JPH0917171A - Disk reproducing device - Google Patents

Abstract

PURPOSE: To obtain a disk reproducing device with a door opening/closing mechanism for enabling an operator to force to close a door by opening the door outward with a mechanism such as a cam. CONSTITUTION: A front panel 1 is formed by a disk insertion port 1A where a disk is directly inserted and a door 11 for opening/closing the disk insertion port 1A. The door 11 is supported outside a device so that it can rotate, and at the same time, has a coil spring 13 which is energized in the closing direction. On the other hand, an UD cam 82 rotates the coil spring 13 in the direction for opening the door 11 by a press part 82D and opens the door 11 outside the device. By adopting this sort of mechanism, the door cannot be damaged even if the operator forces to close the opened door.

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 having a door capable of opening and closing a disc insertion slot into which a disc is directly 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]

However, if such a door opening / closing mechanism is adopted in a so-called slot-in type disc reproducing apparatus in which a disc is directly inserted into the disc insertion opening, a carrier is provided above the opened door. Since it does not exist, there is a problem that the door is forcibly closed and damaged after the operator takes out the disc.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a disc reproducing apparatus provided with a door opening / closing means that does not damage the door even if the operator forcibly closes the opened door. A disc insertion opening formed in the reproducing device, into which the disc is directly inserted, a door rotatably supported outside the disc reproducing device and capable of opening and closing the disc insertion opening, and spring means for urging the door in a closing direction. And a door opening / closing means that is engageable with the spring means, moves the spring means in a direction in which the door opens, and opens the door to the outside of the device,
It consists of.

[0005]

According to the above-described device of the present invention, the door is biased in the closing direction by the spring means, and the door opening / closing means moves the spring means in the direction of opening the door to open the door to the outside of the device. ..

[0006]

An embodiment of the present invention will be described below with reference to the drawings. The apparatus of this embodiment reproduces the disc (CD-ROM) inserted from the disc insertion port,
By storing the discs in a stocker arranged in the apparatus, a stocker type disc changer capable of selectively reproducing a plurality of discs stored in the stocker is configured. In addition, its outer shape is a standard size for peripheral devices built into the computer body.
1/4 inch, height H x width W x depth D is 41.5 x 14 to match the form factor of half height
The size is very small, 6 × 208 (mm).

<< Chassis >> FIG. 1 shows the disc reproducing apparatus 10 of 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. A top cover-3 and a bottom cover-4 are attached to the upper and lower ends of the main chassis 20, respectively.
Further, the front panel 1 is attached to the front surface of the front chassis 2. 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 surface when the disc is inserted or removed.

<Disk Transfer Mechanism> FIGS. 2 to 8 show the details of the disk transfer mechanism 1001. 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. The disc is supported on the lower surface of the loading chassis 100 so as to be held in the lateral direction of the device so as to be held between the discs.

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-
It is inserted into 100C, 100D to 100F, and hung on the lower surface of the loading chassis 100 so as to be movable left and right. Pinion gears 1 axially supported on the lower surface of the chassis 100 are provided on opposite side surfaces of the loading plates 104 and 140.
Racks 104A and 140A that mesh with 43 are formed,
They are connected so as to move in the opposite direction. Further, a spring 160 is hooked between the loading plates 104 and 140 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. R. 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 surfaces 121B and 122B engage with the outer peripheral portions of the upper surface Du and the lower surface Dl of the information recording radius of the disk and guide the left side of the disk.

A timing pulley 106 is pivotally supported by a shaft 105 at the front end of the upper disc guide 121.
A timing pulley 108 is pivotally supported by a shaft 108 at the rear end. A timing belt 107 is stretched between both pulleys. The outer peripheral surface of the timing belt 107 forms a disk transfer surface 107A, and the horizontal surfaces 121B and 122B.
The disk peripheral edge De guided during the period is driven. The lower disc guide 122 prevents the timing belt 107 from being bent, so that the tooth surface 107 of the timing belt 107 is prevented.
A regulation wall 122C that slidably contacts B is provided.

A pulley drive mechanism 1004 for rotationally driving the timing pulley 105 is shown in FIG. Drive mode
A rubber grommet 196A is attached to the rear end of the motor 190A, and the motor bracket 195 and the motor chassis 180 are attached.
It is fixed between the cut and raised portion 180A. Motor 1
The worm 191A is press-fitted onto the rotating shaft of 90A. The gear member 188 is rotatably supported by the chassis 180 by a shaft 181, and a gear 188B formed under the gear member 188 has a worm 19
It meshes with 1A. The loading links 123 and 124 are rotatably connected by a rotating shaft of a gear 125B, and the shaft 105 of the pulley 106 is attached to the free end of the link 124.
Are rotatably mounted. The shaft 128 is fixed to the free end of the link 123 and is inserted into the center hole 181A of the shaft 181. In addition, the pulley 10 is provided at the center of the plate 124.
A gear 125A connecting the gear 106B and the gear 125B formed at the lower end of 6 is rotatably supported, and a gear 125C connecting the gear 125B and the gear 188A formed above the gear member 188 is centered on the plate 123A. Is pivotally supported.

According to the above construction, 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
Since it does not move in the device together with 06, it contributes to downsizing of the device. Further, since the load load on the loading plate 104 is reduced, the loading plates 104 and 1
It is possible to set the spring coefficient of the spring 160 that brings 40 closer to each other, and to insert the disc with a weak force.

Further, 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.

Further, in order to enable removal of the disc in the apparatus when the apparatus fails or when the apparatus is detached from the personal computer body, the above-mentioned worm gear 191A is provided.
A gear 191A2 is formed at the end of the shaft, and an emergency is supported by the shaft 195A of the motor racket 195.
It meshes with the gear 193. On the side surface of the main chassis 20, an opening 20A is formed at a position facing the gear 193 so that the emergency gear 193 can be manually rotated from 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 in order to prevent slippage with the outer peripheral surface De of the disc. 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 engages with the edge Dc1 of the disk upper surface Du and the edge Dc2 of the disk lower surface Du, respectively, and guides the disk right side.

According to the disc transfer mechanism 1001 described above, the loading plates 104 and 140 are provided with the spring 16 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 of the disc guide 141 by the biasing force of 0,
Belt 1 supported by ding plates 104 and 140
The disc receiving position PO where the separation distance W1 between 07 and 142 is 112 mm, which is narrower than the disc having a diameter of 120 mm.
S. 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 of the timing belt 107 and an introduction portion 141D (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 rotationally moves the timing belt 107 counterclockwise in order to pull the disc D into the apparatus. However, since the peripheral edge De of the disc slides with the introduction portion 141D, the disc is moved at that position. However, it is necessary to assist the operator in inserting the disc. 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. To this end, in the disc transfer device 1001, the drive side disc guide part 1002 for driving the disc is arranged on the left side of the device, and the fixed side disc guide part 1003 is arranged on the right side of the device, and the disc D is rotated in the device while being rotated clockwise. -Ding.

When the disc transfer mechanism 1001 completely holds the left and right ends of the disc D between the timing belt 107 and the friction belt 142, the disc D can be stably transferred without the assistance of the operator. Then, as shown in FIG. 12, the disc is brought to the reproducing position (P3) or the stock position (P4) for storing it in the stocker main body 41. Also, the disk transfer mechanism 1001
14 by rotating the timing belt 107 in the clockwise direction, as shown in FIG.
The disc of 4) is brought to the reproduction position (P3) or the eject position (P5) for ejecting the disc. At the eject position, the spindle hole Ds of the disc projects from the disc insertion opening 1A to the outside of the device, and the belt 14
The space W1 between the first and second positions is closed to the same space (112 mm) as in 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 front panel. Further, a feed motor 212 is fixed to the lower surface of the mechanical chassis 200, and its rotation is controlled by the gears 206B, 2B.
It is transmitted to the sled rack 209 via 07A, 207B, 208A, and 208B, and drives the optical pickup 210 in the disk radial direction. 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 214 are respectively provided in the holes 200A formed at the four corners of 0.
Are mounted on the suspension base 230 via the dampers 214 by the screws 215. On the other hand, the sustain 230
Pins 231 and 232 are fixed to the left and right side surfaces of and are inserted and guided in 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 so as to project downward at the ends of the cams 197 and 82, and a UD link gear rotatably supported by the shaft 21 on the lower surface of the main chassis 20.
The holes 85A and 85B of the frame 85 are inserted. As a result, the UD cams 197 and 82 are connected by the UD link arm 85 so as to move in opposite directions.

Further, the UD cams 197 and 82 are the guide grooves 1
97A and 82A are formed, and pin 2 of the suspension base 230 is formed.
Guides 31 and 232. 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. Further, the guide plates 198 and 83 for guiding the UD cams 197 and 82 are provided with vertically extending guide grooves 198A,
83A is formed, and pins 231 and 2 of the suspension base 230 are formed.
Guide 32. Therefore, the sustain 230, that is,
The optical mechanism 1006 moves up and down by the movement of the UD cams 197 and 82.

The drive motor 190B has a rubber grommet 196B mounted on the bottom surface thereof, and a motor bracket 194.
It is fixed between the cut-and-raised part 180B of the motor chassis 180. A worm gear 191B is press-fitted into the rotary shaft of the motor 190B. The gear member 187 is axially supported by the chassis 180 by a shaft 182, and the gear 187 formed below the gear member 187 meshes with the worm 191B1.
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 axially supported by the shaft 184 from the inside of the right side surface of the chassis 180 toward the left side, and the gear 185B formed on the bottom surface thereof meshes with the rack 197D of the UD cam 197. Therefore, the rotation of the motor 190B is 1
91B1, gear 187C, worm 187B, gear 18
5A, 185B and the rack 197D are transmitted, and the UD cam 82 is moved in the front-rear direction of the apparatus via the UD cam 197 and the UD link arm 85.

UD cams 197 and 82 and optical mechanism 1006
Explaining the positional relationship of the positions, the position DOW shown in FIG.
While moving between N-2 and the position DOWN-1 shown in FIG. 18, the UD cam 82 guides the pin 232 of the suspension base 230 by the horizontal portion G1 of the guide grooves 197A and 82A to reproduce the optical mechanism 1006. The disc is kept at the down position, which is retracted below the position D (see FIG. 47). Position DOWN-1 shown in FIG. 18 and position UP shown in FIG.
While moving between -1, the UD cam 82 is guided by the guide groove 82A.
The pin 232 is guided by the inclined portion G2 of the optical mechanism 1
006 is moved up and down. Position UP- shown in FIG.
1 and the position UP-2 shown in FIG. 20,
The UD cam 82 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. At the up position, the disk mounting surface of the turntable 222 is brought 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 transfer disc D unlike the tray type disc reproducing apparatus.

On the other hand, the gear member 187 has a shutter 187D formed at the lower end thereof, and its rotation 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 formed at the lower end of the above-mentioned worm gear 191B so that the disc clamp can be released and the disc can be taken out when the device fails or is detached from the personal computer. And engages with an emergency gear 192 that is rotatably supported by the shaft 194A of the motor bracket 194. An opening 20B (see FIG. 9) is formed on a side surface of the main chassis 20 at a position facing the gear 192 so that the gear 192 can be manually rotated from the outside of the apparatus. Therefore, the emergency gear 192 has the opening 20B (FIG. 9) formed on the side surface of the main chassis 20.
It is exposed to the outside of the device according to the reference) and allows manual rotation by the operator. Therefore, the operator can open the opening 20 when the device fails.
The disc clamp can be released by manually rotating the emergency gear 192 via B.
Then, by manually rotating the above-mentioned Emmer-Jeany gear 193 through the opening 20A (see FIG. 9), the disc with the clamp released can be inserted into the disc insertion opening 1
It can be taken out from A.

<< Loading Plate Opening / Closing Mechanism >> On the other hand,
The loading plates 104 and 140 described above are opened and closed by the rotation of the drive motor 190B of the above-described optical mechanical vertical mechanism. The structure of the loading plate opening / closing mechanism 1005 will be described below. As shown in FIG. 16, a gear 187A is formed above the worm 187B, and the peripheral surface of the loading plate cam 186 is formed. It meshes with the gear 186A formed on the. The loading plate cam 186 is axially supported by the shaft 183 on the upper surface of the motor chassis 180, and the upper surface of the loading plate cam 186 is engaged with the pin 122A (see FIG. 3) projectingly formed on the lower surface of the disk guide 122. A possible cam 186B is formed.

According to the above construction, when the UD cam 197 is in the position DOWN-2, the loading plate cam 1
86 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, and the loading plates 104, 14
0 is the right end 1 of the plate 104 due to the urging force of the spring 160.
04B is engaged with the stopper portion 141D of the disc guide 141, and the disc receiving position POS. 1 still remains (see FIG. 10). Motor 190B rotates, U
When the D-cam 197 is brought to the position DOWN-1, the loading plate cam 186 rotates counterclockwise to the angle shown in FIG. However, the cam 186
B still does not engage pin 122A.

The motor 190B is rotated and the UD cam 197 is rotated.
Is brought to position UP-1, loading cam 1
86 rotates counterclockwise to the angle shown in FIG. The outer peripheral surface of the cam 186B is the disc guide 122.
Of the disk receiving position POS. 1
Install the loading plates 104 and 140 in the spring 16
Move slightly open against the bias of 0. Note that FIG.
4, loading plates 104, 1
40 is a disc holding position POS. 2
(See FIG. 12), the cam 186B is still pin 1
22A is not engaged. UD cam 197 is in position U
When brought to P-2, loading cam 186 rotates counterclockwise to the angle shown in FIG.
By pressing 2A, the loading plate 10
4, 140 in 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. On the lower surface of the clamper base 225, a magnetic plate 111 facing a magnet 223 (see FIG. 15) attached to the center of the turntable 222 is provided. Is installed. Clamp top 227 has a cross section of approximately T
The flange portion 227A is formed in a V shape and is tapered toward the peripheral edge. The shaft portion 227B is a low
The clamper base 2 located below the loading chassis 100 and passing through the opening 100I of the loading chassis 100.
It is fixed at 25. On the other hand, the loading plate 100
The disc guide upper-144 is fixed to the lower surface of the
The inclined surface 144A prevents the front end of the disc inserted into the disc insertion opening 1A from tilting, and the clamper guide 144B prevents the clamper base 225 from being excessively inclined.

<< Clamper Holding Mechanism >> Further, on the upper surface of the loading plate 100, a clamper holding mechanism 1010 for holding the clamper 1009 at the retracted position 0.5 mm above the reproducing disk D is provided. The clamper holders 145 and 146 have pins 14 formed on the lower surface thereof.
5A and 146A are openings 10 of the loading chassis 100.
Loading plate 10 through 0G and 100H
4 and 140 are inserted into the guide grooves 104D and 140D, and the inverted T-shaped guide pieces 145B and 146B formed on the lower surface are inserted into the grooves extending from the opening 100I to the left and right. It is guided by the upper surface of the Ding chassis 100 so as to be movable left and right. Further, the clamper holders 145, 146 are urged by the spring 128 in the direction of moving closer to each other, and the flange portion 2 described above is provided at the opposing end portions.
Holding portions 145C and 146C for holding 27A are formed.

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), its pins 145A, 146A are loaded on the loading plate 10.
4, 140 move in the guide grooves 104D, 140D. Therefore, the clamper holders 145 and 146 are provided with the spring 16
By the urging force of 1, the flange portion 227A is continuously held between the holding portions 145C and 146C, and the clamper 1009 is held at the retracted position which is 0.5 mm above the disc D at the reproducing position (see FIG. 17).

The loading plates 104 and 140 are located at the disk holding position POS. 2 to the open position POS. 3 to move the clamper holders 145 and 146 to the guide groove 1
04D, 140D engaging the end of the loading plate
It moves open with the movement of G. Therefore, the clamper holders 145 and 146 release the holding of the flange portion 227A,
The clamper 1009 is attracted to the magnet 224 of the turntable 222, and the disc D is turned on the turntable 222.
Between the two.

<< 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 slits 41A to 41D are formed. The front end of each of the slits 41A to 41D has a tapered shape in cross section, and the flat surfaces 41A 'to 41D' located at the back of the slit support the peripheral edge of the disc (see FIG. 30). In addition, the stocker body 41 has a slit 4
1A to 41D and openings 41E to 41H penetrating the back surface are formed, and each of the openings has a wedge member 51 described later.
The tips of A and 51B are inserted.

The wedge members 51A and 51B are for removing rattling of the disks stored in the stocker.
Wedges 510A to 510D formed at the tip thereof are inserted into the openings 41E to 41H, and the stocker main body 41 is fixed to the base plate 40 by the screw 50 and fixed to the upper surface of the mounting portion 41 'of the stocker main body 41. To be done. FIG.
As shown in FIG. 8, the wedge members 51A and 51B are shaped like a fork tip when viewed from the front, and
11A to 511D are thinly formed to obtain flexibility. Each of the wedge portions 510A to 510D has a wedge shape with its tip and lower surface inclined, and when the wedge portions 510A to 510D are inserted between the disk upper surface Du and the slit upper surface, the inclined surface 5 is formed.
10A 'to 510D' engage with the edge of the disc upper surface Du and press the disc downward by the biasing force of the spring portions 511A to 511D (see FIG. 30).

Although the wedge members 51A and 51B also generate a component force for ejecting the disc D from the stocker, the disc guide sleeve 6 or the disc lock sleeve 62 is inserted into the disc spindle hole as described later. Therefore, the disc is not pushed out of the stocker (see FIGS. 36 to 38).

<Stocker Vertical Mechanism> On the other hand, the stocker 10
Below the numeral 11, a stocker is arranged at height positions POS (1) to POS where slits 41A to 41D are aligned with the transfer disc.
A stocker up-and-down mechanism 1012 brought in (4) is arranged. The drive motor 190C is fixed to the main chassis 20 via a motor bracket 49, and a worm gear 191C is press-fitted into its rotary shaft. The gear member 45 is rotatably supported by a shaft 27, and a gear 45A formed on the upper portion of the gear member 45 meshes with a worm gear 191C. The gear 45B formed at the lower end of the gear member 45 meshes with the gear 440A formed at the lower end of the screw gear 440, and rotationally drives the screw gear 440 pivotally supported by the shaft 260. The screw gear 440 is rotated by the gear 46.
Screw gears 441, 4 via A, 47A, 47B
42 is transmitted to the gears 441A and 442A, the shaft 262,
The screw gears 441 and 442 pivotally supported by 263 are interlocked with the screw gear 440 to rotate. The screw gears 440 to 442 are screwed onto the nuts 42A, 42B, 43 mounted on the base plate 40, and vertically move the stocker 1011 according to the rotation thereof.

Each position POS (1) -of the stocker 1011
To detect the POS (4), the 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 is the gear 4 described above.
6 is meshed with a gear 46B formed on the lower surface of 6 and is rotationally driven in conjunction with the vertical movement of the stocker. The stocker position gear 48 has, on its upper surface, a shutter piece 48A for detecting the stocker reference position and a shutter piece 48B having slits corresponding to the positions POS (1) to POS (4) are formed. The position is detected by the optical sensors 163F and 163G protruding from the lower surface of the sheet 20.

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.

<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. Top cover-3
A guide sleeve 6 penetrating through the spindle hole Ds of the disk stored in the stocker 1011 is fixed to the lower surface of the disk through 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 disc D1, and restricts the movement of the disc in the stocker 1011 located above the transfer disc D1 (FIG. 36).
-See Figure 39).

On the other hand, a guide sleeve is mounted on the main chassis 20.
A lock sleeve 62 is arranged so as to be vertically movable so as to face the bush 6. The lock base 61 is inserted into the opening 20C of the main chassis 20 by a flange 61A formed at the lower end thereof, and is rotated and fixed. A guide groove 61C extending upward is formed in the guide portion 61B of the lock base 61,
A pin 62A formed on the inner surface of the lock sleeve 62 so as to project therefrom.
Guide.

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. Therefore, the lock cam 63 guides the pin 62A by its rotation, and the lock sleeve 62
Is moved up and down between a lock position (see FIGS. 36 and 38) for fitting with the guide sleeve 6 and an unlock position (see FIGS. 37 and 39) allowing the disk transfer. A lock release pinion 64 is fixed to the lower end of the cam 63 by a screw 67 and meshes with a gear 65B of a lock arm 65. Lock arm 65 is shaft 22
Is axially supported by the lower surface of the main chassis 20 and is biased counterclockwise by a spring 66. Further, the tip 8 of the UD link arm 85 described above is provided on the lower surface of the lock arm 65.
A protrusion 65C engageable with 5C is formed to project.

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 accommodated in the stocker main body 41, and the movement within the stocker 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 have an upper surface of 0.8 below the lower surface Dl of the transfer disk D.
mm down to the unlock position (Fig. 3
7, see FIG. 39). As described above, the guide sleeve 6
Since the lower surface of the transfer disk D extends only 0.8 mm above the upper surface Du of the transfer disk D, neither the guide sleeve 6 nor the lock sleeve 62 penetrates the spindle hole Ds of the transfer disk D1, and the stocker main body 41 Can be freely attached and detached.

When the UD cams 197 and 82 are brought to the position UP-1, the UD link arm 85 has its tip 85C at the projection 6 of the lock arm 65 as shown in FIG.
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 reach the lock position. If the stocker moves up and down in this state, it not only damages the transfer disk D1 by the guide sleeve 6 or the lock sleeve 62, but also causes a failure of the apparatus. In order to prevent such troubles, the lock arm 65
As shown in FIG. 31, the shutter piece 65A is
Is formed, and its rotational position is detected by an optical sensor 163H protruding from the lower surface of the main chassis 20. The output of the optical sensor-163H forms a disk lock signal (bar D.LOCK) and is in the "L" state when the lock sleeve 62 is brought to the lock position.

<< 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 formed with a flap 147A that prohibits the disc insertion into the disc insertion opening 1A (see FIG. 1) of the front panel 1 facing downward, and a pinion gear 147B is formed at the right end over an angle of about 180 degrees. ing. The lower end of the flap 147A is the disc D.
Since it engages with the upper surface of the disc during the load / eject operation of (1), a felt, compressed urethane, or the like for preventing disc damage is attached (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 pushed apart by inserting the disk, the arm 148 is moved by the biasing 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 rotated to the outside of the device by resisting the biasing force of the spring 149, the ejection of the disc in the device is not prohibited regardless of the position of the loading plate. . When the disk is transferred to the front of the apparatus and the peripheral edge of the disk engages with the flap 147A, the shutter 147 is pushed open and thereafter slides on the disk upper surface. Loading plate 10 by ejecting disc
4, 140 move close to each other, and the pin 129 of the plate 104 is moved.
When the arm engages the side surface 148B of the arm 148, the arm 1
Reference numeral 48 rotates clockwise in conjunction with the movement of the loading plate 104 to separate the shutter 147 from the upper surface of the disk. When the disc is brought to the eject position P5 shown in FIG. 14, the loading plate 10
4, 140 are disk receiving positions POS. 1 and the arm 148 inserts the shutter 147 into the disc insertion slot 1
Rotate to a position that allows disk insertion into A.

A shutter piece 147D is formed above the shutter 147, and the shutter 1 is formed by the optical sensor-163B protruding below the loading chassis 100.
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, each disk transfer position is S. Optical sensor-163C indicating the above-mentioned disk transfer distance with reference to the "H" change of the CLOSE signal.
It is detected by pulse counting the output (bar L.PULSE) of FIG. 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 changes from the reference position to the bar L. 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. A reinforcing plate 12 is fixed to the inner surface of the door 11, and shafts 15A and 15B are provided to close 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, on the inner surface of the front panel 1, a disc drop prevention member 8 formed of felt and having slits 8A cut is attached, and the disc drop preventive member 8 holds the disc brought to the eject position by the slit 8A. , To prevent the disc from falling out of the disc insertion opening 1A.

On the other hand, the spring 13 is composed of two coil spring portions 130 and 131 connected by the connecting portion 13C, and is pivotally supported inside the front panel 1 by the shaft 16. The other end of the coil spring portion 131 is inserted into a hole formed in the spring hooking portion 11A so as to urge the door 11 in the closing direction, and one end 13C of the coil spring portion 130 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 and 57 described later, the operation of the mode key or the operation control of the mechanism corresponding to the operation command from the computer device 303 is performed.

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 apparatus of this embodiment described above will be described below with reference to the flowcharts of FIGS. 49 to 57. In the flow chart, "n" indicates the stocker position and is set in response to the stocker position. D. FLAG (n) is each slit 41A of the stocker
27 is a flag showing presence / absence of a disk of 41D (see FIG. 26). For example, D. When FLAG (1) is set to "1", it indicates that a disc is present in the slit 41A. M. FLAG indicates the operation mode of the device,
Loading plate as shown in FIG. 10 or FIG.
104, 142 are disc receiving positions POS. When it is brought to 1 and the disk can be loaded, it is set to "READY". In addition, M. FLAG is a loading plate 104, as shown in FIG.
142 is in the open position POS. Brought to 3 and disk D
Is set to "PLAY" when the disc is reproduced, and when the disc reproduction is completed and the reproduction disc is simply clamped to the standby state, it is set to "STAND-BY". In addition, M. In the FLAG, the transfer disk D is stored in the stocker, and the loading plates 104 and 142 are in the open position POS. When brought to 3, it is set to "STOCK". Although not shown in the flow chart, after the UD cam is moved, a flag indicating the position of the UD cam is set.

<Main Flow> When the power is turned on, the controller 300 is subjected to a predetermined initialization process, and then proceeds to the main routine shown in FIG. 49. The "L" change of the IN signal (disk insertion), the operation of EJECT keys 1 to 4, and the read command from the computer device 303 are repeatedly monitored.

<Disc Loading Operation> When the disc D is inserted into the disc insertion opening 1A, the loading plates 104 and 140 are attached to the pulley winding portion 107C and the outer peripheral surface of the disc introducing wall 11E. It engages with the outer peripheral surface De of the disc and is expanded as the disc is inserted. Plate 10
4, the shutter lever-148 rotates counterclockwise, and the shutter-147 rotates toward the inside of the apparatus. When the disc is inserted to a certain extent, the flap 147 engages the upper face of the inserted disc D with the flap 147A, and then slides on the upper face of the disc D until the disc is completely inserted into the apparatus.

Disk D up to position P1 shown in FIG.
Is inserted, the output of the optical sensor-163B (IN)
Changes to "L", and the controller 300 operates in step S1.
To the flowchart JOB LOAD shown in FIG.
To the stock position P4.
Then, the loading control for transferring to the start is started. First, the controller 300 sets the REAR signal to "H" in step S20, and the S.R. Wait for the CLOSE signal to change to "H".
When the REAR 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 rolled in the clockwise direction with respect to the friction belt 142, and is transported toward the rear of the device. S. within 3 seconds. If the CLOSE signal does not become "H", the controller 300 judges that the inserted disk could not be transferred, and the step S4
In step 5, the REAR signal is set to "L" to stop the loading control, and the process returns to the main routine of FIG.

When the disc is transferred normally and the disc is brought to the reference position P2 shown in FIG. 12,
The shutter-147 is almost closed, and the S. The CLOSE signal changes to "H". Then, the controller 300 determines in step S23 whether the disc presence flag D. FLAG (n)
Is set to "1", and a flag check is performed to see if the UD cam is in the position DOWN-2 in step S24. Position DO
If it is in WN-2, the controller 300 performs step S.
25 FRONT signal and REAR signal by 50 mse
During the period c, the motor 190A is set to "H" and the motor 190A is electromagnetically braked to temporarily stop the disk transfer.
The UD cams 197 and 82 are moved to the position DOWN-2 by S29.
To DOWN-1 to close the door 11.

That is, the controller 300 operates in step S2.
P.6. After the UP signal is set to "H", the counting of the output of the optical sensor-163D (bar P.PULSE signal) is started in step S27, 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 S1
P.8. 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, as described above, the door 11 is closed (see FIG. 43) and the lock sleeve 62 is brought to the unlocked position (see FIGS. 33 and 37). .

On the other hand, as will be described later, when the eject key is operated in the eject state, the controller 30
0 moves the UD cam between positions DOWN-2 and DOWN-1, and opens and closes the door 11. Therefore, when the eject key is operated and the UD cam is brought to the position DOWN-1 while the disc is brought to the eject position, the door 11 is half-open at the position where it is engaged with the disc lower surface at the eject position. It becomes the state of. In this state,
When the disk is pressed by the operator and the loading operation is started, the door is closed as the disk moves into the apparatus, and it is not necessary to move the UD cam to the position DOWN-1. Therefore, when the controller 300 moves the disc into the apparatus and then determines in step S24 that the UD cam is not at the position DOWN-2, it determines that the UD cam has already been brought to the position DOWN-1. , Steps S25 to S29 are jumped, and the process proceeds to Step S30.

Subsequently, the controller 300 sets the REAR signal to "L" and the FRONT signal to "H" in step S30 to restart the disk transfer, and in step S31.
By S. Wait for the CLOSE signal to change to "L". 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. The shutter 14 is pressed by pressing the disk D.
7 is opened toward the outside of the apparatus, and the S. When the CLOSE signal changes to "L", the controller 300 makes a step S
Return FRONT signal to "L" by 32 and REA
The R signal is set to "H", and the S.R.
Wait for the "H" change of the CLOSE signal. When the REAR signal is set to "H", the disk transfer mechanism 1001
Rotates the timing belt 14 counterclockwise,
The insertion disk is moved backward again toward the rear of the device.

When the disc D is reversed, the shutter
120 closed again and S. When the CLOSE signal changes to "H", the controller 300 starts pulse counting of the output (bar L.PULSE) of the optical sensor-163C in step S34, and the count value becomes "137" in step S35. Wait for The disc is moved in reverse so that the disc transfer condition is the same as when the disc is brought from the stock position to the reproduction position and the reproduction position is prevented from being displaced. The count value is "137"
Then, the controller 300 determines that the disk D has been brought to the vicinity of the stock position P4, and the step S
At 36, the REAR signal is pulse-changed with a 30% duty, and the process waits until the count value becomes "167" at step S37. By setting the REAR signal to the 30% duty, the transfer speed of the disk is reduced and the overrun at the time of stop is prevented. The count value is "167"
Then, the controller 300 determines that the disk has been brought to the stock position P4, sets the FRONT signal and the REAR signal to "H" for 50 msec in step S38, and applies an electromagnetic brake to the motor 190A. ,
Stop disk transfer.

Subsequently, the controller 300 moves the UD cams 197 and 82 to the position DO in steps S39 to S43.
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 S40
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 flag P.P. PUL
The counting of the SE signal is started, and the step S42 waits until the count value becomes "47". Count value is "47"
Then, in the controller 300, the UD cam is in the position UP-
It is determined that the P. 2 has been brought to 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-
Loading plate cam 186
Is the loading plate 104, 1 by the cam 186B.
40 in the open position POS. Spread to 3, belt 10
7, 142 are separated from the disk peripheral edge De (see FIG. 25).
reference). Finally, the controller 300 makes a step S44.
By M. Set FLAG to "STOCK",
Return to the main routine shown in 9.

<< Operation for EJECT key >> Next, EJEC
The operation when T key-1 to EJECT key-4 is operated will be described. The general operation of the EJECT key will be described. When the EJECT key having the same number as the current stocker position is operated, the controller 300 opens the door and holds the disc at the stock position or the reproduction position at the eject position. Come on. When there is no transfer disk, the controller opens and closes only the door in response to the operation of the EJECT key. On the other hand, when the EJECT key having a different number 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.

<< Operation for EJECT key in stock state >> First, in the stock state, EJECT key
The operation when is operated will be described. EJECT -1
When any one of ˜EJECT key-4 is operated, the controller 300 sets the constant m to “1” to “4” by corresponding steps S7 to S10, respectively, and then, FIG.
Proceed to the flowchart JOB EJECT shown in 7. 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. If they are the same, the controller 300 first moves the UD cams 197 and 82 from the position UP-2 to the DOWN-1 in steps S90 to S93.

That is, the controller 300 operates in step S9.
P. 0. The DWN signal is set to "H" and the P.P. Wait for the "L" change of the REF signal. P. DW
When the N signal is set to "L", the optical mechanism vertical movement mechanism 1008
Drive motor 190B (FIG. 16) is driven to rotate and UD
The cams 197 and 82 are moved toward the DOWN position. Bar P. When the REF signal changes to "L", the controller 3
00 is a P.P. Counting of the PULSE signal is started, and the count value is "1" in step S93.
Wait until it becomes 1 ”. When the count value becomes“ 11 ”,
The controller 300 determines that the UD cam has been brought to the position DOWN-1, and the P.D. 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. When the UD cam is brought to position DOWN-1, the loading plates 104, 140 are springs 16.
The disk holding position POS. With the disc closed up to 2 and holding the disc, the lock sleeve 62 is brought to the unlocked position (see FIGS. 33 and 37).

Next, the controller 300 operates in 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 S10.
0 for S. Wait for the CLOSE signal to change to "L". F
When the RONT 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 disk is brought to the position P2 shown in FIG. 12, the shutter-147 is opened about half due to the pressing of the disk, and the S.S. The CLOSE signal changes to "L". Then, the controller 300 sends the FRONT signal and the REAR signal to 50 in step S97.
Set to "H" for msec and electromagnetic blur to motor 190A.
In order to prevent the transfer disk from engaging with the door 11, the transfer of the disk is temporarily stopped.

Subsequently, the controller 300 moves the UD cam to the position DOWN-1 in steps S98 to S104.
To DOWN-2 to open the door 11.
First, the controller 300 sets the P. UP
The signal is set to "H", and the signal P.P. Wait for "H" change of REF signal. P. When the UP signal is set to "H", the optical mechanical up-and-down mechanism 1008 causes the drive motor 1
90B (FIG. 16) is driven to rotate, and UD cams 197, 8
2 is moved in the UP position direction. Bar P. When the REF signal changes to "H", the controller 300 makes a step S1.
00 for P. The UP signal is set to "L", and the P. DWN
The signal is set to "H", and at step S101, the signal P.P. REF
Wait for signal "L" change. Therefore, the optical mechanism vertical mechanism 1
In 008, the drive motor 190B is reversely driven to move the UD cams 197 and 82 toward the DOWN position. Bar
P. When the REF signal changes to "L", the controller 30
0 is bar P. The counting of the PULSE signal is started, and the process waits for the count value to reach "32" in step S103.
In addition, the reason why the UD cam was once moved in the UP position direction is
When moving from UP-2 to the DOWN-1 (or DOWN-2) position, This is to make the count start conditions of the PULSE signal match.

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, 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 lock sleeve 62 is brought to the locked position as described above (see FIGS. 32 and 36), and the door 11 is opened (see FIG. 42). ).

Subsequently, the controller 300 restarts the disk transfer, so in step S105, the FRONT
The signal is set to "H", and the step S106 waits for the IN signal to change to "H". When the FRONT signal becomes "H", the disc transfer mechanism 1001 moves the disc D toward the front of the apparatus while rotating it counterclockwise. The loading plates 104 and 140 are gradually closed according to the amount of the disk protruding from the disk insertion opening 1A.
When the disc is ejected up to the position P1 shown in, the IN signal changes to "H". Then, the controller 300 determines that the disc has been brought in immediately before the eject position, and in step S107, the FRONT signal and R
The EAR signal is set to "H" for 50 msec and the motor 19
An electromagnetic brake is applied to 0A to stop the disk transfer. The disk slightly overruns due to the urging force of the spring 160 applied to the loading plates 104, 142 and its inertia, and as shown in FIG. 14, the loading plates 104, 142. The disc receiving position POS. It is brought to the eject position P5 that closes to 1. And controller 30
0 is D. 0 in steps S108 and S109. FLAG
(N), M.A. After setting FLAG to "0" and "EJECT" respectively, the process returns to the main routine shown in FIG.

On the other hand, if the values of m and n are not the same in step S71 of FIG. 51, the controller 300 determines in step S72 the output of the optical sensor-163H (bar D.
LOCK) is "L" (the lock sleeve 62 is brought to the lock position), and "L"
If so, the stocker 1011 is moved to the position POS (m) designated by the eject key in step S73. For example, when the eject key-4 is operated, m
Is set to "4", so move the stocker to position PO
Move to S (4). When the stocker is brought to the designated position, the controller 300 sets the constant n to the value of m in step S74, and the D.D. FL
It is checked that AG (n) is "1" (with disk). In the case of "1", the controller 300 proceeds to step S90 (FIG. 52) and thereafter brings the disk at the stock position to the eject position as described above.

On the other hand, D. If FLAG (n) is "0" (no disc), the controller 300 performs step S76.
~ By S80, move the UD cam from position UP-2 to DOWN
Move to -2. That is, the controller 300 sets the P.P. Set the DWN signal to "H", and step S7
7 at bar P. Wait for the REF signal to change to "H".
P. When the DWN signal becomes "H", the optical mechanism vertical movement mechanism 1
In 008, the drive motor 190B is reversely driven to move the UD cams 197 and 82 toward the DOWN position. By moving the UD cam, the bar P. When the REF signal changes to "H", the controller 300 determines that the P.P. P
The ULSE signal starts counting, and waits for the count value to reach "32" in step S79.

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. 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. Close to 1 and open shutter-147. The door 11 is brought to the open position by pressing the UD cam 82. Controller 30
0 is subsequently set to D.D. by steps S81 and S82. FLAG
(N), M.A. FLAG is set to "0" and "EJECT", respectively, and the process returns to the main routine shown in FIG.

<< Disk Lock Miss / Retry Operation >> On the other hand, in step S72 of FIG. LOCK is “H”
In the case of (the lock sleeve 62 does not rise to the lock position), the controller 300 proceeds to the flow chart shown in FIG. (See) and bring it to the stock position again. First, the controller 300 proceeds from step S72 to step S110, checks the number of retries, and then executes steps S90 to S94 described above.
(Step S11) which is the same step as (see FIG. 52)
1 to S115, the UD cams 197 and 82 are moved to the position UP-
2 to DOWN-1, the loading plates 104 and 140 are moved to the disk holding position PO.
S. 2 to move the lock sleeve 62 to the unlock position. The details are omitted because they overlap.

Subsequently, in steps S116 to S124, the controller 300 temporarily moves the disc, which has been displaced, to the reference position and then brings it to the stock position again. That is, the controller 300 operates in step S1.
In step 16, the FRONT signal is set to "H", and step S117
By S. Wait for the CLOSE signal to change to "L".
When the FRONT signal is set 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, so that the friction belt 142 moves the disk. , It rolls counterclockwise and is transported toward the front of the device. When the disk is brought to the reference position P2 shown in FIG. 12, the shutter is pressed by pressing the disk-1.
47 is about half open, and S. The CLOSE signal changes to "L". Then, the controller 300 performs step S1.
The FRONT signal is set to "L" by 18 and RE
The AR signal is set to "H", and S.S. C
Wait for the LOSE signal to change to "H".

The shutter 14 is moved by the reverse movement of the disk D.
7 closed again 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 disc has been brought to the vicinity of the stock position, changes the pulse of the REAR signal by 30% duty in step S122, and changes the count value in step S123. Wait for "167". When the REAR signal is set to 30% duty and the disc transfer speed is reduced, and the count value becomes "167", the 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 UD cam 19 through steps S125 to S129 which are the same steps as steps S39 to S43 (see FIG. 50) described above.
7, 82 are moved from the position DOWN-1 to the UP-2 and the loading plates 107, 142 are moved to the open position PO.
S. 3 (see FIG. 13), and also lock sleeve
The knob 62 is raised and the above step S72 (see FIG.
Return to 1). The details of steps S125 to S129 will be omitted because they overlap.

<< Disk Lock Miss Eject Operation >>
On the other hand, even if the above-mentioned retry operation is repeated three times,
D. If the LOCK signal does not become "L",
The la 300 proceeds to step S90 of FIG. 52 through step S110 of FIG. 53 to bring the disc to the eject position.

<< 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 causes the constant m to change from "1" to the constant m through corresponding steps S7 to S10 (FIG. 49).
Set to "4", steps S70 (FIG. 51), S13
0 (FIG. 54) to step S131, where m and n
Check if the values of are the same. If they are the same,
LA 300 is the above steps S76 to S80 (FIG. 51).
By the same steps S132 to S136 as described above, the UD cams 197 and 82 are moved from the position UP-2 to the DOWN-2, the optical mechanism 1006 is lowered to the down position, and the door 1
Open one. Then, the controller 300 brings the disc to the eject position P5 through the same steps S137 to S139 as the above-described steps S105 to S107 (FIG. 52), and the D.D. F
LAG (n), M .; FLAG is "0" and "EJEC" respectively
After setting to T ″, the process returns 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.
5 and proceeds to step S150 to S168 (FIG. 53) which are the same as steps S111 to S129 (FIG. 53) described above.
The D cams 197 and 82 are moved from the position UP-2 to the DOWN-1, and (2) the disk D at the reproduction position is brought to the stock position, and (3) the UD cams 197 and 82 are moved to the position DOWN.
After moving from N-1 to UP-2, the process proceeds to step S72 shown in FIG. After confirming the LOCK signal, the stocker is moved to the designated position POS (n), and the selected disc is brought to the eject position.

<< 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 S7 to S10 (FIG. 49) corresponding thereto.
Set to "4", steps S70 (FIG. 51), S13
0 (FIG. 54) through steps S170 and S of FIG.
Proceeding to step 171, it is checked whether the values of m and n are the same.

In the case of the same, the controller 300 performs a flag check in step S172 whether the UD cam is in the position DOWN-2. Move to 1. That is, the controller 30
0 is P. 0 in step S173. The UP signal is set to "H", and at step S174, the flag P.P. Counting of the PULSE signal is started, and the count value is "2" in step S175.
It waits until the P.UP signal is set to "H", so that the optical mechanical up-and-down mechanism 1008 drives the drive motor 19.
0B (FIG. 16) is driven to rotate, and UD cams 197 and 82
Is moved in the UP position direction. When the count value reaches “21”, the controller 300 moves the UD cam to the down position.
−1, it is determined that the P.I. UP signal and P.P. Set the DWN signal to "H" for 50 msec, apply electromagnetic brake to the motor 190B, and
The movement of the D-cam is stopped, and the main lever shown in FIG.
Return to Chin. UD cams 197 and 82 are in position DOWN-1
The door 11 is closed by the urging force of the spring 13 (see FIG. 43). When the disc is present at the eject position, the door 11 is engaged with the lower surface of the disc and is in a half-open state until the disc is taken out or loaded into the apparatus.

On the other hand, when the UD cam is at the position DOWN-1, the controller 300 starts the above-mentioned steps S98-.
Step S consisting of the same steps as S104 (FIG. 52)
177 to S183 move the UD cams 197 and 82 to the position DOWN-2 and open the door 11. Returning to the main routine shown in FIG. The details are omitted because they overlap.

On the other hand, if the values of m and n are not the same in step S171, the controller 300 proceeds to step S190 shown in FIG. 57 to check whether the UD cams 197 and 82 are in the position DOWN-2. To do. UD
If the cam is in position DOWN-2, controller 30
0 indicates that the UD cam 1 is set by the steps S173 to S176 which are the same as the steps S173 to S176 (FIG. 56) described above.
97, 82 are moved from the position DOWN-2 to DOWN-1, and the D.I. It is checked whether the CLOSE signal is "H" (door 11 is closed). on the other hand,
If the UD cam is not in position DOWN-2, the controller 300 determines that the UD cam is in position DOWN-1,
Jump from steps S191 to S194, and then step S
Proceed to 195. D. When the CLOSE signal does not become "H", the controller 300 determines that the disc exists at the eject position and the door 11 does not close, and continues to wait for the disc to be taken out by the operator. This is because if the disc in the device (in the stocker) is ejected without ejecting the disc in the eject position, the disc in the eject position is dropped outside the device and damages the disc.

D. CLOSE signal is "H" (door closed)
When the controller 300 confirms, the controller 300 moves the UD cams 197, 82 from the position DOWN-1 to UP-2 and loads them by performing steps S196 to S200 which are the same steps as steps S39 to S43 (FIG. 50). The plates 107 and 142 are placed in the open position POS. 3 (Fig. 1
3), the process returns to step S72 (FIG. 51) described above, the stocker is moved to the selected position, and the selected disc is ejected.

<< Read Command Corresponding Operation >> On the other hand, when a read command is output from the externally connected computer device 303 (FIG. 48), the controller 300 operates as shown in FIG.
9 main routine from step S6 to step S11
Then, the mechanism control is performed as described above, the selected disc D is brought to the reproducing position, the signal processing circuit 307 and the servo circuit 308 are controlled, and the specified file is stored. Start reading. The detailed description of the operation is omitted. The read signal output from the optical pickup 2 is input to the signal processing circuit 307 via the RF amplifier 309, subjected to EFM demodulation, deinterleave, error correction, etc., and then the interface circuit 302.
The data is supplied to the computer device 303 externally connected via the, and predetermined data processing is performed. When the reading of the specified file is completed, the controller 300 controls the signal processing circuit 307 and the servo circuit 308 to stop, and the M.M.
Set FLAG to "STAND-BY" and
Return to the main routine shown in.

The present invention is not limited to the above-mentioned embodiments, and various modifications can be made. For example, according to the above-described embodiment, the spring 13 for urging the door 11 in the closing direction is formed by the coil spring, but the present invention is not limited to this, and may be formed by another spring member such as a leaf spring. good. Further, the UD cam 82 that moves the optical mechanism 1006 up and down moves the position DOWN-1 to DOWN-2 to press the connecting portion 13B of the spring 13 to open the door 11, but other independent devices such as a plunger. The door may be opened by moving the spring in the door opening direction by the door opening / closing mechanism.

[0102]

As described above, according to the present invention, since the door is opened to the outside of the apparatus by moving the spring means in the direction in which the door is opened, the operator can forcibly close the door. It is possible to prevent the door from being damaged.

[Brief description of the 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 a JOB EJECT.

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.

[Explanation of symbols]

 1 Front Panel 1A Disc Insertion Portion 2 Front Chassis 3 Top Cover 4 Bottom Cover 11 Door 11A Spring Hooking Part 11A 12 Reinforcing Plate 13 Coil Spring 13C Connecting Part 15A, 15B, 16 Axis 20 Main Chassis 41 Stocker Main Body 50 Wedge Member 61 Lock base 62 Lock sleeve 63 Lock cam 64 Lock release pinion 65 Acquam 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 First coil spring part 131 Second coil spring part 142 Friction belt 160 Spring 163A to 163I Optical sensor- 80 Motor Chassis 190A, 190B, 190C Drive Motor 191A Worm Member 191A1 Worm 191A2 Gear 192, 193 Emergency Gear 200 Mechanical Chassis 210 Optical Head 211 Spindle Motor 214 Damper 222 Turnable Table 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 Playback device 1001 Disc transfer mechanism 1002 Drive side disc guide portion 1003 Fixed side disc guide portion 1004 Pulley drive mechanism 1005 Loading plate opening / closing mechanism 1006 Optical mechanism 1 08 Lift mechanism 1009 clamper 1010 clamper holding mechanism 1011 stocker 1012 stocker lift mechanism 1013 disk lock mechanism 1014 disk erroneous insertion prevention mechanism 1015 door opening and closing mechanism 1016 drive control circuit D Disk Du disk top Dl lower disk surface De disc periphery Ds spindle hole

Claims (3)

[Claims] 1. A disc insertion opening formed in a disc reproduction device, into which a disc is directly inserted, a door rotatably supported outside the disc reproduction device and capable of opening and closing the disc insertion opening, and the door. And a door opening / closing means that is engageable with the spring means, moves the spring means in a direction in which the door opens, and opens the door to the outside of the device. Disc playback device. 2. A first coil spring portion, one end of which is connected to the disc reproducing device, one end of which is connected to the other end of the first coil spring portion, and the other end of which is connected to the door. 2. The disc reproducing apparatus according to claim 1, wherein the door opening / closing means moves one end of the second coil spring portion in a direction in which the door is opened. 3. The door opening / closing means has a first movement section for moving an optical mechanism for reproducing a disc between an up position enabling disc reproduction and a down position separating from the disc, and 2. The disc reproducing apparatus according to claim 1, further comprising a UD cam which is movable in a second movement section for moving the spring means in a direction in which the door is opened while keeping the optical mechanism in the down position. apparatus.