the disc transport mechanism 1001
Drive motor 190A (FIG. 9) is driven to rotate, and the timing belt 107 is rotated counterclockwise to move the inserted disc D into the friction belt 14.
It rolls clockwise with respect to 2, and is transferred toward the rear of the device. S. within 3 seconds. If the CLOSE signal does not become "H", the controller 300 determines that the disk having the disk transfer mechanism cannot be transferred into the apparatus, sets the REAR signal to "L" in step S52, and suspends the loading control. Then, the process returns to the main routine of FIG.

When the disc is transferred normally and is brought to the reference position P2 shown in FIG. 12,
Shutter-147 begins to close and S. The CLOSE signal changes to "H". Then, the controller 300 determines in step S31 that the disc presence flag D. FLAG (n)
Is set to "1", and then FRO is performed in step S32.
The NT signal and the REAR signal are set to "H" for 50 msec to apply an electromagnetic brake to the motor 190A to temporarily stop the transfer of the disk, and the UD is performed in steps S33 to S36.
Move the cams 197 and 82 from the position DOWN-2 to the DOWN-1.
And the door 11 is closed.

That is, the controller 300 operates in step S3.
P.3. After the UP signal is set to "H", the counting of the output (the P.PULSE signal) of the optical sensor-163D is started in step S34, and the count value becomes "21" in step S28. P. When the UP signal is set to "H", the optical mechanical up-and-down mechanism 1008 is driven.
190B (FIG. 16) is driven to rotate, and the UD cam 19
7 and 82 are moved in the UP position direction. When the count value reaches "21", the controller 300 determines that the UD cam has been brought to the position DOWN-1, and step S3
6 by P.6. UP signal and P.P. DWN signal 50msec
During this time, the motor 190B is set to "H" and an electromagnetic brake is applied to stop the movement of the UD cam. UD cam is in position DO
When brought to WN-1, door 1
1 is closed (see FIG. 43), and the lock sleeve 6
2 is brought to the unlocked position (see FIGS. 33 and 37), and the disk can be transferred to the stocker.

In step S37, the controller 300 sets the FRONT signal to "H" to restart the disk transfer, and in step S38, the S. CLOSE signal is "L"
Wait for it to change. When the FRONT signal is set to "H", the disc transfer mechanism 1001 rotationally moves the timing belt 14 in the clockwise direction, and the inserted disc D is reversely moved toward the front of the device. When the disc D is pressed, the shutter 147 starts to open toward the outside of the device,
S. When the CLOSE signal changes to "L", the control
The la 300 returns the FRONT signal to "L" and the REAR signal to "H" in step S39, and again in step S40. Wait for the "H" change of the CLOSE signal. When the REAR signal is set to “H”, the disc transfer mechanism 1001 rotationally moves the timing belt 14 counterclockwise, and reversely moves the inserted disc toward the rear of the device.

When the disc D is moved in the reverse direction, the shutter-
120 began to close again and S. CLOSE signal is "H"
, The controller 300 determines in step S41 the output of the optical sensor-163C (bar L.PULS).
The pulse counting of E) is started, and the step S42 waits until the count value becomes "137". The disk is moved in reverse so that the disk overrun generated when the disk transfer is temporarily stopped (step S32) does not affect the count value to the stock position. . When the count value reaches "137", the controller 300 determines that the disc D has been brought to the vicinity of the stock position P4, and REA is performed in step S43.
The R signal is pulse-changed at a duty of 30% to reduce the disc transfer speed, and the step S44 waits until the count value rises to "167". When the count value reaches "167", the controller 300 determines that the disc has been brought to the stock position P4, and the step S
45 FRONT signal and REAR signal by 50 mse
It is set to "H" during the period c, and an electromagnetic brake is applied to the motor 190A to stop the disk transfer.

Subsequently, the controller 300 moves the UD cams 197 and 82 to the position DO at steps S46 to S50.
WN-1 to position UP-2 and loading plates 104, 140 open position POS. Spread to 3 (see Figure 13). That is, the controller 300 sets the P. The UP signal is set to "H" and step S47
To P.P. Wait for the REF signal to change to "H".
P. When the UP signal is set to "H", the drive mechanism 190B (FIG. 16) of the optical mechanical up-and-down mechanism 1008 is rotationally driven, and the UD cams 197 and 82 are moved in the UP position direction. Bar P. When the REF signal changes to "H", the controller 300 causes the P.P. PUL
The counting of the SE signal is started, and the step S49 waits for the count value to become "47". Count value is "47"
Then, in the controller 300, the UD cam is in the position UP-
It is determined that the data has been brought to P.2, and in step S50, the P.
UP signal and P.P. The DWN signal is set to "H" for 50 msec, the motor 190B is electromagnetically braked, and the movement of the UD cam is stopped. UD cams 197 and 82 are in position UP-
When brought to No. 2, loading plate 104, 1
40 by the loading plate cam 186 to the open position POS. The belts 107 and 142 are pushed apart to 3 and separate the belts 107 and 142 from the peripheral edge De of the transfer disk (see FIG. 25).

As described above, the controller 300 finishes the disc loading control, and finally, in step S51. Set FLAG to "STOCK" and return to the main routine shown in FIG.

<< Operation for EJECT key >> Next, EJEC
The operation when T key-1 to EJECT key-4 is operated will be described. First, the general operation of the apparatus for the EJECT key will be described. EJE having the same number as the current stocker position
When the CT key is operated, the controller 300 opens the door and brings the disc in the stock position or the reproduction position to the eject position. If there is no disc corresponding to the EJECT key number, the controller is EJE.
Only the door 11 is opened and closed in response to the operation of the CT key. On the other hand, EJEC with a number different from the current stocker position
When the T key is operated, the controller 300 moves the stocker to the corresponding position, opens the door, and brings the disc in the stocker to the eject position. Also, EJ
If there is no disc that supports the ECT key,
After moving the stocker to the corresponding position, La opens the door and puts it in the disk receiving state.

<< Operation for EJECT key in stock state >> First, in the stock state, EJECT key
The operation when is operated will be described. EJECT -1
52 to 5 when any one of ˜EJECT key-4 is operated, the controller 300 sets the constant m to “1” to “4” in corresponding steps S9 to S12, respectively.
Proceed to the flow chart JOB EJECT shown in FIG. M. When FLAG is set to "STOCK", the controller 300 performs steps S70 to S71.
Then, it is checked whether the values of m and n are the same, and it is determined whether the EJECT key having the same number as the current stocker position has been operated.

When m and n are the same, controller 300
UD cam 1 through steps S90 to S94 of FIG.
Move 97, 82 from position UP-2 to DOWN-1. That is, the controller 300 sets the P.
The DWN signal is set to "H", and at step S91
P. Wait for the "L" change of the REF signal. P. When the DWN signal becomes “L”, the optical mechanism vertical movement mechanism 1008 is driven.
190B (FIG. 16) is driven to rotate, and the UD cam 19
7 and 82 are moved toward the DOWN position. Bar P. R
When the EF signal changes to "L", the controller 300 causes the flag P.P. The count of the PULSE signal is started, and the process waits for the count value to become "11" in step S93. When the count value reaches "11", the controller 300 determines that the UD cam has been brought to the position DOWN-1, and the P.P. UP signal and P.P.
The DWN signal is set to "H" for 50 msec, and the motor 19
An electromagnetic brake is applied to 0B to stop the movement of the UD cam. When the UD cam is brought to the position DOWN-1, the loading plates 104 and 140 are moved by the urging force of the spring 160 to the disc holding position POS. It is closed to 2 and holds the disc in the stocker, and the lock sleeve 62
Is brought to the unlocked position (see FIGS. 33 and 37), and the held disc can be pulled out from the stocker.

Next, the controller 300 makes a step S9.
The disks in the stocker are brought to the eject position by steps 5 to S107. First, the controller 300 sets the FRONT signal to "H" in step S95, and then in step S96.
S. Wait for the CLOSE signal to change to "L". FR
When the ONT signal is set to "H", the drive motor 190A (FIG. 9) of the disk transport mechanism 1001 is rotationally driven, and the timing belt 107 is rotationally moved counterclockwise to insert the disk D. Is rotated counterclockwise with respect to the friction belt 142, and is transferred toward the front of the device. When the disc is brought to the position P2 shown in FIG. 12, the shutter-147 starts to open due to the pressing of the disc, and the S.S. CLOSE signal is "L"
Changes to Then, the controller 300 makes a step S.
FRONT signal and REAR signal 50mse by 97
During the period of "c", the motor 190A is set to "H" and an electromagnetic brake is applied to temporarily stop the transfer of the disk, so that the disk is moved to the door 1
1 to prevent engagement.

Subsequently, the controller 300 moves the UD cam from the position DOWN-1 to the DOWN-2 and opens the door 11 by the same steps S98 to S104 as the above-mentioned steps S20 to S27 (FIG. 50). The details are omitted because they overlap. Controller 3
In step S105, the FRONT signal is set to "H" to restart the disk transfer, and in step S106, it waits for the IN signal to change to "H". FRONT signal is "H"
Then, the disk transfer mechanism 1001 moves the disk toward the front of the apparatus while rotating the disk counterclockwise.
Depending on the amount of disc protrusion from the disc insertion slot 1A,
Ding plates 104 and 140 gradually begin to close,
When the disc is ejected to the position P1 shown in FIG. 11, the IN signal changes to "H". Then, the controller 300 determines that the disc has been brought to the substantially eject position, and in step S107, the FRONT signal and the REAR signal are set to "H" for 50 msec and the motor 1
An electromagnetic brake is applied to 90A to stop the disk transfer. The disk brought to the position P1 overruns slightly due to its inertia, and the loading plate 104,
142 is the disc receiving position POS. It almost stops at the eject position P5 that closes to 1.

As described above, the controller 300 ends the disc eject control, and the D.D. FLAG (n) is set to "0" (clear), and step S
109 M. Set FLAG to "READY",
Returning to the main routine shown in FIG.

On the other hand, when the values of m and n are not the same in step S71 of FIG. 52, the controller 300 determines in step S72 the output of the optical sensor-163H (bar D.
First, it is checked that LOCK) is "L" (the lock sleeve 62 is brought to the lock position).
Bar D. When the LOCK signal confirms "L", the controller 300 determines the stocker reference position signal (bar S.REF) and the stocker position signal (bar SP) in step S73.
OS) is monitored and stocker 1011 is ejected.
The position POS (m) designated by, for example, when the eject key-4 is operated, the stocker is moved to the position POS (m).
Move to (4). When the stocker is brought to the designated position, the controller 300 sets the constant n indicating the current position of the stocker to the value of m in step S74, and the D.D. It is checked that FLAG (n) is "1", that is, there is a transfer disk. When it is "1", the controller 300 performs the step S shown in FIG.
Proceeding to 90, the disc eject control is started.

On the other hand, D.I. When FLAG (n) is "0" (no disc), the controller 300 proceeds to step S76 and starts disc acceptance control to put the device into the disc acceptance state. First, in step S76, the controller sets P. Set the DWN signal to "H", and at step S77,
P. Wait for the REF signal to change to "L". P. DWN
When the signal becomes "H", the drive motor 190B of the optical mechanical up-and-down mechanism 1008 is rotationally driven, and the UD cams 197, 8 are provided.
2 is moved toward the DOWN position. By moving the UD cam, the bar P. When the REF signal changes to "L", the controller 300 determines the P.P. Counting of the PULSE signal is started, and the process waits for the count value to reach "32" in step S79. When the count value reaches “32”, the controller 300 moves the UD cam to the position DOWN-2.
It is determined that the P.P. U
P signal and P.P. The DWN signal is set to "H" for 50 msec, the motor 190B is electromagnetically braked, and the movement of the UD cam is stopped. When the UD cam is brought to the position DOWN-2, the loading plates 104 and 140 are moved by the urging force of the spring 160 to the disc receiving position POS. The door 11 is opened by closing the door 1 to open the shutter-147.

As described above, the controller 300 completes the disc receiving control, and the M.D. FLA
Set G to "EJECT" and return to the main routine shown in FIG.

<< Disk Lock Miss / Reload Operation >> On the other hand, in step S72 of FIG. LOCK is “H”
When the lock sleeve 62 does not rise to the lock position, the controller 300 proceeds to step S110 in FIG. 54, and thereafter moves the disc D, which has been displaced, to the reference position P2 (see FIG. 12). , And reload control to bring the stock position P4 again. First, the controller 300 checks the number of reloads in step S110, and then steps S111 to S11 which are the same steps as steps S90 to S94 (see FIG. 53) described above.
5, the UD cams 197 and 82 are moved from the position UP-2 to the DO.
By moving to WN-1, loading play
The disk holding position POS. 2 to move the lock sleeve 62 to the unlock position. Note that the details are omitted because they overlap with the above description.

Subsequently, in steps S116 to S124, the controller 300 temporarily moves the disc, which has been displaced, to the reference position P2 and then brings it to the stock position P4 again. First, the controller 300 sets the FRONT signal to "H" in step S116, and the S.R. Wait for the CLOSE signal to change to "L". By setting the FRONT signal to "H",
The drive motor 190A (FIG. 9) of the disk transfer mechanism 1001 is rotationally driven, and the timing belt 107 is rotationally moved in the counterclockwise direction to roll the disk counterclockwise with respect to the friction belt 142 to the front side of the apparatus. Transfer to. When the disc is brought to the reference position P2 shown in FIG. 12, the shutter-147 starts to open due to the pressing of the disc, and the S.S. The CLOSE signal changes to "L". Then, the controller 300 sets the FRONT signal to "L" and the REAR signal to "H" in step S118, and in step S119, the S.S. Wait for the CLOSE signal to change to "H".

The shutter 14 is moved by the reverse movement of the disk D.
7 began to close and S. When the CLOSE signal changes to "H", the controller 300 causes the L.L. Start counting the PULSE signal, and step S
At 121, the process waits until the count value reaches "137". When the count value reaches "137", the controller 300 determines that the disk has been brought near the stock position, and in step S122, changes the pulse of the REAR signal with a 30% duty to reduce the disk transfer speed. The process waits until the count value reaches "167" in step S123. When the count value reaches "167", controller 3
00 determines that the disc has been brought to the stock position, and the FRONT signal and the REAR are sent in step S124.
The signal is set to "H" for 50 msec and the motor 190A
Apply an electromagnetic brake to the disc to stop the disc transfer.

Next, the controller 300 executes the steps S125 to S129, which are the same steps as the steps S46 to S50 (see FIG. 51) described above, to the UD cam 19.
7, 82 are moved from the position DOWN-1 to the position UP-2 to move the loading plates 107, 142 to the open position POS. 3 (see FIG. 13), and the lock sleeve 62 is raised. Note that step S12
Details of 5 to S129 are omitted because they overlap.

As described above, the controller 300 is restarted.
Control is terminated, the process returns to step S72 (FIG. 52) described above, and the D.D. Confirm that the LOCK signal is "L", and if it becomes "L", set the stocker to the specified position POS.
In step (m), the disc eject control or the disc receiving control is performed in response to the presence or absence of the disc.

<< Disk Lock Miss Eject Operation >>
On the other hand, even if the above-mentioned reload control is repeated three times,
D. If the LOCK signal does not become "L",
The la 300 is shown in FIG.
3, the disc eject control is performed.

<< Eject key in standby state
Corresponding operation >> Next, the operation when the eject key is operated in the standby state will be described. When any one of eject key-1 to eject key-4 is operated in the standby state, the controller 300 sets the constant m to "1" through steps S9 to S12 (FIG. 49) corresponding thereto.
Set to "4", steps S70 (FIG. 52), S13
0 (FIG. 55), the process proceeds to step S131, where m and n
Check if the values of are the same.

In the case of the same, the controller 300 first performs the disc catcher operation in steps S132 to S136.
The frames 130 and 131 are rotated clockwise to the retracted position (disc uncatch position) shown in FIG. That is, the controller 300 causes the FRON in step S132.
The T signal is set to "H", and at step S133, the L.L. PU
Start counting the LSE signal, and perform steps S134 and S
In the loop of 135, the count value becomes "7",
L. Wait for the PULSE signal to stop.

In the standby state, the loading plate is in the open position POS. Because it was brought in 3,
The timing belt 107 is meshed with the pinion gear 132A by the pressing of the spring 134. Therefore, FRONT
When the signal becomes "H", the disc transfer mechanism 1001 rotates the timing belt 107 in the clockwise direction to rotate the disc catch arms 130 and 131 in the clockwise direction. When the count value becomes "7" or the vertical wall 130C of the disc catch arm 130 is engaged with the side surface 121C of the upper disc guide 121, the L.L. If the PULSE signal does not come, the controller 30
0 determines that the disc catch arms 130 and 131 have rotated to the retracted position, and F is determined in step S136.
"H" between RONT signal and REAR signal for 50msec
Then, the motor 190A is electromagnetically braked to stop the movement of the timing belt 107.

Subsequently, the controller 300 moves the UD cams 197 and 82 from the position UP-2 to the DOWN-2 by the same steps S137 to S141 as the steps S76 to S80 (FIG. 52) described above, and the optical mechanism. 10
06 is lowered to the down position, and the door 11 is opened. Then, the controller 300 performs the same step S14 as the above-described steps S105 to S107 (FIG. 53).
2 to S144, the disk is brought to the eject position P5.

As described above, the controller 300 ends the disc eject control from the standby state, and the D.D. FLAG (n) is reset, and the M.F. Set FLAG to "READY" and return to the main routine shown in FIG.

On the other hand, in step S131 described above, m and n
If the values of are not the same, the controller 300 is shown in FIG.
6. The process proceeds to step S150 shown in FIG. 6, and (1) by steps S150 to S154 which are the same as steps S132 to S136 (FIG. 55) described above, the disc catch arms 130 and 131 are rotated to the retracted position, and (2). By the steps S155 to S159 which are the same steps as the steps S111 to S115 (FIG. 54), the UD cam 19 is
Move 7, 82 from position UP-2 to DOWN-1,
(3) By steps S160 to S168 which are the same steps as steps S116 to S124 (FIG. 54), the disc D at the reproduction position P3 is transferred to the stock position P4,
(4) By steps S169 to S173 which are the same steps as steps S125 to S129 (FIG. 54), U
The D cams 197 and 82 are moved from the position DOWN-1 to UP-2, and the process returns to step S72 in FIG. L
After confirming that the OCK signal is "L", the stocker is moved to the designated position POS (m), and the disc eject control or the disc receiving control is performed in response to the presence or absence of the disc.

<< Eject Key in Eject State
Corresponding Operation >> Next, the operation when the eject key is operated in the eject state will be described. When any of eject key-1 to eject key-4 is operated in the eject state, the controller 300 sets the constant m to "1" by steps S9 to S12 (FIG. 49) corresponding thereto.
Set to "4", steps S70 (FIG. 52), S13
0 (FIG. 55), the process proceeds to step S181 via step S180 in FIG.

First, the controller 300 performs steps S181 to S1 which are the same as steps S33 to S36 described above.
The UD cams 197 and 82 are brought to the position DOWN-2 by 84.
To DOWN-1 and the door 11 is closed.
Then, the controller 300 checks in step S185 whether the values of m and n are the same, and if they are the same, the controller 300 determines in step S186. Set FLAG to "CLOSE" and return to the main routine shown in FIG.

On the other hand, when the values of m and n are not the same, the controller 300 determines the D.D. CLOSE
Wait for the signal to go "H". This step is provided to check whether or not the disc is left at the eject position.In the state where the disc is left at the eject position, the loading plate is released to the open position by the step described later. POS. This is because when the disc is opened to 3, the disc at the eject position becomes unstable, and the disc left in the eject position by other discs in the stocker is pushed out of the apparatus later, which may damage the disc. .

Since the UD cam is moved to the position DOWN-1 in steps S181 to S184, the door 11 is closed if there is no disc at the eject position. Therefore, D. When the CLOSE signal is "H", the controller 300 determines that there is no disk at the eject position, and moves the UD cam to the DOWN position by the same steps S188 to S192 as the above steps S46 to S50 (FIG. 51).
-1 to UP-2 and the loading plate is moved to the open position POS. 3 is released and the process returns to step S72 of FIG. LOCK signal is "L"
After confirming that the stocker is in the specified position P
The disk is moved to the OS (m), and disk eject control or disk acceptance control is performed in response to the presence or absence of the disk.

On the other hand, when the disc is in the eject position, the door 11 is not closed because it engages with the lower surface of the disc. Therefore, D. When the CLOSE signal is "L", the controller 300 determines that the disc is at the eject position, the disc is taken out, and the D. It continues to wait for the CLOSE signal to go "H".

<< Eject Key Corresponding Operation in Closed State >> Next, the operation when the eject key is operated in the closed state will be described. When any one of eject key-1 to eject key-4 is operated in the close state, the controller 300 causes the corresponding step S.
9 to S12 (FIG. 49), the constant m is set to “1” to “4”, and steps S70 (FIG. 52) and S130 (FIG. 5) are set.
5), step S180 (FIG. 57), and step S200 of FIG.

First, the controller 300 checks whether or not the values of m and n are the same, and when they are the same, the same step S2 as the steps S21 to S27 (FIG. 50) described above.
UD cams 197 and 82 to position D by 02-S208
The door is opened by moving it from OWN-1 to DOWN-2. FLAG to "READ
Set to Y "and return to the main routine shown in FIG.

On the other hand, when the values of m and n are not the same, the controller 300 executes the D.D.S. CLO
After confirming the SE signal "H", move the UD cam to the position DOW.
N-1 to UP-2 to move the loading plate to the open position POS. 3 is opened and moved to the position shown in FIG.
2 returns to step S72, and if After confirming that the LOCK signal is "L", the stocker is moved to the designated position POS (m), and the disc eject control or the disc receiving control is performed in response to the presence or absence of the disc.

<< Read Command Corresponding Operation in Stock State >> Next, in the stock state, the read command output from the externally connected computer device 303 (FIG. 48).
When the command is detected, the controller 300 causes the controller 300 of FIG.
Flowchart J shown in FIG. 59 from step S6 of FIG.
Proceed to OB PLAY. Note that the computer device 303
Together with the read command, the disk number "m" instructed to be reproduced and the data necessary for reading the file such as the read file are transmitted to the disk changer.

First, the controller 300 operates in step S2.
20 by D. By checking whether FLAG (m) is "1", it is checked whether there is a disc instructed to be reproduced. When there is no disc, the controller 300 ignores this read command and returns to the main routine of FIG. Although not shown, it is desirable to transmit to the computer device 303 that there is no disc, and display a warning on the display connected to the computer device 303 that there is no disc for which reproduction is instructed. If the disc presence / absence information can be sequentially transmitted to the computer device 303, the disc presence / absence is detected by software (device driver) installed on the computer device 303 side in order to control this disc changer. It is also possible to make a judgment and display a warning that there is no disc on the display, or to output the read command to the disc changer only when there is a disc for which reproduction is instructed. in this case,
Step S220 becomes unnecessary.

On the other hand, when there is a disc instructed to be reproduced,
The controller 300 is an M.I. After step S221 for determining whether FLAG is "STOCK", the process proceeds to step S222, and it is determined whether the values of m and n are the same, and it is determined whether the disc number for which reproduction is instructed is the same as the current stocker position. To do.

When m and n are the same, controller 300
Advances to step S240 in FIG. 60, and steps S240 to S94 which are the same as steps S90 to S94 (FIG. 53) described above.
The UD cams 197 and 82 are moved to the position UP-2 by S244.
To DOWN-1. Therefore, the loading plates 104 and 140 are moved to the disk holding position POS. It is closed to 2 and holds the disc in the stocker, and the lock sleeve 62 is brought to the unlocked position (see FIGS. 33 and 37) to enable the disc transfer.

Next, the controller 300 operates in step S2.
45 to S250 bring the disc in the stocker to the reproduction position. First, the controller 300 performs step S2.
The FRONT signal is set to "H" at 45, and step S246
S. Wait for the CLOSE signal to change to "L". FR
When the ONT signal is set to “H”, the disc transport mechanism 1001 rotationally moves the timing belt 107 in the counterclockwise direction to roll the inserted disc D in the counterclockwise direction with respect to the friction belt 142.
Transfer to the front of the device. When the disc is brought to the position P2 shown in FIG. 12, the shutter-147 starts to open due to the pressing of the disc, and the S.S. The CLOSE signal changes to "L". Then, the controller 300 sets the FRONT signal to "L" in step S247, changes the pulse of the REAR signal with a 30% duty, and executes step S123 in step S123. Wait for the CLOSE signal to change to "H".

When the REAR signal pulse-changes at 30% duty, the disc transfer mechanism 1001 reverses the timing belt 14 at a low speed in the clockwise direction to move the disc toward the rear of the apparatus. The shutter-147 starts to close due to the reverse movement of the disk, and the S. When the CLOSE signal changes to "H", the controller 300 determines that the P.P. PULSE
The signal counting is started, and the process waits for the count value to become "7" in step S250. When the count value reaches "7", the controller 300 determines that the disc has been brought to the reproduction position, and in step S251, the FRONT signal and the REAR signal are set to "H" for 50 msec, and the motor 190A receives the electromagnetic wave. The brake is applied and the disc transfer is stopped.

Next, the controller 300 performs the steps 252 to S256 which are the same steps as the steps S46 to S50 (FIG. 51) described above, and the UD cams 197 and 8 are executed.
2. Move position 2 from position DOWN-1 to UP-2. UD
When the cam moves to the position UP-1, the optical mechanism 1006
Moves up to the up position where the reproduction disc is placed on the turntable 222 (FIG. 19), and when the UD cam moves to the position UP-2, the loading plate 10
7, 142 are in the open position POS. 3 (FIG. 13), the belts 107 and 142 are separated from the peripheral edge of the disc, the clamper 1009 is released, and the reproduction disc is held on the turntable (FIG. 2).
0).

Subsequently, the controller 300 makes a step S
Disc catch arm 13 by 257-S261
0 and 131 are rotated to the disc catch position (FIG. 71) to prevent the discs in the stocker facing the upper and lower sides of the reproduction disc from engaging with the reproduction disc. First, the controller 300 sets the REAR signal to "H" in step S257, and in step S258, the L.L. The counting of the PULSE signal is started, and the count value becomes "7" in the loop of steps S259 and S260, or the count value of the L.L. PUL
Wait for the SE signal to stop.

When the loading plate is in the open position POS.
Timing belt 107 has been expanded to 3
Is displaced by the pressing of the spring 134, and the pinion gear 13
It meshes with 2A. Therefore, when the REAR signal is set to "H", the disc transfer mechanism 1001 rotates the timing belt 107 in the counterclockwise direction to rotate the disc catch arms 130 and 131 in the counterclockwise direction, and the tip 130A. , 131A are slid onto the lower surface of the upper disk and the upper surface of the lower disk, which are adjacent to the upper and lower sides of the reproducing disk. When the count value becomes "7" or the side surface of the disc catch arm 130 is engaged with the vertical wall 121E of the upper disc guide 121, the L.L. PULSE
When no signal comes, the controller 300 has the disc catch arms 130 and 131 at the disc catch positions (see FIG. 7).
When it is determined that the motor has rotated up to 1), the FRONT signal and the REAR signal are set to "H" for 50 msec in step S260, the motor 190A is electromagnetically braked, and the movement of the timing belt 107 is stopped.

Subsequently, the controller 300 controls the signal processing circuit 307 and the servo circuit 308 (FIG. 48) to start reading the specified file. The read signal output from the optical pickup 2 is the RF amplifier 30.
The signal is input to the signal processing circuit 307 via 9 to be subjected to EFM demodulation, deinterleave, error correction, etc., and then supplied to the externally connected computer device 303 via the interface circuit 302.

As described above, the controller 300 finishes the disc reproduction control in the stock state, and the step S
262 at M.I. Set FLAG to "PLAY" and return to the main routine shown in FIG.

On the other hand, in step S222 of FIG. 59, m and n
If the values are not the same, the controller 300 determines that the D.D. LOCK signal is "L"
(Lock sleeve 62 is brought to the lock position). Bar D. When the LOCK signal is "L", the controller 300 moves the stocker to the position POS (m) for selecting the disk instructed to be reproduced in step S224. When the stocker is brought to the designated position, the controller 300 sets the constant n indicating the current stocker position to the value of m in step S225, and proceeds to step S240 of FIG. Start.

<< Disk Lock Miss / Reload Operation >> On the other hand, in step S223 of FIG. LOCK is “H”
When the lock sleeve 62 is not raised to the lock position, the controller 300 operates in step S2 of FIG.
Proceeding to step 70, steps S270 to S289, which are the same as steps S110 to S129 (FIG. 54) described above, are performed to set the misaligned disk D to the reference position P2 (FIG. 1).
(See 2)), and reload control is carried out to bring the stock position P4 again. Note that the details are omitted because they overlap with the above description.

<< Read Command Corresponding Operation in Standby State >> Next, when a read command is detected in the standby state, the controller 300 makes a step S6.
(FIG. 49) and S220 (FIG. 59), and after confirming that there is a disc instructed to be reproduced, step S221
62 through steps S290 and S291 of FIG.
Check if the values of m and n are the same.

When the values of m and n are the same, the disc instructed to be reproduced is in a state of being mounted on the optical mechanism, so that the controller 300 immediately proceeds to step S292 and the signal processing circuit 307 and the servo circuit. 308 (FIG. 48) is controlled to start reading the specified file, and in step S293, the M. Set FLAG to "PLAY" and return to the main routine shown in FIG.

On the other hand, when the values of m and n are different, the control is
The la 300 rotates (1) the disc catch arms 130 and 131 from the disc catch position (FIG. 71) to the disc uncatch position (FIG. 69) by the same steps S295 to S318 as the above steps S150 to S173. , (2) Set the UD cams 197 and 82 to the position UP-2.
To DOWN-1, (3) the disc D at the reproduction position P3 is transferred to the stock position P4, and (4) the UD cams 197 and 82 are moved from the position DOWN-1 to UP-2. When the above is completed, the controller 300 will be shown in FIG.
Return to step S223, and if After confirming that the LOCK signal is "L", the stocker is moved to the designated position POS (m), and the disc reproduction control is started.

<< Read Command Corresponding Operation in Eject State >> Next, when a read command is detected in the eject state, the controller 300 makes a step S6.
(FIG. 49) and S220 (FIG. 59), and after confirming that there is a disc instructed to be reproduced, step S221
(FIG. 59), S290 (FIG. 62), step S320.
The process proceeds to step S321 via (FIG. 63), and the same step S as steps S33 to S36 (FIG. 51) described above.
The UD cam is moved to the position DOWN-2 by 321 to S324.
From DOWN to DOWN-1. Confirm that the CLOSE signal is "H".

Door 11 is closed and D. CLOSE
When the signal is confirmed to be "H", the controller 3
00 moves the UD cam from the position DOWN-1 to UP-2 by the same steps S326 to S330 as the above steps S46 to S50 (FIG. 51), and
9. Returning to step S223 of 9, the D. After confirming that the LOCK signal is "L", the stocker is moved to the designated position POS (m), and the disc reproduction control is started.

<< Operation for Reading Command in Closed State >> Next, when a read command is detected in the closed state, the controller 300 causes the controller 300 to execute step S6 (see FIG. 4).
9) and S220 (FIG. 59), and after confirming that there is a disc for which reproduction is instructed, step S221 (FIG. 5).
9), S290 (FIG. 62), S320 (FIG. 63), S3
40 (FIG. 64), the process proceeds to step S341, and the D.
Confirm that the CLOSE signal is "H".

The door 11 is closed, and D. CLOSE
When the signal is confirmed to be "H", the controller 3
00 moves the UD cam from the position DOWN-1 to UP-2 by the same steps S342 to S347 as steps S46 to S50 (FIG. 51) described above, and
9. Returning to step S223 of 9, the D. After confirming that the LOCK signal is "L", the stocker is moved to the designated position POS (m), and the disc reproduction control is started.

<< File Read Termination Corresponding Operation >> When the designated file reading is completed, the controller 300 proceeds from step S7 of FIG. 49 to the flow chart JOB STAND-BY shown in FIG. S40
0, the signal processing circuit 307 and the servo circuit 308 (see FIG. 4).
8) is controlled to stop the disc reproduction, and step S
M. 401. Set FLAG to "STAND-BY" and return to the main routine of FIG.

<< Operation for Corresponding to Forced Door Closure >> When the door 11 opened by the operator is forcibly closed, the controller 300 controls the D.D. CLOSE
When the signal changes to "H", the process proceeds from step S8 of FIG. 49 to JOB D-CLOSE shown in FIG. 66, and the M.D. Check if FLAG is "EJECT". M. Only when FLAG is "EJECT"
The controller 300 determines that the door 11 is forcibly closed, and moves the UD cam from the position DOWN-2 to the DOWN-1 by the same steps S501 to S504 as the steps S33 to S36 (FIG. 51) described above. Door 1
1 is closed, and the M.P. Set FLAG to "CLOSE" and return to the main routine of FIG. In addition, M. When FLAG is not "EJECT", the controller closes after the operator forcibly pulls open the closed door and D. CLOSE signal is "H"
It is judged that the change has occurred, this is ignored, and the process returns to the main routine of FIG.

The present invention is not limited to the above-mentioned embodiments, and various modifications can be made. For example, in the apparatus of the above-described embodiment, a disc inserted from the disc insertion opening is stored in a stocker arranged in the apparatus, so that a plurality of discs stored in the stocker can be selectively reproduced. Although it is a type disk reproducing apparatus, a single disk reproducing apparatus without a stocker may of course be used. Further, according to the above-described embodiment, the disk is driven by driving the disk peripheral edge by the belt, but the disk is moved by holding the upper and lower surfaces of the disk by the roller and is limited to the disk transfer mechanism described above. is not.

Further, according to the apparatus of the above-described embodiment, the controller starts the disc transfer after opening the door, but it may be controlled so that the door opening and the disc transfer start at the same time. Further, although the disc reproducing device inserts the disc directly into the disc insertion port, the present invention is also applicable to a disc reproducing device in which a disc covered with a case such as a floppy disc or a mini disc is inserted into the disc insertion port. It can be applied, and in this case, damage to the disk case can be prevented.

[0142]

As described above, according to the apparatus of the present invention, even if the operator forcibly opens the closed door and inserts the disc into the disc insertion opening, the disc surface is not damaged. Therefore, smooth disk transfer can be achieved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a chassis structure of the present disc reproducing apparatus 1000.

FIG. 2 is an exploded perspective view showing the configuration of each mechanism attached to the loading chassis 100.

FIG. 3 is an exploded perspective view showing a configuration of a drive side disc guide portion 1002.

FIG. 4 is an exploded perspective view showing a configuration of a fixed side disc guide portion 1003.

FIG. 5 is a vertical cross-sectional view of a main part of a drive side disk guide portion 1002.

FIG. 6 is a vertical cross-sectional view of a main part of a fixed-side disc guide portion 1003.

FIG. 7 is a horizontal cross-sectional view of a main part of a fixed side disc guide portion 1003.

FIG. 8 is a horizontal sectional view of a main part of a fixed side disk guide portion 1003.

FIG. 9 is an exploded perspective view showing the configuration of a pulley drive mechanism 1004.

FIG. 10: Disc receiving position POS. FIG. 3 is a top view of the apparatus showing the disk transfer mechanism 1001 brought to No. 1;

FIG. 11 is a device top view showing a loading start position P1.

FIG. 12 is a loading reference position P2, a reproduction position P3,
The apparatus top view which shows stock position P4.

FIG. 13 shows an open position POS. 3 is a top view of the apparatus showing the disk transfer mechanism 1001 brought in to FIG.

FIG. 14 is a top view of the device showing an eject position P5.

FIG. 15 is an exploded perspective view showing the configuration of an optical mechanism 1006.

FIG. 16 is an exploded perspective view showing the configurations of an optical mechanism vertical movement mechanism 1008 and a loading plate opening / closing mechanism 1005.

FIG. 17: UD cam 8 brought to position DOWN-2
2 is a side view showing the positional relationship between 2 and the optical mechanism 1006. FIG.

FIG. 18: UD cam 8 brought to position DOWN-1
2 is a side view showing the positional relationship between 2 and the optical mechanism 1006. FIG.

FIG. 19 is a side view showing the positional relationship between the UD cam 82 brought to the position UP-1 and the optical mechanism 1006.

FIG. 20 is a side view showing the positional relationship between the UD cam 82 brought to the position UP-2 and the optical mechanism 1006.

FIG. 21: UD cam 8 brought to position DOWN-2
2 is a top view showing the positional relationship between 2 and the loading plate cam 186. FIG.

FIG. 22: UD cam 8 brought to position DOWN-1
2 is a top view showing the positional relationship between 2 and the loading plate cam 186. FIG.

FIG. 23 is a top view showing the positional relationship between the UD cam 82 and the loading plate cam 186 brought to the position UP-1.

FIG. 24 shows the UD cam 82 and the loading plate cam 18 brought to the position UP-1 when the transfer disk is present.
The top view which shows the positional relationship of 6.

FIG. 25 is a top view showing the positional relationship between the UD cam 82 brought to the position UP-2 and the loading plate cam 186.

FIG. 26: Stocker 1011 and stocker up / down mechanism 101
2 is an exploded perspective view showing the configuration of FIG.

FIG. 27 is a diagram showing a configuration of a stocker main body 41.

FIG. 28 is a view showing the structure of a wedge member 51A.

FIG. 29 is a top view showing the positional relationship between the wedge members 51A and 51B and the disks stored in the stocker.

30 is a cross-sectional view taken along the line AA in FIG.

FIG. 31 is an exploded perspective view showing the configuration of a disk lock mechanism 1013.

FIG. 32: UD cam 1 brought to position DOWN-2
The top view which shows the positional relationship of 97, 82 and the disk lock mechanism 1013.

FIG. 33: UD cam 1 brought to position DOWN-1
The top view which shows the positional relationship of 97, 82 and the disk lock mechanism 1013.

FIG. 34 is a UD cam 19 brought to position UP-1.
7 is a top view showing a positional relationship between the disk lock mechanism 1013 and the disk lock mechanism 713.

FIG. 35 is a UD cam 19 brought to position UP-2.
7 is a top view showing a positional relationship between the disk lock mechanism 1013 and the disk lock mechanism 713.

FIG. 36: Lock sleeve 6 brought to the lock position
2 is a cross-sectional view of essential parts showing the positional relationship between 2 and the disk in the stocker brought to the position POS (1). FIG.

FIG. 37 is a lock sleeve brought to an unlock position.
FIG. 6 is a cross-sectional view of a main part showing the positional relationship between the bulge 62 and the disk in the stocker brought to the position POS (1).

FIG. 38 is a lock sleeve 6 brought to a lock position.
2 is a cross-sectional view of an essential part showing the positional relationship between 2 and the disk in the stocker brought to the position POS (4). FIG.

FIG. 39 is a lock sleeve brought to an unlock position.
FIG. 9 is a cross-sectional view of a main part showing the positional relationship between the bulge 62 and the disk in the stocker brought to the position POS (4).

FIG. 40 is an exploded perspective view showing the configuration of the disk erroneous insertion prevention mechanism 1014.

FIG. 41 is an exploded perspective view showing the configuration of a door opening / closing mechanism 1015.

FIG. 42: UD cam 8 brought to position DOWN-2
2 is a main-portion cross-sectional view showing a positional relationship between the door 2 and the door opening / closing mechanism 1015. FIG.

FIG. 43: UD cam 8 brought to position DOWN-1
2 is a main-portion cross-sectional view showing a positional relationship between the door 2 and the door opening / closing mechanism 1015. FIG.

FIG. 44 is a cross-sectional view of essential parts showing the positional relationship between the UD cam 82 brought to the position UP-1 and the door opening / closing mechanism 1015.

FIG. 45 is a cross-sectional view of essential parts showing the positional relationship between the UD cam 82 brought to the position UP-2 and the door opening / closing mechanism 1015.

FIG. 46 is a timing chart showing an operating state of another mechanism that interlocks with the opening / closing positions of the loading plates 104 and 140.

FIG. 47 is a timing chart showing an operating state of another mechanism that interlocks with the positions of the UD cams 197 and 82.

48 is a block diagram showing a drive control circuit 1016 of the disc reproducing apparatus 1000. FIG.

FIG. 49 is a flowchart showing the main routine of the system controller 300.

FIG. 50 is a flowchart showing JOB LOAD.

FIG. 51 is a flowchart showing JOB LOAD.

FIG. 52 is a flowchart showing a JOB EJECT.

FIG. 53 is a flowchart showing a JOB EJECT.

FIG. 54 is a flowchart showing a JOB EJECT.

FIG. 55 is a flowchart showing a JOB EJECT.

FIG. 56 is a flowchart showing a JOB EJECT.

FIG. 57 is a flowchart showing a JOB EJECT.

FIG. 58 is a flowchart showing a JOB EJECT.

FIG. 59 is a flowchart showing JOB PLAY.

FIG. 60 is a flowchart showing JOB PLAY.

FIG. 61 is a flowchart showing JOB PLAY.

FIG. 62 is a flowchart showing JOB PLAY.

FIG. 63 is a flowchart showing JOB PLAY.

FIG. 64 is a flowchart showing JOB PLAY.

FIG. 65 is a flowchart showing JOB STAND-BY.

FIG. 66 is a flowchart showing JOB D-CLOSE.
G.

67 is a top view of the disc position regulating mechanism 1017 with the loading plate in the disc holding position. FIG.

FIG. 68 is a front view of the disc position restricting mechanism 1017 with the loading plate in the disc holding position.

69 is a top view of the disc position restricting mechanism 1017 when the loading plate is expanded to the disc open position. FIG.

FIG. 70 is a front view of the disc position restricting mechanism 1017 when the loading plate is expanded to the disc open position.

71 is a top view of the disc position regulating mechanism 1017 showing a state where the disc position regulating mechanism 1017 is rotated to the disc catch position. FIG.

72 is a front view of the disc position regulating mechanism 1017 showing a state where the disc position regulating mechanism 1017 is rotated to the disc catch position. FIG.

[Explanation of symbols]

 1 Front Panel 1A Disc Insertion Portion 2 Front Chassis 3 Top Cover 4 Bottom Cover 6 Guide Sleeve 11 Door 11A Spring Hooking Part 11A 12 Reinforcing Plate 13 Coil Spring 13 'First Coil Spring Part 13 "Second Coil Spring Part 13C Connecting part 15A, 15B, 16 Shaft 20 Main chassis 20A, 20B Opening 40 Base plate 41 Stocker main body 41 'Mounting part 41A to 41D Disk storage slot 41A' to 41D 'Slot upper surface 41A "to 41D" Slot lower surface 50 Screw 51A, 51B Wedge member 510A-510D Wedge portion 510A'-510D 'Inclined surface 510A "-510D" Flat surface 511A-511D Spring portion 512 Attachment portion 61 Lock base 62 Lock sleeve 63 Lock cam 64 Lock release pin On 65 Lock arm 66 Spring 82, 197 UD cam 85 UD Link arm 100 Loading chassis 104, 140 Loading plate 106 Timing gear 107 Timing belt 108 Timing pulley 121, 122, 141 Disc guide 130 Upper disc catch arm 131 Lower disc catch arm 132 Disc catch pinion 133 Leaf spring 134 Return spring 142 Friction belt 160 Spring 163A to 163I Optical sensor 180 Motor chassis 190A, 190B, 190C Drive motor 191A Wo -Warm member 191A1 Worm 191A2 Gears 192, 193 Emergency gear 200 Mechanical chassis 210 Optical head 211 Spindle motor 214 Damper 222 Turntable 225 Clamp base 227 Clamp top 230 Susbase 300 System controller 301 Mode key 302 Interface circuit 303 Personal computer 304 to 306 Motor drive circuit 307 Signal processing circuit 308 Servo circuit 309 RF amplifier 1000 Disc reproducing apparatus 1001 Disc transfer mechanism 1002 Drive side disc guide section 1003 Fixed side disc guide section 1004 Pulley drive mechanism 1005 Loading plate opening / closing mechanism 1006 Optical mechanism 1008 Optical mechanism vertical mechanism 1009 Clamper 1010 Clamper Holding mechanism 1011 Stocker 1012 Stocker up / down mechanism 1013 Disk lock mechanism 1014 Disk erroneous insertion prevention mechanism 1015 Door opening / closing mechanism 1016 Drive control circuit D disk Du Disk top Dl lower disk surface De disc periphery Ds spindle hole

Claims (2)

[Claims] 1. A disc insertion opening formed in the disc reproduction device, into which the disc is inserted, a disc transfer means for transferring the disc inserted into the disc insertion port into the disc reproduction device, and the disc reproduction device. A door that is rotatably supported outside and that can open and close the disc insertion opening; spring means that urges the door in a closing direction; a door opening / closing mechanism that opens the door to the outside of the apparatus; And a control means for controlling the door opening / closing mechanism to open the door when the disk is forcibly opened against the spring means and the disk is inserted into the disk insertion opening. Characteristic disc playback device. 2. The disk reproducing apparatus, wherein the control means controls the disk transferring means to transfer the disk into the disk reproducing apparatus after opening the door.