JP2865490B2 - Compact disc player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact disc player, and more particularly to a compact disc player which can be reduced in size, size, and weight.

[0002]

2. Description of the Related Art In recent years, compact disc players (hereinafter referred to as CD players) have been disclosed in, for example,
As disclosed in JP-206951, a plurality of compact disks (hereinafter, referred to as CDs) are mounted on a chassis.
There is a type in which a magazine loaded with is loaded, and a CD selected from the magazine is loaded into a player body so that it can be reproduced.

[0003] From a magazine for storing a plurality of disks, one
The loading device for selecting one CD and loading the selected CD into the player main body includes an elevator mechanism for positioning the selected CD at a predetermined height with respect to the player main body, and a CD having the height.
And a slide mechanism for moving the player from the magazine to the player body.

Each CD is individually mounted on a disk mounting plate, and a slide mechanism horizontally moves the disk mounting plate so that a disk receiving portion of the CD is opposed to a spindle table of a player main body and a lower side thereof. Position between clamper. Then, the clamper is raised and the disc receiving portion of the CD is sandwiched between the spindle table and the clamper, so that the CD is lifted from the disc mounting plate, and the CD can be rotated without contacting the disc mounting plate. .

[0005] As a method of moving the CD and disk mounting plates horizontally, a method of linearly moving the disk mounting plate in a direction parallel to the edge of the disk mounting plate, and a method of disposing the disk mounting plate as disclosed in the above-mentioned publication. There is a method of turning around one corner, but in any case, the C stored in the magazine
D is horizontally moved a distance greater than or equal to its diameter so as to be loaded into the player body.

[0006]

For this reason, in this type of conventional CD player, it is necessary to set the dimension of the CD in the moving direction at least twice as large as the diameter of the CD. It is disadvantageous in trying to make it.

In particular, in the method in which the disk mounting plate is pivoted around one corner as described in the above-mentioned publication, the moving space of the disk mounting plate is further increased, and the size, the size and the weight are reduced. Then it becomes more disadvantageous.

The present invention has been made in view of the above circumstances, and has as its object to provide a compact, compact, and lightweight compact disc player.

[0009]

SUMMARY OF THE INVENTION A compact disc player according to the present invention comprises a chassis having an opening on one side of a front surface, a spindle table disposed on the other side of the chassis, a clamper opposed thereto, and A player body having a pickup unit disposed above the disk storage space, a disk mounting plate on which disks are mounted one by one, and a plurality of disk mounting plates built therein so that they can be individually pulled out and mounted outside the disk. A magazine which is inserted into and removed from the chassis through the opening so that a periphery thereof is close to a spindle table in the player body and a clamper opposed thereto, a selected disk, and the player body An elevator mechanism for performing vertical alignment with a spindle table and a clamper opposed thereto, and One drawer disk mounting plate which is placed a disk, sets the receiving portion of the disk between said spindle table and the opposing clamper to the player body, said disc also placed during the rotation of the disk
A slide mechanism that keeps the plate pulled out, and the disk mounting plate is spatially separated from the disk remaining in the magazine side of the disk moved into the player body and waiting in the magazine. It is characterized in that it has a notch corresponding to the crossing portion and not connected to the disc clamping hole.

[0010]

According to the present invention, since the magazine is inserted and removed at a position where the outer peripheral edge of the disc loaded in the magazine is close to the spindle table of the player body and the clamper opposed thereto, the disc loaded in the magazine is inserted. Can be positioned between the spindle table of the player body and the clamper facing the same by moving a distance slightly larger than the radius plus the radius of the disc receiving portion. The moving distance of the disk is reduced to about the width of the signal recording section. The recessed portion not connected to the above-mentioned hole for the disk clamp can prevent the part of the playing disk remaining on the magazine side from contacting with another disk mounting plate in the magazine, and can reduce the strength of the disk mounting plate. It is possible to reduce the thickness of the player while maintaining the size of the player, and to reduce the size of the player by avoiding an increase in the size of the magazine. Alternatively, the number of disks that can be loaded in the same volume of the magazine can be increased.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A CD player according to an embodiment of the present invention will be described in detail with reference to the drawings.

(Schematic Configuration) As shown in the front view of FIG. 1, the chassis 1 is formed in a box shape having an opening on the left half of the front, and a player main body 2 is incorporated in the right side of the chassis 1. Also, chassis 1
A magazine 5 capable of storing a plurality of (in this case, up to six in this case) disk mounting plates 4 on which CDs 3 are mounted at appropriate intervals vertically is inserted and removed from the front side.

When the magazine 5 is pushed to the loading position as described later, the magazine 5 is locked at the loading position by a lock mechanism 6 shown in the plan view of FIG.
By pressing an eject button 1h on a panel 1g provided around the device, the lock is released and ejected forward.

The CD player is provided with a loading device 7 for selecting a specified CD 3 from a loaded magazine 5 and a disc mounting plate 4 for supporting the specified CD 3 and loading the selected disc 3 on the player main body 2.

The loading device 7 is used to select a selected CD.
FIG. 3 is a diagram for providing an elevator mechanism 8 for adjusting the height of the disc mounting plate 4 and the player main body 2 to the height, and for horizontally moving the CD 3 and the disc mounting plate 4 whose heights have been adjusted to the player main body 2. 3 and a slide mechanism 9 shown in FIG.

The loading device 7 also functions as an unloading mechanism for storing the CD 3 and the disc mounting plate 4 in the magazine 5 from the player main body 2 by reversing the operation of the slide mechanism 9.

The elevator mechanism 8 is configured to raise and lower the magazine 5 or to raise and lower the player main body 2, or to raise and lower both the magazine 5 and the player main body 2. Is also good. However, in this embodiment, since the number of CDs 3 stored in the magazine 5 is large, the elevator mechanism 8 is configured to raise and lower the player main body 2 so that the height of the entire CD player is reduced.

(Player Body) As shown in the vertical sectional front view of FIG. 2 and the plan view of FIG. 3, the player body 2 is supported by the chassis 1 via the elevator mechanism 8 so as to be able to move up and down.
A carriage 22 fixed to the upper surface of the frame 21; and a clamp support plate 23 swingably supported below the frame 21.

A spindle motor 24 is fixed to the left side of the carriage 22, and a spindle table 25 which is driven to rotate by the spindle motor 24 is disposed below the spindle motor 24. Is provided with a pickup unit 26 which is slidably supported by the pickup unit 26.

A clamper 27 is rotatably supported at the left end of the clamp support plate 23 so as to face the spindle table 25, and a spring 27a is supported at the right end of the frame 21.
Thereby, the clamper 27 is pressed against the spindle table 25. Also, during loading operation, unloading operation and non-loading operation of the CD 3, the spring 2
An unclamping mechanism 28 shown in FIG. 8 is provided in order to separate the clamper 27 from the spindle table 25 by a predetermined interval against the clamp 7a.

Further, guides 29 for guiding insertion / removal of a pair of disc mounting plates 4 which are upper and lower pairs are provided at the front and rear inside the player main body 2, respectively.

(Locking Mechanism) An inner bottom plate 11 shown in FIG. 4 is provided on the bottom half of the chassis 1 which is slightly stronger than the left side. A locking mechanism 6 for locking the magazine 5 at the loading position is attached to the inner bottom plate 11. .

The lock mechanism 6 is supported on the lower surface of the inner bottom plate 11 so as to be able to move forward and backward, and has a rear end projecting above the inner bottom plate 11 so as to receive the rear surface of the magazine 5.
and a return spring 6b for urging the cam plate 6a forward.
A lock plate 6c slidably supported in the left-right direction at the rear of the lower surface of the inner bottom plate 11, and a pin projecting from the upper surface of the lock plate 6c and abutting on a cam 6d formed on the right end edge of the cam plate 6a. 6e and a lock 6f protruding from the upper surface of the lock plate 6c onto the upper surface of the inner bottom plate 11.
And a pressing spring 6 for urging the lock plate 6c to the left.
g.

As shown in the cross-sectional plan view of FIG. 5 (a), the rear end of the bottom surface of the magazine 5 corresponds to the locking device 6f from the position corresponding to the unlock position of the locking device 6f. Is formed with an L-shaped concave groove 5a.

When the magazine 5 is removed from the chassis 1, the lock 6f is pushed by the cam 6d as shown by a solid line in FIG. 4 to be positioned at the unlock position, and the magazine 5 is moved from the opening 1f. When pushed in,
First, when the locking tool 6f is fitted into the vertical side portion 5b of the concave groove 5a of the magazine 5 and the magazine 5 is completely pushed in, the cam plate 6a is formed on the rear surface of the magazine 5 as shown by a two-dot chain line in FIG. Is pushed backward by a certain amount or more, and the lock 6f is pulled by the pressing spring 6g and moves leftward, and is located at the lock position in the lateral side portion 5c of the concave groove 5a. Also,
The advance of the cam plate 6a is limited by the magazine 5 locked by the pin 6e and the lock 6f. The position of the lock 6f at the lock position is detected by the microswitch 6h fixed to the lower surface of the inner bottom plate 11.

The lock mechanism 6 is unlocked as follows by operating the elevator mechanism 8 by pressing the eject button 1h shown in FIG.

That is, when the eject button 1h is pressed, the elevator mechanism 8 shown in FIG. 6 operates and the rear slide plate 81a of the elevator mechanism 8 moves to the right stroke end. The slide plate 81a is provided with an engagement portion 81c protruding forward, and when the slide plate 81a moves to the right stroke end, the engagement portion 81c is formed.
4c moves the lock plate 6c rightward from the lock position shown by the two-dot chain line in FIG. 4 to the lock release position shown by the solid line in FIG. 4, and the lock member 6f locks in the lateral groove 5c in the concave groove 5a. It moves into the vertical side part 5b from the position, and the lock is released.

When the lock is released, the magazine 5 and the cam plate 6a are urged forward by the return spring 6b, and the magazine 5 is ejected from inside the chassis 1.
Also, by moving the cam plate 6a forward,
The pin 6e and the lock plate 6c are locked at the unlocked position by the cam 6d.

(Elevator Mechanism) As shown in the plan view of FIG.
A pair of slide plates 81a and 81b slidably supported on the front and rear walls 1a and 1b of the chassis 1 in the left-right direction, and a pair of slide plates 81a. A swinging beam 82 engaged with 81b;
And a driving device 83 for driving the rear slide plate 81a.

As shown in the front view of FIG. 7, a pair of right and left step-up grooves 84a is formed on the rear slide plate 81a. The pair of pins 2a protrude from the rear surface of the frame 21. Through the groove 84a and a pair of left and right vertical grooves 1d formed in the rear wall 1b of the chassis 1, so that when the rear slide plate 81a slides, the rear portion of the player main body 2 is raised and lowered stepwise. I am trying to.

As shown in FIG. 1, the front slide plate 81b is formed with a single step-up groove 84b which rises to the left, and a single pin 2 projecting from the front surface of the frame 21.
b is inserted through the groove 84b and one vertical groove 1e formed in the front wall 1a of the chassis 1. Further, the front slide plate 81b is interlocked with the rear slide plate 81a via the swinging beam 82, and slides in the opposite direction to the rear slide plate 81a, so that the front part of the player main body 2 is moved to the rear part. It is designed to be moved up and down step by step in synchronization with.

As shown in FIGS. 4 and 6, the rear slide plate 81a is formed with six concave portions 81d corresponding to the height of each CD 3 and the eject position, as shown in FIG. As described above, the positioning lever 84, which is supported on the bottom wall 1c of the chassis 1 so as to be able to swing horizontally, is urged by the spring 85 so as to selectively protrude into these recessed portions 81d, thereby allowing the rear slide plate 81a to move to the respective positions. It can be positioned and locked at seven positions corresponding to the height of the CD 3 and six positions corresponding to the eject position.

As shown in FIG. 6, a photo interrupter 86 is fixed to the upper part of the chassis 1, and a mark plate 87 for blocking the optical path of the photo interrupter 86 is extended to the rear slide plate 81a. Cuts 87a are formed in the mark plate 87 at predetermined intervals in the left-right direction. The light of the photo interrupter 86 passes through the cuts 87a, so that the movement positions of the slide plates 81a and 81b and the movement of the player body 2 are reduced. The height is detected, and the driving device 83 is stopped at a position where the optical path of the photointerrupter 86 passes through the cut 87a corresponding to the selected CD3 or eject position.

In FIG. 6, both slide plates 81a and 81b and the swing beam 8 located at the eject position are shown.
2 is indicated by a solid line, the oscillating beam 82 located at a position corresponding to the lowest order CD 3 is indicated by a dashed line,
Both slide plates 81a and 8 located at positions corresponding to D3
1b and the oscillating beam 82 are shown by two-dot chain lines.

(Slide Mechanism) As shown in the plan view of FIG. 8, the slide mechanism 9 includes a slide beam 91 supported on the rear surface of the player body 2 so as to be slidable in the left-right direction, and a right end of the slide beam 91. An engaging member 92 supported by the section and protruding forward from the slide beam 91, and a driving device 93 mounted on the rear portion of the player main body 2 to reciprocally drive the slide beam 91 as shown in FIG. I have.

The slide beam 91 and the engaging member 92
When the CD 3 is returned from the player main body 2 to the magazine 5 loaded in the chassis 1, the CD 3 is returned to the home position indicated by the one-dot chain line in FIG.

The magazine 5 is shown in FIGS.
As shown in the vertical front view of (b), the right ends of the right side and the rear side are open, and the right rear is diagonally cut away. As shown in the plan views of FIGS. 4, 5, 8 and 9 (a), the disc mounting plate 4 has an engaging portion 4a corresponding to the engaging member 92 of the slide mechanism 9 in the right rear portion. When the disc mounting plate 4 is loaded in the magazine 5, the engaging portion 4a
It protrudes into the notch on the right rear of the.

When the magazine 5 is loaded with the slide beam 91 and the engaging member 92 at the home position,
The engaging portion 4a of any one of the disk mounting plates 4 is
It is located at the height where it meshes. When the player body 2 and the slide mechanism 9 are positioned at a height corresponding to the designated CD 3, the engaging portion 4a of the disc mounting plate 4 on which the designated CD 3 is mounted is positioned at a height at which the engaging portion 4a engages with the engaging member 92. Then, by subsequently operating the driving device 93, the slide beam 91 and the engaging member 92 move rightward, and the disk mounting plate 4 is pulled out of the magazine 5.

As shown by a two-dot chain line in FIG. 3 or FIG. 8, a disc mounting the designated CD3 until the disc receiving portion 3a of the CD3 is positioned between the spindle table 25 and the clamper 27 of the player main body 2. When the placing plate 4 moves, the right end of the slide beam 91 is moved to the player body 2.
Rotate the rotor 28a of the unclamping mechanism 28 clockwise, release the operation of the unclamping mechanism 28, and urge the clamper 27 upward with the spring 27a.
CD3 between the spindle table 25 and the clamper 27
Of the disk receiving portion 3a.

Thus, the CD 3 slightly floats from the disk mounting plate 4 and can be rotated by the spindle motor 24 without contacting the disk mounting plate 4. This state is detected by turning on the micro switch 95 provided on the upper part of the player main body 2 by the unclamping mechanism 28.

What is important here is that the magazine 5 is loaded at a position where the outer peripheral edge of the CD 3 loaded in the magazine 5 is close to the spindle table 25 of the player main body 2 and the clamper 27 opposed thereto. It is.

As a result, the CD 3 is moved between the spindle table 25 of the player main body 2 and the clamper 27 facing the spindle table 25 by moving a distance slightly larger than the radius plus the radius of the disc receiving portion 3a. Will do.

When the driving device 93 is operated in the reverse direction, the slide beam 91 and the engaging member 92 move to the left, and the unclamping mechanism 28 is operated to drive the spindle table 2.
The clamper 27 is separated from the disk 5, the CD 3 is lowered onto the disk mounting plate 4, and the disk mounting plate 4 is moved to the left to return the disk 3 to the magazine 5.

The return of the slide beam 91 and the engagement member 92 to the left stroke end is detected by another micro switch provided at the lower portion of the player main body 2.

(Disc Mounting Plate) The disc mounting plate 4 on which the selected CD 3 is mounted is moved to the player main body 2, and the CD 3 is moved to the spindle table 25.
When the disk 3 is sandwiched between the disk mounting plate 4 and the clamper 27, the CD 3 approaches the disk mounting plate 4 above the selected disk mounting plate 4, so that the vertical distance between the disk mounting plates 4 is reduced. There is no problem when the vertical spacing of the disc mounting plate 4 is set large, but the vertical spacing of the disc mounting plate 4 is set small in order to reduce the height of the magazine 5 and the CD player to reduce the size. In this case, the designated CD 3 may come into contact with the upper disk mounting plate 4.

In this embodiment, as shown in the plan view of FIGS. 8 and 9A or the sectional view of FIG. 9B, the CD 3 moved to the player main body 2 on the right side of the disc mounting plate 4.
The specified CD 3 comes into contact with the upper disk mounting plate 4 even though the vertical spacing of the disk mounting plate 4 is set small by making the portion corresponding to Has been prevented.

FIG. 5 shows the topmost CD3.
As shown in (b), the lower surface of the top wall 5d of the magazine 5 is formed into a semicircular thin portion 5e corresponding to the CD 3 moved to the player body 2 on the right side, and the top wall 5d of the magazine 5 is formed.
d does not hinder the rotation of the CD 3 moved to the player body 2.

9 (a) and 9 (b), in order to prevent the CD 3 mounted on the lower disk mounting plate 4 in the magazine 5 from jumping from the disk mounting plate 4.
As shown in FIG. 2, pads 4b made of an elastic material are provided on the bottom surface of each disk mounting plate 4 so as to be in sliding contact with the upper surface of the CD 3 mounted on the lower disk mounting plate 4 in the magazine 5.

(Operation) In the initial state, the unclamping mechanism 28 of the player main body 2 is used.
Operates, and the clamper 27 is isolated from the spindle table 25 for a certain period. The elevator mechanism 8 positions the player main body 2 at the lowest position, and the slide beam 91 and the engaging member 92 of the slider mechanism 9 are positioned at the home position.

Each of the plurality of CDs 3 is placed on the disk
When the magazine 5 stored in the rack 1 is inserted into the chassis 1 through the opening 1f on the front surface of the chassis 1 and locked at the loading position by the lock device 6, the loading device 7 is operated by designating the CD 3 to be reproduced. First, the elevator mechanism 8
The player body 2 is moved to a height corresponding to the specified CD 3 by the
The disc mounting plate 4 on which the disc 3 is placed is pulled out of the magazine 5 and moved to the player main body 2.

Here, the CD 3 and the disc mounting plate 4 are moved from a predetermined position in the magazine 5 by a distance slightly larger than the radius of the CD 3 plus the radius of the disc receiving portion 3a, thereby moving the player body 2 The disk receiving portion 3a of the CD 3 moves between the spindle table 25 and the clamper 27.

When the disk receiving portion 3a of the CD 3 moves to a position between the spindle table 25 and the clamper 27, the operation of the unclamping mechanism 28 is released, the clamper 27 rises toward the spindle table 25, and the spindle table 25 and the clamper 27 move. 27, the disk receiving portion 3a of the CD 3 is sandwiched. As a result, the CD 3 floats up from the disk mounting plate 4 and can rotate without contacting the disk mounting plate 4.

Thereafter, when the slide mechanism 9 is operated in the reverse direction, the unclamping mechanism 28 is operated and the clamper 27 is operated.
Is separated from the spindle table 25 for a certain period, and CD3
Is put down on the disk mounting plate 4. And this CD3
The disk mounting plate 4 is returned to a predetermined position in the magazine 5 by moving a distance slightly larger than the radius of the CD 3 plus the radius of the disk receiving portion 3a from that position in the player main body 2 to the disk mounting plate 4. It is.

When the eject button 1h is pressed, the player body 2 is moved to the height corresponding to the lowest CD 3 by the elevator mechanism 8, and the rear slide plate 81a is further moved rightward to activate the lock mechanism 6. And return spring 6b
Urges the cam plate 6a forward to eject the magazine 5 forward.

As described above, in this CD player, C
When loading and unloading D3 onto and from the player main body 2, the CD3 is moved only a distance slightly larger than its radius plus the radius of the disc receiving portion 3a. Compared with the conventional example of moving, the dimension can be reduced to about the same as the radial width of the signal recording portion of the CD3, and the size, compactness, and weight can be reduced.

Further, since the CD 3 and the disk mounting plate 4 are moved linearly, the disk mounting plate 4 is turned around one corner of the disk mounting plate 4 as compared with the case where the disk mounting plate 4 is turned.
The moving plane area of the disk mounting plate 4 is reduced, and the disk mounting plate 4 can be made smaller, more compact, and lighter.

[0057]

As described above, according to the present invention, the magazine is inserted and removed at a position where the outer peripheral edge of the disk loaded in the magazine is close to the spindle table of the player main body and the clamper opposed thereto. Therefore, the disc loaded in the magazine can be positioned between the spindle table of the player main body and the clamper opposed thereto by moving a distance slightly larger than the radius of the disc plus the radius of the disc receiving portion. As a result, the moving distance of the disk is reduced to about the width of the signal recording portion of the disk as compared with the conventional example. The recessed portion not connected to the above-mentioned hole for the disk clamp can prevent the part of the playing disk remaining on the magazine side from contacting with another disk mounting plate in the magazine, and can reduce the strength of the disk mounting plate. It is possible to reduce the thickness of the player while maintaining the size of the player, and to reduce the size of the player by avoiding an increase in the size of the magazine. Alternatively, the number of disks that can be loaded in the same volume of the magazine can be increased.

[Brief description of the drawings]

FIG. 1 is a front view of the present invention.

FIG. 2 is a vertical sectional front view of the player main body of the present invention.

FIG. 3 is a plan view of a player main body according to the present invention.

FIG. 4 is a plan view of the lock mechanism of the present invention.

5A is a cross-sectional plan view and FIG. 5B is a vertical sectional front view of a magazine according to the present invention.

FIG. 6 is a plan view of the elevator mechanism of the present invention.

FIG. 7 is a front view of a main part of the elevator mechanism of the present invention.

FIG. 8 is a plan view of the slide mechanism of the present invention.

FIG. 9 is a longitudinal sectional view of a disk mounting plate used in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chassis 2 Player main body 3 CD 4 Disc mounting plate 5 Magazine 7 Loading device 25 Spindle table 27 Clamper

Continuation of the front page (72) Inventor Tadanori Minke 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori Sanyo Electric Co., Ltd. (56) References JP-A-4-69855 (JP, A) JP-A-61-184764 (JP, A) JP-A-62-212964 (JP, A) JP-A-62-109258 (JP, A) JP-A-63-29258 (JP, U) JP-A-61-72767 (JP, U)

Claims (1)

(57) [Claims] 1. A chassis having an opening on one side of a front surface, a spindle table disposed on the other side of the chassis, a clamper opposed thereto, and a pickup unit disposed above a disk accommodating space. A player body provided with a disc, a disc mounting plate on which discs are mounted one by one, and a plurality of disc mounting plates built therein so that they can be individually pulled out, and the outer peripheral edge of the disc faces the spindle table in the player main body and the spindle table. A magazine which is inserted into and removed from the chassis through the opening so as to be close to and close to the clamper to be clamped, and a selected disc, a spindle table of the player main body, and a vertically movable clamper opposed thereto. Pull out the elevator mechanism for positioning and the disk mounting plate on which the one selected disk is mounted, A disc receiving portion is set between the spindle table of the player main body and a clamper opposed thereto , and the disc is placed even while the disc is rotating.
A slide mechanism for keeping the plate pulled out, and a hole for the disk clamped in the disk mounting plate corresponding to a portion of the disk moved into the player body remaining on the magazine side. A compact disc player having a recessed portion that is not connected to the compact disc player.