JPH08124267A - Magnetic disk equipment - Google Patents

Abstract

PURPOSE: To obtain magnetic disk equipment being excellent in operability and inexpensive and scarcely having troubles by a simple construction. CONSTITUTION: When a disk cartridge 72 is inserted, a hook pin 79 proceeds into a fixing groove 75, a link 80 rotates counter-clockwise and a pin 82 pushes a lever 83 in the direction of ejection. Being further pressed in, the disk cartridge 72 comes into contact with positioning stoppers 88a and 88b and, at this position, it is held reliably at a prescribed operating position by a spring force of a spring 87. At the time of ejection, the lever 83 is pushed in the direction of insertion of the disk cartridge 72, the link 80 is rotated clockwise through the intermediary of a pin 82 and the hook pin 79 of the link 80 pushes the disk cartridge 72 in the direction of ejection. Then, a roller 84 comes into contact with a slant on the right side of a cam part of the lever 83, the lever 83 is actuated by the spring 87 and made to move in the direction of insertion, the link 80 rotates further clockwise and thereby the disk cartridge 72 is moved in the direction of ejection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic disk device, and more particularly to a rotating disk type magnetic disk device such as a magnetic disk or an optical disk used as a mass storage device of an information processing device.

[0002]

2. Description of the Related Art As a conventional magnetic disk device, for example, there is one shown in FIG. In FIG. 7, in the magnetic disk device 1, a spindle motor 3 is arranged in a case 2, and a disk 4 is attached to the spindle motor 3. The disk 4 is rotationally driven by the spindle motor 3 in the direction of arrow R1 in FIG.

A rotary actuator 5 is provided in the magnetic disk device 1, and the rotary actuator 5 is provided.
Is a floating head slider (hereinafter referred to as slider).
6, a head 7 mounted on the slider 6, a suspension 8 for pressing the slider 6 against the disk 4 with a predetermined load, an arm 9 for setting the actuator length to a specified length, a coil 10, and a magnet 11.

The rotary actuator 5 is rotationally driven by an electromagnetic force generated between the coil 10 and the magnet 11. That is, when the coil 10 rotates in the direction indicated by R2 in FIG. 7, the slider 6 of the rotary actuator 5 moves (seeks) in the R3 direction in FIG. 7, and the head mounted on the slider 6 is moved. Are read and written to and positioned on arbitrary tracks on the disk 4.

In this magnetic disk device 1, the spindle motor 3 starts rotating with the slider 6 in contact with the disk 4 at the innermost circumference of the disk 4, and the slider 6 moves at the innermost circumference of the disk 4. The spindle motor stops rotating while being in contact with the surface of the disk 4.

Therefore, in the magnetic disk device 1, the slider 6 flies while rubbing the surface of the disk 4 at the time of starting, and the slider 6 comes into contact with the surface of the disk 4 at the time of stopping to stop. This method is CC
It is called S (Contact Start Stop).

However, recently, the slider 6 is moved to the disk 4
A magnetic disk device that starts and stops in a state of being levitated from the surface of the disk has appeared. In such a levitated state, even if the disk 4 is removed, the disk 4 and the head are scratched. Since it is not attached, a so-called cartridge type magnetic disk device in which the disk portion is made into a cartridge so as to be attachable to and detachable from the magnetic disk device has appeared.

As such a conventional cartridge type magnetic disk device, for example, there is one as shown in FIGS. 8 and 9.

This cartridge type magnetic disk device 20
Has a spindle motor 22 and a rotary actuator 23 mounted in a case 21, and a disk cartridge 24 can be inserted / ejected in the case 21 in a direction indicated by an arrow A in FIG. . A disk 25 is rotatably housed in the disk cartridge 24.

The cartridge type magnetic disk device 20 is
A slide-shaped ramp 27 is provided near the stop position of the slider 26 of the rotary actuator 23. When the rotary actuator 23 rotates to the stop position, the dimple 28 of the rotary actuator 23 is moved by the ramp 27.
Comes up. Therefore, the rotary actuator 23
Head 29 retracts into the air and does not come into contact with the disk 25.

This cartridge type magnetic disk device 20
In the state where the spindle 22 is stopped, the disk cartridge 24 is inserted in the direction shown by the arrow A in FIG. 8, and the spindle 22 and the disk 25 are chucked as shown in FIG. After that, the cartridge type magnetic disk device 20
At the time of startup, first, the spindle motor 22 is started, the disk 25 reaches a predetermined angular velocity, and then the rotary actuator 23 moves in the direction indicated by arrow R4 in FIG.

When the rotary actuator 23 moves in the direction of arrow R4, the restraining force of the dimple 28 by the ramp 27 disappears, and the head 29 is pressed against the disk 25 by the spring force of the suspension 30. The head 29 does not come into contact with the disk 25 due to the lift force exerted between the head 29 and the disk 26. This slider 2
The landing of 6 standing on the disk 25 is called landing.

Next, the cartridge type magnetic disk device 2
When 0 is stopped, the rotary actuator 23 first retracts to the stop position shown in FIGS. 8 and 9 (the above operation is called unloading), and then the spindle motor 22 stops. At this time, as described above, the head 29 of the rotary actuator 23 retracts into the air and does not contact the disk 25.

As described above, according to this method, the head 29 does not come into contact with the disk 25 at the time of starting and stopping, and the NCSS
It is called (Non Contact Start Stop).

Further, as described above, a system in which the magnetic disk device is fixed in the slot of the device is called a fixed type magnetic disk device, whereas the magnetic disk device itself is set in the slot of the device. Some of them have become detachable, and this type is called a detachable magnetic disk device.

An example of this conventional removable magnetic disk device is shown in FIG.
In the removable magnetic disk device 40, a connector 42 for connecting a signal line, a power source, etc. is attached to the rear end of the case 41.

Inside the removable magnetic disk device 40, a spindle motor 43, a disk 44 attached to the spindle motor 43, and a rotary actuator 45.
A lamp 46 and the like are provided, and the removable magnetic disk device 40 is removably inserted in the slot 47 of the device in the direction of arrow B.

An eject lever 48 for ejecting the removable magnetic disk device 40 inserted is rotatably attached to the slot 47, and is pushed in the direction of arrow C in FIG. 48
The other end pushes the rear end of the removable magnetic disk device 40 to eject the removable magnetic disk device 40 out of the slot 47.

A connector 49 is mounted in the slot 47. The connector 49 is a connector 42 of the removable magnetic disk device 40 inserted in the slot 47.
Connected to

Further, as a conventional removable magnetic disk device, as shown in FIG. 11, a so-called cartridge type removable magnetic disk device 50, in which the disk portion is made into a cartridge so as to be removable from the removable magnetic disk device, appears. are doing.

This cartridge type removable magnetic disk device 50 is removably inserted in the slot 51 of the device in the direction of arrow B in FIG. 11, and the slot 51 is provided with an eject lever 52 and a connector 53.

Further, the cartridge type removable magnetic disk device 50 includes a spindle motor 5 in a case 54.
5, a rotary actuator 56, a lamp 57, etc., and a connector 58 is attached to the rear end of the case 54.

In the cartridge type removable magnetic disk device 50 inserted in the slot 51, the connector 58 at the rear end of the case 54 and the connector 53 in the slot 51 are connected and ejected by the eject lever 52.

A disk cartridge 59 is inserted in the cartridge type removable magnetic disk device 50 in the direction of arrow A in FIG. 11 so that the disk cartridge 59 can be inserted and ejected. When the disk cartridge 59 is inserted, the disk cartridge 59 is inserted.
The disk 60 rotatably housed inside and the spindle motor 55 are chucked,
The disk 60 is rotationally driven by 5.

[0025]

However, in such a conventional magnetic disk device, in particular, in the cartridge type magnetic disk device, how inexpensive the magnetic disk device can be made in view of the demand for miniaturization and thinning. However, it is an important issue to make it difficult to cause a failure and to have good operability.

That is, in the cartridge type magnetic disk drive today, the size of the disk cartridge is reduced,
Thinning is required. However, such miniaturization,
From the slimming down, due to the size restriction, the gap between the disk and the disk cartridge becomes narrow, and if the positioning accuracy of the disk cartridge is poor, the disk and the disk cartridge come into contact with each other during the use of the cartridge type magnetic disk device, It may cause a failure.

In particular, when a cartridge type magnetic disk device is used in a portable information device, it is easily affected by a disturbance such as shock or vibration, and the disk and the disk cartridge are likely to come into contact with each other.

Further, in the cartridge type magnetic disk device, a mechanism for ejecting the inserted disk cartridge is additionally required, the number of parts is increased, the structure is complicated, and the cartridge type magnetic disk device is enlarged. Moreover, there is a problem that the cost increases and the defect occurrence rate and the failure occurrence rate increase.

The present invention has been made in view of the above problems, and can easily and easily insert and eject a disc cartridge with a small number of parts, and can reliably hold the disc cartridge at a prescribed operating position. Therefore, it is an object of the present invention to provide a magnetic disk device that can reduce the occurrence of failures.

[0030]

According to the present invention, the above object is to chuck a disk of a disk cartridge that can be inserted / ejected into a spindle motor, and rotate the disk by the spindle motor. ,
In a magnetic disk device for writing a signal to the disk and reading a signal from the disk by a head attached to an actuator, a cartridge holding means for holding the inserted disk cartridge at a prescribed operation position, and the cartridge. At the time of discharging, the holding by the cartridge holding means is released,
And a discharging unit that discharges the cartridge in the discharging direction.

Further, the magnetic disk device of the present invention is provided with a link means which is engaged with the disk cartridge to be inserted and is rotatably provided, and is movable in the insertion / ejection direction of the disk cartridge. , Lever means that engages with the link means and moves in the ejecting / inserting direction of the disc cartridge with the rotation of the link means, and the lever means in the inserting direction depending on the insertion position of the disc cartridge. Urging means for urging by switching to the ejecting direction and regulating means for regulating the position of the disc cartridge in the inserting direction at a prescribed operating position, and the urging means via the link means and the lever means. By pressing the disk cartridge against the regulating means by the urging means, When the lever means is held in a constant operating position and is pushed in the inserting direction, the urging direction of the urging means is switched to the inserting direction, and the urging means of the urging means is moved through the lever means and the link means. The disc cartridge may be ejected by an urging force.

The link means has a groove of a predetermined shape formed at the end of the disc cartridge in the insertion direction,
A rotatably provided link member, a hook pin attached to the link member and entering the groove of the disc cartridge, and attached to the link member,
A pin that engages the lever means.

Further, one end of the lever means projects toward the insertion port of the disk cartridge of the magnetic disk device, the other end is formed in an L shape, and the other end has different inclination directions. A lever member having two inclined surfaces, wherein the biasing means switches the inclined surface of the other end of the lever member to bias the disk cartridge according to the insertion position of the disk cartridge, thereby biasing the disk cartridge. It may be one that switches the ejection / insertion direction and urges.

Further, the biasing means may include a roller member that abuts the inclined surface of the lever member, and an elastic member that biases the roller member toward the other end of the lever member. Good.

[0035]

According to the above construction, the cartridge holding means holds the inserted disk cartridge at the prescribed operating position, and when the cartridge is ejected, the ejecting means releases the holding by the cartridge holding means to eject the cartridge. Discharge in the discharge direction.

Therefore, the magnetic disk device can be made to have a simple structure, the disk cartridge can be securely fixed and held during operation, and the magnetic disk device can be miniaturized and thinned.

For example, a link means rotatably provided is engaged with the disk cartridge to be inserted, and a lever means movably provided in the insertion / ejection direction of the disk cartridge is engaged with the link means. To do. The lever means moves in the ejecting / inserting direction of the disc cartridge with the rotation of the link means, and the biasing means switches the lever means between the inserting direction and the ejecting direction according to the inserting position of the disc cartridge. Energize. Then, the regulating means regulates the position of the disc cartridge in the inserting direction at the prescribed operation position.

Therefore, by pressing the disk cartridge against the restricting means by the urging means via the link means and the lever means, the disk cartridge is held in the prescribed operating position, and when the lever means is pushed in the inserting direction, The urging direction of the urging means is switched to the inserting direction, and the disc cartridge is ejected by the urging force of the urging means via the lever means and the link means.

As a result, the magnetic disk device can have a simple structure, and the disk cartridge can be securely fixed and held by the biasing means and the restricting means during operation, and the magnetic disk device can be miniaturized. Further, it is possible to make the device thinner, and it is possible to prevent the occurrence of a failure due to the contact between the disc cartridge and the disc. Furthermore, operability can be improved.

The link means is, for example, a groove of a predetermined shape formed at the end of the disk cartridge in the insertion direction, a rotatably provided link member, and a hook pin attached to the link member and entering the groove of the disk cartridge. And a pin that is attached to the link member and engages with the lever means, the link means can have a simple structure, and the magnetic disk device can be made smaller and thinner. be able to.

Also, for example, the lever means has one end protruding toward the insertion opening of the disk cartridge of the magnetic disk device, the other end formed in an L shape, and the other end having two different inclination directions. A lever member having an inclined surface, and the urging means switches the inclined surface at the other end of the lever member for urging according to the insertion position of the disk cartridge, thereby ejecting the disk cartridge.
The magnetic disk device can be made even smaller and thinner by switching the insertion direction and urging the magnetic disk device.

Further, when the urging means comprises a roller member that abuts the inclined surface of the lever member and an elastic member that urges the roller member toward the other end of the lever member, the urging means. Can have a simple structure, and the magnetic disk device can be made even smaller and thinner.

[0043]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. The examples described below are
Since it is a preferred specific example of the present invention, various technically preferable limitations are attached thereto, but the scope of the present invention is, in the following description, unless otherwise stated to limit the present invention. However, the present invention is not limited to this mode.

The present embodiment is an application of the magnetic disk device of the present invention to a cartridge type magnetic disk device in which the main body of the apparatus is also attachable to and detachable from a slot of the device. FIG. 2 is a horizontal sectional view of a disk cartridge inserted in the cartridge type magnetic disk apparatus, FIG. 2 is a lateral side sectional view of the cartridge type magnetic disk apparatus of FIG. 1, and a lateral side view of the disk cartridge; 4 is a vertical side view of the cartridge type magnetic disk device, FIG. 4 is a horizontal sectional view of the cartridge type magnetic disk device when the disc cartridge is being inserted, and FIG. 5 is a horizontal sectional view of the cartridge type magnetic disk device during the insertion of the disc cartridge. , Fig. 6
FIG. 3 is a horizontal sectional view of the cartridge type magnetic disk device with the disk cartridge completely inserted.

In FIGS. 1 and 2, the cartridge type magnetic disk device 70 includes a partition member 71 inside the case 71.
a (see FIG. 2) is divided into two layers, and FIG.
The upper layer cartridge insertion layer 71b into which the disc cartridge 72 is inserted is shown.

As shown in FIG. 1, the disc cartridge 72 accommodates a disc 73 in which information is written in a predetermined signal form, and a center core 74 is attached to the center of rotation of the disc 73. ing.

On the back surface of the disc cartridge 72, as shown by the broken line in FIG.
A fixing groove 75 for fixing the No. 2 in the cartridge type magnetic disk device 70 is formed, and the fixing groove 75 is formed in a substantially L-shape at the end portion in the insertion direction of the disk cartridge 72.

A spindle motor 76 is housed in a case 71 of the cartridge type magnetic disk device 70, and the case 71 has its front side (right side in FIGS. 1 and 2).
Only the side end portion of is opened as the insertion port 71c. In the case 71 of the cartridge type magnetic disk device 70,
The disc cartridge 72 is inserted from the insertion port 71c in the direction shown in FIGS.

Referring again to FIG. 1, the partition member 71a has two guide pins 77a and 77b formed on the upper side in FIG. 1 side by side in the insertion direction of the disk cartridge 72 toward the layer below the cartridge insertion layer 71b. Further, an arc-shaped guide groove 78 is formed on the deeper side of the cartridge 71b than the guide pins 77a and 77b.

A hook pin 79 is inserted into the arc-shaped guide groove 78 in a state of protruding from the cartridge 71b, and the hook pin 79 can move only in the guide groove 78.

The hook pin 79 is attached to the link 80 as shown in FIGS.
Is formed in a hook shape. The link 80 is rotatably supported by a shaft 81 attached to the center of the link 80, and a pin 82 is attached to the end of the link 80 opposite to the hook pin 79.

The pin 82 is inserted into a guide groove 83a formed at the tip of a lever (lever means) 83, the lever 83 is formed in a substantially L shape, and the other end is a cartridge type magnetic disk. It projects outside the device 70. The lever 83 has a guide pin 77a, 77b at the middle portion of the portion extending in the insertion direction of the disc cartridge 72.
Two guide grooves 83b and 83c into which the disk cartridge 72 enters are formed so as to extend in the insertion direction of the disk cartridge 72.
Therefore, the lever 83 is guided by the guide pins 77a and 77b which enter the guide grooves 83b and 83c,
The disk cartridge 72 is attached so as to be movable in the insertion direction and the ejection direction.

A triangular cam portion is formed at the tip of the lever 83 on the guide groove 83a side, and a roller 84 is in contact with the cam portion of the lever 83.

The roller 84 is rotatably attached to an arm 86 rotatably supported by a shaft 85, and the arm 86 is pressed against a cam portion of the lever 83 by a spring 87.

Therefore, the roller 84, the shaft 85,
The arm 86 and the spring 87 as a whole function as an urging unit that urges the lever 83, which is a lever unit, by switching between the insertion direction and the ejection direction according to the insertion position of the disc cartridge 72.

A pair of positioning stoppers 88a and 88b are formed at both ends in the width direction of the cartridge insertion layer 71b of the cartridge type magnetic disk device 70. The positioning stoppers 88a and 88b are located inside the cartridge insertion layer 71b. The stopper 88a for positioning the movement of the disc cartridge 72 to be inserted in the insertion direction,
It is regulated at the position of 88b.

Further, the cartridge type magnetic disk device 7
A connector 89 is attached to the left end portion of 0.

The cartridge type magnetic disk device 70 is
When the cartridge type magnetic disk device 70 is inserted into the slot of a device (not shown) in a removable manner and the cartridge type magnetic disk device 70 is inserted into the slot, the connector 89 is connected to the connector formed in the slot.

Next, the operation of this embodiment will be described. In the cartridge type magnetic disk device 70, first, the cartridge type magnetic disk device 70 itself is removably inserted into the slot of the device, and the disk cartridge 72 is inserted into this cartridge type magnetic disk device 70 so that it can be inserted / ejected.

The cartridge type magnetic disk device 70 is
When the disc cartridge 72 is not mounted, as shown in FIG. 4, the lever 83 has its guide grooves 83b, 83c.
The guide pins 77a and 77b are in contact with the right edge of the guide groove 77, and the link 80 has the pin 82 closest to the upper edge of the guide groove 83a and the hook pin 79 closest to the right edge of the guide groove 78. Located in.

That is, in this state, the lever 8
As shown in FIG. 4, the roller 84 is in contact with the right inclined surface of the cam portion 3 and is biased to the left in FIG. 4 by the spring force of the spring 87.

Therefore, the lever 83 has the guide pin 77 on the right edge of the guide grooves 83b and 83c of the lever 83.
It is held at the position where a and 77b contact, that is, the leftmost position.

Since the lever 83 is located on the leftmost side, the link 80 is rotated counterclockwise through the pin 82 which is inserted into the guide groove 83a of the lever 83,
The position where the pin 82 is closest to the upper end of the guide groove 83a,
The hook pin 79 attached to the link 80 is held at a position closest to the right edge of the guide groove 78 formed in the partition member 71a.

In this state, the disc cartridge 72
1 is inserted into the cartridge insertion layer 71b of the cartridge type magnetic disk device 70 in the direction indicated by the arrow A in FIGS. 1 and 2, the hook pin 79 opens the opening 75a of the fixing groove 75 of the disk cartridge 72. When the hook pin 79 further enters the fixing groove 75 as shown in FIG. 4, the hook pin 79 abuts the right edge 75b of the fixing groove 75, and the disk cartridge 72 is inserted into the hook pin 79. Push in the insertion direction.

When the hook pin 79 is pushed in the inserting direction by the disc cartridge 72, the link 80 to which the hook pin 79 is attached rotates counterclockwise, and the pin 82 attached to the link 80 moves the lever 83 in the ejecting direction ( Start pushing to the right).

At this time, the lever 83 is, as described above,
It is biased in the insertion direction by the spring force (biasing force) of the spring 87 via the roller 84, but against this biasing force,
When the disk cartridge 72 is pushed in, the link 8
0 further moves in the counterclockwise direction, and along with this, the lever 83 further moves in the discharging direction, and as shown in FIG.
The roller 84 contacts the left inclined surface on the opposite side of the cam portion beyond the tip of the cam portion of the lever 83.

When the roller 84 comes into contact with the left inclined surface of the cam portion, as shown in FIG. 6, the spring force of the spring 87 acts so as to eject the lever 83, and further rotates the link 80 counterclockwise. It acts in the direction of movement.

Therefore, the hook pin 79 is fixed in the fixing groove 7.
5, the left side edge 75c is pushed away from the right side edge 75b, and the disk cartridge 72 is pushed in the inserting direction.

As a result, even if the user of the cartridge type magnetic disk device 70 does not press the disk cartridge 72, the disk cartridge 72 is pulled in the insertion direction by the spring force of the spring 87.

After that, when the disc cartridge 72 comes into contact with the positioning stoppers 88a and 88b as shown in FIG. 6, the disc cartridge 72 is pressed against the positioning stoppers 88a and 88b by the spring force of the spring 87, without rattling. , Is securely held in the specified operating position.

At this position, the disk 73 in the disk cartridge 72 is chucked by the spindle motor 74 and is rotationally driven by the spindle motor 74.

Therefore, the cartridge-type magnetic disk device 70 can prevent the disk cartridge 72 from moving and coming into contact with the disk 73 during operation, thereby preventing the disk 73 from being broken or broken. .

Next, the ejection of the disc cartridge 72 is performed by the user of the cartridge type magnetic disc device 70 pushing the lever 83 in the inserting direction of the disc cartridge 72.

That is, as shown in FIG. 6, in the disc cartridge 72, the arm 86, the roller 85, the lever 83, the pin 82, and the link 8 are in the prescribed operating position.
0, the hook pin 79 and the fixing groove 75, the spring 87
It is pressed against the positioning stoppers 88a and 88b by the spring force. The lever 83 is urged in the discharging direction by the spring force of the spring 87 via the arm 86 and the roller 85, but when the lever 83 is pushed in the inserting direction against the spring force of the spring 87. The link 80 is rotated clockwise by the lever 83 via the pin 82.

When the link 80 rotates clockwise, the hook pin 79 attached to the link 80 separates from the left edge 75c of the fixing groove 75 of the disc cartridge 72 and pushes the right edge 75b, and the disc cartridge 72 is ejected. Pushed in the direction.

When the lever 83 is pushed further in, FIG.
As shown in FIG.
The surface of the cam portion is switched from the left surface to the right surface, and as shown in FIG. 4, the spring force of the spring 87 is switched to push the lever 83 in the insertion direction.

Therefore, even if the user of the cartridge type magnetic disk device 70 does not push the lever 83, the lever 83 moves in the inserting direction by the spring force of the spring 87, and the lever 83 moves in the inserting direction. The link 80 further rotates clockwise, and the hook pin 79 moves the disc cartridge 72 in the ejecting direction.

After that, the hook pin 79 comes out of the opening 75a of the fixing groove 75, and the disc cartridge 72 can be reliably ejected.

As described above, the disc cartridge 72 can be reliably ejected without providing a special mechanism as an ejection mechanism, and the lever 83 is pushed to facilitate the disc cartridge 72 by the spring force of the spring 87. Moreover, the disc cartridge 72 can be reliably ejected.

In the above embodiment, the case where the main body of the apparatus is also applied to the cartridge type magnetic disk apparatus 70 which can be attached to and detached from the slot of the equipment has been described, but the present invention is not limited to this, and the main body of the cartridge type magnetic disk apparatus is It may be fixed to the slot of the device.

[0081]

As described above, according to the present invention, it is possible to easily and easily insert / eject a disk cartridge with a small number of parts, and to securely hold the disk cartridge at a prescribed operating position to prevent a failure. It is possible to provide a magnetic disk device capable of reducing the occurrence of

[Brief description of drawings]

FIG. 1 is a horizontal cross-sectional view of a cartridge-type magnetic disk device to which an embodiment of a magnetic disk device of the present invention is applied and a horizontal cross-sectional view of a disk cartridge to be inserted into the cartridge-type magnetic disk device.

2 is a lateral side sectional view of the cartridge type magnetic disk device of FIG. 1 and a lateral side view of a disk cartridge. FIG.

3 is a vertical side view of the cartridge type magnetic disk device of FIG.

FIG. 4 is a horizontal cross-sectional view of the cartridge type magnetic disk device when the disk cartridge of FIG. 1 is started to be inserted.

5 is a horizontal cross-sectional view of the cartridge type magnetic disk device in which the disk cartridge of FIG. 1 is being inserted.

6 is a horizontal cross-sectional view of the cartridge type magnetic disk device in which the disk cartridge of FIG. 1 is completely inserted.

FIG. 7 is a horizontal sectional view of a conventional magnetic disk device.

FIG. 8 is a horizontal sectional view of a conventional cartridge type magnetic disk device and a disk cartridge.

9 is an enlarged horizontal sectional view of the cartridge type magnetic disk device of FIG.

FIG. 10 is a horizontal sectional view of a conventional removable magnetic disk device and a slot.

FIG. 11 is a horizontal sectional view of a conventional cartridge-type removable magnetic disk device, a disk cartridge and a slot.

[Explanation of symbols]

70 cartridge type magnetic disk device 71 case 71a partition member 71b cartridge insertion layer 71c insertion opening 72 disk cartridge 73 disk 74 center core 75 fixing groove 76 spindle motor 77a, 77b guide pin 78 guide groove 79 hook pin 80 link (link means) 81 shaft 82 pin 83 lever (discharging means, lever means) 83a guide groove 83b, 83c guide groove 84 roller (biasing means) 85 shaft 86 arm (biasing means) 87 spring (discharging means, biasing means) 88a, 88b for positioning Stopper (cartridge holding means)

Claims (5)

[Claims] 1. A disk of a disk cartridge that can be inserted and ejected is chucked by a spindle motor, the disk is rotationally driven by the spindle motor, and a signal is written to the disk by a head attached to an actuator. And a magnetic disk device for reading a signal from the disk, a cartridge holding means for holding the inserted disk cartridge at a prescribed operation position, and a holding means for releasing the holding by the cartridge holding means when the cartridge is ejected. A magnetic disk device comprising: a discharging unit configured to discharge the cartridge in a discharging direction. 2. A disk of a disk cartridge that can be inserted / ejected is chucked by a spindle motor, the spindle motor drives the disk to rotate, and a head attached to an actuator writes a signal to the disk. And a magnetic disk device for reading a signal from the disk, wherein the link means is engaged with the disk cartridge to be inserted and is rotatably provided, and is provided so as to be movable in an insertion / ejection direction of the disk cartridge. And lever means that engages with the link means and moves in the ejecting / inserting direction of the disc cartridge with the rotation of the link means; and the lever means according to the insertion position of the disc cartridge. Energize by switching between the insertion direction and the ejection direction. Urging means, and regulating means for regulating the position in the insertion direction of the disc cartridge at a prescribed operating position, and via the link means and the lever means,
By pressing the disk cartridge against the regulating means by the biasing means, the disk cartridge is held in a prescribed operating position, and when the lever means is pushed in the inserting direction, the biasing direction of the biasing means Is switched to the insertion direction, and the disk cartridge is ejected by the biasing force of the biasing means via the lever means and the link means. 3. The link means includes a groove having a predetermined shape formed at an end portion of the disc cartridge in the insertion direction, a rotatably provided link member, and the link member attached to the link member. 3. The magnetic disk device according to claim 2, further comprising: a hook pin that enters the groove, and a pin that is attached to the link member and that engages with the lever means. 4. The lever means has one end protruding toward the insertion port of the disk cartridge of the magnetic disk device, the other end formed in an L shape, and the other end having a different inclination direction. A lever member having two inclined surfaces, wherein the urging means switches the inclined surface of the other end of the lever member to urge the disk cartridge according to the insertion position of the disk cartridge, thereby urging the disk cartridge. 4. The magnetic disk drive according to claim 2, wherein the magnetic disk device is urged by switching to an ejecting / inserting direction. 5. The biasing means includes a roller member that abuts the inclined surface of the lever member, and an elastic member that biases the roller member toward the other end of the lever member. The magnetic disk drive according to claim 4, which is characterized in that.