KR20000009685A - Disk eject device of disk drive - Google Patents

Abstract

PURPOSE: A disk eject device of a disk drive is provided to eject a disk utilizing transfer power for transferring a pickup. CONSTITUTION: The device comprises a tray, a coupler, a release member, and a pickup transfer member. The disk is putted upon the tray and moves, the coupler couples the tray in a set, the release member releases coupling of the coupler to eject the tray from the set, and the pickup transfer member transfers the pickup and is moved by the pickup in an eject section to drive the release member, wherein driving source drives the pickup transfer member of which a diameter of an operation section is different from that of the eject section.

Description

Disk eject unit of disk drive

The present invention relates to a disc drive, and more particularly, to a disc ejection apparatus of a disc drive for ejecting a disc by using the relative movement of the lead screw generated at the moment when the pickup unit is moved to the eject position and stopped.

1 shows a schematic configuration of a disk ejecting apparatus of a disk drive according to the prior art. As shown in the figure, the solenoid 1 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 solenoid 1 is provided, which is elastically supported by a spring 4, one side of which 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 connecting lever 6 and the locking lever 10 to be described below.

A connecting lever 6 driven by the driving 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.

On the other hand, a driving pin 8 for driving the locking lever 10 is formed at one end of the connecting lever 6. 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 10H on the bottom surface of the tray T, and is driven by the connecting lever 6. The locking lever 10 is elastically supported by a spring 7 to rotate clockwise about the hinge shaft 10H. 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 3A 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 rotatably installed about the hinge shaft 13H. The return lever 13 is also elastically supported to rotate counterclockwise by a spring (not shown).

On the other hand, the tray T is elastically supported in a direction projecting out of the case (C) by the discharge spring (17). Reference numeral 15 denotes a stopper for preventing the tray T from protruding to the outside when the tray T is once housed in the disc driver, and 19 is formed on the lower surface of the tray T to form the springs 12 and 17. One end of each support is a support projection.

In the conventional disk ejection apparatus, when an eject command is given, the solenoid 1 is operated to move the mover 2 upward of the drawing, and the drive plate 3 connected to the mover 2. They are moved together upwards in the figure. In this case, the connecting lever 6 is half-centered 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. Rotate clockwise.

Therefore, the driving pin 8 of the connecting lever 6 is guided along the driving rib 11 of the locking lever 10 while the locking lever 10 is rotated counterclockwise about the hinge shaft 10H. Will rotate. 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 as follows. 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, the disk ejection apparatus of the disk drive according to the prior art as described above 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.

An object of the present invention is to solve the conventional problems as described above, to perform the ejection of the disc with a feed force for the transfer of the pickup.

Another object of the present invention is to make it possible to more reliably exert the force for ejection in performing the ejection of the disk as a feed force for pick-up transfer.

1 is a plan view showing the configuration of a disc ejection apparatus according to the prior art.

Figure 2 is a plan view showing the configuration of an embodiment of a disk ejection apparatus according to the present invention.

3 is a plan view showing a lead screw constituting the embodiment shown in FIG.

4 is an operational state diagram showing that the embodiment of the present invention is operated.

Figure 5a is an operating state showing that the lead screw and the feed guide is interlocked during the operation of the disk drive in the embodiment of the present invention.

Figure 5b is an operational state showing that the lead screw and the feed guide is interlocked during the eject operation in the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

30: chassis 31,31 ': guide shaft

32,32 ': Guide Boss 35: Turntable

36: clamp 37: limit switch

40: Pickup 42: Feed Guide

43: rack 50: sled motor

51: shaft 53,54,55: gear

57: lead screw 58: support

60: eject lever 61: interlocking flights

62,62 ': Guide slot 63: Driven arm

70: stopper lever 71: shaft

72: driving projection 73: jam boss

According to a feature of the present invention for achieving the above object, the present invention is that in the disk ejection apparatus of the disk drive, the pickup transport member for transporting the pickup when driven by the drive source is formed in a different diameter depending on the operation period of the pickup It features.

According to another feature of the present invention, the present invention provides a tray on which a disk is mounted, a fastening means for fastening the tray in a set, and a release member for releasing the fastening means for releasing the fastening means so that the tray can be ejected from the set. And a pickup transport member which is driven by a driving source, is moved by the pickup in the ejection section to drive the release member, and the pickup conveying member is formed to have a different diameter between the operation section and the ejection section of the pickup.

The pickup transport member is a lead screw formed with a diameter of the ejection section for ejecting the disk is larger than the diameter of the operating section in which the pick-up operation is performed,

The fastening means is installed on the tray and is releasably hung on one side in the set to fasten the tray in the set, and the fastening is released by the release member so that the tray can be ejected.

On the other hand, the release member is driven by the relative movement of the pickup transport member relative to the pickup to release the fastening state of the fastening means so that the disk can be ejected.

According to the present invention having such a configuration, it is possible to more reliably perform ejection of the disc by using a driving force for transferring the pickup.

Hereinafter, a disk ejection apparatus of a disk drive according to the present invention as described above will be described in detail with reference to the embodiment shown in the accompanying drawings.

As shown in FIG. 2, guide shafts 31 and 31 ′ are installed side by side on the chassis 30. A pickup 40 is guided along the guide shafts 31, 31 ′. On the chassis 30, a turntable 35 for rotating the disk is provided. The turntable 35 is rotated by a spindle motor (not shown). On the turntable 35, a clamper 36 for holding a disk is provided. Reference numeral 37 denotes a limit switch that senses a position of the pickup 40 and provides a signal for controlling power for moving the pickup 40.

The pickup 40 reads the information on the disk rotated by the turntable 21 while moving along the guide shafts 31 and 31 'or records the information on the disk. Feed guide 42 is provided on one side of the pickup (40). The feed guide 42 is provided with a rack 43 which meshes with and interlocks with the screw bone SV of the lead screw 57 to be described below.

On the other hand, a configuration for driving the pickup 40 will be described. The sled motor 50 is installed on the chassis 30. A drive gear 53 is installed on the rotating shaft 51 of the sled motor 50, and a connecting gear 54 is installed on the chassis 30 to mesh with the drive gear 53. Then, the driven gear 55 is installed to engage with the connecting gear 54. The driven gear 55 is installed in a lead screw 57 for driving the pickup 40. That is, the driven gear 55 and the lead screw 57 are installed coaxially. Therefore, when the driven gear 55 is rotated, the lead screw 57 is rotated.

As shown in FIG. 3, the lead screw 57 may be divided into an operation section A and an ejection section B. The diameter ΦB of the ejection section B is defined by the operation section (B). It is larger than diameter (ΦB) of A). The operation section A is a section of the lead screw 57 in which the feed guide 42 is engaged when the pickup 40 is operated while being moved along the guide shafts 31 and 31 '. The ejection section B is a section in which the feed guide 42 of the pickup 40 meshes with the lead screw 57 when the disk is ejected.

On the other hand, the interlocking piece 61 of the eject lever 60 is positioned at one end of the lead screw 57 supported by the support 58. The interlocking piece 61 is in contact with the one end of the lead screw 57 and is pushed by the direction of arrow A (see FIG. 4) of the lead screw 57. That is, the ejection of the disk is linked to the lead screw 57 by the relative movement of the lead screw 57 generated at the moment when the pickup 40 is moved toward the clamp 36 and stops.

Guide slots 62 and 62 'are formed in the eject lever 60, and guide bosses 32 and 32' formed in the chassis 30 are inserted into the guide slots 62 and 62 '. You are guided. The guide slots 62 and 62 'and the guide bosses 32 and 32' guide the movement of the eject lever 60. The other side of the eject lever 60, the drive arm 63 is formed long. The driving arm 63 serves to drive the stopper lever 70 to be described below.

On the other hand, the stopper lever 70 is installed on one side of the tray. The stopper lever 70 has a driving protrusion 72 interlocked with the driving arm 63 on one side thereof and is rotatably installed about the shaft 71. On the other side of the stopper lever 70, a catching boss 73 that is caught by the fastening boss 33 on one side of the set is formed. Such stopper lever 70 is elastically supported by the spring 75.

The operation of the embodiment of the present invention having such a configuration will be described in detail.

When the disk is placed on the tray and fixed on the turntable 35 by the clamp 36, the turntable 35 is rotated while the spindle motor rotates so that the disks rotate together. In this state, the pickup 40 is moved along the guide shafts 31 and 31 'by driving the sled motor 50, thereby reading a signal recorded on the disk or writing a signal on the disk. . At this time, the stopper lever 70 is rotated in the counterclockwise direction by the elastic force of the spring 75 so that the catching boss 73 is caught by the fastening boss 33 so that the tray does not come out of the set.

As described above, the pickup 40 is moved along the guide shafts 31 and 31 '. The driving force of the sled motor 50 is transmitted through the gears 53, 54, and 55 to rotate the lead screw 57. When the lead screw 57 is rotated, as shown in FIGS. 4 and 5a, the rack 43 of the feed guide 42 is interlocked with the threaded portion 57a of the lead screw 57 to be picked up ( 40) is moved.

At this time, when reading the signal recorded on the disk or recording the signal on the disk, the feed guide 42 is engaged with the operation section (A) of the lead screw 57 to move. In FIG. 5B, the feed guide 42 is interlocked with the operation section A of the lead screw 57.

If the user performs the eject operation to eject or replace the disk, the operation is performed as follows. Once the eject operation command is given the pickup 40 is moved towards the turntable 35. In this case, too, the rack 43 of the feed guide 42 is engaged with the threaded portion 57a of the lead screw 57 so that the pickup 40 moves. When the movement in the direction of the turntable 35 continues, the feed guide 42 enters the ejection section B of the lead screw 57. As shown in FIG. 5A, the feed guide 42 of the pickup 40 meshes with the ejection section B as described above.

At this time, even if the pick-up 40 is moved toward the turntable 35 and sensed by the limit switch 37, the eject command is ignored and the sled motor 50 is continuously rotated to move the pick-up 40. The pickup 40 that has been continuously moved in this way is stopped by the pickup base 45. At this time, even if the movement of the pickup 40 is stopped, if the sled motor 50 continues to rotate, it is pushed by the stopped pickup 40 so that the lead screw 57 moves in the direction of arrow A of FIG. do.

Therefore, the interlocking piece 61 of the eject lever 60 is pushed by the lead screw 57 to move together. Thus, the eject lever 60 also moves in the direction of arrow A. FIG. In this case, the guide bosses 32 and 32 'which are located at one end of the guide slots 62 and 62' are positioned at the other end. In addition, the driving arm 63 rotates the stopper lever 70 clockwise.

In this case, the catching boss 73 is pulled out of the fastening boss 33 and the tray is pulled out of the set to some extent. The reason why the tray comes out of the set to some extent is because of the elastic force of an elastic member (not shown) that elastically supports the tray to the outside of the set.

When the eject operation is completed in this way, a separate switch (not shown) is sensed and the sled motor 50 is rotated in the reverse direction again so that the feed guide 42 ejects the section B of the lead screw 57. To be positioned on one side of the operation section (A).

On the other hand, since the ejection section B has a larger diameter than the operation section A, when the pickup 40 is stopped and the lead screw 57 is moved in the direction of arrow A, the feed guide 42 The lead screw 57 can be reliably moved in the direction of the arrow A without the rack 43 passing over the thread SM of the lead screw 57. Here, if the diameter of the ejection section B is not relatively large, the rack 43 of the feed guide 42 passes over the thread SM of the lead screw 57 or rides on the thread SM to eject the operation. This will not work properly.

At this time, if the overall diameter of the lead screw 57 is relatively large, such as the ejection section (B) of the present invention, the rack 43 of the feed guide 42 in the operating section (A) to ride on the thread (SM) It happens. That is, when the rack 43 is positioned on the thread SM by deformation due to external force or the like, it is difficult to return it back to the screw bone SV.

On the contrary, when the entire diameter of the lead screw 57 is relatively small as in the operating section A of the present invention, the rack 43 of the feed guide 42 may ride over the thread SM in the ejection section B. It will happen a lot and will not eject correctly.

Therefore, in the present invention, as described above, the diameter of the lead screw 57 varies depending on the section, so that the detached state of the rack 43 is easily restored during the pick-up 40 operation, and the rack 43 is the lead screw during the ejection operation. 57) It is possible to reliably generate a force for ejecting the tray without deviating from it.

Disc ejection apparatus of the disk drive according to the present invention as described in detail above to eject the tray by the relative movement of the lead screw caused by the pickup is moved in the ejection section and stopped, perform the eject operation with a relatively simple configuration There is an effect that can be done.

In addition, the diameter of the lead screw is relatively large in the ejection section so that the rack of the feed guide does not travel over the thread of the lead screw so that the force for ejecting the tray can be reliably transmitted between them, and the operating section The diameter of the disk drive is relatively small, so that even if the rack is separated by an external force, it can be easily recovered, thereby improving the operational reliability of the disk drive.

Claims (5)

In the disk ejection apparatus of a disk drive, the disk ejection apparatus of a disk drive, characterized in that the pickup transport member for transporting the pickup when driven by the drive source is formed in a different diameter depending on the operation period of the pickup. The tray where the disk is placed and moved, Fastening means for fastening the tray in the set; A release member for releasing the fastening means so that the tray can be ejected from the set; The disk drive, characterized in that it comprises a pickup transport member which is driven by a drive source, the pickup is moved by the pickup in the ejection section to drive the release member, the pick-up transport member is formed with a different operating section and the ejection section diameter of the pickup; Disc eject unit. 3. The disk ejection apparatus of claim 2, wherein the pickup transport member is a lead screw having a diameter of an ejection section for ejecting the disk larger than a diameter of an operation section in which the pick-up operation is performed. The method of claim 2 or 3, wherein the fastening means is installed on the tray and is releasably hung on one side in the set to fasten the tray in the set, the fastening is released by the release member can be ejected the tray. Disk ejection apparatus for a disk drive. The disk drive according to claim 2 or 3, wherein the release member is driven by the relative movement of the pickup transport member with respect to the pickup to release the fastening state of the fastening means so that the disk can be ejected. Disk ejection device.