KR20060017329A - Apparatus for preventing movement of tray in disk drive - Google Patents

Abstract

The present invention relates to a tray flow preventing device of a disk drive. The present invention includes a main base 30 having a long sidewall 31 at both ends in front and rear directions, and having a plurality of guide bosses 32 formed on an upper surface corresponding to the inside of the sidewall 31, and the main base 30. And a tray 35 supported on the main base 30 and provided in the front and rear directions of the main base 30, and provided in the main base 30. Protruding to both sides of the) and the front end is configured to include an elastic arm 34 elastically deformed in accordance with the contact of the tray 35. According to the present invention having such a configuration, it is possible to minimize the generation of vibration and noise between the tray 35 and the main base 30, there is an effect that the operation reliability of the tray is increased.

Disk drives, trays, floating

Description

{Apparatus For Preventing Movement Of Tray In Disk Drive}

1 is a plan view showing a configuration of a disk drive according to the prior art.

2A is a state diagram showing a state in which a tray according to the prior art unloads a disk.

2B is a state diagram showing a state in which a tray according to the prior art loads a disk;

Figure 3 is a plan view showing the configuration of a disk drive employing a tray flow preventing device of the embodiment of the present invention.

4 is a perspective view showing the main components of the embodiment of the present invention;

5 is an operational state diagram showing a state in which the elastic arm of the embodiment of the present invention in contact with the side of the tray.

Explanation of symbols on the main parts of the drawings

30: main base 31: side wall

32: guide boss 31 ': through air

33: height regulation rib 34: elastic arm

34a: base 34b: bend                 

34b ': contact portion 35: tray

36: rack gear 37: entry guide

39: door mounting hole 40: door

41: loading gear 50: clamp bracket

52: clamp

The present invention relates to a disk drive, and more particularly, to a flow prevention device of a tray of a disk drive for loading and unloading a disk while moving relative to the main base.

1 is a plan view showing a configuration of a disk drive according to the prior art, Figure 2a is a state diagram showing the state of the tray unloading the disk according to the prior art, Figure 2b is a tray according to the prior art loading the disk It is a state figure which shows the state to make.

As shown in the drawing, both sides of the main base 1 serving as a skeleton of the disc drive are formed long in front and rear so that the side wall 1 'has a predetermined height. A plurality of guide bosses 2 for guiding the movement of the tray 5 to be described below are formed at both ends of the upper surface corresponding to the inside of the side wall 1 ′ of the main base 1.

And on the bottom surface of the main base (1) is provided with a driving unit (not shown) including a loading motor for providing a driving force for the tray 5 to move in and out of the drive. This drive unit is composed of a plurality of gears and belts, the driving force is finally transmitted to the loading gear (1a).

A height regulating rib 3 is formed on the inner surface of the side wall of the main base 1 so as to extend in a direction facing each other in the horizontal direction. The height regulating rib 3 regulates both sides of the upper end of the tray 5 to prevent the tray 5 from excessively flowing upward with respect to the main base 1.

The tray 5 is installed on the upper surface of the main base 1, and loads and unloads a disk while moving back and forth with respect to the main base 1. At this time, one side of the lower surface of the tray 5 is provided with a rack gear (5a) to be engaged with the loading gear (1a) in the longitudinal direction of the tray (5). In addition, guide channels (not shown) into which guide bosses 2 of the main base 1 are inserted are formed at both ends of the lower surface of the tray 5.

On the upper surface of the tray 5, a disk seating surface 7 on which a disk is seated is formed. A door mounting opening 8 is formed at the tip of the tray 5, and a door 10 is mounted at the door mounting opening 8 as indicated by a dotted line in FIG. 1. The door 10 is installed at the front of the tray 5.

On the other hand, in order for the tray 5 to move smoothly with respect to the main base 1, a predetermined gap is provided between the guide ribs and the guide channel, and between the height regulating ribs 3 and the upper surface of the tray 5. A gap is needed.

In the figure, reference numeral 11 is a clamp bracket, and 12 is a clamp for holding a disk seated on a turntable.

In the prior art having such a configuration, the tray 5 is loaded or unloaded a disk while moving on the main base 1. At this time, the movement of the tray 5 is made by the driving force of the drive source is transmitted to the rack gear (5a) by the engagement of the loading gear (1a) and the rack gear (5a) as shown in Figures 2a and 2b.

In other words, when the tray 5 unloads the disc out of the drive, the loading gear 1a rotates clockwise and engages with the rack gear 5a. On the contrary, when the tray 5 loads the disc into the drive, the loading gear 1a rotates counterclockwise and engages with the rack gear 5a. The driving force of the driving source is transmitted to the rack gear 5a by the engagement of the loading gear 1a and the rack gear 5a so that the tray 5 enters into and out of the drive.

And the tray 5 is guided by the guide boss 2 and the guide channel, the restriction on the flow in the height direction of the tray 5 is made by the height regulating rib (3).

However, the prior art as described above has the following problems.

That is, when the tray 5 as shown in FIG. 2A unloads the disk, the loading gear 1a meshed with the rack gear 5a rotates in the counterclockwise direction (indicated by the dotted arrow). The tray 5 thus flows in the left direction of the tray 5 as indicated by the solid arrows.

On the contrary, when the tray 5 loads the disc, as shown in Fig. 2B, the loading gear 1a is rotated clockwise (indicated by the dotted arrow). The tray 5 thus flows in the right direction of the tray 5 as indicated by the solid arrows.

It is only natural that the driving force is applied in any one direction as described above in the transmission of the driving force by the engagement of the loading gear 1a and the rack gear 5a. The gap between the side wall 1 'and the tray 5 is necessary for the tray 5 to be moved by the engagement of the loading gear 1a and the rack gear 5a as described above. However, due to this gap, the tray 5 flows in the left and right directions when entering and exiting, thereby causing vibration and noise between the main base 1 and the tray 5.

Therefore, in order to reduce such vibration and noise, the gap must be made small. However, if the gap is formed too small in this manner, too much force is required to move the tray 5 driven by the engagement relationship between the loading gear 1a and the rack gear 5a, and the tray 5 is attached to the main base 1. ), There is a problem that the work becomes difficult.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to minimize the occurrence of gaps between them while the relative movement with respect to the main base of the tray is smooth.

According to a feature of the present invention for achieving the above object, the present invention has a main side having a long side wall at both ends in the front and rear direction, a plurality of guide bosses on the upper surface corresponding to the inner side of the side wall, and A guide channel supported on the main base and guided by the guide boss to enter and exit the front and back directions of the main base, and protruded from both sides of the tray provided at the main base to prevent flow of the tray; The tip includes an elastic arm elastically deformed according to the contact of the tray.

The elastic arm is formed integrally with the main base in a through portion at the tip end side of the side wall of the main base.

The elastic arm may be formed so as to be elastically deformed and integrally formed on the side wall at one side in the longitudinal direction of the through part and extend a predetermined length to the other side, and one end connected to the base part to protrude from the side wall toward the tray. Consists of a bent portion formed by bending once, the bent portion is formed with a contact portion in close contact with the elastic force to the side of the tray to allow the elastic arm to elastically deform.

In the tray flow preventing device of the disk drive according to the present invention having such a configuration, noise and vibration do not occur between the tray and the main base, and thus the operation reliability of the tray is increased.

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

Figure 3 is a plan view showing a disk drive employing the tray flow preventing device of the embodiment of the present invention, Figure 4 is a perspective view showing the main configuration of the embodiment of the present invention, Figure 5 is a side view of the elastic arm tray of the embodiment of the present invention It is an operation state diagram which shows the state which contacted.                     

As shown in these figures, the main base 30 serves as a skeleton of the disc drive, and sidewalls 31 having a predetermined height are formed at both ends thereof. The side wall 31 extends along both ends from the front end to the rear end of the main base 30.

And on the bottom surface of the main base 30 is provided with a drive unit (not shown) including a loading motor for providing a drive force for the drive in and out of the tray 35. This drive unit is composed of a plurality of gears and belts, the driving force is finally transmitted to the loading gear (41).

Guide bosses 32 are formed on the upper surfaces of both ends of the main base 30 corresponding to the inside of the side wall 31 to protrude a predetermined height upward. The guide boss 32 is formed in a number of places intermittently from the front end to the rear end of the main base 30. The length of each guide boss 32 is appropriately determined according to the design conditions.

A plurality of height regulating ribs 33 are formed on the inner surface of the side wall 31 to guide the heights of the upper surfaces of both ends of the tray 35 to be described below. The height regulating rib 33 is formed in a plurality in the direction facing each other on the side wall (31). The height regulating rib 33 is formed to maintain a predetermined gap with the upper surface of the tray 35. As such, forming a gap between the height regulating rib 33 and the upper surface of the tray 35 may more easily assemble the tray 35 to the main base 30, and the tray 35 and the height regulating rib 33 may be formed. This is to minimize the friction between.

On the other hand, a gap is formed between the side wall 31 and the tray 35 to facilitate the entry and exit of the tray 35. However, since the flow of the tray 35 occurs due to the gap, in the present invention, the elastic arm 34 is designed to be formed at the front end side of the side wall 31. The elastic arm 34 is elastically deformable due to the characteristics of its shape and exerts an elastic force in the elastically deformed state.

In other words, the elastic arm 34 is composed of a base portion 34a and a bent portion 34b, and is provided in the through-hole portion 31 'which is elongated in a rectangular shape along the side wall 31. That is, the base portion 34a is formed integrally with the side wall 31 at one side in the longitudinal direction of the through hole 31 ′ so as to be elastically deformed, and extends a predetermined length to the other side.

The bent part 34b is formed in the front-end | tip of this base part 34a. That is, the bent portion 34b is formed to be bent a plurality of times so that one end is connected to the base portion 34a and protrudes from the side wall 31 toward the tray 35. The bent portion 34b is in close contact with an elastic force on the side of the tray 35 to be described below. In other words, the bent portion 34b is formed to protrude slightly more than the inner surface of the side wall 31, as shown in the figure, and the contact portion 34b 'is provided at the protruding portion. The contact portion 34b ′ means an edge of the bent portion 34b, and the elastic arm 34 is elastically deformed by being in close contact with the side surface of the tray 35.

This elastic arm 34 is formed on the front end side of the side wall 31 in this embodiment, whereby the flow of the tray 35 according to the forward and reverse rotation of the loading gear 41 located on the front end side of the drive By preventing, the door 40 for opening and closing the entrance formed in the front panel of the set can be more accurately closed the entrance.

The tray 35 is installed on the upper surface of the main base 30. The tray 35 moves along the upper surface of the main base 30 to load and unload the disk. To this end, a rack gear 36 engaged with the loading gear 41 is provided at one side of the lower surface of the tray 35 in the longitudinal direction of the tray 35. In addition, guide channels (not shown) are formed at both ends of the lower surface of the tray 35. The guide boss 32 is inserted into the guide channel.

The disk seating surface 38 on which the disk is seated is formed on the upper surface of the tray 35. A door mounting opening 39 is provided at the tip of the tray 35. The door 40 is attached to the door mounting opening 39. The door 40 serves to open and close the entrance formed in the front panel of the set.

Reference numeral 50 denotes a clamp bracket at both ends of which is mounted on the upper ends of both sidewalls 31 of the main base 30, and 52 denotes a clamp which is installed at the clamp bracket 50 to fix the disk seated on the turntable.

Hereinafter, the operation of the tray flow preventing device of the disk drive according to the present invention having the configuration as described above will be described in detail.

The tray 35 is guided by guide bosses 32 inserted into the guide channels inside both sidewalls 31 of the main base 30 to perform a linear motion. The tray 35 moves between the front end and the rear end along the upper surface of the main base 30. At this time, the tray 35 moves with the disk seated on the disk seating surface 38 to load and unload the disk.

When the tray 35 moves along the upper surface of the main base 30 as described above, the height of the tray 35 is regulated by the height regulating rib 33. At this time, a predetermined gap is formed between the upper surface of the tray 35 and the height regulating rib 33, so that the tray 35 is smoothly moved.

Meanwhile, a predetermined gap is formed between the guide boss 32 and the guide channel and between the height regulating rib 33 and the upper surface of the tray 35. Therefore, the gap between them allows the tray 35 to flow to some extent with respect to the main base 30. For reference, the gap may be maintained to some extent so that the tray 35 may be moved smoothly.

In addition, a gap is formed between the side wall 31 and the tray 35 for the entry and exit of the tray 35. This gap is necessary for the entry and exit of the tray 35, but the gap causes the tray 35 to flow left and right when entering and exiting. Therefore, in order to reduce the flow in the present invention, the elastic arm 34 is in contact with both sides of the tray 35 to elastically act. That is, the elastic arms 34 are formed at both ends of the side wall 31 to face each other, thereby simultaneously contacting both side surfaces of the tray 35 to exert an elastic force.

Thus, the elastic force 34 acts on the tray 35 by the elastic arm 34 is shown in FIG. At this time, the base portion 34a of the elastic arm 34 may be elastically deformed by contacting the side of the tray 35 with the contact portion 34b 'and may be closely attached to the tray 35 with elastic force. In other words, the elastic arm 34 is initially in the position shown by the dotted line in FIG. 5, but when the contact portion 34b ′ of the elastic arm 34 contacts the side of the tray 35, it is shown in FIG. 5. Elastic deformation as shown. Therefore, the tray 35 does not flow arbitrarily with respect to the main base 30 while smoothly loading or unloading.

Therefore, when the loading gear 41 is engaged with the rack gear 36 and the tray 35 is driven back and forth, the flow in one direction of the tray 35 relative to the main base 30 is limited. In other words, when the tray 35 advances, the loading gear 41 rotates counterclockwise so that the tray 35 flows with a force applied to the left. At this time, the elastic arm 34 formed on the left side wall 31 contacts the tray 35 and exerts an elastic force, so that the flow generated by the power transmission by the engagement of the loading gear 41 and the rack gear 36 is maintained. Relax

On the contrary, when the tray 35 enters, the loading gear 41 rotates in the clockwise direction so that a force is applied to the right side of the tray 35. In this case, the tray is formed by the elastic arm 34 formed on the right side wall 31. The flow of 35 is relaxed.

In addition, in the process of moving the tray 35 from the unloading position to the loading position, or assembling the tray 35 to the main base 30, the entry guide portion 37 is the elastic arm 34 and the tray. Allow the sides of (35) to work well together.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

The tray flow preventing device of the disk drive according to the present invention as described in detail above forms an elastic arm exerted on the side of the tray to exert an elastic force so that the tray does not flow arbitrarily with respect to the main base.

Therefore, while the tray is smoothly moved with respect to the main base, the elastic arm does not move the tray with respect to the main base so that vibration and noise may not be generated between them.

In addition, in the structure for guiding the tray to move to the loading position and the unloading position with respect to the main base, it is possible to have a gap suitable for the movement of the tray, the operation reliability of the tray can be greatly improved.

Claims (3)

A main base having a long sidewall at both ends in front and rear directions, and having a plurality of guide bosses on an upper surface corresponding to the inner side of the sidewall; A tray which is supported on the main base and has a guide channel through which the guide boss is guided in and out of the front and rear directions of the main base; And a resilient arm provided on the side wall and protruding to both sides of the tray to prevent flow of the tray, and an end of which is elastically deformed according to the contact of the tray. 2. The tray flow preventing device of claim 1, wherein the elastic arm is formed integrally with the main base in a through part of the sidewall tip side of the main base. The base of claim 2, wherein the elastic arm comprises: a base portion integrally formed on the side wall at one side in the longitudinal direction of the through hole so as to be elastically deformable, and extending to the other side by a predetermined length; One end is connected to the base portion is composed of a bent portion formed bent a plurality of times so as to project toward the tray from the side wall, The bent portion is a tray drive preventing device of the disc drive, characterized in that the contact portion is formed in close contact with the elastic force to the side of the tray to elastically deform the elastic arm.

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