JP3320780B2 - Cartridge loading device and cartridge eject device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention moves a cartridge containing a disk-shaped information recording medium, such as an optical disk, a magneto-optical disk, and a phase-change optical disk, with respect to a drive motor for rotating the information recording medium. cartridge·
The present invention relates to a loading device and a cartridge ejection device.

[0002]

2. Description of the Related Art Conventionally, a cartridge accommodating a recording disk is moved up and down in a disk drive for mounting or discharging to a drive motor installed in the disk drive.

For this reason, a space is required in the disk drive to allow the cartridge to move, which has been an obstacle to downsizing the disk drive. Therefore,
As described in Japanese Patent Application Laid-Open No. 1-211265, it has been proposed to move the drive motor or the rotating shaft of the drive motor up and down with respect to the cartridge without moving the cartridge up and down.

[0004]

In the above-mentioned prior art, moving the rotary shaft of the drive motor up and down with respect to the recording disk of the cartridge is effective in reducing the size and thickness of the disk drive. However, there are the following problems.

Since the rotating shaft moves up and down along the bearing, a certain gap is required for the bearing, and the amount of rotation eccentricity is larger than that of a normal drive motor that does not require the rotating shaft to move up and down. However, there is a possibility that recording / reproducing on the recording disk may be hindered.

When an elastic body is provided to apply a biasing force to the rotation shaft, resonance occurs in the rotating recording disk. In particular, near the resonance frequency, the surface deflection and eccentricity of the recording disk increase, and
Reproduction is hindered.

An object of the present invention is to provide a cartridge loading device and a cartridge ejecting device which can solve the above problems and can be reduced in size and thickness.

[0008]

To achieve the above object, a cartridge loading device according to the present invention is a cartridge loading device for moving a cartridge containing an information recording medium with respect to a driving position by a driving motor. the driving of the moving process of the cartridge
Before a moving motor and said information recording medium abuts, in contact with the information <br/> information recording medium, and a pressing means for moving the information recording medium in the direction opposite to the installation side of the drive motor, wherein
When the drive motor is in contact with the information recording medium
Then, the pressing means is retracted outside the cartridge case.
Means for causing the pressing means to separate from the cartridge
And characterized in that:

[0009]

Further, the pressing means is provided with a tapered surface or a curved surface which comes into contact with a hub provided on the information recording medium.

Further, the taper surface or the curved surface of the pressing means can be brought into contact with the outer surface of the cartridge case.

Further, the pressing means is elastically supported.

A cartridge containing an information recording medium
To move the car with respect to the drive position by the drive motor
In the cartridge loading device, the cartridge
Contacting the information recording medium during the movement of the
The recording medium is moved in the direction opposite to the installation side of the drive motor.
And a cleaning means provided on the pressing means for cleaning the surface of the information recording medium.

Furthermore cartridge ejector of the present invention, the cartridge containing an information recording medium, in the cartridge-eject device for moving to drain from the driving position by the drive motor, said cartridge
The transfer process di in contact with the information recording medium, and a pressing means for moving the information <br/> information recording medium in a direction away from the drive motor, and the driving motor and the information recording medium
When in contact, release the pressing means from the cartridge.
The cartridge is retracted outside the cartridge, and the pressing means is
And means for separating from

A cartridge containing an information recording medium
To move from the position driven by the drive motor
In the cartridge ejecting device for
Contacting the information recording medium to drive the information recording medium into the drive mode.
A pressing means for moving in a direction away from the over data, the said information recording medium before the start cartridge ejection operation by the pressing means is separated from said drive motor, said pressing means in said cartridge <br/> di discharging operation midway The information recording medium is moved so as not to contact an information recording area of the information recording medium.

Further, the pressing means is provided near a driving motor.

[0017]

According to the configuration of the cartridge loading apparatus, the information recording medium is moved to the position driven by the drive motor while the information recording medium is moved in the direction opposite to the installation side of the drive motor by the pressing means during the movement of the cartridge. Therefore, the amount of vertical movement of the cartridge with respect to the drive motor, which is set in consideration of the contact between the information recording medium and the drive motor in the movement process, can be reduced, and the overall apparatus can be reduced in size and thickness. Become.

The information recording medium is moved by the pressing means in the direction opposite to the installation side of the drive motor until the driving motor contacts the information recording medium at the driving position, and after the contact, the pressing means moves out of the cartridge case. Evacuated and cart
Will be separated from the ridge, the recording of information, reproduction, an adverse effect by pressing means is in contact with the information recording medium in rotation for erasing rather than, moreover, a car from the pressing means
Vibration during driving may be transmitted to the cartridge.
And can be prevented .

Further, since the taper surface or the curved surface of the pressing means comes in contact with the hub of the information recording medium, the information recording medium can be smoothly moved by the pressing means.

When the tapered surface or the curved surface comes into contact with the outer surface of the cartridge case, the pressing means and the information recording medium are separated from each other in such a state that the pressing means is retracted out of the cartridge case. Is performed without using.

Further, by elastically supporting the pressing means,
The shock at the time of the moving operation of the pressing means is reduced.

By providing a cleaning means in the pressing means, the surface of the information recording medium can be easily cleaned.

Further, according to the configuration of the cartridge ejecting apparatus of the present invention, the information recording medium is moved away from the drive motor by the pressing means, and the cartridge is ejected. The amount of vertical movement of the cartridge with respect to the drive motor, which is set in consideration of contact with the cartridge, can be reduced, and the size and thickness of the entire apparatus can be reduced. Only
Also when the drive motor and the information recording medium are in contact
Is to retract the pressing means out of the cartridge, and
By moving the step away from the cartridge,
Vibration during drive is transmitted to the cartridge
Can be prevented.

Before the discharging operation to the cartridge is started, the moving means of the pressing means is completed by separating the information recording medium and the drive motor by the pressing means, so that the pressing means and the information recording medium can be moved during the discharging operation. Can be prevented from contacting, and the information recording medium is not damaged.

By disposing the pressing means in the vicinity of the drive motor, the pressing means can be installed close to the holding portion of the information recording medium with the driving motor, and the operation of the pressing means on the information recording medium can be performed. It is stable and does not tilt or distort the information recording medium during its operation.

[0026]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing a first embodiment of a cartridge loading device and a cartridge ejection device according to the present invention. One side into which a cartridge 1 containing an information recording medium (not shown) is inserted is shown. A lever 3 urged in a direction of discharging the cartridge 1 from the tray 2 by urging means (not shown) is provided on the opened tray 2.
Is provided. The slider 4 provided on the lever 3 guides the rotation of the lever 3 by moving along a guide hole 5 formed in the tray 2. Further, a plurality of pins 6 are fixed on both sides of the tray 2, and these pins 6 are provided movably along grooves 8 of a carrier 7 installed below. A rack 9 provided on a part of the carrier 7 and a gear provided on a motor 10 for driving the carrier
When the gear 11 is rotated, the carrier 7 is moved in the direction of the arrow a. At this time, the pin 6 moves along the groove 8 of the carrier 7 to rotate the information recording medium. The tray 2 is moved in a direction away from the motor 12.

Numeral 14 denotes a hub pressing mechanism installed near the side of the spindle motor 12, and has a structure shown in detail in an exploded perspective view of FIG. The contacting hub pressing member 15 is elastically supported by a leaf spring 16. The leaf spring 16 is fixed to a drive base 18 via a holding member 17 with a screw 19. Also drive base
A shaft 20 is fixed to 18, and a rotating lever 21 is rotatable with respect to the shaft 20. When the bent portion 21a formed on the rotating lever 21 contacts the outer surface of the cartridge 1, the rotating lever 21 rotates, and the tip 21b of the rotating lever 21 is moved to the side of the hub pressing member 15. Protrusion 15b provided
Lift.

Further, as shown in detail in the exploded perspective view of FIG. 3, a disk pressing member 25 having a cylindrical central portion is provided around the spindle motor 12. A pair of flanges 25a are integrally provided on the side of the disc pressing member 25, and a pin 26 is protruded from each end.
The pin 26 is a pair of arms 27 rotatable about a shaft 28 as a rotation axis.
Are respectively inserted into holes 27a provided at the front end.

The above rotation drive is performed by the motor 10. That is, the gear 11 and the worm gear 32 are fixed to the output shaft 30 of the motor 10. By the rotation of the worm gear 32, the worm gear 33 rotates, and the cam 34 provided coaxially rotates. The pin 36 pressed by the spring 35 against the cam 34 moves up and down by the rotation of the cam 34. Pin 36
Is fixed to the arm 27b of one arm 27,
The rotation of the cam 34 causes the disk pressing member 25 to move up and down. The motor 10 also serves as a drive source of the carrier drive mechanism as described above.

Next, the operation of the above embodiment will be described.

At the time of cartridge loading, the cartridge 1 is inserted into the tray 2 and abuts on the lever 3.
When the cartridge 1 is further inserted, the lever 3 is pressed and rotated, and the pin 6 is lowered while pressing the groove 8 of the carrier 7. That is, the tray 2 and the spindle motor
Tray 2 moves in the direction approaching 12. At this time, the rotation of the lever 3 in the ejection direction of the cartridge 1 is prohibited by the latch pin 7 a provided on the carrier 7.

When the cartridge is ejected, the motor 10
Is driven, the carrier 7 moves in the direction of the arrow a, and the groove 8 of the carrier 7 presses the pin 6. Therefore, the tray 2 is raised. At this time, since the latch pin 7a is separated from the lever 3, the cartridge 1 is ejected from the tray 2 by the urging force from the lever 3.

During the above operation, as described above,
When the bent portion 21a of the rotating lever 21 abuts on the outer surface of the cartridge 1, the rotating lever 21 is rotated, and the tip 21b of the rotating lever 21 has a protrusion 15b provided on the side of the hub pressing member 15. lift.

When the outer surface of the cartridge 1 is separated from the bent portion 21a, the restoring force of the leaf spring 16 causes the hub pressing member 15 to be separated from the hub described later, and the protrusion 15b
Presses the tip 21b of the rotating lever 21 to rotate the lever 21. Thus, the bent portion 21 of the rotating lever 21
Depending on the position of the cartridge 1 with respect to a, the hub pressing member 1
5 can control the pressing operation on the hub.

FIGS. 4A to 4G are diagrams for explaining the loading operation of the above embodiment. The cartridge 1 has an information recording medium (hereinafter, referred to as a disk) 40 such as an optical disk or a magneto-optical disk inside. A hub 41 is fixed to the center of the disk 40 and a notch window 42 is formed on the lower surface of the cartridge 1 from the spindle motor 12 side (right side) to the left side of the hub 41. .

In FIG. 4A, the cartridge 1 is inserted toward the spindle motor 12. The tip of the spindle motor 12 is substantially the same height as the notch window 42 provided in the cartridge 1. The tip of the hub 41 is located lower than the tip of the spindle motor 12 inside the cartridge 1. The bent portion 21 a of the rotating lever 21 is pressed by the cartridge 1, and lifts the hub pressing member 15 until it is substantially at the same height as the tip of the spindle motor 12.

In FIG. 4B, the taper surface (or curved surface) 15a of the hub pressing member 15 contacts the hub 41, and the disk 40 is lifted inside the cartridge 1. The lifted hub 41 is located higher than the spindle motor 12. In FIG. 4C, the hub 41 is a hub pressing member 1
5, on the spindle motor 12. In FIG. 4 (d),
Since the bent portion 21a of the rotating lever 21 is separated from the cartridge 1, the hub pressing member 15 is lowered. Therefore, the hub pressing member 15 is separated from the cartridge 1 and is in a retracted state.

Further, the cartridge 1 is inserted, and FIG.
When the position (e) is reached, the hub 41 is
4F, the disk 40 is mounted on the turntable 46 of the spindle motor 12 in FIG. Due to the warp of the disc 40, the cartridge 1 is lowered so that the disc 40 does not come into contact with the inner wall of the cartridge 1 during rotation. In FIG. 4 (g), the loading operation ends.

FIGS. 5A to 5G are views for explaining the ejecting operation of the above embodiment. In FIG. 5A, the tip of the spindle motor 12 has the same height as the lower surface of the disk 40. ,
It is higher than the notch window 42 provided in the cartridge 1. FIG.
As shown in (b), the cartridge 1 is lifted by the tray 2 and the carrier 7 as described above until the tip of the spindle motor 12 is lower than the notch window 42 or is at the same height.

In FIG. 5C, as described above, the disk 40 is separated from the spindle motor 12 by raising the disk pressing member 25. With the ejection operation of the cartridge 1, when the hub 41 is positioned above the spindle motor 12 as shown in FIG. 5D, the disc pressing member 25 is lowered as shown in FIG. 5E. At this time, the information recording area 40a provided on the disk 40 is far from the disk pressing member 25, and does not contact. The hub 41 rides on a turntable 46 at the tip of the spindle motor 12.

In FIG. 5F, the hub pressing member 15 lifts the hub 41 when the rotating lever 21 is pressed by the cartridge 1 in accordance with the cartridge discharging operation. FIG.
In (g), the eject operation ends.

As shown in FIG. 6, the hub pressing member 15
If a cleaning member 50 composed of a brush or the like is provided, dust or the like adhering to the surface of the disk 40 can be removed by the cleaning member 50 every time the cartridge 1 is loaded and ejected.

[0044]

[0045]

[0046]

As described above, according to the cartridge loading apparatus of the present invention, the information recording medium can be loaded and moved with respect to the cartridge while the information recording medium is moved in the direction opposite to the installation side of the drive motor by the pressing member. The amount of vertical movement of the cartridge, which is set in consideration of the contact between the recording medium and the drive motor, can be reduced, so that the entire apparatus can be made smaller and thinner. After contact with
Retracting the pressing member out of the cartridge case , and
The pressing member can be separated from the cartridge to prevent adverse effects on the information recording medium during the rotational driving, and the taper surface or curved surface of the pressing member is brought into contact with the hub of the information recording medium and the outer surface of the cartridge. The moving and retreating operation can be performed smoothly with a simple configuration, and the elasticity of the pressing means can reduce the shock at the time of operation by the pressing means, and by providing the cleaning means to the pressing means,
The surface of the information recording medium can be easily cleaned with a simple configuration.

Further, according to the cartridge ejecting apparatus of the present invention, the information recording medium can be moved in the direction away from the drive motor by the pressing member and can be ejected with respect to the cartridge. The volume can be reduced, the device as a whole can be reduced in size and thickness, and the drive motor
When the information recording medium is in contact with
Evacuate the cartridge, and press the
From the pressing means to the cartridge
Prevents transmission of vibration during driving
It can, also before the start ejecting operation separates the drive motor and the information recording medium by the pressing member, by moving in the middle cartridge ejection operation so as not to contact said pressing means in the information recording area of the information recording medium ,
The information recording medium can be prevented from being damaged by the pressing member, and the operation of the information recording medium by the pressing means is stabilized by installing the pressing means near the drive motor, that is, at the holding portion of the information recording medium. It is possible to prevent the information recording medium from being tilted or distorted during operation.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a first embodiment of a cartridge loading device and a cartridge ejection device of the present invention.

FIG. 2 is an exploded perspective view of a hub pressing mechanism.

FIG. 3 is an exploded perspective view of a mechanism relating to a disk pressing member.

FIG. 4 is an explanatory diagram of a loading operation of the first embodiment.

FIG. 5 is an explanatory diagram of an ejection operation of the first embodiment.

FIG. 6 is an explanatory diagram of a hub pressing member provided with a cleaning member.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cartridge 7 ... Carrier 12 ... Spindle motor (drive motor) 15 ... Hub pressing member (pressing means)
15a: tapered surface, 16: leaf spring, 21: rotating lever,
21a: bent portion, 25: disk pressing member, 40: disk (information recording medium), 41: hub, 42: cutout window, 50: cleaning member.

Claims (8)

(57) [Claims] The method according to claim 1 An information recording medium storing the cartridge in the cartridge loading device for moving relative to the drive position by the drive motor, and the drive motor of the cartridge <br/> di transfer process and the information recording medium But
Before contacting, in contact with the information recording medium, and a pressing means for moving the information recording medium in the direction opposite to the installation side of the drive motor, and the driving motor and the information recording medium
The pressing means is in contact with the cartridge when the
Retreat outside the case, and press the pressing means to the cart.
Means for separating the cartridge from the ridge . 2. The apparatus according to claim 1, wherein said pressing means is provided on an information recording medium.
2. The cartridge loading apparatus according to claim 1 , wherein a tapered surface or a curved surface is provided for contacting the hub . 3. A tapered or curved surface of said pressing means.
When the cartridge loading apparatus according to claim 2, characterized in that to allow contact with the outer surface of the cartridge case. 4. The cartridge loading device according to claim 1, 2 or 3 further characterized in that said pressing means is elastically supported. 5. A cartridge containing an information recording medium.
To move the car with respect to the drive position by the drive motor
In the cartridge loading device, the cartridge
Contacting the information recording medium during the movement of the
The recording medium is moved in the direction opposite to the installation side of the drive motor.
Pressing means, and the information recording means provided on the pressing means.
Features and to Luca cartridges loading apparatus further comprising a cleaning means for cleaning the surface of the recording medium. 6. A cartridge containing an information recording medium.
To move from the position driven by the drive motor
In the cartridge ejecting device for
In the process of moving the cartridge, it comes into contact with the information recording medium.
And moving the information recording medium away from the drive motor.
Pressing means for moving the drive motor,
When the recording medium is in contact with the recording medium,
Withdraw the cartridge out of the cartridge, and
To a further comprising a means for releasing the cartridges Luke
Cartridge eject device . 7. A cartridge ejecting device for moving a cartridge containing an information recording medium from a position driven by a drive motor to eject the cartridge, wherein the cartridge is in contact with the information recording medium, and Comprising pressing means for moving in a direction away from the drive motor ,
The information is provided by the pressing means before the cartridge discharging operation is started.
The recording medium is separated from the drive motor and the cartridge is
During the discharging operation, the pressing means is moved to the information recording medium.
Moved so that it does not touch the information recording area of the body
Cartridge ejector, characterized in that the. 8. A cartridge ejecting apparatus according to claim 6, wherein said pressing means is provided near a driving motor .