JP2978324B2 - Disk unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive,
In particular, the present invention relates to an improvement in a connection structure between a holder for accommodating a disk jacket and an upper lid.

[0002]

2. Description of the Related Art Conventionally, as a disk device, there is a disk device in which a base end of an upper lid and a base end of a holder for accommodating a disk are openably and closably connected to a device main body by a support shaft. In such a disk device, when the upper lid is opened, the engaging claw of the upper lid is engaged with the engaging pin of the holder at a predetermined position, and the holder is lifted in conjunction with the upper lid. As a result, the positioning hole of the jacket is disengaged from the positioning boss of the apparatus main body, and the jacket can be taken out of the holder.

[0003]

In the above-mentioned conventional disk drive, if the positioning boss of the apparatus main body is close to the support shaft, there is a problem that the positioning hole of the jacket does not come off from the positioning boss. Therefore, it is necessary to separate the positioning boss from the support shaft. However, if the distance between the positioning boss and the support shaft is made large, there is a problem that the entire apparatus becomes large. Therefore, the present applicant has proposed a disk drive device in which the apparatus main body and the upper lid are connected via an opening / closing mechanism constituted by a four-bar rotating chain having two links (Japanese Patent Laid-Open No. 3-41659).
Reference). In this device, when the top lid is opened,
Since the holder is entirely lifted in a state of being slightly inclined with respect to the apparatus main body, even if the positioning boss is close to the support shaft, the positioning hole of the jacket can be removed from the positioning boss, thereby avoiding an increase in the size of the entire apparatus. be able to. However, since the opening / closing mechanism is constituted by the four-bar rotation chain, the number of parts and the number of assembling steps are increased, and the cost may be increased. According to the present invention, when the upper lid is opened, the jacket containing the disk can be smoothly removed from the holder, but the size of the entire apparatus can be reduced, and the number of parts and the number of assembling steps can be reduced. It is another object of the present invention to provide a disk device capable of reducing costs.

[0004]

According to the present invention, there is provided a disk drive comprising: an upper lid which is openably and closably supported by an apparatus main body; and a holder which is connected to the apparatus main body by a connecting member and is capable of accommodating a jacket containing a disk. The upper lid is provided with a first engagement portion that can be engaged with the holder, and a second engagement portion that can be engaged with a portion of the holder that is more distal than the first engagement portion, The first and second engaging portions are characterized in that they are disengaged from the holder as the upper lid is opened and closed.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 shows the configuration of a magnetic disk drive according to one embodiment of the present invention. In this figure, the apparatus main body 20 includes an upper lid 4.
0 is openably and closably mounted, and a holder 50 is provided between the upper lid 40 and the apparatus main body 20. Holder 50
Is linked to the opening and closing operation of the upper lid 40, when the upper lid 40 is closed, it is in a state of being close to the apparatus main body 20, and when the upper lid 40 is opened, it is separated from the apparatus main body 20 and the front end opening is directed obliquely upward. The jacket 10 can be accommodated in the holder 50.

[0006] As shown in FIG.
Two positioning holes 11 and a center hole 12 are formed. When the upper lid 40 and the holder 50 are closed, the positioning holes 11 are used for two positioning bosses 2 of the apparatus main body 20 described later.
3 and the center hole 12 is the spindle motor 2
1 output shaft. In this state, the spindle motor 21 rotates, the magnetic head 22 is set at a predetermined track position on the magnetic disk, and reading / writing of information on the magnetic disk is performed.

[0007] Referring again to FIG. 1, the apparatus body 20 the upper surface <br/> opening end side of the spindle motor 21 (FIG. 1 on the upper right
Positioning bosses 23 are provided at positions corresponding to the positioning holes 11 of the jacket 10 on the side) and on the base end side (on the lower left side in FIG. 1) . Each positioning boss 23 is inserted into a corresponding positioning hole 11 of the jacket 10 and positions the jacket 10 at a predetermined position with respect to the apparatus main body 20. In addition, of the positioning boss 23,
One 23a fits into the positioning hole 11 of the jacket 10.
It is not inserted. This positioning boss 23a
Determines the height position of the jacket 10 together with the other bosses 23
It is

The opening of the apparatus main body 20 has an opening end side.
A lock claw 24 is provided movably in the width direction along the surface . A lock arm 44 of the upper lid 40 is attached to the lock claw 24.
The upper lid 40 is engaged so as to be able to be disengaged and held in a closed state. A hinge support plate 2 is provided on both sides of the base end of the apparatus main body 20.
5 is erected. An upper lid 40 is rotatably supported by the hinge support plate 25 via a pin 45. That is, the hinges 41 projecting from both sides of the base end of the upper lid 40
5, the upper cover 40 is supported by the apparatus main body 20 so as to be openable and closable. In the center of the side surface of the device main body 20, a spring hooking portion 29 is provided in a protruding manner.
The spring hooking portion 29 and the hinge portion 41 of the upper lid 40 are connected by the upper lid biasing spring 30, whereby the upper lid 40
Is biased in the normally open direction, that is, the direction in which the open end (right end in the drawing) swings upward.

A holder 50 is connected to the apparatus main body 20 by a link 27. That is, one end of the link 27
Slightly higher than the hinge support plate 25 on the side surface of the device body 20
The other end of the link 27 is rotatably connected to the opening end side via a pin 26, and the other end of the link 27 is connected to a holder 50 via a pin 28.
Is rotatably connected to the vicinity of the base.

An engagement surface 42 is provided on the hinge portion 41 of the upper lid 40.
Is formed. The engagement surface 42 is provided between the holder 50 and the link 27.
The holder 50 is interlocked with the upper lid 40 only in a predetermined positional relationship by being engaged with the pin 28 connecting the. Near the hinge 41 on the lower surface of the upper lid 40 ,
Disc ejection spring, which will be described later, via the provided relay spring 55
A pressing piece 46 for pressing the spring 52 and releasing the engagement of the spring is protruded. A lock arm 4 is provided at the center of the tip of the upper lid 40.
4 are protruded. At the center of the side surface of the upper lid 40, an engagement arm 43 is provided to protrude. The engagement arm 43 is engaged with the engagement protrusion 53 of the holder 50 when the upper lid 40 is further opened from a position where the engagement surface 42 is engaged with the pin 28.

A jacket 10 is provided at the tip of the holder 50.
An opening 51 (FIGS. 2 and 3) for inserting / removing is formed. At the base end of the holder 50, a disk ejection spring 52 is provided. The disc ejection spring 52 is provided in the opening 5.
A spring for urging the jacket 10 inserted from 1 into the holder 50 toward the opening 51 side .
The tip pressing part displaces to the base end side of the holder with insertion
I do. Note that the jacket 10 is
When the disc ejection spring 52 is inserted to the insertion position,
The distal end engages with the engaging portion 54 provided on the base end side edge of the holder 50.
And the urging of the jacket 10 is interrupted.
ing. At the center on the right side of the holder 50 in FIG . The engagement arm 43 of the upper lid 40 can be engaged with the engagement protrusion 53.

An urging spring 60 (FIGS. 2 and 3) is provided between the upper lid 40 and the holder 50. Biasing spring 60
Urges the upper lid 40 and the holder 50 in opposite directions.

The operation of this embodiment will be described with reference to FIGS. When opening the upper cover 40 from the closed state (FIG. 2), first, the lock claw 24 (FIG. 1) is moved in the width direction of the apparatus main body 20 to release the engagement of the upper cover 40 with the lock arm 44. As a result, the upper lid 40 is rotated counterclockwise around the pin 45 by the urging force of the upper lid urging spring 30 and the urging spring 60, and the engagement surface 42 of the hinge portion 41 is
8 is engaged. Further, the upper lid 40 is opened by the urging force of the upper lid urging spring 30, the pin 28 is pushed up by the engagement surface 42, and the link 27 swings clockwise about the pin 26, and the base end of the holder 50 Is lifted. As a result, the positioning holes 11 of the jacket 10 are disengaged from the positioning bosses 23 of the apparatus main body 20, and the disc discharging spring 5
The biasing force of 2 attempts to move the jacket 10 to the opening 51 side.

[0014] When you rotate the upper lid 40 is further by the upper lid biasing spring 30, the holder 50 engaging arm 43 is engaged with the engagement projection 53 of the holder 50 is raised. Thus, the holder 50 is inclined and lifted so that the opening 51 is directed obliquely upward (FIG. 3), and the jacket 10 can be taken out smoothly.

To set the jacket 10 on the disk device, first, the jacket 10 is inserted into the holder 50 against the urging force of the disk discharge spring 52 with the upper lid 40 opened (FIG. 3). At this time, jacket 10
Is inserted to the maximum insertion position into the holder 50, the distal end of the disc discharge spring 52 is engaged with the engagement portion 54, and the restoration of the displacement is prevented, so that the urging to the jacket 10 is interrupted. To close the upper lid 40 in this state, the upper lid 4
0 is pressed from above against the urging force of the upper lid urging spring 30, and is rotated clockwise about the pin 45 in the drawing. With the rotation of the upper lid 40, the holder 50 urged toward the apparatus main body 20 by the urging spring 60 also rotates along the movement locus regulated by the link 27. When the holder 50 rotates and approaches the apparatus main body 20,
Positioning hole 1 of jacket 10 housed in holder 50
Numerals 1 are respectively inserted into the corresponding projections of the positioning bosses 23. When the upper lid 40 further rotates, the jacket 1
0 comes into contact with the positioning boss 23 to restrict the movement of the holder 50. Therefore, first, the engagement arm 43 of the upper lid 40 and the engagement protrusion of the holder 50 are opposed to the urging force of the urging spring 60. The engagement with the pin 53 is released, and then the engagement between the engagement surface 42 of the upper lid 40 and the pin 28 is released. When the upper lid is further rotated against the biasing springs 30, 60, the lock arm 44 of the upper lid 40 engages with the lock claw 24 of the apparatus main body 20, thereby locking the upper lid 40 to the apparatus main body 20 (FIG. 2). At the same time, the pressing piece 46 presses the engaged disc discharge spring 52 via the relay spring 55 provided on the upper surface of the holder 50 , and the engagement of the disc discharge spring 52 by the engaging portion 54 is released. The jacket 10 is urged again toward the opening 51 by the disc discharge spring 52. By this biasing and the insertion of the positioning hole 11 and the projection of the positioning boss 23, the jacket 10 is mounted.
It is reliably positioned relative location body 20.

As described above, according to the above embodiment, the upper cover 4
0, the base end side of the holder 50 is first lifted, and the jacket 1 is moved from the positioning boss 23 of the apparatus main body 20.
Since the 0 positioning hole 11 comes off, the jacket 10 can be taken out of the holder 50 smoothly. Also,
It is not necessary to separate the position of the positioning boss 23 of the apparatus main body 20 from the opening / closing fulcrum of the upper lid 40, and the size of the entire apparatus can be reduced. Furthermore, since a link mechanism composed of a combination of a plurality of links is not used, the number of parts and the number of assembling steps can be reduced, and costs can be reduced.

[0017]

As described above, according to the present invention, when the upper lid is opened, it is possible to smoothly take out the jacket containing the disk from the holder, and to reduce the size of the entire apparatus. In addition, the number of parts and the number of assembling steps can be reduced, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a disk device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a state where an upper lid of the disk device of FIG. 1 is closed.

FIG. 3 is a view showing a state where an upper cover of the disk device of FIG. 1 is opened.

FIG. 4 is a perspective view showing a jacket in which a magnetic disk is built.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Jacket 20 Device main body 27 Connecting member 40 Upper lid 42 Engagement surface (first engagement part) 43 Engagement arm (second engagement part) 50 Holder

Claims (2)

(57) [Claims] 1. An apparatus comprising: an upper lid supported by an apparatus main body so as to be openable and closable; and a holder connected to the apparatus main body by a connecting member and capable of accommodating a jacket containing a disk, wherein the upper lid is capable of engaging with the holder. A first engagement portion, and a second engagement portion that can be engaged with a portion of the holder that is more distal than the first engagement portion.
Wherein the first and second engaging portions are disengaged from the holder when the upper lid is opened and closed. 2. The apparatus according to claim 1, wherein the second engaging portion is engaged with the holder at a position where the upper lid is opened more than a position at which the first engaging portion is engaged with the holder. 2. The disk device according to 1.