JP2001101754A - Disk recording and/or reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk recording and/or reproducing device that can reproduce a disk in a state that the disk is clamped and held from both sides. SOLUTION: A separation cam 82 is provided to both left and right sides of stacked trays freely movably forwards and backwards. The separation cam 82 is formed with 1st separation control sections 82c1 that move upward pins 2d or the like of a No.2 tray that is selected and pins 2d or the like above the pins 2d of the selected tray among a couple of the pins 2d or the like projected to the side of the trays and with 3rd separation control sections 82d. The 3rd separation control sections 82d consists of upper stage insertion sections 82j, middle stage insertion section 82k, and lower storage insertion sections 82m.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk recording and / or reproducing apparatus for recording and reproducing a plurality of disks.

[0002]

2. Description of the Related Art As a recording and / or reproducing apparatus for a disk mounted on a vehicle for reproducing sound, there is a disk player. This disc player uses a plurality of C
D (compact disk) is stored in a magazine, and a plurality of CDs are exchanged at once in a magazine unit. For this reason, the main body is accommodated in the trunk because of the increase in size, while only the parts necessary for operation are installed in the vehicle interior. However, the CD cannot be changed while the vehicle is running, and it is necessary to stop the vehicle and open the trunk, which is troublesome.

[0003] For this reason, in recent years, a disk player for use in a vehicle which is accommodated in a vehicle compartment has been developed. An in-vehicle disc player is required to be capable of accommodating a plurality of CDs, and is accommodated in a space defined by an in-dash in a vehicle cabin. Therefore, miniaturization of an in-vehicle disk player has become an important issue.

[0004] As a vehicle-mounted disc player,
For example, a disk storage unit is formed by stacking six trays for individually loading six CDs, for example, in a substantially rectangular parallelepiped housing (case) having a certain size called 1DIN size or the like.
The six CDs can be inserted and ejected individually, and one of the six CDs can be sequentially selected and played.

For example, when one of the six CDs is selected for reproduction, conventionally, six trays on which the CDs are placed are stacked vertically and an intermediate portion in the longitudinal direction is provided on an axis passing through the trays. Form a male screw with a large pitch and use it as a screw shaft, and by rotating this screw shaft, it is raised sequentially from the upper tray,
When the rotation of the screw shaft is stopped in a state where the selected tray on which the selected CD is placed is located in the middle portion of the screw shaft, a space is formed above and below the selected tray, so that the spindle motor and the turn are provided below the selected CD. Insert the table and pick-up unit, insert the claws that project upward from the center of the turntable into the holes of the CD by raising the turntable, mount the CD on the turntable, pull out the turntable, and then pull out the CD. Is rotated to play a CD.

[0006]

However, since the configuration is not such that the CD is sandwiched and rotated from both sides, the coupling between the turntable and the CD becomes insufficient and the vibration characteristic during reproduction deteriorates. In some cases, the CD may accidentally come off the turntable.

It is therefore an object of the present invention to provide a disk recording and / or reproducing apparatus which solves the above-mentioned problems.

[0008]

According to a first aspect of the present invention, there is provided a disk recording and / or reproducing apparatus comprising: a plurality of disk mounting means for mounting a disk; and a disk mounting means. A disc recording and / or reproducing apparatus comprising: a support means for stacking and supporting a plurality of discs; and a disc drive means having a turntable for mounting and rotating the selected disc. Means for movably supporting the disc in the stacking direction and urging the disc to one side in the stacking direction by the urging means, and the disc drive is mounted on one side of the selected disc mounting means on which the disc to be selected is mounted. A control means for forming a space for arranging the means is provided so as to be movable, and the control means is provided with a selected disc mounting means against the urging force of the urging means. 3. A disc recording and / or reproducing apparatus according to claim 2, further comprising a separation control section for moving the disc to the side to form the space. When the disc loading means is present on one side of the loading means, the disc drive has position limiting means for restricting the movement of the disc loading means on one side to the other side, and restricts the position of the disc loading means on one side. Wherein the space is formed between the selected disk mounting means and one of the disk mounting means, and the disk recording and / or reproducing apparatus according to claim 3, In claim 2, the position limiting means is formed in the control means, and the configuration of the disk recording and / or reproducing apparatus according to claim 4 is as follows.
According to a third aspect of the present invention, the position restricting means has a surface along the moving direction in the control means, and the configuration of the disk recording and / or reproducing apparatus according to the fifth aspect is the first aspect. 7. The disk recording and / or reproducing apparatus according to claim 6, wherein a pair of said control means are provided, and said space is formed on one side of said selected disk mounting means by movement of said pair of control means. According to a fifth aspect of the present invention, there is provided a disk recording and / or reproducing apparatus according to the seventh aspect, wherein the position limiting means is provided in each of the pair of control means. 10. The disk recording and / or recording apparatus according to claim 8, wherein a pair of the separation control units is provided, and the selected disk mounting unit is moved to the other side by the pair of separation control units. The construction of the raw device includes a plurality of disk mounting means for mounting disks, a support means for stacking and supporting the disk mounting means, and a disk driving means having a turntable for mounting and rotating the selected disk. And a disk recording and / or reproducing apparatus comprising: a disk holding means for holding a disk mounted on the turntable; wherein the disk mounting means is movably supported in the stacking direction by the support means; One side space for arranging the disk driving unit is formed on one side of the selected disk mounting unit on which the selected disk is mounted, by being configured to be urged to one side in the stacking direction by the urging unit. On the other side, control means for forming a space on the other side for arranging the disk holding means on the other side,
A first separation control unit, a second separation control unit, and a separation control unit including a third separation control unit provided between these separation control units are provided. The one separation control unit moves the selected disk mounting unit and the disk mounting unit on the other side than the selected disk mounting unit to the other side, and the second separation control unit accompanying the latter half moves to select the disk. The method according to claim 1, wherein only the disk mounting means on the other side than the disk mounting means is moved to the other side, and the selected disk mounting means is held by the third separation control unit. The configuration of the disk recording and / or reproducing apparatus according to the ninth aspect is described in claim 8
In the above, when the disc mounting means is present on one side of the selected disc mounting means, there is provided position limiting means for restricting movement of the one disc mounting means to the other side, and one side of the disc mounting means. 11. The recording and / or recording of a disk according to claim 10, wherein the space is formed between the selected disk mounting means and one of the disk mounting means by limiting the position of the mounting means. According to a ninth aspect of the present invention, in the playback device,
12. The control device according to claim 11, wherein
13. The disk recording and / or reproducing apparatus according to claim 10, wherein the position restricting means includes a surface along the moving direction in the control means. 9. The recording and / or reproducing apparatus according to claim 8, wherein the third separation control unit lowers the selected disc mounting means to move the selected disc on the turntable arranged in the one side space. The disc recording and / or reproducing apparatus according to the thirteenth aspect of the present invention has a descent control unit for placing the disc on which the disc is placed. A spring means for pressing from the other side is provided, and the spring means releases the pressing of the disk by the control means.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a disk recording and / or reproducing apparatus according to the present invention will be described.

In this embodiment, the present invention is applied to a disc player for reproducing sound. (A) Overall Configuration of Disc Player Structure As shown in FIGS. 1 to 11, a disc player is roughly divided into a case 1 that forms an external shape, and a disc that is arranged on the front side of the case 1 and stores a CD. The storage unit 3, a transfer unit 5 provided in the insertion / removal opening 4 of the front plate 1 a of the case 1, for inserting and ejecting a CD into and from the disk storage unit 3, and a transfer unit 5 provided on the front side of the transfer unit 5. Opening / closing means 6 for opening / closing the insertion / removal opening 4 of the front plate 1a, and reproducing means arranged on the back side in the case 1 for selecting and reproducing one of the CDs in the disk storage unit 3. 7, pushing means 8 provided on the left and right sides on the back side of the disk storage section 3 and for pushing out the CD to be ejected toward the transfer means 5, and main and outer sides of the left and right side plates 1b and 1c of the case 1. And operation means 9 for operating the disk storage unit 3, the reproduction means 7, and the like.

The reproducing means 7 is arranged on both sides of the pickup elevating platform 10 which moves up and down, and forms a space above and below a selected CD among a plurality of CDs in the disk storage unit 3. Means 11, a holding means 14 constituted by a lower arm 13 and an upper arm 12 rotatably provided on the pick-up elevator 10 and holding the selected CD by entering the space and
C attached and clamped to the lower arm 13
A disk drive means 15 for rotating and driving D; a pickup unit 16 provided on the lower arm 13 for reading information from a rotating CD; an insertion / removal mode for inserting / removing a CD; The rotation power supply means 17 which transmits the driving force of the transfer means 5 to the holding means 14 to rotate only in the playback mode of the playback mode in the state of the above, and the timing at which the holding means 14 holds the CD. And a regulating means 18 for setting. (B) Case First, Case 1 will be described. Case 1 is front panel 1
a, side plates 1b and 1c, a ceiling plate 1d, and a bottom plate 1e, and the back surface is open. The side plates 1b and 1c and the bottom plate 1e are integrated. (C) Disk Storage Unit As shown in FIG. 3A, the disk storage unit 3 is composed of six trays 2 as disk mounting means and a disk elevating table 22 on which the six trays 2 are mounted. The front side of the case 1 is provided as a support means along the vertical direction.
Both ends of the guide post 23 are connected to and supported by the bottom plate 1e and the ceiling plate 1d.

As shown in FIG. 4, the tray 2 is formed by attaching a resin 2b to the upper surface on both sides of a thin aluminum plate 2a. A pair of pins 2c and 2d protruding sideways are formed in the middle part and the back side of each resin 2b, and the front side is long and the back side is short. The height of the resin 2b is CD
The thickness is set to be approximately the same as the thickness of the resin 2b, and the front side of a leaf spring 2e as a spring means for sandwiching the CD between the resin 2b and the aluminum plate 2a is fixed to the upper surface of the resin 2b. A holding portion 2f for pressing a CD is formed inside the back side of the leaf spring 2e, and a receiving portion 2g pressed down by a lower surface of a separation cam 82 described later, and an upper fitting portion described later are formed outside the back side. A receiving portion 2h that receives an upward force is formed by the lower surface of 82j. Guide holes 2i for inserting the guide columns 23 are formed on the front side and the back side of each resin 2b so as to penetrate the resin 2b and the aluminum plate 2a. CD on both sides of aluminum plate 2a
A cushioning material (not shown) is adhered along a circular arc at a portion where the vicinity of the outer peripheral surface of the contact member comes into contact. At both ends of the resin 2b in the uppermost tray 2, a cylindrical shape for receiving a coil spring 24 as an urging means provided between the ceiling plate 1d and the uppermost tray 2 as shown in FIG. Spring receiver 2j
As shown in FIG. 3B, the lower end of the spring receiver 2j projects slightly inward to form a receiving part 2k, and the lower end of the coil spring 24 is received by the receiving part 2k. This is provided so that the load required for compression does not become too large even if the compression length is increased by using a long spring.

On the other hand, the disk elevator 22 is formed in a shape in which the left and right ends are bent upward. A guide hole 22a for inserting the guide post 23 is formed in a horizontal portion, and a pair of pins 22b for raising and lowering the disk lift 22 is projected outside the left and right vertical portions in a horizontal direction. It is fixed. These pair of pins 22b
Are inserted through two vertical slits 25 formed in the side plates 1 b and 1 c of the case 1 and protrude outside the case 1.

The disk lift 22 and the six trays 2
Are inserted into the guide holes 22a and 2i.
Is supported so as to be able to move up and down freely. The upper end and the lower end of four spring guides 26 are fixed to the ceiling plate 1d and the bottom plate 1e of the case 1, respectively.
6 is inserted through the spring receiver 2j. The lower end of a coil spring 24 as an urging means provided so as to surround the spring guide 26 is in contact with the receiving portion at the lower end of the spring receiver 2j. (D) Transfer Means As shown in FIG. 2, the transfer means 5 includes a front plate 1 of the case 1.
a. An insertion opening 4 is formed in the front plate 1a. A drive shaft 30 and a driven shaft 31 are rotatably supported by the insertion / removal opening 4. Both ends of the drive shaft 30 are rotatably attached to the front plate 1a. Both ends of the driven shaft 31 are elongated holes 3 formed on the side surface of the front plate 1a so as to be elongated in the vertical direction.
2 is inserted. In order to support the intermediate portion between the drive shaft 30 and the driven shaft 31, the small-diameter portion at the intermediate portion of the drive shaft 30 rotates in the groove 33a on the back side of the resin bearing 33 whose downward movement is restricted as shown in FIG. The small-diameter portion of the intermediate portion of the driven shaft 31 is rotatably fitted on the back side groove 34a of the resin bearing 34 which is vertically movable via a pair of guide projections and a pair of guide grooves (not shown). I have. A pair of rollers 35 made of resin is attached to the driven shaft 31, and a pair of rollers 36 made of rubber are attached to the drive shaft 30, both of which are restrained from sliding in the axial direction by a retaining ring (not shown). . Circumferential grooves are formed at both ends of the driven shaft 31, and the driven shaft 31 is urged toward the drive shaft 30 by the spring hook pin 37 fixed to the side surface of the front plate 1 a and the portion of the circumferential groove. Ends of a spring 38 are engaged.

The means for driving the drive shaft 30 will be described. As shown in FIG. 6, a gear 39 is fixed to the right end of the drive shaft 30, and a gear 40 is provided inside the right side plate 1c.
, A gear 41 and gears 42 and 43 integrated with each other are rotatably supported. A worm 44 and a gear 45 meshing with the gear 43 are integrally and rotatably supported on the bottom plate 1e, and the transfer motor 4 attached to the bottom plate 1e.
The worm 47 fixed to the output shaft of No. 6 meshes with the gear 45.

After the insertion of the CD by the rollers 35 and 36 is completed, a pushing means 48 is provided as shown in FIGS. ing. Three pairs of elongated guide holes 4 are provided above and below the insertion opening 4 in the front plate 1a.
9, 50 and 51 are formed along the horizontal direction. A pair of slide stands 52 are provided on the left and right sides on the back side of the front plate 1a, and three guide pins 53, 54, 55 fixed to the slide stand 52 cannot be pulled out into the guide holes 49, 50, 51. It has been inserted. On the rear side of each slide table 52, a vertical roller 5 made of resin is interposed via a vertical shaft 56.
7 is rotatably supported. A pair of slide tables 52
A push spring 60 is provided between a spring hooking portion 58 formed on the front plate 1a and a spring hooking portion 59 formed on the slide base 52 in order to urge them toward each other.

The CD at the height where the vertical roller 57 is disposed
Is positioned in the horizontal direction by a vertical roller 57. The positioning of CDs below and above the vertical roller 57 is performed by positioning rods 6 standing on a bottom plate 1e as shown in FIG.
1 and 62 and a pair of positioning rods (not shown) attached to the ceiling plate 1d so as to hang down.
The positioning rods 61,
62, a space through which a CD to be inserted and removed is formed). (E) Opening / Closing Means The opening / closing means 6 for opening and closing the insertion opening 4 of the front plate 1a will be described. As shown in FIG. 2, a shutter 64 is provided on the front side of the front plate 1a so as to be movable up and down. The shutter 64 has an opening 64a for allowing the CD to pass therethrough. When the shutter 64 rises, the intermediate height position of the opening 64a occupies the boundary position between the rollers 35 and 36, and the shutter 64 opens. Is closed when it falls.

That is, a pair of guide pins 65 are provided upright on the left and right sides of the front plate 1a, while a pair of vertically long guide holes 64b are formed in the shutter 64 and inserted through the guide holes 64b. A retaining ring is fitted to the tip of the guide pin 65. In order that the interval between the pair of slide tables 52 can be increased only when the shutter 64 is raised and opened, the pair of guide pins 54 near the center is more than the other guide pins 53 and 55. The shutter 64 has an L-shaped guide hole 64c which is set to be long and through which the guide pin 54 is inserted. The upper surface of the guide hole 64c has a pair of vertical rollers 57 for some reason.
A guide rail portion 64d is formed so that the shutter 64 is forcibly raised and opened when the CD is forcibly ejected by widening the interval between them.

Next, a link mechanism for opening and closing the shutter 64 will be described. Guide holes 66a long in the left-right direction are formed in the front and lower surfaces of the left and right slide plates 66 having a substantially L-shaped cross section, and the guide pins 67 inserted into the guide holes 66a are fixed to the front plate 1a and the bottom plate 1e. ing. A cam hole 64e is formed in a lower portion on both sides of the shutter 64, and a slide pin 66b is fixed to both ends on the front side of the left and right slide plate 66, and the slide pin 66b
Are inserted through the cam holes 64e. Left and right slide plate 66
As shown in FIG. 17 (b), spring hooks 66c, 68 projecting downward are formed on the lower surface of the bottom surface 1e and the lower surface of the bottom surface 1e, and a return spring 69 is hooked between them. A front and rear slide plate 70 is provided on the lower left surface of the bottom plate 1e so as to be slidable in the front and rear direction.
Is provided. That is, a pair of guide holes 70a is formed in the front and rear slide plate 70, and a headed pin (not shown) inserted into the guide hole 70a is fixed to the bottom plate 1e. A bent portion of a substantially L-shaped lever 72 is rotatably attached to the lower surface of the bottom plate 1e via a fixed shaft 73 as shown in FIG. 5, and long holes 72a, 72a are formed at the tip of the lever 72, respectively. . The pins 66 d and 70 b fixed to the left and right slide plates 66 and the front and rear slide plates 70 are elongated holes 72.
a and 72a. The front and rear slide plate 70 is formed with a pressed portion 70c pressed by an outer slider 140 described later. (F) Reproducing means The reproducing means 7 is arranged close to the back of the disc housing 3 in order to make the depth of the disc player as small as possible. Since the holding means 14 in the reproducing means 7 is mounted on the pickup elevator 10 as shown in FIG. 2, the pickup elevator 10 will be described first.

The pick-up elevator 10 is formed by integrally forming a horizontal plate and vertical plates on both sides thereof. An arc-shaped notch 10 is formed on the front side of the horizontal plate so that a CD can be inserted therein.
a is formed. A pair of pins 77 for raising and lowering the pickup elevator 10 is fixed to each vertical plate so as to protrude in the horizontal direction. The pair of pins 77 are arranged at the same height, and the pair of pins 2
2b. These pins 77 are inserted through a pair of vertical slits 78 formed in the side plates 1 b and 1 c of the case 1 and protrude out of the case 1.

Space forming means (control means) As shown in FIG. 2, inside the vertical plates on both sides of the pick-up elevator 10, trays 2 vertically overlapping each other are provided.
A separation cam 82 made of resin is slidably provided in the front-rear direction as space forming means (control means) 11 which forms a space above and below the selected CD by being inserted between the two. That is, a guide hole 10a is formed in the upper portion of the front surface of the vertical plate of the pick-up elevator 10 and a guide pin 82a with a head inserted through the guide hole 10a is fixed to the separation cam 82, while FIG. As shown, a guide hole 82b is formed below the separation cam 82, and the headed guide pin 10b of FIG. 2 inserted through the guide hole 82b.
Is fixed to an intermediate position in the front-rear direction of the vertical plate.

The separation cam 82 is inserted toward the tray 2, and the four pins 2c and 2d on both sides of the tray 2 are pushed up to stably support the tray 2 and the tray 2 on which the CD to be reproduced is loaded. A space is formed above and below. The separation cam 82 has a shape in which slits are formed on two plates having different lengths in the front-rear direction and bonded to each other. By sliding the separation cam 82 to both sides of the tray 2, the front side is A pair of long pins 2 on tray 2
c is moved upward, and a pair of short pins 2d are moved upward on the rear side.

That is, the configuration is as follows. A pair of first separation control units 82c for moving the selected tray 2 on which the selected CD is loaded and the tray 2 above the selected tray 2
₁ and 82c ₁ are formed, and the respective first separation control units 82c ₁ are formed.
The second separation control units 82c ₂ and 82c ₂ for moving only the tray 2 above the selection tray 2 upward are formed above the selection tray 2. Then, the first separation control unit 82c ₁ is provided between the second separation control unit 82c ₂ third separation control unit 82d for holding only the selected tray 2 are formed respectively, the first separation control portions 82c ₁ second Separation control unit 82c ₂ and third separation control unit 8
2d constitutes a separation control unit. An upper surface 82f that holds the positions of the pins 2c and 2d of the tray 2 above the selected tray 2, and a receiving portion 2g of the leaf spring 2e that holds the positions of the pins 2c and 2d of the tray 2 below the selected tray 2.
And a lower surface 82h as a position restricting means for pressing the separation cam 82 along the moving direction of the separation cam 82.

The pins 2c and 2d of the selection tray 2 and the tray 2 above the selection tray 2 are connected to the first and second separation control units 82c.
_1, since it is pushed up by the advance of 82c _2, originally is set to a constant value such as, for example, theta = 45 °. But,
Here, the tray 2 rises while compressing the coil spring 24. As the position of the tray 2 increases, the amount of compression of the coil spring 24 increases, and the load applied when pushing up the tray 2 increases. In other words, the coil spring 2
In the initial stage of the compression of No. 4, the load is small. For this reason, as shown in FIG.
The upper part of c ₁ and 82c ₂ is, for example, θ ₁ = 45 °,
The lower portion is set to, for example, θ ₂ = 60 °, and an intermediate portion between the two is formed by an arc-shaped surface so that the load becomes constant.

Next, the third separation control units 82d, 82d will be described. The third separation control units 82d, 82d include upper fitting portions 82j, 82j, middle fitting portions 82k, 82k as lowering control portions, and lower fitting portions 82m, 82m. The upper fitting portion 82j, 82j is the selection tray 2
The middle-stage fitting portions 82k and 82k lower both the selection tray 2 and the selection CD to lower the selection CD on the turntable 97 of the lower arm 13.
And the lower fitting portion 82m, 82m
Is for lowering only the selected tray 2 again to separate the selected tray 2 from the selected CD.

Holding means 1 Holding means 1 for holding the selected CD by rotating toward the space above and below the selected CD formed by the space forming means 11.
4 will be described. The base ends of the lower arm 13 and the upper arm 12 are rotatably attached to the left side of the pick-up elevator 10. That is, it is as follows.
As shown in FIG. 8, the lower arm 13 is fixed to the vicinity of the lower end of the hollow shaft 86, and the lower end of the hollow shaft 86 is rotatably penetrated through the pickup elevating table 10, and the lower end of the hollow shaft 86 is used to prevent it from falling off. , A flat washer 93 and a retaining ring 94 are attached. A sleeve 87 made of a copper alloy penetrates and is fixed to the base end of the upper arm 12.
When the upper shaft 12 is parallel to the lower arm 13 by inserting the hollow shaft 86 through the lower shaft 13, the selected CD is lowered and held. A flat washer 88 is inserted through the upper end of the hollow shaft 86, and a retaining ring is attached to the hollow shaft 86. An upper arm 1 is provided between the flat washer 88 and the sleeve 87.
2 is provided with a holding spring 89 for urging the holding member 2 downward. Also, as shown in FIG. 7, a slide provided on the lower arm 13 so that the lower arm 13 and the upper arm 12 rotate integrally and synchronously around the hollow shaft 86 without relatively rotating. A moving pin 90 is slidably inserted into a hole 91 formed in the upper arm 12. In order to improve the positioning accuracy of the turntable 97 and the CD, which will be described later, on the lower arm 13 when the holding means 14 is rotated, a column supported on the bottom plate 1e is provided in the hollow shaft 86 on the pickup lifting platform 10. 92 are inserted.

Disk Drive Means A disk drive means 15 is provided on the upper surface of the tip of the lower arm 13. That is, as shown in FIG. 7, a spindle motor 96 is attached, and an output shaft of the spindle motor 96 is attached with a turntable 97 that fits into a center hole of the CD. On the other hand, one end of a support plate 98 is fixed near the tip of the upper arm 12 as shown in FIG. 34, and a circular hole is formed at the other end. A chuck plate 99 as a disk holding means, which is formed of resin and has a ridge-like convex portion formed along a circle on the lower surface of the disk, is rotatably fitted into the hole from above. The chuck plate 99 is prevented from falling off by the other end of a spring plate (not shown) having one end fixed to the lower surface of the upper arm 12. The CD is held by the turntable 97 and the chuck plate 99.

Pickup Unit On the upper surface of the lower arm 13, a pickup unit 16 is also mounted as shown in FIG. Pickup unit 1
The configuration of No. 6 will be described below. The optical pickup 16 is guided via a guide rail 161 formed integrally with the lower arm 13.
2 is provided movably along the length direction of the lower arm 13. Further, means for reciprocating the optical pickup 162 along the guide rail 161 is provided. A pair of bearing members 163 is provided on the upper surface of the lower arm 13.
A screw shaft 164 is rotatably supported via the optical pickup 162, and a female screw portion (not shown) of the optical pickup 162 is screwed to the screw shaft 164. The output shaft of a scanning motor 165 fixed near the sleeve 87 is linked to the screw shaft 164. That is, a gear 168 in which the worm wheel 166 and the screw gear 167 are integrated is rotatably supported, and the worm 169 of the output shaft is connected to the worm wheel 166.
On the other hand, the screw gear 170 attached to the screw shaft 164 meshes with the screw gear 167.

Turning power supply means The structure of the turning power supply means 17 for rotating the holding means 14 by the driving force of the transfer motor 46 will be described below. A gear train 103 is provided inside the left side plate 1b of the case 1 as shown in FIG. That is, the gear train 103
It comprises gears 103a to 103h. On the other hand, a gear 104 is also fixed to the left end of the drive shaft 30. A plate 105 is provided inside the left side plate 1b so as to be movable in the vertical direction. That is, the plate 10
5, a guide hole 105a elongated in the vertical direction is formed, and a guide pin 106 inserted into the guide hole 105a is formed.
(See FIG. 28) is fixed to the left side plate 1b, and a retaining ring is attached to the guide pin 106. Plate 10
5 and the bottom plate 1e of the case 1
b, 107 are formed, and a return spring 108 for urging the plate 105 downward is provided between them. An escape hole 105c through which a shaft 109 (fixed to the side plate 1b) of the gear 103h is inserted is formed in the plate 105, and a base end of a lever 110 is rotatably attached to the shaft 109. . A moving shaft 111 that penetrates the lever 110 is fixed to the tip of the lever 110, and the moving shaft 1
A gear 112 that meshes with the gear 103h is rotatably attached to 11. A cam hole 105d is formed above the escape hole 105c in the plate 105, and a penetrating end of the moving shaft 111 is inserted into the cam hole 105d.
That is, when the plate 105 is moved upward, the cam holes 105d
Moves upward, and the moving shaft 11 inserted into the cam hole 105d is moved.
Since 1 moves to the front side, the gear 112 attached to the moving shaft 111 also meshes with the gear 104 of the drive shaft 30. In order to move the plate 105 upward, an intermediate portion of the lever 113 is rotatably supported inside the left side plate 1b via the pin 114, and one end of the lever 113 is rotatably supported via the pin 115. Is joined to the bottom. The other end of the lever 113 faces the lower part of the front side of the pair of guide holes 25 of the left side plate 1b into which the pins 22b of the disk lift 22 are inserted. In other words, when the disc lifting / lowering table 22 comes to the lowermost position and enters the reproduction mode, the pin 22b pushes the other end of the lever 113 downward, and the gear 112 meshes with the gear 104.

Next, the uppermost gear 103 of the gear train 103
a and the lower arm 13 of the holding means 14 are interlockingly connected as follows. As shown in FIG. 2, a slide bar 116 including a vertical portion elongated in the front-rear direction and a horizontal portion integrally formed on the back side of the vertical portion is provided. A pair of guide holes 116a are formed near both ends of the vertical portion of the slide bar 116, and as shown in FIG.
A pair of guide pins 117 inserted through 16a is fixed inside the left side plate 1b, and a retaining ring is attached. In this manner, a rack 116 is provided at a lower portion on the front side of the slide bar 116 which can be slid in the front-rear direction.
b is formed so as to mesh with the gear 103a, while the front end of the horizontal portion on the rear side has an engagement pin 116c projecting downward.
Is fixed at the upper end. The engaging pin 116c is formed integrally with the base end of the lower arm 13 as shown in FIG. 7 and is loosely fitted in a long hole 13a extending to the height of the upper arm 12. As shown in FIG. 9, the elongated hole 13a is formed to extend along a straight line in the radial direction passing through the axis of the sleeve 87 and perpendicular to the sleeve 87.

The disc player has a disc storage unit 3
There are two operation states: an insertion / removal mode in which a CD is inserted or ejected from the inside, and a reproduction mode in which a CD is reproduced. In the former case, the holding means 14 is moved to the B position as shown in FIG. In the latter case, the position A is occupied as shown in FIG. The rotation of the holding means 14 between the B position and the A position is performed via the turning power supply means 17 as described above.
However, the selected CD and the turntable 9 on the lower arm 13
1 is required to be positioned with high accuracy.
0 positioning means 118 is provided.

The structure of the positioning means 118 will be described below. As shown in FIGS. 9 and 10, near the hollow shaft 86 of the lower arm 13, an upper end of a positioning pin 119 projecting downward is fixed. On the other hand, the holding means 14
The pick-up elevator 10 in a portion corresponding to the range in which the positioning pin 119 moves when the is rotated, has an arc hole 10.
The positioning pin 119 is loosely fitted in the arc hole 10c. A spring hook 10 d is formed on the pickup elevating platform 10 so as to protrude downward. Both ends of the toggle spring 120 are hooked between the spring hook 10 d and the positioning pin 119. Assuming that the positions occupied by the positioning pins 119 when the holding means 14 occupy the positions B and A are positions b and a, the position c which is an intermediate point between b and a is the position of the positioning pin 1.
19 is an inflection point at which the direction of movement changes, and the spring hook 10d is arranged at a position corresponding to the position c.

Restriction means The upper arm 12 of the holding means 14 is urged downward by the holding spring 89 to set the timing of lowering the upper arm by the urging force of the holding spring 89 as shown in FIG. Is provided. That is, it is configured as follows.

A cylindrical plate 124 is provided between the holding means 14 and the separation cam 82 on the upper surface of the pick-up elevator 10.
Is erected. This cylindrical plate 124 forms a partial cylinder which is a part of a cylinder centered on the sleeve 87,
As shown in FIGS. 32 and 33, the cylindrical plate 124 is formed with an L-shaped guide hole 125 including a horizontal portion 125a that is long in the circumferential direction and a vertical portion 125b that is long in the axial direction. On the other hand, a guide pin 12 a protruding outward in the radial direction around the sleeve 87 is fixed to the base end of the upper arm 12, and the guide pin 12 a is inserted into the guide hole 125. For this reason, in FIG. 7, when the holding means 14 occupies the position B of the standby position and before the position B occupies the position A of the reproduction position, the guide pin 12a is in the guide hole 125.
Because the upper arm 12 does not descend even if the urging force of the holding spring 89 is applied, the holding means 14 maintains the open state while the holding means 14 comes to the position A, Since the guide pin 12a is located at the vertical portion 125b, the upper arm 12 is lowered by the urging force of the holding spring 89, and the guide pin 12a is also lowered to the lower end of the vertical portion 125b.

Even if the holding means 14 is rotated to the position A in FIG. 7 and the guide pin 12a is turned to the vertical portion 125b of the guide hole 125, the holding means 14 does not immediately carry out the holding operation but gives a command. In order to operate for the first time,
First regulating means for temporarily regulating the downward movement of the guide pin 12a, and regulation when the separation cam 82 moves forward after the regulation and the selected CD and the selected tray 2 descend and rest on the turntable 97. Is released and a second regulating means for clamping the selected CD is provided. That is, it is configured as follows. As shown in FIGS. 7 and 30, a bearing plate 126 is provided upright on the upper surface of the pick-up elevator 10 between the cylindrical plate 124 and the separation cam 82, as shown in FIGS. As shown in FIG. 7, an intermediate portion of a restraining lever 127 is rotatably supported via a rotating shaft 129 inside the bearing plate 126, and a pin 127a protruding outward is provided on the front side of the restraining lever 127. Is fixed,
The rear side is bent inward and faces the vertical portion 125b of the guide hole 125. As shown in FIG. 30, there is provided a spring 128 for urging the rear side of the restraining lever 127 downward. On the other hand, restraint lever 1
The pin 127a on the front side of the cover 27 is loosely fitted in a cam groove 82r formed in the lower part inside the separation cam 82 as shown in FIG. An escape portion is formed in the upper portion on the back side of the cam groove 82r, and the separation cam 82 moves to the front side, so that the pins 2c and 2d of the selection tray 2 are inserted into the middle fitting portions 82k and 8k.
2k, the pin 127a can escape to the escape portion of the cam groove 82r, the restraining lever 127 is rotated by the spring 128, and the upper arm 12 is biased by the holding spring 89.
Is set to descend. (G) Pushing means Pushing means 8 are provided on the left and right inside the case 1.
Since these have substantially the same configuration, only one will be described. As shown in FIGS. 1 and 19, a pushing lever 132 for pushing out a CD by rotating is rotatably attached to a fixed shaft 133 projecting downward from a ceiling plate 1 d of the case 1. The height of the pushing lever 132 is set to be the same as the height between the rollers 35 and 36.
Further, both ends of a return spring 134 provided so as to surround the fixed shaft 133 are hooked on a spring hook 132a formed on the push lever 132 and a spring hook formed on the ceiling plate 1d. On the other hand, the push lever 132 is configured to rotate by moving to the rear side, which is the opposite direction to the space forming operation by moving to the front side of the separation cam 82 described above. That is, it is as follows. As shown in FIG.
A plate 135 is slidable in the front-rear direction by a predetermined amount. That is, a pair of guide holes 126a are formed in the bearing plate 126, and the guide pins 135a inserted into the respective guide holes 126a are
35. The front side end of the plate 135 is bent inward so as to be able to engage with the pressed portion 132 b integral with the push lever 132, and the rear side end is bent outward to be behind the separation cam 82. It is protruding. (H) Operating Means Finally, the operating means 9 will be described. This operating means 9
In the insertion / removal mode, the disc lifting / lowering table 22 is raised and lowered to enable insertion / removal of a CD on the tray 2 at each stage, and further, the opening / closing means 6 is opened or the pushing means 8 is operated, and the reproduction mode is set. In this case, the pickup elevator 10 is moved up and down with the disc elevator 22 held at the lowest position to select the selected CD, and further, the space forming means 11 is operated and the regulating means 18 is operated.

As shown in FIGS. 2 and 11, outside the left and right side plates 1b and 1c of the case 1, an inner slider 139 and an outer slider 140 are slidably provided in the front-rear direction. Since it is left-right symmetric, one will be described. Guide holes 139a, 1 above and below the inner and outer sliders 139, 140
40a are formed and guide pins 158 fixed to the side plate,
159 is inserted into both the guide hole 139a and the guide hole 140a, and the guide pins 158 and 159 are provided with retaining rings. On the back side of the inner slider 139, a pair of stair slits 141 for raising and lowering a pair of pins 77 of the pickup lift 10 protruding from the vertical slit 78 in six steps are formed. On the front side of the inner slider 139, a pair of stair slits 142 for raising and lowering a pair of pins 22b of the disk elevating table 22 projecting from the vertical slit 25 in six steps are formed, and below each stair slit 142. In the reproduction mode, floor slits 143 are formed continuously to hold the disk elevator 22 at the lowermost position and move only the pickup elevator 10 up and down. On the other hand, the outer slider 140 is formed with only a slit into which a pair of pins 22b of the disk lift 22 which is a long pin enters. That is, a pair of square insertion / removal mode slits 144 for inserting the pair of pins 22b into the step slit 142 and moving the pins 22b up and down.
And a pair of horizontal linear reproduction mode slits 145 to be inserted into the floor slit 143 and held at the lowest position.
By sliding the outer slider 140 in either direction, the pin 2 is formed by the tapered surfaces 146a and 146b.
The switching slit 14 inclined at 45 ° to move the pair of pins 22b between the pair of stair slits 142 and the floor slit 143 by moving the pair 2b up or down.
6 are formed in communication with each other. If the vertical positions of the reproduction mode slits 145 are the same, the slits overlap and communicate with each other. Therefore, the reproduction mode slit 145, the insertion / removal mode slit 144, the floor surface slit 143, and the staircase slit 142 The heights of the pins 22b inserted therein are different from each other.

The upper portion on the back side of the outer slider 140 is bent inward at a right angle to form a protrusion 140b. An escape notch 139b and an escape slit 147 are formed on the back side of the inner slider 139 and the side plate 1b so that the protrusion 140b can move together with the outer slider 140. In order to allow the separation cam 82 to slide integrally with the outer slider 140 irrespective of the height position of the separation cam 82 which moves up and down together with the pick-up elevator 10, an outer surface on the back side of the separation cam 82 as shown in FIG. An engaging groove 82s is formed along the vertical direction, and a protrusion 140b is slidably fitted in the engaging groove 82s. The front side of the outer slider 140 on the left side is bent downward under the bottom plate 1e of the case 1 to form the engaging portion 140c.
Are formed. When the outer slider 140 slides rearward, the engaging portion 140c is
Is pressed to the rear side, and the shutter 64 is opened irrespective of the urging force of the return spring 69.

Next, a description will be given of a driving mechanism for simultaneously sliding the right and left sliders of the inner slider 139 and the outer slider 140 simultaneously. As shown in FIGS. 2 and 6, two connecting shafts 148, 1 are provided below the bottom plate 1e of the case 1 and on the rear side via two pairs of bearings.
49 are rotatably supported. Each connecting shaft 14
8 and 149, pinions 150 and 151 are fixed to both ends, and these pinions 150 and 151 are
9. It engages with racks 139c and 140d formed at the lower part on the back side of the outer slider 140. Connecting shaft 14
Gears 152 and 153 are fixed to 8,149.
These gears 152 and 153 have operation motors 154 and 15 respectively.
5 are individually linked. That is, it is as follows. The operation motor 15 is located at a vertical position inside the bearing plate 126 disposed on the right side of the rear side in the case 1.
5,154 are mounted, and these motors 155,1
The 54 output shafts are operatively connected to the gears 152 and 153 via two sets of reduction means 156 and 157 provided inside the bearing plate 126.

Next, the operation of the disc player will be described.

(I) Overall Configuration of Operation The operation of the disc player is as follows.
And the ejection of a CD from the disc storage unit 3, and the reproduction of a CD for selecting and reproducing one of a plurality of CDs stored in the disc storage unit 3.

(J) Insertion of CD When inserting a CD into the disc storage unit 3, select the number assigned to the tray 2 (numbered 1 to 6 from top to bottom). After pressing a number button (not shown), for example, a button "2", an insert button (not shown) is pressed. The rotation of the output shaft of the operation motor 154 is transmitted to the speed reduction means 156 and the connecting shaft 148, and a pair of inner sliders 139 are provided.
And the rotation of the output shaft of the operation motor 155 is transmitted to the speed reduction means 157 and the connecting shaft 149, and the pair of outer sliders 140 slide independently of each other. A pair of pins 22b enter into a pair of slits 144 for the insertion / removal mode of the outer slider 140, for example, as shown in FIG.
When the button is pressed when the pair of pins 22b are at the mode switching position in the insertion / removal mode as shown in FIG. 2, the inner slider 139 retreats, and as shown in FIG. 142 rises from the bottom to the second, and the disk lift 22 also rises, and the CD on the second tray 2 from the top is pushed by the push lever 132
Is set to the height of At this time, the pick-up elevator 10 also moves up at the same time, but this is an unnecessary movement. If the inner slider 139 is further retracted, the pins 22b
At the same time, the pick-up elevator 10 moves up, and 3 to 6
The second tray 2 is at the height of the push lever 132.

Next, the pin 2 is moved from the standby position shown in FIG.
When the outer slider 140 is retracted until the outer slider 2b comes, the engaging portion 140c of the outer slider 140 presses the pressed portion 70c shown in FIG. Left and right slide plate 6 through
6, the left and right slide plates 66 move leftward against the urging force of the return spring 69, and the shutter 64 rises to
The insertion / removal port 4 is opened as shown in FIG.

By the above operation, the shutter 64 is opened, and the second tray 2 from the top is pushed by the push lever 1 as described above.
As shown in FIG. 17A, when trying to insert the CD 171 between the upper and lower rollers 35 and 36, a sensor (not shown) arranged in the center of the shutter 64 in front of it detects the CD 171. Then, the transfer motor 46 starts rotating. Since the rotational force of the transfer motor 46 is transmitted to the roller 36 via a gear, the CD 1 is interposed between the roller 35 and the roller 35 urged by the spring 38 as shown in FIG.
71 is engaged, and the rotation of the rollers 35 and 36 causes C
D is inserted on the second tray 2 from the top,
Since the 171 is inserted only up to the state separated from the rollers 35 and 36, the remaining few mm are pushed by a pair of vertical rollers 57 urged toward the center by the pushing spring 60. The CD 171 is held on the tray 2 by the holding portions 2f of the pair of leaf springs 2e. CD17
When the roller 1 moves away from the rollers 35 and 36, a limit switch (not shown) is operated to stop the rotation of the transfer motor 46, and at the same time, the outer slider 140 moves forward and returns to the standby position shown in FIG. The pressed portion 70c pressed toward the front is released, and the shutter 64 is closed by the action of the return spring 69.

In the case where the pair of pins 22b occupy other height positions (first, third to sixth from the bottom) of the step slit 142, the CD can be inserted by the same operation as described above.

(K) Ejecting a CD When ejecting a CD from the disc storage unit 2, for example, a number button "2" and an eject button are pressed. Then, similarly to the insertion, the pin 22b moves from the switching position of the insertion / removal mode in FIG. 12 to the standby position in FIG.
The CD on the second tray 2 is set at the height of the push lever 132. Then, as described above, when the outer slider 140 is retracted until the pin 22b comes to the position shown in FIG. 13B, the shutter 64 opens. The operation up to this point is exactly the same as when a CD is inserted.

Next, as shown in FIG. 14, the outer slider 140 is further retracted until the pin 22b comes to the front side of the insertion mode slit 144, and as shown in FIG. The separation cam 82 interlocked with the outer slider 140 moves backward through the separation cam 8
2 pushes the back side of the plate 135 to retreat. Then, the front side of the plate 135 is the push lever 13
2 by pushing the pressed part 132b to the rear side.
2 rotates and pushes both sides of the second CD 171 from the top. At the same time when the discharge button is pressed, the transfer motor 46 rotates and the rollers 35 and 36 have already rotated, so that the pushed CD 171 is discharged between the rollers 35 and 36 as shown in FIG. In order to prevent the CD 171 from dropping due to ejection, when a part of the back side of the CD 171 is sandwiched between the rollers 35 and 36, a limit switch (not shown) detects this and stops the rotation of the transfer motor 46. . After that, manually insert the CD 171 onto the pair of rollers 3.
It will be extracted from between 5, 36. When a sensor (not shown) detects that the CD 171 has been removed, the outer slider 140 moves forward, and the pin 22b returns from the position in FIG. 14 to the standby position in FIG.

Then, the separation cam 82 moves the plate 135
The pushing lever 132 is rotated by the urging force of the return spring 134 to return to the original position shown by the solid line in FIG.
The shutter 64 is closed in the same manner as after the insertion.

When the pair of pins 22b occupy other height positions (1, 3rd to 6th from the bottom) of the step slit 142, the CD can be ejected by the same operation as described above.

(L) Playback of CD To play back a CD, the user presses, for example, a number button with the number of the selected CD, such as the "2" button, and a play button. Then, as shown in FIG. 12, the inner slider 139 moves forward from the state shown in FIG.
Is moved down to the lowermost position of the insertion / removal mode slit 144 to reach the mode switching position, and then the outer slider 140 moves forward. Then, the upper tapered surface 146b of the switching slit 146
(See FIG. 11 (c)).
2b descends and the floor slit 143 of the inner slider 139 is lowered.
At the same time as moving the outer slider 14
0 into the reproduction mode slit 145 and FIG.
The mode is switched to the reproduction mode as shown in FIG. At the time of this switching, the pair of pins 77 of the pickup elevating platform 10 remains at the lowest position of the stair slit 141. The position of the pin 22b at this time is a switching position to the insertion / removal mode in the reproduction mode.
When the 40 is retracted, the lower tapered surface 1 of the switching slit 146
When the pin 46a is pressed, the pin 22b rises and can return to the mode switching position in the insertion / removal mode as shown in FIG.

The position of the pin 22b with respect to the outer slider 140 shown in FIG. 15A is not only a mode switching position but also a CD selection position for selecting a CD to be reproduced by changing only the height of the pickup elevator 10. That is, FIG.
If only the inner slider 139 is retracted from the position (a), the pair of pins 22 b appear to advance relatively inside the floor slit 143 and are actually held at the lowermost position of the vertical slit 25. Therefore, the disk lift 22 does not move from the lowermost playback position, but the other pair of pins 77 does not move.
Although it is hidden behind the outer slider 140 and cannot be seen, it seems to rise relatively along the step slit 141 and actually rises gradually in the vertical slit 78. In other words, the inner surface of the floor slit 14
A pair of pins 22 is located at the positions of Nos. 1 to 6
When the position b is located, the pair of pins 77 is moved up and down to the heights of numbers 1 to 6 attached in the up and down direction, and the CD of that number can be reproduced. FIG. 15A shows a state in which the sixth CD can be reproduced, and FIG. 15B shows a state in which the first CD can be reproduced.

Here, since the second CD is selected as described above, as shown in FIG.
7 rises to the second position from the top. With the above operation, the CD to be reproduced is in a reproducible state, and the subsequent operations are the same regardless of the number of the selected CD.
And the transfer motor 46 is driven.

FIG. 16 in which the second CD to be reproduced is selected
The operation after the standby state of (a) will be described below. FIG.
When the pin 22b occupies the position D on the outer slider 140 shown in FIG. 16B, that is, the state shown in FIG. 16A is a standby state. At this time, the separation cam 82 is at the position shown in FIG. And the pin 22b moves to the first stage as E
When the separation cam 82 comes to the position, the separation cam 82 moves forward and as shown in FIG. 21 (a), the lower end on the back side of the separation cam 82 is inserted between the pins 2d of the tray 2 at the second and third stages from the top. Penetration (the lower end of the front side also enters the pin 2c,
Hereinafter the same operation as pins 2d), the upper fitting portion pin 22b is pin 2d of the tray 2 in the second stage from the top come to position F is slid the first separation control portions 82c ₁ in the second stage 82j, and the upper end of the separation cam 82 is
23 enters between the pins 2d of the tray 2 at the second and the second stage, and the state shown in FIG. 23 is reached. As the third stage, when the pin 22b comes to the G position, the pin 2d of the tray 2 at the first stage from the top becomes a second separation control unit 82c ₂ slides resting on the upper surface 82f of the separating cam 82. Therefore, when the pin 22b comes to the position G in the third stage, a space is formed above and below the second selection tray 2 from the top as shown in FIG.

When the sensor (not shown) detects that the pin 22b has reached the position G in FIG. 16B, the transfer motor 46 starts rotating. When the mode is switched to the regeneration mode as described above, the pair of pins 22 b enter the floor slit 143 and rotate the lever 11 of the power supply unit 17.
3 is pressed downward, so that FIG.
The lever 113 rotates counterclockwise about the pin 114 from the state of FIG.
0 rotates clockwise around the axis 109, and FIG.
As described above, the gear 112 is already engaged with the gear 103h while engaging with the gear 103h. Therefore,
The rotation of the transfer motor 46 is transmitted to the slide bar 116 having the rack 116b via the drive shaft 30 and the gear train 103, and the slide bar 116 is retracted as shown in FIG. Then, since the engagement pin 116c at the lower part on the back side of the slide bar 116 is loosely fitted in the elongated hole 13a, the holding means 14 rotates toward the front side, and the positioning pin 119 in FIG. When the position exceeds the point c, the biasing force of the toggle spring 120 acts in the opposite direction, and FIG.
As shown in FIG. 24B, the positioning pin 119 rotates to the position a, and the chuck plate 99, the upper arm 12 and the lower arm 13 together with the upper arm 12 and the lower arm 13 are selected as shown in FIG.
The turntable 97 enters. When this is shown in a plan view, the state of FIG. 30 is changed to the state of FIG. Clamping means 1
The rotation of the transfer motor 46 is stopped by a limit switch (not shown) that detects the rotation of the transfer motor 4.

As a fourth stage, the pin 22d is moved to the position shown in FIG.
When the outer slider 140 moves forward until it comes to the position H,
Since the pin 2d of the selection tray 2 descends into the middle fitting portion 82k, the selection tray 2 and the selection CD descend, and FIG.
The selected CD is placed on the turntable 97 as shown in FIG. Almost simultaneously with this, the separation cam 8 together with the outer slider 140 is provided.
2 moves forward, the regulating means 18 operates, and the upper arm 12 of the holding means 14 moves down by the action of the holding spring 89, so that the selected CD is held between the turntable 97 and the chuck plate 99. . That is, the operation of the pinching is described in detail below. When the pin 22b is at the position G and the holding means 14 occupies the standby position B, FIG.
2, the guide pin 12a is located at the horizontal portion 125a of the guide hole 125. When the holding means 14 occupies the reproduction position A, the guide pin 12a is located at the guide hole 125 as shown in FIGS. 21 (b) and 33 (a). Although the pin 127a moves to the vertical portion 125b of the 125, the pin 127a cannot escape to the escape portion of the cam groove 82r of the separation cam 82, so that the guide pin 12a is blocked by the rear side of the restraining lever 127 and cannot descend. Next, when the pin 22b moves to the H position, the separation cam 82 also advances, so that the pin 127a can escape to the escape portion of the cam groove 82r as shown in FIGS. 21 (b) and 33 (b). As a result, the pin 127a of the restraining lever 127 biased by the spring 128 moves upward toward the escape portion of the cam groove 82r of the separation cam 82, and the back side of the restraining lever 128 is lowered. For this reason, the upper arm 12 urged by the holding spring 89 as shown in FIG.
71 is pinched.

The supporting column 92 erected on the bottom plate 1e is
The center of rotation of the holding means 14 is positioned with high precision on the bottom plate 1 e by being inserted through the hollow shaft 86 which is the center of rotation of the position 4, and the positioning pin 119 is pressed by the toggle spring 120 against the pickup elevator 10. , The turntable 97 and the chuck plate 99 are positioned with high precision on the trajectory in the circumferential direction. On the other hand, since the guide support 23 for guiding the tray 2 on which the CD 171 is placed is also erected on the bottom plate 1e like the support 92, the CD 171 is also positioned on the bottom plate 1e with high accuracy. Therefore, the center of the reproduced CD, the center of the turntable 97,
The center of the chuck plate 99 matches with high precision, and the CD
171 is reliably held.

As a final fifth stage, the pin 22b is
When the outer slider 140 moves forward until the outer slider 140 reaches the position I in FIG. 21 (b), the pin 2d of the selection tray 2 descends to the lower fitting portion 82m as shown in FIG.
As shown in FIG. 26, the selection tray 2 that has been in contact with the tray 2 moves down and separates from the selected CD 171. At the same time, the receiving portion 2h of the leaf spring 2e pressing the selected CD 171 as shown in FIG. The selected CD 171 is released by being pushed up by being pushed by the lower surface of the upper fitting portion 82j. At this time, the tray 2 below the selected tray 2 is pressed by the lower surface 82h of the separation cam 82, and the tray 2 above the selected tray 2 is urged downward by the coil spring 24. The receiving tray 2 is prevented from vibrating.

As described above, the selected CD is held by the holding means 14.
After being clamped by A, the clamping means 14 is moved to A as shown in FIG.
The reproduction of the CD is performed in the state of being held at the position. First, when the spindle motor 96 rotates, the CD rotates via the turntable 97. Next, the pickup unit 16
When the scanning motor 165 rotates, the rotation is
64, the optical pickup 162 moves from the inside to the outside in the radial direction of the CD along the screw axis 164, and the reproduction of the CD is performed.

After the CD is reproduced, when the screw shaft 164 rotates in the reverse direction and the optical pickup 162 returns to the original position, the rotation of the scanning motor 165 stops, and the spindle motor 9 rotates.
The rotation of 6 also stops. Thereafter, the outer slider 140 is retracted in the reverse procedure, and the separation cam 82 is also retracted. When the pin 127a returns from the H position to the G position as shown in FIG. 21B, the pin 127a of the restraining lever 127 at the position of FIG. And moves down, and the back side of the restraint lever 127 rises. For this reason, the guide pin 12a protruding outward from the holding means 14 is pushed up along the vertical portion 125b of the guide hole 125, and the holding means 14 can be turned. Thereafter, the sensor (not shown) detects that the guide pin 12a has moved upward, and the transfer motor 4
6 rotates in the opposite direction to the above, and the holding means 14 rotates to the rear side. When the positioning pin 119 occupying the position b in FIG. 10B exceeds the position c, which is an inflection point,
When the biasing force of the toggle spring 120 acts in the opposite direction, FIG.
As shown in (a), the positioning pin 119 rotates to the position b, and the holding means 14 returns to the position B which is the standby position. The rotation of the transfer motor 46 is stopped by a limit switch (not shown) that detects the rotation of the holding means 14. Clamping means 14
Even if is located at the standby position B, it is urged to the rear side by the toggle spring 120, so that it is not affected by the vibration of both vehicles. Thereafter, when the outer slider 140 retreats and the pin 22b returns to the standby position D in FIG. 16B, the separation cam 82 also retreats, and all of the first to third trays 2 descend, and the six sheets The state returns to the state in FIG. 22 where the tray 2 is not separated.

To reproduce a CD other than the second CD from the top, the inner slider 139 is moved forward or backward from the state shown in FIG.
After relatively moving the pin 22b to any one of the positions 3, 4, 5, and 6, the outer slider 140 is slid so that the positions of D to I on the outer slider 140 in FIG. The same operation as described above can be repeated by sequentially adjusting to 22b.

Although the present embodiment has been described in connection with the case where the disc recording and / or reproducing apparatus is applied to a disc player for reproducing audio, an apparatus for recording audio or an apparatus for recording and reproducing, Alternatively, the present invention may be applied to an apparatus for recording and / or reproducing video, not limited to audio.
Further, although the case where the direction in which the trays overlap is the vertical direction is described, the direction in which the trays overlap may be horizontal. Furthermore, although the size of the disc is 12 cm, it can be applied to other sizes such as 8 cm.

Further, in this embodiment, the number of trays constituting the disk storage unit is six, but may be five or less or seven or more. Further, in the present embodiment, the trays shown in FIGS. 3A and 4 are used as the disk mounting means.
Of these, a pair of mounting pieces may be used in which the central portion is removed while leaving only the both ends on which the outer peripheral portion of the CD is mounted.

[0062]

As can be seen from the above description, claim 1
According to the disk recording and / or reproducing apparatus according to any one of (1) to (4), a space is formed on one side of the selected disk mounting means on which the selected disk is mounted among the plurality of stacked disk mounting means, and a turn is made to the space Since the selected disk is mounted by inserting the table, the disk can be mounted reliably.

According to the fifth and sixth aspects of the present invention, the recording and / or
According to the reproducing apparatus, since the pair of control means is provided, the support of the disc mounting means is stabilized.

In the disk recording and / or reproducing apparatus according to the seventh aspect, the pair of separation control sections is provided in the control means, so that the support of the disk mounting means is stabilized.

According to the disk recording and / or reproducing apparatus of the eighth to eleventh aspects, spaces are formed on both sides of the selected disk mounting means, and the turntable and the disk holding means are inserted into the respective spaces. Since the disc is sandwiched, the disc can be reliably held. Therefore, the vibration characteristics during reproduction are good, and the disk does not come off the turntable as in the related art.

According to the disk recording and / or reproducing apparatus according to the twelfth and thirteenth aspects, since the descent control unit and the spring means are provided, the movement of the selected disk onto the turntable can be achieved simply by moving the control means. Mounting and separation of the disk mounting means from the selected disk after holding the selected disk can be performed, and the operability is good.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a disc player showing an embodiment of a disc recording and / or reproducing apparatus according to the present invention.

FIG. 2 is an exploded perspective view of the disc player.

FIG. 3A is an exploded perspective view of a disc storage portion in a disc player, and FIG. 3B is a perspective view showing a main part of the tray, partially cut away.

4A is a plan view and FIG. 4B is a front view of a disc storage unit in the disc player.

FIG. 5 is a perspective view of the inside of the front side of the case as viewed from the rear side.

FIG. 6 is an exploded perspective view of a transfer unit, a turning power supply unit, and the like.

FIG. 7 is a perspective view of a reproducing unit.

FIG. 8 is a sectional view of a main part of the holding means.

FIG. 9 is a plan view of the pickup unit.

FIGS. 10A and 10B relate to a positioning unit, and FIG. 10A is a rear view when the holding unit is positioned at a standby position, and FIG. 10B is a rear view when the holding unit is positioned at a reproduction position.

11A is a front view of a pickup elevator and a disk elevator, FIG. 11B is a front view of an inner slider, and FIG. 11C is a front view of an outer slider.

FIG. 12 is an operation explanatory diagram of an operating means showing a mode switching position in an insertion / removal mode state for inserting and ejecting a CD.

FIG. 13 relates to the case of inserting and removing the second CD from the top,
(A) is an operation explanatory view of the operating means in a standby state in which the second CD is selected, and (b) is an operational explanatory view of the operation means in a state where the shutter is opened.

FIG. 14 is an explanatory diagram of the operation of the operating means in a state where the pushing lever is rotated when the second CD from the top is ejected.

FIGS. 15A and 15B are views for explaining the operation of the operating means when reproducing the sixth CD from the top, and FIG. 15B is a diagram illustrating the operation of the first CD from the top, according to the reproduction mode state for reproducing the CD. FIG. 8 is an explanatory diagram of the operation of the operation unit when reproducing.

FIG. 16 relates to the case of playing the second CD from the top,
FIG. 7A is an explanatory diagram of the operation of the operating unit when the pin is in a standby state at a D position, and FIG. 7B is an explanatory diagram of the operation of the operating unit when the pin is in a reproduction state at an I position.

FIG. 17 relates to a disc player when a CD is inserted;
(A) is a plan view, (b) is a front view.

FIG. 18 is a side sectional view of the disc player when a CD is inserted.

19A is a plan view, and FIG. 19B is a front view, relating to a pushing means at the time of discharging a CD.

FIG. 20 is a side sectional view of the pushing means at the time of discharging the CD.

FIGS. 21A and 21B are operation explanatory diagrams showing the relationship with the movement of the tray, and FIG. 21B is an operation explanatory diagram showing the relationship with the pins, relating to the operation of the separation cam.

FIG. 22 is a side view showing a state before the separation cam starts separating the tray.

FIG. 23 is a side view showing a state where the tray is separated into two by a separation cam.

FIG. 24 is a side view showing a state where the tray is separated into three by a separation cam.

FIG. 25 is a side view showing a state where only the selected tray is lowered after the tray is separated into three, and the selected CD is placed on the turntable and held by the holding means.

FIG. 26 is a side view showing a state where only the selected tray descends again after the selected CD is held by the holding means and is separated from the selected CD;

FIG. 27 is an explanatory view showing a state in which a leaf spring of a selection tray is raised during reproduction and a selected CD is opened.

28 (a) is an operation explanatory view of a state in which the rotational power is not supplied, and FIG. 28 (b) is an operational explanatory view of a state in which the rotational power is supplied.

FIG. 29 is an operation explanatory view showing a state in which rotating power is supplied to the holding means.

FIG. 30 is an operation explanatory view showing a state in which the holding means occupies the standby position.

FIG. 31 is an operation explanatory view showing a state in which the holding means occupies a reproduction position.

FIG. 32 is an operation explanatory view showing the state of the regulating means when the holding means occupies the standby position.

FIGS. 33A and 33B are operation explanatory diagrams showing a state in which the holding is inhibited, and FIG. 33B is an operation explanatory diagram showing a state in which the inhibition is released.

FIG. 34 is an operation explanatory view showing a state in which the holding means holds the CD by releasing the inhibition by the regulating means.

[Explanation of symbols]

Reference numeral 2: tray, 2e: leaf spring, 3: disk storage unit, 11
... space forming means (control means), 12 ... upper arm, 13 ...
Lower arm, 22: Disk lift, 23: Guide support,
Reference numeral 24: coil spring, 82: separation cam, 82c ₁ ... first separation control unit, 82c ₂ ... second separation control unit, 82d: third separation control unit, 82h: lower surface, 82j: upper fitting portion, 82k
··· Middle fitting part, 82m · Lower fitting part, 96 · Spindle motor, 97 · Turntable, 99 · Chuck plate, 171 · Disk

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takayuki Ishibashi 6-7-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (72) Inventor Yoshiteru Taka 6-35, Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (72) Inventor Toru Hama 6-7-35 Kita-Shinagawa, Shinagawa-ku, Tokyo F-term within Sony Corporation (reference) 5D072 AB22 BE02 BE03 BH02 BH17 EB04 EB14 EB18

Claims (13)

[Claims] 1. A plurality of disk mounting means for mounting a disk, a supporting means for stacking and supporting the disk mounting means, and a disk driving means having a turntable for mounting and rotating a selected disk. A disc recording and / or reproducing apparatus comprising: a disc loading means supported movably in the stacking direction by the support means and a biasing means biased to one side in the stacking direction; A control means for forming a space for disposing the disk drive means is movably provided on one side of the selected disk mounting means on which the selected disk is mounted, and the selected disk mounting means is provided in the control means. Recording means for recording and / or reproducing data on and / or from a disk provided with a separation control section for moving the means to the other side against the urging force of the urging means to form the space. Reproducing apparatus. 2. When there is a disc loading means on one side of the selected disc loading means, there is provided position limiting means for limiting movement of one of the disc loading means to the other side. 2. A disk recording and / or reproducing apparatus according to claim 1, wherein the space is formed between the selected disk mounting means and one of the disk mounting means by limiting the position of the disk mounting means. apparatus. 3. The disc recording and / or reproducing apparatus according to claim 2, wherein said position limiting means is formed in said control means. 4. The control device according to claim 1, wherein the position limiting unit includes:
4. The disc recording and / or reproducing apparatus according to claim 3, comprising a surface along the moving direction. 5. The disk recording and / or reproducing apparatus according to claim 1, wherein a pair of said control means are provided, and said space is formed on one side of said selected disk mounting means by movement of said pair of control means. . 6. The disk recording and / or reproducing apparatus according to claim 5, wherein said position control means is provided in each of said pair of control means.
Or a playback device. 7. The disk recording and / or reproducing apparatus according to claim 1, wherein a pair of said separation control units is provided, and said pair of separation control units moves said selected disk mounting means to the other side. 8. A plurality of disk mounting means for mounting a disk, supporting means for stacking and supporting the disk mounting means, and disk driving means having a turntable for mounting and rotating the selected disk. A disc recording and / or reproducing apparatus comprising: a disc holding means for holding a disc mounted on the turntable; wherein the disc mounting means is movably supported in the stacking direction by the support means. One side space for arranging the disk drive unit is formed on one side of the selected disk mounting unit on which the selected disk is mounted, by being configured to be urged to one side in the stacking direction by the urging unit. A control unit for forming a space on the other side for arranging the disk holding unit on the other side includes a first separation control unit,
A second separation control unit, and a separation control unit including a third separation control unit provided between these separation control units is provided.By the first separation control unit accompanying the first half movement of the control unit, Move the disk mounting means on the other side than the selected disk mounting means and the selected disk mounting means to the other side,
The second separation control unit accompanying the latter half movement moves only the disk mounting means on the other side from the selected disk mounting means to the other side, and moves the selected disk mounting means to the third separation. A recording and / or reproducing apparatus for a disc, wherein the apparatus is stored in a control unit. 9. When there is a disc loading means on one side of the selected disc loading means, the disc loading means has position limiting means for limiting movement of one disc loading means to the other side. 9. The disk recording and / or reproducing apparatus according to claim 8, wherein the space is formed between the selected disk mounting means and one of the disk mounting means by limiting the position of the disk mounting means. apparatus. 10. The disc recording and / or reproducing apparatus according to claim 9, wherein said position limiting means is provided in said control means. 11. The disk recording and / or reproducing apparatus according to claim 10, wherein said position limiting means has a surface along said moving direction in said control means. 12. A lowering control for lowering the selected disk mounting means and mounting the selected disk on a turntable arranged in the one side space, wherein the third separation control unit lowers the selected disk mounting means. 9. The recording and / or reproducing apparatus for a disk according to claim 8, comprising a unit. 13. A disk recording apparatus according to claim 8, wherein said disk mounting means is provided with a spring means for pressing the disk from the other side, and said spring means releases the pressing of said disk by said control means. And / or a playback device.