JP2001266442A - Disk drive - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a 1/2 inch form factoring of an optical disk drive assembly using an 8-cm optical disk. SOLUTION: A pair of right and left tray guide mechanisms 56 for guiding a disk tray 3 of the optical disk drive assembly 1 which places the 8-cm optical disk on the disk tray 3 and loads the disk into a disk drive body 51 are composed of guide grooves 57 which are formed on both right and left outer flanks 3c of the disk tray 3 made of a synthetic resin and guide projections 58, etc., formed by pressing, etc., at both right and left inner flanks 51c of the disk drive body 51 made of a sheet metal. The disk drive body 51 is formed to a width of 90 mm and a height of 12.7 mm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
A device belonging to the technical field of a small and thin disk drive device optimal for recording and / or reproducing an optical disk having a diameter of 8 cm such as a D / R / W or a DVD-RAM (hereinafter simply referred to as an 8 cm optical disk). It is.

[0002]

2. Description of the Related Art At present, a 3.5-inch floppy (registered trademark) disk drive apparatus which is commercially available for a notebook personal computer (hereinafter simply referred to as a notebook personal computer) is formed into a 1 / 2-inch form factor. What is 105mm in width and 12.7mm in thickness
The 3.5-inch floppy disk drive of this size can be inserted into a breast pocket of clothes and carried. However, since the capacity of the 3.5-inch floppy disk drive is very low at about 1.44 MB,
It is desired to develop a high-capacity disk drive of the same size as or smaller than the 3.5-inch floppy disk drive.

Therefore, the applicant of the present invention has proposed FIGS.
An optical disk drive device 81 having a 1/2 format factor has already been developed for use in a notebook personal computer disclosed in Japanese Patent Application Laid-Open No. 9-237454. The optical disk drive 81 is a CD-
8 cm optical disk 82 such as ROM
Mounted on the disk drive main body 91, arrows a,
It is configured to take in and out (loading and unloading) in the b direction.

The disk tray 83 is made of synthetic resin or the like, and has a vertically elongated front panel 84 integrally formed at the front end thereof, and a substantially circular recess for mounting a disk on the upper surface 83a. 85 are formed. A spindle motor 87 having a self-chucking mechanism 86 is mounted at the center of the recess 85, and one side of the spindle motor 87 is directed in the directions of arrows a and b in which the disc tray 83 is inserted and removed. The optical pickup 88 is sought in directions indicated by arrows c and d which are inclined at a predetermined angle with respect to the optical pickup 88. The front panel 84 has 7 eject buttons 8
9, a volume, a headphone jack (all not shown) and the like are attached.

The disk drive main body 91 is formed in a flat, rectangular box shape by fitting a bottom case 92 and a top case 93, which are formed by pressing a sheet metal, from above and below and screwing them together. . A tray entrance 94 formed at the front end of the disk drive main body 91 is open over the entire area of the front end. A pair of left and right tray guide mechanisms 95 for taking the disk tray 83 into and out of the disk drive main body 91 in the directions of arrows a and b from the tray entrance 94 are integrally formed on the left and right outer surfaces 83b of the disk tray 83. A guide rail 96 and a main body side guide rail 9 attached to both left and right inner side surfaces 91 a of the disk drive main body 91.
7, an intermediate guide rail 98 disposed between the tray side guide rail 96 and the main body side guide rail 97 and slidably engaged with both the tray side guide rail 96 and the main body side guide rail 97. The guide rail structure is configured to be telescopic. However, a pair of left and right tray-side guide rails 96 are integrally formed with a lower cover 99 attached to a lower portion of the disk tray 83.

The optical disk drive 81
So as to correspond to the 1/2 inches formats, the thickness of the disk drive unit 91 (height) H ₁₁ is 12.7m
m. The optical disk drive device 81 is incorporated in a notebook personal computer or the like, and an external interface attached to the rear end of the disk drive main body 91 is connected to a connector (neither is shown) in the notebook personal computer. It is configured as a so-called built-in type optical disk drive device 81 to be connected and used. According to the optical disk drive 81, the recording capacity of the 8 cm optical disk 52 is 200
High capacity (high density recording) such as MB or more can be achieved.

[0007]

However, this conventional optical disk drive device 81 is configured as a pair of left and right tray guide mechanisms 95 in a telescopic structure in which three guide rails 96, 97, 98 are engaged in a telescopic manner. Because
The number of parts and the assembly structure are large, there is a problem in productivity, and the cost is extremely high.

In addition, the three guide rails 96, 9
A pair of right and left tray guide mechanism 95 of the telescopically engaged with telescopic structure 7,98 is not a major obstacle to reducing the width W ₁₁ of the disk drive main body 91, the width of the disk drive unit 91 W ₁₁ is very difficult to be reduced to less than 128mm. Therefore, it is unsuitable to insert the optical disk drive 81 into a breast pocket of clothes and carry it like the above-mentioned 3.5-inch floppy disk drive with a width of 105 mm.

Furthermore, the conventional optical disk drive 81 is originally developed as a built-in type dedicated machine in a computer device such as a notebook personal computer. The optical disk drive 81 is detached from the notebook personal computer or the like. It was impossible to insert it into a breast pocket of clothes, carry it, and play outdoors.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a high capacity disk capable of achieving a small size and a thin shape capable of coping with a 1/2 inch form factor of a 3.5 inch floppy disk drive. It is an object of the present invention to provide a drive device and a disk drive device that can be removed from a computer device such as a notebook personal computer and carried and played outdoors.

[0011]

According to a first aspect of the present invention, there is provided a disk tray having a front panel formed at a front end and a disk mounting recess formed at an upper surface. A disk drive main body formed in a flat box shape through which a disk tray is inserted and withdrawn from a tray entrance formed at a front end, and one of right and left outer surfaces of the disk tray and left and right inner surfaces of the disk drive main body; And a pair of left and right tray guide mechanisms is constituted by the guide groove provided on the other side and the guide protrusion provided on the other side. According to a second aspect of the present invention, there is provided a disk tray in which a front panel is formed at a front end and a disk mounting recess is formed on an upper surface, and a flat plate into which a disk tray is inserted and removed from a tray entrance formed at a front end. A disk drive body formed in a simple box shape, and a plurality of operation units for performing play operation, eject operation, volume operation, etc. are provided on a front panel of the disk tray, and a computer device is provided at a rear end of the disk drive body. And an external interface for connecting the portable power supply pack to the disk drive body.

In the disk drive apparatus according to the first aspect of the present invention configured as described above, the pair of left and right tray guide mechanisms are constituted only by the guide grooves and the guide projections, so that the width of the disk drive body is greatly reduced. can do.
According to a second aspect of the present invention, a plurality of operation units for performing a play operation, an eject operation, a volume operation, and the like are provided on a front panel of a disk tray, and a plurality of operation units for connecting a disk drive body to a computer device are provided. Since the external interface and the detachable portable power supply pack are provided, two types of use are possible: built-in use in a computer device and portable use outdoors.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disk drive device to which the present invention is applied will be described below with reference to FIGS.

First, an optical disk drive 1 as a disk drive is a 1/2 format factor developed for use in a notebook type personal computer or the like, and has a high format capacity such as a CD, CD-R / RW, and DVD-RAM. An 8 cm optical disk 2 having a capacity (high density) is mounted on the disk tray 3 and arrows a and b are provided in the disk drive body 51.
In and out (loading and unloading)
Thus, recording and / or reproduction of the optical disk 2 is performed.

The disk tray 3 is made of a synthetic resin or the like. A vertically elongated front panel 4B is integrally formed at the front end of the tray body 4A, and a disk mounting plate is provided on the upper surface 3a of the tray body 4A. Are formed. An opening 6 having a polygonal shape is formed at the bottom of the recess 5.
A unit base 7 pressed by a sheet metal or the like is inserted horizontally with a clearance in the opening 6 thereof. At the lower part of the unit base 7, mounting pieces 7a formed at a plurality of locations on the outer periphery are fixed to the lower surface 3b of the disc tray 3 by a plurality of screws 9 via a plurality of insulators 8 made of an elastic member such as rubber. Screws are fixed.

A spindle motor 11 is vertically screwed to a lower portion of the unit base 7 by a motor board 12 at a lower end thereof, and a disk table 13 integrally formed on an upper end of a rotor of the spindle motor 11 is provided. The disc table 13 is disposed at the center position of the recess 5 by passing through the circular hole 14 formed in the unit base 7 and protruding above the unit base 7.
Self-chucking mechanisms 13b are attached to three locations on the outer periphery of a centering guide 13a integrally formed at the upper center of the disk table 13.

An optical pickup 15 serving as data pickup means is attached to a lower portion of the unit base 7, and the optical pickup 15
6, an objective lens 17 mounted vertically upward on the upper part of the sled 16, and a laser beam irradiated to the objective lens 17 incorporated in the sled 16 and receiving the reflected light of the laser beam An optical block (not shown) for recording and / or reproducing data. The objective lens 16 is inserted through a long hole 18 formed in the unit base 7 and protrudes above the unit base 7.
1 is inclined at a predetermined angle. A sled moving mechanism 21 is attached to a lower portion of the unit base 7. The sled moving mechanism 21 is a main guide shaft 22 and a sub guide shaft 23 which also serve as a feed screw for driving the sled 16 by a spiral groove formed on the outer periphery. Between thread 16
Of the objective lens 1 integrally with the sled 16 by rotating the main guide shaft 22 via a reduction gear train 25 by a sled drive motor 24.
7 between the main guide shaft 22 and the sub guide shaft 23
Are transported along the arrows c and d.

On the front panel 4B of the disc tray 3, play buttons 26, an eject button 27, a volume dial 28, etc., which are operation parts for performing a play operation, an eject operation, a volume operation, etc. , A headphone jack 30, a needle insertion hole 31 for emergency eject operation, and the like. A play switch 26a, an eject switch 27a, and a volume 28a facing the play button 26, the eject button 27, and the volume dial 28 are mounted on the rear surface of the front panel 4B.

At the back of the front panel 4B, behind the needle insertion hole 31, a lock lever 32 is attached rotatably in the directions of arrows e and f about a fulcrum shaft 33 fixed to the lower surface 3b of the disc tray 3. An automatic unlocking mechanism 34 for unlocking the lock lever 32 in the direction of arrow f by an eject command signal from the eject switch 27a or the host computer is mounted on the lower surface 3b of the disk tray 3 at a position near the lock lever 32. I have. The automatic lock release mechanism 34 is driven by an ejection motor 35 to reduce the speed of the gear train 3.
The lock lever 32 is configured to be rotatable in the direction indicated by the arrow f via the spring 6 against a spring (not shown) for urging the rotation in the direction indicated by the arrow e.

Next, the disk drive main body 51 is formed in a flat and square box shape by fitting a bottom case 52 and a top case 53 pressed from a sheet metal from above and below and fastening them with a plurality of screws 54. It was done.
The tray entrance 55 formed at the front end 51a of the disk drive main body 51 is open over the entire area of the front end 51b, and the rear end 51b is configured as a closed end.

A pair of left and right tray guide mechanisms 56 for taking the disk tray 3 into and out of the disk drive body 51 from the tray entrance 55 in the directions of arrows a and b.
A guide groove 57 formed horizontally along the left and right outer surfaces 3c formed at the lower end of the disk tray 3 and an appropriate space along the lower ends of the left and right inner surfaces 51c of the disk drive body 51. And a plurality of guide projections 58 formed therebetween.

At this time, as shown in FIG. 7A, a plurality of guide projections 58 are provided on the left and right side plates 52 of the bottom case 53.
7A, and as shown in FIG. 7B, if a part of the left and right side plates 52a is processed to be drawn inward by press drawing, the entire bottom case 52 is formed. The plurality of guide projections 58 can be simultaneously processed at the time of the press working, and the cost can be reduced by reducing the number of processing steps. However, FIG.
As shown in (C), the left and right side plates 5 of the bottom case 53
A plurality of pin-shaped guide projections 58 can be swaged and stopped 59 inside the 3a. If this swaging method is adopted, the pin-shaped guide projections 58 allow the sliding characteristics and sliding accuracy of the guide groove 57. Can be improved. Note that it is also possible to employ a rail-shaped guide projection 58 in which a plurality of guide projections 58 are interconnected. Further, guide grooves 57 forming a pair of left and right tray guide mechanisms 56 are formed on both left and right inner side surfaces 51c of the disk drive main body 51, and a plurality of guide protrusions 58 are formed.
(Or the rail-shaped guide projection 58) may be formed on both left and right outer side surfaces 3c of the disk tray 3.

At the position near the front end 51a of the disk drive main body 51, a lock pin 32 on the bottom case 52, on which the lock lever 32 of the disk tray 3 is engaged and removably engaged in the directions of arrows e and f. 61 is mounted vertically. As shown in FIGS. 1, 4 and 6, a pair of left and right stoppers for stopping the disc tray 3 at its eject position when the disc tray 3 is unloaded outside the disc drive body 51 in the direction of arrow b. A projection 37 is provided on the disk tray 3 side, and a pair of left and right stoppers 62 are provided on the disk drive main body 51 side. The pair of left and right stopper projections 37 is composed of small projections integrally formed on the lower surfaces of the left and right ends of the rear end 3c of the disk tray 3, and the pair of left and right stoppers 62 is the front end 51 of the disk drive body 51.
In FIG. 5, the bottom case 52 is formed by cut-and-raised pieces that are cut and raised from both left and right ends of the bottom case 52.

At the rear end 51b in the disk drive body 51, an interface board 63 is horizontally mounted by a plurality of screws 64 at a position deviated to one side, and is mounted on the upper surface of the interface board 63. A rectangular opening 6 formed at a position where an external interface 65 as a mounted multi-connector is deflected to one side of a rear end 51b of the disk drive main body 51.
6 are disposed facing each other. The connection connector 67 mounted on the lower surface of the interface board 63 and the connection connector 38 mounted on the lower surface 3b of the disk tray 3 are connected by a flexible printed board 68 having a sufficient length. I have.
The flexible printed board 68 is formed in a substantially U-shape, and is connected to the connection connector 38 with its front end inverted in the direction of arrow b, which is the front side. The connection between the connector 38 and the spindle motor 11, the sled 16, the sled moving mechanism 21, the play switch 26a, the eject switch 27a, the volume 28b, the LED 29, the headphone jack 30, the automatic lock removing mechanism 34 and the like are not shown. Electrically connected by the wiring means.

Then, on the lower surface 3b of the disc tray 3,
A spring contact portion 39 is integrally formed at a position near the rear end opposite to the lock lever 32. This spring contact portion 39 is perpendicular to the directions of arrows a and b, and
It is configured in a vertical plate shape. In the disk drive main body 51, a torsion coil spring 70 constituting an ejecting spring is located at the same phase position as the spring contact portion 39 at a position near the rear end 51b and at a position near the interface board 63. Installed. As shown in FIG. 8, the torsion coil spring 70
a, a fixed end 70b and a working end 70c which are drawn out of the coil portion 70a into a substantially V-shape, and a stepped screw 71 inserted into the coil portion 70a.
It is mounted on the bottom case 52 by the like.
The fixed end 70b of the torsion coil spring 70 is pressed against one side surface of a plurality of screw fixing bosses 72 drawn on the bottom case 52 to screw the interface board 63 onto the bottom case 52. The disk tray 3 is attached to the working end 70c, which is fixed so as to bend in the directions of arrows g and h around the coil portion 70a.
The spring contact portion 39 is configured to contact from the direction of arrow a.

As shown in FIG. 8, the working end 70c of the torsion coil spring 70 applies an ejecting force F having a substantially constant torque to the spring contact portion 39 of the disc tray 3 in the direction of arrow b. It is bent approximately S-shaped for the purpose. At this time, the spring contact portion 39 of the working end 70c
The tip portion 70d contacting the spring contact portion 39 with the spring contact portion 39 is formed in a substantially semicircular shape having a convex shape with respect to the spring contact portion 39, and the relief portion 70e formed at the root of the working end 70c with respect to the spring contact portion 39e. Is formed in a substantially semicircular concave shape with respect to the spring contact portion 39, and since the contact portion 70d and the relief portion 70e are formed in semicircular arcs opposite to each other, the entire working end 70c is formed. It is formed almost in an S-shape.

A portable power pack 74 is detachably attached to the outside of the rear end 51b of the disk drive main body 51, as shown by a dashed line in FIGS. 2, 3 and 5. , The portable power pack 75 is connected to the external interface 65 of the disk drive main body 51.
The opening 66 is also used as a closing cover member. That is, the opening 6 at the rear end 51b of the disk drive body 51
6, the portable power pack 74 is connected to the horizontal position.
The portable power supply terminal 75 is attached, and a locking mechanism 76 of the portable power supply pack 74 is attached beside the portable power supply terminal 75. Then, by inserting the portable power supply pack 74 into the locking mechanism 76 in the direction of the arrow i, the portable power supply pack 74 is attached to the outside of the rear end 51b of the disk drive body 51 and locked.
The portable power pack 74 is configured to be connected to the portable power terminal 75. Then, when the portable power pack 74 is pulled out from the locking mechanism 76 in the direction of arrow j, the opening 66 of the external interface 65 is opened.

The optical disk drive 1 using the 8 cm optical disk 2 according to the present invention is configured as described above. First, as shown in FIGS. 1, 2, 4, 5 and 7, a pair of right and left optical disks is provided. A guide groove 57 in which the tray guide mechanism 56 is integrally formed on the left and right outer surfaces 3c of the tray body 4A of the disk tray 3, and a plurality of guide protrusions formed on the left and right inner surfaces 51c of the disk drive body 51 by press working or the like. 58 only a very simple, since it is configured in a small space structure, that would substantially is easily accommodated within the entire width W ₂ of the tray main body 4A of the disk tray 3 showing the right and left pair tray guide mechanism 56 in FIG. 5 it can. In addition, the pair of left and right tray guide mechanisms 56
Since it is composed of the minimum number of components including only the guide 7 and the guide projection 58, the structure is simple, the number of parts and the number of assembly steps are small, the productivity is high, and the cost is low.

As a result, as shown in FIG. 5, the width W ₁ of the disk drive main body 51 is changed to the width W ₁ +2 of the tray main body 4A.
T (however, T = the thickness of the left and right side plates 52a of the bottom case 52) can be configured to have a minimum size, and as shown in FIGS. 2 and 3, the disk drive body 51 of the optical disk drive device 1 The width W ₁ = 90 mm, the height (thickness) H ₁ = 12.7 mm, and the depth D ₁ = 105 mm.

The optical disk drive 1 has a width W ₁ = 90 mm, a height H ₁ = 12.7 mm, and a depth D.
₁ = 105 mm can be accommodated with sufficient margin within a width of 105 mm and a height of 12.7 mm, which are 1/2 inch form factors of a conventional 3.5-inch floppy disk drive (in particular, width W ₁ = 90 mm The optical disk drive device 1 can be easily inserted into a breast pocket of clothes and carried easily outdoors or the like.

However, this optical disc drive device 1 uses an 8 cm CD, 8 c
Data is recorded and / or recorded on a high capacity (high density) 8 cm optical disk 2 such as mCD-R / RW, 8 cm DVD-RAM, etc.
Alternatively, the recording medium can be reproduced, and a high recording capacity (high density) can be sufficiently satisfied. That is, the recording capacity of a 3.5-inch floppy disk is 1.
It was about 44MB, but it was 1.46GB for 8cm DVD-RAM, 400 times more dense than 8cm CD-R / RW.
It can have a high capacity of 200 MB each in MB and the current CD-R / RW.

Next, a method of using the optical disk drive 1 will be described. First, in a normal use state,
The optical disk drive 1 is incorporated in a computer device such as a notebook computer, and an external interface 65 is connected to a connector in the computer device through an opening 66 to be used as a built-in type.

As shown in FIGS. 2, 3 and 5, when the disk tray 3 is completely pushed into the disk drive body 51 from the tray entrance 55 in the direction of arrow a (loading state), FIGS. 6, the lock lever 32 is engaged with the lock pin 61 from the direction of the arrow e, and the disk tray 3 is locked in the disk drive main body 51. When the disc tray 3 is locked, as shown by a solid line in FIG. 8, the spring contact portion 39 of the disc tray 3 contacts the tip end 70d of the working end 70c of the torsion coil spring 70 in the direction of arrow a. The tip 70d is bent in the direction of arrow g against the spring force, and the ejection force F of the disk tray 3 in the direction of arrow b is charged.

However, at this time, while the spring contact portion 39 is inserted in the direction of the arrow a from the position indicated by the dashed line to the position indicated by the solid line in FIG. 70d is P ₂ from the contact point P ₁ with respect to the spring abutment 39
Only stroke S ₁ slides along the spring rest 39 up to P ₃ through. However, in the meantime, the working end 70
Since the base side of the coil part 70a to the coil part 70a escapes from the spring contact part 39 through the escape part 70e from the beginning, and the base part side of the working end 70c contacts the spring contact part 39,
The distal end portion 40d rises in the direction of arrow a from the spring contact portion 39, and the ejecting force F of the working end 70c pressing the spring contact portion 39 in the direction of arrow b changes in the middle (in this case, It is possible to prevent the ejection force F from becoming abnormally large in the middle).

Therefore, as shown in FIGS. 2, 3 and 5, when the front panel 4BB of the disk tray 3 is pushed by hand, the disk tray 3 is pushed into the disk drive body 51 in the direction of arrow a. The disc tray 3 is always smoothly pushed from the direction of arrow a into the disc drive main body 51 with almost constant torque without causing any uncomfortable feeling that the ejecting force F of the torsion coil spring 70 suddenly rises on the way. Can be.

Next, when the disc tray 3 is unloaded, the eject button 27 shown in FIGS.
The eject motor 35 of the automatic lock release mechanism 34 shown in FIG. 6 is driven, and the lock lever 32 shown by the one-dot chain line in FIGS. 4 and 6 is rotationally driven in the direction of arrow f via the gear train 36. As a result, the disc tray 3 is released from the lock pin 61 and the disc tray 3 is unlocked.

Then, the torsion coil spring 7 shown in FIG.
The working end 70c of 0 is changed from the position of the solid line to the position of 1
It is rotated by the spring force in the direction of arrow h to the position indicated by the dashed line, and the tip end 70d of the working end 70c moves the spring contact portion 39 of the disc tray 3 from the position indicated by the solid line to the position indicated by the dashed line via the position indicated by the dotted line can be extruded only automatically stroke S ₂ equivalent in the direction of arrow b.

When the disc tray 3 is automatically pushed in the direction of arrow b, the spring abutment portion 39 is pushed in the direction of arrow b from the position indicated by the solid line to the position indicated by the dashed line in FIG. While the tip 7 of the working end 70c
0d slides by a stroke S ₁ along the spring rest 39 up to P ₁ from the contact point P ₃ with respect to the spring abutting portion 39 via the P _2. However, in the meantime, the root of the working end 70c to the coil portion 70a escapes from the spring contact portion 39 by the escape portion 70e from the beginning to the end.
The root of c contacts the spring contact portion 39, so that the ejection force F of the disk tray 3 in the direction of arrow b does not change in the middle.

[0039] Thus, the disk tray 3 by a stroke S ₂ equivalent by ejecting force F substantially constant torque by the coil spring 70 torsion from the tray entrance 55 in the disk drive main body 51 in the direction of the arrow b safe, and a pop-up system smoothly And can improve the operational feeling. And
Thereafter, as shown in FIGS. 1, 4 and 6, the user puts his hand on the front panel 4BB of the disk tray 3 and pulls out the disk tray 3 in the direction of arrow b to the unloading position outside the disk drive main body 51. The pair of left and right stopper projections 37 at the bottom of the disc tray 3 are brought into contact with the pair of left and right stoppers 62 of the bottom case 52 of the disc drive body 51, and the disc tray 3 is stopped at its unloading position.

By the way, as shown in FIG. 8, the working end 70c of the torsion coil spring 70 is
When adopting a structure that is bent substantially into an S shape by e and
A spring rest 39 of the disk tray 3, and it is possible to significantly reduce the span between the coil portion 70a of the torsion coil spring 70, contributes to the reduction of the width W ₁ and depth D ₁ of the disk drive unit 51 The degree to do it increases.

Next, when loading the 8 cm optical disk 2, as shown in FIGS. 1 and 2, the 8 cm optical disk 2 is positioned substantially at the center of the disk tray 3 by the center hole 2 a in the recess 5 of the disk tray 3. It is inserted from above into the outer periphery of the centering guide 13a of the disk table 13, mounted horizontally on the disk table 13, and chucked by a plurality of self-chucking mechanisms 13b.

After chucking of the 8 cm optical disk 2, the front panel 4 BB of the disk tray 3
2, 3 and 5, the disk tray 3 is loaded into the disk drive main body 51 from the tray entrance 55 in the direction of arrow a, as shown in FIGS. Is locked to the lock pin 61 by the lock lever 32. Then, the spindle motor 11 is driven to rotate at a high speed by a play command signal from the host computer,
8cm optical disk 2 integrated with the disk table 13
Are driven to rotate at a high speed. Then, the sled drive motor 24 of the sled moving mechanism 21 shown in FIG.
Is driven in the directions of arrows c and d while being guided by the main guide shaft 22 and the sub guide shaft 23, and the objective lens 1
High-capacity (high-density) recording and / or reproduction of data is performed by a laser beam applied to the lower surface of the 7 to 8 cm optical disc 2.

After recording and / or reproducing the data of the 8-cm optical disc 2, the user presses the eject button 27 on the front panel 4BB of the disc tray 3 to turn on the eject switch 27a, or receives an eject command signal from the host computer. Then, as described above, the lock lever 32 is
There is automatically disengaged from the lock pin 61, so that the disk tray 3 by the torsion coil spring 70 is pushed out by automatically pop up manner by a stroke S ₂ equivalent in the direction of arrow b from the disk drive unit 51. Accordingly, thereafter, as described above, the disk tray 3 is manually pulled out to the unloading position in the direction of arrow b, and
The cm optical disk 2 can be easily removed from the disk table 13 against the chucking force of the self-chucking mechanism 13b.

As shown in FIGS. 2, 3 and 5,
The disc tray 3 is loaded into the disc drive main body 51 in the direction of arrow a, and the eject button 27 is pressed while the lock lever 32 is locked on the lock pin 61 as shown by a dashed line in FIGS. When the disk tray 3 cannot be pushed out of the disk drive main body 51 in the direction of arrow b, the needle (not shown) is inserted into the needle insertion hole 31 for emergency shown in FIG. 4 and 6, the lock lever 3 shown by a chain line in FIGS.
2 is mechanically rotated in the direction of arrow f against the rotation urging spring (not shown) to remove it from the lock pin 61, and the disc tray 3 is safely pushed out in the direction of arrow b by the torsion coil spring 70. Can be.

Next, the optical disk drive 1 of the present invention
Is attached to a locking mechanism 76 at the rear end 51b of the disk drive main body 51, as shown by a dashed line in FIGS. Then, the portable power supply pack 74 is connected to the pair of portable power supply terminals 75, and the opening 66 of the external interface 65 is connected to the portable power supply pack 7.
4, the optical disk drive 1 can have a high degree of cold protection. The optical disk drive device 1 is evolved from a built-in type in a computer device to a portable type, and the optical disk drive device 1 is a portable type capable of recording and / or reproducing data with a high capacity on an 8 cm optical disk 2. It can be used as a small computer device.

That is, when the optical disk drive device 1 is carried, power can be supplied by the portable power supply pack 74, so that loading and unloading of the 8-cm optical disk 2 can be performed in the same manner as described above, and the front panel 4BB of the disk tray 3 can be supplied. As described above, the 8 cm optical disc 2 is rotated at a high speed by the spindle motor 11 by the operation of the play switch 26a by the play button 26 provided on the optical disk drive, the operation of the volume 28a by the volume dial 28, and the like.
The objective lens 17 is seeked integrally with the sled 16 by the sled moving mechanism 21 of FIG.
Various data such as audio, video, and character information can be recorded and / or reproduced outdoors.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made based on the technical concept of the present invention. For example, various disks such as an optical disk, a magnetic disk, and a magneto-optical disk can be applied as the disk as the recording medium of the present invention.

[0048]

The disk drive device of the present invention configured as described above has the following effects.

The disk drive device of the first invention has a structure in which the pair of left and right tray guide mechanisms are constituted only by guide grooves and guide protrusions, so that the width of the disk drive body can be greatly reduced. Simplification, reduction in the number of parts and the number of assembly steps, an improvement in productivity, and a reduction in cost, thereby realizing a small and thin high-capacity disk drive.

In the disk drive device of the first invention, since the disk tray is provided with the spindle motor having the self-chucking mechanism and the data pickup means, the disk drive device can be made smaller and thinner.

In the disk drive device of the first invention, the guide grooves of the pair of left and right tray guide mechanisms for guiding the disk tray are integrally formed on the left and right outer surfaces of the synthetic resin disk tray, and the guide projections are made of sheet metal. Since the left and right inner surfaces of the disk drive body are formed by press working or crimping, high productivity and cost reduction can be achieved.

In the disk drive device of the first invention, the width of the disk drive main body is set to 105 mm or less and the height is set to 12.7 mm or less. The form factor can be achieved, and the high-capacity disk drive device can be easily inserted into the breast pocket of clothes, and can be carried around outdoors.

In the disk drive device of the first invention, when the disk tray is loaded into the disk drive body, the working end of the torsion coil spring is bent against the spring force by the spring contact portion provided on the disk tray. With the ejection force of the disc tray charged, the disc tray is locked into the disc drive body by the lock lever and lock focus, and the disc tray is moved from the disc drive body by a constant stroke by the spring force of the working end of the torsion coil spring. In this case, the working end of the torsion coil spring is bent substantially into an S-shape, and the tip end of the working end of the torsion coil spring abutting on the spring contact portion, and the root of the working end The relief part for the spring contact part formed on the side is bent in the opposite direction, At the time of loading and unloading of the torsion coil spring, make sure that the root of the working end of the torsion coil spring always escapes to the spring contact part by the relief part, and only the tip end of the working end to the spring contact part. It can be stably contacted, and it can be prevented beforehand that the root of the working end is inadvertently brought into contact with the spring contact portion during the loading of the disc tray and the ejecting force is changed. . Therefore, the loading of the disc tray and the unloading of the pop-up system can always be performed stably with a constant torque, and the operational feeling can be improved. Further, the span between the spring contact portion and the coil portion of the torsion coil spring can be reduced, and the miniaturization of the disk drive device can be promoted.

In the disk drive apparatus of the second invention, a plurality of operation sections for performing a play operation, an eject operation, a volume operation, and the like are provided on a front panel of a disk tray, and an external part for connection to a computer device is provided on the disk drive body. An interface is provided and a portable power pack is detachably provided, so that this disk drive device can be used in two ways: built-in use in a computer device and portable use outdoors. It can be used as a new small, lightweight computer device that is easily portable.

The disk drive device of the second invention is a portable power pack detachably attached to the disk drive body and also serves as a cover member for closing the external interface, so that the cost can be reduced by using common components. In addition to that, it is possible to improve the dust resistance when the device is carried outdoors.

[Brief description of the drawings]

FIG. 1 is a perspective view of an optical disc drive device according to an embodiment of the present invention in an unloading state.

FIG. 2 is a perspective view of the loading state of the optical disk drive device as viewed from the front panel side.

FIG. 3 is a perspective view of the optical disk drive of FIG. 2 as viewed from the rear end side.

FIG. 4 is a top view of the optical disk drive device of FIG. 1 with a top case removed.

FIG. 5 is a plan view of the optical disk drive device of FIG. 2 with a top case removed.

FIG. 6 is a bottom view of the optical disk drive of FIG. 1;

7 is an enlarged cross-sectional view of the optical disk drive device of FIG. 5 as viewed in the direction of arrows AA, and a partial enlarged cross-sectional view of a main part.

FIG. 8 is an enlarged plan view illustrating the operation of the torsion coil spring for pushing out the disk tray of the optical disk drive device of the above.

FIG. 9 is a perspective view of a conventional optical disk drive device.

FIG. 10 is an exploded perspective view of the entire optical disk drive device of FIG. 10;

11 is an exploded perspective view of a part of the optical disk drive device of FIG.

[Explanation of symbols]

1 is an optical disk drive, which is a disk drive, 2 is an 8 cm optical disk, 3 is a disk tray, 4A
Is the main body of the disc tray, 4B is the front panel of the disc tray, 5 is a recess, 11 is a spindle motor, 13
Is a disk table, 13a is a centering guide of the disk table, 13b is a self-chucking mechanism,
Reference numeral 15 denotes an optical pickup as data pickup means, 26 denotes a play button as a play operation unit, 27 denotes an eject button as an eject operation unit, 28 denotes a volume dial as a volume operation unit, 32 denotes a lock lever,
9 is a spring contact portion, 51 is a disk drive body, 52 is a bottom case, 53 is a top case, 55 is a tray entrance, 56 is a tray guide mechanism, 57 is a guide groove of the tray guide mechanism, and 58 is a guide of the tray guide mechanism. Protrusion, 6
1 is a lock pin, 65 is an external interface, 70 is a torsion coil spring, 70a is a coil portion of the torsion coil spring,
70b is the fixed end of the torsion coil spring, 70c is the working end of the torsion coil spring, 70d is the tip of the working end, 70e is the relief at the root of the working end, 74 is a portable power pack, 76
Is a locking mechanism.

Claims (7)

[Claims] 1. A disk tray having a front panel formed at a front end and a disk mounting recess formed on an upper surface, and a flat box shape into which the disk tray is inserted and removed from a tray entrance formed at a front end. A disk drive main body, a guide groove provided on one of left and right outer surfaces of the disk tray and left and right inner surfaces of the disk drive body, and a guide projection provided on the other. And a pair of left and right tray guide mechanisms for guiding the disk tray. 2. The disk drive device according to claim 1, wherein a spindle motor having a self-chucking mechanism for the disk and data pickup means are mounted on the disk tray. 3. The disk tray is made of a synthetic resin, a pair of left and right guide grooves are formed on both left and right outer surfaces of the disk tray, and the disk drive body is pressed by a sheet metal.
2. The disk drive body according to claim 1, wherein a plurality of guide projections for guiding a pair of left and right guide grooves of the disk tray are formed by pressing or crimping on both left and right inner surfaces of the disk drive body. Disk drive device. 4. The disk drive body has a width of 105 m.
4. The disk drive device according to claim 1, wherein the height is 1 m or less and the height is 12.7 mm or less. And a spring contact portion formed on the lower surface on the rear end side of the disk tray at right angles to a direction in which the disk tray is taken in and out, and attached to a rear end side in the disk drive body. A torsion coil spring that pushes the disk tray out of the disk drive body by pressing a spring contact portion with an operating end; a lock lever attached to the disk tray; and the lock provided in the disk drive body. And a lock pin with which the lever is engaged and disengaged. The working end of the torsion coil spring is bent substantially into an S-shape.
The tip of the working end is contacted with the spring contact portion, and the escape portion for the spring contact formed at the root of the working end is bent in opposite directions. The disk drive device according to claim 1, wherein: 6. A disk tray having a front panel formed at a front end and a disk mounting recess formed at an upper surface, and a flat box shape into which the disk tray is put in and out through a tray entrance formed at a front end. And a plurality of operation units provided on the front panel of the disk tray for performing play operation, eject operation, volume operation, and the like, and provided at the rear end of the disk drive main body to a computer device. A disk drive device comprising: an external interface to be connected; and a portable power supply pack detachably attached to the disk drive body. 7. The disk drive device according to claim 6, wherein said portable power pack is also used as a closing cover member of said external interface.