JP2606038B2 - Recording medium mounting device - Google Patents

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 configured to prevent a recording medium from being mounted in an incorrect direction.

[0002]

2. Description of the Related Art For example, in a magnetic disk drive which performs magnetic recording and reproduction by mounting a disk storage case (hereinafter referred to as a storage case) in which a flexible magnetic disk is stored, the storage case is mounted for mounting in the device. The mounting device includes a holder into which the case is inserted, and a slider which is released by the latch lever and slid by the insertion operation of the storage case. The slider is slidably provided between the holder and the frame that rotatably supports the turntable, and the sliding direction is regulated by a guide pin implanted in the frame.

The projecting pins projecting laterally from both sides of the holder are fitted in inclined grooves provided in side plates of the slider, and are fitted in guide grooves provided in side walls of the frame. Therefore, when the storage case is inserted into the holder and the slider slides, the protruding pin pressed by the inclined groove moves in the mounting direction along the guide groove. Thus, the storage case is mounted in the device together with the holder.

The storage case is provided with an opening (window) for the magnetic head to slide on the magnetic disk, and a shutter for protecting the magnetic disk is closed when not mounted. The shutter is opened by an opening / closing lever in the device when the storage case is inserted into the holder in a correct orientation.
However, if the storage case is inserted in the wrong direction,
If the magnetic head is mounted as it is, the magnetic head abuts on the storage case and is damaged.

Therefore, conventionally, an inclined surface is projected into the holder and a chamfered portion is provided only at the right corner of the front end of the storage case, and the chamfered portion is formed on the inclined surface in the holder only when the storage case is inserted in a correct direction. It was designed to be able to be mounted in contact. Further, when the storage case is inserted into the holder in an incorrect direction, the storage case comes into contact with the inclined surface and the insertion of the storage case is prevented.

[0006]

However, in the above-mentioned device, a clearance is provided between the projecting pin of the holder and the guide groove of the frame, and the projecting pin is moved not only in the mounting direction (up and down direction) but also in the insertion / ejection direction. It can also be displaced slightly (in the front-back direction). Therefore, when the storage case is inserted in the holder in the wrong direction, if the storage case is pressed in a state where the corner of the storage case abuts the inclined surface in the holder and cannot be further inserted, the holder is protruded. It is displaced in the insertion direction by the clearance between the pin and the guide groove. Therefore, if the width of the guide groove is too large, there is a possibility that the clearance with the protruding pin becomes large and the storage case is mounted in an incorrect orientation.

Accordingly, an object of the present invention is to provide a recording medium mounting apparatus which solves the above-mentioned problems.

[0008]

According to the present invention, there is provided a holder into which a recording medium is inserted, a projecting pin projecting laterally from both sides of the holder, and a guide for fitting the projecting pin to guide the movement of the holder. Part, and a moving member that moves the protruding pin along the guide part in accordance with the insertion or ejection operation of the recording medium, wherein the protruding pin is located on the ejection direction side of the guide part. An urging member for urging the holder so as to be pressed is provided.

[0009]

By providing an urging member for pressing the projecting pin of the holder toward the ejecting side of the guide portion, when the recording medium is inserted in an incorrect direction, the operating force is increased by the urging force of the urging member, thereby causing an error. It is easy to see that it is an insertion.

[0010]

1 to 3 show an embodiment of a recording medium mounting apparatus according to the present invention.

In each of the drawings, a magnetic disk drive 1 has a frame 2
A head carriage 3 is provided thereon, and when a disk storage case 4 in which a flexible magnetic disk is stored is mounted, the head carriage 3 moves in the disk radial direction (X direction) while the magnetic head (not shown). ) Is brought into sliding contact with the disk recording surface to perform magnetic recording and reproduction.

A front panel 5 is attached to the front end of the frame 2. The front panel 5 is provided only with an insertion opening 6 into which a disk storage case is inserted and an LED display lens 7 as described later, but is not provided with an eject button. Therefore, the width and thickness of the front panel 5 are smaller than those of the conventional panel (having the eject button), so that the front panel 5 is reduced in size and thickness.

The frame 2 is made of, for example, an aluminum alloy die-cast, and has a flat portion 2a on which a head carriage 3 and a turntable (not shown) for rotationally driving the magnetic disk are provided, and stands on both sides of the flat portion 2a. Side walls 2b, 2
c.

First to third guide grooves (guide portions) 8, 9, and 10 are formed in the side walls 2b and 2c.

[0015] Also, as shown in FIGS. 3 and 4, is on the plane portion 2a of the frame 2 are cylindrical boss 2a ₁ to 2A region ₄ is projected for positioning the mounting height position of the disk housing case 4 .

[0016] Also, FIG. 6 (A), the rear side of the boss 2a as shown in (B) _3, 2a ₄ hole 4 of the disk housing case 4 on
projection 26 for positioning the mounting position in the longitudinal direction (X _1, X ₂ direction) fitted to a projects. The projection 26 is shaped to be removed a conical front (X ₂ direction side), having a vertical wall 26a on the front side. This time eject operation to be described later, because the disk housing case 4 is to be moved to the X ₁ direction from the mounting position.

[0017] Further, the guide groove 8, 10 a lower protruding pins 15 and 16 a triangular notch 8a extending in the X ₁ direction so as to be movable in the X ₁ direction during the eject operation of the holder 12 to be described later, 10a is provided Have been.

A mounting device 11 for mounting a disk storage case is provided on the frame 2.
The mounting device 11 includes a holder 12 into which the disk storage case 4 is inserted, a slider 13 that raises and lowers the holder 12 by a sliding operation to move the holder 12 to an insertion / eject position (non-recording / reproduction position) or a recording / reproduction position, As described later, the locking of the slider (moving member) 13 is released by the insertion operation of the case 4, and when the disk storage case 4 is pressed, the slider 13 is returned and the disk storage case 4 is pressed in the ejecting direction while being returned. And a mechanism 14.

The holder 12 has side plates 12b and 12c bent in a U-shape on both sides of the top plate 12a, and the disk storage case 4 is inserted into a space surrounded by the top plate 12a, the side plates 12b and 12c. 12d. The top plate 12a of the holder 12 is provided with a rectangular opening 12e for the head carriage 3 to enter and an opening 12f for the ejection mechanism 14 to enter.

A pair of projecting pins 15 and 16 project laterally from the side plates 12b and 12c of the holder 12, respectively. The protruding pins 15 and 16 are provided on the side walls 2 b of the frame 2.
The first and third guide grooves 8 and 10 provided in 2c are fitted to guide the holder 12 so that the holder 12 can move up and down to the insertion / ejection position or the mounting position.

Further, the side plates 12b, 12c of the holder 12
A leaf spring (biasing member) 17 is attached at an intermediate position between the pair of protruding pins 15 and 16 provided in such a manner as to be inclined. Incidentally, the upper end 17a of the plate spring 17 is fixed to the top plate 12a of the holder 12, the lower end 17b extends to be elastically deformed in a free end ejection direction (X ₂ direction).

The slider 13 is disposed so as to overlap above the holder 12, and has a top plate 13a formed in a U-shape when viewed from above, and a pair of side plates 13b bent downward from both sides of the top plate 13a. , 13c. The side plates 13b,
13c has a sliding portion 13b _1, 13c ₁ of the sliding contact semicircular flat portion 2a of the frame 2 at its lower end.

The side plates 13b and 13c have inclined grooves 18 through which the projecting pins 15 and 16 of the slider 13 penetrate.
19 are drilled. It is provided so as to downwardly extend as the inclined grooves 18, 19 moves the disk insertion direction (X ₁ direction) as shown in FIG. Therefore, the projecting pins 15, 16 extending through the inclined grooves 18 and 19, the slider 13 is relatively lowered and slides in X ₂ direction to lower the holder 12 to the mounting position. At that time, projecting pin 1
The guide grooves 8, 5 and 16 are pressed by the pressing force of the leaf spring 17.
Sliding contact with the vertical wall 10 eject side of the front (X ₂ direction) while drops hanging direction.

The slider 13 is located on the top plate 13a.₁direction
Arms 13a extending to₁, 13a _TwoSpring hook inside
Arms 20a, 21b, and right arm 13a as viewed from above_Two
At the front end, a locking portion 22 bent downward and an L-shaped
23 is provided. With this L-shaped hook 23
An inclined cam 23a is provided at an inner corner with the end of the arm 13a.
Have been killed. Disk storage case 4 is ejected
When the first lever 31 of the eject mechanism 14 described later
The contact pin 31i of the first lever 31
It comes into contact with the inclined cam 23a. Therefore, the slider 13
When the inclined cam 23a is pressed by the contact pin 31i,
The first lever without changing the stroke of the slider 13.
Since the rotation angle of the first lever 31 can be reduced,
The setting of the spring force of the torsion spring 36 for urging the
And forcibly elastically deform the torsion spring 36 to break it.
Can be prevented.

Further, by providing the inclined cam 23a, the play between the first lever 31 and the slider 13 is reduced, the loss of the ejection operation is reduced, and the ejection operation can be performed smoothly.

Further, as shown in FIG. 4, the right side plate 12c of the holder 12 is provided with an inclined surface 12h for preventing the disk storage case 4 from being inserted in an incorrect direction. The inclined surface 12h is formed so as to correspond to the chamfered portion 4b provided only at the right corner of the front end of the disk storage case 4. Therefore, when the disk storage case 4 is inserted into the holder 12 in a correct direction, the disk storage case 4 can be inserted to a position where the chamfered portion 4b provided at the front end comes into contact with the inclined surface 12h.

However, if the disk storage case 4 is inserted in the wrong direction, the disk storage case 4
The corners other than b are in contact with the inclined surface 12h of the holder to prevent the holder from being inserted into the holder 12.

Further, if the operator presses the disk storage case 4 in the insertion direction without noticing the erroneous insertion, the slider 13
Elastically deformable leaf spring 17 provided with the to the holder 12 and the slider 13 is insertion direction (X ₁ direction) to the pin 15, 16
And the grooves 8, 10 by the clearance.

At this time, since the elastic force of the leaf spring 17 increases, the operation force for pressing the disk storage case 4 increases, and the operator notices that the insertion direction of the disk storage case 4 is wrong. Therefore, erroneous insertion is prevented by the spring force of the leaf spring 17.

Reference numerals 24 and 25 denote coil springs, one ends of which are hooked on spring hooks 20 and 21 of the slider 13, and the other ends of which are hooked on hooks 12 f and 12 g of the holder 12 which covers the slider 13. Therefore, the slider 13 is connected to the coil spring 2
It is biased in the X ₂ direction by the pulling force of 4, 25. The holder 12 and the slider 13 constitute a moving mechanism 11A for moving the disk storage case 5 together with the holder 12.

Here, the configuration of the eject mechanism 14 will be described with reference to FIGS.

As shown in FIGS. 7 and 8, the eject mechanism 14 includes a latch lever 30, which contacts the front end of the disk storage case 4, first to fourth levers 31 to 34, and levers 31 to 34. It is composed of springs 35 to 40 for urging.

As shown in FIGS. 9 (A) to 9 (C), the latch lever 30 has a U-shaped bearing portion 30a as viewed from the side so as to be supported by the shaft 41 of the frame 2, and a bearing portion 30a. A leaf spring-like contact portion 30b that extends, an arc-shaped latch portion 30c that projects laterally from halfway through the contact portion 30b, and a bearing portion 30a that extends in a direction substantially orthogonal to the contact portion 30b 30d. Further, the latch lever 30 is biased in the A ₁ direction by the resilience of the torsion spring 35 which is wound shaft 41 wound on the frame 2.

Since the tip of the contact portion 30b of the latch lever 30 contacts the front end of the disk storage case 4,
It is curved to have a shape. Further, the latch portion 30c to prevent the slider 13 engaged with the engaging portion 22 of the slider 13 described above slides in the X ₂ direction. At the time of ejection, the latch lever 30 and the torsion spring 35 constitute a return mechanism 30A in which the contact portion 30b returns the disk storage case 4 to the ejection direction (non-recording / reproduction position).

The first lever 31 is shown in FIGS.
As shown in the figure, the upper plate 31a and the lower plate 3
1b is connected by a vertical plate 31c, and is formed in a U-shape when viewed from the lateral direction. Upper plate 31a and lower plate 3
Holes 31d and 31e into which the shaft 42 on the frame 2 is fitted are formed in the vicinity of the vertical plate 31c of 1b, and hook-shaped engaging claws 31f protrude from the side of the tip of the lower plate 31. I have.
Also, first and second locking portions 31g and 31h hang down from the side and the tip of the upper plate 31a.

Further, the slider 1 is provided on the upper surface of the upper plate 31a.
The contact pin 31i that abuts on the third hook 23 is upright.

As shown in FIG. 8, the shaft 42 has a torsion.
A spring 36 is wound and one end of the spring 36 is
Contact 1g. Also, the first lever 31 is on the frame 2
The other end of the coil spring 37 hooked on the pin 43
B is locked by the locking portion 31g. ₁In the direction of rotation
You.

The second lever 32 is shown in FIGS. 11A and 11B.
As shown in the figure, a cylindrical hollow shaft 32a through which the shaft 42 is inserted and supported, a base 32b into which the hollow shaft 32a is press-fitted from below, and a shaft 32c implanted on the lower surface of the base 32b are provided. Roller 32d, and projections 32e to 32g cut and raised above the base 32b.

The second lever 32 is supported coaxially with the first lever 31 by a shaft 40 as shown in FIGS. 7 and 8, and the first lever 31 is located above the second lever 32.
Are superimposed.

The torsion spring 36 wound around the shaft 42 has one end in contact with the locking portion 31g of the first lever 31 and the other end in contact with the projection 32g of the second lever 32.
Thereby biasing the lever 31 in the B ₂ direction by biasing the second lever 32 in the B ₁ direction. Also, the coil spring 38
Has one end hooked to a locking portion 31b of the first lever 31,
The other end is hooked on the projection 32f of the second lever 32. Therefore, the first and second levers 31 and 32 are urged in the directions B ₂ and B ₁ by the tensile force of the coil spring 38, respectively.

FIGS. 12A and 12B show the third lever 33.
As shown in the figure, a bearing 33a through which the shaft 44 on the frame 2 is inserted, and a base 33 fixed to the upper end of the bearing 33a.
b and a locking portion 33c standing above the base 33b
And a projection 33d bent downward from the base 33b.

A torsion spring 39 is wound around the bearing portion 33a of the third lever 33. One end of the torsion spring 39 is in contact with the projection 33d, and the other end is engaged with the projection 45 on the frame 2. Has been stopped.

The third lever 33 is connected to the torsion spring 3.
It is biased in the C ₁ direction by the resilience of 9, to rotate the engagement portion 33c in the locking position for locking the locking claw 31f of the first lever 31.

The fourth lever 34 is shown in FIGS. 13A and 13B.
As shown in the figure, a base 34a supported by a shaft 46 on the frame 2, a contact portion 34b rising from _one arm 34a ₁ of the base 34a, and another arm 34a of the base 34a
_The arm portion 34a _{2 includes} a contact portion 34c extending to the distal end of the arm ₂ and a hole 34d formed in the middle of the arm portion 34a2. Also, the base 34a
The projections 34e and 34f that slide on the frame 2
Are projected by half-punching.

As shown in FIG. 8, the coil spring 40 has one end hooked on a pin 47 on the frame 2 and the other end hooked on a hole 34 d of the fourth lever 34. Therefore, the fourth lever 34 is biased in the D ₁ direction by a tensile force of the coil spring 40. The fourth lever 34 contacts the stopper pin 48 on the frame 2 and is held at the contact position. Further, the contact portion 34 c of the fourth lever 34 is close to the locking portion 33 c of the third lever 33.

Here, the operation of the mounting device having the above configuration will be described.

As shown in FIGS. 2 and 14, the front panel 5
Has an opening 6a into which the disc storage case 4 is inserted, and an opening 6a which is largely opened in the vertical direction is provided at the center of the insertion opening 6.

First, the disc mounting operation will be described with reference to FIGS. 15 to 18, and then the ejecting operation will be described. 15, 17, and 18, the springs 35 to 40 are omitted for easy understanding of the operation of each member. (1) Disk mounting operation The disk storage case 4 has the front end 4a at the top and the insertion slot 6
Is inserted into. Thus, inserting a disk housing case 4 in the insertion opening 6 while being pressed in the X ₁ direction, the disk housing case 4 enters into the insertion portion 12d of the holder 12, is held on both sides side plates 12b, to 12c. When the disk storage case 4 is inserted to the inside of the holder 12 at the insertion / ejection position, the front end 4a comes into contact with the contact portion 30b of the latch lever 30 of the eject mechanism 14. Further, when the disk housing case 4 is pressed in the X ₁ direction, the disk housing case 4 causes the latch lever 30 presses the contact portion 30b of the latch lever 30 in the same direction is rotated in the A ₂ direction. Thus, the torsion spring 35 for biasing the latch lever 30 in the A ₁ direction is elastically deformed in a state of accumulated more twisted is bullet揆力.

[0049] Also, by the latch lever 30 is rotated in A ₂ direction, the claw portion 30d presses the roller 32d of the second lever 32 in the same direction, rotating the second lever 32 in the B ₂ direction Let it.

However, the locking pawl 31f of the first lever 31
Is locked to the projection 33d of the third lever 33, so that the first lever 31 and the second lever 32 rotate relatively to each other, and between the first and second levers 31, 32. The spring force of the provided torsion spring 36 and coil spring 38 increases.

Before the insertion (at the time of ejection), the slider 13 is locked by the latch lever 30 as shown in FIG.

[0052] When the latch lever 30 is rotated about 60 degrees A ₂ direction, as shown in FIG. 15, arcuate latch portion 30c
Is separated from the locking portion 22 of the slider 13. for that reason,
The slider 13 slides in X ₂ direction by the pulling force of the spring 24. Pins 15, 16 which fits into inclined groove 18, 19 of the slider 13 is moved downward by the slide operation in the X ₂ direction of the slider 13. Therefore, the holder 12 in which the disk storage case 4 is inserted is lowered to the mounting position. At that time disk housing case 4 is placed on the boss 2a ₁ to 2A region ₄ on the frame 2, and a hole 4a as shown in FIG. 6 (B) is fitted on the projection 26 on the boss 2a _3, 2a ₄ . As a result, the disk storage case 4 is positioned at the predetermined mounting position, and magnetic recording and reproduction can be performed. (2) Eject Operation When the disc is loaded, the disc storage case 4 (indicated by a dashed line) is mounted at a position lower than the insertion slot 6, as shown in FIG. However, the opening 6 is located at the center of the front panel 5.
a is provided, and the rear end of the disk storage case 4 is
It is exposed from a.

[0053] The magnetic recording reproducing after completion, when the ejection is pressed from the opening portion 6a of the front panel 5 the rear end of the disk housing case 4 in the disk insertion direction (X ₁ direction).

The hole 4a of the disk storage case 4 is shown in FIG.
The wall surface 26 of the projection 26 on the bosses 2a ₃ and 2a ₄ as shown in FIG.
until it abuts against the a can move X ₁ direction, moreover the holder 1
3 are provided with the guide grooves 8, 1 of the frame 2 respectively.
0 of notch 8a, it is possible to move the X ₁ direction in 10a, the disk housing case 4 can move in the X ₁ direction together with the holder 12.

[0055] When the disk housing case 4 of the mounting position is displaced in the X ₁ direction, the latch lever 30 as shown in FIG. 17
There further contact with the contact portion 34b of the fourth lever 34 is pressed by the A ₂ direction, and presses it.

Therefore, the fourth lever 34 rotates in the direction D ₂ and presses the contact portion 34 c against the third lever 33.
Thus, the third lever 33 releases the locking of the locking claws 31f of the first lever 31 rotates in the C ₂ direction.

[0057] Thus, the first lever 31 is a torsion spring 36, it is brought into contact with and rotated in the B ₂ direction by the spring force of the coil spring 38 abuts pin 31i into inclined cam 23a of the slider 13.

The spring force for biasing the first lever 31 is greater than the spring forces of the springs 24 and 25 for biasing the slider 13 by the rotation of the second lever 32 as described above. 13 slides in the X ₁ direction. As a result, the holder 12 is inserted /
Ascend to the eject position.

When the slider 13 returns to the eject position as shown in FIG.
Of the latch lever 30
Rotates in the A ₁ direction by the spring force of the torsion spring 35 which is elastically deformed during the insertion operation.

[0060] Latch lever 30 to eject the disk housing case 4 in the X ₂ direction while rotating in the A ₁ direction.
Accordingly, the disk housing case 4 of the holder 12 is pushed out from the insertion opening 6 in the X ₂ direction. Thus, the ejection mechanism 14 returns to the ejection state shown in FIG.

As described above, since the ejection can be performed only by pressing the disk storage case 4, the conventional eject button is not required, and the front panel 5 can be reduced in size and thickness accordingly. Moreover, since the opening 6a provided at the center of the front panel 5 is considerably larger than the eject button, the eject operation can be easily performed.

Although the above embodiment has been described as an apparatus for mounting a storage case having a flexible magnetic disk, the present invention is not limited to the above embodiment. For example, a tape cassette having a magnetic tape, an IC card or an optical disk, an optical disk, Of course, the present invention can also be applied to a device for mounting a recording medium such as a magnetic disk.

[0063]

As described above, the recording medium reproducing apparatus according to the present invention is provided with an urging member for pressing the projecting pin of the holder toward the ejecting side of the guide, so that the recording medium is inserted in an incorrect direction. In addition, the operating force is increased by the urging force of the urging member, so that it is easily understood that the recording medium is inserted in the wrong direction, and the erroneous insertion of the recording medium can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a recording medium mounting apparatus according to the present invention.

FIG. 2 is a perspective view of a magnetic disk drive to which the mounting device of the present invention is applied.

FIG. 3 is an exploded perspective view showing a frame, a slider, and a holder.

FIG. 4 is a plan view of the magnetic disk drive.

FIG. 5 is a side view of the magnetic disk drive.

FIG. 6 is a view showing a boss on a frame on which a disk storage case is placed.

FIG. 7 is a perspective view of an ejection mechanism.

FIG. 8 is a plan view showing an ejection mechanism before a disk storage case is inserted.

FIG. 9 is a view showing a latch lever of the eject mechanism.

FIG. 10 is a view showing a first lever of the eject mechanism.

FIG. 11 is a view showing a second lever of the eject mechanism.

FIG. 12 is a view showing a third lever of the eject mechanism.

FIG. 13 is a view showing a fourth lever of the eject mechanism.

FIG. 14 is a front view showing an inserted state of the disk storage case.

FIG. 15 is a plan view showing the operation of the eject mechanism when the disc storage case is inserted.

FIG. 16 is a front view showing a state where the disk storage case is mounted.

FIG. 17 is a plan view showing the operation when the disk storage case is ejected.

FIG. 18 is a plan view showing an operation when the disk storage case is ejected.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magnetic disk drive 2 Frame 3 Head carriage 4 Disk storage case 5 Front panel 6 Insertion opening 8-10 Guide groove 11 Mounting device 12 Holder 13 Slider 14 Ejection mechanism 15,16 Projection pin 17 Leaf spring 18,19 Inclined groove 22 Lock Part 23 Hook 30 Latch lever 31-34 First to fourth lever 35-40 Spring

Claims (1)

(57) [Claims] 1. A holder into which a recording medium is inserted, a protruding pin protruding laterally from both sides of the holder, a guide portion fitted with the protruding pin to guide movement of the holder, and insertion of the recording medium. A moving member for moving the protruding pin along the guide portion in response to an eject operation, wherein the holder is configured such that the protruding pin is pressed toward the ejection direction side of the guide portion. A recording medium mounting device comprising an urging member for urging.