JP3436280B2 - Auto changer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an autochanger suitable for application to a disc autochanger or the like capable of selectively reproducing and exchanging a plurality of discs.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
There is a disc autochanger 10 capable of selectively reproducing and exchanging a disc 1 such as a (compact disc). This disc auto changer 1
In No. 0, a vertically movable stocker 12 and a reproducing unit 13 for reproducing the disc 1 are arranged in a box-shaped cabinet 11. The stocker 12 can store a plurality of disks 1. The reproducing unit 13 is composed of a disk chucking mechanism, an optical pickup, and the like. Also,
A tray 14 for loading and unloading the disc 1 from the outside is arranged so that it can be freely loaded and unloaded through an inlet / outlet port 15 of the cabinet 11.

FIG. 91 shows a procedure of a disc storing and reproducing operation of the conventional disc autochanger 10. In the disc storing and reproducing process 20, first, the disc No.
Is designated (step 421),
When the designation is made, it is judged whether or not there is the disc 1 in the tray 14 (step 422). If there is a disc 1 in the tray 14, then the disc 1 in the tray 14 is stored in a predetermined position of the stocker 12, that is, in the position where the disc 1 was stored before it was moved to the tray 14 (step 423).

Subsequently, the stocker 12 is moved to match the designated storage position of NO with the height of the tray 14 (step 424), and then the disc 1 of designated NO is transferred to the tray 1.
4) (step 425). In step 425, even when the disc 1 with the designated NO is not in the stocker 12, the same movement processing as when the disc 1 is present is performed. In step 422, the disc 1 is placed in the tray 14.
If it is determined that the stocker 12 does not exist, the stocker 12 is moved in step 424 and the designated NO storage position and tray 14 are set.
Are adjusted to the same height, and then the same processing as described above is performed.

After the movement processing of the disk 1 is performed in step 425, or when it is determined in step 421 that the disk NO is not designated, it is determined whether the tray open / close key is turned on (step). 426) and a determination process (step 427) as to whether or not the reproduction key is turned on. That is, here, the tray open / close key and the play key are not turned on at the same time.
The status of both keys is being monitored. Then, for example, when it is determined in step 426 that the tray open / close key is turned on, the tray 14 is opened next (step 4
28). Normally, at this time, the disc 1 is placed on the tray 14.

Next, it is judged whether or not the tray open / close key is on (step 429), and if it is judged to be on, the tray 14 is closed (step 430).
Then, the presence / absence of the disc 1 in the tray 14 is determined and the result is displayed (step 431), and the disc 1 is clamped (step 432), whereby the disc storing process and the reproducing process 20 are performed. finish.

If it is determined in step 427 that the playback key is turned on, it is next determined whether or not there is the disc 1 in the tray 14 (step 433). Is reproduced (step 434). Then, it is judged whether or not the reproducing process is completed (step 435), and when it is completed, the disc storing and reproducing process 20 is completed. Also, step 43
When it is determined that there is no disc 1 in the tray 14 in 3,
The disc storing and reproducing process 20 is finished as it is.

[0008]

By the way, the conventional disc autochanger 10 shown in FIG.
Some have a sensor for determining the size and presence / absence. However, if the user mistakenly stacks two discs 1 on the tray 14, the sensor cannot identify this and the tray 14 closes, and the disc 1 remains as it is.
Will be stored inside the device. However, stocker 12
Since the storage space for one disc 1 is usually set to one, one of the two discs 1 is stored in the stocker 1
However, if the stocker 12 is not properly stored and remains in an improper position inside the apparatus, and the stocker 12 is moved or played back as it is, it may cause damage to the disk 1 or a failure of the apparatus itself. It was

Further, for example, when the tray 14 is dedicated to the disc 1a having a diameter of 12 cm, and the user erroneously places the disc 1b having a diameter of 8 cm, the sensor judges that the disc 1 is present, and the disc 1b is used as it is. Will be stored inside the device. However, since the internal mechanism of the apparatus, for example, the mounting portion of the disc 1a recessed in the tray 14 is set according to the size of the disc 1a having a diameter of 12 cm, the storage in the stocker 12 and the reproducing unit 1 are performed.
The playback operation by 3 is not performed normally. In this case,
The disc 1b is misaligned or dropped inside the apparatus, causing the same problem as described above.

Therefore, the present invention solves the above-mentioned problems and proposes an automatic changer capable of preventing a user's erroneous operation and always storing a disc in an appropriate state.

[0011]

In order to solve the above-mentioned problems, the autochanger according to the present invention has a plurality of discs.
Is an autochanger that selectively plays and replaces
A cabinet, a reproducing means provided in the cabinet, and a plurality of mounting means for mounting and moving or holding a recording medium to be mounted on the reproducing means at a predetermined position. Movable storage means for storing each mounting means ,
The mounting means from this storage means can be moved back and forth.
In addition, the storage device is equipped with a loading / unloading means capable of loading and unloading with respect to the cabinet and a determination means for determining the state of the recording medium mounted on the loading means on the loading / unloading means. means
Has a framed unplug holes and two-ply plurality of detection holes for detection mounting of these detection hole is a position of closing the immediately preceding and out means in relation to the cabinet, the rear side of the bottom of and out means disposed, the one in this and out means serial
When a recording medium is loaded,
The storage medium is moved forward and comes into contact with the edge of the hole.
Without passing through the detection hole, the recording medium is moved to the storage means, and when two recording media are loaded in the loading / unloading means (hereinafter referred to as the tray 33) , the loading means (hereinafter referred to as the disc holder 2).
5a) moves the first storage medium (hereinafter referred to as the disk 1a) forward and passes over the detection hole and is moved to the storage means (hereinafter referred to as the stocker 22),
The second recording medium comes into contact with the edge of the punched hole and is left behind ,
The second recording medium blocks the detection hole.

[0012]

When the disc discriminating operation is started, the luminous body 26
0a and 260b (FIG. 40) emit light, and the detection holes 55a to 55g of the disc holder 25a shown in FIG.
Sensor 86a, 86b when the light passes through
The presence or absence of light emission of 0a and 260b is detected. And FIG.
As shown in FIG. 5, immediately before the tray 33 is closed, the sensors 86a and 86b detect the presence or absence of light emission of the light emitters 260a and 260b through the two detection holes 55h and 55i of the tray 33.

As shown in FIG. 47, when the user erroneously stacks two discs 1 and performs the closing operation, one edge of the upper disc 1b immediately before the tray 33 is closed is the holder mounting portion of the tray 33. Slide down on 91. Therefore, light emission is not detected in at least one of the detection holes 55h and 55i, and the control unit 36 (FIG. 1) determines this as an erroneous operation by the user. Light emitters 260a, 26
0b, the sensors 86a and 86b and the control unit 36 are discriminator
Make up the steps.

As shown in FIG. 48, when the user mistakenly places the disc 1b having a diameter of 8 cm on the disc holder 25a for the disc 1a having a diameter of 12 cm, when the tray 33 starts the closing operation, the disc 1b slides out and is placed on the disc. It moves to the front of the storage unit 41. Therefore, no light emission is detected in one or both of the detection holes 55d and 55e, and the control unit 36 (FIG. 1) judges this as an erroneous operation by the user.

In this way, the control unit 36 (FIG. 1) interrupts the closing operation and opens the tray 33 forward when it is determined that the user has made an erroneous operation. Therefore, the user's erroneous operation is prevented and the disc 1 is always kept in an appropriate state.
Is stored in the stocker 22, so damage to the disk 1 and failure of the device are prevented.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of an autochanger according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the structure of a disc autochanger 20 to which the autochanger according to the present invention is applied.
On the rear side of the cabinet 21 of the substantially rectangular parallelepiped of the disc autochanger 20, there is disposed a stocker 22 as a storing means for storing seven discs 1 which are recording media such as CDs in a vertically stacked manner. A cylindrical stocker moving cam 23 and a shaft 24 pass through near the rear of the stocker 22 (FIG. 5). The stocker 22 moves between the upper partition 31 and the lower partition 32 by the rotation of the stocker moving cam 23. The movement of the stocker 22 is guided by the shaft 24 in the vertical direction.

In the stocker 22, seven disc holders 25 as disc mounting means are vertically stacked in a line, and one disc 1 is placed on each of them. Further, along the moving direction of the stocker 22, the upper partition 31
The upper strut 26 and the lower strut 27 project from the lower partition 32 and the lower partition 32, respectively. The upper strut 26 and the lower strut 27 are arranged so as to coincide with the chucking hole (center hole) 73 (FIG. 4) of the disk 1 placed in the stocker 22.

A tray entrance / exit 28 is provided on the front surface of the cabinet 21, and a tray 33 is inserted through the tray entrance / exit 28.
A tray 33 as a loading / unloading means for the disc 1 is slidably attached to the tray mounting portion 40 so that the disk can be loaded and unloaded. A reproduction holding portion 35 for holding the disc 1 and the disc holder 25 at the reproduction position is provided below the tray mounting portion 40. A vertically movable reproducing unit 34 as a reproducing unit for the disc 1 is arranged below the reproducing / holding unit 35, and the reproducing unit 3 is used for reproducing the disc 1.
4 rises to clamp (hold) the disc 1.

Above the upper partition portion 31, a cam gear 161 which is a driving means of the stocker moving cam 23, etc. (see FIG. 1).
7) is provided, and below the lower partition 32, a controller 36 that controls the disc autochanger 20 is provided. A transparent window 37 is attached from the front surface to the top surface of the cabinet 21 so that the user can see the vertical movement operation of the stocker 22 and the sliding operation of the tray 33.

FIG. 2 shows the structure of the disc holder 25 housed in the stocker 22. In addition, the disk 1 has a diameter of 1
There are two types, a 2 cm disc 1a and a 8 cm diameter disc 1b. The disc holder 25a in the figure has a diameter of 1
A disc holder 25b for use with a disc 1b having a diameter of 8 cm, which is dedicated to the disc 1a having a diameter of 2 cm.
The case will be described later.

The front-rear length of the disc holder 25a is set to be equal to or slightly larger than the diameter of the disc 1a. A diameter of approximately 12 cm is in the center of the disc holder 25a.
The circular disk mounting portion 41 is provided with a recess, and the disk 1a is mounted thereon. An inclined portion 42 that is inclined inward is provided along the outer periphery of the disc mounting portion 41 to facilitate the removal of the mounted disc 1a. Slope 42
The first cutouts 43, 43 at the left and right symmetrical positions.
Is provided. An optical pickup section 181 (FIG. 19) and a turntable 182 are provided on the disk mounting section 41.
A reproduction hole 53 for inserting (FIG. 19) is provided, and seven detection holes 55a to 55g are provided in two rows along the front-rear direction at positions asymmetric with respect to the center of the disc 1a. .

A first projecting portion 44 is formed toward the front on the left side of the front side of the disk holder 25a, and a cylindrical lever engaging portion 4 is formed on the lower surface side of the tip of the first projecting portion 44.
5 is formed. A second protrusion 46 is formed on the front right side of the disc holder 25a toward the front, and a rack 47 is formed on the lower surface of the disc holder 25a in the front-rear direction along the left side surface of the second protrusion 46a. There is. Further, on the left side of the rear side of the disc holder 25a, the second cutout 51 and the third cutout 5 for avoiding interference with the stocker moving cam 23 (FIG. 1) and the shaft 24 (FIG. 1).
2 are provided adjacent to each other. Further, locking portions 54, 54, which are semicircular cutouts, are provided near the rear portions of the left and right side surfaces of the disc holder 25a. Further, a second holding lever 25, which will be described later, is provided on the left side of the upper surface of the disc holder 25a.
A lever groove 56 for guiding 3 (FIG. 32) is provided along the front-rear direction.

The stocker 22 is formed in a substantially rectangular parallelepiped shape, and its front-rear length is set to be the minimum dimension necessary for accommodating the disc 1a, which is approximately the same as the diameter of the disc 1a in this example. The inner width of the stocker 22 is set to be slightly larger than the disc holder 25a. A front opening 22a for loading / unloading the disc holder 25a and the disc 1a is provided on the front side of the stocker 22, and a rear opening 22b having a smaller width is provided on the rear side.
Is provided. A cam storage portion 61 for penetrating the stocker moving cam 23 (FIG. 1) is provided to the left of the rear side of the stocker 22, and a cam follower 62 projects rearward from the outer surface of the cam storage portion 61. There is. Further, a projection 66 is provided on the right rear end portion of the stocker 22 so as to project.

As shown in FIG. 3, a spring hole 67 and a recess 68 adjacent to the spring hole 67 are formed on the left and right sides of the stocker 22 toward the rear.
Is provided. An engaging protrusion 69 is provided in the recess 68, and the leaf spring 65 is inserted into and fixed to the engaging protrusion 69. The leaf spring 65 has an arcuate curved portion 70, and the curved portion 70 is inserted into the stocker 22 through the spring hole 67. Since the depth of the recess 68 is set to be larger than the thickness of the leaf spring 65, the leaf spring 65 does not protrude from the side surface of the stocker 22.

As shown in FIG. 2, holder shelves 71 for holding the disk holders 25a are provided on the left and right inner surfaces of the stocker 22 so as to project inward. The holder shelf 71 is provided for each of the seven disc holders 25a as shown in FIG. 4, and the center portion thereof has a thickness slightly larger than the front end portion and the rear end portion, so that the front and rear directions are To form an inclined surface. Further, through holes 72, 72 are provided in the top and bottom surfaces of the stocker 22 so as to coincide with the position of the chucking hole 73 of the disc 1a.

When the disc holder 25a is stored in the stocker 22, the rear end of the outer periphery of the disc holder 25a is inserted into the rear opening 22b as shown in FIG. The disc holder 2 is provided on the inner surface of the cam storage portion 61.
The second cutout portion 51 of 5a is fitted, and the left and right inner walls of the stocker 22 contact the left and right side surfaces of the disc holder 25a.
Further, as shown in FIG. 3, the bent portion 70 of the leaf spring 65 is inserted into the notch 54 for locking of the disk holder 25a and locked. Further, as shown in FIG. 4, the upper and lower holder shelves 7
The disk holder 25a is clamped by 1. Then, the through hole 72 of the stocker 22, the chucking hole 73 of the disc 1a, and the reproduction hole 53 of the disc holder.
Further, the upper column 26 (FIG. 1) or the lower column 27 penetrates to prevent the disc 1a from being displaced. Therefore, the positions of the disc holder 25a and the disc 1a are regulated in the stocker 22 so that they are not accidentally dropped.

This disk holder 25a is used for the stocker 2
When sliding from 2 to the front, by pulling out the disc holder 25a shown in FIG. 3 with a predetermined force, the leaf spring 65 is elastically deformed to be disengaged from the locking notch 54. Further, as shown in FIG. 4, the front and rear inclined surfaces of the holder shelf 71 smoothly guide the forward sliding of the disc holder 25a.

FIG. 5 is a sectional view taken along the line AA in FIG. 1, and shows the arrangement of the stocker 22 in the cabinet 21. Stocker 2
The rear part of the stocker 22 is arranged on the inner surface on the rear part side of the cabinet 21, and the left and right side surfaces of the stocker 22 are respectively surrounded by the inner side plate parts 82, 82. ) Is inserted in the guide groove 83 provided along the line. Further, the stocker moving cam 23 is inserted into the cam storage portion 61, and the shaft 24 penetrates the inside of the stocker 22 and comes into contact with the third cutout portion 52 of the disc holder 25a. Further, the tray 33 is provided between the left and right inner side plate portions 82, 82 and the left and right side surfaces of the cabinet 21.
Guide bar insertion portions 90, 90 for inserting the respective guide bars 92, 93 (FIG. 1) of FIG. 1 are provided.

A tray placing section 40 for placing the tray 33 (FIG. 1) is provided on the front side adjacent to the stocker 22. A through hole 87 is provided on the front right side of the tray mounting portion 40, and a tray drive gear 88 is attached to the through hole 87. The upper surface of the tray drive gear 88 is engaged with a front stopper rib 74 (FIG. 6) and a rear stopper rib 75 (FIG. 6) formed near the right front end and the rear end on the lower surface side of the tray 33. Two tray stoppers 88
a and 88a are provided. Two sensors 86a and 86b are provided at the positions shown in FIG. 5, respectively. These sensors 86a and 86b are for discriminating the state of the disk, and the details thereof will be described later. A first lever guide groove 89 is provided in the tray mounting portion 40,
The front side of the first lever guide groove 89 is a straight line portion 89a along the front-rear direction, and the rear side is a curved portion 89b curved rightward.
Has become. Further, the first tray guide rib 7 having a linear shape along the front-rear direction is provided on the left and right side surfaces of the tray mounting portion 40.
6 and 76 are provided, and four second tray guide ribs 77 project inward from the left and right inner side surfaces of the cabinet 21.

The tray 33 is placed on the tray placing section 40 as shown in FIG. The tray 33 includes a substantially rectangular holder mounting portion 91 for mounting the disc holder 25a, and a right guide bar 92 and a left guide bar 93 protruding from the left and right rear portions. The width of the tray 33 is set to be equal to or slightly smaller than the inner width of the cabinet 21, and the right guide bar 92 and the left guide bar 93 are inserted into the left and right guide bar insertion portions 90, 90, respectively. Left and right inner surfaces of the cabinet 21 and the guide bar insertion portions 90, 90
A space is provided so that the slide movement of the tray 33 in the front-rear direction is not hindered. Further, the front-back length of the tray 33 is set such that the front end portion of the tray 33 is flush with the front surface of the cabinet 21 when the tray 33 is stored in the cabinet 21.

The shape of the holder mounting portion 91 on the side of the stocker 22 is formed so as not to interfere with the vertical movement (perpendicular to the paper surface) of the disk holder 25a by the stocker 22. That is, the fourth cutout portion 94 for avoiding the first protruding portion 44 of the disc holder 25a is provided, and the curved portion 106 for avoiding the disc mounting portion 41 is provided. In addition, a drawer lever 121 described later
A fifth notch 107 for avoiding the rotational movement (FIG. 7) is provided on the left side of the bending portion 106. In addition, tray 3
Pulling out lever 121 (FIG. 7) in the stored state of 3
The first guide protrusion 132 (FIG. 7) of the first lever guide groove 89.
The shape of the rear portion of the holder mounting portion 91 is formed so as not to interfere with the rear end portion 89c so that it can be inserted into the rear end portion 89c.

The holder mounting portion 91 is composed of an upper surface portion 98 and a bottom surface portion 97 recessed in the upper surface portion 98. Bottom part 9
The width of 7 is set according to the width of the disc holder 25a, and left and right edges thereof are formed with linear left edge guide portions 101 and right edge guide portions 102 along the front-rear direction.
A left side of the left edge guide portion 101 is provided with a holding lever guide portion 100 for guiding rotation of a second holding lever 253 (FIG. 32) described later, and a lever engaging portion of the disc holder 25a. An engaging portion guide groove 105 for guiding 45 is provided in the front-rear direction. The right side surface of the rear portion of the engaging portion guide groove 105 is curved to the right to bend the curved portion 10.
5a. A curved edge portion 103 having a shape corresponding to the disc mounting portion 41 of the disc holder 25a is formed on the front side edge of the bottom surface portion 97, and an appropriate arcuate finger is provided at a position symmetrical to the curved edge portion 103. Inlets 111, 111 are provided.

A second lever guide groove 95 is provided on the bottom surface portion 97 of the holder mounting portion 91 toward the rear portion, and a third lever guide groove 95 is provided on the front portion side.
A lever guide groove 96 is provided. The second lever guide groove 95 is composed of only a straight part, and the third lever guide groove 96 is composed of a straight part and a curved part. The second lever guide groove 95 and the third lever guide groove 96 form the pull-out lever 12
1 (FIG. 7) is formed in a V shape corresponding to the locus of the rotational movement. A disc holder 25a is provided near the rear of the bottom surface 97.
Of the detection holes 55 at the positions on the two lines of each detection hole 55 of
h and 55i are provided respectively. Further, a first pressing lever 25, which will be described later, is provided near the left finger insertion portion 111.
A triangular protrusion 115 and a contact portion 113 for rotating 2 (FIG. 33) are provided. The contact portion 113 includes a first contact surface 113a and a third contact surface 113c along the left-right direction.
And a second contact surface 113b and a fourth contact surface 113d along the diagonal direction.

The tray drive gear 8 is provided on the lower surface of the tray 33.
A tray drive rack 114 is formed in the front-rear direction so as to mesh with 8, and front portion ribs 74 and rear portion ribs for engaging with the tray stoppers 88a and 88a of the tray drive gear 88 are formed near the front end and the rear end on the right side. Rib for stopper 75
Are formed. In the closed state of the tray 33, one of the tray stoppers 88a, 88a of the tray drive gear 88 is located on the front side of the front stopper rib 74 of the tray 33 and engages with this, whereby the tray 33 is pulled by hand. In case of an accident, it is prevented from being pulled out.

As shown in FIG. 7, the disc holder 25
A pull-out lever 121, which is a moving means for pulling out a in the front direction, is arranged on the bottom surface 97 of the tray 33.
The pull-out lever 121 is formed in a substantially L-shape, and has a curved first curved portion 122 that does not interfere with the disk mounting portion 41 of the stocker 22, and a first straight portion 123 that abuts on the rack guide portion 104. , A second straight line portion 124 extending obliquely forward from the first straight line portion 123, and a cabinet 2
It is composed of a second curved portion 125 located on the first front side and a third straight portion 126 along the front-rear direction.

A cylindrical first guide protrusion 132, a second guide protrusion 133, and a third guide protrusion 134 are formed on the lower surface of the pull-out lever 121. The first guide protrusion 132 is provided at the right rear end portion of the pull-out lever 121, and the guide protrusions 132 to 134 are arranged substantially linearly along the second linear portion 124 from the front side toward the diagonally right rear. There is. Then, the first guide protrusion 132 is inserted into the first lever guide groove 89, the second guide protrusion 133 is inserted into the second lever guide groove 95 of the tray 33, and the third guide protrusion 134 is inserted into the third lever guide groove 96. Has been inserted. The third guide protrusion 134
A retaining claw portion 134a is provided on the first guide protrusion 134a to prevent the third guide protrusion 134 from being accidentally removed during a sliding operation described later. When the tray 33 is accommodated, the first guide protrusion 132 is located at the rear end portion 89c of the first guide groove 89, the second guide protrusion 133 is located at the substantially right end of the second lever guide groove 95, and the third guide is formed. The protrusion 134 is the third
The lever guide groove 96 is located substantially at the left end.

The first curved portion 122 of the pull-out lever 121
At a crossing portion between the third straight line portion 126 and the third straight line portion 126, there is provided a short side portion 131 formed higher than other portions. Short section 13
A cylindrical holder engaging portion 137 is provided on the lower surface of the front end of the disk 1 and is located on the rear right side of the lever engaging portion 45 of the disc holder 25a. Further, the tray cover 138 indicated by the chain double-dashed line is covered so as to cover the entire holder mounting portion 91. The tray cover 138 is provided with a hole 139 and a finger insertion portion 111 corresponding to the diameter of the disc 1a at the center.

FIG. 8 shows the above-mentioned disc holder 25a,
Tray 33, pull-out lever 121 and tray cover 1
It is sectional drawing which showed the structure of 38. As shown in the figure,
In order not to interfere with the movement of the disk holder 25a in the front-back direction (perpendicular to the paper surface), the pull-out lever 12
1 is disposed below the disc holder 25a, and the tray cover 138 is disposed above the disc holder 25a. The height of the short side portion 131 of the pull-out lever 121 is set lower than that of the first protruding portion 44 of the disc holder 25a, and the short side portion 131 can enter the lower side of the first protruding portion 44. There is.

The left and right first tray guide ribs 76, 76 of the tray mounting portion 40 are respectively inserted into the first slide grooves 78, 78 provided on the lower surface of the tray 33 and provided on the inner surface of the cabinet 21. Second tray guide ribs 77, 77 are provided on the left and right side surfaces of the tray 33.
The slide grooves 79, 79 are respectively inserted. As a result, the sliding movement of the tray 33 is guided in the front-back direction. Incidentally, the sliding operation of the tray 33 can be guided only by the second tray guide ribs 77, 77, so that the first tray guide ribs 76, 76 are not necessary. In addition, the cover engaging portion 138 of the tray cover 138.
a goes around the side surface of the tray 33 and is engaged with the cover fixing groove 140 of the tray 33. The strength of this engagement is set so that the user can remove the tray cover 138.

Now, the operation of opening and closing the tray 33 in the disc auto changer 20 will be described.

As shown in FIG. 7, the disc 1a is placed on the disc holder 25a and stored in the stocker 22. When the user selects the open mode by the key (not shown) provided on the front surface of the cabinet 21, the tray drive gear 88 is driven by the motor (not shown).
Rotates counterclockwise, and the tray 33 is slid forward by the tray drive rack 114 that meshes with the tray drive gear 88. When the tray 33 starts to slide forward,
As shown in FIG. 9, the curved portion 89b of the first lever guide groove 89
The first guide protrusion 132 is guided to the left front along the
The guide protrusion 134 is guided rightward and forward along the third lever guide groove 96. This causes the pull-out lever 121 to start rotating counterclockwise. A predetermined section from the start of sliding of the tray 33 to the rotation of the pull-out lever 121 by a predetermined angle, in this example, about 45 degrees, the pull-out lever 121 is set to the second position.
The guide protrusion 133 is rotated about its center. Therefore, the second guide protrusion 134 hardly moves with respect to the tray 33 in the predetermined section.

When the pull-out lever 121 rotates counterclockwise, the holder engaging portion 137 is moved to the tray 33.
It is guided by the engaging portion guide groove 105 and starts to move forward. At this time, the short side portion 131 of the pullout lever 121
Is the first of the disc holder 25a as shown in FIG.
It enters the lower surface of the protruding portion 44 and contacts the lever engaging portion 45. Since the pull-out lever 121 still rotates in the counterclockwise direction, the lever engaging portion 45 is pushed forward by the short side portion 131, whereby the disc holder 2
5a is conveyed forward. Then, as shown in FIG. 9, both side surfaces of the disc holder 25a and the rack 47 come into contact with the right edge guide portion 102 and the left edge guide portion 101 of the tray 33, whereby the forward movement of the disc holder 25a is guided.

As shown in FIG. 11, when the tray 33 still slides forward and the third guide projection 134 reaches the right end of the third lever guide groove 96 and the rotation of the pull-out lever 121 exceeds 45 degrees, The second guide protrusion 133 starts moving to the left in the second lever guide groove 95. In addition, the first guide protrusion 1
32 continues moving to the left front along the 1st lever guide groove 89 as it is. Rotation of the drawer lever 121 is approximately 4
In a predetermined section after exceeding 5 degrees, the pull-out lever 12
1 rotates about the third guide protrusion 134. During this time, the short side portion 131 of the pullout lever 121 continues to move along the engaging portion guide groove 105 while pressing the lever engaging portion 45 of the disc holder 25a, so that the disc holder 25a moves further forward.

The second guide protrusion 133 is arranged in the second lever guide groove 9
When reaching the left end of 5, the pull-out lever 121 again rotates clockwise around the second guide protrusion 133. Therefore, as shown in FIG. 12, the third guide protrusion 1
34 starts moving toward the left rear of the third lever guide groove 96. When the first guide protrusion 132 enters the straight portion 89a of the first lever guide groove 89, the pull-out lever 12
The rotational movement of 1 ends. At this point, the pull-out lever 121 is in a state of rotating 90 degrees counterclockwise from the start of the opening operation of the tray 33. At this time, the lever engaging portion 45 contacts the engaging portion guide groove 105 at the front end portion,
The outer edge of the disc mounting portion 41 of the disc holder 121 abuts on the curved edge 103 of the tray 33, and the third linear portion 126 of the pullout lever 121 abuts on the first abutting surface 113a of the abutting portion 113. The guide protrusion 132 contacts the fifth cutout portion 107 of the tray 33. This completes the movement of the disc holder 25a.

On the other hand, the tray 33 has a disc holder 25.
Continues to slide further forward in the state where the tray is placed, the first guide protrusion 132 reaches the end of the linear portion 89a of the first lever guide groove 89, and the tray 1 is driven at a position where the disc 1a is completely exposed from the cabinet 21. The gear 88 stops, and the opening operation of the tray 33 is completed. At this time, the first cutout portion 43 of the disc holder 25a is aligned with the finger insertion portion 111 of the tray 33, and the user can easily take out the disc 1a by inserting a finger into the finger insertion portion 111. Further, in this state, the rear stopper rib 75 of the tray 33 engages with one of the tray stoppers 88a, 88a of the tray drive gear 88, and in addition to this, the first guide protrusion 132 of the pull-out lever 121 causes the holder mounting portion 91. By contacting the front end of the first lever guide groove 89, the tray 33 is prevented from being further pulled out.

Further, in the closing operation of the tray 33 when the disk 1a is stored in the stocker 22, the tray drive gear 88 rotates in the clockwise direction opposite to the above, whereby the tray 33 slides rearward. At this time, the pull-out lever 121 rotates by an operation almost opposite to the opening operation, and the short side portion 131 abuts on the front surface of the disc holder 25a, as shown in FIG.
2 is pressed, and when the closing operation of the tray 33 is completed, as shown in FIG.
It is stored in 2.

As described above, by using the drawer lever 121 interlocking with the tray 33, the stocker 22
The disc 1a stored in can be easily put in and taken out.

Next, the structure and operation of the stocker moving cam 23 will be described. The stocker 22 is moved by the rotation of the stocker moving cam 23 shown in FIG. 1, and the disc 1a designated by the user is moved to the tray 33 or the reproduction holding unit 35.
Carry to the height of.

As shown in FIG. 14, three cam followers 62 projecting rearward from the cam housing 61 are meshed with the stocker moving cam 23. The stocker moving cam 23 penetrates the upper partition 31 and is rotationally driven by the stocker moving cam driving means provided on the upper partition 31 as described later.

As shown in FIG. 15, the stocker moving cam 23 has an inclined portion 23a having a tooth groove for moving the stocker 22 upward or downward, and the stocker 22 is set at a fixed position as shown in FIG. It is composed of a flat portion 23b in which a tooth groove for holding is horizontally formed. The intervals of the flat portions 23b are set to be the same as the intervals of the disc holders 25a stacked in the stocker 22. Also,
As shown in FIGS. 15 and 16, the stocker moving cam 2
A shaft 24 parallel to 3 penetrates the stocker 22.

As shown in FIG. 14, a cam drive motor 151 is attached to the inner surface of the cabinet 21, and its rotation shaft penetrates the upper partition 31. As shown in FIG. 17, a belt 152 for transmitting rotation is wound around the rotation shaft of the cam drive motor 151 and the first intermediate gear 153. The lower surface of the first intermediate gear is provided with a first inner gear 154 having a smaller diameter than this, and a second intermediate gear 158 meshes with the first inner gear 154. The second intermediate gear 158 is provided with one circular rotation detection hole 158a. Also,
The detection unit 16 is arranged so as to face the board surface of the second intermediate gear 158.
Two are provided.

A second inner gear 159 having a smaller diameter than that of the second intermediate gear 158 is provided on the upper surface of the second intermediate gear 158, and a third intermediate gear 160 meshes with the second inner gear 159. Further, this third intermediate gear 160
Meshes with a cam gear 161 fixed to the shaft of the stocker moving cam 23. In this example, the cam gear 161
Each gear ratio is set so that one rotation of the second intermediate gear 158 corresponds to one rotation of the above.

As shown in FIG. 18, the detecting section 162 has a second
The intermediate gear 158 is formed in a U-shape that faces the upper and lower surfaces of the intermediate gear 158. The sensor 163 is attached so as to face the upper board, and the light emitter 164 is attached so as to face the lower board.

The raising operation of the stocker 22 will be described below. When the stocker 22 is stopped, the second intermediate gear 158
Is the rotation detection hole 158a is the sensor 163 and the light emitter 16
It has stopped at the position corresponding to 4. Further, the stocker moving cam 23 has the inclined portion 23a facing rearward as shown in FIG. 15 and the flat portion 23b facing forward as shown in FIG. As shown in FIG. 14, the cam follower 62 meshes with the flat portion 23b of the stocker moving cam 23. Therefore, the cam follower 62 does not slide down on the inclined surface of the tooth groove, unlike the case of the cam configured by only the general inclined portion. As a result, the cam follower 62 is securely held, and the stocker 22 is positioned reliably and highly accurately.

For example, in order to raise one disk 1a, a command from the control unit 36 (FIG. 14) is received and
As shown in FIG. 7, the cam driving motor 151 rotates counterclockwise. This rotation is transmitted to the first intermediate gear 153 by the belt 152, and is transmitted to the second intermediate gear 153 by the first inner gear 154.
The intermediate gear 158 is rotated clockwise. The second intermediate gear 158 is connected to the third intermediate gear 160 via the second inner gear 159.
Rotate counterclockwise. The third intermediate gear 160 rotates the stocker moving cam 23 clockwise through the cam gear 161.

As shown in FIG. 14, the stocker moving cam 2
As the 3 rotates, the inclined portion 23 that was facing rearward
a rotates forward. At this time, the cam follower 62 is guided and moved by the inclined portion 23a, and the stocker 22 rises. As described above, the distance between the flat portions 23b is set to be the same as the distance between the disk holders 25a, so that when the stocker moving cam 23 makes one rotation, the stocker 22 moves up by one step of the disk holder 25a. Second intermediate gear 15 for one rotation of gear 161 for cam shown in FIG.
Since the rotation speed of 8 is one rotation, the control unit 36 issues an instruction to stop the rotation of the cam drive motor 151 (FIG. 14) at the time when the sensor 163 in FIG. 18 detects the light emission of the light emitter 164 once. Emit.

As a result, the stocker moving cam 23 shown in FIG. 14 is stopped by one rotation, and the stocker 22 moves to the disk 1a.
It goes up by one sheet and stops. At this time, the flat portion 23
Since "b" faces forward and meshes with the cam follower 62, the cam follower 62 is reliably held as before the raising operation, and the stocker 22 is positioned reliably and highly accurately. The lowering operation of the stocker 22 is performed by rotating the cam drive motor 151 in the opposite direction.
Further, the designated number of discs 1a can be raised by controlling the number of rotations of the stocker moving cam 23 according to the number of detections of light emission of the light emitter 164 (FIG. 14).

As described above, since the stocker 22 is moved up and down by the inclined portion 23a of the stocker moving cam 23 and the positioning is performed by the flat portion 23b, the stocker 22 can be positioned reliably and accurately with a simple structure. You can

Next, the disc attaching / detaching means and the action for attaching / detaching the disc 1a stored in the stocker 22 to / from the reproducing section 34 will be described. As shown in FIG. 1, the stocker moving cam 23 rotates and the stocker 22 moves up and down, so that the disc holder 25a on which the designated disc 1a is placed moves up or down to the height of the reproduction position. . Then, the disc 1a placed on the disc holder 25a is horizontally conveyed to the reproducing position by the disc conveying means, and the reproducing portion elevating means raises the reproducing portion 34 to clamp the disc 1a. In other words, the disc attaching / detaching means is composed of two continuously operating means, that is, a disc conveying means and a reproducing section raising / lowering means.

The means for attaching / detaching the disc 1a to / from the reproducing section 34 and the operation will be described below. FIG. 19 shows the arrangement of the disc 1a, the disc holder 25a, and the reproduction holding unit 35. A plate-shaped reproduction holding portion 3 that horizontally protrudes from the inner surface on the left side
Reference numeral 5 includes a front reproduction holding portion 35a arranged on the front side and a rear reproduction holding portion 35b arranged on the rear side.
The left and right inner surfaces of the cabinet 21 are provided with a straight left-right guide portion 191 and a right-edge guide portion 192 in the front-rear direction. The distance between the left-edge guide portion 191 and the right-edge guide portion 192 is adjusted to the width of the disc holder 25a. Is set. A holder hooking portion 194 is recessed at the front end of the left edge guide portion 191. In addition, a curved edge 193 is provided on the front surface side of the cabinet 21 according to the shape of the disk mounting portion 41 of the disk holder 25a.

A reproduction section 34 and a gear mounting section 185 are provided below the front reproduction holding section 35a and the rear reproduction holding section 35b, and an optical pickup section 181 and a turntable 182 are mounted on the reproduction section 34. There is. Playback part 3
4 is raised during the reproducing operation, and the optical pickup section 181 and the turntable 182 are inserted between the front reproduction holding section 35a and the rear reproduction holding section 35b.

On the other hand, on the gear mounting portion 185, the rear fixed gear 1 which is one of the disc conveying means is located at a position where it can mesh with the rack 47 of the second projecting portion 46 of the disc holder 25a.
84 is provided, and on the front side of the rear fixed gear 184, the front fixed gear 183 which is the other disc transport means is provided. The rear fixed gear 184 and the front fixed gear 183 have the same diameter.

As shown in FIG. 20A, the rear fixed gear 18
The first cutout portion 188a and the second cutout portion 188b in which teeth are not formed are provided at two positions in the entire circumference of No. 4 in FIG.
Further, in the state before the disc attaching / detaching operation, the rear fixed gear 1
The first notch 188a is arranged on the second protrusion 46 side so that the 84 does not interfere with the second protrusion 46 of the disc holder 25a, and the rear fixed gear 184 does not mesh with the rack 47. Therefore, the movement of the stocker 22 allows the disc holder 25a to freely move up and down without being interfered by the rear fixed gear 184.

FIG. 21 shows details of the driving means for the fixed gears 183 and 184. The front fixed gear 183 and the rear fixed gear 184 are respectively provided with inner gears 183a and 184a on the lower surface side that are smaller in diameter than the outer gears.
The inner gears 183a and 184a are set to have the same diameter,
The synchronous gear 186 meshes with both of them. A transmission gear 187 meshes with the synchronous gear 186.

On the other hand, an outer peripheral gear 204 is formed on the outer peripheral portion of the dual-purpose gear 201, and an inner peripheral gear 205 having a diameter smaller than that of the outer peripheral gear 204 is formed on the lower surface side over the half circumference. As shown in FIG. 22, the outer peripheral gear 204 of the dual-purpose gear 201 is provided with an upper meshing portion 204a having teeth over the entire circumference and teeth with a diameter substantially equal to that of the upper meshing portion 204a. Lower tooth part 2
04b are formed. The above-described transmission gear 187 meshes with the lower meshing portion 204b shown by the solid line in FIG. 21, and the drive gear 202 meshes with the upper meshing portion 204a shown by the two-dot chain line. Further, the elevating rack 211 of the sliding portion 209, which is the reproducing portion elevating means, meshes with the inner peripheral gear 205.

The drive gear 202 is fixed to the rotating shaft of a loading motor 203 mounted below the gear mounting portion 185. That is, since the upper meshing portion 204a of the dual-purpose gear 201 is provided over the entire circumference, the rotation of the drive gear 202 is always transmitted to the dual-purpose gear 201.
On the other hand, since the lower meshing portion 204b and the inner peripheral gear 205 of the dual-purpose gear 201 are provided only on substantially half circumferences, respectively, the transmission gear 187 and the lifting rack 211 that mesh with them.
The rotation transmission is switched at a predetermined timing.

As shown in FIG. 23, the reproducing section 34 is rotatably attached by a rotary shaft 221, and a cylindrical protrusion 222 is formed at the right end of the reproducing section 34. On the other hand, the inverted L-shaped sliding portion 209 includes a vertical surface portion 209a facing the reproducing portion 34 and a horizontal surface portion 209b arranged on the upper surface of the gear mounting portion 185. Side surface 20
A lifting rack 211 is provided on the edge of 9b, and this rack meshes with the inner peripheral gear 205 of the dual-purpose gear 201. Further, a lower projection 223 is provided on the lower surface side of the lateral surface portion 209b in the front-back direction (perpendicular to the paper surface), and this is inserted into the first guide groove 224 provided in the mounting portion 185. Further, the lower end of the vertical surface portion 209a is provided with a rightward protruding portion 225 that is bent toward the mounting portion 185 side, and this is the second guide groove 2 provided on the left side surface of the gear mounting portion 185.
26 has been inserted. Therefore, the sliding portion 209 is slidable in the front-rear direction (direction perpendicular to the paper surface). Further, a clamper 230 for clamping the disc 1a is rotatably attached to the lower side of the tray placing section 40, that is, the ceiling side of the reproduction holding section 35.

The vertical surface portion 209a of the sliding portion 209 is shown in FIG.
As shown in FIG. 4, an elevating guide groove 231 is provided, which includes a horizontal portion at the left end, a central portion inclined from the lower left to the upper right, and a horizontal portion at the right end. Then, the protruding portion 222 of the reproducing portion 34 is inserted into the elevating guide groove 231.

Disc 1a stored in stocker 22
21 is conveyed to the reproduction position, the loading motor 203 shown in FIG. 21 is rotationally driven in the counterclockwise direction, which causes the dual-purpose gear 201 to rotate in the clockwise direction and the transmission gear 187.
Rotates counterclockwise and the synchronous gear 186 rotates clockwise. The rotation of the synchronous gear 186 is caused by rotation of the internal gears 183a, 1
By being transmitted to 84a, the front fixed gear 183 and the rear fixed gear 184 rotate counterclockwise. The inner gear 183a,
Since the gear 184a has the same diameter, the teeth of the rack 47 and the front and rear fixed gears 183 and 184 are not transferred when the rack 47 is transferred between the front fixed gear 183 and the rear fixed gear 184 as shown in FIG. 20B. The front fixed gear 183 and the rear fixed gear 184 rotate in synchronization so as not to collide with each other.

As shown in FIG. 25, the rear fixed gear 184, which is rotationally driven, is mounted on the rack 47 of the disk holder 25a.
Disc 1 by engaging with and continuing to rotate
The disc holder 25a on which a is placed is slid forward. At this time, the inner peripheral gear 205 of the dual-purpose gear 201
Does not mesh with the lifting rack 211, the lifting rack 211 does not move. When the rear fixed gear 184 continues to rotate further, as shown in FIG.
The front fixed gear 183 meshes with the rack 47 before the second notch 188b of No. 4 comes around to the rack 47 side. Therefore, even while the second cutout portion 188b of the rear fixed gear 184 faces the rack 47 side, the front fixed gear 183 is also provided.
Thus, the disc holder 25a is sent further forward.

Further, as shown in FIG. 27, the left and right side surfaces of the disc holder 25a are in contact with the left edge guide portion 191 and the right edge guide portion 192, whereby the disc holder 25a
Is guided to slide forward. When the disc 1a reaches the reproduction position, the first projecting portion 44 of the disc holder 25a is hooked by the holder hooking portion 194, and the outer periphery of the disc placing portion 41 abuts the curved edge 193, whereby the disc holder 25a Is held at the playback position.
At this time, the turntable 182 and the optical pickup section 181 are arranged at the position of the reproducing hole 53 of the disc holder.

As shown in FIG. 28, the disc holder 2
When 5a is conveyed to the reproduction position, the lower meshing portion 204b of the dual-purpose gear 201 is disengaged from the transmission gear 187, so that the rotation of the loading motor 203 is not transmitted to the transmission gear 187. Therefore, the front fixed gear 183,
Rear fixed gear 184, synchronous gear 186 and transmission gear 18
7 stops.

The loading motor 203 continues to rotate after the disc holder 25a is completely conveyed, and then the reproducing unit 34 is raised. The loading motor 203 continues to rotate from the state of FIG. 28, and the dual-purpose gear 201 also rotates. At this time, the inner peripheral gear 205 of the dual-purpose gear 201 meshes with the lifting rack 211 for the first time. The rotation of the dual-purpose gear 201 is transmitted only to the lifting rack 211, which causes the sliding portion 20 to move as shown in FIG.
9 slides backwards. As a result, as shown in FIG. 30, the protrusion 222 of the reproducing portion 34 is guided by the elevating guide groove 231 and is carried to the upper right end. Therefore, as shown in FIG. 31, the reproducing unit 34 rotates counterclockwise about the rotation shaft 221 and ascends, and is arranged at a predetermined position.

As a result, the optical pickup section 181 and the turntable 182 project above the reproduction holding section 35 and are placed on the disc holder 25a.
a is sandwiched and clamped by the turntable 182 and the clamper 230, and the optical pickup unit 18
1 closely faces and faces the lower surface of the disk 1a. In this state, the disc 1a is rotated by the turntable 182, and the optical pickup section 181 reads the signal recorded on the disc 1a to perform a reproducing operation.

At this time, as shown in FIG. 28, the second cutout portion 188b of the rear fixed gear 184 faces the second protruding portion 46 side of the disc holders 25a other than the disc holder 25a during reproduction, and the rear fixed gear 184. Rack 47
Is not in mesh with. Therefore, even when the disc 1a is being reproduced, the other disc holder 25a can freely move up and down without being interfered by the rear fixed gear 184.

On the other hand, in the storing operation in the stocker 22, the loading motor 203 is rotationally driven in the opposite direction, that is, in the clockwise direction from the state of FIG. The disc holder 25a, on which the disc 1a is placed, moves downward and is stored in the stocker 22 as shown in FIG.

As described above, in this disc autochanger 20, by using the pair of fixed gears 183 and 184 as the disc conveying means, the disc 1a can be attached to and detached from the reproducing section 34 with a simple structure. Further, the disc holder 25 is attached to the rear fixed gear 183.
Each notch 188 for passing the 2nd protrusion part 46 of a.
Since a and 188b are provided, the disc holder 25a in the stocker 22 can freely move up and down.

Although the above description has been made for the case of using the disc 1a which is a CD having a diameter of 12 cm, the case where the disc 1b which is a CD having a diameter of 8 cm is used will be described next.

The disc autochanger 20 can also reproduce a disc 1b which is a CD having a diameter of 8 cm. As shown in FIG. 32, the stocker 22 also houses a disc holder 25b dedicated to the disc 1b.
The disc holder 25b has the same outer shape as the disc holder 25a for the disc 1a having a diameter of 12 cm. Therefore, storage in the stocker 22 described above,
Opening or closing operation of the tray 33 and the reproducing unit 34
For the disc mounting / removing operation to / from the disc holder 2
It is exactly the same as 5a.

At the center of the disc holder 25b, a diameter of 8
A circular disk mounting portion 251 matching the outer diameter of the disk 1b of cm is provided as a recess, and the disk 1b is mounted there. Further, a reproduction hole 53 is provided according to the position where the optical pickup section 181 and the turntable 182 are inserted. The detection holes 55a to 55g and the linear lever groove portion 56 along the front-rear direction are provided at the same positions as the disc holder 25a for the disc 1a.

At the front right and the rear left of the disc mounting portion 251, a long plate-shaped first holding lever 252 and a rectangular second holding lever 253 as holding means for the disc 1b are respectively provided on the lower surface side of the disc holder 25b. 25
4, 255 are rotatably attached. The long holes 2 corresponding to the rotation ranges of the holding portions 256 and 257, which will be described later, are formed on the outer peripheral portions of the disk mounting portion 251 on the front right and the rear left.
58 and 259 are provided.

As shown in FIG. 33, the first pressing lever 252 has a long plate-shaped longitudinal portion 231 and a disc 1b at the tip thereof.
It is configured by a claw-shaped first holding portion 256 provided toward the side, and the rotating shaft 254 is attached to substantially the center of the longitudinal portion 231. In the figure, for easy understanding, the disc holder 25b is omitted and the first pressing lever 252,
Only the disk 1b and the slot 258 are shown.
The first holding portion 256 is inserted from the lower surface to the upper surface of the disc holder 25b (FIG. 32) through the elongated hole 258.
A circular abutting protrusion 232 is provided on the lower surface side so as to project at the end of the longitudinal portion 231 opposite to the first holding portion 256. An engaging portion 233 is recessed in the center of the longitudinal portion 231, and an engaging protrusion 234 formed on the lower surface of the disc holder 25b is inserted into and engaged with the engaging portion 233. In this state, the first holding portion 256 is in contact with the upper surface beyond the outer peripheral edge of the disc 1b, and the disc 1b is securely held.

On the other hand, as shown in FIG. 34, the second pressing lever 253 is composed of a rectangular portion 236 and a claw-shaped second holding portion 257 protruding toward the disc 1b. In the figure, the main body of the disc holder 25b is shown by a chain double-dashed line to facilitate understanding, and the second holding lever 253, the disc 1b, and the stocker 22 are shown.

As shown in the figure, the second holding portion 257 is inserted from the lower surface to the upper surface of the disc holder 25b through the elongated hole 259. On the side of the stocker 22 of the rectangular portion 236, the contact foot portion 2 formed in a plate shape so as to be elastically deformable
41 is provided, and the apex portion 23 of the triangular shape that abuts the inner surface of the stocker 22 is provided at the tip of the abutment foot portion 241.
9 is molded, and the tip end of the contact foot portion 241 is a projecting tip portion 240 that is directed obliquely inward of the stocker 22.
In addition, on the lower surface of the rectangular portion 236, a long plate-shaped guide plate portion 242 is formed.
Are formed.

The apex portion 239 of the abutment foot portion 241 abuts on the inner surface of the stocker 22, and the guide plate portion 242 is inserted into the stocker bottom surface groove 243 provided on the bottom surface of the stocker 22 in the front-rear direction. The second pressing lever 253 is held at a predetermined position. At this time, the second holding unit 257
Touches the upper surface beyond the outer edge of the disc 1b, and the disc 1b is securely held.

As shown in FIG. 35, the holder mounting portion 91
A triangular protrusion 115 and an abutting portion 113 having a triangular shape are provided on the. The contact portion 113 is composed of a first contact surface 113a and a third contact surface 113c along the left-right direction, and a second contact surface 113b and a fourth contact surface 113d along the diagonal direction. . In addition, as shown in FIG.
Is a straight part 115a on the left side and a horizontal part 115b on the front side.
It consists of and.

The operation of the pressing levers 252 and 253 when the tray 33 is opened and closed will be described below. As shown in FIG. 35, the disc holder 25
When "b" is stored in the stocker 22, the disc 1b is held by the disc mounting portion 251 by the first pressing lever 252 and the second pressing lever 253, so that the disc 1b is prevented from falling off or being displaced in the apparatus. It

When the opening operation of the tray 33 is started and the disc holder 25b slides forward, as shown in FIG.
As shown in FIG.
Passes the side of the linear portion 115a of the triangular protrusion 115, contacts the third contact surface 113c of the contact portion 113, and
The contact surface 113d contacts the rear portion of the longitudinal portion 231. As a result, the first pressing lever 252 rotates clockwise, and the locking protrusion 234 of the disc holder 25b is disengaged from the locking portion 233 of the first pressing lever. Therefore, the first holding portion 256 retracts from the upper surface of the disc 1b.

On the other hand, the second pressing lever 253 is shown in FIG.
As shown in FIG. 7, when the disc holder 25b is slid forward, the apex 239 of the abutment leg 241 abuts the inner wall of the stocker 22, and the guide plate 242 remains inserted in the stocker bottom groove 243. , Slide forward. Then, when it is pulled out from the stocker 22 and starts to slide on the tray 33 as shown in FIG. 37, the guide plate portion 242 is guided to the engagement guide groove 105 by the curved portion 105 a of the engagement guide groove 105. At this time, the second holding lever 253 rotates counterclockwise to move the second holding portion 257.
Escape from the top surface of the disk 1b. At the same time, the contact foot portion 241 is inserted into the holding lever guide portion 100 recessed in the left side surface of the left edge guide portion 101. Further, the guide plate portion 242 is pressed against the right side surface of the engaging portion guide groove 105.
Therefore, the second pressing lever 253 rotates counterclockwise, and the second holding portion 257 is held in a state of being retracted from the upper surface of the disc 1b.

When the opening of the tray 33 is completed, FIG.
As shown in FIG. 8, the holding levers 252 and 253 rotate clockwise and counterclockwise, respectively, to move the holding portions 25
The user can replace the disk 1b because the disks 6 and 257 are retracted from the upper surface of the disk 1b.

When the tray 33 is closed, as shown in FIG.
As shown in FIG. 9, the contact protrusion 23 of the first pressing lever 252
2 contacts the horizontal portion 115b on the front side of the triangular projection 115, the first pressing lever 252 rotates counterclockwise, and the locking portion 233 is locked again by the locking projection 234. After the locking portion 233 is locked, the contact protrusion 232 is moved to the horizontal portion 115.
It is guided by b and passes the left side of the triangular protrusion 115.

On the other hand, the second pressing lever 25 shown in FIG.
With respect to No. 3, the contact foot 241 is guided to the curved portion on the left side surface of the lever guide 100 with the rearward movement of the disc holder 25b, and the second pressing lever 253 rotates clockwise. Therefore, immediately before the disk holder 25b is stored in the stocker 22, the guide plate portion 242 and the stocker bottom surface groove 243 are aligned with each other. In this state, the contact foot portion 241 is guided to the inner surface side of the stocker 22, and the guide plate portion 242 is inserted into the stocker bottom surface groove 243 again.

Thus, when the disc holder 25b is stored in the stocker 22 as shown in FIG.
Holding portions 256, 25 of the pressing levers 252, 253
7 holds the disc 1b in place. In the above description, one of the seven disc holders 25b housed in the stocker 22 has been described, but the other six disc holders 25b are similarly formed.

Further, as shown in FIG. 19, a triangular protrusion 115 and an abutting portion 113 are also formed on the front reproduction holding portion 35a, and a pressing lever guide portion 100 is provided on the left edge guide portion 191 thereof. Therefore, the pressing levers 252 and 253 also rotate in the same manner when the disc is attached and detached.
Therefore, when the disc 1b is transported to the reproducing position, the pressing levers 252 and 253 are retracted to the positions where they do not interfere with the disc 1b, so that the disc 1b is rotated by the turntable 182 and the clamper 230 as shown in FIG.
It is clamped at and can be rotated.

As described above, the disc 1 having a diameter of 8 cm
Since b is held by the two holding levers 252 and 253 inside the disc auto changer 20,
Disk 1 inside the device even when shaken or shocked
It is possible to prevent b from falling off or being displaced. The holding levers 252 and 253 can also be attached to the disc holder 25a dedicated to the disc 1a having a diameter of 12 cm.

Now, this disc autochanger 20
Can use both a disc 1a having a diameter of 12 cm and a disc 1b having a diameter of 8 cm, and further used disc 1
It is possible to detect the type and presence / absence of a and 1b, erroneous operation by the user, and the like. Next, the discriminating means and operation of the disks 1a and 1b will be described.

As shown in FIG. 2, in the disc holder 25a for the disc 1a having a diameter of 12 cm, seven detection holes 55a to 55g are arranged at positions asymmetrical with respect to the center of the disc 1a along the front-rear direction. It is provided in a row. On the other hand, as shown in FIG. 32, each of the detection holes 55a to 55g is formed in the disc holder 25b for the disc 1b having a diameter of 8 cm.
Is provided at the same position as the disc holder 25a for the disc 1a, and three detection holes 55c to 55e are arranged on the bottom surface of the disc mounting portion 251. As shown in FIG. 6, the bottom surface 97 of the tray 33 is provided with detection holes 55h and 55i on the same line of each detection hole 55 and at positions near the stocker 22. The detection holes 55i and 55h are arranged on the same line along the left-right direction.

Further, as shown in FIG. 5, the positions where the detection holes 55a, 55c, 55e, 55g of the disc holder 25a and the detection holes 55h (FIG. 6) of the tray 33 pass and the detection holes 55b, 55d of the disc holder 25a. , 55f
Two sensors 86a and 86b, which are light receiving bodies, are provided in the tray mounting portion 40 at positions where the detection holes 55i (FIG. 6) of the tray 33 pass. Further, as shown in FIG. 40, the sensor 86 is provided on the ceiling side of the tray placing section 40.
Light emitters 260a and 260b are attached corresponding to a and 86b, respectively.

Further, as shown in FIG. 41, a plate-shaped timing lever 261 is vertically arranged on the right side surface of the tray 33, and the timing lever 261 is rotatably attached by a rotary shaft 264 and is also appropriately arranged. It is biased counterclockwise by a biasing means (not shown). A tray contact portion 262 is formed to project inward from the upper end of the timing lever 261, and a switch pressing portion 263 is formed to project inward from the lower end of the timing lever 261. This switch pressing portion 26
3 is disposed at a predetermined distance from the contact 266 of the push switch 265. On the other hand, as shown in FIG. 42, the lever sliding surface 26 provided on the right side surface of the tray 33.
9 has three timing grooves 271a, 271b, 27
1c is provided, and when the tray 33 is closed, the timing lever 261 is provided in the timing groove 269a on the forefront side.
The tray contact portion 262 is inserted.

The disc discrimination operation is performed as follows. When the tray 33 is open, the tray contact portion 262 of the timing lever 261 is inserted into the timing groove 271c at the rearmost portion as shown in FIG. Therefore, as shown in FIG. 41, the switch pressing portion 263 is separated from the contact 266 of the push switch 265. When the sliding operation of the tray 33 to the rear is started after the user mounts the disc 1 a, the tray contact portion 262 of the timing lever 261 shown in FIG. 43 causes the tray 33 to slide rearward from the timing groove 271 c. It disengages and slides on the lever sliding surface 269 to move. As a result, the timing lever 261 shown in FIG. 41 rotates clockwise against the biasing force, and the contact 2 of the push switch 265 is contacted.
Press 66. By this operation, push switch 2
65 is turned on, and this signal is sent to the control unit 36 (FIG. 1) to start the disc discriminating operation. As described above, the pull-out lever 121 (FIG. 12) also slides the disc holder 25a backward at the same time. Since the moving speed of the disc holder 25a to the rear is almost twice as fast as that of the tray 33, the disc holder 25a is moved to the sensors 86a, 86 before the tray 33 as shown in FIG.
Pass over b.

When the disc discriminating operation is started, the light emitters 260a and 260b (FIG. 40) emit light, respectively.
The detection holes 55a-5 of the disk holder 25a shown in FIG.
When 5 g has passed, the sensors 86a and 86b detect the light emitted from the light emitters 260a and 260b. And FIG.
Immediately before the tray 33 is closed, the disc holder 25a has two detection holes 55h,
55i, and the detection holes 55h, 55
The sensors 86a, 86b are connected to the light emitters 260a,
The light emission of 260b is detected.

The last detection holes 55h and 55i are the sensors 8
At the moment when it passes over 6b, the tray contact portion 262 of the timing lever 261 shown in FIG.
41, the timing lever 261 rotates counterclockwise and separates from the contact 266 of the push switch 265 as shown in FIG. Thereby, the control unit 36 (FIG. 1) detects that the passage of all the detection holes 55a to 55i is completed as shown in FIG. 45, and at this moment, the detection result of the light emission of the detection holes 55a to 55i is displayed. Based on this, the control unit 36 (FIG. 1) determines the state of the disc 1.

When the closing of the tray 33 is completed, FIG.
2, the tray contact portion 262 of the timing lever 261 is inserted into the timing groove 271c, and the switch pressing portion 263 is connected to the push switch 26 as shown in FIG.
5 contact point 266. As a result, the control unit 36
(FIG. 1) ends the disc 1 discriminating operation.

As described above, the sensors 86a and 86b detect the light emitted from the light emitters 260a and 260b by the detection holes 55a to 55, respectively.
Detected a total of 9 times through i. When the disk 1 is placed, the light emission passing through the predetermined detection holes 55a to 55i is blocked, so that it is possible to detect the type and presence / absence of the disk 1 and erroneous operation by the user. FIG. 46 shows all cases (normal operation and erroneous operation) in which the discriminating operation of the type and presence / absence of the disk 1 can be assumed. Hereinafter, each case will be described.

FIG. 46A shows the case where the disc 1 is not placed on the disc holder 25. In this case, since the light emitted from the light emitters 260a and 260b passes through all the detection holes 55a to 55i, the sensors 86a and 8
6b detects all these emissions. Therefore, the control unit 36 recognizes that the disc 1 is not placed on the disc holder 25.

FIG. 46 (b) shows a case where the disk 1a having a diameter of 12 cm is normally mounted on the disk holder 25a. In this case, as shown in FIG. 44, with respect to the detection holes 55a to 55g of the disc holder 25a, the light emitting member 26
Since the light emitted from 0a and 260b is blocked by the disk 1a itself, the sensors 86a and 86b do not detect this. Then, as shown in FIG. 45, the detection hole 5 of the tray 33 is
Light emission is detected for 5h and 55i.

FIG. 46C shows the case where the disk 1b having a diameter of 8 cm is normally mounted on the disk holder 25b. In this case, as shown in FIG. 32, the disc holder 2
Since the three detection holes 55c to 55e of 5b are arranged on the bottom surface of the disc mounting portion 251, the detection holes 55c to 5e are formed.
Only for 5e, the light emitted from the light emitters 260a, 260b is blocked by the disk 1a itself, and the sensors 86a, 86
b does not detect this. Therefore, the detection holes 55a, 5
Light emission is detected only for 5b and 55f to 55i.

As described above, when the disc 1 is not present or when the disc 1 is properly placed, the tray 33 normally performs the closing operation and the disc holder 25a or 2
5b is stored in the stocker 22. Next, a case where the user makes an erroneous operation will be described.

46 (d) and 46 (e) show the case where the user mistakenly overlaps two discs 1 and performs the closing operation. FIG. 46D shows a case where the disc 1b is overlaid on the disc 1a. In this case, the detection holes 55a to 55g of the disc holder 25a are not detected by the sensors 86a and 86b because the discs 1a themselves block the light emitted from the light emitters 260a and 260b. This is similar to the case of FIG. However, as shown in FIG. 44, the disc 1a placed on the disc holder 25a normally slides to the stocker 22 side, but the disc 1b laid on the disc 1a abuts on the edge of the hole 139 of the tray cover 138. Left behind. Then, as shown in FIG. 47, the disc holder 2
Immediately before the 5a slips out of the tray 33, one edge of the disc 1b slides down onto the holder mounting portion 91 of the tray 33. At this moment, as shown in FIG. 45, the detection holes 55h and 55i of the tray 33 are connected to the sensors 86a and 86i.
Pass over b. That is, either or both of the detection holes 55h and 55i are blocked by the disk 1b,
Sensor 86a or 86b does not detect light emission for these.

When no light emission is detected in the detection holes 55h and 55i, the control unit 36 (FIG. 1) recognizes this as a malfunction. As described above, this determination operation is performed at the moment when the last detection hole 55i passes over the sensor 86b, that is, immediately before the tray 33 is completely closed, and the closing operation is stopped at that time, and the tray 33 is removed. Open it forward. At this time, as shown in FIG. 47, one edge of the disc 1b has fallen onto the tray mounting portion 91, but the other edge still rests on the upper surface of the disc 1a. Therefore, at this time, when the tray 33 slides in the opposite direction, that is, forward, the disc 1b is placed on the upper surface of the disc 1a again, and when the tray 33 is completely opened, the disc 1b is placed on the disc 1a. Is reproduced, and the user can easily remove the disk 1b that has caused the erroneous operation.

FIG. 46 (e) is the same as when the disc 1a is placed on the disc 1b, and one edge of the disc 1a falls on the tray mounting portion 91, and both of the detection holes 55h and 55i are detected. The sensor 86a or 86b does not detect light emission. Therefore, the control unit 36 (FIG. 1) interrupts the closing operation at that time and opens the tray 33 forward.

FIG. 46 (f) shows the case where the user mistakenly puts the disk 1b having a diameter of 8 cm on the disk holder 25a dedicated to the disk 1a having a diameter of 12 cm. Figure 2
As shown in FIG. 48, since the disc mounting portion 41 of the disc holder 25a is set to have a diameter for the disc 1a, the position of the disc 1b is not specified within the range of the disc mounting portion 41 as shown in FIG. Become. However, as shown in the same figure, no matter where the disc 1b is, the tray 3
When the disc 3 starts the closing operation, the disc 1b starts sliding because the frictional force on the lower surface side thereof is very small and moves to the front part of the disc mounting portion 41. Therefore, the detection hole 55
One or both of d and 55e are blocked. In this case,
The control unit 36 recognizes this as a malfunction, interrupts the closing operation at that time, and opens the tray 33 forward.

FIG. 46 (g) shows a disk 1b having a diameter of 8 cm.
This is a case in which the disk 1a having a diameter of 12 cm is placed on the disk holder 25b for use with. Disc holder 25
32. As shown in FIG. 32, the disk mounting portion 251 is recessed in accordance with the outer diameter of the disk 1b, so that the disk 1a having a larger diameter cannot be mounted on the disk mounting portion 251. Therefore, as in the case of FIGS. 46D and 46E, as shown in FIG. 47, as shown in FIG. 47, the tray cover 138 abuts on the edge of the hole 139 and is left behind, and the disc is placed on the holder mounting portion 91. One edge of 1a falls. Therefore, in the case of FIG.
No light emission is detected for 5h and 55i. Therefore, the control unit 36 recognizes this as a malfunction, interrupts the closing operation at that time, and opens the tray 33 forward.

The above discriminating operation is summarized as follows.
The size and presence / absence of can be determined by FIGS. 4 (a) to 4 (c). Also, regarding normal operation and erroneous operation, only when all the light emission passing through the detection holes 55c to 55e is detected or not detected, and in addition, when light emission is detected at both the detection holes 55h and 55i. Is determined to be a normal operation, and otherwise is determined to be an erroneous operation by the user.

In the above-described embodiment, the case where a transmissive sensor in which the light emitting members 260a and 260b and the sensors 86a and 86b are combined is used as the detecting means has been described. However, the light reflected on the disc surface of the disc 1 is detected. A reflective sensor may be used.

As described above, the disc autochanger 20 always stores the disc 1 in the stocker 22 in a proper state by discriminating the malfunction of the user.

Furthermore, this disc autochanger 20
Then, the user can freely replace the disc holder 25. As described above, the degree of engagement of the tray cover 138 shown in FIG. 12 is set so that the tray cover 138 can be easily removed. Therefore, by removing the tray cover 138 (FIG. 7) with the tray 33 opened, the disc holder 2
5 is exposed. By exchanging the disc holders 25 in this state, the user can freely set the combination of the seven disc holders 25a and 25b in the stocker 22. In addition, the disk holder 25a,
When it is not necessary to set the combination of 25b and change it, by fixing the tray cover 138 to the tray 33, the tray cover 138 is lost,
There is no risk of damage during handling.

Next, this disc autochanger 2
Various operations of 0 will be described.

The initial setting mode is performed as follows when the power is turned on or reset. If the tray 33 is open, it is closed. In addition, the reproducing unit 34
If is rising, lower it. Further, the stocker 22 is moved to the lowest position. For example, when the power is turned on or at the time of resetting, for example, as shown in FIG. 49, if the third-stage disc 1 is clamped by the reproducing unit 34, the reproducing unit 34 is first lowered (FIG. 50), and then the disc 1 The mounted disk holder 25 is stored in the stocker 22 (FIG. 51), and the stocker 22 is moved to the lowest position (FIG. 52). This state is the initial setting state.

When the open mode of the tray 33 is in the initial setting state as shown in FIG.
The disc holder 25, on which the designated disc 1 is placed, is moved, for example, the stocker 22 is moved to carry the first stage disc holder 25 to the height of the tray 33 (see FIG.
4) Next, the disc 1 and the disc holder 25 are conveyed to the tray 33 (FIG. 55), and then the tray 33 is opened (FIG. 56). Further, as shown in FIG. 57, when the disc 1, for example, the disc 1 in the third stage is held by the reproducing unit 34, the reproducing unit 34 is first lowered (FIG. 58), and then the disc on which the disc 1 is placed. The holder 25 is stored in the stocker 22 (Fig. 59), and the stocker 2
2 moves to carry the disc 1 to the height of the tray 33 (FIG. 60). Then, the disc 1 and the disc holder 25 are conveyed to the tray 33 (FIG. 61), and the tray 33 is opened (FIG. 62).

In the holder designation open mode, the disc holder 25 designated by the user is opened. For example, as shown in FIG. 63, the disc 1 in the third stage is the reproducing section 3
When the disc holder 1 is designated while being held by the No. 4, the reproducing unit 34 is first lowered (see FIG.
4) Next, the disc holder 25 on which the disc 1 is placed
Is stored in the stocker 22 (FIG. 65), and the stocker 22 moves to carry the first-stage disc holder 25 to the height of the tray 33 (FIG. 66). Then, the first-stage disc holder 25 is conveyed to the tray 33 (FIG. 67), and the tray 33 is opened (FIG. 68).

In the playback mode, when the disc 1 is in the initial setting state as shown in FIG. 69, the first-stage disc 1 and the disc holder 25 are transported to the playback position (FIG. 70), and the playback section 34 is raised to raise the disc. 1 is reproduced (Fig. 7
1). In this reproduction mode, the disc 1 placed at the same height as the reproduction position is reproduced. If the disc 1 is already held by the reproducing unit 34, the disc 1 is reproduced as it is.

In the direct reproduction mode, when the disc 1 is held by the reproducing section 34, another disc 1 specified by the user can be reproduced. For example, as shown in FIG. 72, the third-stage disc 1 is the reproducing unit 3
When the user designates the reproduction of the disc 1 of the seventh stage while the disc holder 25 is held by the disc 4, the reproducing unit 34 is first lowered (FIG. 73), and then the disc holder 25 on which the disc 1 of the third stage is placed. Are stored in the stocker 22 (FIG. 7).
4). Next, the stocker 22 moves to carry the disc 1 and the disc holder 25 in the seventh stage to the height of the reproducing position (Fig. 75), and the disc 1 and the disc holder 25 in the seventh stage are conveyed to the reproducing position (Fig. 76). ), The reproducing unit 34 moves up and the disc 1 is reproduced (FIG. 77).

In the disc change mode, the disc 1
It is possible to store and replace the other disk 1 in the stocker 22 during the reproduction of. For example, as shown in FIG. 78, when the disc change mode is specified by the user while the third-stage disc 1 is being reproduced, the reproducing operation is continued as it is, and the stocker 22 is raised to raise the disc 1 being reproduced. The lower stage, that is, the fourth stage disc holder 25 is carried to the height of the tray 33 (FIG. 79). Then, the disc holder 25 is conveyed to the tray 33 (FIG. 80), and the tray 33 is opened (FIG. 81).
Here, the user mounts the disc 1. After that, the tray 33 is closed (FIG. 82), and the disc holder 25 of the fourth stage on which the disc 1 newly added is placed.
Is stored in the stocker 22 (FIG. 83), and the stocker 22 moves to the position before the start of the disc change mode (FIG. 8).
4). In this disc change mode, if the disc holder 25 is not designated, the disc holder 25 one stage below the disc 1 being reproduced is opened. When the user designates a specific disc holder 25 with a key (not shown) on the front surface of the cabinet 21, the disc holder 25 is opened.

As described above, in this disc autochanger 20, the tray 33 can be opened or closed while the reproducing section 34 is operating, so that the disc 1
It is possible to store and replace another disk 1 in the stocker 22 during the reproduction of the.

FIG. 85 shows the structure of the disc auto changer 30 of the second embodiment. The disc autochanger 30 further directly attaches the disc 1 to the reproducing section 34.
A sub-tray 301 for attaching / detaching is attached to the disc auto changer 20 of the first embodiment.
Unlike the tray 33, the sub-tray 301 performs the open or close operation by directly mounting the disc 1 without mounting the disc holder 25.

The disc auto-changer 30 has a temporary reproduction mode in addition to the above-mentioned operation modes of the disc auto-changer 20. The temporary playback mode is
For example, the sub-tray 301 is opened from the state shown in FIG. 86, and the disc 1 which the user wants to play temporarily is placed there (FIG. 87). After that, the sub-tray 301 is closed and the disc 1 is placed at the reproduction position (FIG. 88).
The reproducing unit 34 moves up and reproduction is performed (FIG. 89). Therefore, in this temporary reproduction mode, the user can directly reproduce the external disk 1 without carrying out complicated storage and exchange of the disk 1.

In this way, the disc autochanger 3
In the case of 0, since the external disc 1 can be directly attached / detached to / from the reproducing section 34 without storing or exchanging the external disc 1 in the stocker 22, the user can temporarily reproduce the external disc 1 by a simple operation.

[0130]

As described above, the autochanger according to the present invention has an entrance / exit means for inserting / removing the recording medium into / from the movable accommodating means for accommodating the recording medium in the cabinet. A determination means for determining the state of the medium is provided, and at least the holder mounting portion, the extraction hole, and a plurality of detection holes for detecting the two-sheet overlapping mounting are provided in the insertion / removal means, and the detection hole is a cabinet. A position immediately before the closing of the loading / unloading means with respect to the exit / entry means, and is arranged near the rear part of the bottom surface of the holder mounting portion of the loading / unloading means. Is in contact with the edge of the hole and blocks the detection hole in the state left behind.

With this configuration, the discriminating means can detect the second recording medium which is in contact with the edge of the hole just before the entrance / exit means is closed to the cabinet and left behind, so that the user mistakenly detects it. The closing operation can be stopped when two recording media are attached to the access means. This prevents a user's erroneous operation in advance, and thus has the effect of preventing damage to the recording medium and device failure.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an autochanger 20 that is a first embodiment according to the present invention.

FIG. 2 is a configuration diagram of a stocker 22 and a disc holder 25a.

FIG. 3 is a top view showing the shape of a leaf spring 65.

FIG. 4 is a side sectional view showing the structure of the stocker 22.

5 is a cross-sectional view taken along the line AA of FIG.

6 is a top view showing the shape of the tray 33. FIG.

FIG. 7 is a top view showing the shape of a pull-out lever 121.

8 is a cross-sectional view taken along line BB of FIG.

FIG. 9 is a diagram showing an opening operation (1/2) of the tray 33.

FIG. 10 is a diagram showing engagement of a holder engagement portion 137.

FIG. 11 is a diagram showing an opening operation (2/2) of the tray 33.

FIG. 12 is a top view showing a state in which the opening operation of the tray 33 is completed.

FIG. 13 is a diagram showing a state of the short-side portion 131 during the closing operation.

14 is a side view of a stocker moving cam 23. FIG.

FIG. 15 is a sectional view taken along line CC of FIG.

16 is a cross-sectional view taken along line DD of FIG.

FIG. 17 is a configuration diagram of a drive unit of the stocker moving cam 23.

FIG. 18 is a sectional view of a detection unit 162.

FIG. 19 is a top view showing the arrangement of fixed gears 183 and 184.

FIG. 20 is a top view showing the shapes and operations of fixed gears 183 and 184.

FIG. 21 is a configuration diagram of driving means for fixed gears 183 and 184.

22 is a view on arrow E of the dual-purpose gear 201 of FIG. 21. FIG.

FIG. 23 is a configuration diagram of a reproduction unit 34.

24 is a view of the sliding portion 209 of FIG. 21 as seen in the direction of arrow F. FIG.

FIG. 25 is a transportation operation of the disc holder 25a (1 /
It is a figure which shows 2).

FIG. 26 shows a transport operation of the disc holder 25a (2 /
It is a figure which shows 2).

FIG. 27 is a top view showing a completed state of the transport operation of the disc holder 25a.

FIG. 28 is a top view showing the state of each gear at the completion of the carrying operation.

FIG. 29 is a top view showing the state of each gear when the raising operation of the reproducing section is completed.

30 is a view of the sliding portion 209 of FIG. 29 as viewed in the direction of arrow G. FIG.

FIG. 31 is a cross-sectional view showing a state when the raising operation of the reproducing section is completed.

FIG. 32 is a configuration diagram of a disc holder 25b.

FIG. 33 is a top view showing the shape of the first pressing lever 252.

FIG. 34 is a top view showing the shape of a second pressing lever 253.

FIG. 35 is a top view showing a state of each holding lever 252, 253 when stored.

FIG. 36 is a top view showing a state of the first pressing lever 252 when opened.

FIG. 37 is a top view showing the rotation of the second pressing lever 253.

FIG. 38: Pressing levers 252, 253 when opened
It is a top view which shows the state of.

FIG. 39 is a top view showing the rotation of the first pressing lever 252 during the closing operation.

FIG. 40 is a block diagram of a disc discriminating means.

41 is a cross-sectional view taken along line HH of FIG. 7.

42 is a cross-sectional view taken along the line I-I of FIG. 41.

FIG. 43 is a view showing the operation of the timing lever 261.

FIG. 44 is a diagram showing a discriminating operation (1/2) of the disc 1.

FIG. 45 is a diagram showing a discriminating operation (2/2) of the disc 1.

FIG. 46 is a diagram showing a discriminating operation of the disc 1.

FIG. 47 is a disk 1 in the case of FIGS. 46 (d) and (e).
It is a cross-sectional view showing the state of.

48 is a top view showing the state of the disc 1b in the case of FIG. 46 (f).

FIG. 49 is an explanatory diagram of operations in the initial setting mode (1/4).

FIG. 50 is an explanatory diagram of operations in the initial setting mode (2/4).

FIG. 51 is an explanatory diagram of operations in the initial setting mode (3/4).

FIG. 52 is an explanatory diagram of operations in the initial setting mode (4/4).

FIG. 53: Open mode (1/4) in the initial setting state
FIG. 7 is an operation explanatory diagram of

[Fig. 54] Open mode (2/4) in the initial setting state
FIG. 7 is an operation explanatory diagram of

[Fig. 55] Open mode (3/4) in the initial setting state
FIG. 7 is an operation explanatory diagram of

[Fig. 56] Open mode (4/4) in the initial setting state
FIG. 7 is an operation explanatory diagram of

FIG. 57 is an operation explanatory diagram of the open mode (1/6) when the disc 1 is clamped.

FIG. 58 is an explanatory diagram of an operation in the open mode (2/6) when the disc 1 is clamped.

FIG. 59 is an operation explanatory diagram of the open mode (3/6) when the disc 1 is clamped.

FIG. 60 is an operation explanatory diagram of the open mode (4/6) when the disc 1 is clamped.

FIG. 61 is an operation explanatory diagram of the open mode (5/6) when the disc 1 is clamped.

FIG. 62 is an operation explanatory diagram of the open mode (6/6) when the disc 1 is clamped.

FIG. 63 is an operation explanatory diagram of a holder designation open mode (1/6).

FIG. 64 is an operation explanatory diagram of a holder designation open mode (2/6).

FIG. 65 is an operation explanatory diagram of a holder designation open mode (3/6).

FIG. 66 is an operation explanatory diagram of a holder designation open mode (4/6).

FIG. 67 is an explanatory diagram of an operation in the holder designation open mode (5/6).

[Fig. 68] Fig. 68 is an explanatory diagram of operations in the holder designation open mode (6/6).

FIG. 69 is an explanatory diagram of an operation in a reproduction mode (1/3).

FIG. 70 is an explanatory diagram of an operation in a reproduction mode (2/3).

71 is an explanatory diagram of the operation in the reproduction mode (3/3). FIG.

FIG. 72 is an explanatory diagram of the operation in the direct reproduction mode (1/6).

[Fig. 73] Fig. 73 is an explanatory diagram of the operation in the direct reproduction mode (2/6).

FIG. 74 is an explanatory diagram of the operation in the direct reproduction mode (3/6).

[Fig. 75] Fig. 75 is an explanatory diagram of operations in the direct reproduction mode (4/6).

[Fig. 76] Fig. 76 is an explanatory diagram of operations in the direct reproduction mode (5/6).

[Fig. 77] Fig. 77 is an explanatory diagram of operations in the direct reproduction mode (6/6).

[Fig. 78] Fig. 78 is an explanatory diagram of operations in the disc change mode (1/7).

FIG. 79 is an explanatory diagram of an operation in the disc change mode (2/7).

FIG. 80 is an explanatory diagram of an operation in the disc change mode (3/7).

FIG. 81 is an explanatory diagram of operations in the disc change mode (4/7).

FIG. 82 is an explanatory diagram of an operation in the disc change mode (5/7).

[Fig. 83] Fig. 83 is an explanatory diagram of operations in the disc change mode (6/7).

[Fig. 84] Fig. 84 is an explanatory diagram of operations in the disc change mode (7/7).

FIG. 85 is a configuration diagram of an autochanger 30 which is a second embodiment according to the present invention.

FIG. 86 is an explanatory diagram of the operation in the temporary reproduction mode (1/4).

FIG. 87 is an explanatory diagram of the operation in the temporary reproduction mode (2/4).

[Fig. 88] Fig. 88 is an explanatory diagram of operations in the temporary reproduction mode (3/4).

FIG. 89 is an explanatory diagram of operations in the temporary reproduction mode (4/4).

90 is a block diagram of a conventional disc auto changer 10. FIG.

[Fig. 91] Fig. 91 is a diagram showing a procedure of a disk storing and reproducing operation of a conventional example.

[Explanation of symbols]

1,1a, 1b disk 10, 20, 30 Disc auto changer 12,22 Stocker 13,34 Playback section 14,33 trays 23 Stocker movement cam 25,25a, 25b disk holder 28 Doorway 35 Playback holding section 36 Control unit 40 Tray mounting part 55a to 55i detection hole 86a, 86b sensor 121 Drawer lever 138 tray cover 139 hole 260a, 260b luminous body 261 Timing lever 269 Lever sliding surface

Claims (5)

(57) [Claims] 1. A plurality of discs are selectively played and exchanged.
An automatic changer, a cabinet, a reproducing means provided in the cabinet, and a plurality of mounting means for mounting and moving or holding a recording medium to be mounted on the reproducing means at a predetermined position, Movable storage means for storing each of the above-mentioned placing means , and the above-mentioned placing means from the storing means can be moved back and forth.
And can be put in and taken out from the cabinet
And and out means are made, a plurality of the state of the recording medium mounted on the mounting means on and out means determines a discrimination unit, the and out means for mounting detection superimposed unplug holes and two with edges The detection hole is a position immediately before the closing of the loading / unloading means with respect to the cabinet, and is arranged near the rear part of the bottom surface of the loading / unloading means, and one recording medium is inserted in the loading / unloading means. When the storage medium is mounted, the storage medium is moved forward by the mounting means on the loading / unloading means.
To the inspection hole without touching the edge of the hole.
When the recording medium passes through the exit hole and is moved to the storage means, and two recording media are loaded in the entrance / exit means, the first storage medium is moved forward by the placing means and the detection is performed. To pass through the hole and to the storage means
An automatic changer which is moved so that the second recording medium comes into contact with the edge of the punched hole and is left behind, and the second recording medium blocks the detection hole. 2. The autochanger according to claim 1, wherein the discriminating unit has a transmissive sensor including a light emitter and a light receiver arranged above and below the recording medium. 3. The autochanger according to claim 1, wherein the discriminating unit includes a reflective sensor that detects light reflected on the recording medium. 4. The discriminating means discriminates the state of the recording medium when a plurality of detection holes for detecting the overlapped mounting of two sheets pass through the discriminating means during the closing operation of the loading / unloading means. The automatic changer according to claim 1. 5. The placement means is provided with a plurality of other detection holes, and the determination result of the plurality of detection holes including the detection holes for the two-sheet stacking attachment detection by the determination means is a predetermined combination. 2. The automatic changer according to claim 1, wherein the closing operation of the moving means is stopped and the opening operation is performed when the opening / closing means is opened.