JP2005202990A - Disk holding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To control disk carrying loci without increasing the size of the device and to store a disk into the tray that is a target in a disk player having a disk storage section made by stacking a plurality of trays 2 that are arranged opposite to an inserting extracting port 4 of a disk with a prescribed separation distance. <P>SOLUTION: Disk guides 230<SB>U</SB>and 230<SB>B</SB>, which limit the axial direction position of a disk, are arranged on a sliding table 52 that has a longitudinal roller 57 and moves along the shaft direction of rollers 35 and 36 which is used to carry a CD171. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a disk holding device in a disk recording and / or reproducing apparatus that stores and / or reproduces a plurality of disks.

  As a recording and / or reproducing device for a disk mounted on a vehicle for the purpose of reproducing sound, there is a disk player. This disc player is a system in which a plurality of discs, for example, compact discs (hereinafter referred to as CDs) are stored in a magazine, and a plurality of CDs are exchanged at once in a magazine unit. For this reason, since it enlarges, a main-body part is accommodated in a trunk, On the other hand, only the part required for operation is installed in the vehicle interior. However, CD cannot be exchanged while the vehicle is running, and it is necessary to stop and open the trunk, which is troublesome.

  For this reason, in-vehicle disc players that are housed in the passenger compartment have been developed in recent years. 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 compartment. Therefore, downsizing the in-vehicle disc player is an important issue.

  As this in-vehicle disc player, as disclosed in the following Patent Document 1, for example, six CDs are individually placed in a substantially rectangular parallelepiped shape (case) called a 1DIN size or the like. Six trays (disc placement means) are stacked to form a disc storage unit. Six CDs can be individually inserted and ejected, and one of the six CDs can be selected and played back. It is configured to be able to.

  FIG. 45A shows the tray 200 disclosed in Patent Document 1, and FIG. 45B shows a disk storage unit in which six trays 200 disclosed in Patent Document 1 are stacked. In FIG. 45, reference numeral 200a denotes an aluminum plate having a predetermined width and formed in a substantially semicircular shape, and a disk conveyed by a transfer roller (not shown) at the disk insertion / removal opening is placed on the aluminum plate 200a.

In the in-vehicle disc player described in Patent Document 1 using the tray shown in FIG. 45, the distance between the transfer roller at the disc insertion / removal opening and the aluminum plate 200a of the tray 200 constituting the disc storage portion is extremely short. Immediately after being conveyed, it can be stably inserted into a tray at a desired address among a plurality of trays.
JP 2001-101762 A

  However, recently, in order to simplify the disk storage portion of FIG. 45, reduce the cost, etc., as shown in FIG. 46, the mounting area of the tray 2 has been reduced, that is, the aluminum plate 2a corresponds to the center of the disk. The apparatus which remove | eliminated and was comprised only by the predetermined width of both sides is used.

  FIG. 46 shows the appearance of an in-vehicle disc player similar to that of Patent Document 1. Reference numerals 211a and 211b are upper and lower rollers for transferring the disc 212, which are provided at the disc insertion / removal opening. Reference numeral 213 denotes a pair of slide portions provided inside the disk insertion / removal opening so as to be movable in the axial direction of the transfer rollers 211a and 211b.

  Reference numeral 214 denotes a disk storage unit in which six trays 2 each having a mounting area reduced by an aluminum plate 2a are stacked. Reference numeral 215 denotes reproduction means (optical block) for selecting and reproducing any one of the disks in the disk storage unit 214.

  FIG. 47 shows a state in which the disk 212 is inserted between the rollers 211a and 211b for insertion / removal in the apparatus shown in FIG. 46 and is stored on the second tray 2 from the top again among the stacked trays. Represents.

  As shown in FIG. 47, the aluminum plate 2a forming the mounting surface of the tray 2 does not exist in the vicinity of the rollers 211a and 211b of the disk insertion / removal opening, and is only on both sides separated by a predetermined distance. The posture of the disc 212 becomes unstable after being conveyed, and the insertion tip of the disk 212 is inclined in the axial direction (vertical direction), and cannot be stored on the second tray 2 from the target upper stage.

  There is also a problem that the inserted disk 212 collides with a disk (not shown) already stored in a tray other than the target tray.

  In order to solve such a problem, means for guiding the disk 212 is provided outside the apparatus main body, or the apparatus main body is designed to be large and means for guiding the disk 212 is provided in the main body. However, in either case, the apparatus becomes large.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a disk holding device capable of controlling a disk transport locus without enlarging the apparatus and storing the disk in a target tray. There is.

  The present invention relates to a disk holding device having a disk storage portion that is disposed at a predetermined distance from a disk insertion / removal opening and is formed by stacking a plurality of disk mounting means on which a disk is mounted. It is characterized in that a disk guide is provided on the disk storage part side of the outlet so as to be movable along the outer periphery of the disk and to regulate the axial direction of the disk.

  Also, a transfer roller disposed in parallel with the disk mounting surface of the disk mounting means is provided at the disk insertion / removal opening, and the transfer roller is provided in a space between the disk storage portion and the insertion / removal opening. A slide portion that is movable in the axial direction is provided, and the disc guide is provided on the slide portion.

(1) Since the disc guide is provided in the gap between the disc insertion / removal opening and the disc storage portion, the desired function is satisfied with the minimum area, that is, the disc placement means for controlling the disc transport trajectory and making it the target A disc can be placed on the disc.
(2) The disc guide of the present invention moves along the outer periphery of the disc and contacts only the outer periphery of the disc. For this reason, it is possible to guide without damaging the inner periphery of the disk.
(3) According to the invention described in claim 2, since the disk guide is provided in the slide portion, the function described in (1) can be satisfied by adding a component having a minimum volume. (4) For example, when it is desired to stack a plurality of disks like a disk changer, accurate positioning is possible by the disk guide of the present invention.

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the present invention is applied to a disc player that reproduces sound.
(A) Overall Configuration of Disc Player Structure As shown in FIGS. 1 to 11, the disc player is roughly divided into a case 1 that forms an external shape, and a plurality of discs that are placed on the front side of the case 1 and on which a CD is placed. In addition to being provided in the disc storage portion 3 constituted by the tray 2 (disc placement means) and the insertion / removal port 4 of the front plate 1a of the case 1, a CD is inserted into or ejected from the disc storage portion 3. The transfer means 5 having transfer rollers (rollers 35 and 36), the opening / closing means 6 provided on the front side of the transfer means 5 and opening / closing the insertion / removal port 4 of the front plate 1a, and the back side in the case 1 And reproducing means 7 for selecting and reproducing any one of the CDs in the disc storage unit 3 and provided on the left and right sides of the back side of the disc storage unit 3 and trying to eject them. Extrusion means 8 for pushing out the CD toward the transfer means 5, operation means 9 for mainly operating the disc storage portion 3 and the reproduction means 7 and the like, provided on the outside of the left and right side plates 1b, 1c of the case 1, composed of a sliding portion having a slide base 52 movable in the axial direction of the transfer roller (35, 36), provided on the sliding portion, a disc guide 230 _U, 230 _B for controlling the axial position of the CD Is done.

The reproducing means 7 is arranged on both sides of the pickup lifting / lowering platform 10 that moves up and down, and space forming means 11 for forming a space above and below the CD to be reproduced among the plurality of CDs in the disc storage unit 3. The upper arm 12 and the lower arm 13 rotatably provided on the pickup lifting / lowering base 10, and the holding means 14 for entering the space and holding the selected CD, and the lower arm 13 A CD driving means 15 (driving unit) for rotationally driving the CD that is attached to and sandwiched between the two, a pickup unit 16 that is provided on the lower arm 13 and reads information from the rotating CD, and a state for inserting and removing the CD Only when the playback mode is one of a certain insertion / removal mode and a playback mode that is a state for playing a CD, the transfer means 5 is operated. A turning force supplying means 17 for rotating to convey a force to the clamping means 14, clamping means 14 is constituted by the regulating means 18 for setting the time for holding the CD.
(B) Case First, case 1 will be described. The case 1 includes a front plate 1a, 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) Disc storage unit As shown in FIG. 3 (a), the disc storage unit 3 in this embodiment serves as a disc mounting means. In this embodiment, there are six trays 2 and a disc lifting / lowering table 22 on which six trays 2 are placed. Both ends of four guide columns 23 along the vertical direction are supported as a support means by being coupled to the bottom plate 1e and the ceiling plate 1d on the front side in the case 1.

  As shown in FIG. 4, the tray 2 has a thin aluminum plate 2a serving as a mounting surface and is configured with only a predetermined width on both sides by removing a portion corresponding to the center so that only the outer peripheral portion of the CD is placed. The thin aluminum plate 2a is formed by adhering the resin 2b to the upper surfaces on both sides. A pair of pins 2c and 2d projecting sideways are formed on the middle part and the back side of each resin 2b. The front side is long and the back side is short. The height of the resin 2b is set to be approximately the same as the thickness of the CD, and a plate spring 2e (holding means for holding the disc) for sandwiching the CD between the resin 2b and the aluminum plate 2a on the upper surface of the resin 2b. The front side of is fixed.

  A holding portion 2f for holding the CD is formed on the inner side of the back side of the leaf spring 2e, while a receiving portion 2g that is pressed downward by a lower surface of a separation cam 82, which will be described later, is formed on the outer side of the rear side. A receiving portion 2h that receives an upward force is formed by an edge portion 82x on the lower surface of the upper insertion portion 82j. Guide holes 2i for inserting the guide columns 23 are formed through the resin 2b and the aluminum plate 2a on the front side and the back side of each resin 2b.

  A cushioning material (not shown) is attached along the circular arc to the portion where the vicinity of the outer peripheral surface of the CD contacts both surfaces of the aluminum plate 2a. Cylindrical shapes for receiving coil springs 24 as urging means provided between the ceiling plate 1d and the uppermost tray 2 at both ends of the resin 2b in the uppermost tray 2 as shown in FIG. The spring receiver 2j is integrally formed. As shown in FIG. 3B, the lower end of the spring receiver 2j slightly protrudes inward to form a receiving portion 2k, and the lower end of the coil spring 24 is received by the receiving portion 2k. It ’s like that. This is provided in order to prevent the load required for compression from becoming too large even when the compression length is increased by using a long spring.

  On the other hand, the disk lift 22 is formed in a shape in which the left and right ends are bent upward. A guide hole 22a for inserting the guide column 23 is formed in the horizontal part, and a pair of pins 22b for raising and lowering the disk lifting platform 22 are protruded in the horizontal direction outside the left and right vertical parts. It is fixed. The pair of pins 22 b are inserted through two vertical slits 25 formed in the side plates 1 b and 1 c of the case 1 and project outside the case 1.

The disk lifting platform 22 and the six trays 2 are supported so as to be movable up and down by inserting guide columns 23 through the guide holes 22a and 2i. The upper and lower ends of the four spring guides 26 are fixed to the ceiling plate 1d and the bottom plate 1e of the case 1, and each spring guide 26 is inserted into the spring receiver 2j. And the lower end of the coil spring 24 as 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 is provided on the front plate 1 a of the case 1. An insertion / removal port 4 is formed in the front plate 1a. A drive shaft 30 and a driven shaft 31 are rotatably supported by the insertion / removal port 4. Both ends of the drive shaft 30 are rotatably attached to the front plate 1a. Both ends of the driven shaft 31 are inserted into a long hole 32 formed in the side surface of the front plate 1a so as to be long in the vertical direction.

  In order to support the intermediate portion of the drive shaft 30 and the driven shaft 31, the small-diameter portion of the intermediate portion of the drive shaft 30 rotates in the groove 33a on the back side of the resin bearing 33 in which the downward movement is restricted as shown in FIG. On the other hand, the small diameter portion of the intermediate portion of the driven shaft 31 is rotatably fitted to the groove 34a on the back side of the resin bearing 34 that can be raised and lowered via a pair of guide protrusions and a pair of guide grooves (not shown). Yes.

  A pair of rollers 35 (transfer roller) made of resin is attached to the driven shaft 31, and a pair of rollers 36 (transfer roller) made of rubber is attached to the drive shaft 30. The slide toward the heart is constrained. 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 circumferential groove portion. Both ends of the spring 38 are engaged.

  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, a gear 41, and mutually integrated gears 42 and 43 are rotatably supported inside the right side plate 1c. ing. On the bottom plate 1e, a worm 44 meshing with the gear 43 and a gear 45 are integrally supported so as to be freely rotatable, and a worm 47 fixed to the output shaft of the transfer motor 46 attached to the bottom plate 1e meshes with the gear 45. Yes.

  A pushing means 48 is provided as shown in FIGS. 2 and 5 in order to automatically carry out the operation of pushing the CD by several millimeters after the insertion of the CD by the rollers 35 and 36 is completed. Three pairs of long hole-shaped guide holes 49, 50, 51 are formed in the horizontal direction above and below the insertion / removal port 4 in the front plate 1a.

  A pair of slide bases 52 (slide portions) are provided on the left and right sides of the front plate 1a, and three guide pins 53, 54, 55 fixed to the slide base 52 are provided in the guide holes 49, 50, 51. It is inserted so that it cannot be extracted.

  A resin vertical roller 57 is rotatably supported on the back side of each slide table 52 via a vertical shaft 56. In order to urge the pair of slide bases 52 toward each other, a push spring 60 is provided between a spring hook portion 58 formed on the front plate 1 a and a spring hook portion 59 formed on the slide base 52. It has been.

  The CD at the height position where the vertical roller 57 is arranged is positioned in the horizontal direction by the vertical roller 57. The positioning of the CD below and above the vertical roller 57 is erected on the bottom plate 1e as shown in FIG. The positioning rods 61 and 62 and a pair of positioning rods (not shown) attached so as to be suspended from the ceiling plate 1d (arranged on the extension lines of the positioning rods 61 and 62 and inserted into and removed from the positioning rods 61 and 62). A space through which the CD passes is formed).

A pair of slide bases 52 is configured, for example, as shown in FIG. 36, and the slide bases 52 control the trajectory during insertion / removal of the CD to change the posture of the CD as shown in FIGS. Disc guides 230 _U and 230 _B for stabilization are provided.

  As shown in FIG. 36, the slide base 52 includes an upper back plate 52aa to which the guide pins 53 and 54 are fixed, a substantially triangular upper surface plate 52b extending perpendicularly from the upper back plate 52aa, A side plate 52c hanging from the upper surface plate 52b, a lower surface plate 52d extending to the upper surface plate 52b at a right angle from the side surface plate 52c, and the guide pin 55 are fixedly attached, and are suspended from the lower surface plate 52d. And a lower back plate 52ab.

The disk guides 230 _U and 230 _B have a predetermined thickness, are formed in a substantially triangular shape according to the shape of the upper surface plate 52 _b of the slide base 52, and are made of, for example, polyacetal resin. Further, the surface in contact with the CD is formed as a flat surface.

The upper disk guide 230 _U is fixed to the upper surface plate 52 _b of the slide table 52 by the fixing pins 231, and the lower disk guide 230 _B is fixed to the lower surface plate 52 d of the slide table 52 by the fixing pins 231.

The gap between the disk guides 230 _U and 230 _B is opposed to the gap between the rollers 35 and 36, and is formed at an interval slightly thicker than the thickness of the CD.

As a result, the disk guides 230 _U and 230 _B slide in the axial direction of the rollers 35 and 36 together with the pair of slide bases 52 and vertical slides 57 that slide when the CD is inserted / removed. Restrict movement in the direction (vertical direction).

Further, by providing the disk guides 230 _U and 230 _B on the pair of slide bases 52, it is not necessary to secure another space for the disk guide, and the size of the apparatus can be suppressed. This exerts a great effect in an apparatus that is miniaturized by bringing the disk transport roller and the disk storage unit close to the limit.

The disk guides 230 _U and 230 _B are not limited to be fixed by the fixing pins 231, but may be fixed to the slide table 52 by other methods, for example, adhesion. May be provided only.

FIG. 39 shows another example of the shape of the disk guides 230 _U and 230 _B.
(E) Opening / closing means The opening / closing means 6 for opening / closing the insertion / removal port 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. When the shutter 64 is raised, the intermediate height position of the opening 64a occupies the boundary position between the rollers 35 and 36 and becomes "open". When is lowered, it becomes “closed”.

  That is, a pair of guide pins 65 are provided up and down on the left and right of the front plate 1a, while a pair of guide holes 64b that are long in the vertical direction are formed in the shutter 64, and the guide pins 65 inserted through the guide holes 64b. A retaining ring is fitted to the tip of the.

  The pair of guide pins 54 near the center is more than the other guide pins 53 and 55 so that the distance between the pair of slide bases 52 can be increased only when the shutter 64 is raised and opened. The shutter 64 is formed with an L-shaped guide hole 64c which is set to be long and allows the guide pin 54 to be inserted therethrough.

  On the upper surface of the guide hole 64c, the interval between the pair of vertical rollers 57 is increased for some reason, and when the CD is forcibly ejected, the shutter 64 is forcibly raised to be “open”. Therefore, a guide rail portion 64d is formed.

  Next, a link mechanism for opening and closing the shutter 64 will be described. A guide hole 66a that is long in the left-right direction is formed on the front and lower surfaces of the left and right slide plates 66 having a substantially L-shaped cross section, and a guide pin 67 inserted into the guide hole 66a is fixed to the front plate 1a and the bottom plate 1e. ing.

  Cam holes 64e are formed in the lower portions on both sides of the shutter 64, while slide pins 66b are fixed to both front ends of the left and right slide plates 66, and the slide pins 66b are inserted into the cam holes 64e. As shown in FIG. 17B, spring hooks 66c and 68 projecting downward are formed on the lower surface of the left and right slide plates 66 and the lower surface of the bottom surface 1e, and a return spring 69 is hung between them.

  A front / rear slide plate 70 is provided on the lower left surface of the bottom plate 1e so as to be slidable in the front / rear direction. 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 through the guide hole 70a is fixed to the bottom plate 1e.

As shown in FIG. 5, the bent portion of the substantially L-shaped lever 72 is rotatably attached to the lower surface of the bottom plate 1 e via a fixed shaft 73, and elongated holes 72 a and 72 a are formed at the tip of the lever 72. . The pins 66d and 70b fixed to the left and right slide plates 66 and the front and rear slide plates 70 are loosely fitted in the long holes 72a and 72a. The front and rear slide plate 70 is formed with a pressed portion 70c that is pressed by an outer slider 140 described later.
(F) Reproducing means The reproducing means 7 is arranged close to the back of the disc storage portion 3 in order to make the depth dimension of the disc player as small as possible. Since the holding means 14 in the reproducing means 7 is mounted on the pickup lifting / lowering base 10 as shown in FIG. 2, the pickup lifting / lowering base 10 will be described first.

The pickup lift 10 is formed by integrally forming a horizontal plate and vertical plates on both sides thereof, and an arc-shaped notch 10a is formed on the front side of the horizontal plate so that a CD can enter. 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 are shorter than the pair of pins 22b of the disk lifting platform 22. 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 project outside the case 1.
(F-1) Space forming means (release means, separation means)
As shown in FIG. 2, on the inner side of the vertical plates on both sides of the pickup lift 10, space forming means 11 for forming spaces above and below the CD to be reproduced by inserting it between the trays 2 that overlap in the vertical direction. As a release means and a separation means, a separation cam 82 made of resin is provided slidable in the front-rear direction.

  That is, a guide hole 10a is formed in the upper part of the front side of the vertical plate in the pickup elevator 10 and a headed guide pin 82a inserted through the guide hole 10a is fixed to the separation cam 82, as shown in FIG. A guide hole 82b is formed in the lower part of 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 configured not only as the space forming means 11 but also as a releasing means and a separating means of the present invention as will be described later.

  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 so that the tray 2 is stably supported and the space above and below the tray 2 on which the CD to be played is placed. Is formed.

  The separation cam 82 is shaped like a slit formed on two plates having different lengths in the front-rear direction, and by sliding the separation cam 82 to both sides of the tray 2, the front side is The pair of long pins 2c of the tray 2 is moved up, and the rear side is configured to move up the pair of short pins 2d.

That is, it is configured as follows. First separation control portions 82c ₁ of the pair, 82c ₁ is formed a selected tray 2 and which from above the tray 2 Place selected CD in order to upward, above the first separation control portions 82c ₁ of the respective Are formed with second separation control portions 82c ₂ and 82c ₂ for moving only the tray 2 above the selected tray 2 upward.

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, 82d are formed respectively. An upper surface 82f that holds the positions of the pins 2c and 2d of the tray 2 above the selection 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 selection tray 2 A lower surface 82h serving as a position control means for pressing down is formed along the moving direction of the separation cam 82.

Since the selection tray 2 and the pins 2c and 2d of the tray 2 above the selection tray 2 are pushed up by the advancement of the first and second separation control units 82c ₁ and 82c ₂ , they are originally constant values such as θ = 45 °, for example. Set to However, here, the tray 2 rises while compressing the coil spring 24, and the higher the position of the tray 2, the greater the amount of compression of the coil spring 24 and the greater the load applied when pushing up the tray 2. In other words, the load is small at the initial stage of compression of the coil spring 24. Therefore, as shown in FIG. 21 (a), the upper part of the first and second separation control units 82c ₁ and 82c ₂ is, for example, θ ₁ = 45 °, while the lower part is, for example, θ ₂ = 60 °, The intermediate portion is formed by an arcuate surface 82t.

  Next, the third separation control units 82d and 82d will be described. The third separation control units 82d and 82d are composed of upper insertion portions 82j and 82j, middle insertion portions 82k and 82k, and lower insertion portions 82m and 82m (separating means). The upper insertion portions 82j and 82j are for forming a space above and below the selection tray 2, and the middle insertion portions 82k and 82k lower both the selection tray 2 and the selection CD and place them on the turntable 97 of the lower arm 13. The lower insertion portions 82m and 82m are for lowering only the selected tray 2 again to separate the selected tray 2 from the selected CD.

Further, as will be described later, an edge 82x (release means) that pushes up the receiving portion 2h of the plate spring 2e of the selection tray 2 as the separation cam 82 advances is provided on the lower surface of the upper insertion portion 82j.
(F-2) Holding means The holding means 14 that holds the selected CD by rotating it toward the space above and below the selected CD formed by the space forming means 11 will be described. A base end portion of the lower arm 13 and the upper arm 12 is rotatably attached to the left side of the pickup elevator 10. That is, it is as follows.

  As shown in FIG. 8, the lower arm 13 is fixed to the lower arm 13 in the vicinity of the lower end of the hollow shaft 86. The lower end of the hollow shaft 86 passes through the pickup lifting / lowering base 10 so as to be rotatable. A flat washer 93 and a retaining ring 94 are attached to the shaft. A sleeve 87 made of a copper alloy is penetrated and fixed to the base end portion of the upper arm 12, and the hollow shaft 86 is inserted into the sleeve 87 so that the upper arm 12 is parallel to the lower arm 13. The selected CD is clamped by descending.

  A flat washer 88 is inserted into the upper end of the hollow shaft 86 and a retaining ring is attached. A clamping spring 89 for biasing the upper arm 12 downward is provided between the flat washer 88 and the sleeve 87. Yes.

Further, as shown in FIG. 7, a slide erected on the lower arm 13 so that the lower arm 13 and the upper arm 12 rotate synchronously without rotating relatively around the hollow shaft 86. A moving pin 90 is slidably inserted into a hole 91 formed in the upper arm 12. In order to increase the positioning accuracy of a turntable 97 (described later) on the lower arm 13 and the CD when the holding means 14 is rotated, a support column erected on the bottom plate 1e is placed in the hollow shaft 86 on the pickup lift 10. 92 is inserted.
(F-3) Disk Drive Unit A disk drive unit 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 central hole of the CD. On the other hand, as shown in FIG. 34, one end of a support plate 98 is fixed near the tip of the upper arm 12, and a circular hole is formed at the other end.

A chuck plate 99 formed of resin and having a bowl-shaped convex portion formed along the circle on the lower surface of the disk is rotatably fitted into the hole from above. The chuck plate 99 is prevented from coming off by the other end of a spring plate (not shown) having one end fixed to the lower surface of the upper arm 12.
(F-4) Pickup Unit The pickup unit 16 is also mounted on the upper surface of the lower arm 13 as shown in FIG. The configuration of the pickup unit 16 will be described below. An optical pickup 162 is movably provided along the length direction of the lower arm 13 through a guide rail 161 formed integrally with the lower arm 13. A means for reciprocating the optical pickup 162 along the guide rail 161 is provided.

  A screw shaft 164 is rotatably supported on the upper surface of the lower arm 13 via a pair of bearing members 163, and a female screw portion (not shown) of the optical pickup 162 is screwed to the screw shaft 164. An output shaft of a scanning motor 165 fixed in the vicinity of the sleeve 87 is interlocked with 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 output shaft worm 169 meshes with the worm wheel 166, while the screw gear 170 attached to the screw shaft 164 is the screw gear 167. Are engaged.
(F-5) Turning power supply means The structure of the turning power supply means 17 for rotating the clamping 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 is composed of 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, a guide hole 105a that is long in the vertical direction is formed in the upper part of the plate 105, and a guide pin 106 (see FIG. 28) inserted through the guide hole 105a is fixed to the left side plate 1b. Is attached.

  Spring hanging portions 105b and 107 are formed on the lower portion of the plate 105 and the bottom plate 1e of the case 1, and a return spring 108 for biasing the plate 105 downward is provided therebetween.

  The plate 105 is formed with an escape hole 105c through which the shaft 109 (fixed to the side plate 1b) of the gear 103h is inserted, and the base end portion of the 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 a gear 112 that meshes with the gear 103h is rotatably attached to the moving shaft 111.

  A cam hole 105d is formed above the escape hole 105c in the plate 105, and the penetrating end of the moving shaft 111 is inserted into the cam hole 105d. In other words, when the plate 105 is moved up, the cam hole 105d is moved up, and the moving shaft 111 inserted through the cam hole 105d moves to the front side. Therefore, the gear 112 attached to the moving shaft 111 is moved to the drive shaft. 30 gears 104 are also meshed.

  In order to move the plate 105 upward, an intermediate portion of the lever 113 is rotatably supported inside the left side plate 1 b via a pin 114, and one end of the lever 113 is pivotally supported via a pin 115. Is coupled to the bottom of the.

  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 through which the pin 22b of the disk lift 22 is inserted. That is, when the disk lift 22 comes to the lowest 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 103a of the gear train 103 and the lower arm 13 of the clamping means 14 are interlocked and connected as follows. As shown in FIG. 2, a slide bar 116 is provided that includes a vertical portion that is long in the front-rear direction and a horizontal portion that is integrally formed on the back side of the vertical portion.

  A pair of guide holes 116a is formed in the vicinity of both ends of the vertical portion of the slide bar 116, and a pair of guide pins 117 inserted into the pair of guide holes 116a as shown in FIG. 5 is fixed inside the left side plate 1b. A retaining ring is attached. In this way, the rack 116b is formed at the lower part on the front side of the slide bar 116 which is slidable in the front-rear direction and meshes with the gear 103a, while the engaging pin 116c protrudes downward at the tip of the horizontal part on the rear side. The upper end of is fixed.

  As shown in FIG. 7, the engaging pin 116 c is formed integrally with the base end portion of the lower arm 13 and is loosely fitted into a long hole 13 a in a horizontal portion extending to the height of the upper arm 12. As shown in FIG. 9, the long hole 13 a is formed so as to extend along a radial straight line that passes through the axis of the sleeve 87 and is perpendicular to the sleeve 87.

  The disc player has two operation states, an insertion / removal mode state in which a CD is inserted into and ejected from the disc storage portion 3, and a reproduction mode state in which the CD is played back. 14 occupies the B position as shown in FIG. 30, and the latter occupies the A position as shown in FIG.

  The clamping means 14 is rotated between the B position and the A position via the rotating power supply means 17 as described above. However, since it is necessary to position the selected CD and the turntable 97 on the lower arm 13 with high accuracy, the positioning means 118 shown in FIG. 10 is provided.

  The structure of the positioning means 118 will be described below. As shown in FIGS. 9 and 10, the upper end of a positioning pin 119 protruding downward is fixed to the vicinity of the hollow shaft 86 in the lower arm 13. On the other hand, a circular arc hole 10c is formed in the pickup lifting / lowering table 10 corresponding to the range in which the positioning pin 119 moves when the clamping means 14 rotates, and the positioning pin 119 is loosely fitted in the circular arc hole 10c.

A spring hooking portion 10 d is formed on the pickup lift 10 so as to protrude downward, and both ends of the toggle spring 120 are hung between the spring hooking portion 10 d and the positioning pin 119. Assuming that the position occupied by the positioning pin 119 when the clamping means 14 occupies the B and A positions is the b and a positions, the c position, which is the intermediate point between b and a, is the inflection point where the direction of movement of the positioning pin 119 changes. The spring hooking portion 10d is disposed at a position corresponding to the c position.
(F-6) Restricting means The upper arm 12 of the clamping means 14 is urged downward by the clamping spring 89, and the time when the upper arm is lowered by the urging force of the clamping spring 89 is set as shown in FIG. Restricting means 18 is provided for this purpose. That is, it is configured as follows.

  A cylindrical plate 124 is erected on the upper surface of the pickup lift 10 between the clamping means 14 and the separation cam 82. The cylindrical plate 124 forms a partial cylinder which is a part of a cylinder centering on the sleeve 87. As shown in FIGS. 32 and 33, the cylindrical plate 124 has a horizontal portion 125a which is long in the circumferential direction and is long in the axial direction. An L-shaped guide hole 125 formed with the vertical portion 125b is formed.

  On the other hand, a guide pin 12 a that protrudes outward in the radial direction around the sleeve 87 is fixed to the base end portion of the upper arm 12, and the guide pin 12 a is inserted into the guide hole 125.

  For this reason, since the guide pin 12a is positioned at the horizontal portion 125a of the guide hole 125 from when the holding means 14 occupies the B position of the standby position in FIG. Even if the urging force of the spring 89 is applied, the upper arm 12 does not descend and the clamping means 14 is kept open. On the other hand, when the clamping means 14 is in the A position, the guide pin 12a is positioned at the vertical portion 125b. Therefore, the upper arm 12 is lowered by the urging force of the clamping spring 89, and the guide pin 12a is also lowered to the lower end of the vertical portion 125b.

  Even if the clamping means 14 is rotated to the position A in FIG. 7 and the guide pin 12a is rotated to the vertical portion 125b of the guide hole 125, the clamping means 14 does not immediately perform the clamping operation, and the clamping operation is not performed until a command is given. In order to do so, the first restricting means for temporarily restricting the downward movement of the guide pin 12a, and after the restriction, the separation cam 82 moves forward, the selected CD and the selected tray 2 descend, and the top of the turntable 97 The second restricting means for releasing the restriction and sandwiching the selected CD when it is placed on is provided. That is, it is configured as follows.

  As shown in FIGS. 7 and 30, a bearing plate 126 is erected in parallel with the separation cam 82 on the upper surface of the pickup lift 10 and between the cylindrical plate 124 and the separation cam 82. As shown in FIG. 7, an intermediate portion of the restraining lever 127 is supported on the inner side of the bearing plate 126 through a pivot shaft 129, and a pin 127 a that protrudes outward from the front side of the restraining lever 127. Is fixed, and the back side is bent inward to face the vertical portion 125b of the guide hole 125.

As shown in FIG. 30, a spring 128 is provided to urge the back side of the restraining lever 127 downward. On the other hand, the pin 127a on the front surface side of the restraining lever 127 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. When the separation cam 82 moves to the front side and the pins 2c and 2d of the selection tray 2 enter the intermediate insertion portions 82k and 82k, the pin 127a is provided. Is set so that the restraining lever 127 is rotated by the spring 128 and the upper arm 12 is lowered by the urging force of the holding spring 89.
(G) Extruding means The pushing means 8 are provided on the left and right inside the case 1. Since these are substantially the same structure, only one will be described. As shown in FIGS. 1 and 19, an extrusion lever 132 for pushing out a CD by rotating is attached to a fixed shaft 133 that protrudes downward from the ceiling plate 1 d of the case 1. The height of the extrusion lever 132 is set to be the same as the height between the rollers 35 and 36.

  Then, both ends of a return spring 134 provided so as to surround the fixed shaft 133 are hung on a spring hook portion 132a formed on the push lever 132 and a spring hook portion formed on the ceiling plate 1d.

  On the other hand, the push-out lever 132 is configured to rotate by moving to the back side, which is the opposite direction to the action of forming the space by moving to the front side of the separation cam 82 described so far. That is, it is as follows.

As shown in FIG. 7, a plate 135 is provided outside the bearing plate 126 so as to be slidable by a predetermined amount in the front-rear direction. That is, a pair of guide holes 126 a are formed in the bearing plate 126, while the guide pins 135 a inserted through the respective guide holes 126 a are fixed to the plate 135. The front side end of the plate 135 is bent inward so as to be able to engage with the pressed portion 132b integral with the push lever 132, and the back side end is bent outwardly toward the back of the separation cam 82. It protrudes.
(H) Operation means Finally, the operation means 9 will be described. In the insertion / removal mode, the operation means 9 raises / lowers the disk lift 22 to enable insertion / removal of the CD on the tray 2 of each stage, and further opens the opening / closing means 6 or operates the pushing means 8. In the reproduction mode, the CD elevator to be reproduced is selected by raising and lowering the pickup elevator 10 with the disk elevator 22 held at the lowest position, and the space forming means 11 and the restricting means 18 are operated. .

  2 and 11, an inner slider 139 and an outer slider 140 are provided outside the left and right side plates 1b and 1c of the case 1 so as to be slidable in the front-rear direction. Since it is bilaterally symmetrical, one side will be described. Guide holes 139a and 140a are formed above and below the inner and outer sliders 139 and 140, and guide pins 158 and 159 fixed to the side plate are inserted into both the guide holes 139a and 140a. A retaining ring is attached.

  On the back side of the inner slider 139, a pair of staircase slits 141 are formed for raising and lowering the pair of pins 77 of the pickup lifting platform 10 protruding from the vertical slit 78 in six stages. On the front side of the inner slider 139, a pair of staircase slits 142 for raising and lowering the pair of pins 22b of the disk lifting platform 22 protruding from the vertical slits 25 in six stages is formed and below each staircase slit 142 In the reproduction mode, a floor slit 143 is formed continuously for holding the disk lift 22 at the lowest position and lifting only the pickup lift 10.

  On the other hand, the outer slider 140 is formed with only slits into which the pair of pins 22b of the disk lifting platform 22 which are long pins enter. That is, a pair of quadrilateral insertion / removal mode slits 144 for moving the pair of pins 22b in the staircase slit 142 to move up and down, and a horizontal line shape for entering the floor surface slit 143 and holding it at the lowest position. The pair of playback mode slits 145 and the pair of step slits 142 and the floor surface slit 143 are moved by moving the pin 22b up or down by the taper surfaces 146a and 146b by sliding the outer slider 140 in either direction. A switching slit 146 inclined at 45 ° is formed in communication with each other so as to exchange the positions of the pair of pins 22b.

  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 into these are different from each other.

  The upper part on the back side of the outer slider 140 is bent at a right angle toward the inside to form a protrusion 140b. A relief notch 139b and a relief 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 regardless of the height position of the separation cam 82 that moves up and down together with the pickup lift 10, the 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 into the engaging groove 82s. Further, an engaging portion 140c is formed on the front surface side of the left outer slider 140 by bending downward from the bottom plate 1e of the case 1.

  The engaging portion 140 c presses the pressed portion 70 c to the back side when the outer slider 140 slides to the back side, and opens the shutter 64 regardless of the urging force of the return spring 69.

  Next, a drive mechanism for simultaneously sliding the right and left sliders of the inner slider 139 and the outer slider 140 will be described. As shown in FIGS. 2 and 6, two connecting shafts 148 and 149 are rotatably supported via two pairs of bearings below the bottom plate 1e of the case 1 and on the back side.

  Pinions 150 and 151 are fixed to both ends of the respective connecting shafts 148 and 149, and these pinions 150 and 151 mesh with racks 139 c and 140 d formed at the lower part on the back side of the inner slider 139 and the outer slider 140. . Gears 152 and 153 are fixed to the connecting shafts 148 and 149, and operation motors 154 and 155 are individually linked and connected to the gears 152 and 153. That is, it is as follows.

  Operating motors 155 and 154 are attached to the upper and lower positions inside the bearing plate 126 arranged on the right side of the back side in the case 1, and the output shafts of these motors 155 and 154 are provided inside the bearing plate 126. In addition, the gears 152 and 153 are linked to each other via two sets of speed reduction means 156 and 157.

  The holding means of the present invention in the above embodiment is configured by the leaf spring 2e and the pressing portion 2f, and the releasing means and the separating means are configured by the separation cam 82.

Next, the operation of such a disc player will be described.
(I) Overall structure of the operation The operation of the disc player is to insert a CD into the disc storage unit 3 and to eject the CD from the disc storage unit 3 and to select one of a plurality of CDs stocked in the disc storage unit 3. This is composed of three actions, namely, CD playback to select and play back.
(J) Inserting a CD When inserting a CD into the disc storage unit 3, the number assigned to the tray 2 (numbered from 1 to 6 from the top to the bottom) is selected and not shown. After pressing a number button “2”, for example, 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 the pair of inner sliders 139 slides, and the rotation of the output shaft of the operation motor 155 is transmitted to the speed reduction means 157 and the connection shaft 149. The movement of the outer slider 140 is independently performed.

  When the pair of pins 22b enters the pair of insertion / removal mode slits 144 of the outer slider 140 and 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. As the inner slider 139 moves backward, as shown in FIG. 13A, the pair of pins 22b rises from the bottom of the step slit 142 to the second, and the disk lift 22 also rises and the second tray from the top. 2 is set to the height of the push lever 132.

  At this time, the pickup lift 10 is also raised at the same time, but this is an unnecessary movement. If the inner slider 139 is further retracted, the pickup lift 10 is lifted together with the pins 22b, and the third to sixth trays 2 are sequentially raised to the height of the push lever 132.

  Next, when the outer slider 140 is retracted from the standby position in FIG. 13A until the pin 22b comes to the intermediate position in the front-rear direction of the insertion / removal mode slit 144, the engaging portion 140c of the outer slider 140 is moved to the bottom plate 1e. In order to press the pressed portion 70c shown in FIG. 2 to the back side, the movement of the front / rear slide plate 70 is transmitted to the left / right slide plate 66 via the lever 72 and resists the biasing force of the return spring 69. 66 moves to the left, the shutter 64 rises, and the insertion / removal port 4 is opened as shown in FIG.

 The shutter 64 is opened by the above operation, and the second tray 2 from the top is already at the same height as the push lever 132 as described above. Therefore, the upper and lower rollers 35, 36 are moved as shown in FIG. When an attempt is made to insert the CD 171 between them, a sensor (not shown) arranged at the front center of the shutter 64 detects the CD 171 and the transfer motor 46 starts to rotate.

  Since the rotational force of the transfer motor 46 is transmitted to the roller 36 via a gear, the CD 171 is caught between the roller 35 and the roller 35 biased by the spring 38 as shown in FIG. The CD is inserted on the second tray 2 from the top by the rotation, but the CD 171 is inserted only to the state where it is separated from the rollers 35 and 36, so the remaining several mm is urged toward the center by the push spring 60. Are pushed by a pair of vertical rollers 57.

FIG. 40 shows a state in which the CD 171 is inserted and the distance between the pair of vertical rollers 57 starts to be increased. The CD 171 is restricted from moving in the vertical direction by the disk guides 230 _U and 230 _B. Therefore, it is inserted in a stable posture.

41 and 42 show the movement of the CD after FIG. 40 (note that FIG. 41 and FIG. 42 are diagrams when the CD is inserted into the uppermost tray), which can also be seen from these drawings. Thus, since the disc guides 230 _U and 230 _B are in contact with only the outer peripheral portion of the CD 171, they can be guided without scratching the inner peripheral portion of the CD.

Therefore, when the disk guides 230 _U and 230 _{B of} the present invention are not provided, the CD is inclined as shown in FIG. 43 and cannot be inserted onto the second tray 2 from the top, but the disk guides 230 _U and 230 _B are not. If it exists, it can be reliably inserted into the second tray 2 from the top as shown in FIG.

  The CD 171 is held on the tray 2 by the pressing portions 2f of the pair of leaf springs 2e on the tray 2. When the CD 171 is separated 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 in FIG. The pressed portion 70 c that has been pressed toward the front is released, and the shutter 64 is closed by the action of the return spring 69.

Even when the pair of pins 22b occupy other height positions (first to third from the bottom) of the staircase slit 142, the CD can be inserted by the same operation as described above.
(K) Ejecting the CD When ejecting the CD from the disk storage unit 3, for example, the number button “2” and the eject button are pressed. Then, as in the insertion, for example, the pin 22b moves from the switching position in the insertion / removal mode in FIG. 12 to the standby position in FIG. 13 (a), and the CD on the second tray 2 from the top reaches the height of the push lever 132. Is set. Similarly to the above, when the outer slider 140 moves backward until the pin 22b comes to the position of 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, when the outer slider 140 is further retracted until the pin 22b comes to the front side of the insertion mode slit 144, the rear side of the outer slider 140 is projected through the protruding portion 140b as shown in FIG. The separation cam 82 interlocked with the outer slider 140 moves backward, and the rear surface of the separation cam 82 pushes the rear side of the plate 135 to move backward.

  Then, the front side of the plate 135 pushes the pressed portion 132b of the push lever 132 to the back side, and the push lever 132 rotates to push both sides of the second CD 171 from the top. At the same time when the eject button is pressed, the transfer motor 46 is rotated and the rollers 35 and 36 are already rotating. Therefore, the extruded CD 171 is sandwiched between the rollers 35 and 36 as shown in FIG. In order to prevent the CD 171 from falling due to the ejection, a limit switch (not shown) detects this when a part of the back side of the CD 171 is sandwiched between the rollers 35 and 36, and the rotation of the transfer motor 46 stops. . Thereafter, the CD 171 is manually extracted from between the pair of rollers 35 and 36.

When the CD is ejected, the movement of the CD 171 in the vertical direction is restricted by the disk guides 230 _U and 230 _B as in the insertion.

  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 shown in FIG. 14 to the standby position shown in FIG.

  Then, the rearward force applied to the plate 135 from the separation cam 82 is removed, so that the push 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. Then, the shutter 64 is closed in the same manner as after the CD is inserted.

  Even when 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 ejected by the same operation as described above.

(L) Playing a CD To play a CD, a number button labeled with the number of the CD to be played, for example, a “2” button and a play button are pressed. Then, as the inner slider 139 moves forward from the state of FIG. 13A, the pin 22b descends to the lowest position of the insertion / removal mode slit 144 as shown in FIG. The outer slider 140 moves forward.

  Then, when the upper taper surface 146b (see FIG. 11C) of the switching slit 146 is pressed, the pin 22b descends and moves to the floor surface slit 143 of the inner slider 139, and at the same time, the pin 22b moves to the outer slider 140. Is moved into the reproduction mode slit 145 to switch to the reproduction mode as shown in FIG. At the time of this switching, the pair of pins 77 of the pickup lifting / lowering base 10 remains at the lowest position of the staircase slit 141.

  The position of the pin 22b at this time is a switching position to the insertion / removal mode in the reproduction mode, and when the outer slider 140 is retracted from this state, the lower taper surface 146a of the switching slit 146 is pressed to raise the pin 22b. As shown in FIG. 12, the mode can be returned to the mode switching position in the insertion / removal mode.

  The position of the pin 22b shown in FIG. 15A with respect to the outer slider 140 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 lift 10.

  That is, if only the inner slider 139 is retracted from the position shown in FIG. 15A, the pair of pins 22b appear to move relatively forward in the floor surface slit 143, and actually the bottom of the vertical slit 25. The disk lift 22 is not moved from the lowest reproduction position because it is held in the position, but the other pair of pins 77 are hidden by the outer slider 140 but cannot be seen, but relatively rise along the step slit 141. It looks like this and actually rises stepwise in the vertical slit 78.

  That is, when the pair of pins 22b is positioned at the positions of numbers 1-6 assigned to the position of the floor slit 143 by retreating the inner slider 139, the pair of pins 77 is assigned the numbers 1 to 2 attached in the vertical direction. Ascending and descending to a height of 6, the CD with that number can be played. FIG. 15A shows a state in which the 6th CD can be reproduced, and FIG. 15B shows a state in which the 1st CD can be reproduced.

  Here, since the second CD is selected as described above, the pair of pins 77 ascend to the second position from the top as shown in FIG. With the above operation, the CD to be reproduced is ready to be reproduced, and the subsequent operations are the same regardless of the number of CDs selected, and operate by the movement of the outer slider 140 and the driving of the transfer motor 46.

The operation after the standby state in FIG. 16A in which the second CD to be reproduced is selected will be described below. When the pin 22b occupies the D position on the outer slider 140 of FIG. 16B, that is, the state of FIG. 16A is a standby state, and at this time, the separation cam 82 is at the position of FIG. When the pin 22b comes to the E position as the first step, the separation cam 82 moves forward and the pins 2d of the tray 2 in the second and third steps from the top as shown in FIG. The lower end on the back side of the separation cam 82 enters between (the lower end on the front side also enters the pin 2c, and the same action as that of the pin 2d follows), and then the pin 22b is moved to the F position as the second stage. come and pins 2d of the tray 2 in the second stage from the top slides the first separation control portions 82c ₁ resting on the upper fitting portion 82j, 1 stage from the top the upper tip of the separating cam 82 and 2 2 between the pins 2d of the tray 2 and the step 2 Becomes a state, the next pin 22b comes to position G as the third stage, the pin 2d of the tray 2 of the first row from the top slides a second separation control unit 82c ₂ to the upper surface 82f of the separating cam 82 Appear. For this reason, when the pin 22b comes to the G position 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 G position in FIG. 16B, the transfer motor 46 starts to rotate. Since the pair of pins 22b enter the floor surface slit 143 and push the lever 113 of the rotating power supply means 17 downward when the mode is switched to the reproduction mode as described above, FIG. From this state, the lever 113 rotates counterclockwise about the pin 114, the plate 105 rises, and the lever 110 rotates clockwise about the shaft 109. As shown in FIG. Is already in mesh with the gear 104 while meshing with the gear 103h.

  Accordingly, the rotation of the transfer motor 46 is transmitted to the slide bar 116 having the rack 116b through the drive shaft 30 and the gear train 103, and the slide bar 116 moves backward as shown in FIG. Then, since the engaging pin 116c on the lower back side of the slide bar 116 is loosely fitted in the long hole 13a, the clamping means 14 rotates toward the front side, and the positioning pin 119 in FIG. When the point c is exceeded, the biasing force of the toggle spring 120 acts in the opposite direction, and the positioning pin 119 rotates to the position a as shown in FIG. 10B, and attempts to reproduce as shown in FIG. The chuck plate 99 and the turntable 97 enter the upper and lower sides of the CD 2 together with the upper arm 12 and the lower arm 13.

  When this is shown in a plan view, the state shown in FIG. 30 is changed to the state shown in FIG. The rotation of the transfer motor 46 is stopped by a limit switch (not shown) that detects the rotation of the clamping means 14.

  As the fourth stage, when the outer slider 140 moves forward until the pin 22d reaches the position H in FIG. 16B, the pin 2d of the selection tray 2 descends into the middle insertion portion 82k. And the selected CD is placed on the turntable 97 as shown in FIG.

  At the same time, when the separation cam 82 moves forward together with the outer slider 140, the regulating means 18 operates, and the upper arm 12 of the clamping means 14 moves down by the action of the clamping spring 89, and the CD to be reproduced turns. It is sandwiched between the table 97 and the chuck plate 99.

  That is, the operation of clamping is described in detail as follows. When the pin 22b is at the position G and the holding means 14 occupies the standby position B, the guide pin 12a is located at the horizontal portion 125a of the guide hole 125 and the holding means 14 occupies the reproduction position A as shown in FIG. As shown in FIGS. 21B and 33A, the guide pin 12a moves to the vertical portion 125b of the guide hole 125, but the pin 127a cannot escape to the relief portion of the cam groove 82r of the separation cam 82. On the other hand, the guide pin 12a is blocked by the back side of the restraining lever 127 and cannot be lowered.

  Next, when the pin 22b moves to the H position, the separation cam 82 also moves forward, so that the pin 127a can escape to the relief portion of the cam groove 82r as shown in FIGS. 21 (b) and 33 (b). Thus, the pin 127a of the restraining lever 127 biased by the spring 128 moves upward toward the relief portion of the cam groove 82r of the separating cam 82, and the back side of the restraining lever 128 is lowered. For this reason, as shown in FIG. 34, the upper arm 12 that has been urged by the clamping spring 89 descends, and the selection CD 171 is clamped as described above.

  By inserting the support column 92 erected on the bottom plate 1 e through the hollow shaft 86 that is the rotation center of the gripping means 14, the rotation center of the clamping means 14 is positioned with high accuracy on the bottom plate 1 e and positioned by the toggle spring 120. Since the pin 119 is held in a state where it is pressed against the pickup lifting / lowering base 10, the turntable 97 and the chuck plate 99 are positioned with high accuracy on the path in the circumferential direction.

  On the other hand, since the guide column 23 for guiding the tray 2 on which the CD 171 is placed is also erected on the bottom plate 1e like the column 92, the CD 171 is also positioned on the bottom plate 1e with high accuracy. Therefore, the center of the CD to be reproduced, the center of the turntable 97, and the center of the chuck plate 99 coincide with each other with high accuracy, and the CD 171 is securely held.

  As the final fifth stage, when the outer slider 140 moves forward until the pin 22b reaches the I position in FIG. 16B, the pin 2d of the selection tray 2 descends to the lower insertion portion 82m as shown in FIG. The selection tray 2 that has been in contact with the selected CD 171 is lowered as shown in FIG. 26 and separated from the selected CD 171. At the same time, the receiving portion 2h of the leaf spring 2e holding the selected CD 171 is separated as shown in FIG. The selected CD 171 is released by being pushed up and pushed up by the edge portion 82x on the lower surface of the upper insertion portion 82j on the back surface side of 82. FIGS. 35A and 35B show only the main part at this time.

  At this time, the tray 2 below the selection tray 2 is pressed by the lower surface 82h of the separation cam 82, and the tray 2 above the selection tray 2 is urged downward by the coil spring 24. This prevents the tray 2 from vibrating.

  After the selected CD is sandwiched by the sandwiching means 14 in this way, the CD is played with the sandwiching means 14 held at the A position as shown in FIG. First, when the spindle motor 96 rotates, the CD rotates via the turntable 97.

  Next, when the scanning motor 165 of the pickup unit 16 rotates, the rotation is transmitted to the screw shaft 164, and the optical pickup 162 moves along the screw shaft 164 from the inner side to the outer side in the radial direction of the CD. Done.

  As described above, the CD can be easily reproduced without any trouble at the same position where the selected CD 171 is held on the selected tray 2. Therefore, unlike the conventional method of FIG. 36, it is not necessary to shift the CD in the plane direction from the holding position during reproduction, so that the size of the apparatus can be reduced and the size can be reduced.

  After the CD is reproduced, when the screw shaft 164 rotates reversely and the optical pickup 162 returns to the original position, the scanning motor 165 stops rotating and the spindle motor 96 also stops rotating. Thereafter, the outer slider 140 is retracted and the separation cam 82 is also retracted in the reverse procedure.

  When the pin 127a returns from the H position to the G position as shown in FIG. 21 (b), the pin 127a of the restraining lever 127 at the position shown in FIG. 33 (b) is separated as shown in FIG. 33 (a). And the lower side of the restraining lever 127 is raised. For this reason, the guide pin 12a which protrudes outward from the clamping means 14 is pushed up along the vertical part 125b of the guide hole 125, and the clamping means 14 can be rotated.

  Thereafter, a sensor (not shown) detects that the guide pin 12a has moved upward, the transfer motor 46 rotates in the opposite direction, and the clamping means 14 rotates to the back side. When the positioning pin 119 occupying the position b in FIG. 10B exceeds the position c, which is the inflection point, the urging force of the toggle spring 120 acts in the opposite direction, and positioning is performed as shown in FIG. The pin 119 rotates to the b position, and the clamping means 14 returns to the B position 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 clamping means 14. Even if the clamping means 14 is located at the standby position B, it is biased toward the back side by the toggle spring 120, so that it is not affected by the vibration of the vehicle.

  Thereafter, when the outer slider 140 moves backward and the pin 22b returns to the standby position D in FIG. 16B, the separation cam 82 also moves backward, and all of the first to third trays 2 are lowered, and the six sheets Returning to the state of FIG. 22 in which the tray 2 is not divided.

  When playing a CD other than the second CD from the top, the inner slider 139 is moved forward or backward from the state of FIG. 16A, and 1, 3, 4, 5, attached to the inner slider 139 in the drawing. After the pin 22b is relatively moved to any one of the positions 6, the outer slider 140 is slid so that the positions D to I on the outer slider 140 in FIG. The same operation as described above can be repeated.

  It should be noted that the lowermost position of the insertion / removal mode slit 144 can be increased by forming the switching slit 146 longer, and when the pin 22b reaches the position of FIG. Can be kept in position. For this reason, the CD insertion / removal opening 4 can be formed higher.

  In this embodiment, the disk recording and / or reproducing apparatus is applied to a disk player for reproducing audio. However, the apparatus for recording audio, the apparatus for recording and reproducing, or the audio is used. The present invention is not limited to this and may be applied to an apparatus for recording and / or reproducing video. Further, although the case where the direction in which the trays overlap is shown as the vertical direction, the direction in which the trays overlap can be set to the horizontal direction. Furthermore, although the disc size is 12 cm, it can be applied to other sizes such as 8 cm.

  Furthermore, in the present embodiment, the number of trays constituting the disk storage unit is six, but it may be five or less or seven or more.

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. The exploded perspective view of a disc player. (A) is a disassembled perspective view of the disc storage part in a disc player, (b) is a perspective view which partially cuts and shows the principal part of a tray. FIG. 4A is a plan view of a disc storage unit in a disc player, and FIG. The perspective view which looked at the inside of the front side of a case from the back side. The disassembled perspective view of a transfer means, a rotational power supply means, etc. The perspective view of a reproduction | regeneration means. The principal part sectional drawing of a clamping means. The top view of a pickup unit. (A) is a rear view when the clamping means is positioned at the standby position, and (b) is a rear view when it is positioned at the reproduction position. (A) is a front view of a pickup elevator and a disk elevator, (b) is a front view of an inner slider, and (c) is a front view of an outer slider. Explanatory drawing of operation | movement of the operation means which is the insertion / removal mode state for performing insertion and ejection of CD, and shows a mode switching position. In connection with the insertion / removal of the second CD from the top, (a) is an explanatory diagram of the operation means in the standby state in which the second CD is selected, and (b) is the operation of the operation means in the state where the shutter is opened. Illustration. Explanatory drawing of operation | movement of the operation means in the state which the extrusion lever rotated in the case of discharging | emitting 2nd CD from the top. In relation to the playback mode state for playing a CD, (a) is a diagram for explaining the operation of the operating means when playing the sixth CD from the top, and (b) is the case when playing the first CD from the top. Action | operation explanatory drawing of an operation means. When playing the second CD from the top, (a) is a diagram for explaining the operation of the operating means when the pin is in the standby state at the D position, and (b) is when the pin is in the reproducing state at the I position. Action | operation explanatory drawing of an operation means. FIG. 3A is a plan view of a disc player when a CD is inserted, and FIG. Side surface sectional drawing of the disc player at the time of CD insertion. It is related with the extrusion means at the time of CD discharge, (a) is a top view, (b) is a front view. Side surface sectional drawing of the extrusion means at the time of CD discharge. FIG. 5A is an operation explanatory diagram showing the relationship with the movement of the tray, and FIG. 5B is an operation explanatory diagram showing the relationship with the pins. The side view which shows the state before a separation cam starts separation of a tray. The side view which shows the state by which the tray was isolate | separated into two with the separation cam. The side view which shows the state by which the tray was isolate | separated into three by the separation cam. FIG. 6 is a side view showing a state in which only the selected tray is lowered after the tray is separated into three, and the selected CD is placed on the turntable and sandwiched by the sandwiching means. FIG. 6 is a side view showing a state in which only the selected tray is lowered again and separated from the selected CD after the selected CD is clamped by the clamping means. Explanatory drawing which shows the state by which the leaf | plate spring of the selection tray went up at the time of reproduction | regeneration, and selection CD was released. (A) is an operation explanatory diagram in a state where the rotational power is not supplied, and (b) is an operation explanatory diagram in a state in which it is supplied. Action | operation explanatory drawing which shows the state in which rotational force is supplied to the clamping means. Action | operation explanatory drawing which shows the state which a clamping means occupies a standby position. Explanatory drawing which shows the state in which the clamping means occupies the reproduction position. Action | operation explanatory drawing which shows the state of a control means when a clamping means occupies a standby position. (A) is an operation explanatory view showing a state where the holding is prevented, and (b) is an operation explanatory view showing a state where the prevention is released. Action | operation explanatory drawing which shows the state in which the clamping means clamped CD by cancellation | release of the prevention by a control means. FIG. 6 is a main part explanatory view of a state in which the release means and the separation means of the present invention release the holding of the CD at the same position as the holding position of the CD and separate the tray from the CD. The principal part of one Embodiment of this invention is represented, (a) is a right view, (b) is a top plan view, (c) is a rear view, (d) is a bottom plan view, (e) is a principal part. Plan view, (f) is a left side view. The principal part perspective view of one embodiment of the present invention. The principal part external view in the apparatus of the example of 1 embodiment of this invention. The principal part of this invention is represented, (a) is a front view, (b) is a top view, (c) is a side view. The perspective view showing the example of an embodiment of the present invention and showing the state of disk insertion initial stage. The perspective view showing one embodiment of the present invention and showing a state in the middle of disk insertion. The perspective view showing the example of an embodiment of the present invention and showing the state just before the end of the disc insertion. Explanatory drawing showing the problem at the time of the disc insertion of the apparatus without the conventional disc guide. Explanatory drawing showing the mode at the time of the disc insertion in the embodiment of this invention. FIG. 5A is a plan view and FIG. 5B is a front view of a disc storage unit in a conventional disc player. The appearance of a conventional disc player is shown, (a) is a side view, (b) is a plan view, and (c) is a front view. The appearance of a conventional disc player is shown, (a) is a side view, (b) is a plan view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Case, 2 ... Tray, 2a ... Aluminum plate, 2e ... Leaf spring (holding means), 2f ... Pressing part, 3 ... Disc storage part, 5 ... Transfer means, 6 ... Opening / closing means, 7 ... Reproduction means, 8 ... Extruding means, 9 ... operating means, 11 ... space forming means (release means, separating means), 14 ... clamping means, 15 ... CD driving means, 16 ... pick-up unit, 17 ... rotating power supply means, 18 ... regulating means, 22 ... disk lifting platform, 22b ... pin, 35, 36 ... roller, 52 ... slide table, 57 ... vertical roller, 82 ... separation cam (release means, separation means), 82c ₁ ... first separation control unit, 82c ₂ ... first Two separation control units, 82d ... third separation control unit, 82h ... lower surface, 82j ... upper insertion portion, 82k ... intermediate insertion portion, 82m ... lower insertion portion, 82x ... edge, 139 ... inner slider, 140 ... outer slider, 141, 142 ... Stairs Lit, 146 ... switching slit, 230 _U, 230 _B ... disk guide.

Claims (2)

In a disk holding device having a disk storage portion that is disposed at a predetermined distance opposite to a disk insertion / removal port and is formed by stacking a plurality of disk mounting means on which a disk is mounted.
A disk holding device comprising a disk guide disposed on the disk storage portion side of the disk insertion / removal opening so as to be movable along the outer periphery of the disk and restricting the axial direction of the disk. The disk insertion / removal port is provided with a transfer roller disposed in parallel with the disk mounting surface of the disk mounting means, and a space between the disk storage portion and the insertion / removal port is provided with the transfer roller. The disk holding device according to claim 1, wherein a slide part movable in an axial direction is provided, and the disk guide is provided on the slide part.