JP2558612Y2 - Disk drive - 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, and more particularly, to a disk drive used by mounting a disk cartridge containing a magnetic disk as an information recording medium.

[0002]

2. Description of the Related Art A conventional disk drive of this type includes a lower cover, a chassis made of an aluminum alloy, a cartridge holder supported by the chassis so as to be able to move up and down, and holding a disk cartridge when it is inserted into the apparatus. A turntable for mounting a magnetic disk housed in a disk cartridge case, a spindle motor arranged on the bottom side of the chassis for driving the turntable, and a back yoke attached to the spindle motor. Holds an upper magnetic head and lower magnetic head for writing / reading signals to and from both sides of a printed circuit board connected to a spindle motor, a magnetic disk loaded on a turntable, and an upper magnetic head at a free end To hold the lower magnetic head Is mainly composed of the hold case a carriage for rotation support, a stepping motor for transporting the carriage in the radial direction of the magnetic disk.

The raising and lowering operation of the cartridge holder is performed by a known cam mechanism interlocked with the operation of a movable slide plate. That is, when the disk cartridge is inserted to the innermost portion in the cartridge holder, the eject arm is locked by the lock lever with the shutter of the disk cartridge opened, and at the same time, the slide plate is unlocked, and the elastic force of the spring is released. As a result, the slide plate moves to the cartridge insertion port side, and with this movement, the cam mechanism lowers the cartridge holder to the load position. Also, when the eject button connected to the slide plate is pushed in when the cartridge holder is at the load position, the cartridge holder is raised by the cam mechanism as the slide plate moves to the back side, and the lock lever and The eject arm rotates and the disk cartridge moves to the cartridge insertion port side with the shutter closed, and is ejected from the cartridge insertion port to the outside of the apparatus.

The cartridge holder is provided with an upper head lifting portion (hereinafter, referred to as an arm portion), and the load arm portion of the hold case comes into contact with the arm portion by the above-described vertical movement of the cartridge holder. A mouth opening operation is performed.

[0005]

By the way, as shown in FIG. 13, a disk drive of this type has a slide plate 8 as shown in FIG.
2 is provided below the cartridge holder 81, and a stopper 84 to which the rear end portion 83a of the eject button 83 contacts is provided at the front end 80a of the chassis 80 to prevent the eject button 83 from being pushed too far. However, if the disk drive is made thinner and the slide plate is positioned above the cartridge holder, it is not possible to provide a stopper at the front end of the chassis and prevent the eject button from being pushed too much as in the conventional case.

In a conventional disk drive, a head cable, components of a control board, a stepping motor and a screw shaft are arranged below or behind a cartridge holder. Such a structure is disadvantageous in reducing the thickness and size of the disk drive. In order to reduce the thickness and size of the cartridge holder, it is conceivable to extend the arm from the rear end of the cartridge holder. For example, in the case of the conventional cartridge holder 11 without ribs shown in FIG. To arm 6
0, the tip 60a is 0.3
The upper magnetic head 6 and the disk cartridge 1 are bent when the upper magnetic head 6 is insufficiently lifted by 1 mm and 0.28 mm and the amount of lifting of the upper magnetic head 6 is insufficient.
There was a possibility that the head might be damaged by hitting 0.

The present invention has been made in view of such circumstances, and a first object of the present invention is to provide a disk drive capable of reducing the thickness and preventing the eject button from being pressed too much.

A second object of the present invention is to suppress the deformation of the arm portion of the cartridge holder and reduce the lifting amount of the upper head even if the arm portion is extended from the rear end of the cartridge holder to reduce the thickness and size of the cartridge holder. An object of the present invention is to provide a disk drive device which is sufficient and prevents the head from being damaged by collision between the head and the disk cartridge during insertion and ejection of the disk cartridge.

[0009]

A first object of the present invention is to have a plate-like upper surface portion and a cartridge insertion port,
And Luca over cartridge holder be stored by inserting the disc cartridge, along said insertion and removal direction of the disc cartridge is slidably disposed, said cartridge holder
A slide plate having a cam portion for lifting the said Katori
And provided on the cartridge holder and engaged with the cam portion,
The cartridge holder is linked to the slide movement of the guide plate
And a protrusion on the upper surface of the cartridge holder.
An engaging portion for engaging with the cartridge portion and a head, wherein the cartridge
Hold case that moves up and down in conjunction with raising and lowering the cartridge holder
A disk drive device comprising:
Provide a cover to cover the holder and the upper part of the hold case.
The slide plate is provided with an eject button section.
Ride plate between the cartridge holder and the cover
Disposed on, said cartridge holder is provided with a rear end and a stopper portion abutting the eject button part, the Eji
When the slide button is pushed in, the slide
Ride and raise the cartridge holder
Then, the rear end of the eject button section contacts the stopper section.
This is attained by the first means for restricting the pushing of the eject button portion in contact therewith .

A second object of the present invention described above, the upper plate
The disc cartridge has a surface and a cartridge slot.
And Luca over cartridge holder be accommodated by inserting Tsu di, along said insertion and removal direction of the disc cartridge is slidably disposed a cam portion for lifting the cartridge holder
A slide plate having, provided in the cartridge holder
Is engaged with the cam portion and slides the slide plate.
A protrusion for interlocking said cartridge holder to move, before
The engagement with the arm on the upper surface of the cartridge holder
Up / down movement of the cartridge holder
And a hold case that moves up and down in conjunction with the cartridge insertion port.
And arranged on the side, on the upper surface of the cartridge holder, towards from the arm portion to collision force of the cartridge insertion opening side is achieved by second means provided with ribs.

[0011]

According to the first means, when the eject button is pushed in, the rear end of the eject button hits the stopper of the disk cartridge, and the eject button cannot be pushed further.

According to the second means, the strength of the upper surface plate of the cartridge holder is increased by the rib provided from the base of the arm to the engaging projection on the side of the disk cartridge insertion port, and the opening of the head is opened. Even when the generated downward force is applied to the arm portion of the cartridge holder, the amount of deflection of the upper surface plate of the cartridge holder can be significantly reduced.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 12 illustrate a disk drive according to an embodiment of the present invention. FIG. 1 is a plan view showing a disk drive according to an embodiment of the present invention.
FIG. 3 is a plan view showing the chassis of the disk drive device according to the embodiment of the present invention, and FIG. 3 is a side view of FIG.
5A and 5B are an enlarged plan view and a side view showing an eject button portion of the cartridge holder of the disk drive device according to the embodiment of the present invention, and FIGS. 5A and 5B are diagrams of the present invention. FIG. 14 is a plan view showing a cartridge holder of the disk drive device according to the embodiment and a sectional view taken along line AA of FIG. 5A. FIG. 14 is a conventional cartridge holder shown for comparison with the cartridge holder shown in FIG. Plan view of FIG. 6
(A), (b), and (c) are side, front, and plan views showing the disk cartridge insertion port side of the disk drive device according to the embodiment of the present invention, and FIG. 7 is a comparison of the embodiment of FIG. 8 (a), 8 (b) and 8 (c) are explanatory views showing the respective states of the insertion operation of the disk cartridge of the disk drive device according to the embodiment of the present invention, and FIG. 10 (a) and 10 (b) are explanatory views showing a slide plate of the disk drive device according to the embodiment of the present invention, and FIGS. a) and (b) are plan views of a conventional cartridge holder shown for comparison with the slide plate shown in FIG. 10, and FIG. 12 is an explanatory view showing a disk cartridge used in the disk drive device according to the embodiment of the present invention. It is.

In these figures, the disk drive 1
Is a flexible printed circuit board (FPC) connected to the lower cover 2, the lower insulating sheet, and the spindle motor 3.
And an upper insulating sheet provided on the FPC, a chassis 4 provided via the upper insulating sheet, and a carriage 7 provided on the chassis 4 and having a pair of magnetic heads 5 and 6 at the ends. A carriage transfer device 9 for transferring a carriage 7 in a radial direction of a magnetic disk 8 to be described later; a turntable protruding above the chassis 4 and rotationally driven by a spindle motor 3 mounted on the chassis 4; And a slide plate 14 for vertically moving the cartridge holder 11, and a slide plate 14 for moving the cartridge holder 11 up and down.
Is mainly constituted by an eject lever 12 for introducing the liquid crystal to the load position and pushing it from the load position to the discharge position, and an upper cover 13.

The chassis 4 is formed by pressing an aluminum alloy, and a carriage transfer device 9 is provided on the rear side of the disk drive device 1 which is the upper side in FIG.
A turntable is provided on the lower front side, and a cartridge holder 11 and a slide plate 14 are provided around the turntable.

As shown in FIG. 1, the carriage transfer device 9 is supported by a carriage 7 on which the lower magnetic head 5 is mounted, and is swingably supported at the end of the carriage 7 where the anti-magnetic head is mounted. A mounted hold case (head holder) 16, a guide shaft 17 supporting the carriage 7 on the left side of the carriage 7, and a spiral feed groove 18 disposed in parallel with the guide shaft 17 and formed on the outer periphery.
And the carriage 7 with the
, And mainly includes a follower pin 20 and a support member 22 that supports a follower spring 21. The carriage 7 is slidably supported by a guide shaft 17 via a bearing, and is movable along the radial direction of the magnetic disk 8 mounted on the turntable. The follower pin 20 is formed integrally with the support member 22, and the follower spring 21 is fixed to the lower surface of the support member 22 with a set screw 37. The screw shaft 19 is elastically held between the follower spring 21 and the follower pin 20 to prevent the follower pin 20 from coming off the feed groove 18. One end of the screw shaft 19 is connected to the stepping motor 15 as shown in FIGS.
The motor rotates in synchronization with the rotation of the stepping motor 15. When the screw shaft 19 rotates, the follower pin 20 converts the rotational motion into a linear motion, and the carriage 7 reciprocates along the guide shaft 17 according to the rotation amount of the screw shaft 19, and the commanded magnetic disk 8 To the truck position. A load arm 16a is provided on the hold case 16 and engages with an arm 60 of the upper surface 41 of the cartridge holder 11, which will be described later.

This cartridge holder 11 is shown in FIGS.
As shown in FIG.
0 and an upper surface portion 41 formed of a thin plate connecting the cartridge holding portion 40, the lower portion of the cartridge holding portion 40 supports the lower surface of the disk cartridge 10, and all other lower surface portions are open. The turntable and a hub 42 described later of the magnetic disk 8 can face each other, and a cartridge insertion port 43 is provided on the cartridge insertion side A. The cartridge holding portion 40 of the cartridge holder 11 is further formed with projections 46, 46 which engage with a guide groove 44 and a guide notch 45 of the chassis 4 described later. The cartridge holder 11 is constantly elastically urged toward the chassis 4 by a coil spring (not shown).

On the inner surfaces of the side plates 47 and 48 of the chassis 4,
As shown in FIGS. 1 to 3, a guide groove 44 and a guide notch 45 for guiding the protrusion 46 provided on the cartridge holding portion 40 of the cartridge holder 11 are formed, respectively. The magnetic disk 8 can be loaded and unloaded by moving substantially vertically to the chassis 4 along the guide of the guide notch 45. This movement is performed by a cam mechanism, which will be described later, which is disposed on the upper surface of the cartridge holder 11 and moves vertically according to the operation of the slide plate 14 which can move in parallel along the upper surface. Eject button 31 connected to slide plate 14 when in the state
When the cartridge holder 11 is pushed in the depth direction B of the chassis 4, the cartridge holder 11 is pushed upward, that is, in the unloading direction.

The slide plate 14 is provided on the upper surface of the cartridge holder 11, as shown in FIGS.
The slide plate 14 is slidably supported by a guide slit of the chassis 4, and the slide plate 14 is allowed to slide back and forth with respect to the cartridge holder 11. The slide plate 14 has an upper plate 49.
And side plates 50, 50 bent downward from both side edges of the upper surface plate 49. One of the side plates 50, 50 of the slide plate 14 is brought into contact with the protrusion 46 when the load is not loaded, and the parallel cam portions 51, 52 parallel to the upper surface of the chassis 4, and the cartridge holder 11 is lowered during the loading operation. In addition, inclined cam portions 53 and 54 formed with a downward slope on the rear (rear) side with respect to the chassis 4 for raising at the time of the eject operation are provided at the front and rear two places. The front and rear parallel cam portions 51 and 52 are set higher on the side closer to the cartridge insertion side A (parallel cam portion 51) than on the back side (parallel cam portion 52). The disc cartridge 10 is inserted obliquely, and thereafter, when the cartridge holder 11 is lowered to the loading position, the disk cartridge 10 is in a horizontal state. The slide plate 14 is constantly urged toward the cartridge insertion side A by a slide spring 55. The slide plate 14 is locked and held by the eject lever 12 at the loading position, that is, the pushing position. The parallel cam portions 51 and 52, the inclined cam portions 53 and 54, the guide groove portions 44,
A cam mechanism is configured by the guide notch 45, the projection 46, and the like. The slide plate 14 is integrally provided with an eject button mounting portion 56.

An eject lever 12 is provided on the upper right portion of the cartridge holder 11 in FIG.
7, is supported by the support shaft 58 so as to be swingable in a state of being elastically biased in the ejecting direction (counterclockwise) at all times. The swinging end of the eject lever 12 comes into contact with the side end of the shutter 59 and opens the shutter 59 of the disc cartridge 10 together with the rotation of the eject lever 12. When the disc cartridge 10 is inserted and the cartridge holder 11 is lowered, the eject lever 12 engages with the lock member 32 formed by bending the slide plate 14 downward, whereby the eject lever 12 has an arrow C. The rotation in the direction is prevented, and the eject lever 12 is locked in a state where it is pushed in.

On the cartridge insertion side A of the cartridge holder 11, as described above, an eject button attaching portion 56 for attaching the eject button 31 is provided, and the front edge portion of the cartridge holder 11 near both sides of the eject button attaching portion 56. Is provided with a stopper portion 24 that is bent upward and makes contact with the rear end portion 31a of the eject button 31. Therefore, when ejecting, the eject button 31 is pushed in to operate. When the eject button 31 is pushed in a predetermined amount, the rear end 31a of the eject button 31 comes into contact with the stopper portion 24 and cannot be pushed further. ing. In this way, the eject button 31 of the thin disk drive is prevented from being pressed too much.

The upper surface 4 of the cartridge holder 11
1, a rib 25 is provided from the base of the arm portion 60 to the engagement protrusion 46 on the cartridge insertion side A, as shown in FIGS. 1, 5A and 5B. Arm part 60
Is extended from the rear end of the cartridge holder 11 to reduce the thickness,
Even if the size is reduced, deformation of the cartridge holder 11 at the arm portion 60 can be suppressed. When the simulation is performed, for example, in the case of the conventional cartridge holder 11 without ribs shown in FIG. 14, when a downward force of 35 gf is applied to the tip 60a of the arm portion 60, the tip 60
a bends 0.31 mm and 0.28 mm downward. On the other hand, in the case of the cartridge holder 11 in this embodiment, 35 g
When a downward force of f is applied to the distal end 60a of the arm portion 60, the distal end 60a only needs to bend downward by 0.20 mm and 0.15 mm, and the rigidity is improved about twice. Therefore, when the upper magnetic head 6 is lifted sufficiently and the disk cartridge 10 is inserted and ejected, the upper magnetic head 6 does not collide with the disk cartridge 10 and the head 6 is not damaged. Since the ribs 25 are formed by a combination of simple straight lines as shown in FIG. 5B, pressing is easy. The ribs 25 are left and right ribs 25a, 25a.
Are connected by the central rib 25b, the bending of the arm portion 60 can be further suppressed. In addition, since a portion irrelevant to the strength of the upper surface plate 41 of the cartridge holder 11 can be hollowed out, the weight can be reduced.

When the thickness of the disk drive is reduced, the eject button cannot be formed below the disk insertion slot 43, and the eject button 70 is formed above the disk insertion slot 43 as shown in FIG. Will be. When the eject button 70 is in the upper position, the upper edge portion 7 of the front panel plate (bezel) 72 of the disk drive device
2a is thinned, and the eject button guide 71 is shown in FIG.
As shown in the figure, the upper side of the eject button 70 is open. Therefore, the eject button guide section 7
In 1, when an excessive force is applied to the eject button 70 in the upward direction, the eject button 70 bends upward,
There is a risk that the operation may be hindered or the parts may be damaged. Therefore, as shown in FIGS. 6A, 6B and 6C, the eject button 31 is formed in a trapezoidal cross section, and the eject button guide portion 32 of the front panel 30 is formed in accordance with this shape. I have. The upper and lower surfaces of the eject button guide portion 32 are open, and both side surfaces of the eject button guide portion 32 are formed as tapered surfaces 32a, 32a so that the upper open surface is narrower than the lower open surface. Therefore, the eject button 31 is guided by the two tapered surfaces 32a, 32a, and there is no possibility that the eject button 31 is deformed upward even if an upward force is applied to the eject button 31.

Incidentally, the dust-proof (countermeasure against noise) cover 13 in the disk drive device is made of a material having a relatively large plate pressure. As a result, a structure that is resistant to external pressure and hardly deformed (hard to bend as a single product) was obtained. However, in the case of a thin disk drive, the thickness of the cover 13 itself cannot be made sufficiently large, and when the cover 13 is mounted on the device, the middle of the cover 13 bends. Therefore, in order to prevent this, the cartridge holder can be configured as shown in FIG. 8 to prevent bending.

First, the configuration shown in FIG. 8 will be described.
When,Cartridge holder 11Has a head protection wall 26
Hold case 16Of the upper magnetic head 6
EstablishedCartridge holder 11Is in the upper position (unload
Position), the upper end 2 of the head protection wall 266a
Is set so that it can be pressed against the cover 13.And
A predetermined gap is provided between the hold case 16 and the upper cover 13.
The pace is maintained, and the upper magnetic head 6 is prevented from the cover 13.
Protecting. Also,Disk cartridge 10 is in the upper position
(Unload position), the cartridge holder 1
Bent portion 2 formed by bending the end A of the cartridge insertion side 1
8 is set to be pressed against the cover 13.
When the cover 13 is attached to the apparatus, the cover 13 is bent.
Is to be suppressed. This bent portion 28
It is bent and further bent forward, and the cart
Opening / closing door 2 provided at ridge insertion opening 43 so as to be freely opened / closed
Reference numeral 9 abuts to prevent excessive rotation. That is,
With one cartridge 10 already mounted,
So that the second disk cartridge 10 cannot be mounted
It has become.

Next, the disc cartridge mounting operation of this embodiment will be described with reference to FIGS.

FIG. 8A shows an unloaded state, in which the cartridge holder 11 is at the upper position,
9 is closed. When the disc cartridge 10 is inserted from the disc insertion slot 43 in this state, the door 2 is opened.
9 is pushed open and inserted as shown in FIG. When the disk cartridge 10 is completely inserted, the lock of the cartridge holder 11 is released as described above, and the cartridge holder 11 is lowered to the lower position.
The loading state shown in FIG. In this state, the door 2
The lower end of 9 is in an open state in contact with the upper surface of the disk cartridge 10. Then, with such a disk cartridge 10 already mounted on the first disk,
When the second disk cartridge 10 is inserted, the opening and closing door 29 is opened by the tip of the second disk cartridge 10.
The front end of the second disk cartridge 10 is slightly inserted by pushing it open. However, as shown in FIG. 9, the opened / closed door 29 comes into contact with the bent portion 28 to restrict the rotation. . Therefore, when the first disk cartridge 10 is already mounted, the opening / closing door 29 does not open, so that the second disk cartridge 10 cannot be inserted.

In this example, the upper end 27 of the head protection wall 26 of the cartridge holder 11 is set so as to be pressed against the cover 13, and the bent portion 28 formed by bending the end A of the cartridge holder 11 on the cartridge insertion side is covered. 13 so that the cover 13
When the device is mounted on the apparatus, the cover 13 can be prevented from bending, and the cover 13 can be made thinner and thinner. Further, as described above, the head protection wall 26 is
Also serves as a protector.

The bent portion 28 formed by bending the end A of the cartridge insertion side of the cartridge holder 11 also serves as a stopper for the door 29 of the cartridge insertion opening 43. Insertion of two cartridges 10 can be prevented.

Incidentally, the slide plate 14 is incorporated in the cartridge holder 11. FIG. 11 (a),
(B) shows the side plates of different conventional slide plates, and these side plates have the same shape on both the right and left plates. A conventional slide plate 73 shown in FIG.
In the side plate 74, all the guide grooves 75 are open,
At the time of assembling, the engaging projection 46 of the cartridge holder 11 is inserted from the opening 76. However,
In the conventional example shown in FIG. 11A, it is easy to disassemble due to a shock while being easy to assemble. Further, in the side plate 77 of the slide plate 73 of the conventional example shown in FIG.
All 8 were not opened and were difficult to incorporate. Therefore, the side plate of the slide plate is configured as shown in FIG.

FIG. 10 shows a modification of the slide plate.
0 (a) is an explanatory view of the right side plate of the slide plate, FIG. 10 (b)
FIG. 4 is an explanatory view of a left side plate of the slide plate.

In FIGS. 10A and 10B, reference numeral 34 denotes a right side plate of the slide plate, 35 denotes a left side plate of the slide plate,
The right side plate 34 and the left side plate 35 have guide grooves 36, which engage with the engagement protrusions 46 of the cartridge holder 11, respectively.
37, 38, and 39 are provided two by two.
Only one of the guide grooves 36 is cut out and opened, and the other guide grooves 37, 38 and 39 are not opened. With such a configuration, the guide groove 36 in which the distortion of the slide plate 14 during assembly is released
The slide plate 14 can be smoothly incorporated into the cartridge holder 11.

As shown in FIG. 12, the disk cartridge 10 contains a flexible magnetic disk 8 in a hard case 64 made of synthetic resin.
A metal shutter 59 is mounted on one end of the base 4 so as to be able to reciprocate in a state where it is always elastically urged in a closing direction (direction of arrow D) by a built-in spring (not shown). At a predetermined position of the shutter 59, an opening 66 having substantially the same shape as the head insertion hole 65 formed in the case 64 is provided. When the shutter 59 is opened, the head insertion hole 65 and the opening 66 coincide with each other. The magnetic heads 5 and 6 can slide on the magnetic disk 8 from outside the case 64. The bottom surface of the case 64 further includes a hub protrusion hole 6 for exposing the hub 42 of the magnetic disk 8 to the outside of the case.
7, a positioning hole 68 for positioning the disk cartridge 10, and an engaging groove 69 for loading which is also opened on the side surface.

When the disk cartridge 10 is inserted, as described above, the cartridge holder 11 is held at an angle of α = 0.5 ° with the back side being the lower position, so that the upper and lower magnetic heads 5 and 6 are held. Is located at the innermost circumference of the magnetic disk 8, the upper surface of the magnetic disk 8 does not abut against the upper magnetic head 6, and the upper and lower magnetic heads 5, 6
Is located at the outermost periphery of the magnetic disk 8, so that the lower surface of the disk cartridge 10 (magnetic disk 8) does not abut against the lower magnetic head 5.
0 (magnetic disk 8) is inserted obliquely. Thereby, compared to the parallel insertion of the conventional disk cartridge, in this embodiment, r1 × tanα (where r1: the distance from the axis of the turntable to the upper magnetic head 6 at the innermost position). Thus, the thickness of the entire disk drive device 1 can be reduced.

Next, the loading and unloading operations of the magnetic disk drive 1 having the above-described structure will be described.

First, in the unloaded state shown in FIG.
Indicates that the cartridge holder 11 is in the upper position,
Arm 16a is formed on the upper surface 41 of the cartridge holder 11.
The hold case 16 is lifted by engaging with the arm portion 60.
Is in a state of being When the disc cartridge 10 is inserted from the unloaded state, the disc cartridge 10 is first inserted obliquely at the unload position. Then, the rotating end of the eject lever 12 contacts the side surface of the shutter 59 at the tip of the disk cartridge 10, and when the disk cartridge 10 is further pushed in, the eject lever 12 rotates about its support shaft 58, and the eject lever 12 1
The shutter 59 moves to the back while being released by the second rotation end. Then, when the disk cartridge 10 is inserted to the innermost part of the cartridge holder 11, the slide plate 14 is unlocked (not shown), and the slide plate 14 is moved downward in FIG. (To the front of the driving device 1). When the slide plate 14 is released, the shutter 59 is fully opened. Further, the slide plate 14 is slid in the direction of arrow B, and when the hub 42 of the disk cartridge 10 is located directly above the turntable and is at a position where the disk cartridge 10 can no longer be introduced, the protrusion of the cartridge holder 11 is just reached. 46 is set so as to be located above inclined cam portions 53 and 54 formed on the side plate 47 of the slide plate 14. Thus, sliding slide plate 14 is brought may, an elastic force for urging the cartridge holder 11 in the base direction, the engagement action of the inclined cam portions 53 and 54 formed on the side surface of the slide plate 14 and the projections 46 The cartridge holder 11 further moves in the direction of arrow B, and the slide
In conjunction with the movement, as shown in FIG.
The magnetic disk 8 is loaded vertically on the turntable along with the cartridge 10 along the guide groove 44 and the guide notch 45 toward the chassis 4, and is loaded on the turntable.
6 enters the case 64 from the head insertion hole 65 and comes into contact with the magnetic disk 8, thereby enabling recording / reproduction. This
In the course of such an operation, the upper cover 13
To (c), the cartridge holder 11 and the
The slide plate 14 covers the upper part of the
Between the bar 13 and the cartridge holder 11, that is,
A switch necessary to protect the magnetic head 6 from the upper cover 13
It is located at the pace and makes effective use of this space
Therefore, the thickness of the device has been reduced.

In the unloaded state, the hold case 16
By being lifted, the upper magnetic head 6 and the
The disk cartridge 10 does not hit
However, in this way, the hold case 16
The upper magnetic head 6 on the side of the hold case 16 touches the magnetic disk 8, sandwiches the magnetic disk 8 with the lower magnetic head 5 on the carriage 7, and is loaded. The loading of the magnetic disk 8 is completed.

When the recording or reproduction is completed and the disk cartridge 10 is taken out, an eject operation is performed. At this time, the eject button 3
1 is pushed into the rear side of the chassis 4, the slide plate 14 also moves to the rear side accordingly, and pushes up the projection 46 of the cartridge holder 11 along the inclined cam portions 53 and 54, and pushes the projection 46 into the parallel cam portion. 51, 52,
Ri Do in the unloaded state the cartridge holder 11 is moved upward (direction away from the chassis 4), the cart
In conjunction with the movement of the ridge holder 11, the cartridge holder
The loader that engages with the arm portion 60 of the upper surface portion 41 of the solder 11
The hold case 16 is also lifted by the
And the upper magnetic head 6 strikes the disk cartridge 10.
Tsukara so as not to ing. When the slide plate 14 is further pushed in, the slide plate 14 is locked at the back position, and when the slide plate 14 is moved, the lock of the eject lever 12 is released, and the eject lever 12 is released from the eject spring 5.
The disk cartridge 10 is rotated counterclockwise in FIG. 1 around the support shaft 58 by the elastic force of 7, and ejects the disk cartridge 10 in the direction of arrow B. During the ejecting process, the disc cartridge 10 engaged with the eject lever 12 is ejected.
The shutter 59 also moves in the closing direction, and is naturally closed when ejected. Therefore, the eject lever 12 also functions as a shutter opening / closing lever. In this manner, the disk cartridge 10 can be manually removed only after the ejection.

According to the above-described embodiment, the cartridge holder 11 capable of inserting and storing the disk cartridge 10 and moving between the load position and the unload position, and the insertion / removal direction of the disk cartridge 10 The slide plate 14 is slidably disposed along the slide plate 14 and moves the cartridge holder 11 at the load position to the unload position, and the eject button 31 provided on the slide plate 14, and the eject button 31 is depressed. As a result, in the disk drive device in which the slide plate 14 is pushed in to move the cartridge holder 11 to the unload position, the cartridge holder 11 is provided with the stopper portion 24 for abutting the rear end 31a of the eject button 31. Because it was provided, while reducing the thickness, Press too much eject button 31 can be prevented.

According to the above embodiment, the magnetic head 6
And a holder case 16 rotatably supported, a cartridge holder 11 capable of inserting and storing the disk cartridge 10 and moving up and down between the load position and the unload position, and a direction in which the disk cartridge 10 is inserted and removed. And a lifting member for slidably moving the cartridge holder 11 at the loading position to the unloading position via a cam mechanism. A projection 46 is formed, and the cartridge holder 1 is formed.
In the disk drive device provided with an arm portion 60 which engages with the hold case 16 at the back end of the disk drive 1, the upper surface portion 41 of the cartridge holder 11 is connected to the disk cartridge insertion side A from the base of the arm portion 60. Since the rib 25 is provided toward the mating projection 46, even if the arm portion 60 is extended from the rear end of the cartridge holder 11 to reduce the thickness and the size, the deformation of the arm portion 60 of the cartridge holder 11 is suppressed and When the magnetic head 6 is lifted sufficiently, the magnetic head 6 does not collide with the disk cartridge 10 when the disk cartridge 10 is inserted or ejected, so that the magnetic head 6 is not damaged.

[0042]

According to the invention of claim 1, the car is provided.
The cartridge holder is in contact with the rear end of the eject button.
The ejector button is pushed because of the stopper
Can be prevented. Still further, the slide plate is
Since it was provided between the bar and the cartridge holder,
Slide into the space required to protect the pad from the cover.
A thin plate is installed by arranging a plate to make effective use of space.
While at the same time preventing dust and noise.
Measures can be taken.

According to the invention of claim 2, the protrusion is formed
The cartridge is disposed on the cartridge insertion port side and the cartridge
On the upper surface of the holder, insert the cartridge from the arm.
Since the rib is provided toward the projection on the side of the
Is not intended to reinforce the cartridge holder,
Arm that (the load arm part of) the hold case engages
Ribs to reinforce the cartridge holder.
Even if the thickness of the plate-shaped upper part is reduced, the cartridge
Hold down the deformation of the arm of the holder and unlock the head.
The head height can be kept constant and the upper head
When the disk cartridge is inserted and ejected with a sufficient lifting amount
The head and the disk cartridge collide and the head is damaged
Never do.

[Brief description of the drawings]

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

FIG. 2 is a plan view showing the chassis of the disk drive device according to the embodiment of the present invention.

FIG. 3 is a side view of FIG. 2;

FIG. 4 is an explanatory diagram showing an enlarged view of an eject button portion of the cartridge holder of the disk drive device according to the embodiment of the present invention;

FIG. 5 is an explanatory view showing a cartridge holder of the disk drive device according to the embodiment of the present invention.

FIG. 6 is an explanatory view showing a disk cartridge insertion opening side of the disk drive device according to the embodiment of the present invention;

FIG. 7 is an explanatory diagram shown for comparison with the embodiment shown in FIG. 6;

FIG. 8 is an explanatory diagram illustrating an operation of inserting a disk cartridge of the disk drive device according to the embodiment of the present invention;

FIG. 9 is an explanatory diagram showing an erroneous insertion state of a disk cartridge of the disk drive device according to the embodiment of the present invention.

FIG. 10 is an explanatory view of a cartridge holder of the disk drive device according to the embodiment of the present invention.

FIG. 11 is a plan view of a conventional cartridge holder shown for comparison with the cartridge holder shown in FIG.

FIG. 12 is an explanatory view showing a disk cartridge used in the disk drive device according to the embodiment of the present invention.

FIG. 13 is an explanatory diagram of a main part of a conventional disk drive device.

FIG. 14 is a plan view of a conventional cartridge holder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disk drive 4 Chassis 6 Upper magnetic head 8 Magnetic disk 10 Disk cartridge 11 Cartridge holder 14 Slide plate 24 Stopper part 25, 25a, 25b Rib 31 Eject button

Claims (2)

(57) [Scope of request for utility model registration] 1. A plate-like upper part and a cartridge insertion opening are provided.
A, and Luca over preparative <br/> Rijjihoruda be accommodated by inserting the disk cartridge, slidably disposed along the insertion and removal direction of the disk cartridge, lifting the cartridge holder
A slide plate having a cam portion , provided on the cartridge holder, and engaged with the cam portion.
And the cartridge is moved to slide the slide plate.
Engage with the protrusion for interlocking the holder and the arm on the upper surface of the cartridge holder
The cartridge holder has an engaging portion and a head.
In a disk drive device having a hold case that moves up and down in conjunction with lowering , the upper part of the cartridge holder and the hold case is
A cover is provided, and the slide plate is provided with an eject button section.
Plate between the cartridge holder and the cover.
And setting, in the cartridge holder, the rear end portion and a stopper portion abutting the eject button part is provided, by pushing the eject button part, the slide
Plate slides and the cartridge holder rises
At the same time, the rear end of the eject button
To control the pushing of the eject button by touching the
Disk drive being characterized in that the. 2. A plate-like upper surface portion and a cartridge insertion slot.
A, and Luca over preparative <br/> Rijjihoruda be accommodated by inserting the disk cartridge, slidably disposed along the insertion and removal direction of the disk cartridge, lifting the cartridge holder
A slide plate having a cam portion , provided on the cartridge holder, and engaged with the cam portion.
And the cartridge is moved to slide the slide plate.
Engage with the protrusion for interlocking the holder and the arm on the upper surface of the cartridge holder
The cartridge holder has an engaging portion and a head.
In a disk drive device comprising a hold case that moves up and down in conjunction with lowering , the protrusion is disposed on the cartridge insertion port side, and the upper surface of the cartridge holder is provided with the arm portion .
Disk drive being characterized in that a rib towards the impact force of al the cartridge insertion opening side.