JP3418006B2 - Playback device for recording media - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing device for a recording medium such as a mini disc.

[0002]

2. Description of the Related Art Conventionally, a reproducing apparatus for a recording medium having a so-called auto change function may be provided with a magazine. For example, when the recording medium is a compact disc (hereinafter abbreviated as "CD"), a plurality of CDs are placed on trays and housed in a magazine in a stacked state. The magazine is roughly on both side walls,
A bottom plate, a back wall and a top plate are provided, and an opening for inserting / discharging a tray is provided on the front surface. A plurality of partition plates are formed on both side walls at equal intervals in the stacking direction of the trays at a pitch slightly larger than the thickness of the trays, and the trays are inserted into the grooves between these partition plates. The transport of the tray on which the CD is placed to the magazine is performed by the transport unit.

FIG. 15 is a side view schematically showing the structure of a conventional CD reproducing apparatus 201a. CD player 201
Reference numeral a denotes a magazine 202 as described above, a conveying means 203 for inserting / ejecting a CD, and a reproducing means 2 for reproducing a CD.
04 and the elevating means 205 for moving the conveying means 203 in the vertical direction. In the CD playback device 201a,
The reproducing means 204 is provided in the conveying means 203,
As the conveying means 203 is displaced up and down by the elevator means 205, the reproducing means 204 is also displaced up and down.

In the CD reproducing apparatus 201a, the reproducing means 204 is provided in the conveying means 203. Therefore, when such a CD reproducing apparatus 201a is used for a vehicle, vibrations caused by traveling of the vehicle cause the conveying means 203 to move. It is propagated to the reproducing means 204 via the recording medium and adversely affects the reproduction of the CD.
In order to reduce the vibration propagating to the reproducing means 204, even if the reproducing means 204 provided in the conveying means 203 is provided with anti-vibration measures, the conveying means 203 itself is supported by the elevating means 205 so as to be vertically displaceable. In addition, since the reproducing means 204 has a relatively large weight, it is impossible to obtain a sufficient vibration damping effect.

FIG. 16 is a side view schematically showing the structure of the CD reproducing apparatus 201b in consideration of the influence of the above-mentioned vibration. The CD reproducing device 201b is provided with the reproducing means 204 independently of the conveying means 203, and the upward / downward displacement of the reproducing means 204 due to the upward / downward displacement of the conveying means 203 by the elevating / lowering means 205 is eliminated. Anti-vibration measures are taken by floatingly supporting the reproducing means 204 in the casing of the CD reproducing device 201b. With such a configuration, it is possible to obtain a sufficient anti-vibration effect and reduce the adverse effect on the reproduction of the CD. A prior art in which such a structure of the CD reproducing device 201b is applied to a mini disk has already been proposed by the applicant of the present application in Japanese Patent Application No. 6-111466.

[0006]

DISCLOSURE OF THE INVENTION Problem to be Solved by the Invention CD shown in FIG.
In the reproducing device 201a, the reproducing means 204 and the conveying means 20
3 is integrally provided, it is possible to take out another CD stored in the magazine 202 during reproduction of the CD, or to store another CD in the storable area of the magazine 202 where the CD is not stored. It is impossible to store. If you try to do this,
However, the CD on the reproducing means 204 must be stored in or ejected from the magazine 202, which is inconvenient.

In the CD reproducing apparatus 201b shown in FIG. 16, since the reproducing means 204 and the conveying means 203 are provided independently, it is possible to perform the above operation while continuing the reproduction of the CD. Therefore, the transport means 203
Is always arranged at the insertion / ejection position facing the insertion / ejection opening of the CD. However, if the transport means 203 is always arranged at the insertion / ejection position, regardless of the number of CDs stored in the magazine 202, that is, regardless of the storage state of the magazine 202,
Since it becomes possible to insert a new CD, the CD will be taken in even if there is no storable area in the magazine 202, for example. Therefore, it causes a failure of the CD reproducing device 201b.

Further, in the CD reproducing device 201b,
Even if the magazine 202 has no storable area, the inserted CD can be played back by the playback means 204 in order to improve operability. In such a configuration,
When the CD stored in the magazine 202 is ejected and the CD being reproduced is stored in the storage-enabled area of the magazine 202, the C on the reproduction means 204 is displayed.
D is not immediately stored in the magazine 202 but is once discharged. Therefore, convenience is poor.

The CD reproducing devices 201a, 201 as described above
When 01b is used for a vehicle, it is very dangerous for the driver to perform an operation other than driving the vehicle, and it is preferable that the operation of the CD reproducing device is simple.

An object of the present invention is to provide a recording medium reproducing apparatus which is highly convenient and can prevent erroneous insertion of the recording medium.

[0011]

According to the present invention, an elevating means for moving up and down in a direction intersecting with the inserting direction of a recording medium and a recording medium guided by the elevating means are laminated in a direction parallel to the elevating direction. By including a magazine capable of accommodating a plurality of sheets in this state and a reproducing unit provided below the magazine and reproducing the recording medium, the recording medium guided by the elevating unit is transferred to the reproducing unit. A recording medium reproducing apparatus capable of inserting the recording medium in the magazine or ejecting the recording medium in the magazine during reproduction of the recording medium by the reproducing means,
A housing having an insertion / ejection slot through which the recording mediums can be inserted / ejected one by one, and when the maximum number of the recording mediums accommodated in the magazine is accommodated in the housing, other than the insertion / ejection of the recording mediums. Arranging the elevating means at a position other than the insertion / ejection position facing the insertion / ejection port, and when the number of stored articles is less than the maximum storage number, the elevating means is placed at the insertion / ejection position except for insertion / ejection And a driving unit for driving the recording medium. Further, according to the present invention, an address memory for storing an address indicating a storage position in a magazine of a recording medium being reproduced by the reproducing means, a maximum number of recording media already stored in the magazine, and an elevating means. When the recording medium stored in the magazine is ejected while another recording medium guided by is reproduced by the reproducing means, the contents of the address memory are rewritten to the address of the ejected recording medium. And a control means.

[0012]

According to the present invention, the inserted recording medium is accommodated in the magazine or loaded in the reproducing means by the elevating means which is displaced up and down in the direction intersecting with the inserting direction of the recording medium. A plurality of recording media can be stored in the magazine in a stacked state in a direction parallel to the elevating direction of the elevating means. By passing the recording medium guided by the elevating means to the reproducing means, it is possible to insert another recording medium into the magazine or reproduce another recording medium from the magazine while the recording medium is being reproduced by the reproducing means. It becomes possible to discharge. Such an operation can be performed without stopping the reproduction of the recording medium, and the convenience of the recording medium reproducing apparatus can be improved.

The elevating means, the magazine, and the reproducing means are arranged in a housing having an insertion / ejection slot through which recording media can be inserted / ejected one by one. The elevating means is controlled by the driving means as follows. That is, when the number of recording media stored in the magazine is the maximum number, the elevating means is arranged at a position other than the insertion / ejection position facing the insertion / ejection opening of the housing except when the recording media are inserted / ejected. To be done. When the number of recording media stored in the magazine is less than the maximum number of storage, the elevating means is arranged at the insertion / ejection position facing the insertion / ejection opening of the housing except when the recording media are inserted / ejected. Therefore, when the number of stored magazines is the maximum number, it is possible to prevent the elevating means from guiding the recording medium to the magazine or the reproducing means.
Failure can be prevented in advance.

[0014]

An address memory for storing an address indicating a storage position in the magazine of the recording medium being reproduced by the reproducing means and a control means for controlling the address memory are provided. The address memory is controlled by the control means as follows. Controlled by. That is, when the maximum number of recording media stored in the magazine has already been stored and another recording medium guided by the elevating means is being reproduced by the reproducing means, the recording medium stored in the magazine is ejected. Then, the content of the address memory is rewritten to the address of the ejected recording medium. Therefore, the recording medium that is being reproduced is not once ejected from the housing when the reproduction is completed and the recording medium is stored in the magazine.
It is directly stored in the storage position of the newly-storable magazine stored in the address memory. Therefore, the convenience of the recording medium reproducing apparatus can be improved.

[0016]

1 is a plan view of a mini disc (hereinafter abbreviated as "MD") reproducing apparatus 1 according to an embodiment of the present invention with a top plate removed, and FIG. 2 shows the MD reproducing apparatus 1 1 is a cross-sectional view taken along the section line AA of FIG. 1, and FIG. 3 is a perspective view with the top plate of the MD playback device 1 removed. The MD playback device 1 is generally configured by housing an elevating device 3, a magazine 4, a loading mechanism 86, a playback device 5, and the like inside a housing 2. Side walls 7 and 8 and a back wall 9 are erected from a bottom plate 6 of the housing 2, a top plate 85 is provided on the upper surface, and an MD is provided on the front surface.
A front plate 10 having an insertion / ejection opening 12 for inserting / ejecting 11 is attached.

The lifting device 3 includes a lifting member 13 and a pair of lifting levers 14 and 15. Lifting member 1
Reference numeral 3 denotes a storage portion 16 for storing the MD 11 inserted in the MD reproducing device 1, support pieces 17 and 18 extending from the storage portion 16 to the side wall 7 side and a side wall 8 side. And a supporting piece 19. An erroneous insertion prevention lever 20 is provided on the support piece 17, and the pressing portion 22 of the lever 20 is provided on the support member 17.
The side wall 87 of No. 3 is inserted to face the storage section 16. Further, a support member 224 is erected on the side wall 7 side of the support piece 17. A switch 88 is provided on the support piece 18,
The actuator 89 passes through the side wall 87 and faces the storage section 16. Further, on the support piece 18, a light emitting diode 212a facing a magazine 4 described later and a light receiving element 2 are provided.
12b is provided with a photo interrupter 212 which is arranged with a gap.

In the erroneous insertion prevention lever 20, both ends of a spring 28 are hooked on a hooking piece 24 formed on the erroneous insertion prevention lever 20 and a hooking piece 26 formed on the support piece 17, respectively. The storage portion 16 indicated by the arrow 30a.
Spring biased in the direction. Further, since the pair of guide grooves 31 formed in the misinsertion preventing lever 20 are fitted with the pair of pins 33 provided upright on the support piece 17, the misinsertion preventing lever 20 is in the direction of the arrow 30a. And the opposite direction 30
Displacement is allowed in b.

The supporting piece 19 has a wrong insertion preventing lever 21,
Switches 36, 69, 90, motors 40, 59, gear trains 44, 63, roller pressing lever 64, etc. are provided. The wrong insertion prevention lever 21 is the wrong insertion prevention lever 2
As with 0, the pin 34 is fitted into the guide groove 32 so that the pressing piece 23 is attached to the housing portion 16 so as to project or retract, and the erroneous insertion prevention lever 2
Both ends of the spring 29 are hooked by the hooking piece 25 formed on the No. 1 and the hooking piece 27 formed on the support piece 19, respectively, and are biased by the spring in the direction of the arrow 30b. A switch 36 is provided on the other side wall 8 side of the erroneous insertion prevention lever 21. Further, a support member 225 is provided upright on the other side wall 8 side of the support piece 19.

When the MD 11 is inserted into the storage section 16, M
The erroneous insertion prevention lever 20 is pressed and displaced in the direction of arrow 30b by D11, and the erroneous insertion prevention lever 21
Is pressed and displaced in the direction of the arrow 30a, and the actuator 37 of the switch 36 causes the pressing piece 3 of the erroneous insertion prevention lever 21 to move.
When pressed by 5, the switch 36 becomes conductive. The support piece 19 is provided with a motor 40 driven by a conduction signal of the switch 36. The output of the motor 40 drives a gear 43 via a worm 42 attached to the tip of an output shaft 41, and further a gear train. After being decelerated via 44, the rollers 45 and 46 are rotationally driven in the arrow direction indicated by reference numeral 47.

The roller 45 and the gear 48 have a shaft 45a,
The roller holder 4 is rotatably supported by a roller holder 49 formed in a substantially U-shape by 48a.
9 is supported by a support piece 19 by a shaft 48a so as to be swingable. Support piece 1 via shaft 45a through shaft 48a
A roller pressure spring 52 is wound around the fixed shaft 51 provided upright on the shaft 9. The roller pressure spring 52 is connected to the roller 4
5 is attached so that the spring force acts in the direction in which it projects into the storage portion 16, as indicated by reference numeral 53. by this,
Since the roller 45 can be rotationally driven while being pressed against the MD 11 inserted into the storage unit 16, the MD 11 can be reliably fed into the storage unit 16.

Similarly, a roller for generating a spring force in a direction indicated by an arrow 56 from a shaft 46a provided upright on a roller holder 55 covering the roller 46 and the gear 54 to a shaft 54a and a fixed shaft 57. The crimp spring 58 is wound. As a result, the roller 46 also moves to the side wall 10 of the magazine 4.
4 through the through hole 50 formed in the magazine 4,
It can be rotationally driven while being pressed to D11.

The motor 59 is provided on the back wall 9 side of the support piece 19, and its output is transmitted to the gear 62 via the worm 61 attached to the tip of the output shaft 60. Further, after the speed is reduced by the gear train 63, the roller pressing lever 64
The gear 66 that meshes with the rack 65 is driven. In the long hole 92 formed in the falling piece 91 of the roller pressing lever 64,
Since the follower 93 provided upright on the support piece 19 is fitted, the displacement of the roller pressing lever 64 is represented by reference numerals 67a, 6a.
7b is regulated in the arrow direction. The rising piece 68 formed on the roller crimping lever 64 is the roller crimping lever 6
When 4 is displaced to the position closest to the back wall 9, the actuator 70 of the switch 69 is pressed. As a result, the driving of the motor 59 is stopped.

The roller crimping lever 64 is provided with an inclined portion 94, and when the roller crimping lever 64 is driven in the direction of arrow 67a, it is guided by the shaft 46a and the roller holder 5 is moved.
5 is displaced along the inclined portion 94 in the arrow direction indicated by reference numeral 56, and the roller 46 is moved from the through hole 50 to MD11.
Project to the position where it abuts against. Further, when the roller pressing lever 64 is driven in the direction of the arrow 67b, the roller holder 55 is displaced in the direction opposite to the arrow 56, and the roller 46 is moved.
Is returned to a predetermined position by the spring force of the roller pressure spring 58. At this time, the actuator 97 of the switch 90 is pressed by the roller holder 55, and the opening of the roller 46 is detected.

The roller pressing lever 64 has a positioning piece 3 again.
9 are formed, and correspondingly, on the side wall 104 of the magazine 4, a guide piece 38 is extended corresponding to each storage space 100 described later. In the guide piece 38, the guide groove 3 formed to be wider toward the lifting member 13 side.
8a. Therefore, as described above, when the roller pressing lever 64 is displaced in the direction of the arrow 67a until the switch 69 is conducted, the guide piece 39 is fitted into the guide groove 38a, and thus, when the MD 11 is inserted into or ejected from the magazine 4. It is possible to accurately position the elevating member 13 at the elevating position.

A motor 71 and a gear train 72 are provided on the bottom plate 6 below the storage portion 16. Motor 7
When 1 is driven, the output thereof is decelerated via the worm 74 and the gear train 72 attached to the output shaft 73, and then transmitted to the rack 76 of the elevating lever 14 meshing with the gear 75. The elevating lever 14 and the elevating lever 15 are connected by a connecting lever 121 at one longitudinal end of the elevating levers 14 and 15. Guide lift grooves 78, 79 are formed in the lifting levers 14, 15, respectively, and a follower 80 protruding from the support piece 18 is fitted in the guide recess groove 78, and a guide recess groove 79 is formed in the support piece 19. The formed follower 81 is fitted. By this, the lifting lever 1
By driving the motors 4, 15 in the directions of the arrows 67a, 67b by the motor 71, the lifting member 13 can be displaced up and down.

The magazine 4 is provided on the upper side of a reproducing device 5 which will be described later, and generally, three partition plates 103 are formed between a top plate 101 and a bottom plate 102 to form four storage spaces 1.
00, four MD11 can be stored. A support piece 18 is provided on the side wall 7 side of the magazine 4.
A detection plate 213 is provided between the light emitting diode 212a and the light receiving element 212b of the photo interrupter 212 provided in the above. The detection plate 213 includes
Five openings, which will be described later, are provided in accordance with the four storage spaces 100 and the playback device 5. The position of the elevating member 13 is detected based on the detection result of the photo interrupter 212.

In each storage space 100, a switch 105 is provided at a position close to the back wall 9 on one side wall 104 of the magazine 4, and an actuator 106 of the switch 105 is inserted through the side wall 104 to make the inside of the storage space 100. It projects to one side. MD11 is a storage space 10 by the roller 46.
When it is inserted into 0, the actuator 106 is pressed by the corner portion 129 of the MD 11 and the switch 105 becomes conductive.

In this way, when the storage of the MD 11 in the magazine 4 is detected, the driving of the motor 40 is stopped and the rotation of the roller 46 is stopped. Each storage space 100 is also formed with a leaf spring member 113 projecting inward of the magazine 4 on the side wall 104, and this leaf spring member 113 accommodates the casing 111 of the MD 11 stored in the storage space 100. The other side wall 108 is pressed. This prevents the MD 11 from rattling with respect to the magazine 4.

The MD 11 is constructed by housing a disc 112 capable of recording or reproducing optically and magnetically in a casing 111, and the disc 112 has a clamp plate 110 which is attracted to a turntable 134 at its center. And has this clamp plate 110
A drive hole 109 is formed in the casing 111 corresponding to the above.

Correspondingly, a leaf spring member 107 formed by cutting and raising the partition plate 103 and the bottom plate 102 is provided at the center of each partition plate 103 and the bottom plate 102, and the plate spring member 107 enters from the drive hole 109 of the inserted MD 11. , The clamp plate 110 attached to the center of the disk 112 is pressed upward in FIG. This prevents the disc 112 in the casing 111 from rattling.

FIG. 4 is an exploded perspective view of the reproducing device 5.
The reproducing device 5 is roughly configured to include a holder 131, a lifting mechanism 132, and a reproducing mechanism 133. In the reproducing mechanism 133, the turntable 134 is fitted into the driving hole 109 with respect to the MD 11 loaded in the reproducing mechanism 133 by the holder 131, the clamp plate 110 is sucked to rotate the disk 112, and the pickup is performed. The recorded contents recorded on the disk 112 are read out by the 135, thereby reproducing the recorded contents.

The holder 131 can be displaced by the elevating mechanism 132 between a raised position shown by a solid line in FIG. 2 and a lowered position shown by an imaginary line. In the raised position, the lifting member 1
The MD 11 in 3 can be taken in or ejected, and in the lowered position, the MD 11 can be loaded on the turntable 134 to be reproducible. Holder 131 is MD1
1 is composed of a substantially U-shaped frame body 141 surrounding the
Guide pins 144, 145; 146, 147 are erected on both side walls 142, 143 of the frame body 141, respectively. A guide piece 148 similar to the guide piece 38 is formed on the side of the side wall 143 on the elevating member 13 side, and a through hole 149 corresponding to the through hole 50 is formed. Further, a leaf spring member 150 corresponding to the leaf spring member 113 is formed on the side wall 142, and the MD1 taken into the frame 141 by the leaf spring member 150.
The casing 111 of No. 1 is held without rattling.

The raising / lowering mechanism 132 generally includes the lever 15
1, the motor 152, the gear train 153, and the regulation plate 154.
˜156. Regulation plate 154-1
56 is erected from the bottom plate 6, and the regulation plates 154-
Guide grooves 164, 165; 166, 1 formed in 156
By fitting the guide pins 144, 145; 146, 147 into 67, the frame body 141 is allowed to be displaced only in the vertical direction of FIG.

The guide pins 144 and 145 are also fitted into the guide grooves 161 and 162 formed in the lever 151 after being inserted through the guide grooves 164 and 165, respectively. These guide grooves 161 and 162 are formed in a direction intersecting with the guide grooves 164 to 167 formed in the vertical direction. The lever 151 is horizontal when a guide pin 168 formed on the pedestal 160 and a guide pin 169 formed on the regulation plate 154 are fitted into long holes 170 and 171 formed by extending in the longitudinal direction of the lever 151, respectively. Can be displaced in any direction.

A rack 173 is formed on one side surface 172 of the lever 151. In this rack 173,
The driving force from the motor 152 attached to the frame 160 is transmitted through the gear train 153. Furthermore, in the lever 151, rising pieces 174, 175 are formed near both ends in the longitudinal direction, and these rising pieces 174, 175 are limit switches 176, 177 attached to the mount 160. Actuators 178 and 179, respectively.

The motor 152 is driven and the lever 15
1 makes horizontal displacement, and when the rising piece 174 or the rising piece 175 contacts the actuator 178 or the actuator 179, respectively, the driving of the motor 152 is stopped, and thus the lever 151 moves the limit switch 1.
It can be displaced within the range of 76,177.

With the displacement of the lever 151, the guide grooves 161 and 162 guide the guide pins 144 and 145, respectively, so that the frame body 141 can be vertically displaced as described above. A switch 180 is provided at an end portion of the frame body 141 on the back wall 9 side, and this switch 180 is similar to the switch 105 in the frame body 141.
It is used to detect the presence / absence of MD11 inside.

The lever 151 also has a guide groove 16
Bias pieces 181 and 182 are attached so as to face 1, 162, respectively. The bias pieces 181 and 182 are located near both ends of the guide grooves 161 and 162, that is, the frame body 141.
A pair of abutting pieces 183 abutting on the guide pins 144 and 145 in a state where they are in a predetermined raised position or lowered position.
184 and the contact pieces 183, 184 of the lever 15
1 and the attachment piece 185 for fixing to 1. Therefore, the biasing pieces 181 and 182 hold the frame 141 in the raised position or the lowered position without rattling.

When the switch 36 detects that the MD 11 has been inserted from the insertion / ejection port 12 in the MD reproducing apparatus 1 having the above-described structure, the motor 40 is driven and the M
D11 is taken into the elevating member 13 until the completion of taking in is detected by the switch 88. After that, the motor 71 is driven in response to an input operation to an operating means (not shown), and the elevating member 13 is moved to the reproducing device 5 or the magazine 4.
Is displaced so as to face the predetermined storage space 100.

Next, the motor 59 is driven to displace the roller pressing lever 64 in the direction of the arrow 67a, the elevating member 13 is positioned by the guide piece 39, and the roller 46 is moved in the magazine 4 or in the reproducing device 5. Frame 141
It is projected inside. Thus, when the MD 11 is ready for transportation, the motor 40 is driven again and the MD 11 is moved to the magazine 4
Or it is taken into the frame 141. Switch 105
Alternatively, when it is detected by the switch 180 that the motor has been taken up to a predetermined take-in position, the motor 40 is stopped, and when reproduction is performed, the motor 152 is driven and the MD 11 is loaded at a predetermined reproduction position. It

The MD 11 which has been reproduced has a predetermined storage space 100 in the magazine 4 in response to the input operation and the like.
It is stored inside or is inserted / exhausted by the reverse operation of the above.
It is discharged from 2 to the outside.

FIG. 5 is a perspective view for explaining the operation of the shutter 220 in conjunction with the vertical movement of the vertical movement member 13. 5 to 7, only the operation on the side provided with one lever 214 will be described, but the operation on the side provided with the other lever 215 is also the same.

With reference to FIGS. 1 and 5, the lifting device 3, the magazine 4, the loading mechanism 86, and the reproducing device 5 described above are assembled to the chassis 211, and the housing 2 is further assembled.
Covered with. A shutter 220 facing the rear side of the front plate 10 is provided in front of the chassis 211. Shutter 2
Reference numeral 20 denotes an insertion / ejection port 2 corresponding to the insertion / ejection port 12 of the front plate 10.
23 is formed. Side wall 7 of housing 2 of shutter 220
There are two guide grooves 232, 2 on the side wall 220a facing the
33 is formed, and the guide pins 226 and 227 provided so as to project from the chassis 211 are connected to the guide grooves 232 and 232.
233 respectively. Guide grooves 232, 233
Are formed so as to extend in the vertical direction of the lifting member 13. A side wall 220b of the shutter 220 that faces the side wall 8 of the housing 2.
Two similar guide grooves are also formed on the chassis 21.
The guide pins 228 and 229 provided so as to project from 1 are fitted in the guide grooves, respectively.

The shutter 220 opens and closes the insertion / ejection port 12 of the front plate 10 in association with the vertical displacement of the vertical member 13. To the side walls 211a and 211b of the chassis 211, which face the side walls 7 and 8 of the housing 2, levers 214 and 215 are swingably attached by pins 218 and 219, respectively. Two guide grooves, both of which will be described later, are formed in the vicinity of both ends of the levers 214 and 215 so as to extend in the longitudinal direction, and pins 221 and 222 protruding from the shutter 220 are fitted in one guide groove, respectively. In the other guide groove, the pin 21 protruding from the support members 224 and 225 is inserted.
6 and 217 are fitted respectively. As a result, the shutter 220 opens and closes the insertion / ejection port 12 of the housing 2 in conjunction with the vertical displacement of the vertical member 13.

On the side wall 220a of the shutter 220 facing the one side wall 7 of the housing 2, as described above, the lifting member 1 is provided.
Two guide grooves 232, 233 are provided along the vertical direction of the chassis 3, and the chassis 2 is inserted in the guide grooves 232, 233.
Two guide pins 226 and 227 protruding from 11 are fitted respectively. A side wall 220a of the shutter 220,
The lever 214 is disposed between the elevating member 13. The lever 214 is a side wall 211 a of the chassis 211.
Further, it is swingably attached by a pin 218.
As described above, the lever 214 is provided with the two guide grooves 230 and 231 extending in the longitudinal direction at both ends thereof, and the guide grooves 230 and 231 are provided in the guide grooves 230 and 231.
The pin 216 protruding from the side wall 22 of the shutter 220
Pins 221 projecting from 0a are respectively fitted.

For example, as shown in FIG.
3 is placed in the storage position of the second stage from the top of the magazine 4 as a reference state, and at this time, the storage unit 1 of the lifting member 13
6 is set so as to face the insertion / ejection opening 12 of the front plate 10. Insert / eject port 12 of front plate 10 and insert / eject port 22 of shutter 220
3 coincides with each other, and the insertion / ejection opening 12 is open.

When the raising / lowering member 13 is lowered as shown in FIG. 6, the pins 216 provided on the raising / lowering member 13 and the pins 221 provided on the shutter 220 are fitted into the respective pins 216 and 221. It moves along the guide grooves 230 and 231. At this time, since the guide pins 226 and 227 provided on the chassis 211 are fitted into the guide grooves 223 and 233 of the shutter 220, the shutter 220 can move only in the vertical direction, as described above. When the raising / lowering member 13 is lowered, the shutter 220 is raised. When the shutter 220 moves up, the insertion / ejection port 223 of the shutter 220 and the insertion / ejection port 12 of the front plate 10 do not coincide with each other, whereby the insertion / ejection port 12 is closed.

On the contrary, when the elevating member 13 is raised as shown in FIG. 7, the pins 216 and 221 move along the guide grooves 230 and 231 as in the case of the above-described lowering, and the shutter is released. 220 descends. Shutter 22
When 0 is dropped, the insertion / ejection port 223 of the shutter 220 and the insertion / ejection port 12 of the front plate 10 do not coincide with each other, whereby the insertion / ejection port 12 is closed.

FIG. 8 is a block diagram showing an electrical configuration of the MD reproducing device 1. The MD playback device 1 includes a control device 241 that controls the overall operation of the MD playback device 1. The control device 241 includes an operation panel 242, a memory 243, and a display in addition to the lifting device 3, the magazine 4, and the playback device 5 described above. The device 244 is connected. The operation panel 242 is provided with an eject button designated by an operator, a designation button, a store (store) button, and the like, and the eject button stores the MD in reproduction or the magazine 4. An instruction to take out the MD is given.
From the designated button, 4 MDs at the time of taking out
When the storage position (address) of the magazine 4 in which the can be stored is instructed, for example, when "1" is instructed from the designation button and the eject button is instructed, the MD stored in the "1" storage position of the magazine 4 is taken out. To be done. From the store button, a special operation instruction described later is performed.

The memory 243 stores the address indicating the storage position in the magazine 4 of the MD being reproduced by the reproducing device 5. On the display device 244, the presence / absence of a stored MD is displayed for each storage position, for example, 1, 2,
Displayed as 3,4. Further, the MD being reproduced is displayed in a display color different from that of other MDs, for example.

FIG. 9 is a diagram showing addresses set in the magazine 4 and the holder 131 of the reproducing apparatus 5. Addresses are sequentially set in the magazine 4 from the bottom, N1, N2, ..., Nmax, and Nmax + 1 is set in the holder 131.
And the address is set. In the present embodiment, since four MDs can be stored in the magazine 4, "1"-
The address “4” is set in magazine 4 and holder 13
An address of "5" is set in 1.

The detection plate 213 is provided with five openings 245a to 245e depending on the storage position of the magazine 4 and the raised position of the holder 131 of the reproducing device 5. Light emitting diode 2 of the photo interrupter 212
The detection plate 21 is provided between the light receiving element 212b and the light receiving element 212b.
When 3 passes, the output signal level from the light receiving element 212b changes. For example, the uppermost storage position (that is, the position of the address Nmax of the magazine 4) is set as a reference position, and the ascending / descending operation is performed based on the number of changes in the output signal level from the light receiving element 212b and the ascending / descending direction of the elevating device 3. The position of the member 13 in the magazine 4 and the reproducing device 5 can be determined.

10 and 11 show the memory 243.
It is a figure which shows the store state of. The memory 243 is shown in FIG.
M of "1" or "0" indicating the presence or absence of MD shown in 0
The D presence / absence data and the reproduction MD data indicating the address of the MD being reproduced shown in FIG. 11 are stored in different memory addresses of the memory 243. Memory addresses A1 to A
k and Ak + 1 correspond to the addresses indicating the storage position of the magazine 4 and the holder 131 of the reproducing device 5 described above, and data indicating the presence / absence of MD is stored in each memory address. For example, memorized as "0" or "1",
“0” indicates that there is no MD, and “1” indicates that there is MD. At memory address Am, playback M
D data is stored. In the present embodiment, the reproduced MD data is rewritten in the case described later.

FIG. 12 is a flow chart showing the operation of the MD reproducing apparatus 1. 13 and FIG.
FIG. 4 is a diagram showing the operation of the MD reproduction device 1 in stages. At step a1, a variable Ni representing the number of inserted MDs
Is initialized to 0. At step a2, it is determined whether the MD has been inserted. When inserted, step a3
Then, the variable Ni is set to Ni + 1. At step a4, when the inserted MD is the first one as described above, the address N1 of the magazine 4 shown in FIG. 13A is assigned and the MD presence / absence data “1” is assigned.
Is registered in the memory 243 as.

At step a5, it is judged whether or not the variable Ni is the maximum number of stored sheets Nmax, and if it is Nmax, the routine proceeds to step a7. If it is not Nmax, the routine proceeds to step a6, where the storage portion 16 of the elevating member 13 is arranged at a position facing the insertion / ejection opening 12 of the front plate 10, and the insertion / ejection opening 223 of the shutter 220 and the front plate 10 are arranged.
Is inserted and opened.

MD playback device 5 stored in magazine 4
The reproduction by is performed as follows. For example, as shown in FIG. 13 (1), MD (1)
~ When four MDs of MD (4) are inserted, M
When attempting to reproduce D (1), the MD (1) is arranged at the reproduction position of the reproduction device 5, as shown in FIG. 13 (2). In addition, other Ms stored in other magazines 4
When attempting to reproduce D (2) to MD (4), the desired MD is arranged at the reproducing position of the reproducing device 5 after the MD (1) being reproduced is accommodated at the accommodating position of the address N1 of the magazine 4. To be done.

When Ni = Nmax in step a5, in step a7, the housing portion 16 of the lifting member 13 is placed.
Is arranged at a position other than the insertion / ejection position facing the insertion / ejection opening 12 of the front plate 10, and the insertion / ejection opening 12 is provided with the shutter 220.
Closed by. At step a8, it is determined whether or not the store button on the operation panel 242 is instructed. When the store button is instructed, step a9
If not instructed, a predetermined operation based on an instruction from another button is executed. At step a9, the housing portion 16 of the elevating member 13 is arranged at the insertion / ejection position, and the insertion / ejection opening 12 of the front plate 10 is opened by the shutter 22.
It is opened by the insertion / ejection port 223 of 0. Step a10
Then, the MD is inserted. In step a11, the variable Ni is set to Nmax + 1. At step a12, MD presence / absence data "1" is registered in the memory address Ak + 1. At step a13, reproduction of the inserted MD by the reproduction device 5 is started. Step a
In 14, the storage portion 16 of the elevating member 13 is arranged at a position other than the insertion / ejection position, and the insertion / ejection opening 1 of the front plate 10 is provided.
2 is closed by the shutter 220.

At step a15, it is judged whether or not MD ejection is instructed, and if MD is instructed, the routine goes to step a16. At step a16, it is judged if the instructed MD variable Ni to be discharged is Nmax + 1. If it is Nmax + 1, the process proceeds to step a17, and if it is not, the process proceeds to step a21. At step a17, the reproduction of the MD is stopped. At step a18, it is judged whether or not the reproduction is stopped. When the reproduction is stopped, the operation goes to step a19 and the MD is ejected. In step a20, the memory address Ak + 1
Registration is invalidated. That is, the MD presence / absence data “0” is registered. When the operation of step a20 ends, the process returns to step a7.

The MD to be discharged in step a16 is N
If it is determined that the value is not max + 1, the process proceeds to step a21, and the MD of Nj (j = 1 to max) is ejected. For example, as shown in FIG. 14 (1), the MD (3) stored in the address N3 of the magazine 4 is ejected.
At step a22, the registration of the memory address Aj is invalidated. That is, the MD presence / absence data “0” is registered in the memory address A3. At step a23, the reproduction MD data stored at the memory address Am is changed. As shown in FIG. 11, before the change, Nmax +
After the data stored as 1 is changed by the process of step a23, it is rewritten as Nj. Step a23
When the processing of (1) is completed, the processing returns to step a7.

When the MD (5) inserted in step a10 is to be stored by performing the processing of step a23 described above, the MD (5) is temporarily stored as shown in FIG. 14 (2). It is possible to store directly in the address N3 of the magazine 4 without discharging.

As described above, the MD reproducing apparatus 1 of this embodiment
Since the reproducing device 5 and the elevating device 3 are independently provided, another MD is inserted into the magazine 4 without stopping the reproduction while the reproducing device 5 is reproducing the MD, or It is possible to eject another MD.

When the number of magazines 4 accommodated is 4, the accommodating portion 16 of the elevating member 13 faces the insertion / ejection position 12 of the front plate 10 except when the MD is inserted / ejected. The shutter 22 is arranged at a position other than
The insertion / ejection opening 12 is closed by 0. On the other hand, when the number of magazines 4 stored is less than 4, the storage portion 16 of the elevating member 13 is arranged at the insertion / ejection position facing the insertion / ejection opening 12 of the front plate 10 except when the MD is inserted / ejected. At the same time, the insertion / ejection opening 223 of the shutter 220 opens the insertion / ejection opening 12. In this way, the position of the elevating member 13 is selected according to the number of magazines 4 to be stored, and the insertion / ejection opening 12 is opened and closed. Therefore, when the number of magazines 4 to be stored is maximum, a new MD can be inserted. Can be prevented,
It is possible to prevent the new MD from being guided to the magazine 4 or the reproducing device 5.

Further, four MDs are stored in the magazine 4, and the fifth M is stored by the special operation as described above.
When D is loaded into the playback device 5 and is being played back, if one of the four MDs stored in the magazine 4 is ejected and the MD being played is to be loaded, It is possible to store the MD in the storage position of the magazine 4 that can be stored by the above-mentioned discharge without temporarily discharging the MD.

Therefore, the convenience of the MD reproducing apparatus 1 is remarkably improved, and it is possible to reduce the failure due to the incorrect insertion of the MD.

[0066]

As described above, according to the present invention, a desired recording medium is ejected from the recording medium stored in the magazine or the recording medium is stored in the magazine even during reproduction of the recording medium. This makes it possible to improve the convenience because the reproduction of the recording medium is not interrupted.

Further, when there is no room for accommodating the recording medium in the magazine, it is possible to prevent the insertion of a new recording medium, and it is possible to prevent a failure due to an erroneous insertion.

Furthermore, when the maximum number of recording media is stored in the magazine and the recording medium is ejected from the magazine while another recording medium is loaded for reproduction. The recording medium can be stored in the magazine without being ejected, and the convenience can be improved.

[Brief description of drawings]

FIG. 1 is a plan view of an MD reproducing apparatus 1 according to an embodiment of the present invention with a top plate removed.

2 is a cross-sectional view of the MD playback device 1 taken along the line AA in FIG.
It is sectional drawing seen from.

FIG. 3 is a perspective view of the MD playback device 1 with a top plate removed.

FIG. 4 is an exploded perspective view of the playback device 5.

FIG. 5 is a shutter 2 that is interlocked with a vertical displacement of a vertical member 13.
20 is a perspective view for explaining the operation of 20. FIG.

FIG. 6 is a perspective view when a shutter 220 is lowered.

FIG. 7 is a perspective view when a shutter 220 is raised.

FIG. 8 is a block diagram showing an electrical configuration of the MD reproducing device 1.

FIG. 9: Storage space 100 for magazine 4 and playback device 5
It is a figure which shows the address set to.

FIG. 10 is a diagram showing a stored state of MD presence / absence data in a memory 243.

FIG. 11 is a diagram showing a stored state of reproduced MD data in a memory 243.

FIG. 12 is a flowchart showing an operation of the MD reproduction device 1.

FIG. 13 is a diagram showing a basic operation of the MD playback device 1 in stages.

FIG. 14 is a diagram showing the operation of the MD playback device 1 in stages.

FIG. 15 is a side view schematically showing a configuration of a conventional CD reproducing device 201a.

FIG. 16 is a CD reproducing device 20 considering the influence of vibration.
It is a side view which shows the structure of 1b typically.

[Explanation of symbols]

1 MD playback device 2 housing 3 lifting device 4 magazines 5 playback device 11 MD 12,223 insertion / ejection port 13 Lifting member 16 Storage 220 shutter 241 Control device 243 memory

Claims (2)

(57) [Claims] 1. A plurality of elevating means for moving up and down in a direction intersecting with the inserting direction of a recording medium and a plurality of recording media guided by the elevating means are stacked in a direction parallel to the elevating direction. And a reproducing means provided below the magazine for reproducing the recording medium. By passing the recording medium guided by the elevating means to the reproducing means, In a reproducing apparatus of a recording medium capable of inserting the recording medium into the magazine or ejecting the recording medium in the magazine during reproduction, a housing having an insertion / ejection slot capable of inserting / ejecting the recording medium one by one And when the maximum number of storage media of the magazine is stored in the housing, other than the insertion / ejection of the storage media,
The elevating means is disposed at a position other than the insertion / ejection position facing the insertion / ejection port, and when the number of accommodations is less than the maximum number, the elevating means is disposed at the insertion / ejection position other than insertion / ejection. A reproducing apparatus for a recording medium, comprising: a driving unit. 2. An address memory for storing an address indicating a storage position in a magazine of a recording medium being reproduced by the reproducing means, a maximum number of recording media already stored in the magazine, and an elevating means. When the recording medium stored in the magazine is ejected while another recording medium guided by is reproduced by the reproducing means, the contents of the address memory are rewritten to the address of the ejected recording medium. The reproducing apparatus for a recording medium according to claim 1, further comprising a control unit.