JPH05114217A - Player of disk exchange system - Google Patents

Abstract

PURPOSE:To prevent the stop of an apparatus in a state that a magazine has protruded when a main switch such as an ignition key or the like is cut erroneously in the action state that a movement table has protruded in a player according to a disk exchange system. CONSTITUTION:A movement table A protrudes to the outside of an apparatus together with a magazine; in this state, a roller is moved up and down by using a selection driving mechanism B; a disk inside the magazine is selected and replayed on a replay unit F. When a power-supply switch is cut as in a case when an ignition key is cut, the magazine protrudes to the outside of the apparatus. During the selection action of the disk or during the transfer action of the disk, the electric power of a battery is given continuously. After the action has been completed and the magazine has been returned to the inside of the apparatus, the supply of the electric power is cut. When the disk is clamped to the replay unit F and while it is being replayed, a power supply is cut in a state that the magazine has been housed in a position which is overlapped with the replay unit; then, the apparatus is stopped in the present state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to disc exchange in which a disc containing a disc such as a compact disc is projected to the outside of the apparatus and a disc in the magazine is selected and is reproduced and driven by a disc reproducing unit. When playing a disc player, especially when it is used in a vehicle, etc., even if the power is cut off by turning off the ignition key when the magazine is protruding and the disc is being replaced, the disc is still being replaced. The present invention relates to a disc exchange type player that prevents the operation from stopping.

[0002]

2. Description of the Related Art There is a so-called disc changer as a device for selecting and playing a plurality of discs. This disc changer is configured so that a large number of discs such as 6 or 8 can be selectively played. Since this type of disc changer has a large outer shape, it cannot be installed in a vehicle and is used in a trunk room or the like.
The operator operates an operation part called a conductor provided in the passenger compartment, and a disc is selected and pulled out from the magazine in the disc changer in the luggage compartment. The disc selected by the disc reproducing unit is played.

[0003]

However, in the above-mentioned conventional disc changer, since the main body of the changer is installed in the trunk room or the like, it is necessary to open the trunk room and eject the disc magazine every time the disc is replaced. .. Also, because the device is large,
It also occupies a large space in the luggage compartment, making space inefficiency.

Therefore, the inventor of the present invention provided a magazine storage type disc player in Japanese Patent Application No. 2-234061 which is a prior application. This allows the magazine containing the disc to be moved to a storage area that overlaps with the disc playback unit, and with the magazine moving from this movement area and protruding to the outside of the device, the disc can be pulled out from the magazine. There is something. By storing a plurality of discs such as three discs in this magazine, it becomes possible to use the disc as a compact disc changer.

However, in the configuration of the invention of this prior application, the magazine is in a state of being projected to the outside of the apparatus at the time of the disk exchange operation of pulling out the disk from the magazine or returning the disk to the magazine. Therefore, if the power supply is cut off by turning off the ignition key of the car during this disc replacement operation, if the power supply to the entire device is cut off, the device will be ejected with the magazine protruding outside the device. Will stop. If the device is stopped while the magazine is protruding, the protruding magazine becomes an obstacle, and particularly in the case of a vehicle, there is a drawback that it interferes with the operation of other operating units.

The present invention solves the above-mentioned problems of the prior art, and is intended for disc replacement operation in a magazine which is arranged in a line with a reproducing unit as described in Japanese Patent Application No. 2-234061. A disc that stops the device after it continues to operate until the magazine is housed, even if the power is cut off when the ignition key is cut while the magazine is protruding to the outside of the device. It is intended to provide a replaceable player.

[0007]

A disc replaceable player according to the present invention comprises a disc reproducing unit having a rotating mechanism for rotating the disc and a pickup facing the disc, and the disc reproducing unit from a position projecting to the outside of the device. And a moving mechanism for moving the moving table, which holds a disk magazine in which a plurality of disks are stored, and a moving mechanism for moving the moving table, and the disk provided inside the moving table. A roller for holding any one of the disks in the magazine and moving the disk between the disk reproducing unit and the disk magazine, and a selective drive mechanism for selectively moving the roller to a position in the disk magazine where the desired disk can be held. In-vehicle disc exchange type with and The layer selecting operation or the disk when the power switch is turned off while the roller is moved by the selection driving mechanism to perform the disk selecting operation or the disk is moved by the roller. It is characterized in that a switching circuit for cutting off the power after the completion of the moving operation is detected is provided.

[0008]

In the above means, the moving table is projected to the outside of the apparatus together with the magazine, and in this state, the selection drive mechanism moves the roller to select the disk in the magazine, or the roller pulls the disk out of the magazine or removes the disk. A disc transfer operation for returning the disc into the magazine is performed. When the power switch is turned off, as when the ignition key is turned off for vehicles, the magazine protrudes to the outside of the device and performs the disc selecting operation or the disc transferring operation. Power is continuously supplied, and after the operation is completed and the magazine is returned to the inside of the apparatus, the power supply is cut off. Further, for example, when the disc is clamped in the reproducing unit and the reproducing operation is performed, and the power is cut off in the state where the magazine is housed in the position overlapping the reproducing unit, the apparatus is stopped in that state.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a CD player unit equipped with a disc changer. In FIG. 1, reference numeral A
Is a moving table that supports the magazine M. A selection drive mechanism B for selecting a desired disk is mounted on the left side of the moving table A. C is the moving table A above
Is an upper unit that supports the forward and backward movement. E is a lower unit provided below the upper unit C. The upper unit and lower unit E are fixed with fixing screws,
The upper unit C and the lower unit E are vertically stacked and fixed to each other. Width 17 in this assembled state
0 mm, height 50 mm, depth 180 mm, so-called 1
It becomes a din size and can be mounted in the same mounting space as a car radio or car stereo on a car dashboard.

FIG. 2 is a perspective view showing the structure of the magazine M, and FIG. 6 is a sectional view showing the magazine loaded in the apparatus. This magazine M stores a plurality of disks D, and in the illustrated embodiment, three disks D are stored. The magazine M is composed of a case 1 and a cover 2. When the case 1 and the cover 2 are fixed to each other, the opening 3 is formed on one side, and the other three side surfaces have a closed box shape. As shown in FIG. 6, three movable plates 4, 5, 6 are housed in the magazine M. A space between the bottom surface 1a of the case 1 and the movable plate 4 is a first-stage disc storage space S1, a space between the movable plates 4 and 5 is a second-stage disc storage space S2, and a space between the movable plates 5 and 6 is 3. This is the disc storage space S3 in the tier. The uppermost movable plate 6 and the ceiling of the cover 2 are in close contact with each other. The three-stage disc storage spaces S1, S2, S3
Disk D is stored in each of the.

The movable plates 4, 5 and 6 are rotatably supported on a shaft 7 shown in FIG. The movable plates 4, 5, 6 are biased in the α direction by the biasing force of a spring (not shown). In addition, the discharge pin 4 is provided at the rear of each movable plate 4, 5, 6.
c, 5c and 6c (only 6c is shown in FIG. 2) are provided facing downward, and these are opposed to the rear portions of the disks stored in the respective disk storage spaces S1, S2 and S3. Further, take-out knobs 4e, 5e, 6e are provided on the front left side of the movable plates 4, 5, 6.

As shown in FIGS. 1 and 4, the moving table A includes a bottom plate 11a, side plates 11b bent on both sides of the bottom plate 11a, and an upper guide bent from the upper edge of the side plate 11b. It has a plate 11c. A door 19 is provided on the front side of the side plate 11b. The door 19 is supported by a shaft 19a so as to be open inward. In FIG. 1, the moving table A is the upper unit C.
The moving table A projects from the upper unit C
When the vehicle retreats inward, the door 19 comes to be substantially flush with the front surface of the nose portion of the housing in which the CD player unit is housed. That is, the moving table A
Moves back into the upper unit C and moves to the storage area overlapping the lower unit E, the magazine M is attached to the door 19.
The insertion port of is formed. Magazine M is
When the moving table A is in the upper unit C, it is inserted through this insertion opening. Then, the door 19 is maintained in a state of being rotated inward, as shown in FIG. The inserted magazine M is locked in the moving table A by a lock mechanism described later, and thereafter, the magazine M and the moving table A are integrated until ejected.

As shown in FIG. 4, a pair of sliding holes 11d are formed in the bottom plate 11a of the moving table A, and two lock pins 12 project from the sliding holes 11d. A lock lever 13 that supports a pair of lock pins 12 is provided on the lower surface of the bottom plate 11a. The lock lever 13 and the protrusion 1 provided at the inner end of the bottom plate 11a.
A spring 14 is interposed between the lock lever 13 and 1e, and the biasing force biases the lock lever 13 and each lock pin 12 in the (e) direction. A protrusion 13a is provided above the lock lever 13 in FIG.

Further, the bottom plate 11a of the moving table A is provided with a guide hole 11f having an arcuate locus.
The eject pin 15 projects from f. Bottom plate 11a
An eject lever 16 on which the eject pin 15 is supported is rotatably supported around the pin 17 on the lower surface of the. A spring 18 is hung between the eject lever 16 and the protrusion 11g at the inner end of the bottom plate 11a, and the urging force of the spring 18 urges the eject lever 16 and the eject pin 15 in the (f) direction.

As shown in FIG. 4, on the lower surface of the bottom surface 1a of the case 1 of the magazine M loaded on the moving table A, a guide inclination 1e and a lock groove 1f following the guide inclination 1g, and a guide inclination 1g and the guide inclination 1g are formed. A subsequent lock groove 1h is formed. In addition, a pressing step 1i is provided on the side of the guide inclination 1g.
Are formed. The guide slopes 1e and 1g, the lock grooves 1f and 1h, and the pressing step 1i are provided in the magazine M.
It is formed on the lower surface of the bottom surface 1a of the case 1, and its shape does not appear on the inner surface of the case 1.

In this player, a normal magazine M
The operation of loading and locking the moving table A on the moving table A and the ejecting operation of ejecting the magazine M from the moving table A are
This is performed in a state in which the moving table A is drawn into the upper unit C and overlapped with the lower unit E and stored. That is, when the movable table A is pulled into the upper unit C and the magazine M is inserted by pushing and opening the door 19 shown in FIG. 1, the lock pins 12 are locked by the guide inclinations 1e and 1g on the lower surface of the case. When the lock lever 13 is moved in the direction opposite to the (e) direction and further inserted, the lock lever 13 is pulled in the (e) direction by the force of the spring 14, the lock pin 12 enters the lock grooves 1f and 1h, and the magazine M is Locked in the moving table. At this time, the ejecting pin 15 is pushed by the pressing step 1i in the direction opposite to the (f) direction, and the urging force of the spring 18 acts in the direction of ejecting the magazine M. When the protrusion 13a of the lock lever 13 is pushed in the direction opposite to the (e) direction by the mechanism described later while the movable table A is pulled into the upper unit C, the lock pin 12 causes the lock grooves 1f and 1h. When it is disengaged from the inside, the lock is released, the eject pin 15 pushes the pressing step 1i by the urging force of the spring 18, and the magazine M is ejected from the inside of the moving table A.

As shown in FIG. 1, the cover 21 of the upper unit C is formed by bending a sheet metal into an inverted U-shape. One side plate 21a has a pair of parallel guide grooves 2
1b is formed. Side plate 11 of the moving table A
A sliding pin 22 is provided on the outer surface of b.
2 is inserted into the guide groove 21b, and the moving table A is guided in the guide groove 21b to retract and project into the cover 21, that is, the storage area overlapping the lower unit E and the upper portion as shown in FIG. It is reciprocally guided between the unit C and a position protruding forward. The side plate 21 on the opposite side provided on the cover 21
Similarly, a guide groove is also formed in c, and the sliding pin provided on the other side plate 11b of the moving table A is attached to the side plate 21c.
The side is also slidably guided.

As shown in FIG. 1, the side plate 21 of the cover 21.
A feed gear 24 supported by a shaft is provided at the lower edge of a. On the other hand, a rack is formed on the lower edge of the side plate 11b of the moving table A, and the rack is engaged with the feed gear 24. When power is transmitted from the lower unit E located on the lower side to the feed gear 24 by a route described later, the power is transmitted to the rack and the moving table A retreats into the cover 21 of the upper unit C or Driven in the protruding direction. The side plate 21 on the opposite side of the cover 21
Similarly, a feed gear is also provided on c, and a feed force is applied to the side plate 11b of the moving table A also on the side plate 21c side by this feed gear.

Further, as shown in FIGS. 3 and 4, the protrusion detection switch S of the movable table is provided in front of the side of the upper unit C.
W2 is provided, and as shown in FIG. 4, a storage table detection switch SW3 for the moving table is provided at the lateral rear portion of the upper unit C. As shown in FIGS. 3 and 4, the magazine M
When the movable table holding the table is completely protruded from the upper unit C, the protrusion detection switch SW2 detects the movable table, and when the movable table A is retracted to a position where it overlaps with the disc reproducing unit F, the storage detection is performed. It is detected by the switch SW3.

Next, the structure of the selection mechanism B located on the back side of the moving table A in FIG. 1 will be described. 5 is a sectional view taken along line VV of FIG. 4 for explaining the structure of the selection mechanism B. As shown in FIG. 6, the moving table A is provided with a discharging / inserting roller 41 and a lower driven roller 31 facing the opening 3 of the magazine M held by the moving table A. As shown in FIGS. 4 and 5, the ejection insertion roller 41 is supported by the swing lever 42, the lower driven roller 31 is supported by the roller holder 32, and is pressed against the ejection insertion roller 41 by the urging force of the spring. There is. As shown in FIG. 5, the side plate 11 of the moving table A is
A mechanism base 40 is extended and fixed to b, and the swing lever 42 is rotatably supported by a tip end portion of a shaft 43 fixed to the mechanism base 40. As shown in FIG. 5, the mechanism base 40 is provided with an elevating block 45 that moves in the vertical direction. This lifting block 4
A roller connecting lever 47 is rotatably supported by a pin 46 provided on the roller 5, and the tip of the roller connecting lever 47 is connected to the shaft of the discharging and inserting roller 41.

The lifting block 45 is guided in the vertical direction by a guide shaft 53 extending in the vertical direction in FIG. In addition, the lifting block 45 has a nut member 4
8 is held, and the nut member 48 is screwed onto the drive screw 49. The drive screw 49 is provided in parallel with the guide shaft 53, and the worm wheel 51 is fixedly installed in the lower portion thereof. A motor M1 for raising and lowering is provided on the mechanism base 40, and a worm 52 provided on a rotation shaft of the motor M1 meshes with the worm wheel 51. When the worm wheel 51 and the drive screw 49 are driven by the motor M1,
The elevating block 45 moves up and down by a distance according to the rotation speed. By this raising / lowering operation, the ejection / insertion roller 41 is also driven up / down via the roller coupling lever 47, whereby the swing lever 42 swings about the shaft 43, and the position of the ejection / insertion roller 41 in the vertical direction in the figure is determined. Be done.

The discharge insertion roller 41 is driven by the motor M1.
Is oscillated around the shaft 43, whereby the ejection insertion roller 41 moves to each selected position shown in FIG. Figure 6
In the state shown by, the lower driven roller 31 is in pressure contact with the ejection insertion roller 41 by the urging force of the spring, so that the lower driven roller 31 follows the lifting operation of the ejection insertion roller 41. In FIG. 6, the original position is when the ejection insertion roller 41 is at the height of (0), and (1) is the one-step selection position,
(2) is the 2-step selection position, and (3) is the 3-step selection position.
The original position indicated by (0) is a position used for ejecting the magazine.

As described above, the ejecting operation is performed only when the moving table A is housed in the upper unit C, and at this time, the lower driven roller 31 is separated from the discharging and inserting roller 41. Further, as shown in FIG. 6, the operation of ejecting and inserting the disc in the magazine M, that is, the disc exchanging operation is performed only when the moving table A is projected from the upper unit C. At this time, (1) is the ejection / insertion position for the disc stored in the first-stage disc storage space S1 of the magazine M, (2) is the ejection / insertion position for the disc D in the second-stage disc storage space S2, (3) is the ejection insertion position for the disc D in the disc storage space S3 of the third stage.
Each of these positions is performed by controlling the rotation speed of the motor M1 shown in FIG.

The detection rotor 55 for this control is rotatably provided below the guide shaft 53 shown in FIG.
Teeth are formed around the detection rotor 55, and these teeth mesh with a gear 54 that is integral with the worm wheel 51. Two detection holes are formed in this detection rotating body 55 per one rotation, and this is detected by the optical detector 56. Further, a detection arm 45a extending rightward in FIG. 5 is formed on the elevating block 45, and the detection switch SW1 faces below the detection arm 45a.

When the drive screw 49 is driven by the motor M1 to lower the elevating block 45 and the detection arm 45a turns on the detection switch SW1, the ejection insertion roller 41
Is the original position shown by (0) in FIG. When the worm wheel 51 is driven by the motor M1 to raise the elevating block 45 from this original position, the detection rotor 55 is driven by the gear 54 integrated with the worm wheel 51, and the detection output from the optical detector 56 is detected for each detection hole. can get. When two detection holes are formed in the detection rotator 55, for example, the detection rotator 55 rotates from the original position and the
When the detection output of one pulse is obtained, the one-stage selection position (1) of the ejection insertion roller 41 is set. Further, when the 7-pulse detection output is obtained from this position, the ejection / insertion roller 41 becomes the 2-step selection position (2), and when 7 pulses are obtained, it becomes the 3-step selection position (3). In this way, the elevating block 45 is detected by the detection outputs from the detection switch SW1 and the optical detector 56.
It is possible to control the ascending / descending position and the position of the ejection insertion roller 41.

As shown in FIG. 5, a motor M2 is provided at the right end of the mechanism base 40 in the figure. This motor M2
Is transmitted from the worm 61 to the worm wheel 62, and further transmitted from the gear 63 to the gear 64. The gear 64 is connected to the roller drive gear 66 by a clutch mechanism having a spring 65. This gear 64
The roller drive gear 66 is rotatably provided on the shaft 43 supporting the swing lever 42. The power of the roller drive gear 66 is transmitted to the driven gear 69 fixed to the shaft of the discharge insertion roller 41 via reduction gears 67 and 68 provided on the side surface of the swing lever 42. That is, the power of the motor M2 is transmitted to the ejecting and inserting roller 41 through each gear and the clutch, and the disc D in the magazine M is taken out by rotating the ejecting and inserting roller 41 in the counterclockwise direction in FIG. As a result, the disc D is returned to the magazine M.

Further, in the gear 71 integrated with the gear 64,
A transmission gear 72 supported by the mechanism base 40 meshes with each other, and a gear 73 integral with the transmission gear 72 meshes with a switching gear 74 having a larger diameter than the others. As shown in FIG. 5, the switching gear 74 is rotatably supported by a shaft 76 provided on the mechanism base 40, and the switching gear 74 is integrally provided with a cam 75. This cam 75 is the switching gear 7 shown in FIG.
4 is integrally formed on the back surface side. The shape of the cam 75 is a partial disc shape.

As shown in FIG. 4, a drive lever 81 is supported on the inner surface of the mechanism base 40 so as to be movable in the (h)-(i) directions. The drive lever 81 is biased in the (h) direction by a spring. A drive piece 81c is bent at the right end of the drive lever 81 in the figure, and faces the right side of the cam 75. A holder 81d is bent at the left end of the drive lever 81 in the drawing. Further, another plate member 84 is stacked on the right side of the holder 81d, and a bending piece 84a is provided on the plate member 84. As shown in FIG. 5, the mechanism base 40 is provided with a guide shaft 85 parallel to the drive screw 49, and a switching body 86 is supported by the guide shaft 85. The switching body 86 is held by the lifting block 45 and moves up and down together, and the guide shaft 85
It is possible to rotate around. As shown in FIG. 4, one arm 86a of the switching body 86 is interposed between the holder 81d at the left end of the drive lever 81 and the bent piece 84a, and the drive lever 81 moves in the (i) direction. Thus, the switching body 86 is driven clockwise in FIG.

A drive arm 86b is provided on the switching body 86. The drive arm 86b is a lock lever 13 provided on the lower surface of the bottom plate 11a of the moving table A in FIG.
Facing the protrusion 13a. FIG. 5 shows the lifting block 45.
Is the original position (0) of the ejection insertion roller 41 shown in FIG.
Shows when. The elevating block 45 is raised by the power of the motor M1, and the ejection insertion roller 41 is moved to the position shown in FIG.
When moving from the first-step selection position (1) to the third-step selection position (3), the drive arm 86a of the switching body 86 disengages upward from the projection 13a of the lock lever 13 and is loaded. The magazine M has a position facing the inside of any one of the take-out knobs 4e, 5e, 6e (see FIG. 2).

In the state shown in FIGS. 4 and 5, the drive lever 81 is moved in the (h) direction by the spring, but from this state, the switching gear 74 is rotated clockwise or counterclockwise by 3 degrees.
When rotated by 60 degrees, the cam 75 drives the drive lever 81 in the (i) direction at the beginning of the operation, and the switching body 86 sandwiched between the holder 81d and the bent piece 84a is driven in the clockwise direction in FIG. .. At this time, if the height position of the elevating block 45 is the original position (0) (at this time, the moving table A is stored in the upper unit C), the switching body 86
Lock lever 1 of the moving table A by the driving arm 86b of
2 is driven by the drive arm 86b, if 3 is driven and is in any of the 1st stage switching position (1) to the 3rd stage switching position (3) (at this time, the moving table A projects from the upper unit C). Extraction knobs 4e, 5e, 6e shown in
Any of the movable plates 4 or 5 or 6 is driven in the β direction in FIG.
The discs D in the magazine M are ejected from the openings 3 by ejecting pins 4c, 5c or 6c (only 6c is shown in FIG. 2) provided in the Nos. When the switching gear 74 further rotates and rotates 360 degrees, the drive lever 81 returns to the original position.

Next, the structure of the lower unit E will be described with reference to FIGS. On the base 100 of the lower unit E, a disc reproducing unit F is elastically levitated by dampers 102a to 102d. Further, the chassis 103 of the disc reproducing unit F is provided with a plurality of coil springs 105a, 105b, 105c for the base 100.
It is hung from. The disk reproducing unit F is supported via the damper and the coil spring to reduce the influence of the vibration of the vehicle body on the reproducing portion. As shown in FIG. 1, a turntable 106 is provided at a substantially central portion of the chassis 103 of the disc reproducing unit F. The turntable 106 is for supporting and rotationally driving the disk D drawn out from the magazine M, and is rotationally driven by a motor provided on the lower surface of the chassis 103. An optical pickup is provided in the notch 103a of the chassis 103 (not shown). The optical pickup moves along the recording surface of the disc D loaded on the turntable 106, and the performance is performed.

Chassis 103 of disk reproducing unit F
A clamp arm 110 is provided to face the above, and a clamper 115 is supported by the clamp arm 110. As shown in FIG. 1, a motor M3 is provided on the side of the disc reproducing unit F. The power of the motor M3 drives the drive lever 141 by the gear group 125, the clamp arm 110 is driven up and down by this power, and the turntable 106 and the clamper 115 clamp the disc.

As shown in FIG. 1, the power of the gear group 125 is transmitted to the transmission drive gear 128a. The transmission drive gear 128a is fixed to one end of a shaft 129 rotatably provided across the base 100. Another transmission drive gear 128b is fixed to the other end of the shaft 129. The upper unit C is superposed on the lower unit E and fixed to each other. At this time, the feed gear 24 provided on the side plate 21a of the cover 21 of the upper unit C meshes with the transmission drive gear 128a and the other side of the cover 21. The feed gear provided on the side plate 21c of the
Mesh with 8b. That is, the moving table A, which operates so as to project and retract with respect to the upper unit C, is driven by the power of the motor M3 provided in the lower unit E. A clutch mechanism is provided in the gear group 125, and a motor M3 is provided for the transmission drive gear 128a.
Is transmitted via the clutch mechanism.

Next, the operation of the CD drive unit having the above structure will be described. (Magazine Loading and Eject Operation) The magazine loading and eject are stored in a storage area where the moving table A is drawn into the cover 21 of the upper unit C and the clamp unit 110 is descending and overlaps with the reproducing unit F. It is performed in the state of being. Moving table A
The lower unit E
Is performed by the motor M3. When the transmission drive gears 128a and 128b are driven counterclockwise by the motor M3 through the respective gears, the feed gear 24 provided on the side plate 21a of the cover 21 of the upper unit C is driven clockwise, and the transfer table A of the moving table A is moved. The rack of the side plate 11b is driven and the moving table A is drawn into the upper unit C. At this time, the clamp arm 110 is driven by the motor M3.
Is moved down, and the moving table A is stored at a position where it overlaps the reproduction unit F in which the clamp arm 110 is moving down.

In this state, the magazine M is inserted. The magazine M is inserted between the bottom plate 11a and the guide plate 11c shown in FIG. 1 by pushing the door 19 of the moving table A. When the magazine M is inserted, as shown in FIG. 4, the guide inclination 1e provided on the bottom surface of the case 1 of the magazine M
And the lock pin 12 guided by 1g, the lock groove 1f
, And the magazine M is locked in the moving table A. After that, the movable table A and the magazine M operate integrally until ejected. Magazine M
The ejecting operation for ejecting is carried out when the moving table A and the magazine M held by the moving table A are drawn above the reproducing unit F.

When the eject command is issued, the worm wheel 51 is driven by the motor M1 of the selective drive mechanism B shown in FIG. 5 to drive the drive screw 49 integral with the worm wheel 51, and the elevating block 45 descends to detect it. Arm 45a
When the detection switch SW1 is turned on, the motor M1 stops. When the lifting block 45 reaches this position,
As shown in FIG. 6, the ejection insertion roller 41 that moves up and down together with the lifting block 45 is in the original position indicated by (0). In this original position, the drive arm 86b of the switching body 86 that moves up and down together with the lifting block 45 faces the inside of the protrusion 13a of the lock lever 13 provided below the bottom plate 11a of the moving table A.

In this state, the motor M2 provided in the selective drive mechanism B is driven, the transmission gear 72 is driven via the worm wheel 62 and the gears 63, 64, 71, and the gear 73 integral with this drives the switching gear. 74 is driven. At this time, the switching gear 74 may be rotated in either direction and rotated 360 degrees. The rotation of the cam 75 integrated with the switching gear 74 by 360 degrees drives the drive lever 81 in the (i) direction, and when the switching gear 74 rotates by 360 degrees, returns to the (h) direction. By this one reciprocating motion of the drive lever 81, the holder 81 at the left end of the drive lever 81 is
The switching body 86 sandwiched between d and the bent piece 84a is driven clockwise when viewed from above. Therefore, the drive arm 8 of the switching body 86
The protrusion 13a of the lock lever 13 shown in FIG. 4 is driven by 6b in the direction opposite to the direction (e), and the lock pin 12 is pulled out from the lock grooves 1f and 1h of the magazine M. Therefore, the eject pin 15 pushes the pressing step 1i of the magazine M by the force of the spring 18, and the magazine M is moved to the moving table A.
Discharged from.

(Disc exchange operation) The apparatus and eject operation of the magazine M are performed while the magazine M is retracted as described above, but the performance operation of the disc D is also such that the magazine M is retracted into the upper unit C. It is performed in the state of being. At this time, the disc D is sandwiched between the turntable 106 and the clamper 115, and the magazine M is stored on the disc D. The operation of exchanging the disc from this playing state will be described below.

In the disc exchanging operation, the motor M3 of the lower unit E is first driven from the playing state. This driving force is transmitted by the gear group 125 shown in FIG.
28a and 128b transmitted to the side plate 2 of the upper unit C
1a and the feed gear 24 and the other side plate 21
The feed gear provided in c is driven in the counterclockwise direction, power is applied to the rack provided on the side plate 11b of the moving table A, and the moving table A projects from the upper unit C. FIG. 3 and FIG. 6 show the protruding state of the moving table A and the magazine M in the disc exchange operation. At this time, the magazine M projects while the magazine M is held on the moving table A and the door 19 is rotated upward, so that the user can recognize that the ejected magazine M is not being replaced and the disc is being replaced. ..

The motor M3 of the lower unit E drives the transmission drive gears 128a and 128b, and when the moving table A projects, the same driving force of the motor M3 raises the clamp arm 110 in a substantially horizontal posture. Therefore, the clamp of the disc D on the turntable 106 is released. The lifting of the clamp arm 110 and the projecting operation of the moving table A are performed when the magazine M or the like is just released from the disc D.
Is the timing to complete the ascent of. When the clamp arm 110 rises, the lower driven roller 31 is lifted by the rotation of the roller holder 32, and the left end of the disk D in the drawing is sandwiched between the ejection insertion roller 41 and the lower driven roller 31.

In this way, the disk is exchanged while the moving table A projects in the state of FIG. 3 and the clamp arm 110 is raised. First, the drive screw 49 is driven by the motor M1 of the selective drive mechanism B shown in FIG.
The ejecting and inserting roller 41 is moved up and down via 7 and is moved to one of the selected positions shown in (1) to (3) in FIG. This is controlled by detecting the number of rotations of the detection rotor 55 shown in FIG. 5 by the pulse by the optical detector 56 as described above. For example, the place where the disc D, which has been clamped on the turntable 106 until now, is returned is the magazine M.
When the disk storage space S2 on the second stage of
The ejection / insertion roller 41 is in the two-stage selection position shown by (2), and the disk D whose end is sandwiched by the roller 41 and the lower driven roller 31 faces the front of the space S2.

When the control of the selected positions of the discharge insertion roller 41 and the switching body 86 is completed, the motor M2 of the selection drive mechanism B shown in FIG. 5 is driven, and the discharge insertion roller 41 is driven clockwise through the gear group. At the same time, the switching gear 74 is driven counterclockwise. The rotation amount of the motor M2 at this time is one reciprocating period in which the switching gear 74 rotates 360 degrees, the cam 75 moves the drive lever 81 in the (i) direction, and further returns in the (h) direction. By this one reciprocating movement, the arm 86a of the switching body 86 located between the holder 81d provided at the left end of the drive lever 81 and the bending piece 84a is pushed, and the switching body 86 is driven in the clockwise direction. By the elevating operation of the elevating block 45 shown in FIG.
And the lower driven roller 31 are the disk storage space S1,
When facing either S2 or S3, the switching body 86 moves with any one of the extraction knobs 4e, 5e, 5e shown in FIG.
It faces the inside of 6e. When the switching body 86 rotates in the clockwise direction, the drive arm 86b rotates the take-out knob 5e provided on the second movable plate 5 of the magazine M by β, for example.
And the movable plate 5 is rotated in the β direction. At this time, the disc D sandwiched between the ejecting and inserting roller 41 rotating clockwise and the lower driven roller 31 pressed against this is returned to the magazine storage space S2 of the second stage, for example. .. The operation of selecting a disk, pulling it out from the magazine M, and clamping it to the reproducing unit F is the reverse of the disk returning operation described above.

For example, when pulling out the disc in the uppermost disc storage space S3 in the magazine M, FIG.
The elevating block 45 is moved up by the motor M1 of the selective drive mechanism B shown in (4), and the ejection insertion roller 41 is moved to the three-stage selection position (3) in FIG. At this time, the drive arm 86b of the switching body 86 that rises together with the elevating block 45 faces the inside of the take-out knob 6e provided on the uppermost movable plate 6 in the magazine M.

In this state, the motor M2 drives the ejection / insertion roller 41 in the counterclockwise direction and drives the switching gear 74 in the clockwise direction. The rotation amount of the motor M2 at this time is also a period during which the switching gear 74 rotates 360 degrees in the clockwise direction.
A cam 75 that rotates clockwise with the switching gear 74 first pulls the drive lever 81 in the (i) direction and returns to the (h) direction before the completion of 360-degree rotation. The switching body 86 is driven clockwise in accordance with the operation of the drive lever 81. When the switching body 86 is driven in the clockwise direction, the drive arm 86b presses the movable plate 6 in the magazine M in the β direction.
Therefore, the ejection pin 6c provided on the movable plate 6 pushes the rear end of the disc D stored in the uppermost disc storage space S3, and the front end of the disc D is moved to the magazine M.
Stick out from. At this time, since the ejection insertion roller 41 located in front of the opening 3 is driven in the counterclockwise direction, the tip of the disc D is held by this roller 41 and the lower driven roller 31, and the disc D is held in the magazine. It is pulled out from the space S3 in M.

When the pulling out of the disk is completed, the motor M1 shown in FIG. 5 is driven again, the elevating block 45 is lowered and the switch SW1 is turned on, that is, the position shown in FIG.
It descends to the original position (0) shown in. As a result, the end portion of the disc D still held between the rollers 41 and 31 is lowered. After the disk D has been pulled out, the motor M3 of the lower unit E is started, the transmission drive gears 128a and 128b are driven counterclockwise through the gear group, and the feed gear 24 is driven clockwise. , The moving table A is drawn into the upper unit C. Then, the disk D is sandwiched between the clamper 115 and the turntable 106. Then, the disk D is rotationally driven and reproduced by the optical pickup.

(Operation when power is cut off) For example, in a vehicle, when the ignition key is turned off, the following operation is performed. As described above, when performing the disk selecting operation and the disk exchanging operation, as shown in FIG.
Further, as shown in FIG. 4, the moving table A projects from the upper unit C. Then, the state where the moving table A is projected is the detection switch SW2 of the moving table A.
Has been detected by. In this way, when the moving table A is projected to the outside of the upper unit C, that is, the outside of the apparatus, when the ignition key is turned off, the electric power from the battery is continuously supplied. When the ignition key is cut, the elevating block 45 is driven in the vertical direction by, for example, the motor M1 shown in FIG.
When the insertion / ejection roller 41 is being moved to one of the selected positions shown in FIG. 6 from (1) to (3), the operation is immediately stopped, and the motor M1 is continuously driven to move up and down the block 45. To lower the detection switch SW1
To the original position that turns on.

When the ignition key is turned off,
When the disc is sandwiched between the insertion / ejection roller 41 and the lower driven roller 31 and the disc is being pulled out from the magazine M, the power is continuously supplied to completely pull out the disc to reproduce the disc. The disc is clamped by the F turntable 106 and the clamper 115. Alternatively, the insertion / ejection roller 41 is reversed to return the disc into the magazine M. And lift block 45
To the original position. When the disc is being returned to the magazine M, the disc is completely returned into the magazine M, and then the elevating block 45 is lowered to the original position.

After the disk selecting operation or the disk pulling out or returning operation is completed and the elevating block 45 is returned to the original position, the motor M3 shown in FIG. 1 is started to start the gear group 125 and the gears 128a and 128.
The moving table A is stored in the upper unit C by b,
At the same time, the clamper 115 of the reproducing unit F is lowered, and the moving table A and the magazine M held by the moving table A are stored in a position overlapping the reproducing unit F. This storage is detected by the storage switch SW3 shown in FIG. 4, and the power from the battery is shut off based on this detection operation.

When the ignition key is turned off,
When the magazine M is already stored in the upper unit C and the disc is clamped by the reproducing unit F and the reproducing operation is being performed, the power supply is cut off and the reproducing operation is stopped. When the magazine is not loaded, the ignition key is turned off and the power supply is cut off at the same time.

FIG. 7 shows the structure of the control means for performing the above operation, and FIG. 8 shows a flow chart when the CD player unit is controlled by a control unit such as a microcomputer. As shown in FIG. 7, the control means is mainly composed of a control unit 95 such as a microcomputer. The detection output from the detection switches SW2 and SW3 of the moving table is input to the detection unit 97 shown in FIG. 4, and the detection output based on the detector 56 and the switch SW1 shown in FIG. 5 is input. The control program operates in the controller 95 based on the information from the detector 97. The battery 98 is also supplied to the motor drive circuits 96-1, 96-2, 96-3 via the ignition key 99a and the switching circuit 99b. The switching circuit 99b is switched by the controller 95. When it is necessary to continue the operation after turning off the ignition key 99a as described above, the electric power of the battery 98 is continuously supplied to each motor drive circuit via the switching circuit 99b.

In the control flow shown in FIG. 8, for example, when the elevating block 45 is moved up and down to perform the selection operation, or when the ejecting / inserting roller 41 returns the disc into the magazine or pulls it out of the magazine. Shows the state of. When the ignition key 99a is turned off in step S1, it is determined in step S2 whether the disc selection operation or the disc transfer is in progress. When these operations are not in progress, the power supply is cut off by the switching circuit 99b. Also, when it is determined that these operations are in progress,
In step S4, the switching circuit 99b continues to supply electric power, and the operation of each motor is continued as described above. Then, after it is determined in step S5 that the elevating block has descended to the original position, the operation is stopped. In addition, in the above-mentioned embodiment, assuming that it is mounted on a vehicle, the operation when the ignition key is turned off has been described, but the same applies when the main switch of the power supply is turned off when used as a household appliance. Can be carried out.

[0052]

According to the present invention described above in detail, even when the main power source is switched off during the disk selecting or exchanging operation, the moving table and the magazine are stored in the apparatus and then the apparatus. Will stop,
A protruding magazine does not interfere with the operation.

[0053]

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing the structure of the entire apparatus.

FIG. 2 is a perspective view showing the magazine from the disc ejection side.

FIG. 3 is a partial perspective view showing a state where a moving table protrudes from an upper unit.

FIG. 4 is a plan view showing a moving area of a moving table.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a side view showing the operation of pulling out the disc from the magazine.

FIG. 7 is a block diagram showing the configuration of control means.

FIG. 8 is a flowchart showing a control operation.

[Explanation of symbols]

 A moving table B selective drive mechanism C upper unit E lower unit F disc reproducing unit D disc M magazine 12 lock pin 13 lock lever 15 eject pin 16 eject lever 31 lower driven roller 41 insertion discharge roller 45 elevating block 55 detection rotating body 56 Detector 95 Control unit 97 Detection unit

Claims (1)

[Claims] 1. A plurality of disc moving units that move between a disc reproducing unit having a rotating mechanism for rotating the disc and a pickup facing the disc, and a storage area overlapping the disc reproducing unit from a position projecting to the outside of the apparatus. Table for holding a disc magazine in which the discs are stored, a moving mechanism for moving the moving table, and a disc that holds any one of the discs in the disc magazine inside the device. An in-vehicle disc exchange type player provided with a roller for moving a disc between the reproducing unit and the disc magazine, and a selective drive mechanism for selectively moving the roller to a position where a desired disc can be held in the disc magazine. And the roller is moved by the selective drive mechanism. Then, when the power switch is turned off during the disk selecting operation or while moving the disk by the roller, the power is turned on after the completion of the disk selecting operation or the disk moving operation is detected. A disc exchange type player, which is provided with a switching circuit for cutting.