JPH05282762A - Door opening and closing device for port of inserting cartridge - Google Patents

Abstract

PURPOSE:To prevent a dust intrusion during a recording/reproducing operation by closing a door after a cartridge is inserted by a user, and to eject the car tridge by opening the door with the rotation of a lever linked with the move ment of a slider at the time of ejection. CONSTITUTION:The door 3 is rotatably supported by an external panel 1 and being energized in the normally closed direction. The slider 5 is provided with a cam 5a at a part thereof, and by the movement toward the right direction, the cartridge 2 is moved to the recording/reproducing position from the inserted position and ejected by the movement toward the left direction. One end of the lever 6 is rotatably supported by the external panel 1, and another end is slidably/rotatably supported by a pin 3a provided on the door 3. The lever 6 is provided with a driving pin 6b at the intermediate part, then the door 3 is opened by the upward movement with rotation of the lever according to the contact/slide of the cam 5a and driving pin 6b accompanying the driving of the slider 5 in the left direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device for a cartridge insertion port provided in a disk device for recording / reproducing using a disk housed in a cartridge such as a CD-ROM.

[0002]

2. Description of the Related Art In recent years, disk devices, especially CD-ROMs
In optical disc devices such as the above, dust intrusion into the device is becoming a problem. This is because the use environment of the device is no longer limited to a clean environment due to the downsizing of the device and diversification of needs. When dust adheres to the surface of the optical disk or the optical element in the signal recording / reproducing means, the amount of transmitted / reflected light of the beam for recording / reproducing decreases, and the possibility that information will not be accurately recorded / reproduced increases. The conventional door opening / closing device is described below. 6 and 7 show an outline of a conventional door opening / closing device, and FIG. 6 shows a state in which a cartridge is not mounted, and FIG.
Shows the cartridge installed in the recording / playback position. 6 and 7, 1 is an exterior panel of the apparatus main body,
1a is a cartridge insertion port, 2 is a cartridge, 3 is a door, 3a is a fulcrum of the door, and the door 3 is rotatably supported by the exterior panel 1 by the fulcrum 3a. Further, the door 3 is biased in the CCW direction in the figure by an elastic body (not shown). The operation of the door opening / closing device configured as described above will be described below. First, before the cartridge 2 is inserted in FIG. 6, the door 3 is biased by the exterior panel 1 as shown in the figure, so that dust does not enter from the cartridge insertion opening 1a. When the cartridge 2 is inserted, the door 3 is rotated in the CW direction in the figure around the fulcrum 3a, and the mounting mechanism (not shown) moves the cartridge 2 to the recording / reproducing position shown in FIG. In this configuration, as shown in FIG. 7, the door 3 is still pushed up by the cartridge 2 even after the cartridge 2 is moved to the recording / reproducing position, and there is a gap between the door 3 and the cartridge insertion opening 1a. Is occurring. This is because the door is opened by moving the cartridge 2 upward when the cartridge 2 is ejected. Therefore, in the configuration of FIGS. 6 and 7, dust will enter when the cartridge 2 is mounted.
Next, a conventional example of a configuration for solving the above problem is shown. 8 and 9 show an outline of a conventional door opening / closing device for preventing intrusion of dust. FIG. 8 shows a state in which a cartridge is not mounted, and FIG. 9 shows a cartridge in a recording / reproducing position. Indicates the state. In the reference numerals used in FIGS. 8 and 9, the same reference numerals as those used in FIGS. 6 and 7 are the same parts or parts having the same function. Reference numeral 4 denotes an external door that covers the cartridge insertion opening 1a, 4a denotes a fulcrum of the external door 4, and the external door 4 is rotatably supported by the exterior panel 1 by the fulcrum 4a and is made of an elastic body (not shown). It is biased in the CCW direction in the figure. The operation of the door opening / closing device configured as described above will be described below. First, before the cartridge 2 is inserted in FIG. 8, the door 3 and the external door 4 are biased by the exterior panel 1 as shown in the figure, and dust does not enter from the cartridge insertion opening 1a. When inserting the cartridge 2, the user first rotates the external door 4 to the position 4b, and then inserts the cartridge 2 into the cartridge insertion opening 1a. When the cartridge 2 is inserted, the door 3 is rotated about the fulcrum 3a in the CW direction in the figure, and the mounting mechanism (not shown) moves the cartridge 2 to the recording / reproducing position shown in FIG.
The outer door 4 is returned to the position shown by an elastic body. With this configuration, dust can be prevented from entering through the cartridge insertion opening 1a even in the recording / reproducing state shown in FIG.

[0003]

With the configurations shown in FIGS. 6 and 7, it is not possible to prevent dust from entering as described above. Moreover, although the configuration of FIGS. 8 and 9 can prevent the intrusion of dust, it has a problem that the user needs to perform an operation other than insertion of the cartridge. SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and a door for preventing dust from entering a recording / reproducing apparatus that uses a disk housed in a cartridge without increasing the operation procedure of the user. The purpose is to provide a switchgear.

[0004]

A door is always biased in a direction to be closed, and when a cartridge is inserted, the cartridge is inserted to open the door against the biasing force, and the door is inserted after the cartridge is inserted. Will be closed again, and a means will be provided to open the door in conjunction with the ejection operation when the cartridge is ejected.

[0005]

With the above structure, the door is closed even when recording / reproducing information, so that dust can be prevented from entering and information can be accurately recorded / reproduced. Moreover, the operation procedure of the user does not increase.

[0006]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view showing the configuration of an embodiment of the present invention, and FIG. 2 is a view (partial sectional view) viewed from the right side of FIG. For convenience of explanation, the right side in FIG. 1 is defined as the front side, the left side is defined as the rear side, and the upper side in FIGS. 1 and 2 is defined as the upper side and the lower side is defined as the lower side. 1 and 2 are diagrams in which the cartridge is not inserted. 1 and 2, 1 is an exterior panel, 1a is a cartridge insertion opening, 2 is a cartridge, 3
Is a door, 3a is a fulcrum of the door 3, and the door 3 is a fulcrum 3a.
Is rotatably supported by the exterior panel 1. The door 3 is biased in the CCW direction in the figure by an elastic body (not shown). Further, 3b indicates a pin provided near the tip of the side surface of the door 3. Reference numeral 5 denotes a slider that is driven to move the cartridge 2, and 5a denotes a cam integrally formed on the slider. The slider 5 is always urged forward by an elastic body (not shown), but is regulated to the illustrated position by a regulating member (not shown) when the cartridge 2 is not inserted. Reference numeral 6 denotes a lever for interlocking the slider 5 and the door 3, and the pin 3 is provided at one end.
The exterior panel 1 is rotatably supported by a long hole 6a engaging with b, a drive pin 6b in the middle portion, and a shaft 1b provided at the exterior panel 1 at the other end. And by turning the lever 6 in the CCW direction,
The door 3 rotates in the CW direction against the elastic body (not shown) to open the cartridge insertion opening 1a. Further, the drive pin 6b is arranged at a position where a part of the drive pin 6b can slide on the cam 5a. In the state of FIG. 1 in which the cartridge 2 is not inserted, the drive pin 6b and the cam 5a are not in contact with each other.
The operation in the above configuration is shown below. FIG. 3 shows a state in which the cartridge 2 is mounted at the recording / reproducing position 23. When the cartridge 2 is inserted from the cartridge insertion opening 1a and the cartridge 2 reaches the mounting operation start position 21, the regulation of sliding of the slider 5 is released and the slider 5 starts sliding forward from the position shown in FIG. Do. Slider 5
The cartridge 2 moves in the mounting start position 2 in conjunction with the sliding of
It moves from 1 to the recording / reproducing position 23 according to the trajectory 22 (interlocking mechanism, not shown). At this time, the slider 5 slides to the position shown in FIG. When the cartridge 2 is ejected, the slider 5 is slid backward by a driving means (not shown). The cartridge 2 is ejected from the recording / reproducing position 23 along the trajectory 24 in association with the sliding movement of the slider 5. Next, referring to FIGS. 3, 4 and 5, the cartridge 2
The opening / closing operation of the door at the time of inserting and ejecting will be explained. First, before the insertion of the cartridge 2, the door 3 is at the position 31 shown in FIG. 4 and is pressed against the external panel 1 by the elastic body (not shown) to prevent the intrusion of dust from the cartridge insertion opening 1a. There is. When the cartridge 2 is inserted, the door 3 is rotated from the position 31 to the position 32 around the fulcrum 3a. At this time, the door tip 3c is in contact with the upper side of the cartridge 2. Further, due to the rotation of the door 3, the drive pin 6b of the lever 6 moves from the position 61 to the position 62 in FIG.
Although it rotates as shown in FIG. 3, the drive pin 6b does not come into contact with the cam 5a in this section. Therefore, the rotation of the door 3 is not restricted. Next, when the cartridge 2 is inserted to the mounting operation start position 21 in FIG.
It moves to, but the state in the middle of this movement is shown in Fig. 5.
In FIG. 5, 5b indicates a horizontal cam portion of the cam 5a, and 5c indicates an inclined cam portion of the cam 5a. 4 to 5, the slider 5 is moved from the position shown in FIG.
, And the cartridge 2 moves along the trajectory 22 of FIG. 3 in conjunction with the slider 5 (interlocking mechanism, not shown). First, while the cartridge 2 is moving in the horizontal direction, the door 3 which is in contact with the upper side of the cartridge 2 at the tip portion 3c is held at the position 32 in FIG. 4, and the drive pin 6b of the lever 6 interlocking with the door 3 is also held. It is held at position 62 in FIG. Next, the cartridge 2 starts moving in the direction of arrow 25. At this time, the door 3 rotates in the direction of the arrow 33, and the door 3
The drive pin 6b of the lever 6 interlocked with is also rotated in the direction of arrow 64. In the state shown in FIG. 5, the drive pin 6b comes into contact with the horizontal cam portion 5b, and rotation of the lever 6 in the direction of the arrow 64 is restricted. Due to this regulation, the door 3 is also stopped at the position shown in FIG. After that, the cartridge 2 continues to move in the direction of the arrow 25, the contact between the upper side of the cartridge 2 and the contact portion 3c of the door 3 is released, and the cartridge 2 reaches the recording / reproducing position 23 shown in FIG. ． Further, the cam 5a continues to move in the direction of the arrow 51, the drive pin 6b slides on the horizontal cam portion 5b, and then reaches the inclined cam portion 5c. As the drive pin 6b slides on the inclined cam portion 5c, the lever 6
Rotates again in the direction of arrow 64, the door 3 interlocked with the lever 6 is released from the holding position shown in FIG. 5, and restarts to rotate in the direction of arrow 33. Return to. This completes the mounting operation of the cartridge 2.
When the cartridge 2 is ejected, the cartridge 2 operates in conjunction with the driving of the slider 5 so that the recording / reproducing position 23 shown in FIG.
5 rises to the position shown in FIG.
The following operations are performed before is raised to the position shown in FIG. When the cam 5a of the slider 5 starts moving in the direction of arrow 52, the inclined cam portion 5c and the drive pin 6b of the lever 6
Contact. When the cam 5a further moves, the drive pin 6
b slides on the inclined cam portion 5c, and as a result, the lever 6 rotates in the direction of the arrow 65, and the door 3 interlocked with the lever 6 also resists the bias of the elastic body (not shown). Rotate in the direction of arrow 34. After that, the drive pin 6b slides on the horizontal cam portion 5b, and the door 3 is held at the position shown in FIG. After the above state, the cartridge 2 is lifted to the position shown in FIG. 5, and the parts are in the state shown in FIG. From the state of FIG.
The cartridge 2 moves according to the arrow 26 and the locus 24 in FIG. 3, and the door 3 that contacts the upper side of the cartridge 2 at the tip 3c rotates to the position 32 in FIG. Also, the slider 5
After sliding to the position shown in FIGS. 1 and 4, the sliding is stopped by a restricting means (not shown). After that, when the user pulls out the cartridge 2 from the cartridge insertion opening 1a, the door 3 is rotated from the position 32 to the position 31 in FIG. 4 by the elastic body (not shown). With the above, the discharging operation is completed.

[0007]

According to the above configuration of the present invention, since the door is closed when the cartridge is not inserted and when the information is recorded / reproduced by the insertion of the cartridge, dust is not generated. Prevent intrusion and record information accurately /
Can be played. In addition, the cartridge mounting /
The procedure of discharge operation does not increase.

[Brief description of drawings]

FIG. 1 is a side sectional view of a door opening / closing device for a cartridge insertion opening according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the same embodiment as seen from the front (right side in FIG. 1).

FIG. 3 is a side sectional view when the cartridge of the embodiment is mounted in a recording / reproducing position.

FIG. 4 is a side sectional view of the same embodiment when a cartridge is inserted.

FIG. 5 is a side sectional view in the middle of the operation of the cartridge mounting operation and the cartridge discharging operation of the embodiment.

FIG. 6 is a side view of an example of a conventional door opening / closing device for a cartridge insertion opening.

FIG. 7 is a side view when the cartridge of the conventional example is mounted in a recording / reproducing position.

FIG. 8 is a side view of another example of a conventional door opening / closing device for a cartridge insertion opening.

FIG. 9 is a side view when the cartridge of the conventional example is mounted in a recording / reproducing position.

[Explanation of symbols]

 1 Exterior Panel 1a Cartridge Insertion Port 1b Shaft 2 Cartridge 3 Door 3a Support Point 3b Pin 3c Door Tip Part 4 External Door (Conventional Configuration Example) 4a Support Point (Conventional Configuration Example) 5 Slider 5a Cam 5b Horizontal Cam Part 5c Inclined Cam Part 6 Lever 6a long hole 6b drive pin

Claims (1)

[Claims] 1. An insertion opening formed in an apparatus main body for inserting and ejecting a cartridge accommodating a disk, a door having one end rotatably supported by the apparatus main body, and the door being always the cartridge insertion opening. Means for urging the cartridge from the inner side, an insertion / ejection position for receiving or ejecting the cartridge inserted from the cartridge insertion port, and recording information to or from the disc And a slider that reversibly moves between a recording / reproducing position for reproducing data, one end rotatably supported by the device body, and the other end engaged with the door. Along with the lever that opens the door, the slider engages with the arm in the process of moving the slider from the recording / reproducing position to the inserting / discharging position, and the arm opens the door. Cartridge insertion opening of the door lock device and a cam formed in a part of the slider so occupied is not turned in that direction.