JP2940754B2 - Disk unit insertion opening / closing mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insertion opening / closing mechanism for a disk drive, and more particularly to the insertion of a disk disposed on the front surface of the disk drive when an operation of storing or discharging the disk from the disk storage turntable is performed. The present invention relates to an insertion opening / closing mechanism of a disk device having a function of opening / closing an opening.

[0002]

2. Description of the Related Art Heretofore, an insertion opening / closing mechanism of a disk device of this kind has been used to insert a disk on which information is recorded directly from the disk insertion opening into the disk insertion opening of a slot-in type disk player. In addition to providing a door that can be rotated to open in response to the disk insertion operation, a lever that can be moved in conjunction with the disk insertion operation is provided, and this lever is used to open the door so that the disk can be ejected when the disk is loaded. A door stopper for holding the door is provided so that the door is not completely closed even during reproduction of the disc.

A mechanism for opening and closing the insertion opening of a disk device as described above is disclosed, for example, in Japanese Utility Model Laid-Open Publication No. 61-64654 (G11B1).
7/02).

[0004] However, the above-mentioned insertion opening / closing mechanism of the conventional disk device opens the disk insertion opening in response to a disk insertion operation of inserting a disk from the disk insertion opening. Since the door is held open even in the interior, there is a risk that another disc or foreign matter may be erroneously inserted into the disc playing section. Further, dust and dirt in the air adhere to the disc reproducing unit through the disc insertion port, causing malfunction of the reproducing mechanism, etc.
Failure to do so may cause equipment failure.

[0005] In addition, during playing the disc, the disc and the internal structure of the apparatus can be seen from the disc insertion slot, so that the quality of the apparatus is impaired.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has a rotating door that opens and closes a disk insertion / ejection port in response to a disk insertion / ejection operation behind a disk insertion / ejection port. It is another object of the present invention to provide an opening / closing mechanism for a disk drive in which a rotary door is provided with a slit corresponding to a disk loading / unloading opening at the opening position of the rotating door.

[0007]

In order to solve the above-mentioned problems, the present invention firstly provides a disk input / output port for loading / unloading a disk on a front panel of a disk device accommodating a mechanism body. This disk insertion
In a disk device insertion opening / closing mechanism for opening and closing a discharge opening according to insertion and removal of a disk, a front panel, a slit-shaped disk insertion / ejection opening formed in the front panel in a vertical direction, A rotating door disposed behind the discharge port and rotating to open and close the loading / unloading port; rotating door rotating means for driving one end of the rotating door to rotate the door; A revolving door rotation preventing means formed to prevent the revolving door from rotating beyond a predetermined angle, wherein the revolving door is formed in a vertically long cylindrical shape, and allows a disk to pass through the central portion thereof. A vertically long slit is formed and inserted into the slit to insert a disc.
When the discharge is performed, the slit is configured to not face the loading / unloading port at the closed position of the revolving door, but to face the loading / unloading port at the open position of the revolving door. Secondly, the opening and closing mechanism of the disk device is provided, wherein the rotating door rotation preventing means comprises: a stopper for regulating the rotation angle of the rotating door to approximately 60 degrees; An insertion opening / closing mechanism for a disk device, characterized in that the insertion opening / closing mechanism is constituted by an abutting piece and a projection provided on the front panel.

[0008]

The revolving door 11 is provided behind the disk loading / unloading port 2 of the front panel 1 and opens and closes the loading / unloading port.
According to the left and right sliding of the slider 210 connected to the hook 16 provided at the upper end of the revolving door, the closing operation is overwhelmed by the biasing force of the spring 18 and the opening operation is overwhelmed by the biasing force of the torsion spring 240. When the stopper 17 provided at the lower end of the door comes into contact with the projecting piece 10 of the front panel 1, the rotation angle of the door is regulated.

Further, the slit 13 of the revolving door does not reach the disc loading / unloading port 2 by the wall plate 14 of the revolving door at the closing position of the revolving door, but the disc loading / unloading port at the opening position of the revolving door. 2 and opposite.

[0010]

1 to 7 show an embodiment of a disk insertion opening / closing mechanism according to the present invention, which will be described below with reference to the drawings.

As shown in FIG. 1, a front panel 1 of a disk device has a disk loading / unloading port 2 for vertically inserting and removing a disk in the center thereof, a display unit 3 at an upper left, a viewing window 4 at an upper right, and a power ON-off. It has an OFF button 5, a play button 6, a stop button 7, an open / close button 8, and a numeric keypad 9 consisting of ten key buttons numbered from 0 to 9.

At the rear of the disk loading / unloading port 2 formed in the center of the front panel 1 in the vertical direction, a rotating door 1 for opening and closing the disk loading / unloading port 2 as shown in FIG.
1 is provided on a base chassis 30, and an insertion guide member 300 is provided behind the revolving door 11 to constitute a disk loading / unloading unit 20. Further, a disk transfer device 50 to the disk storage unit 40 is provided behind the disk storage unit 40.

The revolving door 11 is formed by injection molding of a synthetic resin. As shown in FIG. 3, the revolving door 11 has a vertically long cylindrical shape when viewed from the front panel side, and has two plate members 12 and 12 at the center.
Is provided, a vertically long slit 13 through which the disk passes is formed between the plate members 12 and 12. The rear peripheral wall of the revolving door 11 is omitted for convenience in manufacturing.

The slit 13 is slightly longer than the diameter of the disk D.

In FIGS. 3 and 4, the interval between the slits 13 is the largest in a range W of about 15 mm in the height direction at the center in the length direction of the slits, and the interval from the wide range W in the vertical direction is large. The slit width is gradually narrowed, and the upper and lower ends are formed to have a width through which the disk can pass with little room.

Further, the slit 13 is formed so that the front panel 1 side and the opening edge side on the opposite side are widened over the entire length.

Therefore, when the disk D passes through the slit 13, even if the disk rubs against the side wall of the wide portion W of the slit, it is limited to the non-signal portion on the outer periphery of the disk, and the signal recording portion of the disk is formed by the slit. It does not come into contact with the side wall, so that damage to the signal recording surface can be prevented.

Incidentally, the disc loading / unloading port 2 of the front panel 1 and the disc guiding port 3 of the insertion guide member 300 are provided.
Similarly to the slit 13 of the revolving door 11, the signal recording surface 10 is formed in a shape such that the signal recording surface of the disk does not rub against the side wall.

In the revolving door 11, shafts 15, 15 projecting from the center of the upper and lower end plates are rotatably supported by ribs (not shown) projecting from the rear surface of the front panel 1, and are shown in FIG. As described above, normally, the arc-shaped wall plate 14 is directed toward the disk input / output port 2 of the front panel 1 and the input / output port is closed.
At the time of loading / unloading of the disc, the door 13 is driven to rotate clockwise by a door opening / closing drive device 200 described later.
Is aligned with the disk loading / unloading port 2 of the front panel 1.

As shown in FIG. 4B, stoppers 17 are provided at the lower end of the revolving door 11 so as to contact the protruding piece 10 of the front panel 1 and restrict the rotation angle of the door to about 60 degrees.

As shown in FIG. 6, a hook 16 protrudes from the upper end of the revolving door 11, and a spring 18 having a weak urging force for constantly urging the door in the closing direction and a door opening / closing driving device 200 are provided on the hook. Connected.

The door opening / closing drive device 200 includes a torsion spring 240 on a slider 210 that slides horizontally along the front panel 1, and has one end of the spring extended so as to be able to abut on the hook 16 of the rotating door 11.

The slider 210 has a rack surface 220 formed in the sliding direction, and a pinion 250 meshes with the rack surface 220.

The slider 210 and the pinion 250
Is disposed on the front panel 1 side above the disc accommodating section 40 (not shown). A door opening / closing motor M1 is mounted on the disc accommodating section 40, and the pinion 250 is driven to rotate by the motor M1. 21
0 slides.

5 and 6, when the slider 210 slides to the right, one end of the torsion spring 240 on the slider 210 hits the hook 16 of the revolving door 11 and the spring 240 is compressed. The rotating door 11 is rotated clockwise by overcoming the force of the spring 18 biasing in the closing direction.
That is, it is rotated in the opening direction.

When the slider 210 slides to the left, the torsion spring 240 separates from the hook 16 of the revolving door 11 and the urging force on the revolving door 11 disappears.
The door 18 rotates counterclockwise by the force of a spring 18 that biases the door in the closing direction, and the wall plate 14 of the door 11 closes the slit 2 of the front panel 1.

Further, along the transition path of the slider 210, the door full-close detection switch SW1 and the door full-open detection switch SW
2 is provided, and when the slider 210 slides to a position where the revolving door 11 is fully closed, the protrusion 230 provided on the slider 210 operates the door fully closed detection switch SW1 to stop the door opening / closing motor M1, and , Slider 210
When the door slides to a position where the revolving door 11 is fully opened, the protrusion 230 operates the door fully open detection switch SW2 to stop the door opening / closing motor M1.

As described above, the slider 210 and the revolving door 1
1 is not connected by a rigid body and a torsion spring 2
40, the revolving door 11 is opened, and the spring 18 having a weak urging force is opened.
In order to close the revolving door 11, the revolving door 11 bites the disc even if the slider 210 slides in a state where the disc is sandwiched between the revolving door 11 and the spring 18 force acts on the revolving door 11 in the closing direction. It stops spinning in the state of being inserted, and it does not lead to destroying the disk.

On the back surface of the front panel 1, there is provided a disk biting detection switch SW3 for detecting the fully opened state of the rotating door 11 by hitting the hook 16 of the rotating door 11.

As described above, the slider 210 and the revolving door 1
1 is not connected by a rigid body and a torsion spring 2
Because it is only linked via the revolving door 1
Even when the disc is sandwiched between the doors 1, the slider 210 may slide in the closing direction of the revolving door 11 to operate the door fully closed detection switch SW1. Assuming this case, while the disk biting detection switch SW3 detects the fully opened state of the door, the next operation cannot be performed and the safety is further improved.

An insertion guide member 300 is fixedly provided near the revolving door 11 and behind the revolving door 11 so as to straddle between the base chassis 30 and the upper portion of the disk accommodating portion 40.

As shown in FIG. 7, the insertion guide member 300
An end plate 340, 3 is provided between the upper ends of the two plate members 320, 330.
40, and the rotating door 11 is connected between the plate members 320 and 330.
As in the case of the slit 13, a disk insertion guide opening 310 having a shape that does not rub against the recording surface of the disk is formed.

The plate members 320 and 330 are respectively provided with four through cutouts 350 at opposing positions. The through cutouts are not described, but the six sensors SE1 to SE4 for detecting the size and passage of the disk are omitted. Of the SEs 6, the sensors are opened corresponding to the arrangement positions of the first sensor SE1 to the fourth sensor SE4, and allow passage of sensor light.

Each sensor is constituted by a light-emitting element and a light-receiving element disposed opposite to each other with a transition path of the disk interposed therebetween. The first and second sensors are arranged vertically in a row outside the rollers 51 and 52 of the disk transfer device 50 described later. Fourth sensors SE1 to SE4 are provided to detect the size of the disk. Further, a fifth sensor SE5 and a sixth sensor SE6 are provided inside the rollers 51 and 52 of the disk transfer device 50, and detect passage of the disk.

As shown in FIG. 7, the disk delivery device 50 is disposed close to the insertion guide member 300 and is provided with a disk D.
It is provided on the base chassis 30 behind a pair of rollers 51 and 52 that convey the sheet across the base chassis 30.

The two rollers 51, 52 are provided with shafts 53, 54 projecting from the centers of the upper and lower ends.
6, the roller supporting members 55, 56
Is fixed between the base chassis 30 and the upper part of the disk accommodating portion 40.

In FIG. 7, the left roller 52 is held in a fixed position in contact with the surface of the disk passing through the center of the width of the insertion guide opening 310 of the insertion guide member 300, and the rotation driving gear 57 is attached to the lower end. ing.

The other roller 51 has a shaft 53 at the upper and lower ends and a notch 58 at the upper end of the roller support member 55 and a mating roller 52.
The two rollers are always in contact with each other by being biased by a spring 59 toward the partner roller 52.

The notch 5 of the roller support member 55
The width of the side opening 8 is smaller than the diameter of the shaft 53 to prevent the roller shaft 53 from coming off.

The roller 52 is provided with
A driving device including the discharge-side loading motor M2 and a plurality of rotation control gears is connected, and the driving device is provided on the base chassis 30.

Next, the operation of inserting and ejecting a disk according to the present invention will be described.

When the open / close button 8 is pressed when the disk D is stored in the disk storage section 40, the disk storage section 4 is pressed.
If there is no disk at 0, the door opening / closing motor M1 operates and the slider 210 is slid rightward to a position where the door full open detection switch SW2 detects. And slider 2
10 slides the torsion spring 240 on the slider 210, overcomes the spring 18 force urging the revolving door 11 in the closing direction, rotates the revolving door 11 clockwise and opens it, Loading motor M
2 operates to rotate the roller 52 in the direction of drawing the disk.

Thereafter, the disk detection sensors SE1 to SE
E6 detects that the disk D has passed through the roller 52 (that is, detects that the insertion of the disk is completed), and after a lapse of a predetermined time, in this embodiment, 0.5 seconds, the input / output side The rotation of the loading motor M2 is stopped.
At the same time, the door opening / closing motor M1 operates and the slider 210
To the left to the position where the full-closed door detection switch SW1 is detected. When the slider 210 slides, the torsion spring 24 on the slider 210 is moved.
0 is separated from the hook 16 of the revolving door 11 and the urging force on the revolving door 11 disappears, and the revolving door 11 is rotated counterclockwise and closed by the force of a spring 18 for urging the revolving door 11 in the closing direction.

When there is a disk in the disk storage section 40, the door opening / closing motor M1 is operated to slide the slider 210 to a position where the door full open detection switch SW2 detects, and the rotary door 11 is opened in the same manner as described above. The loading / unloading side loading motor M2 operates to rotate the roller 52 in the direction of ejecting the disc.

Thereafter, the disk detection sensors SE1 to SE
E6 detects that the disk D has passed the roller 52 (that is, detects that the ejection of the disk is completed), and after a lapse of a predetermined time, in this embodiment, 0.5 seconds, the input / output side The rotation of the loading motor M2 is stopped.
At the same time, the door opening / closing motor M1 is operated to slide the slider 210 to a position where the full-closed door detection switch SW1 is detected, and operates to close the revolving door 11 in the same manner as described above. When the disc catch detection switch SW3 detects that the disc D has not been taken out of the slit 2 of the first disc, the door opening / closing motor M1 is stopped and the disc catch detection switch SW3 detects that the disc D has been taken out. , The door opening / closing motor M1 is operated to continuously close the revolving door 11, and the slider 210 is slid to the position where the full-closed door detection switch SW1 is detected, and the revolving door 11 is closed as described above.

[Features of Embodiment] The disk device of the embodiment has the following excellent features.

A revolving door 1 arranged behind the disk loading / unloading port 2 of the front panel 1 for opening and closing the loading / unloading port.
1 is that the closing operation is performed by the spring 18 and the opening operation is performed by the slider 210 via the torsion spring 240. Therefore, even if the slider 210 slides in the closing direction while the disc is sandwiched in the slit 13 of the rotating door 11, The revolving door 11 does not rotate and does not damage the disk. Further, even if the slider 210 moves in the door closing direction and the fully closed movement end is detected by the fully closed door detection switch SW1, the rotation of the rotating door 1 is controlled by the disc engagement detection switch SW3.
While it is detected that 1 is in the fully opened state, the next operation cannot be performed, so that the disk can be prevented from being damaged twice.

[0048]

As described above, according to the insertion opening / closing mechanism of the disk device of the present invention, the rotating door 11 disposed behind the disk insertion / ejection opening 2 of the front panel 1 for opening and closing the insertion / ejection opening is provided. According to the left and right sliding of the slider 210 connected to the hook 16 provided at the upper end of the revolving door,
The closing operation is performed by the urging force of the spring 18, and the opening operation is performed by the torsion spring 240 rotating against the urging force of the spring 18. The amount of rotation of the revolving door is controlled by the stopper 17 provided at the lower end of the door. The rotation angle of the revolving door is regulated by contacting the protruding piece 10.

The slit 13 of the revolving door 11 does not enter the disc loading / unloading port 2 by the wall plate 14 of the revolving door at the closed position of the revolving door 11, but enters the disc loading / unloading port at the open position of the revolving door. Since the disc is opposed to and coincides with the ejection port 2, the operation of inserting and ejecting the disc can be reliably performed, and the disc insertion / ejection port is closed by the rotating door except when the disc is inserted or ejected. Through the insertion of foreign matter and malfunction of the disc player due to dust and dirt, etc.
Device failure can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a front panel and a revolving door of a disk device.

FIG. 2 is a schematic plan view showing an arrangement of a front panel, a revolving door, and the like of the disk device.

FIG. 3 is a front view of the revolving door.

4 is a cross-sectional view of the revolving door, FIG. 4A is a cross-sectional view of FIG. 3A-A, and FIG. 4B is a cross-sectional view of FIG. 3BB.

FIG. 5 is a perspective view showing a rotation drive mechanism of the revolving door.

FIG. 6 is a plan view of a rotation drive mechanism of the revolving door.

FIG. 7 is a perspective view showing a disk delivery device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front panel 2 Disc insertion / ejection opening 10 Protrusion piece 11 Rotating door 13 Slit 16 Hook 17 Stopper 18 Spring 200 Door opening / closing drive device 210 Slider 240 Torsion spring

Claims (2)

(57) [Claims] 1. A disk insertion / ejection port for loading / unloading a disk is provided on a front panel of a disk apparatus for accommodating a mechanism body, and a disk apparatus for opening / closing the disk insertion / ejection opening according to the insertion / removal of the disk. In the mouth opening / closing mechanism, a front panel, a slit-shaped disc loading / unloading port provided in the front panel in a vertical direction, and a loading / unloading port provided behind the disc loading / unloading port to open / close the loading / unloading port. A revolving door that rotates as desired, a revolving door rotating means that drives one end of the revolving door to rotate the door, and a rotation formed at the other end of the revolving door that prevents the revolving door from rotating beyond a predetermined angle. The rotating door is formed in a vertically long cylindrical shape, and a vertically long slit is formed at a center portion thereof to allow a disk to pass therethrough. When the disc is inserted and ejected, the slit does not protrude to the loading and unloading port at the closed position of the revolving door, and faces the loading and unloading port at the open position of the revolving door. An opening / closing mechanism for an insertion opening of a disk device, wherein the insertion opening / closing mechanism is configured to be aligned with each other. 2. The revolving door rotation preventing means comprises a stopper for restricting the revolving door from rotating at an angle of about 60 degrees to the revolving door, and a protruding piece provided on the front panel for abutting the stopper. 2. The opening / closing mechanism for an insertion opening of a disk device according to claim 1, wherein: