KR19990042116A - Tray eject unit of disk drive - Google Patents

Abstract

The present invention relates to a tray ejection apparatus of a disk drive. The present invention uses a sled motor 25 for transporting the pickup unit 20 as an ejection position driving source of the tray T. The lead screw is generated when the pickup unit 20 is moved to the ejection position and stops. Using the relative movement with respect to the pickup unit 20 of (22) to release the fastening state of the tray (T) to be ejected. Employing the present invention as described above does not use a separate drive source for ejecting the tray (T) it is possible to ensure more free space on the tray (T) has the advantage of reducing the manufacturing cost.

Description

Tray eject unit of disk drive

The present invention relates to a disk drive, and more particularly, to a tray ejection apparatus of a disk drive to eject a tray using a driving force of a drive source for transporting a pickup unit.

1 shows a schematic configuration of a tray ejecting apparatus of a disk drive according to the prior art. As shown in the figure, the solenoid 1 as a driving source is mounted on the lower surface of the tray T on which the disk is mounted. In addition, a driving plate 3 driven by the driving of the solenoid 1 is provided.

The driving plate 3 is elastically supported in the lower direction of the drawing by the spring 4, and one side thereof is connected to the mover 2 of the solenoid 1. In addition, the driving plate 3 includes rotational slots 3A and 3B for rotation with the connection lever 6 and the locking lever 10 to be described below.

A connecting lever 6 driven by the drive plate 3 is rotatably installed around the hinge shaft 6H on the lower surface of the tray T.

The connecting lever 6 is elastically supported by a spring 7 so as to rotate clockwise about the hinge axis 6H. One end of the connecting lever 6 has a driving pin 8 for driving the locking lever 10. The connecting lever 6 is formed with a pivoting protrusion 9 located at the pivoting slot 3B of the drive plate 3.

A locking lever 10 is rotatably installed around the hinge shaft 6H on the bottom surface of the tray T and driven by the connecting lever 6. The locking lever 10 is elastically supported to rotate in a clockwise direction about the hinge shaft 6H by a spring 7.

In addition, an interlocking rib 11 for interlocking with the driving pin 8 of the connecting lever 6 is formed at one end of the locking lever 10. The hinge shaft 10H of the locking lever 10 is located in the rotation slot 10H of the drive plate 3.

In addition, a return lever 13 for returning the levers 6 and 10 driven by the solenoid 1 to the lower surface of the tray T adjacent to the locking lever 10 is centered on the hinge shaft 13H. It is rotatably installed. The return lever 13 is also elastically supported to rotate counterclockwise by a spring (not shown).

On the other hand, when the tray T is once accommodated inside the disc drive, a stopper 15 is formed in the case C to prevent the tray T from protruding to the outside. In addition, the tray T is elastically supported in a direction projecting out of the case C by the discharge spring 17.

In the figure, reference numeral 19 is a support protrusion formed on the lower surface of the tray T to support one end of each of the springs 12 and 17.

It will be described that the tray ejection apparatus of the disk drive according to the prior art having the configuration as described above is operated.

When an eject switch (not shown) is pressed, a signal for operating the solenoid 1 is transmitted through a flexible flat cable (hereinafter referred to as 'FPC') (not shown).

By means of the signal, the mover 2 of the solenoid 1 is moved upward in the figure, and the drive plate 3 connected to the mover 2 is moved upward in the figure. In this case, the connecting lever 6 is anticlockwise about the hinge shaft 6H by the relative movement of the rotating slot 3B of the driving plate 3 and the rotating protrusion 9 of the connecting lever 6. Is rotated in the direction.

Therefore, the driving pin 8 of the connecting lever 6H is guided along the driving rib 11 of the locking lever 10 while the locking lever 10 rotates counterclockwise about the hinge shaft 10H. Done. When the locking lever 10 is released from the stopper 15 by the rotation of the locking lever 10, the tray T is fixed to the outside of the case C by the elastic force of the discharge spring 17. It protrudes about.

As described above, when the tray T protrudes from the case C to a certain degree, the user may pull the tray T with his hand and completely protrude the outside of the case C to perform a subsequent operation.

On the other hand, by fully protruding the tray (T) to the outside of the case (C), the return lever 13 is operated to return the solenoid (1).

This will be described in detail as follows.

When the tray T continues to move relative to the case C, the left end of the return lever 13 is caught by the stopper 15 to rotate clockwise about the hinge shaft 13H. do. When the return lever 13 rotates as described above, the right end of the return lever 13 pushes the driving plate 10 so that the mover 2 of the solenoid 1 enters the solenoid 1. do.

On the contrary, the locking lever 10 is caught by the stopper 15 by the operation of pushing the tray T into the case C. Once the disk is mounted on the tray T or the mounted disk is taken out of the tray T, the tray L is pushed into the case C, and the locking lever 10 stops the stopper 15. The stopper 15 is guided along one side of the locking lever 10 while being slightly rotated counterclockwise while being pushed by the spring 12 while overcoming the elastic force of the spring 12.

When the tray T is continuously pushed in such a state and the front end of the locking lever 10 passes through the stopper 15, the locking lever 10 is hinged by the elastic force of the spring 12. ) Is rotated in a clockwise direction so that its front end is caught inside the stopper 15. In this case, the tray T is stored in the case C. As shown in FIG.

However, as described above, the tray ejecting apparatus of the disk drive according to the prior art has the following problems.

First, the solenoid 1, the driving plate 3, the connecting member 6, the locking member 10 and the return member 13 are concentrated on the lower surface of the tray T, which is a movable part, and thus the movable part has a structure. There is a problem that the space is lost because of the complexity. As the components are concentrated on the lower surface of the tray T as described above, the assembly process of the tray T is also complicated.

In addition, since the solenoid 1, which is a separate driving source, is required for ejecting the tray T, and an FPC for transmitting the driving signal of the solenoid 1 is required, many parts are used. There is this.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to discharge the tray using the driving force of the driving source for transporting the pickup unit without using a separate driving source.

Another object of the present invention is to be able to perform the tray ejection with a simple structure that can secure more free space.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic block diagram showing the configuration of a tray ejecting apparatus for a disk drive according to the prior art.

Figure 2 is a schematic configuration diagram showing the configuration of the tray ejection apparatus of the disk drive according to the present invention.

Figure 3 is an operational state showing that the tray ejection apparatus of the disk drive according to the present invention is operated.

4 is an explanatory diagram for explaining the operation principle of the tray ejecting apparatus of the disk drive according to the present invention;

Figure 5 is a front sectional view schematically showing the relationship between the tray and the case in a typical disk drive.

<Description of Symbols for Main Parts of Drawings>

20: Pickup Unit 21: Rec

22: lead screw 23: spring

24: support 25: sled motor

26: drive gear 27: driven gear

28: pickup stopper 29: spindle motor

30: drive disk 40: release lever

41: hinge axis 50: release bar

60: fastening plate 61: hinge axis

62: spring 63: fastening protrusion

70: stopper 71: guide surface

72: fastening surface 80: discharge spring

In order to achieve the object of the present invention as described above, a drive source for driving a pickup unit, pickup transfer means for transferring the pickup unit by the driving force of the drive source, and the pickup generated at the moment when the pickup unit stops at the ejection position Provided is a tray ejecting apparatus for a disc drive, comprising an ejecting portion which is operated by a relative movement between the conveying means and the pickup unit to eject the tray.

The pickup transport means includes a lead screw driven by the driving source and supported at one end by a finger member, and a rack portion fixedly installed at one side of the pickup unit and engaged with the lead screw to move in accordance with the rotation of the lead screw. The ejector is driven by the drive source, is driven integrally with the lead screw for transferring the pickup unit, the release means driven by the drive member, and the tray are fastened by the release means. It is composed of a fastening member for releasing the fastening state of the tray.

According to the tray ejection apparatus of the disk drive according to the present invention having such a configuration, it is possible to eject the tray with a simpler configuration without using a separate driving source.

Hereinafter, a preferred embodiment of a tray ejecting apparatus of a disk drive according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic block diagram showing the configuration of the tray ejection apparatus of the disk drive according to the present invention, Figure 3 is an operational state diagram showing the operation of the tray ejection apparatus of the disk drive according to the present invention, Figure 4 is It is explanatory drawing explaining the operation principle of the tray ejection apparatus of a disk drive. FIG. 5 is a front sectional view schematically showing a relationship between a tray and a case in a general disk drive.

As shown in these figures, the sled motor 25 is provided on the deck (not shown) fixed to the tray T. A drive gear 26 is provided on the rotating shaft of the sled motor 25, and the drive gear 26 is engaged with a driven gear 27 which is coaxially rotated with the lead screw 22.

The lead screw 27 is for transferring the pick-up unit 20 and is installed through one side of the pick-up unit 20 and is engaged with the rack 21 fixed to the pick-up unit 20.

One end of the lead screw 22 is supported by a support 24 provided on the deck, and the other end is supported on the deck by a spring 23.

One side of the lead screw 22 is provided with a drive disk 30 integrally. The drive disk 30 operates the release lever 40 to be described below while moving together with the movement of the lead screw 22 generated at the moment when the pickup unit 20 stops at the ejection position.

The release lever 400 is installed on the tray T so as to be rotatable about the hinge shaft 41. Such a release lever 40 releases the moving force of the drive disc 30 to be described below. Serves as a delivery to (50).

The release bar 50 is installed on the tray T and is linearly driven by the release lever 40. It is preferable that a configuration for guiding the linear movement of the release bar 50 is provided on the tray T.

The fastening plate 60 is rotatably installed around the hinge shaft 61 on one side of the tray T. The fastening plate 60 is elastically supported to rotate in a counterclockwise direction about the hinge shaft 61 by a spring 62. And on the fastening plate 60, a fastening protrusion 63 is fastened to the stopper 70 to be described below is formed.

On the other hand, one side of the case (C) is provided with a stopper (70) for fastening the fastening protrusions (63) so that the tray (T) is located inside the case (C).

Here, the stopper 70 has a predetermined distance from one surface of the fastening plate 60 on which the fastening protrusion 63 is formed so as not to interfere with the fastening plate 60 when the tray T is moved. It is formed to.

And the tray (T) is elastically supported to be pushed in the outer direction of the case (C) by the discharge spring (80). One end of the discharge spring 80 is supported by the case C and the other end of the discharge spring 80 is supported by the tray T, respectively.

In the drawing, reference numeral 28 denotes a pickup stopper, and 29 denotes a spindle motor.

It will be described in detail below the operation of the present embodiment having the configuration as described above.

First, when the eject button (not shown) is pressed, the pickup unit 20 is moved to the eject position by the sled motor 25. That is, the pick-up unit 20 is moved by the link screw 22 and the leg 21 being rotated by the drive of the sled motor 25.

The ejection position here is the position of the pickup unit 20 on the deck when the tray T is ejected.

When the pick-up unit 20 reaches the eject position and is stopped by the pick-up stopper 28 and can no longer move, the pick-up unit 20 is connected to the rack 21 between the lead screw 22 and the rack 21. The force Fv acted for the movement of the pick-up unit 20 acts in the opposite direction momentarily and becomes the force for moving the lead screw 22.

In this way, when the force Fv acting for the movement of the leg 21 acts as a force for moving the lead screw 22 by stopping the pickup unit 20, the lead screw 22 moves. do. This is because the pick-up unit 20 stops at the eject position and can no longer be moved, whereas the lead screw 22 is supported by one end of the spring 23 so as to be moved while compressing the spring 23. Because it can.

Accordingly, the lead screw 22 moves upwards to the arrow U of FIG. 4 while compressing the spring 23 and then returns to its original position by the restoring force of the spring 23. By the movement of the lead screw 22, the drive disk 30 is integrally moved in the same direction.

Accordingly, the drive disk 30 rotates the release lever 40 counterclockwise about the hinge axis 41, and the release lever 40 pushes the release bar 50.

When the release bar 50 is moved as described above, the fastening plate 60 is rotated counterclockwise about the hinge shaft 61 by the release bar 50. When the fastening plate 60 rotates as described above, the fastening protrusion 63 formed on the fastening plate 60 is separated from the fastening surface 72 of the stopper 70.

When the fastening protrusion 63 is separated from the stopper 70 as described above, the tray T is discharged to the outside of the case C by a restoring force of the discharge spring 60. In this state, the user replaces or removes the disk while the tray T is taken out of the case C.

Then, after replacing or removing the disk, the process of storing the tray T into the case C is as follows.

When the tray (T) is pushed into the case (C), while the tray (T) is moved, the fastening protrusion (63) of the fastening plate (60) is guided along the guide surface (71) of the stopper (70). The fastening plate 60 is rotated about the hinge shaft 61.

Here, when the tray T is continuously pushed into the case C and the fastening protrusion 63 passes through the end of the guide surface 71, the fastening plate 60 is the elastic force of the spring 62. By the clockwise rotation around the hinge shaft 61 by the fastening projection 63 is fastened to the fastening surface 72 of the stopper 70. In this case, the tray T is fastened in a state in which the discharge spring 80 is compressed in the case C.

The tray ejecting device of the disk drive according to the present invention as described in detail above uses the relative movement of the lead screw relative to the pick-up unit at the moment when the pick-up unit stops at the eject position for ejecting the tray, so that no separate drive source is required. As a result, a relatively large amount of free space is secured in the tray and manufacturing cost is reduced.

Claims (3)

A drive source for driving a pickup unit, pickup transfer means for transferring the pickup unit by the driving force of the drive source, and relative movement between the pickup transfer means and the pickup unit generated at the moment when the pickup unit stops at the ejection position. And an ejecting unit configured to eject the tray. The method of claim 1, wherein the pick-up transfer means is driven by the drive source and one end is supported by the holding member, and fixed to one side of the pickup unit and engaged with the lead screw to move in accordance with the rotation of the lead screw Tray ejection apparatus of the disk drive, characterized in that it comprises a rack portion. According to claim 1 or claim 2, wherein the ejection unit is driven by the drive source and the drive member which is integrally moved with the lead screw for transporting the pickup unit, the release means driven by the drive member and fastening the tray And a fastening member which is driven by the release means to release the fastened state of the tray.