JP2000187916A - Disk drive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce noise by integrally forming pressurizing pawls on a disk tray so as to be elastically deformable by the pressurization from the casing part confronted with the transporting route of the disk tray. SOLUTION: Projected parts 15 of the pressurizing pawls 14 are formed to the free state projected to the casing side from the disk tray surface in the state when the disk medium 20 is placed on the disk tray 10. When the disk tray 10 is transported for sliding to the inside direction of the casing 1, the projected parts 15 of the pressurizing pawls 14 attain to the parts where pressurizing projected parts 3 are positioned. The projected parts 15 become such a state as running onto the tapered surfaces of the pressurizing projected parts 3 and resulting that the pressurizing force from the tapered surfaces of the pressurizing projected parts 3 is exerted on the projected parts 15. By the further transportation of the disk tray 10, the pressurizing pawls 14 are elastically deformed, and the projected parts 15 run on the pressurizing projected parts 3 and become the housing finished state. By this pressurizing force due to this running on, the disk tray 10 is elastically pressed on toward the bottom surface 1b of the casing 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive, and more particularly to an improvement in a disk drive for positioning and supporting a disk tray for transporting a disk medium in a housing.

[0002]

2. Description of the Related Art Generally, a disk-shaped recording medium such as an optical disk or a magneto-optical disk (hereinafter referred to as a disk medium).
As shown in FIG. 6, for example, a disk drive device for reading and writing data has a housing 1 formed of a metal member or a resin member, and a plurality of rhombic shapes arranged on inner surfaces of side walls 1a and 1a of the housing 1. It comprises a guide projection 2, a disk tray 10 arranged reciprocally slidable inside the housing 1, and a disk medium 20 arranged on the disk tray 10.

[0003] The disc tray 10 is, for example, AB
It is formed of a resin material such as S, polycarbonate, and the like. A mounting portion of the disk medium 20 is formed on the upper surface, and projecting portions 11 are formed on both ends, and guide grooves 12 are formed. Are formed. These projecting portions 11 and guide grooves 12 are substantially L-shaped,
The guide protrusions 2 are arranged in the guide grooves 12 such that the protrusions 11 are located between the guide protrusions 2 and the bottom surface 1b of the housing 1.

In FIG. 1, a spindle motor for rotating the disk medium 20, a pickup for recording and reproducing information on the disk medium 20, a spindle motor, a mechanical chassis for supporting the pickup, and the disk medium 20 are enclosed by a disk tray 10. A transport mechanism for transporting inside and outside the body is omitted.

[0005] In this disk drive device, for example, when the disk medium 20 is set on the disk mounting portion of the disk tray 10 and the transport mechanism is operated, the disk tray 10 is stored in the housing 1. When the transport mechanism is operated in the housed state, the disk tray 10 slides and the disk medium 20 is transported out of the housing. At this time, the disc tray 10 is smoothly slid and conveyed by an appropriate clearance g formed between the protrusion 11 and the guide groove 12 thereof and the inner surface 1 a of the housing 1 and the guide protrusion 2. .

Normally, this disk drive device uses a disk medium 20 to shorten the time for recording and reproducing information.
Is rotating at high speed. For this reason, the vibration of the mechanical chassis and the air vibration due to the rotation of the disk medium 20 increase, and the disk tray 10 vibrates greatly.
Along with these phenomena, there is a problem that the disc tray 10 and the housing 1 collide with each other due to the clearance g formed between the disk tray 10 and the housing 1, and the hit noise increases. The solution is desired.

[0007]

Therefore, in order to solve the above-mentioned problem, a disk drive device having a structure shown in FIG. 7 has been proposed. That is, in this proposal, a plurality of spring members SP are fixed inside the housing 1. The tip of the spring member SP is slightly inclined or curved,
The disc tray 10 is configured to be pressed smoothly.

According to this configuration, when the disk tray 10 is transported into the housing 1, the disk tray 10 is elastically pressed toward the bottom surface 1b of the housing 1 by the plurality of spring members SP. For this reason, even if the clearance g is formed between the housing 1 and the disk tray 10, the hit noise due to the collision of the disk tray 10 with the housing 1 can be effectively reduced.

However, this spring member SP is not
, The installation is troublesome, not only the productivity is impaired, but also the spring member SP
Has a new problem that the cost of the disk drive device increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a disk drive device which can reduce the noise caused by the collision of a disk tray with a housing and can reduce the cost with a simple structure.

[0011]

SUMMARY OF THE INVENTION Accordingly, in order to achieve the above object, the present invention comprises a disk tray for transporting a disk medium and a housing for positioning and supporting the disk tray. The claw is integrally formed so as to be elastically deformable by a pressing action from a housing portion facing the transport path of the disc tray.

According to a second aspect of the present invention, a pressing claw is integrally formed at both ends of the disk tray on the take-out side and / or the inner side, and a front end portion is directly formed by a housing portion. According to a third aspect of the present invention, the protrusion of the pressing claw is formed integrally with the disk tray so as to protrude from the disk tray surface toward the housing side. It is characterized by the following.

A fourth invention of the present invention is characterized in that a pressing projection for pressing the projection is formed in a housing portion facing the projection of the pressing claw, and a fifth invention is provided. Is characterized in that the front and rear surfaces of the pressing projection are formed in a substantially tapered shape.

Further, in a fourth aspect of the present invention, the relationship between the inner dimension h of the housing and the outer dimension H of the projection of the pressing claw in the disc tray is h <H, and the elasticity of the pressing claw is It is characterized in that both dimensions h and H are configured to be substantially equal at the time of deformation.

[0015]

Next, a first embodiment of a disk drive according to the present invention will be described with reference to FIGS. The same parts as those in the conventional example shown in FIGS. 6 and 7 are denoted by the same reference numerals, and detailed description thereof will be omitted. In the figure, a characteristic portion of this embodiment is that a pressing projection 3 is formed on a housing portion (for example, near the entrance) facing the transport path of the disc tray 10 and the pressing projection 3 is pressed so as to face the pressing projection 3. That is, the claws 14 are formed integrally with the disc tray 10.

The pressing projection 3 is formed of a resin material such as denatured PPE (denatured polypropylene / ethylene), and its front and rear surfaces are tapered or curved. It is fixed to the inner surface of both ends. On the other hand, a pressing claw 14 is provided on the disc tray 10.
Are integrally formed so as to face the pressing projection 3. A space 13 is formed around the pressing claw 14 so that the pressing claw 14 is easily elastically deformed. A protrusion 15 having, for example, a rounded shape is integrally formed at the tip of the pressing claw 14 so as to protrude from the disk tray surface toward the housing.

This disk drive operates as follows. FIG. 1 shows a disk medium 20 in a disk tray 10.
2 shows a state in which the disk medium 20 is taken out of the housing 1, and FIG.

First, the disk medium 20 is placed on the disk tray 10 in the state shown in FIG. In this state,
As shown in FIGS. 3B and 3C, the projection 1 of the pressing claw 14
Reference numeral 5 is in a free state protruding from the disk tray surface toward the housing.

Then, the disc tray 10 is conveyed and slid toward the inside of the housing 1 by driving a conveying mechanism (not shown). At this time, the protrusion 11 of the disc tray 10 is located between the bottom surface 1b of the casing 1 and the guide protrusion 2, and the disc tray 10 is conveyed by the guide groove 12 being guided by the guide protrusion 2.

Next, the protrusion 15 of the pressing claw 14 is
Is reached, the projection 15 rides on the tapered surface of the pressing projection 3, and the pressing force from the tapered surface of the pressing projection 3 acts on the projection 15. When the disc tray 10 is further conveyed, the pressing claw 14 is elastically deformed, and the protrusion 15 rides on the pressing protrusion 3 as shown in FIGS. State. The disc tray 10 is elastically pressed toward the bottom surface 1b of the housing 1 by the pressing force caused by the riding.

According to this embodiment, the disk tray 10
In the state of transport and storage in the housing 1, the pressing claw 14 receives a pressing force due to the protrusion 15 riding on the pressing protrusion 3. As a result, the disc tray 10 is elastically pressed toward the bottom surface 1b of the housing 1, and as a result, the disc medium 2 is used to reduce the time for recording and reproducing information.
0 is rotated at high speed, the housing 1 and the disc tray 10
Irrespective of the clearance existing between them, the collision of the disk tray 10 with the housing 1 can be reduced, and the hit noise and vibration can be effectively reduced.

In particular, since the pressing projection 3 is disposed at the entrance of the housing 1, the mounting is easy and the productivity can be improved.

Further, since the pressing projections 3 and the pressing claws 14 are symmetrically located at both ends of the casing 1 and the disc tray 10, the disc tray 10 can be pressed uniformly to the casing 1 from left to right. This makes it possible to more effectively reduce the noise and vibration caused by the collision of the disk tray 10 with the housing 1.

FIG. 3 shows a second embodiment of the disk drive device according to the present invention. The basic configuration is the same as that of the embodiment shown in FIGS. The difference is that the housing 1 is made of a metal plate and the pressing projection 3A is formed by drawing.

According to this embodiment, since the labor for mounting the pressing projection 3 on the housing 1 as in the first embodiment can be omitted, the apparatus cost can be further reduced.

FIG. 4 shows a third embodiment of the disk drive according to the present invention. The basic configuration is the same as that of the embodiment shown in FIGS. The difference is that the pressing projection 3 in the housing 1 is omitted, and the relationship between the inner dimension h of the housing 1 and the outer dimension H of the projection 15 of the pressing claw 14 in the disc tray 10 is h <H. In addition, the configuration is such that both dimensions h and H are substantially equal when the pressing claw 14 is elastically deformed.

According to this embodiment, the disk tray 10
During storage in the housing 1, the projection 15 of the pressing claw 14 receives a pressing force from the opposing housing portion, whereby the pressing claw 14 is elastically deformed, and the disc tray 10 is moved to the bottom surface 1 b of the housing 1. Will be pressed. Therefore, as in the first embodiment, the hit noise can be effectively reduced.

Further, since the size of the housing 1 is reduced as compared with the first and second embodiments, the apparatus cost can be further reduced as compared with the second embodiment.

FIG. 5 shows a fourth embodiment of the disk drive device according to the present invention, and the basic configuration is the same as that of the embodiment shown in FIGS. The difference is that the pressing projections 3 are formed at both ends of the inner depth of the housing 1, and that the pressing projections 3 are formed on the inner depth side opposite to the take-out side of the disk tray 10 and at the portions corresponding to the pressing projections 3. That is, the pressing claw 14 having the projection 15 is integrally formed.

According to this embodiment, as in the first embodiment, when the disk tray 10 is transported and stored in the housing 1, the pressing claws 14 ride on the pressing protrusions 3 of the protrusions 15. Will be subjected to the pressing force. As a result, the disc tray 10 is elastically pressed toward the bottom surface 1b of the casing 1, so that even when the disc medium 20 is rotated at a high speed, the clearance existing between the casing 1 and the disc tray 10 is maintained. Regardless, the housing 1 of the disc tray 10
Collision can be reduced, and hit noise and vibration can be effectively reduced.

The present invention is not limited to the above-described embodiment. For example, the guide projections disposed on the housing can be set in any suitable shape such as a circular shape in addition to a diamond shape. It is also possible to form them integrally. In addition, the number of pressing protrusions of the housing and the number of pressing claws of the disk tray opposed thereto can be set to one or three or more in addition to two. Further, the pressing claw can be formed on any part other than the take-out side and the inner side of the disc tray. In this case, in particular, when the pressing projection is used, it is necessary to provide the pressing projection at a portion corresponding to the pressing claw.

[0032]

As described above, according to the present invention, when the disk tray is housed in the housing, the pressing claw is elastically deformed by the action of the pressing force from the housing portion to the projection. As a result, the disc tray is elastically pressed toward the bottom of the housing, so that even if the disc medium is rotated at a high speed in order to shorten the time for recording and reproducing information,
Regardless of the clearance that exists between the housing and the disk tray, collision of the disk tray with the housing can be reduced,
Hit noise and vibration can also be effectively reduced.

In particular, if the pressing claws are formed symmetrically and integrally at both ends of the disk tray, the disk tray can be pressed equally to the left and right sides of the housing when the disk tray is housed in the housing. The hit noise due to the collision of the disk tray with the housing can be reduced more effectively.

[Brief description of the drawings]

FIGS. 1A and 1B are diagrams showing a first embodiment of a disk drive device according to the present invention, wherein FIG. 1A is a plan view showing a state where a disk tray is taken out of a housing, and FIG. FIG. 2A is a sectional view taken along line XX, and FIG. 2C is a front view of FIG.

FIGS. 2A and 2B are views showing a first embodiment of the disk drive device according to the present invention, wherein FIG. 2A is a plan view of a disk tray housed in a housing, and FIG. Figure (a)
2 (c) is a front view of FIG. 1 (a).

FIG. 3 is an exemplary sectional view showing a main part of a second embodiment of the disk drive device according to the present invention;

FIG. 4 is an essential part cross-sectional view showing a third embodiment of the disk drive device according to the present invention;

FIG. 5 is a view showing a fourth embodiment of the disk drive device according to the present invention, wherein FIG. 5 (a) is a plan view showing a state where a disk tray is taken out of a housing, and FIG. FIG. 2A is a sectional view taken along the line YY, and FIG. 2C is a front view of FIG.

6 (a) is a plan view, FIG. 6 (b) is a side sectional view of a main part of FIG. 6 (a), and FIG. (C) is a front view of the same figure (a).

7A and 7B are diagrams showing different embodiments of the disk drive device according to the conventional example, wherein FIG. 7A is a plan view, FIG. 7B is a sectional side view of a main part of FIG. FIG. 3C is a front view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 1a Inner surface of side wall 1b Bottom 2 Guide protrusion 3, 3A Pressing protrusion (casing portion) 10 Disc tray 11 Projection 12 Guide groove 13 Space 14 Pressing claw 15 Projection 20 Disk medium

Claims (6)

[Claims] A disc tray for conveying a disc medium; and a housing for positioning and supporting the disc tray.
A disk drive device, wherein a pressing claw is integrally formed on the disk tray so that the pressing claw can be elastically deformed by a pressing action from a housing portion facing a transport path of the disk tray. 2. The disk tray ejection side and / or
The pressing claws are integrally formed at both end portions on the inner rear side, and a protruding portion directly pressed by the housing portion is integrally formed at a tip portion thereof. Disk drive device. 3. A projection of a pressing claw on the disc tray,
3. The disk drive device according to claim 2, wherein the disk drive device is integrally formed so as to protrude from the disk tray surface toward the housing. 4. The disk drive device according to claim 1, wherein a pressing projection for pressing the projection is formed in a housing portion facing the projection of the pressing claw. 5. The disk drive device according to claim 3, wherein the front and rear surfaces of the pressing protrusion are formed in a substantially tapered shape. 6. The relationship between the inner dimension h of the housing and the outer dimension H of the projection of the pressing claw in the disc tray is h <H, and both dimensions h and H are substantially equal when the pressing claw is elastically deformed. 2. The disk drive device according to claim 1, wherein the disk drive device is configured so as to: