JP2003091911A - Disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce costs of a disk device by reducing the number of motors and solenoids. SOLUTION: When a junction gear 181 is rotated in the ccw direction, a movable member 20 and a lock member 90 are transferred in the Y2 direction since a friction gear 192 is transferred in the αdirection, to be abutted on a first stopper 193, a second gear 173 is locked and a first gear 172 is rotated in the continuous line direction. While the junction gear 181 is rotated in the cw direction, the movable member 20 and the lock member 90 are transferred in the Y1 direction since the friction gear 192 is transferred in the β direction, to be abutted to a second stopper 194, the second gear 173 is locked and the first gear 172 is rotated in the dashed line direction. When the first gear 172 is locked, rotation of the second gear 173 is allowed and a disk transporting means 14 is driven via a fourth motivity transmitting means 240.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk device such as a CD and a DVD, and more particularly to a disk device for selectively switching power generated by a motor to drive a plurality of mechanisms.

[0002]

2. Description of the Related Art FIG. 14 is a conceptual diagram showing the function of a power transmission mechanism in a conventional disk device.

A conventional disk device is housed in a casing that serves as an outer frame (not shown). On the front of the case, there is a CD
An entrance (not shown) for inserting and ejecting a disc such as a DVD or a DVD is provided. An elevating chassis A is provided inside the housing facing the entrance and exit, and is movable in the height direction. Further, in the housing, a disk carrying means D for carrying the disk between the entrance and exit and the lifting chassis A, a disk holding means C for holding the disk inside the lifting chassis A, and a disk held by the disk holding means. A disc ejecting unit B for pushing the disc to the disc conveying unit D is provided. In addition, a pair of opening / closing link mechanisms 70 that can move in a direction intersecting the disc insertion and ejection directions are provided.

Inside the housing, there are a first motor 1, a second motor 1, a second motor 1 for driving the elevating chassis A, a disc ejecting means B, a disc holding means C and a disc carrying means D. A planetary gear mechanism 3 for transmitting the power to the lifting chassis A, the disk ejecting means B and the disk holding means C, and an electromagnetic solenoid S for switching the power are provided. That is, the conventional disk device is composed of two motors and one solenoid.

In the above disk device, the output of the first motor 1 is switched by the planetary gear mechanism 3 and the electromagnetic solenoid S to drive the elevating chassis A, the disk ejecting member B, the disk holding means C, etc. The second motor drives the disk carrying means D.

[0006]

However, in the above-mentioned conventional disk device, a plurality of members are driven by two motors and one solenoid. However, if the number of motors or solenoids can be further reduced, The price of the entire disk device can be reduced.

The present invention is intended to solve the above-mentioned conventional problems, and an object of the present invention is to provide a disk device in which the cost is reduced by reducing the number of motors by one.

[0008]

According to the present invention, there is provided an entrance / exit for inserting and ejecting a disc, a first disc holding means for holding a newly inserted second disc, and a first disc to be ejected. Second disc holding means for holding the disc, an elevating chassis having the first and second disc holding means, a movable member for moving up and down the elevating chassis, and a second disc holding means at the time of ejection. A disc ejecting means for pushing out the retained disc in the direction of the entrance / exit, a disc conveying means for conveying the disc between the inlet / outlet and the elevating chassis, and a lock member for locking the first disc holding means, In a disk device having, a motor, a sun gear that rotates by obtaining power of the motor, and a sun gear that rotates coaxially with the sun gear. A first gear and a second gear,
Further, when the first gear is locked, the second gear is rotated, and when the second gear is locked, the first gear is rotated, a planetary gear mechanism, the first gear and the second gear. Power selection means for selectively locking the gear,
First and second power transmission means for outputting first and second powers from the first gear, and third and fourth powers for outputting third and fourth powers from the second gear Transmission means, the movable member is driven by the first power, the locking member is driven by the second power, the disc ejecting member is driven by the third power, and the disc transporting means is provided. Is driven by the fourth power.

In the above structure, four powers can be obtained only by controlling one motor, and various powers can drive various mechanisms. Therefore, the number of motors and solenoids can be reduced to the limit. The manufacturing cost of the disk device can be reduced.

For example, when the power selection means is pivotally supported on the tip of a rotating arm rotatably provided on the planetary gear mechanism and meshes with the second gear, the rotation of the second gear is reduced. And a first stopper and a second stopper provided within the movement path of the friction gear. When the second gear rotates, the friction gear moves to move the first gear and the second stopper. The second gear is locked by coming into contact with the first stopper or the second stopper.

Further, the second stopper is provided when the friction gear is separated from the second stopper.
The second stopper moves up and down together with the lifting chassis, and when the friction gear meshes with the second stopper, only the lifting chassis moves up and down and is elastically supported by the lifting chassis so that the engagement is maintained. It can consist of things.

Further, the second power transmission means is a transmission gear that meshes with the second gear and rotates, and meshes with the lock member provided on the lifting chassis when the position in the lifting direction matches. is there.

Further, the third power transmission means is the first power transmission means.
Is a transmission gear that rotates by meshing with the gear of FIG. 3 and meshes when the position of the disc discharging member provided on the lifting chassis matches in the lifting direction.

Further, the fourth power transmission means has an upper gear and a lower gear, and the lower gear meshes with the second gear to move with the lifting chassis and the first two-stage gear, and the upper gear. A second two-stage gear having a lower gear and transmitting power to the disc transfer means, and a reversing gear that meshes with an upper gear of the second two-stage gear to rotate, and the lifting chassis is at an upper position. When the upper chassis of the first two-stage gear and the reversing gear mesh with each other when the upper and lower chassis move to the intermediate position and the lower position, the lower gear of the first two-stage gear and the second gear The lower gear of the two-stage gear is engaged.

In the above, the movable member is provided with a cam groove for guiding a support pin provided on the lifting chassis and the clamp member, and the support pin can be moved in one direction in the cam groove. Therefore, it is preferable that the elevating chassis and the clamp member for clamping the disc be moved up and down. In this case, it is preferable that the cam groove is provided with a path switching member that guides the support pin in one direction.

Further, the path switching member is provided with a restricting portion for restricting movement of the support pin in a direction opposite to the one direction, and when the support pin presses the restricting portion in the opposite direction, It is preferable that the first gear is locked and the power of the motor is output from the second gear.

[0017]

1 is a plan view showing a disk device of the present invention, FIG. 2 is a side view showing a movable member for vertically moving an elevating chassis, and FIG. 3 is a plan view of a disk device showing a disk holding means. is there.

4 to 12 show the power transmission mechanism for each part, FIG. 4 is a plan view showing the relationship between the planetary gear mechanism and other mechanisms in the present invention, and FIG. 5 shows the power selecting means. FIG. 6 is a side view showing the first power transmission means, FIG. 7 is a side view showing the second power transmission means, and FIG. 8 is a plan view showing the disc ejection means. 9
10 is a plan view showing the returning mechanism of the disc ejecting means, FIG. 10 is a side view showing the third power transmitting means, FIG. 11 is a plan view showing the returning mechanism of the locking member, and FIG. 12 shows the operation of the power selecting means. , A is the upper position, B is the intermediate position, and C is the lower position.

In the disk device according to the present invention, when a new second disk is inserted from the entrance while the first disk is present inside the disk device, the disk is exchanged in the disk device and the first disk is replaced. This is a so-called quick change type disc device that ejects one disc from the entrance. Further, it is a so-called 1-motor no-solenoid type disk device in which each operation is switched by only one motor.

As shown in FIG. 1, this disk device is incorporated in a housing 11. Front of the case 11 (Y1 side)
Is provided with a nose portion, and the nose portion has a slit-shaped inlet / outlet opening 13 opening in the width (X1-X2) direction.
Are formed. A transport roller (disc transport means) 14 is rotatably supported near the entrance / exit 13. The driven pulley 14 is attached to one end of the transport roller 14.
a is fixed, and when a driving force is applied through the driven pulley 14a by means to be described later, it becomes possible to rotate the disc in the normal direction for drawing the disc into the device and in the reverse direction for ejecting the disc to the outside. There is. In addition,
A guide member 63 that faces the transport roller 14 is provided on the lower surface of an elevating chassis 60, which will be described later, so that the disc D can be sandwiched between the transport roller 14 and the guide member 63.

An elevating chassis 60 is provided in the housing 11. Supporting pins 60a, 60 extending outward (X1 and X2) are provided on both side surfaces of the lifting chassis 60.
b, 60c and 60d are provided, and the housing 1
Long grooves (not shown) formed on the side surfaces 11A and 11B of
Respectively, and is projected to the outside of the housing 11.

A clamp arm 130A constituting a clamp member 130 is provided on the elevating chassis 60. Support pins 131, 131 extending outward are also formed on both side surfaces of the clamp arm 130A so as to project. The support pins 131, 131 are inserted into long grooves (not shown) formed on the side surfaces 11A, 11B of the housing 11, respectively. Protruding to the outside. A clamper 132 is rotatably supported at the center of the clamp arm 130A and faces an opening (not shown) formed at the center of the elevating chassis 60. And the clamp arm 130A
When is lowered, the clamper 132 enters the inside of the elevating chassis 60 through the opening, and the disc mounted on the turntable T described later can be clamped.

On the side surfaces 11A and 11B of the casing 11,
Movable member (elevating mechanism) 2 that moves in the Y1-Y2 direction in the figure
0 and 30 are provided. The connecting portion 28 and the connecting portion 38 are provided on the Y1 side of the movable members 20 and 30 in the figure.
Are provided respectively, and the connecting portion 28 and the connecting portion 38 are connected via a link arm (not shown) rotatably provided on the bottom surface 11C of the housing 11. Then, when the movable member 20 is moved in the Y direction by means described later, the link arm rotates in the clockwise direction and the counterclockwise direction, and the movable member 30 becomes the opposite direction to the movable member 20. It is possible to move in the direction.

As shown in FIG. 2, on the side surface of the movable member 20, there are formed cams 21 for vertically moving the clamp arm 130A and cams 22, 23 for vertically moving the lifting chassis 60. The cam 21 has an upper cam groove 21a and a lower cam groove 21c which are formed in parallel with each other, and the inclined groove 21 is provided on both sides on the Y1 and Y2 sides.
They are connected by d and 21e to form one closed circuit. An initial setting portion 21f (reference numeral portion) is provided at the end on the Y2 side in the figure.
Are formed.

On the other hand, the cam 22 has an upper cam groove 22a and a lower cam groove 22c which are formed in parallel with each other, and an intermediate cam groove 22 corresponding to the middle in the height direction on the Y2 side in the drawing.
b. The intermediate cam groove 22b and the upper cam groove 22a are formed by the inclined groove 22d, and the upper cam groove 22a and the lower cam groove 22c are formed by the inclined groove 22e.
2c and the intermediate cam groove 22b are connected to each other by the inclined groove 22f to form one closed path. Further, the cam 23 has the same shape as the cam 22, and the upper cam groove 23
a, intermediate cam groove 23b, lower cam groove 23c, inclined groove 23
It has d, 23e, and 23f. It should be noted that the other movable member 3 is also formed with cams that perform similar functions (not shown).

Inside the cams 21, 22, 23, path switching members 24, 25, 26 having switching pieces 24b, 25b, 26b are rotatably supported by shafts 24a, 25a, 26a, respectively. . The shafts 24a, 2
5a and 26a are provided with urging members SP1, SP2 and SP3, respectively, which are always urged in the clockwise direction in the drawing, and the tip ends of the switching pieces 24b, 25b and 26b are
The bottom surfaces of the lower cam grooves 21c and the intermediate cam grooves 22b and 23b are pressed, respectively. Further, on the path switching members 24, 25, 26, the restriction portions 24c, 25c, 26c projecting into the upper cam grooves 21a, 22a, 23a are provided.
Are provided respectively.

Inside the cam 21, one support pin 131 of the clamp arm 130A is inserted. Further, inside the cams 22 and 23, the lifting chassis 6 is installed.
The support pins 60a and 60b provided on one surface of No. 0 are respectively inserted. The clamp arm 130A
The support pins 131 on the other surface of the
Similarly, the support pins 60c and 60d formed on the other surface are also inserted into the cams formed on the movable member 30 (not shown).

When the movable member 20 is moved in the Y2 direction in the drawing from the clamp position (initial mode), the support pin 131 of the clamp member 130 is first inclined along the switching piece 24b of the path switching member 24. Groove 21
Because the climb arm d reaches the position of reference numeral, the clamp arm 130A can be set to the non-clamp position (see FIG. 13A). At this time, the support pins 60a and 60b of the elevating chassis 60 are not moved in the vertical direction, but are moved to the positions indicated by the symbols in the intermediate cam grooves 22b and 23b.
Therefore, the height position of the lifting chassis 60 is maintained at the intermediate position.

When the movable member 20 is further moved in the Y2 direction in the drawing to reach the position indicated by the reference numeral, the support pin 131 of the clamp arm 130A maintains the same height position and the unclamped state is maintained. Then, since the support pins 60a and 60b climb the inclined grooves 22d and 23d along the switching pieces 25b and 26b of the path switching members 25 and 26 to reach the positions indicated by the symbols, the lifting chassis 60 can be set to the upper position. (See Figure 13B).

When the movable member 20 is further driven in the Y2 direction in the figure, the support pins 60a and 60b move down the inclined surfaces 22e and 23e to reach the positions indicated by the symbols, so that the lifting chassis 60 is set to the lower position. be able to. Further, at this time, the support pin 131 descends the inclined groove 21e and reaches the position of the sign with a slight delay, so that the clamp arm 130A can be set to the clamp position which is the original height position (see FIG. 13F).

Next, when the movable member 20 is driven in the Y1 direction in the drawing, the support pin 131 moves in the lower cam groove 21c and is returned to the initial setting part 21f of the reference numeral. On the other hand, the support pins 60a and 60b are attached to the lower cam grooves 22c and 2c.
Move 3c. Further, it is moved up to the reference numeral or the reference numeral of the intermediate cam grooves 22b and 23b by climbing up the inclined grooves 22f and 23f. At this time, the support pin 131 causes the switching piece 24b of the path switching member 24 to move to the support pin 60.
a and 60b lift the switching pieces 25b and 26b of the path switching members 25 and 26, respectively, and these switching pieces 2
It passes under 4b, 25b, and 26b, and moves to a code.

In this way, the movable member 20 is set to Y2 and Y2.
By moving in one direction, the support pins 131, 60
By moving a and 60b in the cams 21, 22, and 23 in one direction, the clamp arm 131A and the lifting chassis 60 can be moved up and down in the height (Z) direction.

As shown in FIG. 1, one movable member 20 has a bent piece 20A formed by bending a part of the movable member 20 in the X1 direction in the drawing.
Is provided, and a rack 20a is formed at the edge thereof. The bent piece 20A is a side surface 1 of the housing 11.
It is inserted into the housing 11 through a long groove (not shown) formed in 1A so as to extend in the Y direction.

A first transmission gear 211 that meshes with the rack 20a is provided in the vicinity of the bent piece 20A, and meshes with a first gear 172 of the planetary gear mechanism 170 described later (see FIG. 4). ). And the first gear 17
When 2 is rotated and the movable member 20 (folding piece 20A) is moved in the Y1 and Y2 directions in the figure via the first transmission gear 211, the bending piece 20A moves in the long groove. That is, by the rack 20a of the bent piece 20A and the first transmission gear 211, the first power transmission means 21
0 is configured.

On the bottom surface 11C of the housing 11, a turntable T and a driving device such as a spindle motor for rotating the turntable T and the disk are moved in the radial direction to record information on the disk surface and the disk. A disk drive unit 50 including a recording / reproducing head for reproducing information written in the disk is provided (FIG. 1).
3). Therefore, in this disc device, the disc drive unit does not move in the height (Z) direction of the disc device.

As shown in FIG. 1, a pair of guide grooves 60p and 60q extending parallel to the X direction in the drawing are formed on the X1 side of the elevating chassis 60, and a pair of guide grooves extending parallel to the X2 direction in the drawing. 60r and 60s are formed. The lifting chassis 60 includes a pair of plate-shaped moving members 7
1, 72 are provided slidably in the X direction in the figure. Shaft-shaped pins 71a and 72a extending downward in the drawing are fixed to the ends of the moving members 71 and 72, and the guide groove 60 is provided.
p, 60r. Rack portions 71b and 72b are formed in the opposing portions of the two moving members 71 and 72, and the guide grooves 60p and 60q and the guide grooves 60r and 6 are formed.
It meshes with a gear wheel 73 rotatably provided in the middle of 0 s. That is, the rack portions 71b, 72b
The gear gear 73 and the gear gear 73 constitute the opening / closing link mechanism 70, and the rack portion 71b and the rack portion 72b can move relative to each other. An urging member (not shown) is provided between the moving member 72 and the lifting chassis 60, and the moving member 72 is always urged in the X2 direction in the drawing. Therefore, the moving member 71 connected via the gear wheel 73 is also urged in the X1 direction in the figure.

Pins 71a, 7 of the moving members 71, 72
2a is inserted through the guide grooves 60p and 60r, and disk guide members 81 and 82 are rotatably supported at the tips thereof. The disc guide members 81, 82 are shown in Y2 in the drawing.
Guide pins 81a, 82 extending upward in the drawing are provided at end portions in the direction.
a is provided, and the guide groove 6 of the lifting chassis 60 is provided.
It is inserted through 0q and 60s. Disc guide grooves 81b and 82b forming one of the first disc holding means 80 are circumferentially provided on the side portions of the disc guide members 81 and 82.

When the moving members 71 and 72 are moved in a direction toward each other and a direction away from each other, the disk guide members 81 and 82 are also moved together. At this time, the guide pins 81a and 82a can move in the guide grooves 60q and 60s.

The moving member 72 is moved in the X2 direction in the drawing by the urging force of the urging member provided in the moving member 72, and the moving member 71 is moved in the X1 direction in the drawing. Therefore, the disc guide member 81 of the moving member 71
The disk guide member 82 of the moving member 72 is moved in the direction of approaching each other. At this time, the pin 71 of the disc guide members 81 and 82 is
Since the front side (Y1 side) of the a and 72a hits the convex portions 61 and 61 formed on the lower surface of the elevating chassis 60, the disc guide member 81 is rotated clockwise in the drawing, and the disc guide member 82 is rotated. Is set to be rotated counterclockwise in the drawing. That is, as shown in FIG. 1, the disc guide member 81 and the disc guide member 82 are set in a state in which the tip ends on the Y1 side in the drawing are opened outward in a V-shape. Therefore, in this state, when the disc D is inserted from the doorway 13,
The edge portion of the disc D can be inserted between the disc guide grooves 81b and 82b of the disc guide members 81 and 82.

The elevating chassis 60 is provided with positioning members (positioning means) 120, 120. Gear wheels are formed on the outer periphery of the circular base of the positioning member 120. The positioning member 120 extends from the base portion in the outer peripheral direction and is bent into a crank shape.
a. The tip of the arm 120a is inserted into a fan-shaped opening formed in the lifting chassis 60 and extends to the lower surface side of the lifting chassis 60. The arm 120a
Positioning pins 120b extending downward in the drawing are respectively provided at the tips of the. Positioning pins 120b, 12
Flange (the other first disk holding means) 120c, 120c is formed at the lower end of 0b so that the edge of the inserted disk can be held.

The disc guide member 81,
The disc guide grooves 81b and 82b of 82 and the flanges 120c and 120c of the positioning members 120 and 120 constitute a first disc holding means.

The gear gears provided around the bases of the positioning members 120, 120 can rotate by being meshed with each other, and the arm parts 120a, 120a can be relatively moved in a direction in which they approach each other and a direction in which they move away from each other. Rotate. In the vicinity of the positioning members 120, 120, the rack portion 2 that meshes with the gear wheel of the one positioning member 120.
A sliding member 200 having 01 is provided. A biasing member 20 is provided between the sliding member 200 and the lifting chassis 60.
2 is installed, and the sliding member 200 is always biased in the X1 direction in the figure. Therefore, the positioning members 120, 1
The arm 20 is biased in a direction in which the arms 120a and 120a can be brought closer to each other.

Protrusions 120d and 120d protruding upward in the drawing are formed on the surfaces of the bases of the positioning members 120 and 120, both of which are inserted into cutout holes 94 formed in a lock member 90 described later.

As shown in FIG. 1, the lifting chassis 60 is provided with a lock member 90 that slides in the Y direction in the drawing. The lock member 90 has a substantially well shape, and has lock portions 90a and 90b formed by cutting out a part thereof at both ends in the front (Y1 direction) in the drawing. The lock portions 90a and 90b face the guide pins 81a and 82a that pass through the guide grooves 60q and 60s and project upward in the drawing. Also, behind the lock member 90 (Y2 direction)
A lever 91 is provided at the end of the, one of which (X2 side)
A rack 92 is formed at the edge of the. The rack 9
2 meshes with a second transmission gear 221 described later (see FIG. 4). Further, a long hole 97 extending in the Y direction in the drawing is formed in the lever 91, and a guide convex portion 60h formed on the elevating chassis 60 is inserted into the long hole 97.

The lock member 90 includes a reverse urging member RS.
1 is provided (see FIG. 4). The reverse urging member R
S1 is the lock member 9 as shown by the solid line in FIG.
When 0 moves in the Y2 direction in the drawing, the lock member 90 is biased in the Y2 direction in the drawing, and when the lock member 90 moves in the Y1 direction and the reverse biasing member RS1 is reversed, the lock member 90 is locked as shown by the broken line in FIG. It operates so as to urge the member 90 in the Y1 direction in the figure. The reversal biasing member RS1 is
The lock member 90 is prevented from rattling.

The lever 91 of the lock member 90
It is preferable that the engaging portion 95 as shown in FIG. 11 is formed and the bending portion 20A of the movable member 20 facing the engaging portion 95 is provided with the pressing portion 20c.

In the above structure, when the lock member 90 is moved in the Y2 direction and is biased in the Y2 direction in the drawing by the reversing biasing member RS1, the movable member 20 is moved in the Y2 direction.
When the pressing portion 20c moves in one direction, the pressing portion 20c
The lever 91 can be returned in the Y1 direction by pressing. Further, at this time, the reversing biasing member RS1 is reversed to apply a biasing force in the Y1 direction, whereby the locking member 90
It is possible to prevent backlash.

As shown in FIGS. 1 and 3, a second disk holding means 140 is provided on the lower surface of the lifting chassis 60. The second disc holding means 140 is composed of rotating arms 141, 142 and disc holding members 151, 152 provided at the tips thereof.

Both the second disk holding means 140 and the first disk holding means 80 are provided in the elevating chassis 60, but the second disk holding means 140 is a lower portion of the first disk holding means 80. There is a relationship located in.

The rotating arms 141 and 142 are supported so as to be rotatable about rotating shafts 141b and 142b provided at the base ends thereof. Disk holding members 151, 152
Are swingably supported by the tips of the rotating arms 141, 142. Disc holding grooves 151 are formed on both side surfaces of the disc holding members 151 and 152, which face each other.
a and 152a are respectively formed on the rotary arm 1
When 41 and 142 are rotated in the direction of approaching each other, the edge of the disk can be held between the disk holding grooves 151a and 152a, and the turning arms 141 and 1 can be held.
The discs can be released when the discs 42 are rotated in directions away from each other.

On the base side of the rotating arms 141 and 142,
Movable pins 141a and 142a extending upward are provided, and a substantially fan-shaped hole 60 formed in the lifting chassis 60.
e, 60f.

The lifting chassis 60 includes a movable member 2
A drive member (not shown) that is moved in the X direction in the drawing in accordance with the movement of 0 is provided, and the movable pins 141a, 1
The tips of 42a are inserted into the through holes formed in the drive member. For example, when the movable member 20 is moved in the Y1 direction in the drawing, the driving member is moved to the X1 direction in the drawing.
The movable pin 141a,
142a is pressed to rotate the rotating arms 141, 142 in the opening direction. When the movable member 20 is moved in the Y2 direction in the figure, the driving member is moved in the X2 direction. At this time, the movable pin 1 is moved.
41a and 142a are pressed to move the rotating arm 14
1, 142 can be rotated in the closing direction.

In the inner part of the housing 11 of the disk device on the Y2 side in FIG. 1, the carrying roller 14, the movable member 20, the lock member 90, the positioning member 120 constituting the first disk holding means, and the second member. A power transmission mechanism 300 for driving the disc holding means 140 and the like is provided.

Of these, the power transmission mechanism 300 shown in FIG.
Shows mainly a motor M as a power generation means and a planetary gear mechanism 170 for transmitting the power of the motor M to each mechanism.

The planetary gear mechanism 170 includes a sun gear 171a, a first gear 172, and a second gear 1 which are located at the center.
73 and three planetary gears 174, 174, 174.

The sun gear 171a is formed at the tip of a central shaft 171 extending in the axial direction. The central axis 17
An input gear 171b is also formed on the rear end portion of the first gear 1, and a relay gear 181 is meshed with the input gear 171b. The relay gear 181 meshes with a screw gear Mb fixed to the rotation shaft Ma of the motor M.

The first gear 172 has the central shaft 17
It is supported so that it can rotate independently around 1.
The first gear 172 includes an internal gear 172a and an external gear 1
72b, and the sun gear 171a and the internal gear 172a face each other.

The second gear 173 is provided above the sun gear 171a and the first gear 172. The second
The lower surface of the gear 172 is provided with three shafts, and the planetary gears 174 are rotatably supported by these shafts, respectively.

The planetary gears 174 are the internal gears 172a of the sun gear 171a and the first gear 172.
Are arranged so as to mesh with both. Therefore,
The planetary gear 174 can rotate on its own axis, and can revolve around the sun gear 171a together with the second gear 173.

Power selection means 190 is provided in the planetary gear mechanism 170 and its vicinity. The power selection means 190 includes a rotary arm 191, a friction gear 19
2, first stopper 193 and second stopper 194
It consists of and.

The rotating arm 191 is rotatably supported by the central shaft 171 of the planetary gear mechanism 170.
The friction gear 192 is pivotally supported at the tip of the rotary arm 191 so as to mesh with the second gear 173. Therefore, when the second gear 173 rotates clockwise as shown by the solid line in the drawing, the rotary arm 191 and the friction gear 192 move in the α (clockwise) direction as shown in the drawing, and the second gear 173 rotates counterclockwise as shown by the broken line in the drawing. In doing so, the rotating arm 192 and the friction gear 192 move in the β (counterclockwise) direction shown.

As shown in FIG. 4 and FIG.
The second stoppers 193 and 194 are friction gears 19
2 is provided within the moving locus of rotation. The friction gear 192 moves in the α direction to move the first stopper 193.
Contact with the second gear 173, the movement of the friction gear 192 in the α direction and its rotation are stopped.
Is set to the locked state.

The second stopper 194 is provided on the elevating chassis 60 and can be moved up and down together with the elevating chassis 60 in the Z direction in the figure. Figure 5
2, the second stopper 194 is provided with two guide shafts 194a and 194b which are vertically provided downward (Z2 direction in the drawing) from the lower surface of the lifting chassis 60, and the guide shaft 1
It is composed of a stopper member 194c which is guided by 94a and 194b and moves in the Z direction, and an elastic member 194d such as a coil spring which supports the stopper member 194c in an elastically suspended state from the lifting chassis 60. When the elastic member 194d is in a compressed state, the stopper member 194c moves in the Z1 direction and contacts the lower surface of the lifting chassis 60 (see FIGS. 12A to 12C). Housing 1 facing the guide shafts 194a and 194b
An insertion hole 11D is formed in the bottom surface 11C of No. 1 and the guide shafts 194a and 194b are inserted into the insertion hole 11D when the lifting chassis 60 descends to the lower position in the Z2 direction (see FIG. 12C).

When the friction gear 192 moves in the β direction and comes into contact with the stopper member 194c of the second stopper 194 with the elevating chassis 60 in the lower position, the friction gear 192 moves in the β direction and Since the rotation is stopped, the second gear 173 is set in the locked state. When the lifting chassis 60 is moved upward from this locked state, the elastic member 194d is set to the extended state shown in FIG.

In the vicinity of the second stopper 194, there is provided a third stopper for restricting the movement of the rotary arm 191 in the β direction.
Stopper (not shown) is provided. The second stopper 194 of the third stopper is the lifting chassis 60.
When the friction gear 192 moves in the β direction in the upper position of the upper side (Z1 direction), it passes through the lower part of the second stopper 194 and further restricts the rotation arm 191 from moving in the β direction. Is. The third stopper is the rotating arm 1.
Only the movement of the 91 in the β direction is restricted, and the rotation of the friction gear 192 is allowed. Therefore, the second gear 173 is in a rotatable state.

6 and 7 show the second power transmission means 220 and the third power transmission means 23 of the power transmission mechanism 300.
0 is shown.

The second power transmission means 220 includes the second transmission gear 221 meshing with the first gear 172 and the lever 91 of the lock member 90 provided on the lifting chassis 60.
It consists of and. The second transmission gear 221 is elastically supported by a biasing member 222 such as a coil spring near the planetary gear mechanism 170. As shown in FIG. 6, when the lifting chassis 60 moves to the lower position, the rack 92 of the lever 91 meshes with the second transmission gear 221, and does not mesh with the other upper and intermediate positions. It

The third power transmission means 230 shown in FIG.
Third gear meshing with second gear 173 of planetary gear mechanism 170
The transmission gear 231 and the disc ejecting means 160 shown in FIGS. 8 and 9.

The third transmission gear 231 is rotatably supported by the rotary shaft 233 provided on the lower surface of the support member 232 fixed to the bottom surface 11C of the housing 11, and the second transmission gear 231 has the second gear of the planetary gear mechanism 170. It is meshed with the gear 173.
A biasing member 234 is attached around the rotation shaft 233, and the third transmission gear 231 is biased toward the tip of the rotation shaft 233. Then, as shown in FIG. 7, when the lifting chassis 60 provided with the disc ejecting member 160 is moved to the upper position, the disc ejecting means 1
It is set so as to mesh with the rack portion 162 of 60 and not mesh with other intermediate positions and lower positions.

As shown in FIG. 8, a disc discharge member 160 is provided near the planetary gear mechanism 170 and on the lower surface of the lifting chassis 60. The disc ejection member 16
0 is a base portion 16 having a rack portion 162 and a pressed portion 163.
1 and a discharge arm 164 extending from the base 161. The base 161 of the disc ejecting member 160 is rotatably supported by a rotary shaft 160a extending downward from the lower surface of the elevating chassis 60, and the ejecting arm 164 is rotatable in the clockwise and counterclockwise directions in the drawing. Has been done. The operation state of the disc ejecting member 160 is as shown by the broken line in FIG.
Is in the non-discharging state when it is rotating in the clockwise direction in the drawing, and is in the discharging state when it is rotating in the counterclockwise direction in the drawing as indicated by the solid line.

The base portion 161 of the disc discharging member 160.
A reversing biasing member RS2 is provided in the. The reversing urging member RS2 urges the ejection arm 164 in the clockwise direction shown in the drawing, which is the retracting direction, when the ejection arm 164 is in the non-ejection state, and pushes the disc to the outside when it is in the ejection state. The ejection arm 164 is urged in the clockwise direction to operate so as to maintain the respective states.

A return mechanism 25 as shown in FIG. 9 is provided near the base 161 of the disc discharge member 160.
It is preferable to set 0.

The returning mechanism 250 is composed of a substantially V-shaped reversing arm 251, and is supported so as to be rotatable by a shaft 252 provided at one end of the reversing arm 251. A pressing portion 253 is provided at the other end of the reversing arm 251.
And the pressing portion 253 is formed on the disc ejecting member 1
It is possible to contact the pressed portion 163 formed on the base portion 161 of 60.

A rack 20a and a step portion 20b are formed on the bent piece 20A of the movable member 20. The step portion 20b faces the contacted portion 254 corresponding to the V-shaped mountain portion of the reversing arm 251.

In the return mechanism 250, the movable member 2
When the bent piece 20A of 0 is moved in the Y2 direction in the figure, the step portion 20b presses the contacted portion 254 of the reversing arm 251 in the Y2 direction in the figure, and subsequently the edge portion 27c continuous with the step portion 20b causes the step portion 20b to move. The reversing arm 251 can be rotated clockwise in the drawing. Therefore, since the pressing portion 253 of the reversing arm 251 presses the pressed portion 163 of the disc discharging member 160, the discharging arm 164 can be returned to the non-discharging position in the clockwise direction in the drawing.

FIG. 10 shows a fourth part of the power transmission mechanism 300.
The power transmission means 240 of FIG. The fourth power transmission means 240 includes a fourth transmission gear (first two-stage gear) 2
41, a reversing gear 242 and a connecting gear (second two-stage gear) 243. The fourth transmission gear (first two-stage gear) 241 is rotatably supported by a rotary shaft 241 a fixed to the upper surface of the lifting chassis 60. The fourth transmission gear 241 is a two-stage gear including a lower gear 241A and an upper gear 241B having a smaller diameter than the lower gear 241A.

The reversing gear 242 is the bottom surface 11 of the housing 11.
It is rotatably supported by a rotary shaft 242b provided on the lower surface of a support member 242a fixed to C. The connecting gear (second two-stage gear) 243 is rotatably supported by a rotary shaft 243a fixed to the bottom surface 11C of the housing 11.

The connecting gear 243 is composed of a two-step gear in which a lower gear 243A and an upper gear 243B having a diameter smaller than that of the lower gear 243A are integrally formed, and a driving pulley 243C is provided at a lower end portion of the upper gear 243B. There is. In addition,
The output of the driving pulley 243C of the connecting gear 243 is
It is output to the driven pulley 14a of the conveying roller 14 via the belt 245.

In the fourth power transmission means 240 shown in FIG. 10, when the lifting chassis 60 is at the intermediate position, the second power transmission means 240
Gear 173 and the lower gear 243A of the coupling gear 243 are coupled via the lower gear 241A of the fourth transmission gear 241, and when the lifting chassis 60 is in the upper position, the second gear 173 and the upper portion of the coupling gear 243 are connected. The gear 243B is connected via the reversing gear 242 and the upper gear 241B of the fourth transmission gear 241. Therefore, the connecting gear 243 is rotated in the same direction as the second gear 173 when the elevating chassis 60 is in the intermediate position, and is rotated in the opposite direction to the second gear 173 when it is in the upper position.

A control unit is provided in the disk device to control a series of operations of the disk device.

The operation of the disk device will be described below. 13A and 13B are schematic diagrams showing an outline of the operation of the disk device of the present invention, where A is a diagram showing an initial mode in which the lifting chassis is in the intermediate position, and B is a new unclamping state in which the clamp member is in the unclamped state. Shows a state in which the disc is inserted, C is a state in which a new second disc is completely inserted, D is a state in which the lifting chassis is moved upward, and E is a lower first side. FIG. 6F is a diagram showing a state where the disc is ejected, and F is a diagram showing a state where the lifting chassis is moved to the lower position and the disc is clamped.

(Initial Mode) Here, the state in which the first disc D1 is loaded in the disc device is the initial mode. Even when the first disk D1 is not loaded in the disk device, the operating mode of the disk device is set to the initial mode immediately after the disk device is powered on. Therefore, the following operation of the disk device is the same even when the first disk D1 is not loaded.

In the initial mode, the movable member 20 is moved in the Y1 direction as shown in FIG. 2, and the support pins 60a and 60b of the lifting chassis 60 are moved to the Y2 side in the cams 22 and 23 of the movable member 20. Are located at the respective signs.

In this state, the elevating chassis 60 is set at the intermediate position in the height direction, and the first disc holding means 80 on the upper side is set at the insertion / ejection position. At the same time, the second disc holding means on the lower side (disc holding member 15
1, 152) are located at positions (disk drive positions) where the first disk D1 can be held on the turntable T provided in the disk drive unit 50 (see FIG. 13A).

Support pin 1 of clamp arm 130A
Reference numerals 31 and 131 are located at the reference sign on the Y2 side in the cam 21 of the movable member 20, and the clamp member 130 is set to the lower clamp position. Therefore, the first disk D1 is sandwiched between the turntable T and the clamp member 130.

Further, as shown in FIGS. 4 and 11, the rack 92 of the lever 91 of the lock member 90 has the reverse urging member R.
It is in a state of being moved in the Y1 direction in the figure by the urging force of S1. Therefore, as shown in FIG. 1, the lock portions 90a and 90b of the lock member 90 are replaced by the disk guide members 81 and 8
The second guide pins 81a and 82a are separated from each other, and the disc guide members 81 and 82 are set to the unlocked state. The moving member 71 is moved in the X1 direction in the figure by the urging member (not shown), and the moving member 72 is moved in the X2 direction in the corresponding direction.
1, 82 are set to be close to each other and the tip ends thereof are open in a V shape.

Further, in the initial mode, the driving member (not shown) is moved by the movable member 20 in the X1 direction in the figure, and the rotating arm 14 is moved as shown by the chain line in FIG.
1, 142 are rotated in a direction to open each other. Therefore, the disc holding members 151 and 152 provided at the tips of the rotating arms 141 and 152 are moved outward, and the first disc D1 is moved between the disc holding member 151 and the disc holding member 152. It is in a non-holding state.

Further, as shown in FIGS. 6 and 7, since the lifting chassis 60 is at the intermediate position, the second transmission gear 2
21, the lever 91, the third transmission gear 231, and the rack portion 162 of the disc ejecting member 160 are not in mesh with each other. The discharge arm 164 is set to the non-discharge position.

Further, as shown in FIG. 10, the lower gear 241A of the fourth transmission gear (first two-stage gear) 241 is connected to the lower gear 243A of the connecting gear (second second-stage gear) 243 and the second gear 243A of the second gear. Both gears 173 are in mesh with each other.

The friction gear 192 is set at a position where it does not engage with either the first stopper 193 or the second stopper 194 (see FIG. 4).

In the initial mode, the turntable T is rotated and the recording / reproducing head is driven, so that the reproducing and / or recording operation of the first disk D1 can be performed. .

(Insertion Operation of New Disc) As shown in FIG. 1, when a second disc D2 is newly inserted into the inlet / outlet port 13, the tip of the second disc D2 and the guide member 63 and It enters into the space between the transport rollers 14. The entrance / exit 13 is provided with a disk detecting means (not shown) including an optical sensor or other switch means.

When the control section in the disc device detects that the second disc D2 has been inserted into the entrance / exit 13 from the disc detection means, it drives the motor M to drive the relay gear 1
81 is indicated by a solid line in FIG. 4 in the ccw direction (counterclockwise direction)
Rotate to. The power of the motor M is the relay gear 181.
The sun gear 171a, the three planetary gears 174, the second gear 173, and the friction gear 192 are transmitted in this order.
Therefore, the friction gear 192 moves in the α (clockwise) direction in the drawing and contacts the first stopper 193, so that the second gear 173 is set to the locked state (see FIG. 12B).

When the second gear 173 is locked,
As shown in FIG. 4, since the first gear 172 rotates in the direction of the arrow indicated by the solid line, the bending piece 20A can be moved in the Y2 direction in the figure via the second transmission gear 221 (first power). ). Therefore, the movable member 20 moves in the Y2 direction in the figure,
The movable member 30 is moved in the Y1 direction. At this time, as shown in FIG. 2, the support pin 131 of the clamp arm 130A is moved to the inclined groove 21d in the cam 21 of the movable member 20.
And moves from the reference numeral to the reference numeral, and the clamp member 130 is set to the unclamped state in the upper part of the drawing (Z1 direction). Then, as shown in FIG. 13B, a space for inserting the disc D2 is formed between the clamper 132 and the turntable T. The support pin 131
When moving in the upper cam groove 21a, the path switching member 24 is rotated counterclockwise in the drawing in order to press the restriction portion 24c of the switching piece 24a of the path switching member 24. Then, when the support pin 131 passes through the regulation portion 24c, the path switching member 24 returns to the original state and the regulation portion 24c is positioned in the upper cam groove 21a. Therefore, when trying to move the movable member 20 in the Y1 direction in the drawing, the support pin 131 comes into contact with the restricting portion 24c.
The movement of the movable member 20 in the Y1 direction in the figure can be prohibited.

At this time, the support pins 60a and 60b of the elevating chassis 60 are also moved in the cams 22 and 23 from the reference numeral to the reference numeral, but the elevation position of the elevating chassis 60 is maintained at the intermediate position. There is.

At this time, the drive member (not shown) is moved in the X2 direction. Therefore, the rotating arms 141 and 142 are rotated in the closing direction, and the disc holding members 151 and 152 (the second disc holding means 14).
0) holds the edge of the first disc D1 from both sides.

Next, the control section drives the motor M in the reverse direction,
The relay gear 181 is rotated in the cw direction (clockwise direction) indicated by the broken line in the drawing (see FIG. 4).

At this time, the power selection means 190 uses the second
The friction gear 192 that meshes with the gear 173 is moved in the β direction. However, the friction gear 192
Since the second stopper 194 and the second stopper 194 have different positions in the height direction, they do not mesh with each other, and the friction gear 192 is not locked. Therefore, the second gear 173 is also set to the rotatable state in the unlocked state.

At this time, since the first gear 172 tries to rotate in the cw direction indicated by the broken line in the figure, the moving member 20 receives the power to move in the Y1 direction in the figure. The first gear 172 cannot rotate because it abuts against 24c and prohibits the movement of the movable member 20. That is, the second gear 173 can be brought into a locked state.

Further, as shown in FIG. 10, the lifting chassis 6
When 0 is in the intermediate position, the fourth power transmission means 24
At 0, the lower gear 241A of the fourth transmission gear 241 is the lower gear 243A of the coupling gear 243 and the lower gear 241A of the second gear.
It is engaged with both 73. Therefore, the second gear 17
Since only No. 3 rotates in the direction of the broken line in FIG. 4, the transport roller 14 is rotated in the forward direction in which the disc is pulled in through the main driving pulley 243C, the belt 245 and the driven pulley 14a (fourth power). Therefore, the second disc D2 sandwiched between the guide member 63 and the transport roller 14 can be drawn into the disc device.

As shown in FIG. 1, the second disk D
When the disc 2 is pulled in, the edge portion of the tip of the disc D2 has the disc guide groove 81 of the disc guide members 81 and 82.
b, 82b. Then, when the second disc D2 is further conveyed, the disc guide members 81 and 82 are pushed and opened in a direction away from each other along the shape of the edge portion of the disc D2. However, since an urging force in a direction of approaching each other is exerted between the moving member 71 and the moving member 72, even if the disk guide members 81 and 82 are moved in a direction in which they are pushed open to each other, the disk D2 does not move. It never falls.

Then, when the maximum diameter of the second disk D2 passes the imaginary line L-L connecting the pins 71a and 72a of the moving members 71 and 72, the second disk D2
One of the disc guide members 81 is rotated in the counterclockwise direction and the other disc guide member 82 is rotated in the clockwise direction. That is, the disc guide members 81 and 82 are switched to the inverted C-shape. Moreover, the disc guide members 81 and 82 press the edge portion of the second disc D2 from the rear in the Y2 direction in the figure by the biasing force acting between the moving member 71 and the moving member 72 in the direction toward each other. Is possible. Therefore, even when the rotation of the transport roller is stopped when the maximum diameter of the second disc D2 passes the imaginary line LL, the disc D2 can be transported in the depth direction of the apparatus. .

The second disk D2 contacts the positioning pins 120b, 120b of the positioning members 120, 120. At this time, the positioning members 120, 120 are further rotated outward by the pushing force of the disc D2. On the other hand, the disk guide members 81 and 82 are the second
When the maximum diameter of the disc D2 passes through the imaginary line L-L connecting the pins 71a and 72a of the moving members 71 and 72, the discs move in the directions of the inverted V shape toward each other, and the disc guide member. When 81 and 82 come into contact with the convex portion on the lower surface of the lifting chassis 60, the disc guide member 81 is rotated clockwise in the drawing, and the disc guide member 8 is rotated.
2 is rotated counterclockwise in the drawing.

At this time, as shown in FIG. 3, Y of the disc guide grooves 81b and 82b of the disc guide members 81 and 82 is set.
The tip in one direction holds the edge of the disc D2. Therefore, in the disc D2, the edge portion on the Y1 side in the drawing is the end portion of the disc guide grooves 81b, 82b, and the edge portion on the Y2 side in the drawing is the flange portions 120c, 12 of the positioning members 120, 120.
0c (see FIG. 13C).

(First Disk Ejecting Operation) The control section
When the retraction of the second disk D2 is completed, the motor M
Is driven to rotate the relay gear 181 in the ccw direction indicated by the solid line in the figure. As a result, the friction gear 192 moves around the second gear 173 in the α direction and comes into contact with the first stopper A, so that the second gear 173 is set to the locked state. The control unit further rotates the relay gear 181 in the ccw direction to move the movable member 20 (the bending piece 20).
Move A) in the Y2 direction. At this time, the support pins 60a and 60b of the lifting chassis 60 are moved by the intermediate cams 22b and 2b.
Since it can be moved from the position of the reference numeral 3b to the inclined grooves 22d and 23d to the position of the upper cam grooves 22a and 22a, the lifting chassis 60 can be set to the upper position.

In this upper position, the disc ejecting member 16
The rack portion 162 of 0 meshes with the third transmission gear 231 of the third power transmission means 230 (see FIG. 7). Further, in this upper position, the height positions of the lower second disk holding means 140 and the disk ejecting member 160 held by the first disk D1 are set to the insertion / ejection position. (See FIG. 13D) As for the control unit, the lifting chassis 60 is
When detecting the movement to the upper position, the motor M is rotated in the reverse direction and the relay gear 181 is rotated in the cw direction. As a result, the friction gear 192 is moved in the β direction, but since the second stopper 194 is moved to the upper position together with the lifting chassis 60 as shown in FIG. 12A, the friction gear 192 is moved to the stopper member 194c.
The rotary arm 191 is locked by a third stopper (not shown), and the second gear 173 is set to be rotatable.

On the other hand, in the movable member 20, the support pin 60
Since a and 60b are locked to the restricting portions 25c and 26c at the positions indicated by the reference numerals, their movement in the Y1 direction in the figure is prohibited. That is, the first gear 172 is set in the locked state in which the clockwise rotation indicated by the broken line in the figure is prohibited.

Therefore, since the second gear 173 is allowed to rotate in the counterclockwise direction in FIG. 4, the base portion 161 of the disc discharging member 160 meshing with the second gear 173 at the upper position as shown in FIG. Since the power (the third power) can be transmitted to the rotary arm 164, the rotary arm 164 can be rotated to the discharge position via the third transmission gear 231.

At this time, the tip of the discharge arm 164 is moved to the second
In order to push out the first disc D1 held by the disc holding means 140 in the direction of the entrance / exit 13, the first disc D1 moves in the Y1 direction and enters between the conveying roller 14 and the guide member 63.

At the same time, the conveying roller 14 is rotated via the second gear 173, the fourth transmission gear 241, the reversing gear 242, the connecting gear 243, and the belt 245 (fourth power). The first disc D1 sandwiched between the guide member 63 and the guide member 63.
Can be discharged (see FIGS. 4 and 10).

(Loading Operation of New Disc) When the first disc D1 is ejected, the control unit determines that the relay gear 181 is c.
The motor M is rotated so that it is rotated in the cw direction. As a result, the friction gear 192 moves in the α direction and comes into contact with the first stopper 193, and the second gear 17
Set 3 to locked state. Therefore, the first gear 172
Is rotated, the movable member 20 is further moved in the Y2 direction in the drawing, and the support pins 60a and 60b of the lifting chassis 60 are moved.
However, since it moves down the inclined grooves 22e, 23 from the positions of the reference numerals of the upper cam grooves 22a, 23a to the positions of the reference numerals in the lower cam grooves 22c, 23c, respectively, the elevating chassis 60 can be set to the lower position. it can. Therefore,
The first disk holding means 80 on the upper side is moved to the disk drive position, and the second disk D2 held by the first disk holding means 80 is moved to the disk drive unit 5
It is placed on the 0 turntable T. After a slight delay, the support pin 131 of the clamp arm 130A is
From the position of the reference sign of the upper cam groove 21, the inclined groove 21e is lowered and moved to the reference sign in the lower cam groove 21c, and the clamped state is set. As a result, the new second disc D2 is clamped between the clamper 132 and the turntable T (see FIG. 13F).

When the movable member 20 moves in the Y2 direction, the return mechanism 250 operates to rotate the ejection arm 164 clockwise in the drawing, so that the disc ejection member 160 is returned to the ejection position.

Then, as shown in FIG. 6, when the elevating chassis 60 moves to the lower position, the rack 92 formed on the lever 91 of the lock member 90 causes the second transmission gear of the second power transmission means 220 to move. 221 meshes.

(Operation of Returning to Initial Mode) When the movement of the lifting chassis 60 to the lower position is completed, the control section switches the rotation direction of the motor M and sets the relay gear 181 to c.
Rotate in the w direction (see FIG. 4). As a result, the friction gear 192 that is in contact with the first stopper 193 is
Is moved counterclockwise in the β direction. At this time, since the lifting chassis 60 is in the lower position, the friction gear 192 abuts on the stopper member 194c of the second stopper 194 which constitutes the power selecting means 190, and the second
The gear 173 is set to the locked state (see FIG. 12C). Therefore, the first gear 172 is rotated in the clockwise direction in FIG. 4, so that the lock member 90 having the lever 91 is moved in the Y2 direction in the figure via the second transmission gear 221 (second power transmission). ).

At this time, the lock portion 90 of the lock member 90
a and 90b lock the guide pins 81a and 82a of the disc guide members 81 and 82, and guide pin 81a.
The distance between the guide pin 82a and the guide pin 82a in the width (X) direction is slightly widened. Therefore, the facing distance between the disc guide grooves 81b and 82b of the disc guide members 81 and 82 is widened, and the holding of the second disc D2 is released.

At the same time, the cutout hole 94 of the lock member 90 is
Protrusions 120d and 120d of the positioning members 120 and 120
Is pressed in the Y1 direction in FIG. Therefore, the positioning member 1
Since the arms 120 a and 120 a are rotated in a direction in which the arms 120 a and 120 a open each other, the positioning member 12
The holding of the second disk D2 held by the flanges 120c and 120c of 0 and 120 is released. That is, the first disc holding means 80 is set in the non-holding state, and the second disc D2 is completely clamped by the turntable T and the clamper 132.

The controller further drives the motor M to rotate the relay gear 181 in the cw direction (see FIG. 4). Here, since the first gear 172 is in the unlocked state, the driving force of the motor M is transmitted to the bending piece 20A, and the movable member 20 is moved.
Is moved in the Y1 direction indicated by the broken line in the figure (first power).

By the movement at this time, the driving member (not shown) is moved in the X1 direction, so that the rotating arms 141, 142 are rotated in the opening direction.
At this time, the disc holding members 151 and 152 (second disc holding means 140) are retracted outward, and the second disc D2 on the turntable T is set in a non-holding state in which it cannot be held. It

Further, by moving the movable member 20 in the Y1 direction in the figure, the support pins 6 of the lift chassis 60 are moved.
0a, 60b are moved from the reference numerals in the lower cam grooves 22c, 23c to the positions indicated by the reference numerals of the intermediate cam grooves 22b, 23b. Therefore, the lifting chassis 60 is moved from the lower position to the intermediate position. Therefore, the first on the upper side
The disk holding means 80 is moved to the insertion / ejection position, and the second lower disk holding means 140 is moved to the disk drive position (see FIG. 13A).

When the elevating chassis 60 moves from the lower position to the intermediate position, the friction gear 192
Is in contact with the stopper member 194c of the second stopper portion 194, so that the stopper portion and the stopper member 194c are set to be engaged with each other when the elastic member 194d is extended (see FIG. 5). ).

When the elevating chassis 60 returns to the intermediate position, the control section further rotates the relay gear 181 in the cw direction to move the movable member 20 in the Y1 direction in the figure so that the supporting pins 60a and 60b of the elevating chassis 60 are moved to the intermediate position. Cam groove 22
It moves from the code in b and 23b to the position of the code (see FIG. 2). At this time, as shown in FIG. 11, the lever 91 is returned to the original position by the movable member 20.

Finally, the control unit drives the motor M slightly in the reverse direction (the relay gear 181 is in the ccw direction in FIG. 4),
The friction gear 192 is slightly moved clockwise. As a result, the engagement between the friction gear 192 and the stopper member 194c of the second stopper is released,
The state of the disk device is returned to the initial mode.

[0123]

As described above, according to the present invention, since the conventional two-motor / one-solenoid structure can provide the disk device similar to the conventional disk device even if one motor and one solenoid are reduced, the disk device can be provided. The cost of the device can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing a disk device of the present invention,

FIG. 2 is a side view showing a movable member that moves the lifting chassis up and down.

FIG. 3 is a plan view of a disk device showing disk holding means,

FIG. 4 is a plan view showing the relationship between the planetary gear mechanism and other mechanisms according to the present invention,

5 is a cross-sectional view taken along line VV of FIG. 4 showing a power selecting means,

FIG. 6 is a side view showing the first power transmission means,

FIG. 7 is a side view showing second power transmission means,

FIG. 8 is a plan view showing a disc ejecting means,

FIG. 9 is a plan view showing a returning mechanism of the disc ejecting means,

FIG. 10 is a side view showing a third power transmission means,

FIG. 11 is a plan view showing a return mechanism of the lock member,

FIG. 12 shows the operation of the power selecting means, where A is an upper position, B is an intermediate position, C is a lower position,

13A and 13B are schematic diagrams showing the outline of the operation of the disk device of the present invention, where A is a diagram showing an initial mode in which the lifting chassis is in the intermediate position, and B is the clamp member in the unclamped state, and a new second Figure showing the state where the disc is inserted,
C is a diagram showing a state in which a new second disc is completely inserted, D is a diagram showing a state in which the lifting chassis is moved upward,
E is a diagram showing a state where the first disc on the lower side is ejected, F is a diagram showing a state where the lifting chassis is moved to the lower position and the disc is clamped,

FIG. 14 is a conceptual diagram showing the function of a power transmission mechanism of a conventional disk device.

[Explanation of symbols]

14 Conveying rollers (disc conveying means) 20,30 movable member 50 disk drive 60 lifting chassis 70 Open / close link mechanism 71, 72 moving member 80 First Disk Holding Means 81,82 Disc guide member 90 Lock member 91 lever 120 Positioning member 130 Clamping member 141, 142 rotating arm 160 Disc ejection member 164 Discharge arm 170 Planetary gear mechanism 171a sun gear 172 first gear 173 second gear 174 Planetary gear 181 relay gear 190 Power selection means 191 rotating arm 192 friction gear 193 First stopper 194 Second stopper 210 First Power Transmission Means 211 First transmission gear 220 Second Power Transmission Means 221 second transmission gear 230 Third Power Transmission Means 231 Third transmission gear 240 Fourth Power Transmission Means 241 Fourth transmission gear (first two-stage gear) 242 Reverse gear 243 connection gear (second two-stage gear) M motor

Claims (9)

[Claims] 1. A doorway for inserting and ejecting a disc, a first disc holding means for holding a newly inserted second disc, and a second disc holding a first disc to be ejected. A disk holding means, an elevating chassis having the first and second disk holding means, a movable member for moving the elevating chassis up and down, a disk held by the second disk holding means at the time of ejection, the doorway. A disc drive unit that pushes out in a direction, a disc transport unit that transports the disc between the entrance and the exit chassis, and a lock member that locks the first disc holding unit; A sun gear that rotates by obtaining the power of the motor, and a first gear and a second gear that rotate coaxially with the sun gear. A, a and the first gear the to lock the second gear is rotated, and a planetary gear mechanism in which the second of said first gear and locks the gear is rotated,
Power selection means for selectively locking the first gear and the second gear; first and second power transmission means for outputting first and second powers from the first gear; Third and fourth power transmission means for outputting third and fourth powers from a second gear, wherein the movable member is driven by the first power, and the locking member is the second power. A disk drive, the disk ejecting member is driven by the third power, and the disk transporting means is driven by the fourth power. 2. The rotation of the second gear is rotatably supported by the tip of a rotation arm rotatably provided on the planetary gear mechanism and meshed with the second gear. And a first stopper and a second stopper provided in the movement path of the friction gear. When the second gear rotates, the friction gear moves to move the first gear and the second stopper. The disk device according to claim 1, wherein the second gear is locked by contacting the first stopper or the second stopper. 3. The second stopper moves up and down together with the elevating chassis when the friction gear is separated from the second stopper, and the friction gear meshes with the second stopper. 3. The disk device according to claim 1, wherein only the elevating chassis is moved up and down when the elevating chassis is elastically supported by the elevating chassis so that the meshing is maintained. 4. The second power transmission means is a transmission gear that meshes with the second gear and rotates, and meshes with the lock member provided on the lifting chassis when the position in the lifting direction matches. The disk device according to claim 1, wherein 5. The third power transmission means is a transmission gear that meshes with the first gear and rotates, and meshes with a disc discharge member provided on a lifting chassis when the position in the lifting direction matches. The disk device according to claim 1, wherein 6. A first two-stage gear, wherein the fourth power transmission means has an upper gear and a lower gear, and the lower gear moves with the lifting chassis while meshing with the second gear, and an upper gear. A second two-stage gear having a lower gear and a lower gear and transmitting power to the disc transporting means;
When the lifting chassis moves to an upper position, the upper gear of the first two-stage gear and the reversing gear mesh with each other, and the lifting chassis is in the middle position. Position and the lower position, the lower gear of the first two-stage gear and the second gear
2. The disk device according to claim 1, wherein the lower gear of the two-stage gear meshes with the lower gear. 7. The movable member is provided with a cam groove for guiding a support pin provided on the lifting chassis and the clamp member, and the support pin is moved in one direction in the cam groove. 2. The disk device according to claim 1, wherein the lifting chassis and a clamp member that clamps the disk are moved up and down. 8. The disk device according to claim 7, wherein a path switching member that guides the support pin in one direction is provided in the cam groove. 9. The path switching member is provided with a restricting portion that restricts movement of the support pin in a direction opposite to the one direction, and when the support pin presses the restricting portion in the opposite direction, 9. The disk device according to claim 1, wherein the first gear is locked and the power of the motor is output from the second gear.