JP2001266449A - Disk changer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the infeasibility of the efficient utilization of a space in the thickness direction of the device and the difficulty in the increase of the number of stockable sheets of disks within limited external forms and dimensions with the disk changer for selectively reproducing the disks of a stocker which stocks the disks by holding the disks in the peripheral parts of their central holes and coaxially laminating the disks. SOLUTION: The disk changer is so constituted that the centers of rotation of the disks during reproducing exist in the positions apart by the hole diameters of the central holes of the disks or more with respect to the coaxial line of the disks laminated within the stocker. A transporting means which transports the disks between the stock position and the reproducing position is disposed aside from a transporting section which transmits the disks between a disk insertion and removal port and the stock position of the stocker. The transporting means is so constituted that the transporting operation of the disks by the transporting and the holding operation of the disks are started by the movement of one member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc changer apparatus having a stocker for accommodating a plurality of discs in the apparatus and selectively reproducing the accommodated discs.

[0002]

2. Description of the Related Art A first conventional example of a changer device is disclosed in, for example, Japanese Patent Laid-Open No. 10-64160, and FIG.
14 and FIG. 14 are a side view and a plan view of the changer device, respectively. In the figure, a pair of transport rollers 10 for transporting a disc is provided near the inside of an insertion slot 101 formed on the front panel 104 for inserting and removing a disc.
2,103 are arranged. The six trays 105 to 110 on which the disks are placed are stacked to form a stocker, and a pair of guide shafts 112,
The guides 113 (FIG. 14) are movable in the direction of the arrow Z respectively.

Each of the trays 105 to 110 has grooves 105a to 110a (only 105a is shown in FIG. 14) for mounting discs 115 to 120 on its upper surface, respectively.
Further, cutout portions 105b to 110b which spread radially to secure a rotation area of the reproduction unit 131 described later.
(Only 105b is shown in FIG. 14). Further, the moving range of each of the trays 105 to 110 is divided into three, and as shown in FIG.
1, B2.

[0006] A pair of cam shafts 122 are rotatably supported between the upper and lower bases 111. At the lower ends of the pair of camshafts, a gear 124 for obtaining a driving force from a driving means (not shown) is provided, and a cylindrical cam body 125 (FIG. ) Is formed. On the outer peripheral surface of the cam body 22, the tray 10
Protrusions 105c to 110 formed on 5 to 110, respectively
A spiral guide groove 125a with which c is engaged is formed.

The guide groove 125a has an upper end 12
5b is continuous with the upper standby area B1 and the lower end 125c is continuous with the lower standby area B2. When any tray is at a predetermined reproduction position in the selection area A, each tray above or below that tray is Are set to move to the upper standby area B1 or the lower standby area B2, respectively.

The urging member 126 receives the force of the spring 128 and urges the tray in the upper standby area B1 downward.
When the camshaft 122 rotates in the direction of arrow N (FIG. 14),
The tray is engaged with the guide groove 125a of the cam body 125 so that it can move downward. On the other hand, the urging member 127 urges the tray in the lower standby area B2 upward by receiving the force of the spring 129, and the cam shaft 122 moves in the direction of the arrow M (FIG. 14).
When the tray rotates, the guide groove 12 of the cam body 125
5a so that it can move upward. Sensor 1
30 detects the arrival of the tray when it reaches the reproduction position in the selection area A.

The reproducing unit 131 is driven to rotate by a spindle motor 132 (FIG. 13) and rotates integrally with a mounted disk, and a pickup for scanning a disk track guided by guide shafts 131a and 131b. 134 and a support shaft 135
And is slidably held in the axial direction.

[0008] A clamper arm 136 extending from the reproduction unit 131 has a clamper 140 loosely held at the end thereof, and is held on a support shaft 135 so as to be relatively movable with respect to the reproduction unit 131. The elevating holder 137 has an arm 137b for the reproduction unit 131 and an arm 13
7a respectively hold the clamper arms 136, and the guide shaft 1
In addition to being held movably in the axial direction at 38, movement is controlled by meshing with the screw shaft 139.

In the above configuration, the loading operation of the disk will be described first. Drive motor (not shown)
The pair of cam shafts 122 are driven to rotate in phase, and a desired tray, for example, the fourth tray 108 from the top is
Is moved to the playback position within. The movement of the tray 108 to the reproduction position is detected by the sensor 130, and the drive motor is stopped based on this detection. At this time, the trays 107 and 109 above and below the selected tray 108 are not engaged with the guide grooves 125a, and the respective standby positions B1, B
Waiting at 2.

Then, the pair of transport rollers 102 and 103 at the retreat position R are moved to the operating position S by a moving means (not shown), and further rotated at this position. In this state, when the disc is inserted from the insertion slot 101, the pair of transport rollers 102 and 103 sandwich the disc and
After that, each roller is returned to the retracted position R again. When loading a disk into another tray, the above operation is repeated to load a disk into each tray. When the disc is ejected, the reverse operation is performed.

Next, the operation of reproducing a disc will be described. FIG. 14 shows a case where, for example, the tray 108 is at the reproduction position. When playing the disc placed on the tray, the playback unit 131 is rotated in the direction of arrow M about the support shaft 135 by a drive motor (not shown),
The clamper arm 136 and the clamper 140 enter the gap L1 shown in FIG. 13, the reproducing unit 131 enters the gap L2, and the turntable 133 and the disk 118 placed on the tray 108 become coaxial with each other. 14)
Only rotate and stop.

Next, by rotating the screw shaft 139 in a predetermined direction, the reproducing unit 131 is raised to place the disk 118 on the turntable 133, and at the same time, the clamper 140 is lowered to hold the disk 118. Further, the playback unit 131 moves up and the disk 11
8 is stopped with the tray 8 being separated from the tray 108. Thereafter, the spindle motor 132 rotates to rotate the disk 118 placed on the turntable 133, and the pickup 134 reproduces a signal from the disk.

On the other hand, the following stocker system has been proposed in order to enable a small-diameter disc to be stacked and held on a stocker. FIG. 15 is a main part configuration diagram of a changer device showing the second conventional example, which has a configuration in which the discs are stacked and held using a center hole of the disc. In the drawing, an upper cylinder 150 having a spiral groove 150a formed on the outer periphery and a lower cylinder 151 also formed with a spiral groove 151a formed on the outer periphery are rotatable about the axis and are movable in the axial direction. Base 152 so that it can be coupled / separated from each other
Is held in. Further, upper and lower cylinders 150 and 151
Are connected to each other, each spiral groove 150a and 1
The rotation phase is set so that 51a is continuous.

The spacers 155 to 160 have projections 155a to 159a on the inner peripheral surface for engaging with the spiral grooves 150a and 151a of the upper and lower cylinders 150 and 151, respectively.
It is arranged on the outer periphery of each cylinder in the engaged state. The disks 115 to 119 are sandwiched between these spacers in the vicinity of the center hole, and are stacked and held with the center hole penetrating the upper and lower cylinders 150 and 151.

The reproduction unit 160 is mounted with a turntable 162 and a pickup (not shown) which are rotated and driven by a spindle motor 161 and rotate integrally with a disc to be mounted thereon, and a clamper 165 for loosely holding a clamper 165. The arm 164 is held so as to be able to move in parallel with the reproducing unit 160.

The operation of the above configuration will be described. FIG.
As shown in FIG. 5A, in a state where the upper and lower cylinders 150 and 151 are connected, cylinder driving means (not shown)
When the upper and lower cylinders integrally rotate about the axis, the spacers 155 to 160 and the disc 115 sandwiched by
To 119 are guided by the spiral grooves 150a and 151a,
For example, the desired disk 117 is moved up and down to the reproduction position.

Here, the disk 117 is held by the holding means 166.
Is temporarily held, and in this state, the upper cylinder 150 is raised and the lower cylinder 151 is lowered, so that a gap L4 is formed between the upper and lower cylinders. At this time, the end of the separated cylinder projects at least by the thickness of the spacer with respect to the gap L3 between the disks formed by the separation. That is, in the upper cylinder 150, the standby disk 1
The lower cylinder 151 protrudes from the upper surface of the standby disk 118 by L6.

Next, the reproducing unit 160 and the clamper arm 164 enter the gap L4, the disk 117 is held between the turntable 162 and the clamper 165, and the holding means 166 is separated from the disk 117 to start the reproducing operation. In order to select another disc, the reverse operation is performed, and the playback unit 160 and the clamper arm 1 are selected.
64 is retracted, the upper and lower cylinders 150 and 151 are connected, and again by a cylinder driving means (not shown),
The disks 115 to 119 are moved up and down by rotating both cylinders.

[0019]

In the changer device according to the first conventional example, when priority is given to making the device thinner, only a groove corresponding to a standard-diameter disk can be formed in the tray. Had problems that could not be addressed. On the other hand, in the changer device of the second conventional example, since the disc is held by using the center hole of the disc, it is possible to mix the standard-diameter disc and the small-diameter disc. However, the gap between the discs for entering the reproducing unit is provided. L3 is equivalent to the thickness of the spacer (for example, L5, L5 in FIG. 15).
6), which is disadvantageous when the apparatus is to be made thinner or when it is desired to increase the number of disks to be stocked within the determined external dimensions.

Further, in the first conventional example, since the retreat position of the reproducing unit is set on the back side in the loading direction of the disc, there is a problem that the depth dimension of the changer device becomes large.

In the first conventional example, the reproducing unit has a large rotation angle θ1 and is configured to be supported only by a rotation support shaft. For this reason, it is difficult to maintain a stable posture of the playback unit at the playback position, and this is an unfavorable configuration particularly for an in-vehicle changer with severe use conditions.

It is an object of the present invention to provide a disk changer device which enables disks having different external dimensions to be mixedly used and which is excellent in space efficiency in the thickness direction of the device. It is another object of the present invention to provide a disk changer device which can be operated and arranged efficiently in consideration of the limited outer dimensions, enables stable operation, and minimizes the depth dimension of the device. Another object of the present invention is to provide a disc changer device capable of stably holding the attitude of the reproducing unit at the reproducing position.

[0023]

According to the present invention, there is provided a disc changer device in which a center of a center hole of a disc is laminated on a coaxial line and a plurality of stockers can be stocked, and a disc is mounted on a turntable and integrally formed. A first reproducing unit for selectively reproducing a stock disk having a reproducing unit for reproducing a signal by rotating the disk and transferring the disk between an opening formed in a front surface of the disk changer device and the stocker; A disk transport means, and the turn set outside the center movement path of the disk moved by the first disk transport means and set at a position parallel to the coaxial line and at least apart from the inner diameter of the center hole of the disk. The center of the center hole of the disc moves between a reproduction movement position on the reproduction rotation axis of the table and a stock position on the coaxial line. And a second conveying means for conveying the disk.

[0024] The reproduction rotation axis may be set on a reference line parallel to a line substantially perpendicular to the line connecting the beginning and end of the center movement path of the disk and the coaxial line. In addition, the playback unit moves between a playback position in which the rotation axis of the turntable is on the playback rotation axis and a retreat position that does not hinder movement of the disc stocked in the stocker in the coaxial direction. In this movement, the rotation axis of the turntable may move substantially parallel to the reference line.

Further, a disc changer device according to another invention comprises a stocker capable of stocking a plurality of discs,
The disc has a reproducing unit that reproduces a signal by mounting the disc on a turntable and integrally rotating the disc, and selectively reproduces the stock disc, and further, movably holds the disc in a predetermined direction with respect to a chassis. A transport unit that transports the disk with disk holding means for holding or releasing the disk, a transport operating unit disposed on the chassis and configured to displace the transport unit to move the transport unit, and the disk A mode switching member formed with a holding action portion for controlling a disc holding operation of the holding means, a first power transmission means acting on the transport action section to move the transport section, and an action acting on the holding action section; And a second power transmission means for driving the holding operation of the holding means.

The second power transmission means is displaceably held by the transport section, and has an engaging pin and a first displacement member having a transmission section for transmitting the displacement to a drive section constituting the disk holding means. A restricting pin which is held by the chassis so as to be displaceable in a predetermined direction and which engages with a cam groove formed in the holding action portion; And a second displacement member having an engagement portion that transmits the first displacement member to the first displacement member. Further, the first displacement member may be rotatably held by the transport unit. Further, the first displacement member may be configured to be movably held in a direction orthogonal to a moving direction of the transport unit. Also,
The second displacement member may be movably held in a direction orthogonal to a moving direction of the transport unit. Further, the second
May be constituted by a pair of rotating levers which are rotatably held by the transport unit and have connecting portions to which power is transmitted to each other.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 3
FIG. 2 is a plan view of a main part of the disc changer device according to the first embodiment of the present invention. FIGS. 4 and 5 are side views of the main part, and FIGS. 6 to 9 are front views of the main part viewed from the front panel side where the disc insertion / removal opening is formed. This disc changer device is configured on the assumption that it conforms to the 1DIN standard.
(Compact disc), the external dimensions are length (H) × width (W) = 50 mm × 180 mm.

In these figures, the chassis 1 (FIG. 1)
Has a bottom plate 1a and a top plate 1b (FIG. 4) formed integrally, and a front panel 2 (FIG. 4) is formed with a disk insertion / removal opening 2a which is an opening for taking a disk in and out. The first transport section 5 (FIG. 4), which is a first disk transport means, includes a disk guide 3 and a rotating roller 4 as shown in FIG. 4, and has a retracted position R (FIG. 4C) and an operating position S.
It is configured to be able to reciprocate between ((a) in the figure). The stocker 6 (FIG. 1) stores a plurality of disks in a stacked state, as described later.

The reproducing unit 7 (FIG. 1) is driven to rotate by a spindle motor 10 (FIG. 6), and the turntable 8 rotates integrally with the disc to be mounted, and the guide 7
a and an optical pickup 9 movably held along 7b. As shown in FIG. 6, the reproducing unit 7 is rotatable (arrow M) on a rotating support shaft 16 (FIG. 1) mounted on a sub-base 15 floatingly held on the bottom plate 1a via dampers 11 to 14. , N direction) and also in the axial direction (the direction of arrow Z in FIG. 6) so as to be slidable, so as not to overlap the disk held by the stocker as described later.
It is arranged to be retractable on the right side of the stocker 6 when viewed from the front panel 2 side.

Further, as shown in FIG. 8, the reproducing unit 7 is slidable in the direction of the rotation support shaft (in the direction of arrow Z) at a position where the clamper 17 which is loosely fitted and held at the tip end faces the turntable 8. The clamper arm 18 is held. The stopper 19 shown in FIG. 1 is configured to abut and position the inserted disc and move to a different position in the arrow Y direction according to the type of disc to be inserted (standard-diameter disc or small-diameter disc). ing.

Next, the configuration of the stocker 6 will be described with reference to FIG. In the figure, lower cylinder unit 2
6 is a lower inner cylinder 24 and a lower outer cylinder 2
5 is comprised. The lower inner cylinder 24 has a hollow cylindrical shape, and has a rotating support shaft 27 erected on the bottom plate 1a.
Is held so as to be rotatable about the axis 28 and slidable in the axial direction (the direction of arrow Z). Further, a spiral groove 24a is formed on the outer peripheral surface, and an engaging recess 24b is formed on the upper end surface. The lower outer cylinder 25 is externally inserted into the lower inner cylinder 24, moves in the axial direction (the direction of the arrow Z) together with the lower inner cylinder 24 in a state where rotation is prevented, and extends on the peripheral surface in the Z-axis direction. Are formed (see FIG. 6).

The upper cylinder unit 23 comprises an upper inner cylinder 21 and an upper outer cylinder 22. The upper inner cylinder 21 is driven to rotate about an axis 28 by a driving unit (not shown) arranged on the top plate 1b, and a spiral groove 21a is formed on the outer peripheral surface.
The lower end surface is formed with an engagement projection 21b that engages with the engagement recess 24b of the lower inner cylinder 24. The upper outer cylinder 22 is externally inserted into the upper inner cylinder 21 and fixed to the top plate 1b. A plurality of slits 22a (see FIG. 6) extending in the Z-axis direction are formed on the peripheral surface. still,
When the engaging concave portion 24b and the engaging convex portion 21b are engaged,
The groove 24a of the lower inner cylinder 24 and the groove 21a of the upper inner cylinder 21 are configured to be continuous, and the plurality of slits 25a of the lower outer cylinder 25 and the plurality of slits 22a of the upper outer cylinder 22 are respectively continuous. It is configured.

The seven spacers 30 to 36 have slits 22 of the upper and lower outer cylinders 22 and 25 on the inner peripheral surface thereof.
projections 30a to 3a engaging with the spiral grooves 21a, 24a of the upper and lower inner cylinders 21, 24 via the upper and lower inner cylinders 21, 25, respectively.
6a, the upper and lower cylinder units 2 in the engaged state.
3, 26 are held on the outer peripheral surface. Disks indicated by chain lines in the figure are placed with their center holes fitted in these spacers, stacked so as to be sandwiched between adjacent spacers, and stored in the stocker 6. The spacer 30
Are provided for holding the disks placed on the spacers 31. The number of these spacers is prepared one more than the number n of the disks.

Next, FIGS. 1 to 3 show the configuration of the disk transport means corresponding to the second disk transport means for moving the disk stored in the stocker to the reproduction moving position, and show the configuration of the disk transport means. This will be described with reference to FIG.

As shown in FIG. 11, the movable plate 45, which is a transporting portion for transporting the disk, has guide pins 45b, 45c, and 45d to be planted. Guided by 44, it is held by the top plate 1b so as to be movable in the arrow X direction. 1 to 3
The first holding arm 36, the second holding arm 37, and the third holding arm 38 shown in FIG. 4 have shaft holes 46c respectively engaged with three support shafts 39, 40, and 41 erected downward from the moving plate 45. , 47c, and 48c, which are rotatably supported. Further, these holding arms respectively have grooves 36a, 37a, 38 for holding the outer peripheral portion of the disk.
a and cooperate to hold the disc as described below.

A control plate 46 as a second displacement member
The guide elongated holes 46e and 46f formed are guided by guide pins 51 and 52 which are erected on the top plate 1b, respectively, and are movably supported in the arrow Y direction, that is, the direction orthogonal to the moving direction of the moving plate 45. As will be described later, a pair of engaging portions 46a and 46b are formed at both ends of the long hole 46d that allows the movement of the moving plate 45, and further holds a regulating pin 46c that is planted downward.

The gears 36b, 37b, and 38b are disposed on the first holding arm 36, the second holding arm 37, and the third holding arm 38, respectively.
Are arranged in mesh with each other. The transmission gear 47, which is the first displacement member, is rotatably supported by a support shaft 45e erected on the movable plate 45 by its shaft hole 47b.
Along with a gear that meshes with the ring gear 48 to transmit the driving force, an engaging pin 47 that is set up at a position away from the support shaft 46e
a. The engaging pin 47a passes through a guide groove 50 formed in the top plate 1b, and
engages with d. The guide groove 50 has a linear portion 50a formed in the direction of the arrow X that is the moving direction of the moving plate 45, and regulating portions 50b and 50c formed continuously at both ends and extending in the orthogonal arrow -Y direction. .

The ring gear 48 has three arc grooves 48a, 48b, 48c formed on the moving plate 45, and guide pins 45f, 45g,
The gear (45h) is rotatably held by the moving plate 45, and is geared to mesh with the gear 36b of the first holding arm 36 and the gear 38b of the third holding arm 38 in addition to the transmission gear 47 described above. (Not shown). No.
The first to third holding arms and the ring gear 48 correspond to a disk holding means, and further correspond to the ring gear 48 as a drive unit of the disk holding means.

The third holding arm 38 is formed so as to be able to expand and contract in the direction of the support shaft 41. When the first transport section 5 (FIG. 4) is at the operating position S, as shown in FIG. The disk is in a contracted state so as not to hinder the movement of the disk, and when the first transport unit 5 moves to the retreat position R as shown in FIG. Although controlled by moving means (not shown), a detailed description thereof is omitted.

The lever 60 is a perspective view of FIG.
As shown in (b), a substantially Y-shaped cam groove 60a having linear portions at both ends is formed so as to be rotatably supported by the side plate 1c of the chassis 1 around the pivot shaft pin 60c. An engaging pin 60b that engages with the engaging portion 45a of the 45 is erected. As shown in the perspective view of FIG. 12, the mode switching member 61 has guide pins 61c, 6
1d is guided by the guide groove of the side plate 1c of the chassis 1 and slidably supported in the arrow X direction, and the regulating pin 46c of the control plate 46 is engaged with the cam groove 61b formed in the upper bent portion.

Also, the mode switching member 61 has the configuration shown in FIG.
As shown in FIG. 2, an engaging pin 61a that engages with the cam groove 60a of the lever 60 is erected, and an elongated hole 61e is formed to avoid contact with the rotating pin 60c of the lever 60 when moving. The rotating lever 62 has a rotating shaft 62a formed at one end thereof rotatably supported by the bottom plate 1a of the chassis 1, and an engaging pin 62b planted at an intermediate portion of the rotating lever 62.
a pin 62 which is engaged with a cam groove 63a formed in a cam gear 63 rotatably supported by
c is engaged with an engagement hole 61f (FIG. 12) formed in the mode switching member 61. The drive motor 64 rotationally drives the cam gear 63 via a rotation transmission section 65 including a plurality of transmission gears. In addition, the engagement pin 61a of the mode switching member 61
Corresponds to the conveying operation portion, and the cam groove 61b corresponds to the holding operation portion. Further, the lever 60 corresponds to first power transmission means.

The operation of the entire disc changer device having the above configuration will be described. First, an operation of loading a disk on the uppermost stage of the stocker 6 will be described mainly with reference to FIGS. Now, the reproduction unit 7 is at the retreat position as shown in FIG. 1, and the stocker 6 is in the position shown in FIG.
As shown in FIG. 7, the upper cylinder unit 23 and the lower cylinder unit are separated from each other to form a gap L4. The spacer 30 engages with the upper cylinder unit 23 side, the spacers 31 to 36 engage with the lower cylinder unit 26 side,
Further, the first transport section 5 moves to the operation position S and is in a disk loading waiting state.

When the disk 115 is inserted, the disk 115 guided by the disk guide 3 is conveyed to the inside of the apparatus by the rotation of the rotating roller 4, and the stopper 1
9 (FIG. 1) and stops, resulting in the state of FIG. 4 (b). Next, after the third holding arm 38 extends downward, the first, second, and third holding arms 36, 37, and 38 are simultaneously rotated, and the corresponding outer peripheral portion of the disk is moved into the respective grooves 36a,
37a and 38a (FIG. 11).

The operation of the first, second and third holding arms 36, 37 and 38 will now be described with reference to FIG. By rotating the drive motor 64, the rotation transmitting unit 6
When the cam gear 63 is rotated in the direction of the arrow M via the rotary lever 5, the rotation lever 62 having the engaging pin 62b that engages with the cam groove 63a having the smaller diameter is also rotated in the direction of the arrow M, and the mode switching member. 61 is driven in the arrow X direction. Cam groove 61
control plate 46 having a restriction pin 46c engaging with the control plate 46b
Moves in the arrow Y direction according to the displacement of the cam groove 61b. At this time, the transmission gear 47 having the engaging pin 47a penetrating through the guide groove regulating portion 50b of the top plate 1b and located at the engaging portion 46a of the control plate 46 moves the control plate 46 in the arrow Y direction. Accordingly, it slightly rotates in the direction of arrow M. This rotation is transmitted to the first, second, and third holding arms via the ring gear 48, and moves the first and third holding arms 36, 38 in the direction of arrow M and the second holding arm 37. Are rotated in the directions of arrows N to hold the disk 115.

Thereafter, the first transport section 5 moves to the retreat position R, and enters the state shown in FIG. Further, the lower cylinder unit 26 is moved up by an elevating means (not shown) to be coupled to the upper cylinder unit 23 (FIG. 4D). Thereafter, the drive motor 64 is rotated in reverse, and the holding arms 36, 37, 38 Turning in the direction away from the outer periphery, FIG.
The state shown in FIG.

When a disc is to be loaded in the next stage, the upper inner cylinder 21 (FIG. 10) and the lower inner cylinder 24 engaged with the upper cylinder 21 are rotated in a predetermined direction by a cylinder drive motor (not shown). With this rotation, as shown in FIG. 10, the spacers 30 to 36 engaged with the grooves 21a or 24a sequentially move upward along the slits 22a or 24a across the upper and lower cylinder units 23 and 26, The spacer 32 is shown in FIG.
When a sensor (not shown) reaches the selected position shown in (1), this is detected and the cylinder drive motor stops.

Next, the lower cylinder unit 26 descends,
With the spacers 30 and 31 held by the upper cylinder unit 23 and the spacers 32 to 36 held by the lower cylinder unit 26, the gap L4 is formed again. Further, as shown in FIG. 5C, the third holding arm 38 contracts to enable insertion of the disk, and the first transport unit 5 moves to the operation position S to be in a disk loading waiting state. . Thereafter, the disc loading operation is performed in the same manner as the first disc described above, and the state in which six discs are loaded is shown in FIG.
Shown in The disc ejection operation is performed in the reverse process of the above-described loading operation, and a description thereof will be omitted.

Next, with reference to FIG.
This will be described with reference to FIGS. It is assumed that six disks 115 to 120 are loaded in the stocker 6 now. Here, for example, when the disk 117 is reproduced, the upper inner cylinder 21 and the lower inner cylinder 24 are rotated by a cylinder drive motor (not shown), and with this rotation, the spacers 30 to 36 together with the six disks 115 to 120 are rotated. Ascends and descends, and stops when the disk 117 reaches the selected position as shown in FIG.
Next, after the first, second, and third holding arms 36, 37, and 38 rotate to hold the outer periphery of the disk, the lower cylinder unit 26 descends, and as shown in FIG. To form a gap L4.

Here, the operation of the second transport unit will be described with reference to FIG.
This will be described with reference to FIG. The first, second, and third holding arms 36, 37, and 38 rotate to rotate the cam gear 63 in the direction of arrow M and move the mode switching member 61 in the direction of arrow X so as to hold the outer periphery of the disk. Let it. At this time, the engagement pin 61a of the mode switching member 61 moves from one end to the center of the linear portion of the Y-shaped cam groove 60a of the lever 60, but the state of the lever 60 itself does not change. When the cam gear 63 is further rotated in the direction of the arrow by the drive motor 64 from this state, the mode switching member 61 further moves in the direction of the arrow X.

With the movement of the mode switching member 61, the engaging pin 61a is engaged from one straight portion of the cam groove 60a of the lever 60 to the bent portion, and the lever 60 is rotated in the direction of arrow P. In response to this movement, the moving plate 45 moves the arrow X
To the playback movement position shown in FIGS. 3 and 8. At this time, the engaging pin 47a of the transmission gear 47 pivotally supported by the moving plate 45 is guided by the linear portion 50a of the guide groove 50 formed in the fixed top plate 1a. The state of the three holding arms 36, 37, 38 holding the disk 117 does not change.

Next, as shown in FIGS. 3 and 8, the reproducing unit 7 rotates in the direction of the arrow M about the rotation support shaft 16 by the rotation angle θ2, and the gap formed between the disks 116 and 118. Get into L3. At this time, as shown in FIG. 8, the clamper 17 and the clamper arm 18 enter between the disc 117 held and the disc 116 held on the upper side in the stocker, and the turntable 8, the pickup 9,
The reproducing unit 7 such as the spindle motor 10 enters between the disk 117 and the disk 118 located below the disk 117 and reaches a reproducing position where the disk 117 can be mounted on the turntable.

As shown in FIG. 3, the axis 28 of the upper and lower cylinders of the stocker and the reproducing position where the moving plate 45 has moved, and the turntable 8 of the reproducing unit.
Is the distance D of the reproduction rotation axis 29 when is moved to the reproduction position.
Are set at positions separated by at least the diameter of the disk center hole, and the upper and lower cylinder units 23 and 26
It is configured such that components such as a spindle motor of the reproducing unit do not abut when the reproducing unit is moved to the reproducing position.

In this state, the reproducing unit 7 is moved in the direction of arrow Z by driving means (not shown), and the disc 117 is placed on the turntable 8 as shown in FIG. 9 and the clamper arm 18 is moved in the direction of -Z. And clamper 17
Presses and fixes the disk 117 against the turntable 8.

Next, the cam gear 63 is driven by the drive motor 64.
Is further rotated in the direction of arrow M, the mode switching member 61 further moves in the direction of arrow X. At this time, the engagement pin 61a of the mode switching member 61 moves from the central bent portion of the Y-shaped cam groove 60a of the lever 60 to the other end of the straight portion, but the state of the lever 60 itself does not change. During this time, the moving plate 45 is maintained at the reproduction moving position.

On the other hand, the regulating pin 4 engaged with the cam groove 61b
Since the control plate 46 having the control plate 6c moves in the direction of the arrow -Y according to the displacement of the cam groove 61b, the control gear 46 moves along the linear portion 50a of the guide groove 50 of the top plate 1b and is located at the regulating portion 50c. Similarly, the engaging pin 47a slightly moves in the arrow -Y direction. At this time, the transmission gear 47 rotates in the direction of arrow N. This rotation is transmitted to the first, second, and third holding arms via the ring gear 48, and the first and third holding arms 36, 38 are moved in the direction of arrow N, and
Is rotated in the direction of arrow M to separate each holding arm from the disk 117.

Thereafter, the spindle motor 161 rotates, the disk 117 placed on the turntable 162 is driven to rotate, and the pickup 9 reads a signal.
Signal reproduction is started.

Next, an exchange operation for exchanging a disk to be reproduced will be described by taking as an example the case of exchanging disks 117 to 118. When the drive motor 64 is rotated in the reverse direction to rotate the cam gear 63 in the direction of the arrow N, the second transporting means operates completely in the opposite direction. That is, with the movement of the mode switching member 61 in the direction of the arrow -X, first, the three disk holding arms 36, 37, and 38 again hold the outer periphery of the disk 117. Here, the clamper 17 and the turntable 8
Move away from each other and away from the disk.

Next, when the cam gear 63 is further rotated in the direction of arrow N and the mode switching member 61 is moved in the same direction, the moving plate 45 is moved in the direction Move to the stock position while holding. In synchronization with this movement, the reproducing unit 7 rotates and returns to the retreat position again. Next, the lower cylinder unit 26
Rises and is combined with the upper cylinder unit 23,
Further, the mode switching member 61 is moved in the same direction to move the control plate 46 in the direction of the arrow -Y, and the three disk holding arms 36, 37, 38 are separated from the disk 117.

Next, the upper inner cylinder 21 and the lower inner cylinder 24 shown in FIG. 10 are rotationally driven by a cylinder driving motor (not shown) to raise the spacers 30 to 36, and the spacer 34 is moved to the selected position and stopped. I do. The subsequent operation, that is, the disc 1 on the spacer 34
The operation of lowering the lower cylinder unit 26 and moving the lower cylinder unit 26 to the reproduction position is exactly the same as that of the disk 117 described above, so that the description thereof is omitted.

According to the configuration of the first embodiment of the present invention, the movement of the moving plate 45 and the three disk holding arms 36, 3 can be performed by a single moving operation of the mode switching member 61.
Since the disk holding operation of 7, 38 is performed, the configuration is simple, and there is no deviation in the mutual timing.

The reproduction position to which the moving plate 45 has moved is
It is set at a position at least apart from the stock position before the movement by the diameter of the center hole of the disc, so that the upper and lower cylinder units 23 and 26 and at least the thickest part of the reproducing unit in the Z direction do not overlap in the arrow Z direction. Therefore, the gap L4 (FIG. 10) can be made smaller and the device can be made thinner.

Further, as shown in FIG. 3, the end of the disc at the set reproduction position can be prevented from protruding to the side of the apparatus from the retracted position of the reproduction unit 7, so that the disk is moved to the reproduction position. The invention does not increase the lateral dimension of the device. In addition, by transporting the disc to the playback movement position, the amount of rotation of the playback unit 7 can be reduced as compared with a configuration in which only the playback unit 7 rotates, and the time required for the playback operation can be reduced.

Further, the rotation angle θ2 (FIG. 3) according to the first embodiment can be suppressed smaller than the conventional rotation angle θ1 (FIG. 14) in which the reproducing unit rotates to the stock position. After the operation, the playback unit 7
3 (hatched area in FIG. 3) can be secured widely, and by providing a suitable sliding portion between them, the playback unit can maintain a stable posture after rotation.

Embodiment 2 FIG. 12 is a perspective view showing a configuration of the disk transport means according to the second embodiment of the present invention. The second embodiment is different from the first embodiment in that the control plate 46 held linearly by the top plate 1b and the transmission gear 47 held rotatably by the moving plate 45 are separate members. Therefore, only the portions different from the first embodiment will be mainly described.

The first rotation lever 71 is rotatably supported by a support shaft 73 erected on the top plate 1c, is erected downward, and engages with the cam groove 61b of the mode switching member 61. Pin 71
c. Further, the first rotating lever 71 has a connecting portion 71d connected to the second rotating lever 72 and an engaging recess 71a.
Are formed. The second rotation lever 72 is rotatably supported by a support shaft 74 erected on the top plate 1c, and has a connection portion 72d connected to the first rotation lever 71 and an engagement recess 72a.

The rack 75 has a long hole 75 which engages with a pair of guide pins 45i and 45j set on the moving plate 45.
b and 75c, and are slidably held by the moving plate 45. In addition, in this rack 75,
A pin 75a that penetrates the guide groove 50 formed in the top plate 1b and engages with the engaging recess 71a of the first rotating lever 71 or the engaging recess 72b of the second rotating lever 72 is planted. A gear meshing with the ring gear 48 is formed. In addition,
The first and second pivot levers correspond to a second displacement member, and the rack 75 corresponds to a first displacement member.

In the above configuration, the mode switching member 61
Moves in the direction of the arrow X, the first rotation lever rotates in the direction of the arrow N in response to the displacement of the cam groove 61b, and the engagement recess 7
The pin 75a engaging with the guide groove 1a is connected to the regulating portion 50b of the guide groove 50.
, The rack 75 also moves in the arrow Y direction. This movement is transmitted to the first, second, and third holding arms shown in FIG. 11 via the ring gear 48, and moves the first and third holding arms 36, 38 in the direction of arrow M, and The holding arms 37 are rotated in the directions of arrows N to hold the disc.

On the other hand, after the moving plate 45 moves in the direction of the arrow X and reaches the reproducing position, the pin 75a engages with the engaging concave portion 72a of the second rotating lever 72. And cam groove 6
The second pivoting lever 72, which pivots in the direction of the arrow N in conjunction with the pivoting of the first pivoting lever 71 in the direction of the arrow M in response to the displacement of the pin 1b, moves the pin 75a to the regulating portion of the guide groove 50. 50
It moves in the arrow -Y direction along c. This movement is transmitted to the first, second, and third holding arms shown in FIG. 11 through the ring gear 48, and the first and third holding arms 36,
38 is rotated in the direction of arrow N and the second holding arm 37 is rotated in the direction of arrow M, so that each holding arm is separated from the disk. The operations other than the operations described above are the same as those in the first embodiment, and thus the description thereof is omitted.

According to the configuration of the second embodiment of the present invention described above, the first displacement member is the rack 75 that moves linearly in the direction perpendicular to the moving direction of the moving plate, and the second displacement member is placed on the top plate. Since the first and second rotating levers are configured so as to rotate, the degree of freedom in mechanism design is increased.

In the above-described embodiment, the case where the disc is fixed by the clamper held by the clamper arm has been described. However, the present invention is not limited to this, and the disc is directly pressed into the turntable and held. Various aspects such as a mechanism may be provided.

In the claims and the description of the embodiments, “up”, “down”, “left”, “right”,
Although words such as “before” and “after” are used, they are for convenience and do not limit the absolute positional relationship in a state where the device is arranged.

[0072]

According to the disc changer device of the first aspect of the present invention, the coaxial line of the stocker and the reproduction rotation axis of the disc are set to be shifted from each other by a predetermined distance, and the second disc transport means for transferring the disc between them is provided. Since the disk changer is provided, it is possible to provide a disk changer device having excellent space efficiency in the thickness direction of the device. In addition, since the reproduction position can be arbitrarily arranged at a position other than the transport path of the first transport means,
Design flexibility is increased.

According to the disk changer device of the second aspect, since the reproduction position is set to the side of the stock position in the device, the depth of the device can be increased by providing the second disk transport means. Can be avoided.

Further, according to the disc changer device of the third aspect, the retracted position of the reproducing unit can be provided on the side of the stock position in the device, so that the depth of the device can be suppressed short. In addition, since the rotation angle of the reproducing unit can be suppressed to a small value, the posture after the rotation can be easily stabilized.

According to the disk changer device of the fourth aspect, the respective operations of the transport unit for transporting the disk and the disk holding means are started by the displacement of the mode switching member, so that the configuration can be simplified. At the same time, no operation failure due to the timing shift of each operation occurs.

Further, according to the disk changer device of the fifth to ninth aspects, the configuration of the second power transmission means is as follows:
The configuration can be set to be mainly composed of rotation or parallel movement, and the degree of freedom in mechanism design can be increased.

[Brief description of the drawings]

FIG. 1 is a plan view of a disc changer device according to a first embodiment of the present invention.

FIG. 2 is a plan view of the disc changer device according to the first embodiment of the present invention, showing a state where the disc is held by a holding arm.

FIG. 3 is a plan view of the disc changer device according to the first embodiment of the present invention, showing a state where the disc has moved to a reproduction position.

FIG. 4 is a side view of a main part of the disc changer device according to the first embodiment of the present invention, wherein FIGS.
(C) and (d) show the operation until one disc fits in the stocker.

FIGS. 5A and 5B are side views of main parts of the disc changer device according to the first embodiment of the present invention; FIGS.
(C) and (d) show operations until a plurality of disks fit in the stocker.

FIG. 6 is a main part front view of the disc changer device according to the first embodiment of the present invention, showing a state where the disc is held by a holding arm;

FIG. 7 is a front view of a main part of the disc changer device according to the first embodiment of the present invention, showing a state where the disc is held by the holding arm and the lower cylinder unit is lowered.

FIG. 8 is a front view of a main part of the disc changer device according to the first embodiment of the present invention, in which the disc is held by the holding arm and moved to the playback position, and the playback unit was also rotated and moved to the playback position. Indicates the status.

FIG. 9 is a front view of a main part of the disc changer device according to the first embodiment of the present invention, showing a state where the disc is rotated by a reproducing unit.

FIG. 10 is a configuration diagram illustrating a configuration of a stocker.

FIG. 11 is an exploded perspective view of a main part showing a configuration of a second transport unit.

FIG. 12 is a perspective view illustrating a configuration of a second transport unit according to a second embodiment of the present invention.

FIG. 13 is a side view showing a configuration of a conventional changer device.

FIG. 14 is a plan view showing a configuration of a conventional changer device.

FIG. 15 is a main part configuration diagram of a disk changer device showing another conventional example.

[Explanation of symbols]

1 chassis, 1a bottom plate, 1b top plate, 1c
Side plate, 2 front panel, 2a disk insertion / removal slot, 3 disk guide, 4 rotating roller, 5 first transport section, 6 stocker, 7 playback unit, 7
a guide, 7b guide, 8 turntable,
9 Pickup, 10 Spindle motor, 1
1, 12, 13, 14 damper, 15 sub-base,
16 rotation support shaft, 17 clamper, 18 clamper arm, 19 stopper, 21 upper inner cylinder, 21a groove, 21b engaging projection, 22 upper outer cylinder, 22a slit, 23 upper cylinder unit, 24 lower inner cylinder, 24a
Groove, 24b engaging recess, 25 lower outer cylinder, 25a slit, 26 lower cylinder unit, 27 rotation support shaft, 28 axis, 30, 31,
32, 33, 34, 35 spacer, 36 first holding arm, 36a groove, 36b gear, 37 second holding arm, 37a groove, 37b gear, 38 third
Holding arm, 38a groove, 38b gear, 39
Support shaft, 40 support shaft, 41 support shaft, 45 moving plate, 45a engaging portion, 45b guide pin, 45c
Guide pin, 46 control plate, 46a engaging portion, 46b engaging portion, 46c regulating pin, 46d
Slot, 47 transmission gear, 47a engagement pin, 4
8 ring gear, 50 guide groove, 50a linear part,
50b regulating part, 50c regulating part, 60 lever,
60a cam groove, 60b engaging pin, 60c rotating shaft pin, 61 mode switching member, 61a engaging pin, 61b cam groove, 61c guide pin, 61d guide pin, 61e long hole, 61f engaging hole, 62
Rotating lever, 62a Rotating shaft, 62b engaging pin, 62c pin, 63 cam gear, 63a cam groove, 64 drive motor, 65 rotation transmitting section, 71
A first rotating lever, 71a engaging concave portion, 71c engaging pin, 71d connecting portion, 72 second rotating lever,
72a engaging concave portion, 71d connecting portion, 73 support shaft,
74 spindles, 75 racks, 75a pins.

Claims (9)

[Claims] 1. A stocker in which a center hole of a disk is held and a center thereof is stacked on a coaxial line, and a plurality of stockers can be stocked, and a disk is mounted on a turntable and rotated integrally to reproduce a signal. A disc changer device having a reproducing unit and selectively reproducing a stock disc, wherein the first disc transports the disc between an opening formed in a front surface of the disc changer device and the stocker. Transport means; and the turntable set outside the center movement path of the disk moved by the first disk transport means and parallel to the coaxial line and at least separated from the inner diameter of the center hole of the disk. The center of the center hole of the disc moves between the reproduction movement position on the reproduction rotation axis and the stock position on the coaxial line. Disc changer apparatus; and a second disk transfer means for transferring the disk. 2. The reproduction rotation axis line on a reference line parallel to a line substantially perpendicular to a line connecting a start end and an end of a center moving path of the disk moved by the first disk transport means and a line substantially perpendicular to the coaxial line. 2. The disc changer device according to claim 1, wherein 3. The reproducing unit according to claim 1, wherein a rotation position of the turntable is on the reproduction rotation axis, and a retreat position that does not hinder the movement of the disc stocked in the stocker in the coaxial direction. 3. The disk changer device according to claim 2, wherein the rotation axis of the turntable moves substantially parallel to the reference line during the movement. 4. A stocker capable of stocking a plurality of discs, and a reproducing unit for reproducing a signal by mounting the discs on a turntable and rotating the discs together to selectively reproduce the stocked discs A disc changer device, comprising: a conveyance section that is movably held in a predetermined direction with respect to a chassis, and includes a disc holding unit that holds or releases the disc, and that conveys the disc; and A mode switching member formed with a transfer action section that controls the movement of the transfer section by displacement, and a holding action section that controls the disk holding operation of the disk holding means; and Moving part 1
A disk changer device comprising: a power transfer unit having a power transmission unit; and a second power transmission unit that is acted on by the holding operation unit and drives the holding operation of the holding unit. 5. The first displacement member, wherein the second power transmission means is displaceably held by the transport section, and has an engagement pin and a transmission section for transmitting the displacement to a drive section constituting the disk holding means. A regulating pin which is held by the chassis so as to be displaceable in a predetermined direction and which engages with a cam groove formed in the holding action portion; The disc changer device according to claim 4, further comprising: a second displacement member having an engagement portion that transmits the first displacement member to the first displacement member. 6. The disc changer device according to claim 5, wherein the first displacement member is rotatably held by the transport unit. 7. The disc changer device according to claim 5, wherein the first displacement member is movably held in a direction orthogonal to a moving direction of the transport unit. 8. The disc changer device according to claim 5, wherein said second displacement member is movably held in a direction orthogonal to a moving direction of said transport section. 9. The apparatus according to claim 1, wherein the second displacement member is constituted by a pair of rotation levers which are rotatably held by the transport unit and have connecting portions to which power is transmitted to each other. 6. The disc changer device according to 5.