JP2002050104A - Unit for loading recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent damage on a recording medium associated with loading while realizing the miniaturization and cost reduction of a recording medium loading unit to load and unload the recording medium to the recording and reproducing device. SOLUTION: The recording medium loading unit is provided with: a transport mechanism having a slider 15 to perform the transport operation of a disk cartridge 4 from an ejection position to a loading position; and a protector 21 which moves interlocking with the slider 15 and prevents the disk cartridge 4 from deviating from a fixed transporting path by being connected with the slider 15. The recording medium loading unit is further provided with a load applying means (grooves for damper 2k, protrusions for damper 21f, viscous grease 32) which applies a load to the slider 15 through a protector 21 by applying the load to the movement of the protector 21. Protrusions 21f for damper are integrally formed with the protector 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium mounting apparatus, and more particularly to a recording medium mounting apparatus provided in a recording medium recording / reproducing apparatus such as a magnetic disk apparatus for performing processing for mounting and discharging a recording medium to the recording medium recording / reproducing apparatus. Related to the device.

[0002]

2. Description of the Related Art For example, an electronic device such as a personal computer or a word processor is provided with a magnetic disk device (recording medium recording / reproducing device) as a means for recording and reproducing information. This magnetic disk device is configured such that when a disk cartridge containing a magnetic disk serving as a recording medium is mounted, the magnetic disk is driven to rotate and the magnetic head slides on the magnetic disk, thereby performing magnetic recording and reproduction. Have been.

In the magnetic disk drive, the disk cartridge is transported between a mounting position (a position where recording / reproducing processing is performed on a magnetic disk) and an eject position (a position where the disk cartridge is inserted into / removed from a holder). Transport mechanism. FIG. 12 shows a conventional magnetic disk drive 100.

A transfer mechanism provided in the magnetic disk drive 100 is biased in one direction by a coil spring 102 or the like, and a holder 103 into which a disk cartridge (not shown) is inserted. And a latch lever 105 for locking the movement of the slider 104 when the holder 103 is at the eject position and releasing the lock by inserting the disk cartridge. It has a configuration.

In the above configuration, when the disk cartridge is inserted, the latch lever 105 is pressed by the end of the disk cartridge and rotates, whereby the lock of the slider 104 by the latch lever 105 is released. As a result, the slider 104 is connected to the coil spring 10
2, the holder 103 moves toward the mounting position. Therefore, the disk cartridge stored in the holder 103 is moved to the mounting position, and the magnetic disk in the disk cartridge is chucked on the turntable.

[0006] The disk cartridge is provided with a shutter to protect the magnetic disk provided therein. This shutter is configured to engage with an engaging portion provided at the tip of the latch lever 105 described above. Then, when the latch lever 105 is rotated by the insertion operation of the disk cartridge, the engaging portion moves in the opening direction of the shutter with the rotation, whereby the shutter is opened.

[0007]

When the lock of the slider 104 by the latch lever 105 is released as described above, the slider 104 is urged to move by the coil spring 102, and the holder 103 moves toward the mounting position. However,
When the slider 104 is simply moved by the elastic force of the coil spring 102, the descending speed of the holder 103 is increased, and an impact is generated when the holder 103 reaches the mounting position.
Since this impact is applied to each component of the transport mechanism, there is a possibility that the durability of the transport mechanism may be reduced due to the impact.

When the holder 103 is lowered, the magnetic head provided in the magnetic disk drive 100 comes into sliding contact with the magnetic disk stored in the holder 103. If the lowering speed of the holder 103 is high as described above, Since the magnetic disk suddenly comes into contact with the magnetic head, the magnetic disk and the magnetic head may be damaged.

On the other hand, the magnetic disk drive 100 has a head carriage 1 for moving a magnetic head (not shown).
10 and the upper magnetic head is the upper arm 1
11 are provided. The upper arm 111 is engaged with the holder 103 by a contact portion 112, and the upper arm 111 is urged toward the lower magnetic head by a spring means (not shown).

Therefore, when the holder 103 is at the eject position, the upper arm 111 is at the position where the upper arm is moved upward with the upward movement of the holder 103, and a disk cartridge can be interposed between the upper magnetic head and the lower magnetic head. It has been. When the holder 103 moves toward the mounting position, the upper arm 111 moves toward the lower magnetic head by the elastic force of the spring means. Thereby, the magnetic disk in the disk cartridge is sandwiched between the upper and lower magnetic heads, and in this state, the magnetic recording / reproducing process is performed on the magnetic disk.

However, as described above, the holder 10
If the lowering speed of the third arm 3 is high, the lowering speed of the upper arm 111 is also high, and the magnetic head may strongly collide with the magnetic disk. Therefore, even in this case, there is a possibility that the magnetic disk and the magnetic head may be damaged.

Therefore, in order to solve the above-mentioned problem, there has been provided one provided with a damper for reducing the moving speed of the slider 104. FIG. 12 shows an oil damper 106.
Is provided. This oil damper 10
Reference numeral 6 denotes a configuration in which a pinion gear 107 is provided on an output shaft that generates a damper effect, and the pinion gear 107 is configured to mesh with a rack gear 108 formed on the slider 104. Therefore, the oil damper 106
A damper effect is generated when the slider 104 moves, and the moving speed of the slider 104 is reduced. Thereby, collision between the magnetic disk and the magnetic head can be avoided.

However, as is well known, the oil damper 106 has a large shape due to the configuration in which the oil, the impeller and the like are disposed inside, so that the transport mechanism and the magnetic disk device 100 on which the transport mechanism is mounted are large. There was a problem that would.

In recent years, there has been a strong demand for electronic equipment such as the magnetic disk drive 100 to be reduced in size and cost, and when the oil damper 106 is used, it is not possible to meet the demand for downsizing. Further, since the oil damper 106 is expensive, it cannot meet the demand for cost reduction.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a recording medium mounting apparatus capable of preventing a recording medium from being damaged by mounting while reducing the size and cost. .

[0016]

Means for Solving the Problems In order to solve the above problems, the present invention is characterized by taking the following means.

According to a first aspect of the present invention, there is provided a transport mechanism for transporting a recording medium from an eject position to a mounting position, and a configuration in which the transport mechanism is connected to the transport mechanism to move in conjunction with the transport operation of the transport mechanism. And a protector provided to move between a position where the recording medium is prevented from deviating from a predetermined conveyance path due to the operation of the conveyance mechanism and a position which does not hinder the operation of the conveyance mechanism. And a load applying means for applying a load to the movement of the protector to apply a load to the transport mechanism via the protector, and at least one of the load applying means. The part is configured integrally with the protector.

According to the invention, the load applying means applies a load to the movement of the protector. Further, since the protector is connected to the transport mechanism, the load applied to the protector by the load applying unit is applied to the transport mechanism via the protector. Since the transport mechanism transports the recording medium from the eject position to the mounting position, if the transport mechanism suddenly operates, the recording medium may be damaged or a device in which the recording medium mounting device is disposed (for example, a magnetic disk device). Etc.) may be damaged.

However, when the load applying means applies a load to the transport mechanism via the protector, the operation of the transport mechanism is buffered and abrupt operation is suppressed. Accordingly, it is possible to prevent the recording medium and the device in which the recording medium mounting device is provided from being damaged during the operation of the transport mechanism.

Further, since at least a part of the load applying means is formed integrally with the protector, the number of components of the recording medium mounting device can be reduced and the configuration can be simplified. Cost can be reduced.

According to a second aspect of the present invention, in the recording medium mounting apparatus according to the first aspect, the load applying means comprises:
A viscous member is provided between the protector and a member arranged to face the protector.

According to the present invention, since a load is generated in the movement of the protector by utilizing the viscosity of the viscous member, the load can be reliably applied to the protector (that is, the transport mechanism) with a simple configuration. Further, since the viscous member is disposed between the protector and the member disposed to face the protector, the thickness of the recording medium mounting device can be reduced.

[0023]

Next, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 4 show a magnetic disk drive 1 provided with a recording medium mounting device according to an embodiment of the present invention.

The magnetic disk drive 1 has a configuration in which a holder 5, a slider 15, a shield cover 16, a protector 21 and the like which constitute a recording medium mounting device are provided on a frame 2. Among these components, the holder 5 and the slider 15 are located at a position where the disk cartridge 4 is mounted (a position where recording / reproducing processing is performed on a magnetic disk) and an eject position (a position where the disk cartridge 4 is inserted / removed with respect to the holder 5). And a transport mechanism for transporting the transport mechanism.

The holder 5 into which the disk cartridge 4 is inserted is configured to move up and down in accordance with the mounting operation and the ejecting operation of the disk cartridge 4. The holder 5 has a top plate 5a.
a is an opening 5 through which the magnetic head unit 8 relatively enters.
b is provided. The top plate 5a of the holder 5 includes
While rotating so that the shutter 4a of the disk cartridge 4 is opened in association with the cartridge insertion operation,
A latch lever 6 for locking the slider 15 is rotatably supported.

At the leading end of the latch lever 6, an engaging pin 6a that engages with the shutter 4a while slidingly contacting the front end of the disk cartridge 4 and slides the shutter 4a in the opening direction protrudes. Note that the latch lever 6 is configured to also function as an eject member that presses the disk cartridge 4 in the eject direction (B direction). For this reason, the engagement pin 6a is configured to be inserted into the holder 5 through an arc-shaped hole 5c formed in the holder 5.

The latch lever 6 is connected to the top plate 5 of the holder 5.
The cam 5b is supported by a shaft 5f that is pivotally supported by a, and an arc-shaped cam portion 6b centered on the shaft 5f is formed. The latch lever 6 has a spring retaining hole 6c. The spring retaining hole 6c is formed at a position separated from the shaft hole 6d, into which the shaft 5f is fitted, toward the cam portion 6b. The cam portion 6b locks the slider 15 as described later, and rotates when the disk cartridge 4 is inserted into the holder 5 to release the lock of the slider 15.

The coil spring 7 biases the latch lever 6. One end of the coil spring 7 is engaged with a spring engaging hole 6 c of the latch lever 6, and the other end is engaged with a spring engaging portion 151 of the slider 15. . Accordingly, the latch lever 6 is urged in the counterclockwise direction (shutter closing direction) by the tensile force of the coil spring 7, and the slider 15 is urged in the B direction by the tensile force of the coil spring 7. As described above, since the coil spring 7 is provided to bias the latch lever 6 and the slider 15, the number of components can be reduced as compared with the case where a biasing member is provided for each member. The magnetic head unit 8 includes a carriage 9 movably provided in a disk radial direction (the direction of arrow AB in the figure), a lower magnetic head 10 provided on the top surface of the leading end of the carriage 9, and a base end of the carriage 9. An upper arm 11 (hereinafter, simply referred to as an arm) rotatably supported by 9a and an upper magnetic head 12 provided on the lower surface of the distal end of the arm 11.

The carriage 9 is screwed to a lead screw 14 driven by a stepping motor 13.
The magnetic head unit 8 moves in the A and B directions on the frame 2 according to the rotation of the lead screw. As a result, the magnetic heads 10 and 12 move in the tracking direction of the magnetic disk (not shown).

The arm 11 is provided at the base end 9a of the carriage 9.
Are biased downward (toward the lower magnetic head 10) by the pressing force of a torsion spring (not shown) provided on the lower magnetic head. An abutting portion 11 a projects from the side of the arm 11, and the abutting portion 11 a is configured to abut on the top plate 5 a of the holder 5.

Therefore, when the holder 5 is at the eject position, the arm 11 is at the position moved upward with the upward movement of the holder 5, the lower magnetic head 10 and the upper magnetic head 12 are separated from each other, The cartridge 4 has the respective heads 10,
It can be interposed between the twelve. Meanwhile, the holder 5
Moves toward the mounting position, the upper arm 11 moves toward the lower magnetic head 10 by the pressing force of the torsion spring. Thus, the magnetic disk in the disk cartridge 4 is sandwiched between the heads 10 and 12, and
Then, in this state, the magnetic recording / reproducing process is performed on the magnetic disk.

The slider 15 is provided between the top plate 5a of the holder 5 and the shield cover 16. The slider 15 has a top plate 15 a facing the top plate 5 a of the holder 5.
And the side portion 1 bent downward from both side edges of the top plate 15a
5b and 15c (however, the side portion 14b in FIG. 1 is hidden and cannot be seen). The top plate 15a is provided with a hole 15d for weight reduction.

The side portions 15b, 15c of the slider 15
Are provided with an inclined groove 15e in which a projecting pin 5d projecting from both sides of the holder 5 is fitted, and a guide hole 15f for guiding a sliding operation of the slider 15 in the AB direction. The guide hole 15f is provided in the sliding direction of the slider 15 (in the drawing,
It is formed in a rectangular shape extending in the direction of the arrow AB) and engages with an engagement protrusion 2d provided in a concave portion 2c outside the both side surfaces 2a and 2b of the frame 2 as described later (FIG. 1, FIG. (See FIG. 4).

At both ends of the top plate 15a, contact portions 15o to 15r that slidably contact the upper ends of both side surfaces 2a and 2b of the frame 2 project laterally. Therefore, the slider 15 is restricted from moving downward by the contact portions 15o to 15r contacting the upper ends of both side surfaces 2a and 2b of the frame 2, and is allowed to slide only in the AB direction in the drawing. So that they can be combined. This eliminates the need for a support member for slidably supporting the slider 15 in the direction of the arrow AB, thereby making it possible to reduce the thickness of the magnetic disk drive and the number of components.

As shown in FIGS. 3 and 4, the engaging portions 5e projecting from the center of both sides of the holder 5 engage with the grooves 2e provided inside the both side surfaces 2a, 2b of the frame 2. I have. Thereby, the movement of the holder 5 in the direction of the arrow AB in the drawing is restricted, so that the holder 5 is allowed to move only in the vertical and vertical directions. Also, as mentioned above,
Since the projecting pin 5d formed on the holder 5 is engaged with the inclined groove 15e formed on the slider 15, the holder 5 moves vertically upward (upward) when the slider 15 moves in the direction of arrow A in the figure. The holder 5 moves vertically downward (moves downward) as the slider 15 moves in the direction of arrow B in the figure.

Further, a mounting portion 15g of the eject button 17 protrudes from the front end of the top plate 15a. An arm 15h extending in the direction of arrow A from the top plate 15a of the slider 15
Is formed with a hook 15i bent in a U-shape. The engaging portion 15i is to which the slider 15 is engaged. Further, a holder support 15j is formed at the tip of the hook 15i.

The holder support 15j of the slider 15
As shown in FIG. 10, only the front end is fitted into a long hole 30 formed in the top plate 5a of the holder 5, and the holder support portion 15j
Of the holder 5 comes into contact with the top plate 5a of the holder 5.
The height position of the vehicle. Therefore, before the disk cartridge 4 is inserted into the holder 5, the top plate 5a of the holder 5
Is supported by the step portion 15n of the holder supporting portion 15j and is prevented from being displaced downward. Therefore, the top plate 5 of the holder 5
Even if there is a variation in processing accuracy at a, or when external vibration is applied, the top plate 5a can be prevented from bending downward.

The slider 15 has a tension spring 19
(See FIG. 2). Therefore, one end of the tension spring 19 is hooked on the slider 15, and the other end is hooked on a hook (not shown) projecting from the top plate 5 a of the holder 5. The slider 15 is
When the case is inserted, it is displaced in the direction of arrow B due to the pressing force of the tension spring 19 and the spring 7 described above. When the eject button 17 is pressed during the eject operation,
The slider 15 moves in the direction of arrow A against the pressing force of the tension spring 19 and the spring 7.

A turntable 25 is provided at a predetermined position of the frame 2. This turntable 25
Are driven to rotate by a motor 26.
Therefore, when the magnetic disk in the disk cartridge 4 is placed on the turntable 25, the magnetic disk is rotated at a constant speed by the rotational driving force of the motor 26.

The frame 2 and the shield cover 16
The front bezel 27 is attached to the front end of the front bezel. The front bezel 27 has an opening 2 through which the disk cartridge 4 is inserted and removed.
7a is bored, and a lid 28 for opening and closing the opening 27a is rotatably provided inside the opening 27a.

The lid 28 is urged by the spring force of the torsion spring 29 to close the opening 27a, and rotates in the opening direction with the insertion of the disk cartridge 4. Also, at the front end of the shield cover 16,
A projection 16a is provided to prevent the lid 28 pressed by the disk cartridge 4 from bending.

Next, the protector 21 will be described with reference to FIGS.

The protector 21 (1) regulates the insertion height position of the disk cartridge 4 so that the end of the disk cartridge 4 does not contact the lower magnetic head 10 when the disk cartridge 4 is inserted into the holder 5. And (2) a function of suppressing a sudden movement (downward movement) of the holder 5 from the eject position to the mounting position.

The protector 21 is, roughly speaking, a guide section 2.
1a, an arm 21b, an engagement hole 21d, a projection 21e, a projection 21f for a damper, and the like, and are integrally formed of, for example, resin.

As shown in FIGS. 5, 7, and 8, the protector 21 has an end (the arrow A in the figure) of an arm 21b.
Hole 21g formed in the frame 2) is fitted into the boss 2f formed in the frame 2, and the frame 2 and the slider 1
5, the protector 21 is attached to the frame 2 so as to be rotatable in the directions of arrows X1 and X2 in the figure. At this time, the protector 21
While maintaining the state facing the frame 2, the frame 2
It is configured to rotate above.

A guide portion 21a is formed at the other end of the arm 21b (the end in the direction of arrow B in the figure). A pair of hemispherical projections 21e are formed on the bottom of the guide portion 21a.

The guide portion 21a is configured so that the protector 21 rides on a convex portion 24 formed on the frame 2 by rotating in the direction of arrow X1 in the figure. At this time, since the protector 21 is formed of resin as described above, the arm 21b is connected to the protrusion 2 of the guide portion 21a.
It is elastically deformed with the ride on 4.

The frame 2 has a convex portion 24, and the convex portion 24 has a pair of inclined portions 24a through which the pair of projections 21e slide. The inclined portion 24a is provided at a position corresponding to the rotation position of the guide portion 21a.

Accordingly, when the protector 21 rotates in the direction of the arrow X1 in the drawing, the pair of projections 21e slide on the pair of inclined portions 24a, whereby the guide portion 21a moves upward. The state in which the guide portion 21a has moved upward is shown by a two-dot chain line in FIG. As described above, by adopting a configuration in which the pair of protrusions 21e slide along the pair of inclined portions 24a,
The inclination of the guide portion 21a during the upward movement is suppressed, and the upward movement is stably performed in the horizontal state.

On the other hand, the arm 2 forming the protector 21
An engagement hole 21d is formed at a predetermined position (substantially the center position) of 1b. The engagement hole 21d is a cam hole having an arc shape, and is configured to engage with an engagement pin 15m formed to protrude downward from the engaging portion 15i of the slider 15 described above.

As described above, the engagement pin 15 of the slider 15
m is engaged with the engagement hole 21d, the slider 15
(The slider 15 forms a transport mechanism) and the protector 2
1 has a connected configuration. That is, when the slider 15 moves, the protector 21 rotates about the boss 2f with this movement. Specifically, the slider 15
Is moved in the direction of arrow A in the figure, the protector 21 rotates in the direction of arrow X1. Conversely, when the slider 15 is moved in the direction of arrow B in the figure, the protector 21 rotates in the direction of arrow X2.

That is, when the holder 5 is at the eject position, as shown in FIG. 7, the protector 21 rotates in the direction of the arrow X1, and the guide portion 21a is located at the upwardly moving position on the inclined portion 24a. When the holder 5 is at the mounting position, the protector 21 rotates in the direction of arrow X2,
As shown in FIG. 8, the guide portion 21a is located at a downward movement position where the inclined portion 24a is separated from the downward inclined portion 24a.

A U-shaped portion 21h having a guide hole 21c formed therein is formed near the guide portion 21a. The U-shaped portion 21h is configured to extend into an opening 21i formed in the arm 21b, and thus has a cantilever configuration.

A screw 22 is inserted into the guide hole 21c, and the screw 22 is screwed into the screw hole 2i of the frame 2. The screw 22 has a relatively large head, and is screwed into the screw hole 2i to thereby form a leaf spring member 31 described later.
The U-shaped portion 21h is pressed toward the frame 2 via the.

The surface of the U-shaped portion 21h facing the frame 2 is provided with a damper projection 21f having a substantially elliptical cross section.
Are formed. The damper projection 21f is formed to extend in a direction along the rotation locus of the protector 21 (see FIG. 6F).

The damper projection 21f of the frame 2
A groove 2k for a damper is formed at a position corresponding to the formation position of the damper. This damper groove 2k is also a protector 21
Is formed so as to extend in a direction along the rotation locus of the damper, and the length thereof is set to be longer than the length of the damper projection 21f.

Further, a viscous grease 32 having a predetermined viscosity is loaded inside the damper groove 2k. The viscous grease 32 is loaded over the entire area of the damper groove 2k. The viscous grease 32 is also loaded over the entire area inside the damper projection 21f having a substantially elliptical cross section.

As described above, the protector 21 is rotatably mounted so as to face the frame 2. At this time, the damper projection 21f formed on the protector 21 is provided.
Are configured to enter into a damper groove 2 k formed in the frame 2. That is, in a state where the protector 21 is attached to the frame 2, the damper projection 21f is connected to the viscous grease 3 loaded in the damper groove 2k.
2.

Further, a leaf spring member 31 is provided near the protector 21. The leaf spring member 31 is formed of a spring material, and includes a base portion 31a, an arm portion 3
1b and the pressing portion 31c are integrally formed. The base portion 31a is formed with a concave portion 31f and a hole 31e. The concave portion 31f is configured to engage with a boss 2g formed on the frame 2, and the hole 31e is engaged with a boss 2h formed on the frame 2. Are configured to match
Further, a screw hole 2i formed in the frame 2 is provided in the hole 31g.
The screw 22 to be screwed into is inserted.

Therefore, the recess 31f is engaged with the boss 2g, the hole 31e is engaged with the boss 2h, and the screw 22 is
g and screwed into the screw hole 2i,
The leaf spring member 31 is fixed to the frame 2.

When the leaf spring member 31 is fixed to the frame 2, the pressing portion 31 c formed at the tip of the arm portion 31 b is connected to the damper projection 2 of the protector 21.
The position where 1 f is formed is pressed toward the frame 2. Therefore, by this leaf spring member 31,
The damper projection 21f is always located in the damper groove 2k in which the viscous grease 32 is loaded. Also,
Even if the protector 21 rotates, the leaf spring member 31 presses the position where the damper projection 21f is formed toward the frame 2 as described above, so that the damper projection 21f separates from the damper groove 2k. Never.

As described above, the damper projection 21f is always positioned in the damper groove 2k in which the viscous grease 32 is loaded, so that the protector 21 moves in the directions indicated by arrows X1 and X2 in FIG. In this case, since the viscous grease 32 has viscosity, a force (load) is generated in the damper projection 21f in a direction that prevents the movement. Also, as described above, the protector 2
1 is a slider 1 through an engagement hole 21d and an engagement pin 15m.
5 is connected. Therefore, when a load is applied to the movement of the protector 21,
A force (load) is also applied to the slider 15 via the.

As a result, when the slider 15 moves toward the mounting position, the operation of the slider 15 is buffered and a sudden operation is suppressed. Therefore, the operating speed of the holder 5 during the operation of the slider 15 is also reduced, so that it is possible to prevent the magnetic disk in the disk cartridge 4 from strongly colliding with the magnetic heads 10 and 12 and causing damage.
In addition, since the downward movement speed of the arm 11 that moves with the downward movement of the slider 15 also decreases, the upper magnetic head 12 provided on the arm 11 and the lower magnetic head 10 provided on the carriage 9 collide strongly. This can prevent the magnetic heads 10 and 12 from being damaged.

As described above, the load applying means for applying a load to the movement of the slider 15 includes the damper groove 2.
k, the damper projection 21f, and the viscous grease 32. The inner damper projection 21f is integrated with the protector 21. Therefore, the number of components of the recording medium mounting device can be reduced and the configuration can be simplified, and accordingly, the cost of the magnetic disk device 1 can be reduced.

Further, the damper groove 2k constituting the load applying means is a groove formed on the frame 2, the damper projection 21f is a small projection formed on the protector 21, and the viscous grease 32 is a damper groove. It is arranged in the groove 2k. Further, the protector 21 and the frame 2 are configured to face each other. That is, the load applying means is provided in the gap between the protector 21 and the frame 2. Therefore, the load applying means can be made thinner, and the magnetic disk drive 1 can be made thinner.

The turning radius of the damper protrusion 21f (the distance between the turning center (hole 21g) of the protector 21 and the damper protrusion 21f) is the turning radius of the engaging hole 21d (the turning radius of the protector 21). Moving center (hole 21g) and engaging hole 21
d).
Therefore, when the slider 15 engaged with the engaging hole 21d moves by a predetermined distance, the damper projection 21f moves by the moving distance. With this configuration, a greater damper effect can be obtained than when a load is directly applied to the slider 15, for example.

Next, the operation of the magnetic disk drive 1 having the above configuration will be described.

The magnetic disk device 1 and the recording medium mounting device before the disk cartridge 4 is inserted are in the state shown in FIGS. That is, the slider 15 is locked at a position slid in the direction of arrow A in the figure. Also,
The arm 11 having the upper magnetic head 12 is raised together with the holder 5 to a position where a disk can be inserted. Furthermore,
The latch lever 6 has turned to the eject position, and the protector 21 has turned to the contact preventing position as shown in FIG.

Now, when the disk cartridge 4 is inserted into the holder 5 from the opening 27a of the front bezel 27, the front end of the disk cartridge 4 moves in the direction of arrow A in the figure,
It contacts the contact pin 6a of the latch lever 6. Further, the guide portion 21a of the protector 21 is
9, the front end of the disk cartridge 4 slides on the guide portion 21a of the protector 21 as shown by a two-dot chain line in FIG. Therefore, the disk cartridge 4 travels along the predetermined transport path while being guided by the guide portion 21a, and therefore, it is possible to reliably prevent the disk cartridge 4 from colliding with the lower magnetic head 10.

Further, when the disk cartridge 4 is pressed in the direction of arrow A in the figure, the latch lever 6 rotates and slides the shutter 4a of the disk cartridge 4 in the opening direction. In addition, the cam portion 6b of the latch lever 6 is separated from the engaging portion 15i of the slider 15 with this, and the locking of the slider 15 by the latch lever 6 is released. As a result, the slider 15 starts moving in the direction of arrow B in the figure due to the spring force of the springs 7 and 19.

When the slider 15 starts moving in the direction of arrow B in this way, the engaging pin 15m of the slider 15 is directly engaged with the engaging hole 21d of the protector 21, as described above. The rotation in the direction of arrow X2 in the figure starts in conjunction with the movement of the slider 15.

At this time, the damper projection 21f is inserted into the damper groove 2k in which the viscous grease 32 is loaded as described above.
Is configured to always be located, so that protector 2
When the slider 1 rotates with the movement of the slider 15, a load is generated in the protector 21 by viscous grease 32 in a direction in which the protector 21 is prevented from moving. In addition, since the protector 21 is connected to the slider 15, when a load is applied to the movement of the protector 21,
A load is also applied to the slider 15 via the. As a result, the operation of the slider 15 in the direction of arrow B in the drawing is buffered, and a sudden operation is suppressed.

Accordingly, the descent speed of the holder 5 which is moved up and down by the slider 15 is also suppressed, and it is possible to prevent the magnetic disk from colliding strongly with the magnetic heads 10 and 12 and causing damage. In addition, since the downward movement speed of the arm 11 that moves with the downward movement of the slider 15 also decreases, it is possible to prevent the upper and lower magnetic heads 10 and 12 from colliding and being damaged.

On the other hand, when the protector 21 rotates in the direction of the arrow X2 as described above, the guide portion 21a does not interfere with the mounting movement of the disk cartridge 4 (referred to as a contact release position) as shown in FIG. Evacuation). As described above, since the protector 21 retreats to the contact release position before the disk cartridge 4 descends to the mounting position, the guide portion 21a slides on the inclined portion 24a and moves to a low position on the frame 2. Therefore, the guide portion 21a of the protector 21 is
Protector 21 can be prevented from being in a non-rotatable state by being sandwiched between convex portions 24.

When the slider 15 slides in the direction B, the projecting pins 5d projecting from both sides of the holder 5 are engaged with the inclined grooves 15e provided on both sides 15b and 15c of the slider 15. As the slider 15 slides in the direction B, the protruding pin 5d slides on the inclined groove 15e and is pressed downward.

At the same time, the holder support 15j of the slider 15 moves from the position shown in FIG. 10 to the position shown in FIG.
Is opposed to the step 15n of the holder support 15j, and the height regulation is released.

Thus, the holder 5 is lowered from the disk insertion / ejection position shown in FIG. 3 to the disk mounting position shown in FIG. 4, and the magnetic disk in the disk cartridge 4 is placed on the turntable 22. And the holder 5
The arm 11 pivots downward due to the pressing force of the torsion spring and the upper magnetic head 12 descends. At this time, as the load is applied to the slider 15 as described above, the descent speed of the holder 5 is also reduced, so that the upper magnetic head 12 disposed on the arm 11 may strongly collide with the magnetic disk. There is no.

Thereafter, the turntable 25 is connected to the motor 26
, The magnetic disk rotates together with the turntable 25 and is magnetically recorded and reproduced by the magnetic heads 10 and 12.

The shutter 4 of the disk cartridge 4
Since a is engaged with the engaging pin 6a of the latch lever 6 in the process of being inserted into the holder 5 and slides in the opening direction, the magnetic disk 3 is placed on the turntable 25 and the recording of the magnetic disk is performed. The magnetic heads 12 and 10 are in contact with the surface.

Next, the ejecting operation of the magnetic disk device 1 having the above configuration will be described.

When ejecting the magnetic disk mounted as described above together with the disk cartridge 4, the eject button 17 is first pressed in the direction of arrow A in the figure. As a result, the guide hole 15f of the slider 15
And is slidably engaged in the recess 2c to restrict upward movement by the engaging protrusion 2d of the recess 2c, and the contact portions 15o to 15r are provided on both sides 2a of the frame 2. , 2b is slid in the AB direction in a state in which it is prevented from dropping by contacting with the upper ends of the upper and lower ends and is prevented from dropping.

When the slider 15 slides in the direction of arrow A in this manner, the holder 5 is raised to the disk insertion / ejection position by an operation reverse to the operation of inserting the disk cartridge. Also, since the engaging hole 21d is directly engaged with the engaging pin 15m of the slider 15, the protector 21 slides in the direction A and rotates about the pin 2f in the direction of the arrow X1 in the figure. I do. Thereby, the guide portion 21a of the protector 21 reaches the contact preventing position where the pair of protrusions 21e ride on the inclined portion 24a of the convex portion 24 on the frame 2 as shown by the two-dot chain line in FIG.

Press the eject button 17 as described above,
When the slider 15 and the protector 21 move accordingly, the above-described load acts in a direction that impedes the pressing force of the eject button 17. However, the eject button 1
The operator presses the viscous grease 32 and presses the viscous grease 32.
Is much smaller than the force by which the operator normally presses the eject button. For this reason, even if the above-described load applying means is provided, the operability of the eject button 17 does not deteriorate.

On the other hand, when the slider 15 moves in the direction A, the coil spring 7 stretched between the latch lever 6 and the slider 15 is pulled, and the spring force of the spring 7 increases. Then, when the spring force of the coil spring 7 becomes the strongest, the locking of the cam portion 6b by the locking portion 15i is released, so that the latch lever 6 rotates vigorously by the spring force of the coil spring 7 and the disk cartridge 4 Can be ejected reliably.

Further, since the holder supporting portion 15j of the slider 15 is returned from the position shown in FIG. 11 to the position shown in FIG. 10, the step 15n of the holder supporting portion 15j is elongated in the holder 5. The top plate 5a of the holder 5 is supported at a distance from the base plate 30 to regulate the height position of the top plate 5a. Thus, after the disk cartridge 4 is ejected from the holder 5, the top plate 5a of the holder 5 is
The top plate 5a is supported by the step portion 15n of j, and is prevented from being displaced downward. The position can be prevented from lowering. In the above embodiment, an example in which the present invention is applied to a magnetic disk device has been described. However, the application of the present invention is not limited to this. For example, an optical disk device or a magneto-optical disk device may be used. It can be applied widely.

[0087]

According to the present invention as described above, the following various effects can be realized.

According to the first aspect of the present invention, since the load applying means applies a load to the transport mechanism via the protector, the operation of the transport mechanism is buffered and abrupt operation is suppressed. Accordingly, it is possible to prevent the recording medium and the device in which the recording medium mounting device is provided from being damaged during the operation of the transport mechanism.

Further, since the load applying means is provided integrally with the protector, it is not necessary to separately provide an oil damper or the like in order to prevent an abrupt operation of the transport mechanism as in the prior art. The number of parts of the apparatus can be reduced, the configuration can be simplified, and the cost can be reduced.

According to the second aspect of the present invention, since a load is generated in the movement of the protector by using the viscosity of the viscous member, the load is reliably applied to the protector (that is, the transport mechanism) with a simple configuration. can do. Further, since the viscous member is disposed between the protector and the member disposed to face the protector, the thickness of the recording medium mounting device can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a magnetic disk drive equipped with a recording medium mounting device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a magnetic disk drive equipped with a recording medium mounting device according to an embodiment of the present invention.

FIG. 3 is a side view of the magnetic disk device equipped with the recording medium mounting device according to one embodiment of the present invention in an ejected state.

FIG. 4 is a side view in a mounted state of a magnetic disk device on which a recording medium mounting device according to an embodiment of the present invention is mounted.

FIG. 5 is an exploded perspective view showing, in an enlarged manner, the vicinity of a protector of the recording medium mounting device according to an embodiment of the present invention.

FIG. 6 is an enlarged six view showing the protector.

FIG. 7 is an enlarged plan view showing the vicinity of the protector when the recording medium mounting apparatus according to the embodiment of the present invention is in an ejected state.

FIG. 8 is an enlarged plan view showing the vicinity of the protector when the recording medium mounting apparatus according to the embodiment of the present invention is in a mounted state.

FIG. 9 is a diagram for explaining the operation of the protector.

FIG. 10 is a side view of a holder support that supports the holder.

FIG. 11 is a side view for explaining an operation of lowering a holder to a mounting position.

FIG. 12 is a perspective view of a magnetic disk drive equipped with a recording medium mounting device as an example of the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magnetic disk drive 2 Frame 2k Damper groove 4 Disk cartridge 5 Holder 6 Latch lever 7 Coil spring 8 Magnetic head part 9 Carriage 10 Lower magnetic head 11 Arm 11a Contact part 12 Upper magnetic head 13 Stepping motor 14 Lead screw 15 Slider 15m Engagement pin 16 Shield cover 17 Eject button 19 Compression spring 21 Protector 21a Guide part 21b Arm 21c Guide hole 21d Fitting hole 21e Projection 21f Projection for damper 24 Convex part 24a Inclined part 31 Leaf spring member 31a Base part 31b Arm part 31c Press Part 32 viscous grease

Claims (2)

[Claims] A transport mechanism configured to transport a recording medium from an eject position to a mounting position; and a transport mechanism connected to the transport mechanism to move in conjunction with the transport operation of the transport mechanism. A recording medium comprising a protector provided to move between a position for preventing the recording medium from deviating from a predetermined conveyance path due to the operation of the mechanism and a position not obstructing the operation of the conveyance mechanism. In the mounting device, a load applying unit that applies a load to the transport mechanism through the protector by applying a load to the movement of the protector is provided, and at least a part of the load applying unit is integrated with the protector. A recording medium mounting apparatus characterized by a general configuration. 2. The recording medium mounting device according to claim 1, wherein the load applying unit includes a viscous member provided between the protector and a member disposed so as to face the protector. A recording medium mounting device characterized by the above-mentioned.