JPH052811A - Disk recording and reproducing device - Google Patents

Abstract

PURPOSE:To prevent a disk from being damaged when the disk is ejected during rotation by providing a solenoid interruping the transmission of an ejection mechanism. CONSTITUTION:A tray 105 is locked by sliding the tray 105 with a manual operation and by fitting a slide chassis 104 in a pushing lever 120. An iron piece 140 on a lock lever 138 is made to be attracted by a solenoid 143 by sliding the lever 138 against a spring 132 by the sliding of the tray 105. When an ejecting lever 130 is pushed with the manual operation by the advancement of a slide lever 133 by the spring 132, a switch 138 is turned on and the rotation of a disk 115 is stopped by the instruction of a microcomputer. Next, the solenoid 143 is energized, the attraction is removed, the locking lever 138 is advanced by a spring 139 and a slide chassis 108 is moved against a spring 135. Funther, when the lever 130 is pushed, the tray 105 is ejected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc recording / reproducing apparatus which is suitable for a CD player, for example, and which prevents the disc from being scratched when the disc is ejected while rotating.

[0002]

2. Description of the Related Art Conventionally, as a disk recording / reproducing apparatus, those shown in FIGS. 11 to 16 are known.

In these figures, reference numeral 1 denotes a main chassis, and arrows A and B are provided on the main chassis 1 via a tray holder (A) 2, a tray holder (B) 3 and a tray holder (C) 4. A tray 5 that is movable in the direction is arranged. The tray 5 has a sub-tray 7 which is pressed in the direction of arrow C by a spring 6. The main chassis 1 has a guide groove 10 for guiding the protrusion 9 of the slide chassis 8, and the spring 11 presses the slide chassis 8 in the direction of arrow B. The projection 13 of the slide chassis 8 is inserted into the guide groove 14 of the clamper plate 12 whose movement is restricted by the tray holder (C) 4 in the arrow C and D directions. Clamper plate 1
A clamper 16 containing a magnetizing member for pressing the disk 15 is rotatably attached to the disk 2, and a protrusion 18 is provided so as to press the protrusion 17 of the sub-tray 7. The main chassis 1 has a shaft 1
A push lever 20 which is rotatable by 9 is pressed by a spring 21 in the direction of arrow F. The protrusion 22 of the slide chassis 1 can restrict the rotational position of the bush lever 20, and the push lever 20 can also restrict the slide chassis 8 from returning by the spring 11. A roller 23 is attached to the tip of the push lever 20, and the tray 5 can be pushed out by the force of the spring 21. 24 indicates a turntable,
The turntable 24 is connected to a motor 25 attached to the melody chassis 1, and the clamper 1
A magnet is inserted in the contact surface with 6. Further, the disk 15 carried by the tray 5 is driven in the direction of arrow E by a predetermined rotation. Reference numeral 26 denotes a laser pickup for recording / reproducing the disc 15. The laser pickup 26 has a shaft 27 arranged in parallel to the main chassis 1 by a shaft holder 28.
5 are arranged so as to be reciprocable in the radial direction. A power transmission device (not shown) is provided at one end of the laser pickup 26, and the disc 1 is driven by a motor (not shown).
5 can be reciprocally driven in the radial direction.

This disc recording / reproducing apparatus operates as follows.

When the disk 15 is placed on the tray and the tray 5 is pushed by hand in the direction of the arrow A as shown in FIG. 11, the tray 5 is located near the roller 23 of the push lever 20 and the tray 5 is further moved. When pushed, the push lever 20 rotates in the direction of arrow E, and when the disc 15 comes directly above the turntable 24, the push lever 20 and the projection 22 of the slide chassis 8 are fitted to each other as shown in FIG. The slide chassis 8 is disengaged and is moved in the direction of arrow B by the spring 11. Protrusion 1 of slide chassis 8
Due to the movement of 3, the clamper plate 12, which has floated the regulation of the tray holder 4, moves in the direction of arrow D, as shown in FIGS. 12 and 15. The movement of the clamper plate 12 is shown in FIG.
, The disk 15 is rotatably pressed against the turntable 24 by the clamper 16, and the protrusion 18
Pushes the protrusion 17 of the sub-tray 7 in the direction of arrow D,
It is not in contact with the disk 15. After that, the turntable 24 is driven by the motor 25, and the laser pickup 26 is moved along the shaft 27 in the radial direction of the disk 15 to record / reproduce the disc 15.

Next, when the disk 15 is taken out, the pressing portion 8A of the slide chassis 8 is pressed to move the disk 15 as shown in FIG.
As shown in FIG. 3, the protrusion 13 moves the clamper plate 12 in the direction of the arrow C along the guide groove 14 of the clamper plate 12. As the clamper plate 12 is moved, as shown in FIG. 13, the clamper 16 holding the disk 15 on the turntable 24 is lifted, and the slide chassis 18 holding the protrusion 17 of the subtray 7 is released, so that the subtray 7 is The spring 6 underneath it moves in the direction of arrow C with the disk 15 still mounted. When the slide chassis 8 is further pushed, as shown in FIG. 11 and FIG. 12, the protrusion 22 that regulates the rotation of the push laser 20 is released, and the push lever 20 starts to rotate by the spring 21. The rotation of the push lever 20 causes the roller 2
The tray 5, which has been in contact with the sheet through the sheet 3, is moved in the direction of arrow B. The tray 5 can only be ejected halfway, so pull out the disc 15 by hand in the direction of the arrow.

[0007]

In the case of such a disc recording / reproducing apparatus, the disc 15 can be taken out as described above by pushing the slide chassis 8 even while the disc 15 is rotating and recording / reproducing. However, since the disc 15 keeps rotating and comes off the turntable 24 and comes into contact with the sub-tray 7, the disc 15 and the sub-tray 7 rub against each other, scratching the signal surface of the disc 15, and the reliability of the recording and reproduction of the disc 15. The sex was low.

The present invention has been made to solve the above problems, and an object of the present invention is to prevent the disc from being scratched while being conveyed while rotating, and having high reliability in recording and reproducing the disc. It is to provide a disk recording / reproducing apparatus.

[0009]

DISCLOSURE OF THE INVENTION A disc recording / reproducing apparatus according to the present invention comprises a tray slidably mounted by a tray holder provided on a chassis, and a reciprocating movement by a first spring which is interlocked with the tray. A biased lock lever, a solenoid configured to attract an iron piece provided on the lock lever when the tray is loaded to transmit the eject mechanism, and an eject lever biased by a second spring to return. A slide lever biased by a third spring on the eject lever, a slide chassis that slides in conjunction with the eject lever via the slide lever, and a slide chassis that is fitted to the slide chassis. 4 Push lever that pushes out the tray by spring, first switch that is turned on when the tray loading is completed, and rotation of the motor Please, those having a microcomputer performing electrical manipulation, such as a solenoid on-off and a second switch that instructs the microcomputer is turned on by pushing the eject lever.

[0010]

[Function] The tray is manually slid to lock the tray by fitting the slide chassis and the push lever, and the sliding of the tray causes the lock lever to slide against the second spring. When the iron piece is attracted by the solenoid and the slide lever is returned by the second spring, the eject lever is manually pushed, the second switch is turned on, the rotation of the disk is stopped by the instruction of the microcomputer, and then the solenoid is turned on. The power is turned on to release the attraction, and the first spring causes the lock lever to return to move the slide chassis against the third spring. Further, when the eject lever is pushed again by manual operation, the force is transmitted to the slide chassis, the slide chassis and the push lever are disengaged, and the tray is ejected.

[0011]

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

1 to 10 show a disk recording / reproducing apparatus according to an embodiment of the present invention. In these drawings, reference numeral 101 denotes an in-chassis, and the main chassis 101 includes a tray holder (A) 102, a tray holder (B) 1031, and a tray holder (C) 1.
Tray 10 movable in the directions of arrows A and B via 04
5 are arranged. Reference numeral 129 is a first switch which is turned on when loading of the tray 105 is completed. The tray 105 has a sub-tray 107 that is pressed by a spring 106 in the direction of arrow C. Main chassis 10
1 has a guide groove 110 for guiding the protrusion 109 of the slide chassis 108, and the slide chassis 108 is pressed by the spring 111 in the arrow B direction. The protrusion 113 of the slide chassis 108 is inserted into the guide groove 114 of the clamper plate 112, the movement of which is restricted in the arrow C and D directions by the tray holder (C) 104. A clamper 116 containing a magnetizing member for pressing the disk 115 is rotatably attached to the clamper plate 112, and the protrusion 1 of the sub-tray 107 is attached.
A protrusion 118 arranged to hold 17 is provided. A push lever 120, which is rotatable by a shaft 119, is pressed against the main chassis 101 by a fourth spring 121 in the arrow F direction. The protrusion 122 of the slide chassis 101 can restrict the rotational position of the push lever 120, and the push lever 12 can also restrict the slide chassis 108 from returning by the spring 111. Push lever 120
The roller 123 is attached to the tip of the
The tray 105 can be pushed out by the force of 21.
Reference numeral 124 indicates a turntable, and this turntable 1
24 is a motor 1 attached to the main chassis 101
25, and a magnet is inserted in the contact surface with the clamper 116. Also, the turntable 124
The disk 115 carried by the tray 105 is driven in the direction of arrow E by a predetermined rotation. 12
Reference numeral 6 denotes a laser pickup for recording / reproducing the disc 115. The laser pickup 126 has a shaft 127 arranged in parallel by a shaft holder 128 on the main chassis 101 so as to be reciprocally movable in the radial direction of the disc 115. .. Laser pickup 12
A power transmission device (not shown) is provided at one end of 6, and a reciprocating drive in the radial direction of the disk 115 is possible by a motor (not shown).

Projection portion 109 of slide chassis 108
Is guided by the guide groove 110 of the main chassis 101 and protrudes to the back side of the main chassis 101. On the back side thereof, as shown in FIGS.
0 is restricted from moving in the directions of arrows A and B by the shaft 131, and is pressed in the direction of arrow B by the second spring 132. When the eject lever 130 moves in the direction of arrow A, as shown in FIG. 9, the second switch 136 attached to the main chassis 101 is turned on. A slide lever 133 is restricted in its movement in the arrow G and H directions by the shaft 134 of the eject lever 130 and is pressed in the arrow G direction by the third spring 135, as shown in FIGS. Lock lever 1
38 is a main chassis 1 as shown in FIGS.
The movement of the shaft 137 of No. 01 is restricted in the directions G and H, and the first spring 139 is pressed in the direction of arrow H. The lock lever 138 has a solenoid 14
A roller 142 that passes through the iron piece 140 of No. 3 and the cam groove 141 of the tray 105 is provided. The solenoid 143 is attached to the main chassis 101 and has an iron piece 140.
Can be held, and the holding of the iron piece 140 is released when the solenoite 143 is energized.
This disc recording / reproducing apparatus operates as described below.

As shown in FIG. 7, when the tray 105 on which the disk 115 is placed is pushed by hand in the direction of the arrow G, the tray 105 will reach the roller 12 of the push lever 120 from the middle.
3, when the tray 105 is further pushed, as shown in FIG. 4, the push lever 120 and the projection 122 of the slide chassis 108 are disengaged, and the slide chassis 108 is moved in the direction of arrow B by the spring 111. ..
By moving the protrusion 113 of the slide chassis 108,
As shown in FIG. 5, the clamper plate 112 regulated by the tray holder 104 moves in the direction of arrow D. The movement of the clamper plate 112 rotatably presses the disk 115 against the turntable 124 by the clamper 116, and the projection 118 presses the projection 117 of the sub-tray 107 in the direction of the arrow D to bring it out of contact with the disk 115.

While the tray 105 is being manually pushed in the direction of arrow A, as shown in FIG. 8, the roller 142 of the lock lever 138 moves in the direction of arrow G along the cam groove 141 provided in the tray 105. To go. Then, as shown in FIG. 9, the iron piece 140 is attracted to the solenoid 143, and the lock lever 138 is held at that position. Then, as shown in FIGS. 1 to 3, the slide lever 133 is
Is moved in the direction of arrow G by the third spring 135, and the slide lever 133 and the protrusion 10 of the slide chassis 108 are moved.
9 is disengaged. Then, the tray 105 turns on the first switch 129 to complete the loading. After that, the turntable 124 is driven by the motor 125,
The laser pickup 126 is moved along the shaft 127 in the radial direction of the disk 115 to record / reproduce the disk 115.

Next, the case where the disk 115 is taken out will be described.

As shown in FIG. 9, the eject lever 13
The second switch 136 is turned on by pressing 0, and the rotation of the motor 125 is braked and the rotation of the disk 115 is stopped in accordance with a command from the microcomputer. If the microcomputer determines that the rotation of the disk 115 has stopped, the solenoid 143 is energized to release the attraction of the iron piece 140 by the solenoid 143. Then, as shown in FIG. 10, the lock lever 139 is moved in the arrow H direction by the first spring 139 to push the slide lever 133 in the arrow H direction. After this operation is completed, the force pushing the eject lever 130 is transmitted to the slide lever 133, and the protrusion 109 causes the slide chassis 108 to move.
It is transmitted to and it is possible to move the eject. When the eject lever 130 is pushed again, as shown in FIG. 5, the force is transmitted to the slide lever 133, the protrusion 109, and the slide chassis 108, and the protrusion 113 causes the clamp plate 11 to move.
2 along the guide groove 114 of the second arrow C
Move in the direction. By moving the clamper 112, the disk 115 is moved to the turntable 12 as shown in FIG.
Lift the clamper 116 that was held at 4, and
Since the slide chassis 118 holding the projection 117 of the sub-tray 107 is released, the sub-tray 107 is
As shown in FIG. 2, the spring 106 located therebelow moves in the direction of arrow C while the disk 115 is being placed. When the slide chassis 108 is further pushed, the protrusion 122 that regulates the rotation of the push lever 120 is released, and the push lever 120 starts to rotate by the spring 121. By the rotation of the push lever 120, as shown in FIGS. 1 and 4, the tray 105, which has been in contact with the roller 123 via the roller 123, is moved in the direction of the arrow B until the tray 10 is reached.
Since 5 does not come out, pull in the direction of arrow B with your hand
Take out 5.

[0018]

As described above, according to the present invention, when the disc is rotating, the transmission of the eject mechanism is blocked so that the disc cannot be ejected by the solenoid, and the microcomputer determines whether or not the disc is rotating. Therefore, by preventing the disc from being ejected while rotating in the tray, it is possible to prevent the disc from being scratched, and it is possible to provide high reliability in recording and reproducing the disc. Further, since the solenoid is attracted by the movement of the tray, the tray can be ejected by a single ejecting operation when an adsorption error occurs. Further, when the power is off, the disc in the loaded tray cannot be taken out, which prevents the theft.

[Brief description of drawings]

FIG. 1 is a front view of a disk recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a cross-sectional view of FIG.

FIG. 4 is a front view showing a disc storage state.

FIG. 5 is a side view of FIG.

6 is a cross-sectional view of FIG.

FIG. 7 is an operation diagram of a recording / reproducing apparatus for a disc according to an embodiment of the present invention.

FIG. 8 is an operation diagram of a disk recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 9 is an operation diagram of a disc recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 10 is an operation diagram of a disc recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 11 is a front view of a conventional disc recording / reproducing apparatus.

FIG. 12 is a side view of FIG. 11.

13 is a cross-sectional view of FIG.

FIG. 14 is a front view of a conventional disc recording / reproducing apparatus.

FIG. 15 is a side view of FIG.

16 is a cross-sectional view of FIG.

[Explanation of Codes] 101 ... Main shaft 102 ... Tray holder (A) 103 ... Tray holder (B) 104 ... Tray holder (C) 105 ... Tray 108 ... Slide chassis 115 … Disc 116 ……… Clamper 120 ……… Push lever 121 ……… Fourth spring 129 ……… First switch 130 ……… Eject lever 132 ……… Second spring 133 ……… Slide lever 135… ...... Third spring 136 ………… Second switch 138 ………… Lock lever 139 ………… First spring 140 ………… Steel piece of solenoid 143 ………… Solenoid

Claims (1)

Claims: 1. A tray mounted slidably by a tray holder provided on a chassis, a lock lever which is interlocked with the tray and biased by a first spring to return, and A solenoid configured to adsorb an iron piece provided on the lock lever at the time of tray loading to transmit the eject mechanism, an eject lever biased by a second spring to return, and an eject lever on the eject lever. A slide lever biased by three springs, a slide chassis that slides in conjunction with the eject lever via the slide lever, and a push lever that fits with the slide chassis and pushes out the tray by the fourth spring. And a first switch that is turned on when the tray loading is completed, a motor rotation control, a solenoid on / off, and the like. A microcomputer for performing vapor manipulations, the disk recording and reproducing apparatus characterized by comprising a second switch that instructs the turned-microcomputer by pushing the eject lever.