JPH0668579A - Compact disk player - Google Patents

Abstract

PURPOSE:To make the entire player small, compact in size and light in weight by loading a magazine to a position to which an outer circumference of a disk is close to a spindle table of a player main body and a clamper opposite to the table. CONSTITUTION:A magazine is loaded to a position to which an outer circumference of a CD 3 loaded in the magazine 5 is close to a spindle table 25 of a player main body 2 and a clamper 27 opposite to the table 25. Thus, the CD 3 is placed between the spindle table 25 of the player main body 2 and the clamper 27 opposite to the table 25 by moving the CD 3 by a distance slightly larger than a size between a radius of the CD 3 and a diameter of a disk reception section 3a. Since the moving distance of the CD is decreased, the entire CD player is made small and compact in size and the weight is made light.

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 made compact, compact and lightweight.

[0002]

2. Description of the Related Art In recent years, as a compact disc player (hereinafter, referred to as a CD player), for example, Japanese Patent Laid-Open No. 63-63.
As disclosed in Japanese Laid-Open Patent Publication No. 206951, a plurality of compact discs (hereinafter referred to as CDs) are provided in a chassis.
There is a type in which a magazine loaded with is loaded and a CD selected from this magazine is loaded in the player main body so that the player can play it.

One from a magazine containing a plurality of disks
A loading device for selecting a plurality of CDs and loading them into a player main body includes an elevator mechanism that positions the selected CDs at a predetermined height with respect to the player main body, and a CD at that height.
And a slide mechanism for moving the player from the magazine to the player body.

Each CD is individually placed on the disc mounting plate, and the slide mechanism horizontally moves the disc mounting plate so that the disc receiving portion of the CD faces the spindle table of the player body and the lower side thereof. Position it between the clamper. Then, the CD is lifted from the disc mounting plate by raising the clamper and sandwiching the disc receiving portion of the CD between the spindle table and the clamper, so that the CD can be rotated without contacting the disc mounting plate. .

As a method of horizontally moving the CD and disk mounting plate, a method of linearly moving in a direction parallel to the edge of the disk mounting plate and a disk mounting plate as disclosed in the above publication are disclosed. There is a method of turning around one corner of C, but in any case C stored in the magazine
D is horizontally moved a distance larger than the diameter and is loaded in the player main body.

[0006]

Therefore, in the conventional CD player of this type, at least the dimension in the moving direction of the CD needs to be set to be at least twice the diameter of the CD, which is small, compact and lightweight. It will be a disadvantage in terms of conversion.

In particular, in the system in which the disk mounting plate is pivoted about one corner as in the above 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 even more disadvantageous.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a compact, compact and lightweight CD player.

[0009]

SUMMARY OF THE INVENTION The present invention comprises a chassis,
A player main body disposed on one side of the chassis and a loading device that is inserted into and removable from the other side of the chassis and selects one disc from a magazine that stores a plurality of discs and loads the disc into the player main body. In order to achieve the above object, the outer peripheral edge of the disk loaded in the magazine is located close to the spindle table of the player main body and the clamper facing the same. It is characterized by being loaded with a magazine.

[0010]

In the present invention, since the outer peripheral edge of the disc loaded in the magazine is inserted and removed at a position close to the spindle table of the player main body and the clamper facing the magazine, the disc loaded in the magazine is inserted. Can be positioned between the spindle table of the player main body and the clamper facing it by moving a distance slightly larger than the radius plus the radius of the disc receiving portion. The moving distance of the disc is reduced to about the width of the signal recording section.

[0011]

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

(Schematic Configuration) As shown in the front view of FIG.
The chassis 1 is formed in a box shape in which the left half of the front surface is opened, and the player main body 2 is incorporated in the right side portion of the chassis 1. Further, a plurality of disc mounting plates 4 (here, a maximum of 6) mounted with CDs 3 are provided on the left side portion of the chassis 1.
A magazine 5 that can store the above and below at appropriate intervals is inserted and removed from the front.

When the magazine 5 is pushed into the loading position as described later, it is locked in the loading position by the lock mechanism 6 shown in the plan view of FIG.
The lock is released by pushing the eject button 1h of the panel 1g provided on the periphery of the panel so that the panel is ejected forward.

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

This loading device 7 is used for the selected CD
3 and a disk mounting plate 4 and an elevator mechanism 8 for adjusting the height of the player main body 2 and a diagram for horizontally moving the CD 3 and the disk mounting plate 4 whose heights are 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 from the player main body 2 in the magazine 5 by operating the slide mechanism 9 in the reverse direction.

The elevator mechanism 8 is configured to raise and lower both the magazine 5 and the player body 2 regardless of whether the magazine 5 is raised or lowered or the player body 2 is raised or lowered. Good. However, in this embodiment, since the number of CDs 2 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 becomes low.

(Player Main Body) As shown in the vertical front view of FIG. 2 and the plan view of FIG. 3, the player main body 2 is a frame 21 supported by a chassis 1 via an elevator mechanism 8 so as to be capable of being raised and lowered by a moderation, and a frame 21. A carriage 22 fixed to the upper surface of the frame 21 and a clamp support plate 23 swingably supported on the lower portion of the frame 21.

A spindle motor 24 is fixed to the left side of the carriage 22, a spindle table 25 rotatably driven by the spindle motor 24 is arranged below the spindle motor 24, and a right and left direction of the carriage 22 to the right and left of the spindle motor 24. A pickup unit 26 slidably supported by is provided.

A clamper 27 is rotatably supported on the left end of the clamp support plate 23 so as to face the spindle table 25, and the clamper 27 is pressed against the spindle table 25 by a spring 27 supported on the right end of the frame 21. I am trying. In addition, the spring 23 is used during loading, unloading and unloading of the CD 3.
In order to separate the clamper 27 from the spindle table 25 by a predetermined distance against the above, an unclamp mechanism 28 shown in FIG. 8 is provided.

Guides 2 for guiding the insertion and removal of the disc mounting plates 4 which are paired up and down respectively in the front and rear of the frame 2.
9 is provided.

(Locking Mechanism) An inner bottom plate 11 shown in FIG. 4 is provided at the bottom of the chassis 1 on the left side, and a lock mechanism 6 for locking the magazine 5 at the loading position.
Is assembled.

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

As shown in the cross-sectional plan view of FIG. 5 (a), at the rear end portion of the bottom surface of the magazine 5 corresponding to the lock 6f, from the position corresponding to the unlocked position of the lock 6f to the front. A concave groove 5a extending in an L shape is formed in the.

With the magazine 5 removed from the chassis 1, the lock 6f is pushed by the cam 6d to the unlocked position as shown by the solid line in FIG. 4, and the magazine 5 is opened from the opening 1f. When pushed
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 rearward by a certain amount or more, the lock tool 6f is pulled by the pressing spring 6g, and moves leftward, and is positioned at the lock position in the lateral side portion 5c of the concave groove 5a. Also,
The forward movement of the cam plate 6a is limited by the magazine 5 locked by the pin 6e and the lock 6f. The fact that the lock 6f is located at the lock position is detected by the micro switch 6h fixed to the lower surface of the inner bottom plate 11.

The lock mechanism 6 is unlocked in the following manner by pressing the eject button 1h shown in FIG. 1 to operate the elevator mechanism 8.

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

When the lock is released, the magazine 5 and the cam plate 6a are biased forward by the return spring 6b, and the magazine 5 is ejected from the chassis 1.
Also, by moving the cam plate 6a forward,
The cam 6d locks the pin 6e and the lock plate 6f in the unlocked position.

(Elevator Mechanism) As shown in the plan view of FIG. 6, the elevator mechanism 8 includes a pair of slide plates 81a, which are slidably supported on the front and rear walls 1a, 1b of the chassis 1 in the left-right direction. 81b and a bottom wall 1c of the chassis 1 so as to be pivotable, and both ends have both slide plates 81a and 81b.
The swing beam 82 engaged with the rear slide plate 81.
and a drive device 83 that drives a.

As shown in the front view of FIG. 7, a pair of left and right stepped grooves 84a are formed in the rear slide plate 81a, and a pair of left and right pins 2a projecting from the rear surface of the frame 21 are formed. By inserting the groove 84a into the pair of left and right vertical grooves 1d formed in the rear wall 1b of the chassis 1, the rear portion of the player main body 2 is stepped up and down when the rear slide plate 81a slides. I am trying to do it.

Further, as shown in FIG. 1, one slide groove 81b is formed on the front slide plate 81b so as to rise to the left, and one pin 2 protruding from the front surface of the frame 21 is formed.
The groove b is inserted into 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 swing beam 82, and is slid in the opposite direction to the rear slide plate 81a, so that the front portion of the player main body 2 is moved to the rear portion. It is designed to move up and down in synchronism with.

As shown in FIGS. 4 and 6, the rear slide plate 81a is formed with six recesses 81d corresponding to the 6 positions corresponding to the height of each CD 3 and the eject position. As described above, the positioning lever 84, which is supported on the bottom wall 1c of the chassis 1 so as to be horizontally swingable, is urged by the spring 85 to selectively project into the recessed portions 81d, whereby each of the rear slide plates 81a is moved. It is possible to position and lock at 6 positions corresponding to the height of the CD 3 and 7 positions of the eject position.

As shown in FIG. 6, a photo interrupter 86 is fixed to the upper portion of the chassis 1, and a mark plate 87 for interrupting the optical path of the photo interrupter 86 is continuously extended to the rear slide plate 81a. Cuts 87a are formed in the mark plate 87 at predetermined intervals in the left-right direction, and the light of the photo interrupter 86 passes through the cuts 87a, whereby the sliding positions of the slide plates 81a and 81b and the sliding motion of the player main body 2 are moved. The height is detected, and the drive device 83 is stopped at a position where the optical path of the photo interrupter 86 passes through the notch 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 shown by a solid line, and the oscillating beam 82 located at a position corresponding to the lowest CD3 is shown by a chain line.
Both slide plates 81a-8 located at a position corresponding to D3
1b and the rocking beam 82 are indicated by a two-dot chain line.

(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 and right directions.
An engaging member 92 that is supported on the right end of the slide beam 91 and projects forward from the slide beam 91, and is assembled on the rear portion of the player main body 2 as shown in FIG. 3, and drives to reciprocate the slide beam 91. And a device 93.

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, it is returned to the home position shown by the one-dot chain line in FIG.

The magazine 5 is shown in FIGS.
As shown in the vertical sectional front view of (b), the right end portions of the right side surface and the rear surface are open, and the right rear portion is obliquely cut out. 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 is
It is designed to project to 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 engaged with the engaging member 92.
Located at a height that meshes with. When the player main body 2 and the slide mechanism 9 are positioned at a height corresponding to the designated CD 3, the engaging portion 4 a of the disc mounting plate 4 on which the designated CD 3 is placed is positioned at a height at which the engaging member 92 meshes with the engaging member 92. Then, by subsequently operating the drive device 93, the slide beam 91 and the engaging member 92 move to the right, and the disc mounting plate 4 is pulled out from the magazine 5.

As indicated by a chain double-dashed line in FIG. 3 or FIG. 8, a designated CD 3 is placed until the disc receiving portion 3a of the CD 3 is located between the spindle table 25 of the player main body 2 and the clamper 27. When the placing plate 4 moves, the right end portion of the slide beam 91 is moved to the player main body 2
The rotor 28a of the unclamp mechanism 28 supported by the unclamp mechanism 28 is rotated in the clockwise direction to release the operation of the unclamp mechanism 28, and the spring 23 urges the clamper 27 upward. The disc receiving portion 3a of the CD 3 is held between them.

As a result, the CD 3 slightly floats above the disc mounting plate 4 and can be rotationally driven by the spindle motor 24 without contacting the disc mounting plate 4. It should be noted that this state is detected by turning on the micro switch 95 provided on the upper portion of the player main body 2 by the unclamp mechanism 28.

Here, it is important 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 facing the spindle table 25. 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 same by moving a distance slightly larger than the radius of the CD 3 plus the radius of the disc receiving portion 3a. Will be done.

When the drive device 93 is operated in the reverse direction, the slide beam 91 and the engaging member 92 move leftward, and the unclamp mechanism 28 is operated to operate the spindle table 2
The clamper 27 is separated from the disc 5, the CD 3 is lowered onto the disc mounting plate 4, and the disc mounting plate 4 is moved leftward and returned into the magazine 5.

The return of the slide beam 91 and the engaging member 92 to the left stroke end is detected by another micro switch provided in 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,
When the CD 3 is clamped between the spindle table 25 and the clamper 27, the CD 3 approaches the disc mounting plate 4 above the selected disc mounting plate 4, so that the vertical spacing of the disc mounting plate 4 becomes narrow. . There is no problem if the vertical spacing of the disc mounting plate 4 is set large, but the magazine 5
Also, in order to reduce the height of the CD player and downsize it, when the vertical spacing of the disc mounting plate 4 is set small, there is a risk that the designated CD 3 will come into contact with the upper disc mounting plate 4. Occurs.

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.
By indenting the part corresponding to the above in a semi-circular shape, the specified CD 3 contacts the upper disk mounting plate 4 even though the vertical spacing of the disk mounting plate 4 is set small. Is being prevented.

Note that FIG. 5 shows the top CD3.
As shown in (b), the lower surface of the top wall 5d of the magazine 5 has a semicircular thin portion 5e corresponding to the CD 3 moved to the player main 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.

Further, in order to prevent the CD 3 placed on the lower disc placing plate 4 in the magazine 5 from jumping up from the disc placing plate 4, FIG. 9 (a) and FIG. 9 (b)
As shown in FIG. 5, a pad 4b made of an elastic material is provided on the bottom surface of each disk mounting plate 4 so that the pad 4b is slidably contacted 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 player main body 2
The unclamp mechanism 28 is operated to separate the clamper 27 from the spindle table 25 for a certain period of time. The elevator mechanism 8 positions the player main body 1 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.

A plurality of CDs 3 are respectively mounted on the disc mounting plate 4
When the magazine 5 loaded and stored in is inserted into the chassis 1 through the opening 1f on the front surface of the chassis 1 and locked in the loading position by the lock device 6, the CD 3 to be reproduced is designated and the loading device 7 is operated. First, the elevator mechanism 8
The player body 2 is moved to a height corresponding to the designated CD 3 by the, and the slide mechanism 9 is continuously operated to drive the CD.
The disc mounting plate 4 on which the disc 3 is mounted is pulled out from the magazine 5 and moved to the player main body 2.

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

When the disc receiving portion 3a of the CD 3 moves to a position between the spindle table 25 and the clamper 27, the operation of the unclamp mechanism 28 is released, the clamper 27 moves up toward the spindle table 25, and the spindle table 25 and the clamper 27 move. The disc receiving portion 3a of the CD 3 is sandwiched between the disc 27 and the disc 27. As a result, the CD 3 is lifted from the disc mounting plate 4 and can be rotated without coming into contact with the disc mounting plate 4.

Thereafter, when the slide mechanism 9 is operated in the reverse direction, the unclamp mechanism 28 operates and the clamper 27 is activated.
Is separated from the spindle table 25 for a while, and CD3
Are lowered onto the disk mounting plate 4. And this CD3
By moving the disc mounting plate 4 and the disc mounting plate 4 from that position in the player main body 2 by a distance slightly larger than the dimension of the radius of the CD 3 plus the radius of the disc receiving portion 3a, the disc mounting plate 4 is returned to a predetermined position in the magazine 5. Be done.

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

As described above, in this CD player, C
At the time of loading and unloading the D3 onto the player main body 2, the CD3 is moved by a distance slightly larger than the size of the radius plus the radius of the disc receiving portion 3a. The size can be reduced to the same extent as the radial width of the signal recording portion of the CD 3 as compared with the conventional example in which it is moved, and it can be made compact, compact and lightweight.

Further, since the CD 3 and the disc mounting plate 4 are moved linearly, as compared with the case where the disc mounting plate 4 is rotated around one corner of the disc mounting plate 4,
The moving plane area of the disk mounting plate 4 is reduced, and the size, the size and the weight can be further reduced.

[0057]

As described above, according to the present invention, the magazine is loaded 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 facing the spindle table. Therefore, the moving distance of the CD is reduced, and the entire CD player can be made compact, compact, and lightweight.

[Brief description of 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 the player body of the present invention.

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

FIG. 5 is (a) a cross-sectional plan view and (b) 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 vertical sectional view of a disk mounting plate used in the present invention.

[Explanation of symbols]

 1 Chassis 2 Player Main Body 3 CD 4 Disc Placement Plate 5 Magazine 7 Loading Device 25 Spindle Table 27 Clamper

Claims (1)

[Claims] 1. A chassis, a player main body arranged on one side of the chassis, and a magazine which is removably loaded on the other side of the chassis and stores a plurality of discs.
In a compact disc player equipped with a loading device for selecting a single disc and loading it in the player body, the outer peripheral edge of the disc loaded in the magazine comes close to the spindle table of the player body and the clamper facing it. A compact disc player in which a magazine is loaded at a position.