JPH0621080Y2 - Disk magazine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Use of the Invention) The present invention relates to a disk magazine for a CD player with an autochanger.

(Background Art) This applicant holds a plurality of compact discs (hereinafter simply referred to as discs) set in a magazine in the previous application by a disc transport member and moves and places them on a turntable. We proposed an automatic disk replacement device that is configured to be held by a transport member and returned to the magazine.

The disk magazine we proposed at that time only clamped the edges of the disk with a weak pressure on the shelves, so when removing the magazine from the magazine receiver and re-installing it to set the disk There was a lot of fear that the disc would fall out when tilted.

(Technical problem) An object of the present invention is to provide a disk magazine which is devised so that the disk does not easily fall off in a set state with respect to the magazine and does not interfere with holding the disk by the disk transport member. It is in.

(Technical Means) In order to achieve the above-mentioned object, the present invention relates to a disk magazine for a CD player, which is equipped with a disk conveying member that holds a disk set in the magazine and moves and returns the disk onto a turntable. A plurality of holding chambers, which are divided by a partition plate and whose front end and both sides are open, are stacked in the thickness direction, and a rotation center is provided at a position displaced from the center of the disk housed in each holding chamber. A pair of locking arms are rotatably arranged on the partition plate, and a gear portion is provided on the pair of locking arms so that the gear portions mesh with each other, and the pair of locking arms approach each other. It is configured such that the edge of the disk is locked by the tip of each locking arm by urging it in the direction of.

(Embodiment) According to the drawings, in FIG. 1, for example, a cover 2 is attached to a case body 1 of a CD player so as to be openable and closable, and the magazine 2 is loaded by opening the cover 2. There is.

As shown in FIG. 3, the case body 1 with the cover 2 opened
A magazine receiver 4 is provided inside, and the magazine 3 is placed on the magazine receiver 4. The magazine receiver 4 is vertically movably mounted on a support shaft 6 erected on a substrate 5, and a rack 7 mounted on a side portion thereof.
Is engaged with a pinion gear 10 rotated by a drive motor 8 via a gear-type drive force transmission means 9.

In addition, 11 is a slit plate for positioning the magazine receiver 4,
12 is a photo sensor, for example.

Next, a plane substantially H-shaped member, which is installed on the mounting plate 14 mounted on the substrate 5 via the support shafts 13, 13, so as to be horizontally movable, is the disk conveying member 15. .
The disk transport member 15 has a pair of holding arms 15a, 15a, and a rack 18 provided on one side of the turntable 17 mounted on the rotary shaft 16a of the drive motor 16 and the magazine 3 so as to reciprocate. The toothless portion 21 is rotated by the drive motor 19 via, for example, a gear-type drive force transmission means 20.
It is in mesh with the pinion gear 21 having a. A pair of disk lifting members 22, 22 are rotatably attached to the tips of the holding arms 15a, 15a by support shafts 23, 23. The disk lifting members 22, 22 are torsion coil springs 24, 24.
It is urged to rotate in one direction by the plungers 25 and 25 attached to the disk conveying member 15,
The rotation thereof is controlled via the actuating members 26, 26. Further, an LED is provided on the disk conveying member 15.
A light source 27 such as the above is attached, and a photo sensor 28 is provided at a position facing the light source 27 of the disk conveying member 15 in a fixed position.

Further, a disk pressing member 29 located above the disk transport member 15 is pivotally supported by a pin 31 while being biased in one direction by compression coil springs 30, 30.
A passive member protruding from one side of the disk pressing member 29.
29a is in contact with a cam portion 32 formed on the upper portion of the pinion gear 21.

The magazine 3 has one end formed with a plurality of holding chambers 3c, 3c, ... In the thickness direction on a bottom plate 3b provided with bosses 3a, 3a for placing the magazine receiver 4 at correct positions. Partition plates 3d, 3d ... that open each part and partition each holding chamber 3c, 3c ..
A pair of holding arms 3e, 3e ... Can be horizontally rotated at a position apart from the center of a hole a ... Is pivoted so that The holding arms 3e, 3e have fan-shaped gear portions 3f, 3f, as shown in FIG. 5, which mesh with each other and rotate in opposite directions by torsion coil springs 3g, 3g. Are encouraged to do so.
Further, particularly, as shown in FIG. 6, a locking portion 3i having a tapered portion 3h so as to contact only the edge portion of the disk A is provided at the tips of the holding arms 3e, 3e.

Next, the operation and effect will be described. First, the cover 2 is opened, the magazine 3 placed on the magazine receiver 4 is taken out, and the discs A, A.
・ Mount the At that time, if the opposite edges of the disk A are sandwiched by one hand and pushed horizontally into the holding chambers 3c, 3c ..., The locking arms 3e, 3e that abut the edges of the disk A are held.
Is rotated against the elasticity of the torsion coil springs 3g, 3g to allow the disk A to move, and the disk A is held in the holding chamber 3c.
Torsion coil springs 3g, 3g when fully stowed inside
Is returned to its original position by the elastic force of and the edge of the disk A is stopped by the engaging portions 3i, 3i, as shown by the solid lines in FIGS. 4 to 5. At this time, the side of the disk A inserted into the holding chamber 3c has tapered ribs 3j, 3 provided at the end of the holding chamber 3c.
The recording surface is prevented from coming into contact with the opposing partition plate 3d by j.

Alternatively, when the disk A is set in each holding chamber 3c, one of the locking arms 3e is twisted by one hand and the coil spring 3g is set.
When it is rotated against the elastic force of and is retracted in advance, the other locking arm 3e also rotates and retracts together. Therefore, even if the disk A is completely stored in the holding chamber 3c with the other hand and the hand is released, the locking arms 3e, 3e are returned to the original positions and the disk A is locked by the locking portions 3i, 3i. good.

This is the main reason why the locking arms 3e, 3e are provided with the gear portions 3f, 3f that mesh with each other.

In this way, each disk A, A ...
Set in the holding chambers 3c, 3c ... of the locking arms 3e, 3e
... After locking with, mount the magazine 3 on the bosses 3a, 3a.
The holes are aligned and fixed on the magazine receiver 4. At this time, even if the magazine 3 is held and tilted by hand, the disks A and A are locked by the locking arms 3e and 3e. So it won't fall out.

The uppermost one of the disks A, A, ... Stored in the magazine 3 with the magazine 3 mounted and fixed on the magazine receiver 4 is at the tip of the disk conveying member 15 as shown in FIG. It will be located on the same plane as the advancing direction of the mounted disc lifting members 22, 22.

So when you play this top disc A,
For example, when the holding chamber 3c accommodating the disk A is referred to as a first stage for convenience, when a switch (not shown) labeled as the first stage is turned on, the drive motor 19 rotates first. This driving force is transmitted to the pinion gear 21 through the driving force transmission means 20 and rotates it in the counterclockwise direction.
Since it is opposed to 8, the disk conveying member 15 does not move, and the tip side of the disk pressing member 29 is compressed by the compression coil spring 30 via the passive member 29a with which the rotating cam portion 32 is in contact. It pushes up against the elasticity of 30, then the pinion gear 21 meshes with the rack 18, and the disk conveying member
Move 15 in the direction of magazine 3.

Then, the tip ends of the holding arms 15a, 15a of the disk conveying member 15 contact the locking portions 3i, 3i of the locking arms 3e, 3e, and rotate them against the elasticity of the torsion coil springs 3g, 3g. Therefore, since the rotation fulcrums of the locking arms 3e, 3e are away from the center of the disk A, the locking portions 3i, 3i are smoothly retracted while being separated from the edge of the disk A, and the disk conveying member 15
Allow progress.

Subsequently, the claw portions 22a, 22a of the disk lifting members 22, 22 attached to the holding arms 15a, 15a contact both sides of the disk A, but the pressing direction matches the insertion direction of the disk A into the holding chamber 3c. Therefore, the disk holding members 22 and 22 move slightly against the elastic force of the torsion coil springs 24 and 24, and both sides of the disk A are held between the disk holding members 22 and 22 and the other claws 22b and 22b. When in such a state, the drive motor 19 is stopped by, for example, a not-shown limit switch (which is often provided on the pinion gear 21). At this time, the locking arms 3e, 3e are in the positions shown by phantom lines in FIGS. 4 to 5. Then, since the drive motor 19 starts rotating in the opposite direction this time, the pinion gear 21 also rotates in the opposite direction, and the disc conveying member 15 starts to return to the original position via the rack 18.

Then, the claw portions 22a, 22a, 22b, 22b of the disk lifting members 22, 22 are
The holding force for the disk A by the rib is the rib portion of the holding chamber 3c.
Since 3j and the tongue piece 3k are stronger than the force holding the disk A, the disk A leaves the holding chamber 3c, and the disk conveying member 15
At the same time, they are both held by the disk lifting members 22, 22 and start horizontal movement together. It should be noted that the locking arms 3e, 3e are rotated by the elastic force of the torsion coil springs 3g, 3g and return to their original positions as the disk conveying member 15 retracts.

When the disk carrying member 15 which continues to move backward returns to the original position, the rack 18 falls into the toothless portion 21a of the pinion gear 21, so that the disk carrying member 15 stops. In this state, the disk A is located just above the turntable 17. Then, by the cam portion 32 provided on the pinion gear 21 that is still rotating, the disk pressing member 29 that brings the passive member 29a into contact with this cam portion,
Due to the elasticity of the compression coil springs 30, 30
At the same time, the limit switches (not shown) actuate the plungers 25, 25 to rotate the disk lifting members 22, 22 via the actuating members 26, 26 against the elasticity of the torsion coil springs 24, 24. Therefore, the disk A is the disk lifting member 2
The hold by 2 and 22 is released and it descends on the turntable 17.

As shown in FIG. 3, the turntable 17 is provided with a tapered protrusion 17a at the upper end thereof.
The disk 7a and the hole a provided at the center of the disk A are engaged with each other, and the disk A is placed on the turntable 17 without causing a positional deviation. At the same time, the disk pressing member 29, which continues to descend as described above, presses the upper surface of the disk by a rotating disk (not shown).
The mounted state with respect to is stable. Then, the drive motor 19 is stopped by a limit switch (not shown), but this time the drive motor 16 rotates and the optical pickup 33
Starts moving and starts playing. A holding current is being applied to the plungers 25, 25 during this performance, and the operating members 26,
The disk lifting members 22 and 22 are kept in a state in which they are rotated against the elasticity of the torsion coil springs 24 and 24 via 26.

When the performance ends, the drive motor 16 stops, this time the drive motor 19 starts to rotate, and first the cam portion 32 causes the passive member to move.
The disk pressing member 29 is pushed up against the elasticity of the compression coil springs 30, 30 via 29a. Disk pressing member 2
When 9 leaves the upper surface of the disk A, the holding current for the plungers 25, 25 is turned off, so the disk lifting member 2
2 and 22 are returned to their original positions by the elastic force of the torsion coil springs 24 and 24, and at the same time, the disk A is lifted and held on the turntable 17 by the claw portions 22a, 22a, 22b and 22b. Since the pinion gear 21 and the rack 18 mesh when the disk pressing member 29 is lifted to the extent that it does not hinder the horizontal movement of the disk carrying member 15, the disk carrying member 15 is
The horizontal movement toward the magazine 3 is started with the disk holding members 22 and 22 held, and as described above, the locking arms 3e and 3e are pushed by the tips of the holding arms 15a and 15a and the disk A is pressed.
Is returned to the holding chamber 3c and mounted. Then, the plungers 25, 25 are turned on by the action of the photo sensor 28, the disk lifting members 22, 22 rotate against the elasticity of the torsion coil springs 24, 24, and the claw portions 22a, 22a, 22b, After releasing the detention of the disk A by 22b, the disk A is mounted in the holding chamber 3c. At the same time, the drive motor 19 rotates in the opposite direction to return the disk conveying member 15 to the original position, and the disk pressing member 29 is lowered again and then stopped.

When the disk transport member 15 retracts, the locking arms 3e, 3e are returned to their original positions by the elasticity of the torsion coil springs 3g, 3g as described above, and returned to the holding chamber 3c by the locking portions 3i, 3i. The edge of the disk A is locked again.

In this way, one operation is completed.

Next, when playing the disk A mounted in the second-stage holding chamber 3c from the top, when the corresponding switch is turned on, first, the drive motor 8 rotates and the drive force transmission means 9 is used. Since the pinion gear 10 is rotated by means of the rack 7, the magazine receiver 4 ascends together with the magazine 3 via the rack 7 meshing with the pinion gear 10, and the disc A mounted in the second-stage holding chamber 3c is at the original position. When the disk A of the first stage in the state is reached, the slit plate 11 and the photo sensor 12 work to stop the drive motor 8 by turning it off.

Then, the drive motor 19 is subsequently turned on, the same operation as described above is repeated, and the second-stage disc A is played and returned to the original position.

In this way, the holding parts 3c, 3c
The discs A, A ... Attached to the ... are those which are sequentially or randomly selected and played, and then returned to their original positions. When moving from the lower stage to the upper stage, the drive motor 8 is used.
Is reverse rotation. The above selections can be made continuously by known means, and at the end of the performance, the magazine receiver 4 descends to return the magazine 3 to its original position.

It is rational that the locking arms 3e, 3e are operated by the holding arms 15a, 15a of the disk conveying member 15, but they are not necessarily holding arms and may be replaced by other moving members.

(Effects) As described above in detail, according to the present invention, a plurality of disks can be held with a relatively simple structure so as not to fall off, and even with this configuration, the CD player There is an effect that the disk can be easily attached and detached without complicating the structure of the autochanger.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a perspective view of a CD player using a magazine according to the present invention, FIG. 2 is a perspective view of a magazine according to the present invention, and FIG. FIG. 4 is a front view of the automatic disk exchanging device, FIG. 4 is a plan view of the same, FIG. 5 is a partial sectional plan view of a magazine according to the present invention, and FIG. 6 is a side view of a locking arm. A ... Discs, 3 ... Magazines 3c, 3c ... Holding chambers, 3d, 3d ... Partition plates 3e, 3e ... Locking arms, 3f, 3f ... Gear parts 3g, 3g ... Torsion coil springs 3i, 3i ... Locking parts, 4 ... Magazine receiver 15 ... Disk conveying member 17 ... Turntable 29 ... Disk pressing member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tomoyuki Iwasa, Inventor, Sanyo Denki Co., Ltd., 3-201, Minamiyoshikata, Tottori City, Tottori Prefecture (56) References: 61-72766 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. A disk magazine for a CD player having a disk conveying member for holding a disk set in a magazine and moving and returning the disk onto a turntable, the disk magazine being divided by a partition plate to open the front end and both sides. A plurality of holding chambers are stacked in the thickness direction, and a pair of locking arms are rotated around the partition plate so as to have a rotation center at a position displaced from the center of the disk housed in each holding chamber. The pair of locking arms are movably arranged, and gear parts are provided on the pair of locking arms so that the gear parts mesh with each other, and the pair of locking arms are biased toward each other so that the locking arms are engaged with each other. A disk magazine characterized in that the edge of the disk is locked at the tip of the disk. 2. The disk magazine according to claim 1, wherein the locking arm is operated by the disk carrying member.