JP3399920B2 - Disk drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] The present invention relates to a disk drive.
In particular, the
The present invention relates to the configuration of the holding means of the cutter. [0002] 2. Description of the Related Art In recent years, recording density has become higher than that of other information recording media.
All are very large, so optical disks (write-once and
(Including both rewritable) as file memory
Image file systems are attracting attention, and suitable data
Disc drive and disk cartridge are variously studied
Have been. FIG. 53 shows a disk drive of this type.
FIG. 3 is a simplified perspective view showing an example of a disk cart.
The ridge is formed into a frame shape that can be fitted inside, and the bottom is
Cartridge with opening 2 for inserting bull 1
Side of the cartridge holder 3 near the disk cartridge stop end
One end of the opening / closing arms 4 and 5 is attached to the part so that it can rotate.
And pins 4a, 5a attached to their tips.
Is inserted into the disc cartridge in the cartridge holder 3.
It is arranged on the route. In addition, the opening and closing arms 4 and 5
The disk cartridge 6 is always set by a spring member (not shown).
Is urged in the direction of discharging the cartridge from the cartridge holder 3.
And the insertion force of the disk cartridge 6
The disc car is turned inward (in the direction of arrows A and B).
When the cartridge 6 is discharged from the cartridge holder 3,
Automatically return to the original position by the elastic force of the spring member
Is configured. On the other hand, it is applied to this disk drive.
54 and 55 are provided in the disk cartridge 6.
As shown in the figure, a double-sided recording type optical disk 7 is rotated inside.
From the substantially central portion of the half 8 that is stored to the front edge 9
Window hole 10 for head and turntable insertion
Along the front edge 9, the window 1
0 is slidably mounted on a shutter 11 capable of opening and closing
You. The double-sided recording type optical disk 7 is a piece of transparent substrate.
Two optical discs each having a recording layer formed on the
It is formed by joining the recording layer inside. [0005] At the front edge 9 of the disk cartridge 6
Is a sliding part for sliding the pin 4a or 5a.
12 is recessed, and the shutter 11 is fully opened.
When the pin 4a or 5a abuts,
A recess 13 following the sliding portion 12 is provided. Also,
The side of the disk cartridge 6 is
Notch 14 for positioning with respect to cartridge holder 3
The rear edge 1 of the upper half 8a and the lower half 8b
At the corner closer to 5, the center line CC of the window hole 10 is paired.
Erase erasure prevention mechanisms 16 and 17 are provided at the designated positions.
You. The disk cartridge 6 is not used.
Time, that is, when the
Previously, as shown in FIG.
Of the foreign matter from the window hole 10
Intrusion is prevented, and the optical disk 7 is protected. The disk cartridge 6 is inserted into the cart
When inserted into the ridge holder 3, first, as shown in FIG.
Thus, one of the pins 4a slides on the end face of the shutter 11.
The space 12 is inserted into the space 18 formed by the space 12. From this state, the disc cartridge is further moved.
When the arm 6 is pushed in, one arm 4 is pushed by the pressing force.
It rotates in the direction of arrow A, and the pin 4a
And presses the shutter 11 in the opening direction D. At this time, the other pin 5a is connected to the shutter 11.
Not engaged, rides on the front surface of the shutter 11 and
In the direction of arrow B. The disk cartridge 6 is inserted into the cartridge
When it is inserted to the predetermined position of the screw 3, as shown in FIG.
Then, the shutter 11 moves in the direction of arrow D by a predetermined amount,
10 is released. At this time, the pin 4a is
It falls into the recess 13 formed in the front edge 9 of the cartridge 6.
Then, the shutter 11 is fixed at the position. At the same time, the cartridge holder 3
The ejected sensor (not shown)
Detects that cartridge 6 has been inserted, and
The holder 3 is lowered and the light
The disk 7 is clamped. This allows the disc cart
The loading of the ridge 6 is completed. [0012] It should be noted that a disk camera which has been conventionally studied is
FIGS. 56 (a) and (b) show other examples of cartridges.
As shown in FIG.
Formed, and the pin 5a or 5b is engaged with the cutout portion 19.
To open and close the shutter 11
There is also [0013] As described above, as described above,
The disk drive of the type shown in FIG.
When the disk cartridge 6 is inserted, the cartridge cartridge
The disc cartridge is provided by the arm 4 provided on the
The shutter 11 provided on the cartridge 6 is opened, and the disc cartridge is opened.
Arm 4 after loading cartridge 6 is complete
The shutter 11 is kept open by the
The arm 4 and the shutter 11 are engaged by an external force such as vibration.
When the engagement is released, the shutter is moved by the elastic force of the spring member.
Automatically moves in the closing direction.
The head unit provided in the disk drive
There is a problem that it is easy. The present invention eliminates the deficiencies of the prior art.
The challenge is to use disks with excellent earthquake resistance.
A drive device is provided. [0015] The present invention solves the above-mentioned problems.
To achieveClosedSlide in one direction from the position
A shutter is provided to open the window opened in the case.
Cart that holds detached disk cartridges detachably
A ridge holder,TheRotatable to cartridge holder
Attached, and the disc is placed in the cartridge holder.
When a cartridge is inserted, the insertion force
A device provided with an opening / closing arm for moving the shutter in the opening direction.
In the disk drive,Data of the cartridge holder
At the stop end of the disk cartridge,
Insert the disk cartridge until the insertion
And the shutter is opened by the opening / closing arm.
The shutter and the opening / closing arm
When the shutter is disengaged, it is engaged with the end on the insertion side of the shutter.
TogetherHold the shutter in the predetermined open position
Holding memberEquippedIt was configured to be. [0016] Thus, it is opened by the opening and closing arm.
A shutter holding member for holding a shutter at a predetermined open position
Is installed in the cartridge holder.
Even if the engagement with the arm is released
And the shutter holding member are engaged with each other in the closing direction of the shutter.
Movement is prevented, so the shutter and head device are destroyed
Can be prevented, and the quake resistance of the disk drive can be improved.
Can be [0017] DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk drive according to the present invention
Before explaining, it is attached to this and records information and
FIG. 22 shows an example of a disk cartridge to be reproduced.
This will be described with reference to FIGS. In these figures,
With the members or parts shown in FIGS.
Corresponding members or parts are marked with the same reference
I have. As shown in FIG. 22, this disk car
The cartridge 6 is mainly made of a hard plastic cartridge.
Cartridge case 21 and the cartridge case 21
Rollable double-sided recording optical disk 7 and car
Slidably attached to the front edge 9 of the cartridge case 21
And the slider 22 fixed to the slider 22 and closed.
Slide in one direction from the chain position to the cartridge case 21
A shutter 11 for opening and closing the opened window 10;
And a shutter holding plate 18 for holding the front end of the shutter 11
Have been. The cartridge case 21 is shown in FIG.
As shown, it consists of an upper half 8a and a lower half 8b,
These two halves 8a and 8b are connected to a plurality of screws (not shown).
The optical disk 7 and other
It constitutes a space for accommodating component parts. In the lower half 8b, as shown in FIG.
From a substantially central portion corresponding to the rotation center P of the optical disc 7
To the front edge 9 (the side on the insertion side into the disk drive)
A long hole-shaped window hole 10 is opened, and right and left near the rear edge 9a.
Openings 16a and 17a for an erroneous erasure prevention mechanism are provided on both sides.
It is opened symmetrically. The width W of the window hole 10 is
A turntable and an optical disk for rotating the disk 7
Head for recording / reproducing information to / from
Formed in width. Outer peripheral edge of the lower half 8b excluding the front edge 9
Has a constant height as shown in FIGS. 23 and 24.
Are provided upright. Also, the optical disk 7
On the circumference centered on the rotation center P of the joint wall 2
The partition 24 having the same height as that of the optical disk 3 is erected in a ring shape, and
7 of the storage space 24a. Further, the window hole
On the circumference around the rotation center P around 10
The disc receiving portion is lower than the joining wall 23 and the partition wall 24.
A bridge 10a is erected in a ring shape. The front edge 9 of the lower half 8b is
Guide rail 25 slightly lower than joint walls 23 and 24
It is formed in a linear shape and has a shutter
A step 25a for stopping the cutter is formed. Also this
Inside the guide rail 25, the joining walls 23 and 24 are provided.
A joint wall 26 at the same height stands parallel to the guide rail 25
Have been. Opposed to the window hole 10 at the front edge of the lower half 8b
As shown in FIG. 25, the lower half 8
b, the reinforcing portion 27 recessed from the surface of the guide rail
24 and are integrally formed in the same plane as the tip end.
You. Furthermore, the shutter 1 on the outer surface of the lower half 8b
As shown in Fig. 25, the part where
Recess for holding the surface of the bottom 11 in the surface of the lower half 8b.
The part 28 is recessed. On the other hand, each member of the upper half 8a is
Substantially the same as that of FIG.
Formed into a shape. Therefore, these two halves 8a, 8
b, as shown in FIGS. 26 (a) and (b)
The slider insertion hole 29 is aligned with the joint of the front edge 9.
It is formed in a shape. Next, the structure of the shutter 11 will be described.
You. The shutter 11 is shown in FIGS. 27 and 28.
Bend a thin plate of stainless steel into a U-shape as shown in
To cover the entirety of the window hole 10 at the same time.
Upper piece 11a and lower piece 11b having a length that allows
Also, the thickness of the shutter setting portion of the cartridge case 8
The front piece 11c having a width substantially equal to the height S is integrally formed.
And a front piece 11c of the upper piece 11a and the lower piece 11b.
The locking claw 30 is formed to bend inward in the portion adjacent to
Have been. The slider 22 is, as shown in FIG.
Connect the wide front part 31 and the narrow rear part 32 and these
And a connecting portion 33.
The guide rail 25 is inserted into the concave grooves 34a and 34b formed.
The interior can be decorated. The front part 32 is the third
As shown in FIG. 0 and FIG. 31, the width W of the
The length l and the thickness T1 of the reinforcing portion 27
A head formed with the same or smaller width T2
And a width substantially equal to the inner width of the shutter 11.
Shutter mounting portion 36 formed on the
A tapered portion 37 formed at the tip of the portion 36;
Side opposite to the shutter mounting portion 36 through the shutter insertion portion 35
And a pin engaging portion 37a formed at the bottom. Pin engaging part
37a is formed to have substantially the same width as the shutter mounting portion 36.
You. The front, upper, and lower sides of the shutter mounting portion 36
On the surface, a concave portion 38 capable of housing the shutter 11 is formed.
ing. Also, the upper and lower surfaces of the shutter mounting portion 36
In the central part, a locking claw 30 formed by bending the shutter 11 is provided.
A recess 39 is formed to facilitate engagement. Sa
Further, the recess 3 for engaging the locking claw of the shutter mounting portion 36 is formed.
9 has a recess 40 for inserting the locking claw 30 therein.
Are formed. The rear surface portion 32 holds the slider 22 from the rear surface side.
When viewed, it has the same width over its entire length,
At the end on the taper portion 37 side, as shown in FIG.
An engagement portion 32b is protruded. The slider 22 is made of, for example, nylon.
Or synthetic resin with excellent lubricity like polyacetal.
Thus, they are integrally formed. The shutter 11 is provided with the shutter mounting portion.
The engagement of the locking claw 30 with the locking
Attached to The slider 22 has a tapered portion 37.
To the moving side of the shutter 11 when the shutter 11 is opened.
a, 34b over the guide rail 25.
And is slidably attached to the cartridge case 21. At this time, the upper piece 11a and the lower
The piece 11b is placed on both upper and lower sides of the cartridge case 21.
Each is polymerized and opened in the upper half 8a and the lower half 8b.
Each of the window holes 10 is closed. The tip of the shutter 11
Slender holding plate 18 adhered to cartridge case 21
Is brought into close contact with the cartridge case 21. The shutter stop step 25a
Is the shutter 1 when the end face of the slider 22 is contacted.
1 is positioned so that the side portion does not contact the end face of the concave portion 28.
It is formed with a lock. Thereby, the shutter 11 and
Reduces dust generation due to collision with cartridge case 21
be able to. Hereinafter, a third embodiment of the disk drive according to the present invention will be described.
An example will be described with reference to FIGS. 1 to 21. FIG. 1 is a perspective view near the cartridge holder.
FIG. 2 is a plan view of the cartridge holder, and FIG.
From the direction of inserting the disc cartridge into the cartridge holder
Fig. 4 is the side view of the cartridge holder.
FIG. In these figures, the fifth
The same reference numerals are shown in the parts corresponding to FIG.
You. As shown in these figures, the disk of this embodiment is
In the disk drive, two open / close arms 4 and 5 are
Attached to the top surface of the top plate 3b of the cartridge holder 3.
I have. Also, a disc cartridge is provided on the top plate 3b.
Disk inserted from stop end 3a to stop end 3a
Over the portion of the cartridge facing the window 10,
A hole-shaped head insertion hole 3d is provided. Each of the opening and closing arms 4 and 5 is shown in FIG.
As shown in the drawing, the center line XX of the head insertion hole 3d is
And are combined so as to intersect symmetrically, and the support shaft 4b,
5b is rotatably attached to the insertion opening side of the cartridge holder 3.
And the tip of the cartridge holder 3
It is arranged on the disk cartridge stop end 3a side. Follow
And the first support shaft 4b is set to the left of the center line XX.
The opening / closing arm 4 has a distal end disposed on the right side of the center line XX.
And the second support shaft 5b is set to the right of the center line XX.
The opening / closing arm 5 has a distal end disposed on the left side of the center line XX.
It is. Each of the opening / closing arms 4 and 5 has one point in FIG.
As shown by the dashed line, when driven to the innermost position
The disk car inserted in the cartridge holder 3
Closes the window 10 of the cartridge and the head insertion hole 3d.
The shape, arrangement, rotation range, etc. are set to prevent
Is done. In addition, these two opening / closing arms 4 and 5 operate.
While moving from the beginning to the end of the range,
Project outward from the range of the top plate 3b of the cartridge holder 3.
The shape, arrangement, rotation range, etc. are set to prevent
It is. Furthermore, these two open / close arms 4 and 5 operate.
3 and FIG.
As shown in FIG. 4, at the set position with respect to the support shafts 4b and 5b,
It is configured so that it is high and low and crosses three-dimensionally.
You. At the tip of each of the opening and closing arms 4 and 5, a pin
Pins 4a, 5a are attached, and these pins 4a, 5a
5a is opened on the top plate 3b as shown in FIG. 1 and FIG.
The cartridge passes through the arc-shaped through holes 41a and 41b provided.
Outside the shutter closed position in the cartridge holder 3.
Have been. Of course, the through holes 41a and 41b are
Are set up on an arc centered on the support shafts 4b and 5b of the
It is. The open / close arms 4 and 5 include a return spring 42.
a, 42b are always urged outward. this
When the disc cartridge 6 is not inserted,
4a is a pin engagement portion 37 of the slider 22 in the closed position.
It is arranged so that it may contact the outer surface of a. Also, the other
The pin 5a turns the disk cartridge 6 upside down and
When installed in the cartridge holder 3, the switch in the closed position
To be brought into contact with the outer surface of the pin engaging portion 37a of the rider 22.
Placed in The initial setting angles of the open / close arms 4 and 5,
The arm 4 when the disc cartridge 6 is not inserted
(5) Line connecting the support shaft 4b (5b) and the pin 4a (5a)
EE is the insertion direction FF of the disk cartridge 6.
Is the loading force of the disc cartridge 1.
And the angle θ is reduced,
The swinging power is increased and the usability is deteriorated. As schematically shown in FIG.
The loading force of the cartridge 6 is set to F1,
The closing force is Fs, the restoring force of the opening / closing arm 4 (5) is Fp, and the line segment E
The angle between -E and line segment FF is θ, pin 4a (5a)
Is sliding along the front edge of the disc cartridge 6
The load force F1 is given by
It is expressed by an equation. [0044] F1 = {tanθ / (tanθ−μ)} × {(Fs / tanθ) + (Fp / sinθ)} For example, in the case of a small optical disk drive,
Shutter 11 to ensure that the
The closing force Fs must be 1.5 N (Newton) or more.
It is important. In addition, the opening / closing arm 4 (5) reliably returns to the original position.
In order to achieve this, the restoring force Fp of the opening / closing arm 4 (5) must be reduced.
0.2N or more. Also, the pin 4a (5a) and the disc
The friction coefficient μ with the cartridge 6 is about 0.2
is there. FIG. 6 shows the light beam obtained from the above equation.
Between the angle θ and the loading force F1 in the disc drive.
Show the relationship. Experience shows that loading force F1 is over 5N
If this happens, the usability will be poor and it will not be practical.
According to the graph, the arm angle θ is in the range of 29 degrees or more.
Must be used, and for that purpose when not in use
The setting angle of the arm must be 65 degrees or more.
I understand. Disk Cartridge of Cartridge Holder 3
As shown in FIG. 1 and FIG.
The disk cartridge 6 is inserted to a predetermined position.
Whether the shutter 11 has been fully opened or not.
Sensor 51 for detection and open arm 4 or 5
Therefore, the opened shutter 11 is held at a predetermined open position.
Shutter holding member 52 is set. The sensor 51 is mounted on the cartridge holder 3
A switch device for a drive source (not shown) that moves up and down
And the disk cartridge 6 is inserted to the specified position.
And when the shutter 11 is completely opened,
Activate the drive source and turn the cartridge holder 3
1 is lowered. FIG. 7 shows a first example of the shutter holding member 52.
FIG. 7 is a perspective view showing a side piece having an upper piece 52a and a lower piece 52b.
And a connecting piece 52c for connecting them, a substantially U-shape
The upper piece 52a and the lower piece 52b are
The head insertion portion 35 of the slider 22 is provided at the front end of the inner surface.
Chamfer 53a for easy insertion
You. The total height H of the shutter holding member 52 is
The thickness of the case 21 is equal to or smaller than the thickness S.
And the distance w between the inner surfaces of the upper piece 52a and the lower piece 52b.
Is slightly larger than the thickness of the head insertion portion 35 of the slider 22.
Largely formed. The shutter holding member 52 of this example is
When the shutter 11 is released to the fully open position, the slider 2
2 between the head insertion portion 35 and the shutter mounting portion 36.
It is set at a position where it can be engaged with the end face formed. FIG. 8 shows a second example of the shutter holding member 52.
FIG. 4 is a perspective view showing a state in which engagement with a slider 22 is facilitated.
Therefore, the side portions of the upper piece 52a and the lower piece 52b
A take 53b is provided. For others, the first example
This is the same as the shutter holding member. FIG. 9 shows a third example of the shutter holding member 52.
FIG. 4 is a perspective view showing a state in which engagement with a slider 22 is facilitated.
Therefore, the upper piece 52a and the lower piece 52b
A take 53c is provided. For others, the first example
This is the same as the shutter holding member. FIG. 10 shows a fourth example of the shutter holding member 52.
FIG. 2 is a perspective view showing a horizontal piece for simplifying the configuration.
It is formed in an L-shape consisting of 55 and a standing piece 56. So
Others are the same as those of the shutter holding member of the first example.
You. FIG. 11 shows a fifth example of the shutter holding member 52.
FIG. 4 is a perspective view showing a state in which engagement with a slider 22 is easily performed.
For this purpose, chamfers 53d are provided on both sides of the tip of the horizontal piece 55.
Have been. For the rest, the shutter holding of the fourth example
Same as the member. FIG. 12 shows a sixth example of the shutter holding member 52.
FIG.
Attachment portion 57 and pin vertically projecting from attachment portion 57
And a locking portion 58 in the shape of a circle. This example shutter
The holding member 52 is, as shown in FIG.
Is released to the fully open position, the head of the slider 22
End formed between insertion portion 35 and shutter mounting portion 36
Can be set to engage the surface,
As shown in FIG. 4, a through hole 5 is formed in the front piece 11c of the shutter 11.
9a and the shutter mounting portion of the slider 22
36 at a position corresponding to the through hole 59a.
The locking portion 58 is inserted into the recess 59b.
It can also be done. Fig. 15 shows the shutter
FIG. 14 is a perspective view showing a seventh example of the holding member 52, wherein the cart
A fixing portion 61 fixed to the ridge holder 3;
Engagement pin mounted to project or insert into
62, and between the fixing portion 61 and the engagement pin 62.
The engagement pin 62 always protrudes from the fixed portion 61
And a spring member 63 biased in the direction. FIGS. 16 and 17 show the fixing portion 61.
As shown in the figure, slide the engagement pin 62 at the center of one end.
A hole 64 for storing the hole 64 is provided.
The circumferential surface communicates with the opening of the hole 64 and is in the axial direction of the hole 64.
And a hole extending from the end of the introduction groove 65a.
64 of the connection groove 65b extending in the circumferential direction;
A guide groove 65c extending in the axial direction of the hole 64 from the terminal end is formed.
Is formed. The other end of the fixing portion 61 has a hub
The hub 66 is provided with a screw insertion hole.
67 have been established. On the other hand, the eighteenth
As shown in the figure, each of the grooves 65a, 65b, 65c
A projection 68 is provided so as to be able to pass through. The shutter holding member 52 includes a fixing portion 61
After storing the spring member 63 in the hole 64 opened in
The projection 68 protruding from the mating pin 62 is inserted into the introduction groove 65a,
By inserting the connecting groove 65b and the guide groove 65c in this order,
And are assembled together. FIG. 19 shows an eighth example of the shutter holding member 52.
FIG. 4 is a perspective view showing a state in which engagement with a slider 22 is easily performed.
For this purpose, a rolling member 69a is attached to the tip of the engagement pin 62.
Is set to protrude to the outside. So
Others are the same as those of the shutter holding member of the seventh example.
You. FIG. 20 is a ninth example of the shutter holding member 52.
FIG. 9 is a perspective view showing a fixing portion 61 and a pair of fixing portions 61;
An engagement arm 70 rotatably attached to the
Stretched between the fixing portion 61 and the engagement arm 70,
Arm 70 always faces the insertion direction of the disc cartridge 6.
And a spring member 63a for urging in the opposite direction.
I have. FIG. 21 is a sectional view of the shutter holding member 52 of FIG.
FIG. 4 is a perspective view showing an example, in which engagement with a slider 22 is facilitated.
The rolling member 69b is attached to the distal end of the engagement arm 70.
Is set so that part of it projects outside.
You. Others are the same as the shutter holding member of the ninth example.
It is like. The shutter holding members according to the seventh to tenth examples.
52, when the shutter 11 is opened to the fully open position,
The head insertion portion 35 of the slider 22 and the shutter mounting portion 36
To engage with the end face formed between
And a through hole 59 is formed in the front piece 11c of the shutter 11.
a and the shutter mounting portion 3 of the slider 22
6 is recessed at a position corresponding to the through hole 59a.
In the recess 59b, the engaging pin 62 or
It is also possible to insert the engagement arm 70 (the
13 and 14). Hereinafter, the disk drive configured as described above will be described.
The operation of the moving device will be described with reference to FIGS. 32 and 33.
You. Before the disk cartridge is inserted
In this case, as shown in FIG.
Is separated from the turntable 1, and in FIG.
As shown, the two pins 4a, 5a
Are spaced apart from each other. In the cartridge holder 3, a disc cart is
When the ridge 6 is inserted, first, as shown in FIG.
Engagement of the slider 22 with the other pin 4a in the closed position
Abuts against the outer surface of the portion 37a and the other pin 5a
Touches the front edge of the disk cartridge on the shutter release side.
Touched. Inserting a disk cartridge further
And the pressing force causes the arms 4 and 5 to inward each other.
The shutter 1 is driven by the driving force of one arm 4.
1 is driven in the opening direction. The shutter 11 is driven in the opening direction
In the process, the other pin 5a is associated with the slider 22.
However, since the taper portion 37 is formed on the slider 22,
The pin 5a does not collide with the slider 22 and
It rides on the front piece 11c of the cutter 11. When the disk cartridge 6 is
When inserted to the innermost part 3a of the screw 3, as shown in FIG.
As shown in FIG.
2, the shutter holding member 52 is engaged. Also this
At the same time, the disk cartridge is detected by the sensor 51.
6 is inserted to the predetermined position, and the shutter 11 is completely
Opening is detected and a drive source (not shown) is driven.
The cartridge holder 3 to the turntable 1 side.
It is. Thus, the optical disk 7 is turned
1 and a recording / reproducing operation is enabled. The disk drive of the above embodiment has two
Opening arms 4 and 5 on top plate 3c of cartridge holder 3
Because it is attached, special setting space for open / close arms 4 and 5
There is no need to provide them separately.
Compared to the case where it is installed on the side of the cartridge holder 3,
The plane size of the disk drive can be reduced.
You. Also, the two open / close arms 4 and 5 are crossed,
Turn the base end toward the insertion port of the cartridge holder 3.
Movably mounted, and the tip end of the cartridge holder 3
The opening and closing arms 4 and 5
The fixed angle can be increased, and thus the
The shutter 11 can be driven to improve the usability.
be able to. Further, provided at the distal ends of the opening and closing arms 4 and 5.
The shutter driving pins 4a and 5a
It is arranged outside the shutter closing position in the holder 3
Then, the pin is connected to the pin engaging portion 3 formed on the slider 22.
7 can be engaged with each other with a sufficient engagement margin.
During the shutter opening / closing operation.
Inconvenience such as disengagement of the two is unlikely to occur. In addition, the innermost part of the cartridge holder 3
Set the shutter holding member 52 and open it to the fully open position.
Shutter 11 (slider 22) is engaged.
Therefore, the pin 4a or 5a
When the engagement with the slider 22 is released, the shutter 11
Does not close, preventing damage to the optical head, etc.
Can be prevented. Also, the cartridge holder 3 has
The head insertion hole 3d and the opening 2 were opened respectively.
Then, from the upper and lower surfaces of the cartridge holder 3,
An optical head and an optical disk 7 accommodated in the ridge 6
And access to external magnetic fields
Used as a disk drive device. Hereinafter, the second embodiment of the disk drive according to the present invention will be described.
Two examples will be described with reference to FIGS. 34 to 40. FIG. 34 shows a disk drive according to the second embodiment.
It is a perspective view of an apparatus, 81 is a base, 82 is an outer wall,
82a is a bag portion, 83 is a holder driving member, and 83a is a cut.
84, a guide roller, 86 a tension spring, 87 a center
The parts corresponding to those in FIG.
The same reference numerals are given. The base 81 has a front
Components such as turntable 1 and optical head are provided
However, to prevent the figure from becoming complicated, the illustration is omitted.
Abbreviated. Referring to FIG.
Drive member 83 is in the direction of arrow M (disc cartridge 6
In the direction of the arrow M ') and the opposite direction of the arrow M'.
Mounted above the holder driving member 83.
The cartridge holder 3 is positioned. This car
The cartridge holder 3 is moved upward and downward as indicated by arrows N and N '.
It is movable, and the arrow is shown by a tension spring (not shown).
This cartridge holder is urged in the N 'direction.
The guide roller 84 provided on the side surface of the holder 3 is a holder driving unit.
Because it is on the upper surface of the side wall of the material 83, the cartridge
The movement of the holder 3 in the direction of the arrow N 'is restricted.
A cartridge is provided on the upper surface of the side wall of the holder driving member 83.
The disk cartridge insertion port side of the holder 3 is inclined
A notch 83a is provided, and the guide roller 84
When entering the cartridge 83a, a cartridge spring is
The rudder 3 moves (that is, descends) in the direction of the arrow N '.
Also, a guide provided on the side surface of the cartridge holder 3
The roller 84 has a hollow inside the outer wall 82 and arrows N, N '.
Into the bag portion 82a extending in the direction
The cartridge holder 3 moves in the directions of arrows N and N '.
Can move in the directions of arrows M and M '
Can not. On the upper surface of the cartridge holder 3, two
The support shafts 4b and 5b are close to each other and in the directions of arrows M and M '.
Are provided side by side in a direction orthogonal to
The first opening / closing arm 4 has a second opening / closing arm 5
Are rotatably mounted respectively. First opening / closing arm
4 rotates the support shaft 5b toward the disk cartridge insertion port.
While extending the cartridge holder 3
The second opening / closing arm 5 also rotates around the support shaft 4b in the same manner.
While extending into the cartridge holder 3
You. For this purpose, these opening and closing arms 4 and 5 are
b, 5b.
Not to cross. Therefore, the shafts 4b and 5b
The mounting heights of the open / close arms 4 and 5 are different.
Higher opening and closing arm so that the tip of
4 is provided with a downward step 8. These open / close arms
Protruding downward at the same length at the tip of the same height of 4 and 5
Pins 4a and 5a are provided so as to perform the operation. The first opening / closing arm 4 is pulled
Energized clockwise around the support shaft 4b by a spring
Similarly, the second opening / closing arm 5 is similarly connected to the support shaft 5b.
It is biased counterclockwise as the center. For this reason
And the disk cartridge 6 in the cartridge holder 3
When not inserted, the opening / closing arms 4 and 5 are pins 4a,
5a are sufficiently separated. Cartridge holder 3
When the disc cartridge 6 is pushed into the
The pins 4 of the open / close arms 4 and 5 are
a, 5a, but the disk cartridge 6
As it is pushed in, the first opening / closing arm 4 moves the support shaft 4b
The second opening / closing arm 5 pivots counterclockwise around the
It rotates clockwise about the axis 5b, thereby
Disk cartridge 6 with either A side or B side up
Depending on whether the pin 4a or 5a
The shutter of the ridge 6 is opened. In this way, the opening and closing arms 4 and 5 are
Insert the disk cartridge 6 with either side A or B
Open shutter by pin 4a or 5a
be able to. When the disk cartridge 6 is in the cartridge
When the holder driving member 8 is not inserted into the
3 is the most moved state in the arrow M direction,
The guide roller 84 of the holder 3 is
It is located off the side wall cutout 83a. For this reason
Then, the cartridge holder 3 is lifted in the arrow N direction.
The disk cartridge 6 is in this state.
It can be inserted into the cartridge holder 3. The disk cartridge 6 is inserted into the cartridge
The shutter opening / closing arms 4, 5
The shutter is opened by the
6 is pushed into the innermost part of the cartridge holder 3
And a sensor (not shown)
And the holder driving member 83 is pulled in the direction of arrow M '.
Move. With the movement of the holder driving member 83,
When the guide roller 84 enters the cut 83a,
The cartridge holder 3 descends in the direction of arrow N '
Hub section of optical disk 7 stored in cartridge 6
Is fixedly mounted on the turntable provided below.
Is placed. At this time, the lock mechanism (not shown)
The disk cartridge 6 is locked. As described above, the hub of the optical disk 7 is
Cart to a position sufficient to be fixedly placed on the table
The fact that the ridge holder 3 has been dropped is detected by a sensor (not shown).
The motor is stopped by this detection output.
You. Disk Cartridge of Cartridge Holder 3
A sensor 87 is provided on the base 81 on the side of the cartridge insertion port.
ing. This sensor 87
Activates when the disk cartridge 6 moves down.
The optical disk 7 is prohibited from recording
Whether the optical disk 7 is in the recording mode or not.
Or not). The sensor 87
Detected that the cartridge 6 has been lowered to a predetermined position.
Then, the drive motor rotates the turntable,
The optical disk 7 is rotated. Also, the sensor 87 is
When it is detected that the disc 7 is not in the recordable mode,
The recording on the optical disk 7 is prohibited. When the disk cartridge 6 is ejected
Means that the motor rotates with the user's eject operation,
The holder driving member 83 moves in the direction of arrow M. This and
The guide roller 84 on the side of the cartridge holder 3
Is disengaged from the cutout 83a in the side wall of the holder driving member 83.
And the cartridge holder 3 rises in the direction of arrow N.
You. At the same time, the disk cartridge 6
1, by the open / close arms 4 and 5 urged in the Q2 direction
Can be pushed out of the cartridge holder 3
It is pushed out so that it can come. Disk cartridge 6
The shutter is biased in the closing direction, and the opening / closing arm
The disk cartridge 6 is pushed out by 4, 5
At the same time, the shutter closes automatically. FIG. 35
FIG. 3A is an external view of the disc cartridge 6, and FIG.
The side B with the shutter open is shown in FIG.
A respectively shows the side A in a state where the data is closed. Referring to FIG.
Window holes 10 are provided on both sides so as to overlap each other.
(The B surface shown in FIG. 35 (b) is hidden by the shutter 11.
Is). Also, the tip surface of the disc cartridge 6
Is provided with a slider 22 made of resin so as to be slidable there.
The U-shaped shutter 11 and the slider 22 are
It is attached so as to sandwich the body of the cartridge 6
ing. The shutter 11 has a shape and size covering the window hole 10.
34, usually by a spring member (not shown).
As shown in (b), the window 10 is closed. In such a disk cartridge 7,
At the corners of the sides A and B opposite to the shutter 11 side, respectively
Erroneous erasure prevention mechanisms 16 and 17 are provided. These mistakes
The erasure prevention mechanisms 16 and 17 depend on the movement direction of the shutter 11.
Are related to the center line of the disk cartridge 6 in the orthogonal direction.
It is positioned symmetrically. The erroneous erasure prevention mechanisms 16 and 17 are respectively
Openings 16a and 17a penetrating between the two surfaces, and these openings 1
Door members 16b, 17b slidable within 6a, 17a;
It is composed of These door members 16b, 17b
Operated by operating members 16c, 17c provided on the back side
Whether the openings 16a and 17a are fully closed or partially opened
The state is switched to the two states described above. The door members 16b, 17b have the openings 16a, 1
7b is completely closed, the side A of the optical disc 7 and the side B
The surface is recordable, and the door members 16b, 17b
a and 17a are partially opened, the optical disk 7
A and B are prohibited from recording. The other parts are the same as those shown in FIG.
It is formed similarly to the cartridge. Next, the disk cartridge of this embodiment
6 is loaded on the cartridge holder 3
The operation of the opening / closing arms 4 and 5 will be described in more detail.
You. FIG. 35 shows the structure of the opening / closing arms 4 and 5 and the structure thereof.
FIG. 3 is a view showing a rotating state at the time of loading,
Are given the same reference numerals. In the figure, reference numeral 6 (a) denotes a pin 4
a, 5a when the disk cartridge 6 starts contacting
6 (b) shows the loading of the cartridge holder 3
Shows the disk cartridge 6 when the recording is completed.
I have. The opening and closing arms 4 and 5 are disc cartridges.
The disk is shown as a whole in contact with the disk 6 (b).
In the state of contact with the cartridge 6 (a),
Only the ends are shown. The open / close arms 4 and 5 are respectively supported by support shafts 4b and 5b.
Bent part on the side attached to the side and straight part on the tip side
These bent portions are respectively supported by the support shafts 4b and 5
b to the disk cartridge slot (in the direction of arrow M ')
Is wrapping around. Therefore, the opening and closing arms 4 and 5 are
Avoid interference on the arrow M 'direction side with respect to the shafts 4b and 5b.
Will intersect, and because of this, the cartridge holder
The height from 3 is different. Here, the open / close arm 4
Shall be higher. Also, the first opening / closing arm 4
Is always centered on the support shaft 4b by the tension spring 42a.
Is biased in the counterclockwise direction.
5 is always centered on the support shaft 5b by the tension spring 42b.
Urged in a counterclockwise direction. The first opening / closing arm 4 is rotated clockwise.
Limit and limit of counterclockwise rotation of the second opening / closing arm 5
Is regulated by a stopper (not shown).
When the open / close arm 4 is within the movement limit,
The pin 4 of the open / close arm 4 is
a is the pin engaging portion 37a of the slider 22 and the disc cart.
A second opening / closing arm that abuts against the tip surface of the ridge 6 (a);
5 pin 5b on the opposite edge of the disc cartridge 6.
The rotation limit is set so as to abut. FIG. 37 (a) shows the disc cartridge 6
(A) shows a state where the pins 4a and 5a are in contact. As described above, the height of the open / close arms 4 and 5 is
Although different, by providing the step 88 on the opening / closing arm 4
Equalize the height of these tips before
Pins 4a and 5a are equal in length and
Over a sufficient range in the thickness direction of the disc cartridge 6 (a).
The length is specified so as to abut. This
Thus, the pins 4a and 5a are
(A) abuts over a sufficient thickness range, and pin 4a
Further, it sufficiently contacts the pin engaging portion 37a of the slider 22.
You. Turn the disk cartridge 6a (a) upside down
When inserted into the cartridge holder 3,
The pin 5a is the disk cartridge 6 (a) and the slider 2
Abuts on the second pin engaging portion 37a, but in the abutting state.
Is shown in FIG. 37 (a) as shown in FIG. 37 (b).
This is the same as the case of the pin 4a. Returning to FIG. 36, the disk cartridge
6 (a) is further inserted in the direction opposite to the arrow M '
And the pins 4a and 5a are connected to the disk cartridge 6 (a).
Thus, the opening / closing arm 4 is pushed counterclockwise around the support shaft 4b.
The opening / closing arm 5 rotates around the support shaft 5b.
Rotate in the counterclockwise direction. As a result, the slider 22
4a is pushed to move to the left, and the shutter 11 is opened.
The pin 5a moves on the slider 22 moving to the left.
Get on from the paper section 37. [0096] The disk cartridge for which loading is completed
In the case 6 (b), the shutter 11 is fully opened.
In state. At this time, the opening / closing arm 4 is displaced from the window hole 10.
Stopped at the position The opening / closing arm 5 includes a pin 5
The opening / closing arm 4 is equivalent to the amount that “b” rides on the slider 22.
It has also rotated a large distance, but it is still offset from the window hole
Has stopped. In this state, the open / close arms 4 and 5 are not
When a proper rotational force is applied, it may rotate further.
Can get. However, the support shaft 5b works with the stopper of the opening / closing arm 4.
The opening / closing arm 4 contacts the support shaft 5b and
And the support shaft 4b is also
Acts as a stopper, and the opening / closing arm 5 abuts on the support shaft 4b
As a result, no further rotation is possible. And opening and closing arm
The windows 4 and 5 are in contact with the support shafts 4b and 5b respectively.
The shape of the open / close arms 4, 5 so that they are offset from 0
The shape and the positions of the support shafts 4b and 5b are determined. As described above, the open / close arms 4 and 5 are normally
In the position shifted from the window hole 10
From the disc cartridge 6 through the window hole 10
No intrusion. The support shafts 4b and 5b and the tension spring 42
a and 42b are provided on the cartridge holder 3,
The rotation of the opening / closing arms 5a and 5b is also on the cartridge holder 3.
Therefore, the shutter opening and closing mechanism
The space is flat in the space of the cartridge holder 3.
Almost vertically, and slightly vertical
Only on the holder 3. Therefore, this
Larger disk drive due to shutter opening / closing mechanism
I will not. FIG. 38 shows the data in the cartridge holder 3.
The state immediately before the loading of the disk cartridge 6 is completed
It is a figure which shows, 91 is a sensor, 91a is A / B side discrimination.
Unit, 91b is a cartridge insertion / shutter open / close confirmation unit,
Reference numeral 92 denotes a lock member.
The same reference numerals are used. In the figure, the cartridge holder 3 (the
34), the shutter holding member 52 and the sensor 9
1 is provided. When loading is complete
In the disk cartridge 6, the shutter 11 is almost
It is almost fully opened and the disk cartridge 6
When pushed into the cartridge holder 3, the shutter 11
When the disk cartridge 6 is fully opened,
Abuts against the holding member 52, and
Lock member 92 is engaged with cutout 6a provided on the side surface of
Combine. At this time, the shutter holding member 52 is
The loading position of the cartridge 6 is defined.
At the same time, the shutter 11 is held in a fully opened state. Fully open
Even in the state, as described with reference to FIG.
4 and 5 pins 4a and 5a allow the shutter 11 to slide.
The pusher 22 is pushed, but the pin 4
When a and 5a come off the slider 22, the shutter 11
Automatically moves in the closing direction and damages the optical head
Would. The shutter holding member 52 prevents such an accident.
I try to stop. The sensor 91 is an A / B side discriminating section 91a cart.
Consists of ridge insertion / shutter open / close confirmation unit 91b
The A / B surface discriminating section 91a uses, for example, the A surface as the upper surface.
Insert disk cartridge 6 into cartridge holder 3
Then, the respective surfaces of the fully opened shutter 11 are connected.
It has a rod that is pushed by the connecting surface. B side as the top side
The disk cartridge 6 into the cartridge holder 3
The shutter 11 moves in the opposite direction when
Therefore, the rod of the A / B surface determination unit 91a is not pushed. this
As a result, the A surface and the B surface of the disc cartridge 6 are distinguished.
It is. Cartridge insertion / shutter open / close confirmation section 9
1b is a disk card together with the shutter holding member 52.
Check whether cartridge 6 has been loaded normally.
Check whether the data 6 is fully opened. Shutter 6 is fully open
The disc cartridge 6 is in the shutter holding section
Correctly positioned on the material 52,
The rod of the insertion / shutter open / close confirmation section 91b is pushed,
When the disk cartridge 6 is fully opened by the shutter 11,
It is confirmed that loading is correct, but the
Loading is performed without opening the data 11 fully
And the shutter at the end of the disk cartridge 6
The portion facing the member 52 is thicker by the thickness of the shutter 11.
And the shutter holding member 52
The tip member cannot be supported, and
The insertion amount of the cartridge 6 is insufficient. Because of this,
The rod of the cartridge insertion / shutter open / close confirmation unit 91b is
It is not pushed by the tip surface of the disk cartridge 6. This
When the cartridge 6 is loaded correctly
Indicates that the cartridge can be used regardless of whether the A or B surface is the upper surface.
The rod of the insertion / shutter open / close confirmation section 91b is a disc cover.
It is pushed by the tip end surface of the cartridge 7 '. This
The disc cartridge 6 is correctly loaded.
It is confirmed whether or not it was performed. Cartridge insertion / shutter release confirmation section 9
1b allows the disk cartridge 6 to be correctly loaded.
When it is confirmed that the
The loading function starts operating. A / B surface discriminating unit
The determination result of 91a is displayed on a display unit or the like. FIG. 39 shows that the disk cartridge 6 is
FIG. 4 shows a state supported by the
(A) is a plan view, and (b) is a section line X- in FIG.
Sectional view from X ', corresponding to the preceding drawing
Have the same reference numerals. Referring to FIG.
Is located between the window hole 10 and the front end surface of the case on both sides.
Is provided with a reinforcing portion 27 recessed from the case surface.
And both sides of the reinforcing portion 27 are the heads of the slider 22 respectively.
The upper and lower surfaces of the insertion portion 35 are formed to be the same or slightly thicker.
Have been. Therefore, the thickness of the reinforcing portion 27 and the slider 2
The thickness of the head insertion portion 35 of the disk cartridge 6
Thinner than the body case thickness. The width of the shutter holding member 52 is the width of the window hole 10.
The shutter holding member.
The distance between the upper piece 52a and the lower piece 52b of the disc 52 is a disc car.
The head insertion portion 35 of the slider 22 in the cartridge 6 and
And the thickness is set slightly larger than the thickness of the reinforcing portion 27.
ing. While the shutter 11 is open, the disc cart
When the ridge 6 is inserted into the cartridge holder 3,
The head insertion portion of the slider 22 and the reinforcing portion 27 are shutters.
The slider 22 is fitted into the holding member 52, and the connecting piece 52c is
Abut As a result, the disk cartridge 6
Is set. Like this disk cart
When the position of the ridge 6 is set, the shutter holding member 52
The upper piece 52a approaches the upper shutter plate of the shutter 11 and
The lower piece 52b is the lower shutter of the shutter 11
Facing close to the plate. As a result, the fully open chassis
From the pin engagement portion 37a of the slider 22 in the
Even if pins 4a and 4b of opening / closing arms 4 and 5 come off,
The upper part 52 of the shutter holding member 52
a, it abuts on the lower piece 52b and is held in a fully opened state
You. As shown in FIG. 40, during loading,
When the disc cartridge 6 is in the state of 6 (a) to 6 (b)
During the movement in the direction of arrow E to the state of
Opening in the direction of mark D, the upper right corner of this shutter 11
Moves in the direction of arrow D while moving in the direction of arrow E.
Is indicated by an arrow 94. This locus 94 is
Immediately before loading of the disk cartridge 6 is completed,
Of the reinforcing member 27 of the cartridge 6 and the shutter 11
At this time, these reinforcing portions
27 and the head insertion portion 35 of the slider 22
It is fitted into the holding member 52. In FIG. 40, reference numeral 95 denotes an opening / closing arm.
4 shows the movement locus of the camera pin 4a. The disk drive of the second embodiment is
When a through hole 3d is opened in the top plate 3c of the cartridge holder 3,
In both cases, insert the disk cartridge 6 into the cartridge holder
When the arm is inserted up to the insertion completed position of 3, the open / close arms 4, 5
Is any of the window holes 10 opened in the cartridge case.
The opening / closing arms 4,5 so that they do not overlap
Because the shape, arrangement, and rotation range of the
Like a disk drive, a disk car can be
A type of device in which an external magnetic field or the like is arranged on the upper surface side of the cartridge 6
Recording / reproducing operation was also affected by disk drive
I can't. Hereinafter, other examples of the disk drive device according to the present invention will be described.
Examples are listed. In each of the above examples, the open / close arms 4 and 5 are
Although set on the top surface of the top plate 3b of the cartridge holder 3,
As shown in FIG. 41, the shutter opening / closing arms 4 and 5 are
It can also be set on the inner surface of the cartridge holder 3. This
In the case of, the disk cartridge 6 is the cartridge holder
Arms 4 and 5 setting section to prevent rocking in 3
It is preferable to provide a guide plate 101 below. In each of the above examples, the opening / closing arm
No means to prevent vibration and deformation of 4 and 5
Although not shown, as shown in FIG.
An arm holding plate 102 is formed on the rudder 3 and the plate 102
The opening / closing arms 4 and 5 can be pressed. In each of the above examples, FIG.
As described above, the tips of the open / close arms 4 and 5 are
Set the same height for the holder 3
Pins 4a and 5a of the same length are provided at the tips of 4 and 5.
However, as shown in FIG.
Set different height for cartridge holder 3
Pins 4 of different lengths are provided at the ends of the open / close arms 4 and 5.
a, 5a can also be provided. In each of the above examples, the 37th
As shown in FIG.
Pins 4a and 5a extending to the back side of the
The pins 4a and 5a are brought into contact with the entire end face of the slider 22
However, as shown in FIG. 44, the pins 4a, 5a
And the pins 4a,
5a can also be made to abut. Each of the above embodiments
, The wide pin engaging portion 3
7a, the pins 4a, 5a
The engagement length between the slider and the slider 22 must be sufficiently large.
And the pins 4a and 5a are detached from the slider 22 during driving.
Is less likely to cause inconvenience. Further, the present invention provides for a disk drive device.
Related to the shutter holding member provided.
Configuration of the other parts of the disk drive and the disk cartridge
The configuration of the dice is limited to that described above.
There is no. For example, in each of the above examples, the slider 2
2 and the connecting portion 33 of the slider 22
Although formed over the entire length, as shown in FIG.
The rear surface 32 and the connection are provided only at both ends of the rider 22.
The part 33 can also be formed. Using the slider of this example
Then, as shown in FIG. 46, the
Cart with slider insertion holes 29 only on both sides
The ridge case 21 can be used. Further, as shown in FIG. 47, the slider 2
Stopper 103 and guide portion in the length direction from both ends of 2
104, and the tip of the stopper 103 is
Abuts the joining wall 23 formed on the cartridge case 21
Setting of the shutter 11 when the window 10 is closed
The position can be regulated. Further, as shown in FIG. 48, the slider 2
2 abuts the joining wall 23 of the cartridge case 21
Instead of projecting from the inner surface of the cartridge case 21
The window hole 10 is closed by contacting the
The setting position of the shutter 11 at the time
Can also. In each of the above examples, the shutter is held.
The shutter 11 is held in the fully open position by the member 52.
The cartridge case as shown in FIG.
The shutter 11 of the front edge 9 of the switch 21 moves to the fully open position.
When the pin 4a or 5a moves,
A mating recess 106 is provided, and a pin is fitted in the pin fitting recess 106.
By dropping the shutter 4a or 5a, the shutter 1
1 can be held in the fully open position. In each of the above examples, two open / close doors are provided.
50 and 5, but as shown in FIG.
The shutter can be opened and closed by the opening and closing arm. In each of the above examples, the shutter 11
A locking claw 30 is formed on the slider 22
Engages with the recess 40 formed in the shutter mounting portion 36
As a result, the shutter 11 and the slider 22 are integrated.
However, as shown in FIG.
c, a screw insertion hole 107 is opened.
Screw into the slider 22
The shutter and slider 22 can be integrated.
You. In each of the above examples, the cartridge
Insert the disk cartridge 6 to the innermost part of the holder 3
The shutter 11 provided on the disk cartridge 6
The two open / close arms 4 and 5
These are also the windows 1 opened in the disc cartridge 6.
The shape of the open / close arms 4, 5 so that they do not overlap with 0,
The arrangement, rotation range, etc. were set, but as shown in FIG.
In the fully opened state of the shutter, two open / close arms 4,
Part 5 overlaps part of window 10
Can also. The disk drive of this example is a disk cart.
Optics only on the side opposite to the open / close arm setting side via ridge 6
The head is set, for example for a write-once optical disc or
Is used as a disk drive for phase change optical disks
Can be In addition, two opening and closing arms 4, 5 and a window hole
The overlapping part with 10 is only at the insertion part of the turntable 1
If it is limited, both sides thereof via the disk cartridge 6
The optical head and the external magnetic field are set in
It can be used as a disk drive for a disk. Others, cartridge holder 3, arm
Figures 4 and 5 and the shapes and arrangement of pins 4a and 5a
The shape designation shown is not limited to the position,
Can be changed as appropriate without changing the gist of the invention
You. Also, the disk drive described in this specification is an optical disk drive.
Applied to magnetic disk drive as well as disk drive
can do. That is, a magnetic disk drive
When the present invention is applied, the magnetic day for the driving device is
The direction of the squirt cartridge is lost,
Information in the drive even if it is
Recording / playback can be performed using a magnetic disk cart.
Rigid insertion work is simplified, and incorrect insertion
It is possible to prevent head and magnetic disk damage beforehand.
it can. [0126] As described above, the disk of the present invention
The drive device operates the shutter opened by the opening / closing arm.
The shutter holding member that holds the shutter at the predetermined open position
Since the shutter and the arm are
The shutter and the shutter are locked even if the engagement of
To prevent the shutter from moving in the closing direction.
To prevent damage to the shutter and head device.
To improve the earthquake resistance of the disk drive
be able to.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a disk drive to which a disk cartridge according to the present invention is applied. FIG. 2 is a plan view of the disk drive device. FIG. 3 is a side view of the disk drive as viewed from a direction in which the disk cartridge is inserted. FIG. 4 is a side sectional view of the disk drive device. FIG. 5 is an explanatory diagram showing a force acting on an arm. FIG. 6 is a graph showing a relationship between an arm angle and a loading force. FIG. 7 is a perspective view showing a first example of a shutter holding member. FIG. 8 is a perspective view showing a second example of the shutter holding member. FIG. 9 is a perspective view showing a third example of the shutter holding member. FIG. 10 is a perspective view showing a fourth example of the shutter holding member. FIG. 11 is a perspective view showing a fifth example of the shutter holding member. FIG. 12 is a perspective view showing a sixth example of the shutter holding member. FIG. 13 is a main part plan view showing an engagement position of a shutter holding member according to a sixth example. FIG. 14 is a main part plan view showing an engagement position of a shutter holding member according to a sixth example. FIG. 15 is a perspective view showing a seventh example of the shutter holding member. FIG. 16 is a sectional view showing a fixing portion of a shutter holding member according to a seventh example. 17 is a front view of the fixing unit shown in FIG. FIG. 18 is a perspective view of an engagement pin applied to a shutter holding member according to a seventh example. FIG. 19 is a perspective view showing an eighth example of the shutter holding member. FIG. 20 is a perspective view showing a ninth example of the shutter holding member. FIG. 21 is a perspective view showing a tenth example of a shutter holding member. FIG. 22 is a perspective view of a disk cartridge according to the present invention. FIG. 23 is a plan view of a lower half. FIG. 24 is a sectional view of a lower half. FIG. 25 is a front view of the lower half. FIG. 26 is a front view of a cartridge case and a disk cartridge. FIG. 27 is a perspective view of a shutter. FIG. 28 is a side view of the shutter. FIG. 29 is a side view of the slider. FIG. 30 is a front view of the slider. FIG. 31 is a plan view of a slider. FIG. 32 is an explanatory diagram of the operation of the disk drive device according to the first example. FIG. 33 is an explanatory diagram of the operation of the disk drive device according to the first example. FIG. 34 is a perspective view of a disk drive device. FIG. 35 is a plan view of the disk cartridge. FIG. 36 is an explanatory diagram of the operation of the opening / closing arm. FIG. 37 is a front view showing an engaged state between a pin and a disk cartridge. FIG. 38 is a perspective view showing the engagement state between the disk cartridge and related components at the innermost part of the cartridge holder. FIG. 39 is an explanatory diagram showing an engagement state between a shutter and a shutter holding member. FIG. 40 is a diagram illustrating the operation of a pin and a shutter. FIG. 41 is a front view of the cartridge holder. FIG. 42 is a front view of the cartridge holder. FIG. 43 is a front view showing the engaged state of the disk cartridge and the pin. FIG. 44 is a front view showing the engaged state of the disc cartridge and the pin. FIG. 45 is a plan view of the slider. FIG. 46 is a front view of the cartridge case. FIG. 47 is a main part plan view showing an engaged state between the slider and the cartridge case. FIG. 48 is a main part plan view showing an engaged state between the slider and the cartridge case. FIG. 49 is a plan view showing an engaged state between the disk cartridge and the arm. FIG. 50 is a perspective view of a cartridge holder. FIG. 51 is a perspective view of a shutter. FIG. 52 is a cross-sectional view showing a positional relationship between an arm and a window hole, as viewed from a plane direction. FIG. 53 is a perspective view of a cartridge holder. FIG. 54 is an explanatory diagram of the operation of the opening / closing arm. FIG. 55 is an explanatory diagram of the operation of the opening / closing arm. FIG. 56 is a plan view showing another example of the disk cartridge. [Description of Signs] 3 Cartridge holder 3a Disk cartridge stop end 3b Top plate 4, 5 Opening / closing arm 6 Disk cartridge 7 Optical disk 9 Front edge 10 Window hole 11 Shutter 18 Shutter presser plate 21 Cartridge case 22 Slider 31 Front part 32 Rear part 33 connecting portion 34a, 34b concave groove 35 head insertion portion 36 shutter mounting portion 37 taper portion 37a pin engaging portions 38, 39, 40 concave portion 52 shutter holding member

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Hira 3-14760 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) G11B 17/04

Claims (1)

(57) [Claim 1] A cartridge holder for detachably holding a disk cartridge provided with a shutter which slides in one direction from a closed position to open a window hole opened in a cartridge case. If, rotatably mounted to the cartridge holder, when the disc cartridge into the cartridge holder is inserted in the disk drive device provided with a closing arm which moves the shutter in the opening direction by the insertion force, the cartridge Holder data
At the stop end of the disk cartridge,
Insert the disk cartridge until the insertion
And the shutter is opened by the opening / closing arm.
The shutter and the opening / closing arm
When the shutter is disengaged, it is engaged with the end on the insertion side of the shutter.
A disk drive device further comprising a shutter holding member for holding the shutter at a predetermined open position.