JPH0479064A - Disk device - Google Patents

Abstract

PURPOSE:To contrive thickness reduction and miniaturization of the device by mounting a cassette guide vertically movably according to the loading/ nonloading of a disk cassette, providing an elastic member underneath the cassette guide and bringing the disk cassette inside the cassette guide into contact with an upper side of the cassette guide. CONSTITUTION:In a base 10, the cassette guide 20 is mounted vertically movably to the base 10. Then, a slide plate 23 formed with a cam part for the purpose of regulating the cassette guide in its position in the right and left directions and vertically moving the cassette guide is mounted underneath the cassette guide 20. Then, the slide plate 23 is always energized forwardly by a tension spring 25 stretched between the plate and the base 10. By this method, the device is reduced in thickness and miniaturized.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk device that records on or plays back from a disk, and more specifically, the present invention relates to a disk device that performs recording on or playback from a disk. Regarding the structure of a cassette guide for guiding.

[Conventional technology]

The above-mentioned disk device is a device that records or reproduces information on a disk-shaped recording medium such as a magnetic disk or a laser disk.A disk serving as the recording medium is inserted and ejected, and is driven by a motor. It is configured to perform recording or reproduction while rotating the disk and moving the head in contact with or close to the disk.

In this case, the head is mounted on a radially movable carriage, and can be moved (seek) to any track position along the radial direction of the disk by driving the carriage with a motor.

The disk device includes an insertion/ejection means for mounting and ejecting a disk on a base that supports each component;
゛A disk rotation driving means for rotating the disk by a motor, a head seeking means for moving the head to an arbitrary track position along the radial direction of the disk, a head loading means for loading and unloading a head onto and from the disk, etc. are provided.

Furthermore, disc mounting! A control circuit for controlling the whole, a connector for 11m connection, etc. are provided, and the control circuit is connected to a host device etc. via an interface.

Such a disk device is used as an external storage device for electronic equipment such as a personal computer or a word processor, and although it may be configured as an independent device, it is generally incorporated into the main body of the electronic equipment in many cases.

Furthermore, as electronic devices become smaller and more portable, there is a strong demand for the disk devices to be smaller, lighter, and thinner.

By the way, the insertion/ejection means for loading and ejecting the disk includes a cassette guide having a guiding function for inserting, ejecting, loading, and unloading the disk cassette;
The slide plate includes a cam portion for raising and lowering the cassette guide.

[Technical Problems to be Solved by the Invention] In conventional disk devices, the disk cassette is guided and held inside the cassette guide with a predetermined gap provided in the vertical direction.

However, in such a cassette guiding and holding structure, the cassette is normally in contact with the lower side of the cassette guide due to its own weight. There is a technical problem in that it is necessary to take the above-mentioned gap into account and ensure an extra space, which increases the thickness (height) of the disk device, making it difficult to make the device thinner and smaller. Ta.

In addition, due to the above-mentioned gap, when the cassette is inserted, the cassette may tilt within the cassette guide and its tip may be displaced upward, so the vertical gap between the cassette and the head above it may be reduced accordingly. It becomes necessary to configure extra settings,
From this point of view as well, there is a technical problem in that the thickness of the disk device increases, making it difficult to make the device thinner and smaller.

The present invention has been made in view of such conventional technical problems, and even when securing the required vertical clearance between the disk cassette and the cassette guide, the vertical stroke of the cassette guide can be reduced. Furthermore, the vertical gap between the cassette guide and the head above the cassette guide can be set small.
An object of the present invention is to provide a disk device that can be made thinner and smaller.

[Means for solving problems]

The present invention provides a disk device that performs recording or playback on a disk by rotating the disk as a recording medium and moving a head in a predetermined direction.
A cassette guide having an unloading guide function is installed so that it can be raised and lowered depending on whether the disc cassette is installed or not, and an elastic member or elastic section is provided on the lower side of the cassette guide. By configuring the disk cassette to abut against the upper side of the cassette guide, even when securing the required vertical clearance between the disk cassette and the cassette guide, the vertical stroke of the cassette guide can be set small. ,
Furthermore, it is an object of the present invention to provide a disk device in which the vertical gap between the cassette guide and the head above the cassette guide can be set small, thereby making the device thinner and smaller.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings.

In addition, in each of the following drawings, all the same reference numerals indicate the same or corresponding parts.

First, the overall structure of an example of a disk device suitable for applying the present invention will be described with reference to FIGS. 1 to 17.

Fig. 1 is a plan view of the disk device, Fig. 2 is a right side view taken from line ■-■ in Fig. 1, and Fig. 3 is a front view taken from line ■-■ in Fig. 1. It is a diagram.

In the first to third figures, each component is housed in a box-shaped base 10 with an open top surface, and the base l
A cover 12 is attached to the upper surface of O.

Furthermore, a front panel 16 is attached to the front surface of the base 10, in which a cassette insertion opening 15 into which a disk cassette 14 is inserted and ejected is formed.

The base 10 is formed of a thin and small casing made of metal such as aluminum, and the cover 12 is for magnetic shielding and dustproofing, and is made of a thin non-magnetic material such as aluminum. It is formed from a plate-shaped member.

Incidentally, protrusions 17 are formed at the front and back on both sides of the base 10, and notches 18 are formed at the front and back on both sides of the cover 12, and the cover 12 has each protrusion 17 engaged with each notch 18. Positioning is fixed.

FIG. 4 is a plan view of the disk device of FIG. 1 with the cover removed.

In FIG. 4, inside the base 10, the insertion and ejection of the disk cassette 14 into the device and the loading of the disk into the device are carried out.
A cassette guide 20 for guiding unloading is attached to the base 10 so as to be movable up and down.

5 is a diagram showing a cross section of the base lO and the cassette guide 20 along the line V--■ in FIG. 4, and FIG. 6 is a partial side view taken from the line V--■ in FIG. 4. It is.

4 to 6, the cassette guide 20 has a shape that guides and holds the disk cassette 14, and guide bins 21 are provided on both sides of the cassette guide 20.

On the other hand, vertical grooves 22 are formed on both sides of the base 10, into which the guide pins 21 of the cassette guide 20 are slidably fitted.
It is mounted so that it can move within a predetermined range in the vertical direction along the .

Inside the disk cassette 14, a disk (such as a hard disk) as a recording medium is stored so as to be accessible from the outside.

Figure 7 shows the cassette guide 2 from the disk device in Figure 4.
It is a top view which shows the state which removed 0.

In FIG. 7, a cam portion is formed on the lower side of the cassette guide 20 to regulate the left-right position of the cassette guide and to raise and lower the cassette guide.
A slide plate 23 having a rising portion 27 is attached.

The slide plate 23 is mounted inside the base 10 so as to be slidable within a predetermined range in the front and rear directions.

A disk-shaped disk drive motor 24, which will be described later, is mounted approximately at the center of the bottom surface of the base 10, and the slide plate 23 is attached to the disk drive motor 24, which will be described later.
It has a shape with a notch in the center so as to avoid 4.

Further, the slide plate 23 has its lower surface supported by a plurality of (for example, four) protrusions (not shown) formed on the base 10, and further has long projections (not shown) formed on the left and right sides of the slide plate. hole 29, base 10
By engaging the headed pin 30 fixed to the
It is installed so that it can be moved (slided) within a predetermined range in the front and rear directions, while being prevented from moving upward.

The slide plate 23 is moved forward (front panel 1) by a tension spring 25 stretched between it and the base 10.
6) is always energized.

On the other hand, the slide plate 23 can be engaged with a latch member 26, which will be described later, and in the engaged (latched) state is held at the rear position (the position shown in FIG. 7) against the tension spring 25. .

As shown in FIGS. 4 and 7, rising portions 27 for regulating the left and right positions of the cassette guide 20 are formed at the front and rear sides of both sides of the slide plate 23 (four locations in total).

Each rising portion 27 has a cam portion (cam groove) 65 (a cam groove) having a function of raising and lowering the cassette guide 20 and determining the forward position of the slide plate 23 according to the vertical position of the cassette guide (a kind of stopper). 13
14) are formed.

The lowering position of the cassette guide 20 is regulated by the height of the disk (specifically, the boss portion thereof) magnetically attracted to the rotor of the disk drive motor 24.

Front and rear of both sides of this cassette guide 20 (4 locations in total)
, each of the cam portions (cam grooves) of the slide plate 23
A cam pin 28 (FIG. 4) is provided which engages 65.

In this way, when the slide plate 23 is in the rear position due to the engagement between the cam portion 65 and the cam pin 28,
The cassette guide 20 is held in the raised position (Fig. 13).
When the latch member 26 is released and the slide plate is moved forward by the tension spring 25, the cassette guide 20 is lowered to the disk loading position (FIG. 14).
It is configured as follows.

When ejecting the disk cassette 14 set in the disk device, push the eject button 31 attached to the slide plate 23 from above the front panel 16, move the slide plate to the rear position, and release the launch member. 26 is rotated back by the spring force, and the disk cassette 14 is ejected forward by the rotating force.

In FIG. 4 and FIG. 7, a head moving means (head moving means) 33 is provided in the heath lO.

This disk seek means 33 is for moving a head unit 32 (FIG. 4) having a recording/reproducing head to an arbitrary track position along the radial direction of the disk positioned and mounted on the drive motor 24. This is the mechanism.

Note that the head moving means for loading and unloading the head onto the disk is as described below.
It is provided within the head unit 32.

Therefore, the spacing seek means 33 includes a motor (for example, a stevening motor) 34 as a driving source, a screer shaft 35 for converting the rotation of the motor into radial movement of the head unit 32, and a radial movement of the head unit 32. a guide bar 36 for accurately guiding movement;
Each of these components is composed of Heath 1
0 at a predetermined position.

FIG. 8 is a partial plan view showing the main parts of the disk cassette before it is installed (latch member engaged state = latch shape!
This figure is a plan view showing the same part as FIG. 8 when the disk cassette is installed (latch member released state=latch released), and FIG. 10 is a side view of FIG. 9.

Next, referring to FIGS. 8 to 10, slide plate 2
3 and the operations of the latch member 26 will be described in detail.

The latch member 26 is rotatably mounted around a vertical pin 41 provided on the base 10, and is rotated counterclockwise in FIG. 8 by an ejector spring 42 engaged with the latch member and the base. It is constantly biased in the direction.

This latch member 26 includes an arcuate engagement edge 43 and a slide edge (
or a stopper edge) 44 is formed.

In the launch state shown in FIG. 8, a retaining portion (falling portion) 45 formed on the slide plate 23 is engaged with the engagement edge 43, and the slide plate is held in the rear position against the tension spring 25. has been done.

The launch member 26 also includes a disk cassette 14.
A push-out arm 46 is provided which abuts the front end of the.

The pushing arm 46 functions as an ejector for pushing out the disk cassette 14 when ejecting the cassette, but when inserting the cassette, it functions as a cassette opening member that opens the shutter 47 of the disk force port 14, as shown in FIG. It is.

When the disk cassette 14 is inserted (in the direction of arrow B) in the latched state shown in FIG. When the final position is reached, the engaging edge 43 separates from the retaining portion 45 of the slide plate 23 and becomes unlatched, and the slide plate 23 is moved in the direction of arrow C by the tension 25, as shown in FIG. cassette attached L! i (lunch cancellation letter IJ
i) becomes

At this time, the launch member 26 is held in the position shown in FIG. 9 by the contact between the engaging portion 45 of the slide plate 23 and the slide edge 44 (rotation direction stopper), and in this state, the launch member 26 is held in the position shown in FIG. By the push-out arm 46,
The shunter 47 of the disk cassette 14 is opened to the left in FIG. 8 against the spring force, and the disk cassette 7) is in an open state (recordable and reproducible!).

On the other hand, when ejecting the disk cassette 14, press the eject button 31 (FIG. 7) and push the slide plate 23 in the direction of the arrow (FIG. 9). The corresponding arm 26 is rotated in the direction of arrow E (FIG. 9) by the ejector spring 42, and the disk cassette 14 in contact with the push-out arm 46 is ejected forward by the rotational force at that time. be done.

FIG. 11 is a plan view of the motor 24 for rotationally driving the disk (recording medium) in the disk drive center 14, and FIG. 12 is a cross-sectional view taken along line X■X■ in FIG. be.

As the motor 24 for driving the disk, a flat motor with circumferentially opposed type and an outer circumferential rotor is used.
The motor is mounted on the base 10.

11 and 12, 51 is a stator yoke fixed to the hess 10 with screws 52, and on the stator yoke are a bearing housing 55 holding bearings 53 and 54, a stator 56, a coil 57, etc. Fixed side components are installed.

A spindle shaft 58 is pivotally supported by the bearings 53 and 54, and a disk-shaped outer peripheral rotor 60, an adsorption magnet 61 for adsorbing a disk on the rotor, and an adsorption magnet on the adsorption magnet are attached to the spindle shaft through a flange 59. Rotation-side components such as a disk drive pin 62 and a drive magnet 63 fixed to the inner surface of the rotor 60 so as to face the stator 56 are attached.

Actually, the base 10 has rotor removal stop portions 37 and 38 for preventing the rotor 60 from moving upward.
．． 39 is formed by cutting and raising a part of the cough base.

When the disk cassette 14 is installed, a magnetic body (not shown) provided at the center of the disk is magnetically attracted to the attraction magnet 61, and an engagement hole (not shown) of the disk is aligned with the drive pin. By being fitted into the rotor 62, the disk (recording medium) is accurately positioned and attached to the rotor 60.

FIG. 13 and FIG. 14 are side views showing the operation of the cassette guide 20. FIG. The figure shows a state in which the cassette guide is lowered (when a disk cassette is installed).

In FIGS. 13 and 14, the slide plate 2
A groove-shaped cam portion 65 is formed in each of the rising portions 27 provided on both sides of the cam portion 3 .

As shown in the figure, each cam groove 65 is composed of a horizontal groove on the front side (front panel side) and an inclined groove inclined rearward and downward from the horizontal groove.

Each cam groove 65 has a cassette guide 20 as described above.
The cam pins 28 provided on both sides of the cam are engaged with each other.

The guide pins 21 provided at the center of both sides of the cassette guide 20 are engaged with the vertical grooves 22 (indicated by two-dot chain lines) of a predetermined length formed on both sides of the base 10. The cassette guide 20 moves only in the vertical direction (
It is installed so that it can be moved up and down.

Therefore, in the state shown in FIG. 13, the front panel 16
When the disk cassette 14 is inserted into the cassette insertion slot 15 and pushed all the way in, the latch member 26 is rotated by the tip of the cassette, as explained in FIGS. 8 and 9, and the slide plate 23 is rotated. The engaging portion 45 separates from the engaging edge 43, and the slide plate engages the tension spring 2.
5 in the direction of arrow C (direction toward the front panel 16).

Therefore, each of the cam bins 28 (four locations in total) is moved downward by each cam groove (cam portion) 65, and the cassette guide 20 is lowered to the cassette mounting position shown in FIG. 14.

In this case, the lowering position of the cassette guide 20 is regulated,
In addition, since each cam groove 65 is engaged with each cam pin 2nd, the slide plate 23 is at the forward stop position (14th
) is determined by the shape of the cam portion 65.

Note that reference numerals 66 in FIGS. 13 and 14 indicate protrusions for supporting the slide plate 23 provided at a plurality of locations on the base 10.

FIG. 15 is a side view showing the structure of the navel 32 (FIG. 4).

In FIG. 15, the head unit 32 has a structure in which each component is mounted on a carriage 68.

Also attached to the carriage 68 are an upper head 69 for recording and reproducing information on the upper surface track of the disk, and a lower head 70 for recording and reproducing information on the lower surface track of the disk.

The head unit 32 (or carriage 68) has a shape having a predetermined length in the radial direction, as shown, so that each head 69, 70 can record and reproduce each track.

Therefore, the lower head 70 is attached to the leading end of the carriage 68.

On the other hand, the upper head 69 is attached to the carriage 6 so as to be movable up and down.

In the illustrated example, an arm 72 is attached to the carriage 68 via a leaf spring 71 so as to be movable up and down, and an upper head 69 is attached to the tip of the arm.

The upper head 69 and the lower head 70 are attached at positions facing each other.

The leaf spring 71 and the support member 73 are fixed to the carriage 68 by screws 74 .

The support member 73 has a head loader that biases the arm 72 toward the disk to put the Hendro 9 in a loaded state (a state in which it contacts or approaches the disk and is capable of recording or reproducing). A spring 75 is attached.

A head 69 indicated by a two-dot chain line indicates a loaded state of the head.

Further, on the side surface (one side or both sides) of the arm 72,
A projecting portion (lifting point) 76 is formed for lifting (unloading) the arm by utilizing the lifting of the cassette guide 20.

Note that the two-dot chain lines 14A and 14B in FIG. 15 indicate the relative positions of the disk cassette 14 in the radial inner and outer positions of the head unit 32.

Further, a two-dot chain line 24A indicates the relative position of the disk drive motor 24 when the head unit 32 moves to the innermost position.

By moving the carriage 68 in the radial direction by the motor 34, the head unit 32 performs a radial seek operation.

FIG. 16 is a partial plan view showing the relationship between the head unit 32 and the head seek means with the arm 72, upper head 69, etc. in FIG. 15 removed, and FIG. 17 is a partial plan view showing the relationship between the head seek means and the line X -X■ is a cross-sectional view along the line.

16 and 17, a head seek motor (for example, a stepping motor) 34 is attached to the rear wall portion 10A of the base 10, and both ends of a screw shaft 35, which is an output shaft thereof, Rear wall part 1
It is rotatably supported by the 0A and the rising portion 10B.

In addition, the carriage (head carriage) 6th seek (
Both ends of the guide bar 36 that guides the radial movement are supported in parallel to the radial direction by the rear wall portion 10A of the base 10 and another rising portion 10C.

Therefore, a plate bush 78 is attached to the lower surface of the overhanging portion 77 of the carriage 68, and is pressed against the screw shaft 35, and the carriage extends laterally and is attached to the lower side of the screw shaft 35. A needle pin 79 is fixed which engages the groove.

Therefore, when the screw shaft 35 is rotated by the motor 34, the head unit 32 (carriage 6th) moves in the radial direction of the disk via the needle pin 79, and a seek operation is performed to align the head 69, 79 with an arbitrary track. will be carried out.

Furthermore, bearing portions 80 that are slidably fitted to the guide bar 36 are provided at three locations on the opposite side of the carriage 68;
The head unit 32 is configured to be able to accurately guide the head unit 32 during the seek operation.

Note that the head unit 7) 32 shown by the solid line in FIG.
The heads 69, 70 are shown in the innermost trunk position, and the dash-dot line 32 in FIG. 16 shows the head unit 32 when the head is in the outermost trunk position.

FIG. 18 is a bottom view of a cassette/seven tray guide of a disk device according to an embodiment of the present invention, and FIG. 19 is a partially enlarged elevational view taken along line XIX-XIX in FIG. 18.

In Figures 18 and 19, the cassette guide 2
0 has a guiding function for inserting, ejecting, loading, and unloading the disk cassette 14, and has a substantially flat upper guide surface 81, left and right side surfaces 82, 82, and left and right rail-shaped (band-shaped) lower parts. It is composed of a single part in which guide surfaces 83 and 83 are integrally formed.

The disk cassette guide portion formed by the inner surface of the cassette guide 20 is dimensioned to form a predetermined amount of clearance vertically and horizontally between it and the disk cassette 14 to be inserted.

Moreover, this cassette guide 20 is shown in FIG.
As explained with reference to FIG. 4, it is mounted in the base 10 so that it can be raised and lowered by a cam mechanism between it and the slide plate 23, and is raised and lowered depending on whether the disc cassette 14 is installed or not. It is something.

Therefore, each of the left and right lower guide surfaces 83 is provided with a plurality of positions in the front and rear directions (in the illustrated example, two positions on the left and right, a total of four positions).
An opening 84 is formed in the opening 84.

A plate spring 85 is fixed to the lower surface of each lower guide surface 83 near each opening 84 by spot welding or the like.

Each of the leaf springs 85 is formed into a curved shape projecting upward as shown in FIG.
4) protrudes from the guide surface by a predetermined height.

The protrusion height of the leaf spring 85 from the disk cassette guide surface is such that the disk cassette 14 to be inserted is pressed against the upper guide surface with a predetermined pressing force, and as shown in FIG. It is set so that all the directional play δ occurs on the lower side of the disk cassette 14.

The plate spring 85 can be made of various elastic members such as metal or plastic as long as it has elasticity in the vertical direction.
It can also be formed of an elastic part (for example, a thin part) that is integrated with.

In this way, the disk loading according to the present invention, that is, the disk as a recording medium is rotated and the head 69
The cassette guide 20, which has the function of guiding the insertion, ejection, loading, and unloading of the disc cassette 14, is moved in a predetermined direction to guide the insertion, ejection, loading, and unloading of the disc cassette 14 in a disc device that performs recording or playback on the disc. The cassette guide 2 is mounted so that it can be raised and lowered depending on whether the cassette guide 20 is mounted or not, and an elastic member or elastic portion 85 is provided on the lower side 83 of the cassette guide 20.
0 in the disk cassette 14 on the upper side of the cassette guide 81
A disk device is configured in which the disk is brought into contact with the disk.

According to the embodiment described above, by providing the elastic member or elastic part (plate spring) 85 on the lower side of the cassette guide 20, the disk cassette 14 is pressed against the upper side of the cassette guide, and the vertical play δ is suppressed. Since the structure was configured so that all the light was generated on the lower side, the following effects were obtained.

) The disk cassette 14 requires a certain lifting and lowering stroke to load and unload the disks to and from the rotary drive motor 24, but according to the structure of the above embodiment, the disk cassette 14 is always in contact with the upper side. Since they are in contact with each other, the lower gap δ can be used for the lifting stroke of the disk.

Therefore, it becomes possible to set the vertical stroke of the cassette guide 20 to a correspondingly small value, and it becomes possible to reduce the thickness and weight of the disk device.

11) In the above embodiment, since the disk cassette 14 is biased so as to always come into contact with the upper guide surface 81, the inclination of the disk cassette 14 at the time of insertion can be reduced.

Therefore, the tip of the cassette 14 (on the back side of the device) can be prevented from tilting upward, and the gap between it and the components above the cassette guide, such as the head unit 32, can be set small accordingly. From this point of view as well, it has become possible to make the disk device thinner.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in a disk device that performs recording on or playback from a disk by rotating a disk as a recording medium and moving a head in a predetermined direction, a disk cassette can be used. A cassette guide having guiding functions for insertion, ejection, loading, and unloading is installed so that it can be raised and lowered depending on whether the disc cassette is installed or not, and
) By providing an elastic member or an elastic part on the lower side of the guide, the disk cassette in the cassette guide is brought into contact with the upper side of the cassette guide, so that the required vertical direction is created between the disk cassette and the cassette guide. Even when securing a gap, the vertical stroke of the cassette guide can be set small, and the vertical gap between the cassette guide and the head above it can be set small, thereby making the device thinner. Furthermore, a disk device that can be made smaller is provided.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a disk device suitable for applying the present invention, Fig. 2 is a side view taken from the line - - in Fig. 1, and Fig. 3 is a side view taken from the line - - in Fig. 1. 4 is a plan view of the disk drive shown in FIG. 1 with the cover removed; FIG. 5 is a cross-sectional view taken along line VV in FIG. 4; and FIG. Fig. 7 is a plan view of the disk device shown in Fig. 4 with the cassette guide removed, Fig. 8 is a partial side view taken from the middle line
FIG. 9 is a partial plan view showing the latch member in FIG. 8 in the unlatched state; FIG. 10 is a side view taken from line X-X in FIG. 9. Figure 11 is a plan view of the disk rotation drive motor in Figure 7, Figure 12 is a longitudinal sectional view taken along line x-xn in Figure 11, and Figure 13 is the cassette guide in Figure 4. Fig. 14 is a side view showing the cassette guide in a lowered state from Fig. 13, Fig. 15 is a side view of the head unit in Fig. 4, and Fig. 16 is a side view of the head unit in Fig. 4. FIG. 17 is a cross-sectional view taken along the line X--X in FIG. 16, and FIG. 18 is a partially cutaway plan view showing the head seek means of FIG. FIG. 19 is a bottom view showing the cassette guide of the disk device according to the example, and is a partially enlarged royal sectional view taken along line XIX-XIX in FIG. 18. Below, symbols representing main components in the drawings are listed. IO--Base, 12--Cover, 14-disk cassette, 16--Front panel, 2
0 Cassette guide, 23---Slide plate, 24--1--Disk rotation drive motor, 25
- Bow tension spring, 26---Lasochi member, 2
7 Standing portion (slide plate), 28.65 Force mechanism, 32--Head unit, 33--Head seek means, 34--Head seek motor, 4
2------Ejector spring, 68------
--Hend Carriage, 69.70---Head, 7
1-----11 plate spring, 72---1--arm, 8
1--Top guide surface (cassette guide), 82--Side surface (cassette/two-piece guide), 8:3--One lower guide surface (cassette guide), 84--One opening (cassette guide) Guide), 85 leaf spring, δ--- Vertical play between the cassette guide and the disc cassette. 4th '54

Claims (1)

[Claims] (1) A guide function for inserting, ejecting, loading, and unloading a disk cassette in a disk device that performs recording or playback on a disk by rotating the disk as a recording medium and moving the head in a predetermined direction. A cassette guide having a disc cassette is installed so as to be movable up and down depending on whether the disc cassette is installed or not,
A disk device characterized in that a disk cassette in the cassette guide is brought into contact with an upper side of the cassette guide by providing an elastic member or an elastic section on the lower side of the cassette guide.