JPH10125032A - Disk storage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the strength of a device body from deteriorating and at the same time make thin and compact a device by placing a shutter that is operated with a cartridge body as a trigger at the time of inserting a disk cartridge into a cartridge holder for holding the disk cartridge. SOLUTION: A cartridge holder 16 is fitted into a mechanical chassis 17, and left and right support brackets 19 for supporting the rear edge part of the cartridge holder 16 rotatably are screwed to a specific position, thus supporting the cartridge holder 16 so that it can be inclined up and down for the mechanical chassis 17 and the cartridge holding part of the cartridge holder 16 is made correspond to the upper part of a spindle motor 12 that is fixed to the mechanical chassis 17. A drive mechanism for performing reading/writing using a disk-shaped storage that is accommodated rotatably can be made thin and a device can be made light, while preventing the strength of the device body from deteriorating.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-capacity storage device used in an information processing apparatus, and more particularly to a disk storage device using a hard disk as a disk-shaped information recording medium capable of reading / writing on both sides.

[0002]

2. Description of the Related Art Hitherto, as a high-speed large-capacity disk device represented by a removable hard disk device, FIG.
A disk storage device 101 having the configuration shown in FIG. 34 is known, and a disk cartridge 120 having a configuration shown in FIG. Are known.

As shown in FIG. 33, the disk storage device 101 includes a main chassis 1 as main mechanical elements.
The disk drive 102 includes a disk rotation drive mechanism 104 provided in a disk cartridge loading section 103 having an insertion opening 103a in the front surface of the front half of the main body 102, and a read / write head mechanism 105 provided in the rear half of the main chassis 102. ing.

[0004] The disk rotation drive mechanism 104
A chucking magnet 107 is inserted through an opening 106 formed in the center of the bottom of the disc cartridge loading section 103.
Is mounted on a sub-chassis (not shown) disposed below the main chassis 102 so as to be moved up and down so that the spindle motor 108 having the .

The read / write head mechanism 105
The actuator 110 is located near the disk cartridge loading section 103 on the rear half of the main chassis 102 in order to reduce the size of the apparatus, and is mounted on a shaft 109 so that the actuator 110
A read / write head (hereinafter, referred to as an R / W head) H is attached to the tip of an actuator arm 111 that is rotationally driven by a suspension via a suspension 112 made of a leaf spring.

The actuator 110 of the read / write head mechanism 105 includes a movable coil 110a attached to the rear end of the actuator arm 111, and a flat magnet 110b fixed to the main chassis 102 side corresponding to the movable coil 110a. It is composed of
The R / W head H includes a pair of upper and lower heads. Therefore, a pair of upper and lower suspensions 112a and 112b is used as the suspension 112 attached to the distal end of the actuator arm 111. The R / W head H is attached to the actuator arm 111 at predetermined intervals so as to extend on the extension of the center line thereof. And is vertically opposed to the slider. Further, both suspensions 112a, 11
A load bar 113 is fixed to the outer surface of the distal end of 2b so as to protrude in the distal end extension direction.

[0007] The read / write head mechanism 105 constructed as described above is positioned with the distal end of the actuator arm 111 including the suspensions 112a and 112b facing the inside of the disk cartridge loading section 103, and the loaded disk cartridge 120 is mounted. The distal end of the actuator arm 111 is formed in a bifurcated upper and lower shape, that is, a fork shape so as not to interfere with the hard disk.
2a and 112b are attached.

On the rear half side of the main chassis 102, an R / W head H is located near the disk cartridge loading section 103 and in front of the actuator arm 111.
A ramp 114 of a slide-shaped block serving as a guide is fixed facing the inside of the disc cartridge loading section 103, and since this ramp 114 is also inserted into the disc cartridge 120, it is bifurcated so as not to interfere with the hard disk, that is, The recess is shaped to form a fork. The load bar 113 at the tip of the suspension 112a, 112b of the actuator arm 111 slides on the upper and lower surfaces of the ramp 114, so that the distance between the suspensions 112a, 112b, that is, both R / W heads H
Is maintained.

Further, in the latter half of the main chassis 102, a control circuit for the actuator 110, an R / W head H
A circuit board 115 on which a read / write amplifier or the like is mounted is disposed and connected to the actuator arm 111 side by a flexible wiring board 116.

On the other hand, as shown in FIGS. 34 and 35, the disk cartridge 120 has upper and lower halves 121 and 122 each having a right-angled quadrilateral shape, and both sides rotatably housed in a disk housing 123 between the halves 121 and 122. reading/
Writable magnetic disk, ie hard disk 12
4. A hub 125 made of a ferromagnetic material is attached to the center of the hard disk 124.
It corresponds to the center hole 126 formed in the lower half 122.

On the front side of the disk cartridge 120, an opening 127 into which the distal end of the actuator arm 111 is inserted along with the suspensions 112a and 112b to which the R / W head H is attached, straddling the upper and lower halves 121 and 122. A shutter 128 for opening and closing the opening 127 is attached to the opening 127. The shutter 128 is rotatably supported on the upper half 121 side by a shaft 129 so as to be vertically rotatable by a shaft 129. When the cartridge is not used, the shutter 127 is closed to prevent intrusion of dust, fingers, and the like. It is configured to open automatically by the loading operation to the 101.

Thus, as shown in FIG. 33, in order to load the disk cartridge 120 into the disk storage device 101, the disk cartridge loading section 103 in the front half of the main chassis 102 is inserted from the front insertion opening 103a into the opening 127 side. , The shutter 128 is automatically opened by a shutter opening / closing mechanism (not shown), and the opening 127 is opened. And
When the disk cartridge 120 is inserted to a predetermined position, as shown in FIG.
A portion extending from the front end to both suspensions 112a and 112b and a slide-like portion of the ramp 114 are located in the cartridge from the opening 127, and a part of the outer peripheral portion of the hard disk 124 is located in the recess of the ramp 114. . In this state, both suspensions 112a, 112a
2b, the interval between the R / W heads H is larger than the thickness of the hard disk 124, with the load bar 113 abutting on the high position of the ramp 114 to keep the interval wide.

In this state, the spindle motor 108 of the disk rotation drive mechanism 104 moves upward to protrude from the opening 106 at the center of the bottom of the disk cartridge loading section 103 by a predetermined height. The hub 125 is sucked through the center hole 126 of the lower half 122, and the spindle motor 108 and the hard disk 124 are integrated, that is, the hard disk 124 is chucked by the spindle motor 108.

Thereafter, when the spindle motor 108 rotates and reaches a constant angular velocity, the actuator arm 111 is rotated by the actuator 110 inward of the cartridge, that is, in the inner circumferential direction of the hard disk 124 to load the two suspensions 112a and 112b. Bar 1
13 slides down from the high position of the ramp 114 in the lower direction, and the R / W head H
Gently landing on the surface. This landing is based on the rotation of the hard disk 124 and the R / W head H
Aerodynamic effects that occur between the sliders supporting the
An air film is formed between the surface of the so-called hard disk 124 and the slider, and the slider has a thickness of several tens nm.
Floating state, R / W head H and hard disk 12
4 does not touch.

In this state, the read / write of information to / from the hard disk 124 is performed by positioning the R / W head H on a predetermined track by rotating the actuator arm 111.

[0016]

In the disk storage device thus configured, the disk cartridge 1
A shutter 128 that opens and closes the opening 127 of the cartridge 20 is mounted so as to be able to jump up and down (in the thickness direction of the cartridge). The distal end portion of the actuator arm 111 and the slide-shaped portion of the ramp 114 are inserted into the 127. The shutter opening / closing mechanism is generally set on the upper surface side or the lower surface side of the disk cartridge 120, and requires a space for accommodating the shutter opening / closing mechanism. Since the thickness of the disk cartridge is increased, it is difficult to reduce the thickness and size of the entire apparatus, and it is also difficult to reduce the thickness of the disk cartridge 120.

The present invention has been made in view of such a conventional problem, and enables a shutter for opening and closing a head insertion opening of a disk cartridge 120 to be opened and closed from a side. It is an object of the present invention to provide a disk storage device which can be performed reliably and stably, can reduce the cost by simplifying the mechanism, and can make the entire device thinner and smaller.

[0018]

In order to solve the above-mentioned problems and achieve the above object, a disk storage device according to the present invention is provided in a disk cartridge loading section.
The cartridge holder for inserting and holding the disk cartridge is provided with shutter opening means for opening the shutter by operating the cartridge body as a trigger when the disk cartridge is inserted.

According to the present invention, as described above, the shutter for opening and closing the head insertion opening through which the read / write head enters and exits can be reliably opened and closed, and the reliability of the shutter opening and closing operation is improved. In addition, the device can be manufactured at a low cost with a relatively simple structure, and the device can be made thinner and smaller.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disk recording / reproducing apparatus showing a first embodiment as a disk storage apparatus of the present invention will be described below with reference to the drawings. The disk recording / reproducing apparatus according to this embodiment records a new information signal on a hard disk (magnetic disk), which is a specific example of a disk-shaped recording medium, or reproduces an information signal recorded on the hard disk in advance. In addition, the present invention is applied to a disk recording / reproducing apparatus which is also used for reproduction, and will be described in the following order.

[1] Configuration of disk cartridge (FIG. 15) [2] External configuration of disk recording / reproducing apparatus (FIG. 2) [3] Internal configuration of disk recording / reproducing apparatus (3-1) Disk drive mechanism (FIG. 1) (3-2) Shutter opening mechanism (FIGS. 2, 3) (3-3) Information recording / reproducing mechanism (FIGS. 1, 6, 12 to
(FIG. 14) (3-4) Disk loading mechanism (FIGS. 1, 2,
(FIGS. 4 to 11) [4] Operation of Disk Recording / Reproducing Apparatus (4-1) Initial state of disk cartridge insertion (FIG. 16) (4-2) State of disk cartridge before shutter release (FIG. 17) (4-3) (4) State of initial loading of hard disk (Fig. 19) (4-5) State of loading of hard disk (Fig. 20) (4-6) State of completed loading of hard disk (FIGS. 21 and 22) (4-7) Unloading state of hard disk (FIGS. 23 to 25)

[1] Configuration of Disk Cartridge (FIG. 14) As shown in FIG. 14, the disk cartridge 1 has a pair of upper halves 2a and lower halves 2b which are vertically stacked.
And a hard disk (magnetic disk) HD showing a specific example of a disk-shaped recording medium rotatably housed in a disk housing chamber 3 formed in the disk housing 2. A shutter member 4 rotatably housed in the housing chamber 3, and a shutter for urging the shutter member 4 in the direction of closing the head insertion opening 7 of the disk housing 2 while pressing the shutter member 4 in the surface direction of the disk housing chamber 3. A spring 5 and the like are provided. And the upper and lower halves 2a, 2b
And the contact surfaces thereof are fused by, for example, ultrasonic processing or bonded with an adhesive, or the upper and lower halves 2a and 2b are fastened with fixing screws. By using the fixing means, the disk cartridge 1 is integrally formed.

The disk housing 2 of the disk cartridge 1 is formed of a thin container having a substantially square planar shape.
A grip groove 2k to be gripped by a user to take out the disk cartridge 1 from the disk recording / reproducing apparatus and a grip notch 2c for a changer grip are provided on both sides of the rear portion. The grip notch 2c of the disk housing 2 has a function of reliably performing the removal operation when the disk cartridge 1 is automatically removed from the disk storage device by the cartridge changer device.

At the front of the disk housing 2, that is, at the front of the disk cartridge 1 which is to be inserted into the cartridge insertion slot of the disk recording / reproducing apparatus, the center of the radius of curvature is set at the center line in the insertion direction. The offset arc portion 6 is formed by offsetting from L above to one side (in FIG. 14, the left side as viewed from the front side of the cartridge).
As a result, the length of one side surface 2d of the disk housing 2 is set shorter than the length of the other side surface 2e. The head insertion opening 7 is formed as a horizontally long opening extending in the horizontal direction by being cut off.

The head insertion slot 7 has a disk housing 2
A magnetic head 8 which writes a new information signal into the information recording unit when recording to the hard disk HD accommodated therein and reads in an information signal previously recorded in the information recording unit during reproduction is put in and out. As shown in FIGS. 15 to 17, the head insertion opening 7 can be opened and closed by an arc-shaped shutter plate 4a provided at a tip end of a shutter member 4 housed in the disk housing chamber 3. The shutter member 4 has, in addition to the shutter plate 4a, a core hole opening / closing plate 4b that opens and closes a center core hole 9 formed substantially in the center of the lower half 2b. The plates 4a are integrally provided so as to intersect at right angles.

The base end of the shutter member 4, that is, the other end of the core hole opening / closing plate 4b, is rotatable about a fulcrum shaft 2f provided so as to be biased toward the longer side 2e from the rear center of the lower half 2b. It is pivoted. By rotating the shutter member 4 about the fulcrum shaft 2f, the shutter plate 4a moves along the inner surface of the offset arc portion 6, and the core hole opening / closing plate 4b moves along the inner surface of the disk storage chamber 3. I do. When the shutter member 4 is on the short side 2d side, the shutter plate 4a closes the head insertion opening 7 and the core hole opening / closing plate 4b closes the center core hole 9. On the other hand, when the shutter member 4 moves toward the long side surface 2e, the shutter plate 4a opens the head insertion opening 7 and the core hole opening / closing plate 4b opens the center core hole 9. Therefore, a shutter notch 4c that can completely open the center core hole 9 when the shutter is opened is provided in the core hole opening / closing plate 4b of the shutter member 4.

The shutter member 4 is constantly urged in a direction to close the head insertion opening 7 by a shutter spring 5 composed of a torsion coil spring. The shutter spring 5 has its coil portion loosely fitted to a support shaft 2g provided so as to be biased further toward the long side surface 2e than the fulcrum shaft 2f of the lower half 2b. A spring piece 5a protruding from one end of the coil portion of the shutter spring 5 is in contact with the inner surface of the lower half 2b, and a spring piece 5b protruding from the other end of the coil portion is provided on the core hole opening / closing plate 4.
b is locked by a spring receiving piece 4d provided near the base end. The upper half 2a and the lower half 2b of the head insertion portion
In the present embodiment, the shutter of the lower half 2b is provided for securing the clearance between the shutter member 4 and the later-described suspensions 58a and 58b, and for mounting the shutter member 4 urged by the shutter spring 5, particularly the shutter plate 4a. The thickness of the portion in contact with the plate 4a and its peripheral portion is reduced.

Further, the core hole opening / closing plate 4b of the shutter member 4
Is provided with an operation arm 4e that protrudes in an arc shape on the side opposite to the shutter notch 4c. This operation arm 4e
An operation claw 4f is integrally provided at the tip of the.
The operation claw 4f is provided with a step in consideration of the thickness of the hard disk HD, so that the center of the operation claw 4f is exposed to the outside from the joint surface of the upper and lower halves 2a, 2b. ing. Thus, the operating arm 4e of the shutter member 4 penetrates the notch 2i provided in the arc-shaped side wall 2h formed at the rear of the lower half 2b, and the operating claw 4f connected to the tip of the operating arm 4e. Is exposed in a guide groove 10 provided to extend in the front-rear direction on a long side surface 2e of the disk housing 2 from a notch 2j provided in a joining surface of the upper and lower halves 2a and 2b.

The guide groove 10 has a wide portion 10 a which is wide in the thickness direction (overlapping direction) set on the front side of the disk housing 2 and has a width in the vertical direction which is set on the rear side of the disk housing 2. A narrow narrow portion 10b, an introducing portion 10c formed at the tip of the wide portion 10a and also wide and inclined inward, and set between a rear portion of the wide portion 10a and a front portion of the narrow portion 10b. Open / close operation unit 10d. In the opening / closing operation portion 10d of the guide groove 10, the wide portion 1
0a to the narrow portion 10b, the upper half 2
a and a lower half 2b are each formed with an inclined surface 10e. The inclined surface 10e guides an operation piece 41c of a shutter opening lever 41, which will be described later, to move the operation piece 41c from the wide portion 10a to the narrow portion 10b. It is made to be able to move smoothly.

The depth T of the narrow portion 10b of the guide groove 10
b is formed sufficiently deeper than the depth Ta of the wide portion 10a (Tb> Ta), so that the operation claw 4f is moved to the guide groove 10f when the shutter member 4 is completely opened.
So that they do not jump out of the way. The side surface of the opening / closing operation portion 10d having such a step is formed by a part of the above-described arc-shaped side wall 2h, and the outer surface thereof is smoothly continued in an arc shape. This guide groove 10
The operation claw 4 of the shutter member 4 described above is provided in the narrow portion 10b of
is located, and only the tip of the operation claw 4f is normally projected into the guide groove 10 at the position of f.

The hard disk HD is composed of a disk-shaped disk-shaped recording member having both upper and lower surfaces serving as signal recording surfaces according to a magnetic recording system.
Are integrally fixed. The center core 11 of the hard disk HD has a center core hole 9 formed in the lower half 2b.
When the center hole 9 is opened by the rotation of the core hole opening / closing plate 4b, the center hole 9 comes into contact with the turntable-integrated spindle motor 12 inserted from the center core hole 9. The above-described ring-shaped magnet is fitted and integrally provided on the rotating portion of the spindle motor 12, and the hard disk HD is chucked by the spindle motor 12 by the attraction force of the magnet and integrally rotated. Driven.

As shown in FIG. 16 and the like, an erroneous erasure prevention tab 13 for switching the presence or absence of a write-protection hole is provided on one side of the rear part of the disk cartridge 1. Further, positioning holes 14a and 14b for loading the disc cartridge 1 to a predetermined position of the disc recording / reproducing apparatus are provided near the erroneous erasure prevention tab 13 and near the shutter spring 5 located on the opposite side. Is provided.

Although not shown, the core hole opening / closing plate 4b of the shutter member 4 is provided with one or more guide grooves extending in an arc around the fulcrum shaft 2f. Are engaged with the guide pins. The center pin 11 of the hard disk HD is received by the guide pin engaged with the guide groove to reduce the sliding friction force between the core hole opening / closing plate 4b and the center core 11, thereby opening the head insertion port 7 and the center core hole 9. It is made to be performed smoothly.

The upper and lower halves 2a,
As the material of 2b, for example, a synthetic resin material such as polycarbonate PC is suitable, but other synthetic resins can also be used. In this embodiment, the shutter member 4 is made of polycarbonate PC as the material of the shutter member 4.
On the other hand, a stainless steel plate is used for the core hole opening / closing plate 4b, and a polycarbonate PC shutter plate 4a is formed in two colors at the tip of the stainless steel plate.
The shutter member 4 is integrally formed. However,
The entire shutter member 4 may be formed of a synthetic resin material such as polycarbonate PC, and the entire shutter member 4 may be formed of a metal material such as a stainless steel plate. Further, even when the shutter member 4 is molded in two colors, another synthetic resin material such as polyacetal POM having excellent slidability can be used in addition to polycarbonate PC.

[2] External Configuration of Disk Recording / Reproducing Apparatus (FIG. 2) The disk recording / reproducing apparatus of this example is a pop-up type disk storage device in which a cartridge holder 16 in which a disk cartridge 1 is mounted is tilted. The appearance is shown in FIG. This disk recording / reproducing apparatus has a mechanical chassis 17 that is large enough to accommodate a disk drive mechanism 30, a shutter opening mechanism 40, an information recording / reproducing mechanism 50, and a disk loading mechanism 70, which will be described later, and whose upper side is open.
And a cartridge holder 16 and the like, which can be tiltably mounted in the mechanical chassis 17 and can open and close a cartridge insertion port 18 on the front surface.

The mechanical chassis 17 is formed of a rectangular housing having a shallow bottom and opened on the upper surface. Brackets 19 are mounted as a pair on the left and right. Bearing holes are provided at the rear portion of the support brackets 19, and each of the bearing holes has a pivoting fulcrum shaft 1 provided at both ends of the rear portion of the cartridge holder 16.
9a are rotatably fitted respectively.

The cartridge holder 16 is slightly smaller than the mechanical chassis 17 when viewed from a plane, and has a rectangular upper surface plate 16a.
And a side plate 16 continuous on both left and right sides of the top plate 16a.
b, 16c, and holding plates 16d, which are formed by bending the inner side plates 16b, 16c at appropriate widths continuously to the lower portions thereof.
16e, and a cartridge insertion port 18 is set at the front of a space surrounded by these. Therefore, the interior of the cartridge holder 16 is a space having a size corresponding to the size of the disk cartridge 1.

Further, a part of each of the holding plates 16d, 16e is bent downward at the lower part of the both side plates 16b, 16c of the cartridge holder 16 so that the shaft supporting pieces 16f, 1c are formed.
6 g are provided. These shaft support pieces 16f, 16
g, a holder reinforcing shaft 20 as a reinforcing member between the cartridge holding portions is provided.
0 are fixed to the shaft supporting pieces 16f, 16
g. Further, stopper portions 22a and 22b are provided at an intermediate portion in the front-rear direction of the cartridge holder 16 to prevent a part of the side plates 16b and 16c from being bent inward to prevent the disc cartridge 1 from being inserted beyond a predetermined amount. (See FIG. 15 and the like).

At the front of one side plate 16b of the cartridge holder 16, openings 23a and 23b are provided which extend in the front-rear direction at a predetermined distance in the front-rear direction. The holding plate 1 is provided at the rear of the shaft supporting piece 16g of the other side plate 16c of the cartridge holder 16.
6e is bent downward so that the support piece 16h
The support piece 16h is provided with an engaging pin 24 protruding inward. The engagement pin 24 forms a part of a lock mechanism of the cartridge holder 16 which will be described later.

Further, the upper plate 1 of the cartridge holder 16
Pressing plate springs 25 are attached to both front sides of 6a so as to correspond to above the holding plates 16d and 16e.
The presser plate spring 25 urges the inserted disk cartridge 1 toward the holding plates 16 d and 16 e to position the disk cartridge 1 relative to the cartridge holder 16 in the height direction. As a material of the cartridge holder 16, for example, a metal sheet metal material such as an electrogalvanized steel plate or a stainless steel plate is preferable. Also,
As a material of the mechanical chassis 17, for example, a metal material such as an aluminum die-cast or an aluminum plate is preferable, but an engineering plastic having a high mechanical strength such as a polycarbonate can also be used.

[3] Internal Configuration of Disk Recording / Reproducing Apparatus (3-1) Disk Driving Mechanism (FIG. 1) This disk recording / reproducing apparatus includes a disk driving mechanism 30 as shown in FIG. This disk drive mechanism 3
Reference numeral 0 denotes a turntable-integrated spindle motor 12 for chucking the hard disk HD of the disk cartridge 1 described above. The spindle motor 12 is placed upward at the front central portion of the mechanical chassis 17, and a screw portion passing through the flange portion 12 a is screwed into a screw hole of the mechanical chassis 17 by a plurality of mounting screws 31. It is fastened and fixed on the mechanical chassis 17.

The flange portion 1 of the spindle motor 12
A plurality of cartridge support pins 32 for supporting the vicinity of the center core hole 9 of the disk cartridge 1 are provided in 2a. The magnet is attached to the rotating part of the spindle motor 12 as described above.
The center core 11 is attracted by the magnet and the hard disk HD is chucked on the rotating part, so that the hard disk HD is rotated and driven by the spindle motor 12 in the disk housing 2.

(3-2) Shutter Opening Mechanism (FIGS. 2 and 3) The shutter opening mechanism 40 is, as shown in FIG. 2 and the like, a disk cartridge 1 mounted on the cartridge holder 16 with the cartridge body as a trigger. This is for opening the head insertion opening 7 of the cartridge holder 16.
Is disposed on one side plate 16b. The shutter opening mechanism 40 includes a shutter opening lever 41 that is a balance arm member, and a coil spring 42 that is a specific example of an urging member that urges the shutter opening lever 41. The shutter opening lever 41 includes a lever main body 41a having a U-shaped cross section, an input piece 41b as a scanning end protruding from both sides of the lever main body 41 so as to be separated from each other in a lateral direction, and an operation piece 41c as an operation end. And
At the tip of the input piece 41b, there is provided a contact portion 41d that protrudes on the movement locus of the disk cartridge 1.

In order to attach the shutter opening lever 41 to the cartridge holder 16, front and rear openings 23 a, 23 b are formed in the side plate 16 b of the cartridge holder 16.
A pair of pin support pieces 43a and 43b are provided by bending a part between them up and down. A lever body 41a of the shutter opening lever 41 is interposed between the pin support pieces 43a and 43b, and the respective pin support pieces 43a and 43b are provided.
A shaft pin 44 having a head at one end is passed through the pin hole provided in the lever body 41a and the pin hole provided in the lever body 41a. Is supported on one side so as to be able to swing horizontally.

In this state, the input piece 41b of the shutter opening lever 41 is connected to the opening 2 behind the cartridge holder 16.
The action piece 41c is opposed to the front opening 23a. A coil portion of a coil spring 42 is loosely fitted to a shaft pin 44 which supports the shutter opening lever 41 on the cartridge holder 16, and a spring piece 42 a continuous with one end of the coil portion contacts the side plate 16 b. The spring piece 42b connected to the other end of the coil portion is in contact with the lever body 41a. Due to the spring force of the coil spring 42, the input piece 41b of the shutter opening lever 41 is urged in a direction to enter the opening 23b, and as a reaction, the action piece 41c is urged in a direction to come out of the opening 23a.

In order to limit the amount of rotation of the shutter opening lever 41, an input piece 4 is provided on the inner surface of the lever body 41a.
An input-side stopper 41e for preventing 1b from entering the opening 23b by a predetermined amount or more, and an operating-side stopper 41f for preventing the operating piece 41c from entering the opening 23a by a predetermined amount or more are set. . The input piece 41b of the shutter opening lever 41 enters the wide portion 10a through the introduction portion 10c of the guide groove 10 of the disk cartridge 1, and the action piece 41c is moved to the operation portion 10d of the guide groove 10.
Through the narrow portion 10b.

The input piece 41 of the shutter opening lever 41
As the function of b, in addition to functioning as an input section for operating force,
Since the disk cartridge 1 is also required to have an appropriate elasticity while maintaining a certain degree of rigidity, the guide groove 1 is used in this example.
The contact portion 41d is formed so as to be wider in the width direction of 0, and the distal end portion is bent in the depth direction of the guide groove 10. Therefore, the rigidity of the input piece 41b in the width direction (groove width direction) of the guide groove 10 is higher than the rigidity of the guide groove 10 orthogonal to the guide groove 10 in the depth direction (groove depth direction). The piece 41b is hardly deformed in the groove width direction. On the other hand, the function of the action piece 41c of the shutter opening lever 41 is to mainly press the operation claw 4f. It is formed to have high rigidity. Therefore, the rigidity of the acting piece 41c in the groove width direction is lower than the rigidity of the acting piece 41c in the groove depth direction. The disc cartridge 1 can follow the vertical play of the disc cartridge 1 held therein.

The side plate 16b of the cartridge holder 16 on the shutter opening mechanism 40 side,
An erroneous insertion prevention convex portion 26 for preventing erroneous insertion of the disc cartridge 1 is provided on the rear side of 3a, 43b. The erroneous insertion preventing protrusion 26 is formed by bulging a part of the side plate 16b inward in a hemispherical shape.
The disk cartridge 1 can be completely inserted only when the guide groove 10 is inserted in alignment with the erroneous insertion prevention projection 26, and when these are not aligned, the disk cartridge 1 can be inserted. Is prevented from being inserted, thereby making it possible to determine whether the inserted state of the disk cartridge 1 is appropriate.

Thus, the operation claw 4 of the shutter member 4 is provided in the narrow portion 10b of the guide groove 10 of the disc cartridge 1.
When the operating claw 4f is pressed by the action piece 41c of the shutter opening lever 41, the shutter member 4 is rotated against the spring force of the shutter spring 5 so that the head insertion port 7 The center core hole 9 is opened together.

(3-3) Information Recording / Reproducing Mechanism (FIGS. 1, 6, 12 to 14) The information recording / reproducing mechanism 50 is disposed at the rear of the mechanical chassis 17 as shown in FIG. And a dog leg type rotation actuator 51 as a rotation support member, a pair of upper and lower sliders 52a, 52b floatingly attached to the tip of the rotation actuator 51, and a rotation actuator 51 rotatably. An actuator support 53 for supporting is provided. Actuator support 53
Is mounted on the mechanical chassis 17 and is fastened and fixed by fixing means such as mounting screws.

The rotation actuator 51 is rotatably supported by an actuator support 53 that is fastened and fixed to the mechanical chassis 17 by fixing means such as mounting screws, and is fixed to the rotation arm 55. Drive coil 56 and a pair of mount plates 57a and 57b,
A pair of suspensions 58a, 58b and the like fixed to the mount plates 57a, 57b are provided. The pivot arm 55 of the pivot actuator 51 is rotatably supported on the actuator support base 53 by a bearing 59 fitted and fixed at a middle part in the horizontal direction, and has a bifurcated portion 55a formed on one side thereof. A fan-shaped drive coil 56 around which a copper wire is wound is engaged and held.

As shown in FIG. 9, a step is provided on both the upper and lower surfaces of the distal end of the rotating arm 55, and the base ends of the mount plates 57a and 57b are fitted to the step.
By fixing this base end by fixing means such as spot welding, caulking or adhesive, a pair of mount plates 57a and 57b are opposed to each other with a predetermined gap in the vertical direction. A pair of mounting plates 57a, 57
b is formed in an inverted L-shape, and suspensions 58 are provided on the inner surfaces of the distal ends of these mount plates 57a and 57b.
The base ends of the a and 58b are fixed by fixing means such as spot welding, caulking or an adhesive, respectively. It is open in communication over the entire circumference. As described above, the rotation actuator 51 includes the rotation arm 55, the mount plates 57a and 57b, and the suspension 58.
a, 58b form an L-shape in plan view, that is, a dog-leg shape.

The pair of suspensions 58a, 58b
It is made of a leaf spring-like member having elasticity, and the opening 60 is provided at the center on the base end side to reduce the rigidity, so that the base end has a low rigidity. In this manner, the sliders 52a and 52b attached to the distal end portions can be easily moved up and down by lowering the rigidity of the proximal end portions of the suspensions 58a and 58b to impart great flexibility to the distal end side. It is tiltable so that it can be used. Also,
As shown in cross section in FIG.
a, 58b are bent inward toward the inner surface to form ribs 58b.
a ₁ , 58a ₂ and 58b ₁ , 58b ₂ , and the inner ribs 5
8a ₁ and 58b ₁ are removed the tip side (cutting back). Thus, by cutting back the suspension 58a, the rib 58a ₁ of 58b the inner surface side of, 58b _1, the ribs 58a _1, 58b ₁ can eliminate it may interfere with the lamp arm 92, the ribs 58a _1, 58b ₁ You don't have to worry about presence.

Further, in the middle of each of the suspensions 58a and 58b, a convex portion 61 projecting inward in a hemispherical shape is provided.
a, 61b are provided. This suspension 58
A ramp, which will be described later, is inserted between the convex portions 61a, 61b of the a, 58b during loading and unloading, whereby the front ends of the two suspensions 58a, 58b are spread so as to be separated in the vertical direction, and the upper and lower sliders are extended. The upper and lower surfaces 52a and 52b of the hard disk HD do not come into contact with each other. These convex portions 61a, 6
1b may be formed by applying a drawing process to the suspensions 58a and 58b so as to expand into a hemispherical shape, or may be formed into a hemispherical shape by outsert molding, or may be formed by various other means.

As the shape of the pair of sliders 52a, 52b, for example, those having a structure as shown in FIGS. 12 to 14 can be used. FIG. 12 shows a transverse pressure contour type slider (hereinafter, referred to as "TPC type slider") 52A as an intermediate flying type slider. In this TPC type slider 52A, an air flow groove 62 extending in the front-rear direction is formed in the center of the back surface of the block-shaped slider body, and ridges 63 located on both sides thereof face the upper and lower surfaces of the hard disk HD. The disk facing surface 63a and the disk facing surface 6
Flow groove steps 63b and 63c formed on both sides of 3a and continuing in the front-rear direction, and a tapered surface 63d formed on the rotation direction front side of the ridge 63 are provided.

According to the TPC type slider 52A, a constant representing how the parallelism between the disk facing surface of the slider floating above the surface of the hard disk HD and the disk surface varies inside and outside in the disk radial direction.・ Flying height performance (hereinafter referred to as “CFH performance”) can be improved, speed dependency is low, and substantially flat performance can be obtained both inside and outside in the disk radial direction. Thus, the slider can be floated from the disk surface with good stability.

FIG. 13 shows a catamaran type slider 52B. This catamaran type slider 52B is
It forms the basic form of the TPC type slider 52A.
Has a structure from which is removed. Although the catamaran type slider 52B has a slightly lower CFH performance than the TPC type slider 52A, it can sufficiently withstand actual use.

FIG. 14 shows a negative pressure type slider 52C. The negative pressure type slider 52C generates a negative pressure on the back surface of the slider by the negative pressure generating groove 62a,
This negative pressure and the air bearing surface (Air Bearin
g Surface) to lift the slider from the disk surface by the differential pressure from the positive pressure (absolute value of positive pressure> absolute value of negative pressure). This negative pressure type slider 52C is
The air flow groove 62 has a shape as if the front side is closed, and has a negative pressure generating groove 62a opened from the center of the back surface of the slider body to the rear. According to the negative pressure type slider 52C, the CFH performance is as good as the TPC type slider 52A, a flat performance can be obtained, and the slider can be floated from the disk surface with good stability.

The sliders 52A-52 having such a configuration
52C, a magnetic head 8 for both recording and reproduction is provided.
Are provided so as to face up and down, respectively. In any of the embodiments, the sliders 52A to 52C are arranged such that the center line X of the air flow groove 62 or the negative pressure generating groove 62a intersects the center line Y of the suspensions 58a and 58b at a predetermined intersection angle θ. Is set.

In general, in the conventional slider, the extending direction of the air flow groove is set in parallel with the extending direction of the suspension, but in this embodiment, the intersection angle θ is about 70 °
Is set to Thus, the suspension 58
By attaching the sliders 52a and 52b at a predetermined intersection angle θ with respect to the extending direction of the sliders a and 58b, the vent angle of the sliders 52a and 52b can be reduced. The intersection angle θ is not limited to 70 ° as in the present embodiment, but an appropriate angle can be set as needed.

The middle part of the rotating arm 55 is shown in FIG.
As shown in FIG. 7, concave portions 64a and 64b are provided by stealing the inside of both upper and lower surfaces, and the weight of the rotating arm 55 is reduced by the concave portions 64a and 64b. On the other hand, on the upper surface of the rotating arm 55, a flexible printed wiring board 65 is disposed so as to close the opening of the recess 64a. The arm contact portion of the flexible printed wiring board 65 is adhered to the pivot arm 55 with an adhesive and fixed to the boss 55c of the pivot arm 55 with a mounting screw 66.

The pivot arm 5 is provided by a flexible printed wiring board 65 lined with a reinforcing plate such as aluminum.
5 is intended to reinforce the strength and increase its rigidity. The flexible printed wiring board 65 has a configuration in which a base plate 65a, which is a backing reinforcing plate made of aluminum or the like, is adhered to one side. In this example, the strength of the rotating arm 55 is increased by using a box type. Thus, the strength of the rotating arm 55 can be increased while the weight of the rotating arm 55 is reduced.

This flexible printed wiring board 65
It is connected to a connector 68 via a flexible cable section 67. The connector 68 is connected to the spindle motor 12.
Is mounted on the wiring board 35 arranged on the side of
This wiring board 35 is fixed on the mechanical chassis 17. An electronic circuit is printed and formed of a conductor on the wiring board 35, and an amplifier 36 and other electronic components are electrically connected to the electronic circuit to form a control device.

Thus, the rotation actuator 51
Is bent substantially 90 degrees at the mount plate 57a, 57b, as shown in FIGS.
It is formed in an inverted L-shape as called a so-called dog leg. Due to such a shape, the rotary actuator 51 of the present example is called a dog leg type.

A flat magnet 37 curved and formed in an arc shape so as to face the drive coil 56 from below is mounted and fixed on the actuator support base 53 which rotatably supports the rotary actuator 51. ing. The NS poles of the magnet 37 are magnetized in the surface direction (for example, the S pole is closer to the spindle motor 12 and the N pole is farther from the spindle motor 12).
By adjusting the magnitude of the magnetic force acting between
The rotation position of the rotation actuator 51 is automatically controlled within a predetermined area. The voice coil motor of the rotary actuator 51 does not generate torque outside the automatic control area, and the rotary arm 55 is rotated by the cam gear of the disk loading mechanism 70 described below, and locked at a predetermined rotational position. It has been made to be.

In the present embodiment, a magnesium alloy is used as the material of the rotating arm 55 and the mounting plate 57 is used.
Although stainless steel plates are used as the materials of the a and 57b and the suspensions 58a and 58b, the suspensions 58a and 58b can be formed of engineering plastic or the like having high mechanical strength such as polycarbonate. Further, the rotating arm 5
5 and the mount plates 57a, 57b may be integrally formed of the same material.

(3-4) Disk Loading Mechanism (FIG. 1, FIG. 2, FIG. 4 to FIG. 11) In this disk recording / reproducing apparatus, the disk drive mechanism 30, the shutter opening mechanism 40, and the information recording / reproducing mechanism 50 are provided. Correspondingly, a disk loading mechanism 70 for loading and unloading the hard disk HD with respect to the disk drive mechanism 30 is provided. The disk loading mechanism 70 is provided on the mechanical chassis 17 similarly to the disk drive mechanism 30.

The disc loading mechanism 70 includes a drive motor 71, a worm 72, a worm wheel 73, a cam gear 74, a ramp member 75, and an eject lever 76.
A holder lock member 77, a pop-up spring 78, a pop-up suppressing plate 79, a positioning pin 80, a cartridge support pin 81a, a holder stopper 81b, and the like. Drive motor 71 of disc loading mechanism 70
Is disposed behind the actuator support base 53, and the worm 72 is fixed to the rotation shaft thereof. The worm 72 meshes with a worm wheel 73 rotatably supported by a support shaft 73b erected on the mechanical chassis 17.

The worm wheel 73 has an input gear 7
3a is provided integrally, and an intermediate gear 82a is meshed with the input gear 73a. This intermediate gear 82a
Are integrally provided with an output gear 82b, which are rotatably supported by a support shaft 82c erected on the mechanical chassis 17. The output gear 82b is meshed with a gear portion 74a of a cam gear 74 rotatably supported by a cam shaft 83 also provided upright on the mechanical chassis 17.

The cam gear 74, which is a rotary cam mechanism as an operation mode switching means, is formed on a cam peripheral surface 74b having a circular outer peripheral surface formed on one surface side of the gear portion 74a and on the other surface side of the gear portion 74a. And a cam groove 74c. A part of the cam peripheral surface 74b is cut away and depressed inward to provide a cam relief part 74d, and by providing the cam relief part 74d, one end of the cam peripheral surface 74b protrudes in an arc shape in the circumferential direction. The cam action end 74e is formed. A cam projection 55b provided so as to protrude downward below the rotating arm 55 of the rotating actuator 51 is slidably or abutted on the cam peripheral surface 74b and the cam operating end 74e.

The cam gear 74 causes the rotating operation of the rotating actuator 51, the movement of the ramp 91 for guiding the magnetic head 8 on the surface of the disk-shaped recording medium, and the eject lever for ejecting the disk cartridge 1 as described later. Operation 76 is switched.

Thus, when the cam projection 55b of the rotary actuator 51 is in sliding contact with the cam peripheral surface 74b of the cam gear 74, the magnetic head 8 is moved
Before loading (see FIG. 19) outside the disk cartridge 1 and an arm locked state where the rotary actuator 51 is completely protruded out of the disk cartridge 1 (see FIGS. 24 and 25).
See). Further, the cam projection 55b is
The state within the cam escape portion 74d is a loading completed state (see FIGS. 21 and 22). Only in the loading completed state, the rotation actuator 51 can automatically control the rotation position by the voice coil motor including the drive coil 56 and the magnet 37 described above. A cam gear 74 is provided on the inner surface of the cam projection 55b.
The state in which the cam working end 74e is in contact with the magnetic head 8 is in the middle of loading when the magnetic head 8 is inserted into the disk cartridge 1 (see FIG. 20), and in the middle of unloading when the magnetic head 8 is discharged from the disk cartridge 1. This is the state (see FIG. 23).

The cam groove 74c of the cam gear 74 is formed so as to correspond to the cam peripheral surface 74b and the cam relief 74d. That is, the cam groove 74c is used only when ejecting the disk cartridge 1 out of the apparatus. Specifically, the cartridge holder 16 is moved to the mechanical chassis 17 through the operation of the eject lever 76.
The operation of releasing the holder lock mechanism that locks the disk cartridge 1 and the operation of ejecting the disk cartridge 1 from the cartridge holder 16 are executed.

For this reason, the cam groove 74c is
The opposite side of 4d extends in the circumferential direction on the outer peripheral side close to the cam peripheral surface 74b, enters the radial inside from a position rotated approximately 90 °, and enters the cam shaft 83 at a position rotated approximately 180 °. It is formed so as to come closest. A cam pin 84 of an eject lever 76 as an eject arm member is slidably engaged with the cam groove 74c.

The eject lever 76 is rotatably supported by a fulcrum shaft 85 erected on the mechanical chassis 17 at a middle portion in the longitudinal direction. The above-described cam pin 84 is attached to one end in the longitudinal direction of the eject lever 76, and is engaged with the cam groove 74c of the cam gear 74 from below, as shown in FIGS. Further, a pressing portion 76a for rotating the holder lock member 77 of the holder lock mechanism is provided at the other end in the longitudinal direction of the eject lever 76.

Further, the fulcrum shaft 8 of the eject lever 76
A base end of an eject arm 86 is provided continuously and integrally in the vicinity of 5, and a cartridge pressing pin 87 is integrally provided at a distal end of the eject arm 86. Eject lever 76 having such a configuration
However, as shown in FIG. 19 and the like, the cam lever 84 side of the eject lever 76 extends rearward, the pressing portion 76a side extends diagonally forward, and the eject arm 86 extends laterally. It is arranged.

The pressing portion 76a of the eject lever 76
The holder lock mechanism provided so as to oppose the coil spring 8 for urging the holder lock member 77 described above to rotate.
8 is provided. As a material of the holder lock member 77,
In this example, a stainless steel plate is used, but it can be formed of engineering plastic or the like having high mechanical strength such as polycarbonate.

As shown in FIG. 1 and the like, the holder lock member 77 is rotatably supported by a fulcrum shaft 89 erected on the mechanical chassis 17. This holder lock member 77 has a locking claw 77 provided with a claw point facing rearward.
a, a pressure receiving portion 77b abutting against the pressing portion 76a of the eject lever 76, and a spring receiving piece 77c to which one end of the coil spring 88 is locked. Further, the holder lock member 77 is provided with a plurality of arc grooves 77d extending in an arc shape in the circumferential direction around the fulcrum shaft 89,
A plurality of regulating pins 89a erected on the mechanical chassis 17 are slidably engaged with the respective arc grooves 77d.

The other end of the coil spring 88 is locked to one of the restriction pins 89a, and the spring force of the coil spring 88 causes the holder lock member 77 to move the pressure receiving portion 77b closer to the pressing portion 76a. Being energized. The amount of rotation of the holder lock member 77 is regulated to a predetermined position by a regulation pin 89a engaged with the arc groove 77d. Locking claw 77a of this holder lock member 77
Is engaged with the engagement pin 24 in a state where the cartridge holder 16 is inserted into the mechanical chassis 17, whereby the cartridge holder 16 is locked.

Below the cartridge holder 16,
A pop-up spring 78 made of a coil spring, which is a specific example of the urging member, is provided. The pop-up spring 78 is compressed when the cartridge holder 16 is mounted on the mechanical chassis 17 and is tilted up and down by releasing the holder lock mechanism. As shown in FIGS. The front side of the holder 16 is lifted. The amount by which the cartridge holder 16 is lifted is limited by a pop-up restraining plate 79 as a rise-restricting member. As the pop-up spring 78, other than this example, a spring material such as a leaf spring can be used, and a rubber-like elastic body such as synthetic rubber can also be used.

The pop-up suppressing plate 79 has a J-shaped vertical cross-section, and a bearing piece 79a is provided on the upper side thereof so as to be parallel to the cross-sectional direction. A shaft pin 79b is fixed to the bearing piece 79a of the pop-up suppressing plate 79, and the shaft pin 79b
It is rotatably supported at zero. This support bracket 9
Reference numeral 0 is fixed to the mechanical chassis 17 by fixing means such as mounting screws.
Is attached to the mechanical chassis 17 via the support bracket 90 so as to be tiltable so as to be vertically lowered.

As shown in FIGS. 1 to 5, the pop-up restraining plate 79 has a hook portion 79c on the distal end side slidably engaged with the small-diameter portion 20a of the holder reinforcing shaft 20 described above. The restraining plate 79 limits upward tilting (undulation) of the cartridge holder 16. In addition, as a tilting means of the cartridge holder 16,
In addition to the present embodiment, a cam mechanism and other means can be applied. For example, a cylindrical cam having a helically extending cam groove is rotatably provided on the mechanical chassis 17, and a cam pin slidably engaged with the cam groove is provided on the cartridge holder. Is moved up and down to tilt the cartridge holder.

Further, a lamp 91 for temporarily widening the interval between the pair of sliders 52a and 52b is provided near the distal end of the above-described rotary actuator 51 on the inner side of the mechanical chassis 17. The ramp 91 includes a ramp arm 9 inserted between a pair of sliders 52a and 52b.
2 and pressing the rear side of the rotating arm 55 to move the slider 52
a, and a pressing portion 93 for moving the cartridge 52a to the cartridge side. As a material of the lamp 91, for example, a synthetic resin material such as polyacetal (POM) is suitable, but other synthetic resin materials can also be used.

The lamp 91 is provided with a pair of parallel insertion holes 91b and 91c, and these insertion holes 91b and 91c have linear guide shafts 94a and 94c.
b are slidably inserted. Both front and rear end portions of the pair of linear guide shafts 94a and 94b are sandwiched from above and below by a pair of bearing blocks 96 and shaft holding pieces 96a from front and rear, thereby being fixed to the mechanical chassis 17 and supported at both ends. These linear guide shafts 94a, 94
A lamp arm 92 is arranged above the middle of 4b.

The ramp arm 92 is set on the movement trajectory of the projections 61a and 61b provided on the upper and lower suspensions 58a and 58b of the rotary actuator 51. A pair of upper and lower sliders 52a and 52b Is configured to move. As shown in FIG. 9, inclined surfaces 92a are provided on both upper and lower surfaces of the tip end of the lamp arm 92 so that the convex portions 61a and 61b can easily climb up.

A coil spring 95 for urging the ramp 91 toward the spindle motor 12 has one end locked by a spring locking piece 91a provided on the lamp 91 and the other end fixed to the mechanical chassis 17 by a spring receiver. The pin 97 is locked. The forward movement of the coil spring 95 due to the spring force is restricted by a stopper pin 98 disposed between the pair of linear guide shafts 94a and 94b and fixed to the mechanical chassis 17. The amount of movement of the rotation actuator 51 in the direction away from the spindle motor 12 is limited by a stopper shaft 69 provided on the back side and fixed to the mechanical chassis 17.

Further, a pair of positioning pins 80 and 80 and a stopper 81 for a holder are provided on both sides of the front portion of the mechanical chassis 17.
b, 81b, and a pair of cartridge support pins 81a, 81a are provided on both sides of the middle part. The positioning pin 80 and the cartridge support pin 8
Numeral 1a is for positioning and supporting the disk cartridge 1 at a predetermined position. Two support pins 81a support both sides of the disk housing 2 on the side of the head insertion port 7 from below, and two positioning pins 81a. The positioning holes 14a and 14b of the disc cartridge 1 are fitted into the respective 80s, thereby positioning the disc cartridge 1 in the planar direction and the vertical direction. Further, the two stoppers 81 b for the holder are used when the disc cartridge 1 is not inserted into the cartridge holder 16.
This is an over-insertion preventing member for the cartridge holder 16 to prevent the cartridge holder 16 from entering the mechanical chassis 17 to the back more than a predetermined amount.

The disk drive mechanism 30, the shutter opening mechanism 40, the information recording / reproducing mechanism 50, and the disk loading mechanism 70 configured as described above are combined. That is, as shown in FIG. 2, the cartridge holder 16 is fitted into the mechanical chassis 17, and the left and right support brackets 19 that rotatably support the rear end of the cartridge holder 16 are screwed at predetermined positions. Thus, the cartridge holder 16 is supported so as to be vertically tiltable with respect to the mechanical chassis 17, and the cartridge holding portion of the cartridge holder 16 corresponds to the upper side of the spindle motor 12 fixed to the mechanical chassis 17. As described above, the disk recording / reproducing apparatus of the present embodiment is configured.

[4] Operation of Disk Recording / Reproducing Apparatus Next, the operation of the disk recording / reproducing apparatus configured as described above will be described.

(4-1) Initial state of insertion of the disc cartridge As shown in FIGS. 2 and 4, when the front portion of the cartridge holder 16 is lifted up and popped up, the cartridge insertion slot 18 is opened and the disc is inserted. The cartridge 1 can be inserted.

From this state, as shown in FIG. 16, the disc cartridge 1 is pushed into the cartridge insertion opening 18 from the offset arc portion 6 side. At this time, the shutter opening lever 41 of the shutter opening mechanism 40 provided on the side surface of the cartridge holder 16 causes the tip of the input piece 41b to largely enter the opening 23b due to the spring force of the coil spring 42, and acts as a reaction. The piece 41c enters the opening 23a slightly. The input piece 41 b of the shutter opening lever 41 is located forward of the movement locus of the guide groove 10 provided on the side surface of the cartridge holder 16.
The contact portion 41d provided at the tip of the is located.

At this time, if the operator mistakenly inserts the disc cartridge 1 upside down, the shutter opening lever 41 is swung on the side plate 16b of the cartridge holder 16 on the side where the shutter opening mechanism 40 is provided. Since the erroneous insertion prevention convex portion 26 swelling inward is provided near the pin support pieces 43a and 43b movably supported, the erroneous insertion prevention convex portion 26 is provided in the guide groove 10 of the cartridge housing 2. Abuts on the hexagonal portion of the offset arc portion on the side surface 2d without the gap. As a result, further insertion of the disk cartridge 1 is prevented, so that an erroneous insertion of the disk cartridge 1 can be known in the middle of the insertion operation.

In the case of this erroneous insertion state, the disk cartridge 1 is extracted, turned upside down, and inserted again. When the disk cartridge 1 is inserted in a correct state with the upper and lower sides in place, the erroneous insertion preventing protrusion 26 is maintained even after the offset arc portion 6 reaches the position of the erroneous insertion preventing protrusion 26.
Is inserted into the guide groove 10 of the cartridge housing 2, so that the disc cartridge 1 can be further inserted.

(4-2) Disk cartridge before shutter release state Next, as shown in FIG. 17, when the disk cartridge 1 is pushed and inserted deeply, the shutter opening lever 41 which is largely inserted into the cartridge holder 16 abuts. Part 4
1d comes into contact with the introduction portion 10c of the guide groove 10, and is pressed by the inclined surface of the introduction portion 10c, so that the shutter opening lever 41 is pressed.
Is rotated clockwise in FIG. 4 against the urging force of the coil spring 42. As a result, the contact portion 41d of the shutter opening lever 41 enters the wide portion 10a of the guide groove 10 and the action piece 41 of the shutter opening lever 41
c enters the operation portion 10d of the guide groove 10. Then, the action piece 41c is guided by the upper or lower inclined surface 10e, guided to the narrow portion 10b, enters the back, and operates the operating claw 4f of the shutter member 4 located on the front side of the narrow portion 10b.
Abut.

(4-3) State of Disc Cartridge After Opening Shutter Further, as shown in FIG. 18, when the disc cartridge 1 is further pressed and inserted to a predetermined position, the movement of the disc cartridge 1 is shifted to the left and right of the cartridge holder 16. The hard disk HD, which is limited by the stopper pieces 22a and 22b and is accommodated in the disk accommodation chamber 3, corresponds to the position above the spindle motor 12 of the disk drive mechanism 30.

At this time, when the operating claw 4f of the shutter member 4 is pushed by the action piece 41c of the shutter opening lever 41 of the shutter opening mechanism 40 and moves to the rear end of the narrow portion 10b of the guide groove 10, the shutter member 4 Is rotated clockwise in FIG. 17 about the fulcrum shaft 2f. Thereby, the shutter plate 4a of the shutter member 4 and the core opening / closing plate 4
b moves in the same direction.
Insertion opening 7 and core opening / closing plate 4 closed by
The center core hole 9 closed by b is opened. Thus, the operation of inserting the disk cartridge 1 into the cartridge holder 16 is completed.

(4-4) Initial Loading State of Hard Disk Next, the mechanical chassis 17 is moved in the state shown in FIGS.
, The cartridge holder 1 with the front side protruding
6 is pressed against the urging force of the pop-up spring 78. As a result, the cartridge holder 16 is inserted into the mechanical chassis 17, and the two positioning pins 80 of the mechanical chassis 17 are guided by the conical portions 80a into the pair of left and right positioning holes 14a, 14b of the disk cartridge 1 and engage with each other. At the same time, the disk housing 2 is placed on the two cartridge support pins 81a.

As a result, the disk cartridge 1 is supported on the front side by the two cartridge support pins 81a, and supported on the rear side by the two positioning pins 80. In this manner, the four corners are supported from below. Thus, the positioning in the height direction and the positioning in the horizontal direction of the disk cartridge 1 are performed simultaneously.

At this time, the center core 11 of the hard disk HD housed in the disk cartridge 1 is attracted by the magnet of the spindle motor 12. As a result, the hard disk HD is
The spindle motor 12 drives the spindle motor 12 so as to be integrated with the hard disk HD.
Are rotationally driven together.

As shown in FIG. 19, when the cartridge holder 16 is pushed into the mechanical chassis 17, an operation switch provided in conjunction with the pushing operation is operated, or the cartridge holder 16 is manually operated thereafter. By operating the operation start switch, the drive motor 71 is rotated. When the drive motor 71 is started, the rotational force of the worm 72 fixed to the rotating shaft is transmitted from the worm wheel 73 meshing with the worm 72 via the input gear 73a, the intermediate gear 82a and the output gear 82b to the cam portion 74a from the gear portion 74a. Is transmitted to

At this time, the entire rotary actuator 51 of the information recording / reproducing mechanism 50 is pushed out of the disk cartridge 1 by the action of the cam gear 74,
The upper and lower sliders 52a, 5a attached to the tip of the rotary actuator 51 which is bent like a dog leg at the mount plates 57a, 57b.
Reference numeral 2b corresponds to the outside of the head insertion opening 7 opened by the retreating operation of the shutter plate 4a.

That is, the outer end of the cam projection 55b provided on the rotation arm 55 of the rotation actuator 51 is connected to the cam gear 74.
Since the stopper shaft 69 is located outside the rotating arm 55 while being in contact with the cam peripheral surface 74b of the
1 is locked. Further, the ramp 91 is pulled toward the spindle motor 12 by the spring force of the coil spring 95, and the ramp arm 92 is moved upward and downward by the suspension 58.
a, 58b, the projections 61a, 6b of the suspensions 58a, 58b as shown in FIG.
By 1b, the sliders 52a and 52b are spread in a direction away from each other. Since the lamp 91 is in contact with the stopper pin 98, the movement of the lamp 91 to the front side is prevented.

The cam pin 84 engaged with the cam groove 74c of the cam gear 74 is located at the outermost periphery of the cam groove 74c. Therefore, the eject lever 76 having the cam pin 84 at the end of one arm is in a posture as shown in FIG.
6a is separated from the pressure receiving portion 77b of the holder lock member 77 of the holder lock mechanism. The cartridge pressing pin 87 provided at the end of the eject arm 86 integrated with the eject lever 76 is used for the disc cartridge 1.
Is located on the outside rear.

(4-5) State during Loading of Hard Disk As shown in FIG. 20, when the cam gear 74 is slightly rotated clockwise by the drive of the drive motor 71, the rotation actuator 51 Power is ramp 91
Of the coil actuator 95, a biasing force in the counterclockwise direction acts on the rotary actuator 51. As a result, the cam projection 55b of the rotating arm 55 is
The rotation actuator 51 is rotated counterclockwise because it goes around the cam action end 74e provided at one end of 4b and enters the cam escape portion 74d.

As a result, the upper and lower suspensions 58a and 58b provided at the tip end on the turning side of the dog leg type rotary actuator 51 enter the head insertion opening 7 of the disk cartridge 1, and the upper and lower suspensions attached to the tip end thereof. Sliders 52a and 52b approach the outer periphery of the hard disk HD. At this time, since the cam pin 84 of the eject lever 76 is located at the outermost periphery of the cam groove 74c of the cam gear 74, the postures of the eject lever 76 and the eject arm 86 do not change.

In this case, the length from the rotation center O of the rotation arm 55 to the center of the sliders 52a and 52b (hereinafter referred to as “slider rotation radius”) is SR, and the distance from the rotation center O of the rotation arm 55 is SR. Convex portions 6 of suspensions 58a, 58b
Length to the center of 1a, 61b (hereinafter referred to as “projection turning radius”)
That. ) Is PR, the slider turning radius SR is set to be larger than the convex turning radius PR so that the sliders 52a and 52b do not contact the ramp arm 92 (S
R> PR). Therefore, since the sliders 52a and 52b do not interfere with the ramp arm 92 within the rotation range of the rotation actuator 51, it is possible to eliminate the possibility of the sliders 52a and 52b being damaged due to the contact with the ramp 91. . Moreover, the upper and lower suspensions 58
The inner ribs 58a ₁ and 58b ₁ are partially cut out to provide cutbacks on the a and 58b.
8a _1, 58a ₂ and 58b _1, 58b without the _second part further care, each suspension 58a, the strength of 58b can be set to appropriate reinforced by the ribs.

(4-6) Loading of Hard Disk Completed By rotation of the cam gear 74, the cam projection 55b of the rotation arm 55 is moved to the cam gear 7 as shown in FIGS.
4, the rotation control of the rotary actuator 51 by the cam gear 74 is released, and the automatic control by the voice coil motor including the drive coil 56 and the magnet 37 is started. .
Thus, the loading of the hard disk HD is completed, and the upper slider 52a faces the upper surface of the hard disk HD, and the lower slider 52b faces the lower surface.

As a result, the upper and lower sliders 52a, 52a, 5a
2b is slightly lifted from the surface of the hard disk HD, and the sliders 52a and 52b can move in the radial direction of the hard disk HD in the floating state. As a result, the magnetic head 8 provided on each of the sliders 52a and 52b moves on the information recording surface of the hard disk HD, and the magnetic head 8 reads out an information signal recorded in advance on the information recording surface to read the information. Reproduction is performed, or recording of information for newly writing an information signal on the information recording surface is performed.

In this case, the rotary actuator 51 of this embodiment is of a dog leg type, and the suspensions 58a, 58b and the mount plate 57 on the distal end side are provided.
Since a and 57b enter and exit in a direction substantially perpendicular to the head insertion port 7, the width of the head insertion port 7 can be minimized. Therefore, it is possible to reliably prevent the intrusion of dust or effectively suppress the intrusion by minimizing the size of the head insertion opening 7 into which the dust that may possibly enter the disc cartridge 1 is likely to enter. it can. Since the disk cartridge 1 has a structure in which the offset arc portion 6 is provided on the tip end side, the space in the mechanical chassis 17 can be more effectively used than in a conventional rectangular disk cartridge.

(4-7) Unloading state of the hard disk (during ejection of cartridge) After recording or reproduction of information or at the time of recording or reproduction, the cartridge is ejected to the control device by operating the eject operation button (not shown). When the command is instructed, the tip side of the rotating arm 55 is controlled by the speed control of the voice coil motor of the rotating actuator 51 so that the hard disk HD
23, and the suspensions 58a and 58b ride on the ramp arm 92 and unload as shown in FIGS. Thereafter, the drive motor 71 is driven to rotate in the reverse direction, and the cam gear 74 starts to rotate in the direction opposite to that during disk loading.

As a result, as shown in FIG. 24, when the cam gear 74 is rotated counterclockwise, the cam gear 7 is rotated.
4 comes into contact with the cam projection 55b of the rotating arm 55 in the counterclockwise direction.
Is rotated clockwise about the rotation shaft 54. As a result, the cam projection 55b is moved to the cam peripheral surface 7 of the cam gear 74.
4b, the rotation actuator 51 is moved to the position shown in FIG.
The posture changes to the initial posture shown in FIG. 4 (see FIG. 19). At the same time, the pressing portion 93 of the lamp 91 is pressed to the rear side by the counterclockwise rotation of the rotation actuator 51, so that the lamp 91 moves backward to the rear side against the urging force of the coil spring 95. , Locked in the unloading state.

In this case, the length from the rotation center O of the rotation arm 55 to the tip of the sliders 52a and 52b (hereinafter referred to as "arm length") is SL, and the rotation center O of the rotation arm 55 acts as a cam. Assuming that the length between the end portion 74e and the contact portion between the cam protrusion 55b (hereinafter referred to as “pressing length”) is PL, the rotating arm 55 is moved backward to move the slider 52.
When the a and 52b are positioned at the head retreat position, the pressing length PL from the operation position of the cam operation end portion 74e that presses the cam projection 55b to the rotation center O is one of the arm length SL.
It is longer than / 3. Therefore, the arm length SL
Can be rotated to push the arm 55 farther than 1/3, so that the enlargement ratio of the amount of displacement of the arm by the cam can be reduced, and the rotation can be controlled accurately. . Incidentally, in this type of conventional disk storage device, the pressing length is 1/5 to 1/1 / the arm length.
Since the arm side is greatly displaced by the minute displacement on the cam side, it is difficult to obtain the accuracy for the rotation control.

In the voice coil motor for controlling the rotation of the rotation arm 55 as described above, the driving coil 5
The torque is generated at a portion overlapping the magnet 37 of the drive coil 56, that is, at the left and right side edges 56a and 56b of the drive coil 56. Side edges 56a, 56b of the drive coil 56
Represents the north pole and the south pole of the magnet 37, as shown in FIG.
When located on the inside of the pole, a large torque is generated. However, when one of the side edges 56a, 56b is applied to the center line MC of the magnet 37 (the boundary between the magnetization of the N pole and the S pole), the torque is sharply increased. And the rotation control performance is adversely affected.

On the other hand, according to the present embodiment, FIG.
As shown in (1), when the sliders 52a and 52b are located on the outer periphery of the hard disk HD, neither of the side edges 56a and 56b of the drive coil 56 is in contact with the center line MC of the magnet 37. By transmitting the torque reliably, the rotating arm 55 can be rotated by a predetermined amount. And the drive coil 5
6 move without crossing the center line MC of the magnet 37, and as shown in FIG.
Even when the sliders 52a, 52b move to the innermost periphery of the hard disk HD, no torque reduction occurs because neither of the side edges 56a, 56b is on the center line MC. Therefore, the rotation actuator 5
According to (1), in an area where automatic control by the voice coil motor is necessary, the rotation of the rotation arm 55 can be controlled with high precision without causing torque reduction in the entire range.

At this time, when the state returns to the state of FIG. 19 through FIG. 20, or proceeds to the state of FIG. 24 through the state of FIG. 23, in either case, one side edge portion 56a of the drive coil 56 becomes the center. As shown in FIG.
As shown in FIG. 5, one side edge 56a moves to the same pole as the other side edge 56b beyond the center line MC,
When the 5 and the ramp 91 are completely retracted, the voice coil motor does not generate any torque. However, since the movement is performed by the cam of the cam gear 74, the above-mentioned torque reduction does not become a problem.

When the rotating arm 55 is retracted, the lamp 91 is retracted by the retracting operation of the rotating arm 55, and the lamp arm 92 is ejected from the head insertion port 7. In this case, since two linear guide shafts 94a and 94b supported in parallel with the mechanical chassis 17 are slidably inserted into the insertion holes 91b and 91c of the lamp 91, the two linear guide shafts 94a and 94b are connected to each other. Guided by lamp 9
1 linearly moves backward. Note that the retreating operation of the ramp 91 may be configured to move in an arc shape using two guide shafts as curved axes.

Next, the cam pin 8 of the eject lever 76 is
4 moves from the outermost peripheral portion to the innermost peripheral portion of the cam groove 74 c of the cam gear 74, so that the eject lever 76 moves to the fulcrum shaft 85.
Is rotated clockwise around the center. Thereby, on the one hand, the pressing portion 76a of the eject lever 76 comes into contact with the pressure receiving portion 77b of the holder locking member 77 of the holder locking mechanism, and the holder locking member 77 is turned counterclockwise against the spring force of the coil spring 88. Move.

As a result, the locking claw 77a of the holder lock member 77 is disengaged from the engaging pin 24 of the cartridge holder 16, and the locked state in which the cartridge holder 16 is held horizontally with respect to the mechanical chassis 17 is released. As a result, while the front side of the cartridge holder 16 is lifted by the spring force of the pop-up spring 78, the amount of the lift is such that the hook portion 79c is engaged with the small diameter portion 20a of the holder reinforcing shaft 20 provided on the cartridge holder 16. The pop-up is restricted by the pop-up suppressing plate 79, and as shown in FIGS. 2 and 4, pop-up of a predetermined amount or more is prevented and the initial state is restored. By appropriately changing the length of the hook portion 79c of the pop-up suppressing plate 79, the amount of tilt of the cartridge holder 16 can be arbitrarily set.

At the same time, when the eject arm 86 rotates in the same direction in conjunction with the eject lever 76, the cartridge pressing pin 87 provided at the tip thereof comes into contact with the offset arc portion 6 of the disc cartridge 1 from behind. . Then, the disc cartridge 1 urged toward the holding plates 16 d and 16 e of the cartridge holder 16 by the pair of left and right holding plate springs 25 is pushed forward by the pressing force of the eject arm 86. As a result, as shown in FIG. 25, the grip groove 2h side of the disk cartridge 1 protrudes from the cartridge insertion port 18 by a predetermined amount. Therefore, the disk cartridge 1 can be easily removed from the cartridge holder 16 by gripping and pulling out the grip groove 2h.

At this time, if the user attempts to prevent the ejecting operation by pressing the disc cartridge 1 by hand, for example, due to a failure of the apparatus, or a user, a large resistance force is applied to the eject arm 86 which is pushing the disc cartridge 1 out. However, since the eject arm 86 is formed of a plate-like spring material, the above-described resistance is absorbed by its elastic deformation. Accordingly, it is possible to prevent the occurrence of a failure of the apparatus due to an excessive ejection operation of the disk cartridge 1 and to ensure a smooth ejection operation. Further, since the pop-up operation of the cartridge holder 16 and the ejection operation of the disc cartridge 1 are performed by one ejecting member in which the ejecting lever 76 and the ejecting arm 86 are integrated, this kind of operation can be performed simply and reliably. And the reliability of the operation can be improved.

Next, an embodiment of a disk recording / reproducing apparatus according to a second embodiment as a disk storage apparatus of the present invention will be described with reference to FIGS. The second embodiment is applied to an elevator-type disk recording / reproducing apparatus in which a disk cartridge is inserted by a slot-in method and a disk holder for holding the inserted disk cartridge is moved up and down to load a disk. .

This disk recording / reproducing apparatus 200 has a disk driving mechanism, a shutter opening mechanism, an information recording / reproducing mechanism, and a disk loading mechanism as in the first embodiment.
0 and the information recording / reproducing mechanism 50 are the same as those of the first embodiment. This will be described in detail.

As shown in FIGS. 27 to 32, a disc loading mechanism 201 of the disc recording / reproducing apparatus 200 includes a cartridge holder 203 supported by a mechanical chassis 202 so as to be able to move up and down. A slide member 204 supported to be relatively movable in the front-rear direction and the up-down direction,
A holder lock member 205 for locking the cartridge holder 203 during loading is provided. The slide member 204 is configured to be capable of linearly moving forward and backward with respect to the mechanical chassis 202 in the front-rear direction.

The mechanical chassis 202 is formed of a flat housing having a U-shaped cross section opened on the upper surface and both front and rear surfaces, and a front panel 207 having a cartridge insertion slot 206 is attached to the front surface thereof. As shown in FIG. 26, a power button 208 for switching power on and off and an eject button 209 for ejecting the disk cartridge 1 are provided on the front surface of the front panel 207. The mechanical chassis 202 having such a configuration includes the first
A disk drive mechanism 30 and an information recording / reproducing mechanism 50 are provided in substantially the same manner as in the embodiment.

The cartridge holder 203 has an upper surface plate 203a having substantially the same size as the plane of the disc cartridge 1, a side surface plate 203b continuous on both left and right sides of the upper surface plate 203a, and a lower part of each side surface plate 203b. The disk cartridge 1 is held in a space surrounded by the holding plate 203c which is continuously bent inward, and an insertion portion 203d is set on the front surface thereof. A shutter opening mechanism 40 similar to that of the first embodiment is provided on one side plate 203b of the cartridge holder 203.

For this reason, the openings 23a and 23b are provided on the one side plate 203b at a predetermined distance in the front-rear direction, and a part between the openings 23a and 23b is bent up and down. A pair of pin support pieces 43a,
43b is provided. Then, both pin support pieces 43
A shutter opening lever 41 is interposed between a and 43b, and a shaft pin 44 penetrates the shutter opening lever 41, whereby the shutter opening lever 41 is swingably supported by the cartridge holder 203.

Further, a pair of left and right vertical guide pins 210 disposed at a middle part in the front-rear direction and two pairs of left and right cam pins 211 disposed at both ends in the front-rear direction are provided on both side plates 203b and 203c of the cartridge holder 203. Are provided so as to protrude outward. The pair of vertical guide pins 210 are slidably engaged with vertical guide grooves 212 provided in the mechanical chassis 202 and extending in the vertical direction. Then, the cartridge holder 203
Stoppers 22a and 22b for preventing the disc cartridge 1 from being inserted by a predetermined amount or more are provided at the rear ends of the side plates 203b and 203c.

A slide member 204 is mounted so as to be relatively movable so as to straddle the cartridge holder 203 from above. The slide member 204 has an upper frame portion 204a facing the upper surface of the cartridge holder 203, and side surface portions 204b and 204c continuous with both side portions of the upper frame portion 204a and facing the side surfaces of the cartridge holder 203. The eject button 209 is provided at the front of the upper frame 204a.
Is provided, and a horizontal guide pin 213 protruding outward is provided on one side surface 204b. The horizontal guide pin 213 is slidably engaged with a horizontal guide groove 214 provided in the mechanical chassis 202 and extending in the front-rear direction, whereby the linearity of the slide member 204 with respect to the mechanical chassis 202 in the front-rear direction is improved. Is secured.

The cartridge holder 203 and the slide member 204 are relatively movable in directions perpendicular to each other via a holder elevating mechanism 220. The holder elevating mechanism 220 restricts the movement of the cartridge holder 203 in the horizontal direction and moves up and down only in the vertical direction. The holder elevating mechanism 220 restricts the movement of the slide member 204 in the vertical direction and moves only in the horizontal direction. It comprises horizontal operation means for operating, and direction changing means for converting the horizontal operation of the slide member 204 into an elevating operation of the cartridge holder 203.

The lifting operation means of the holder lifting mechanism 220 includes:
The horizontal operation means is constituted by a combination of the horizontal guide pin 213 and the horizontal guide groove 214. Then, the holder elevating mechanism 22
The zero-direction changing means is constituted by a combination of a cam pin 211 provided on the cartridge holder 203 and a cam portion 221 with which the cam pin 211 is slidably engaged. The cam portions 221 correspond to the cam pins 211, and the both side surfaces 204b, 2b of the slide member 204.
04c, the inclined guide groove 221a formed to be inclined at approximately 45 degrees, and the inclined guide groove 221a.
1a, one horizontal support groove 221b formed continuously
And

The horizontal support groove 221b of the cam portion 221 is formed to extend in the front-rear direction on the side of the upper frame portion 204a of each of the side surface portions 204b and 204c of the slide member 204, and the rear end of the horizontal support groove 221b is formed. An inclined guide groove 221a extends obliquely downward to be continuous with the portion, and is opened at the lower end of the side surface portions 204b and 204c. The direction changing means is provided at a total of four places, two places before and after both side plates 203b and 203c of the cartridge holder 203.

Further, the upper frame portion 204 of the slide member 204
A long hole 222 extending in the front-rear direction is provided on both sides of “a”, and a coil spring 223 is arranged in the long hole 222. A front end of the coil spring 223 is locked by a spring receiving piece 224 provided upright on the cartridge holder 203, and a rear end of the coil spring 223 is
The slide member 204 is always urged toward the front side, that is, toward the cartridge insertion port 206 by the spring force of the coil spring 223. The forward movement of the slide member 204 is restricted by a holder lock member 205 rotatably attached to a rear portion of the cartridge holder 203.

As shown in FIGS. 27 and 29, the holder lock member 205 has a substantially fan-shaped overall shape.
A pivotal portion of the fan is pivotally supported by the upper plate 203a of the cartridge holder 203 by a rotating shaft 225, and is attached rotatably with the tip of the fan facing the back. The fan-shaped portion of the holder lock member 205 is provided on one side for detecting the inserted state of the disk cartridge 1 and on the other side for holding the state in which the slide member 204 is retracted backward by a predetermined amount. Locking part 2
05b, a lock portion 205c for holding the locked state of the slide member 204 provided between the pressing portion 205b and the pressure receiving portion 205a, and a torsion spring 226 for urging the holder lock member 205 to be pulled inward. A spring receiving portion 205d to which one spring piece is locked. Then, the coil portion of the torsion spring 226 is engaged with a spring support piece 227a erected on the upper plate 203a of the cartridge holder 203, and the other spring piece is similarly
03a is locked to a spring receiving piece 227b standing upright.

The pressure receiving portion 20 of the holder lock member 205
5a is configured to be located on the movement trajectory of the disk cartridge 1 in the disk cartridge mounting portion.
A is provided with a notch 228 extending in an arc shape to allow the pressure receiving portion 205a to enter. That is, when the holder lock member 205 is pulled inward by the spring force of the torsion spring 226, the pressure receiving portion 205
a is largely inserted into the inside of the notch 228 so as to come into contact with the offset arc portion 6 immediately before the insertion of the disk cartridge 1 is completed.

Further, the locking portion 2 of the holder lock member 205
The leading edge of 05b is formed in an arc shape, and the lock portion 205c is formed by providing a step by lowering the inside of the locking portion 205b by one step. The slide member 204 is provided with a stopper piece 229 corresponding to the locking portion 205b and the locking portion 205c. The stopper piece 229 is for positioning the slide member 204, and as shown in FIG.
The slide member 204 is in a state of being retracted to the back side when 29 is climbed on the locking portion 205b. As shown in FIG. 29, when the stopper piece 229 gets over the locking portion 205b and enters the lock portion 205c, the slide member 204 It is in a state of moving forward.

The operation of the disk recording / reproducing apparatus 200 having such a configuration is as follows, for example.
First, as shown in FIGS. 26 to 28, the offset arc portion 6 side of the disc cartridge 1 is made to face the cartridge insertion port 206 of the disc recording / reproducing apparatus 200, and the disc cartridge 1 is pressed to put the disc cartridge 1 into the cartridge insertion port 2.
06. At this time, when the disk cartridge 1 is inserted to a predetermined position, the offset arc portion 6 of the disk cartridge 1 comes into contact with the pressure receiving portion 205a of the holder lock member 205, but the spring force of the torsion spring 226 for urging the inside. When the disc cartridge 1 is further inserted, the holder lock member 205 is pressed by the pressing force of the disc cartridge 1.
Rotates clockwise about the rotation shaft 225 in FIG. When the disc cartridge 1 is completely inserted into the disc recording / reproducing apparatus 200, the holder lock member 205 changes to the state shown in FIG.

In this case, the rotation of the holder lock member 205 causes the outer peripheral edge of the locking portion 205b to move to the slide member 204.
Although the sliding member 204 slides on the inner peripheral surface of the stopper piece 229, the radius of curvature is constant, so that the slide member 204 does not move forward even by the spring force of the coil spring 223, and the initial position is maintained. Thereafter, when the disk cartridge 1 is completely inserted to the predetermined position, the locking portion 205b
Reaches the outer edge of the stopper piece 229, and the locked state of the slide member 204 is released.

At this time, one cartridge holder 203 connected by the coil spring 223 is supported by the mechanical chassis 202 so as to be movable only in the vertical direction, while the other slide member 204 is
2, only the slide member 204 is moved forward by the spring force of the coil spring 223, and the cartridge holder 20 is moved.
The disc cartridge 1 held by the cartridge 3 is held at a position at the time of mounting. This mounting position is the position of the mechanical chassis 20.
2 is directly above the spindle motor 12 of the disk drive mechanism 30 disposed on the upper side.

In this case, when the slide member 204 moves horizontally forward, the horizontal support grooves 2
The cam pin 211 located in the inside 21b enters the inclined guide groove 221a and is guided downward by the inclined guide groove 221a to be pushed down. At this time, the cartridge holder 203 is connected to the slide member 204 by a direction changing mechanism (composed of a cam pin 211 and a cam portion 221) provided at four positions thereof so as to be relatively movable and horizontally supported. While the four direction change mechanisms operate in the same manner at the same time, the cartridge holder 203
Is supported by the vertical guide groove 212 of the main chassis 202 so as to be movable only in the vertical direction. The vertical guide pin 210 is guided by the vertical guide groove 212 and moves downward, so that the cartridge holder 203 is pushed down just below. .

As a result, the cartridge holder 203
Moves from the upper position when the disc cartridge 1 is inserted as shown in FIG. 31 to the lower position where the loading state is shown in FIG. As a result, the spindle motor 12 is inserted into the center core hole 9 of the disc cartridge 1 opened by the rotation of the shutter opening lever 41 of the shutter opening mechanism 40.
Is inserted, the center core 11 is attracted by the magnet embedded in the turntable, the hard disk HD is mounted on the spindle motor 12, and the loading operation is completed.

Thereafter, the spindle motor 12 of the disk drive mechanism 30 is driven to rotate the hard disk HD, and the rotary actuator 51 of the information recording / reproducing mechanism 50 is driven to start automatic control by the voice coil motor. By reading or writing information signals with the magnetic heads 8 of the upper and lower sliders 52a and 52b opposed to the upper and lower information recording surfaces, information is recorded or reproduced in the same manner as in the first embodiment.

To eject the disc cartridge 1 after the recording or reproducing operation of this information is completed, the eject button 209 is pressed. In this case, the coil spring 22
When the eject button 209 is pushed in a predetermined amount against the urging force of the eject button 3, the eject button 209 is
Since the slide member 204 is attached to the slide member 204d and is configured integrally with the slide member 204, the slide member 204 moves backward. At this time, the stopper piece 229 of the slide member 204 engaged with the lock portion 205c of the holder lock member 205 moves rearward while being guided by the inner edge of the lock portion 205b.

At this time, the operation opposite to the above-mentioned loading operation is performed between the cartridge holder 203 and the slide member 204, and the slide member 204 moves horizontally rearward while being connected via the holder elevating mechanism 220. The moved cartridge holder 203 is guided by the vertical guide groove 212 of the mechanical chassis 202, moves up to the upper position, and changes from the state shown in FIG. 32 to the state shown in FIG. When the stopper piece 229 of the slide member 204 reaches the tip of the locking portion 205b, the lock of the holder lock member 205 is released.

As a result, the holder lock member 205 is rotated inward by the spring force of the torsion spring 226, that is, counterclockwise in FIG.
Pressure receiving portion 205a enters into the notch 228 of the cartridge holder 203, and comes into contact with the offset arc portion 6 of the disk cartridge 1. As a result, the spring force of the torsion spring 226 is applied to the disk cartridge 1 from the pressure receiving portion 205a, whereby the disk cartridge 1 is pushed forward, and the end on the grip side of the disk cartridge 1 protrudes from the cartridge insertion port 206. Is done. The disc cartridge 1 can be taken out of the disc recording / reproducing apparatus 200 by pulling out the disc cartridge 1 while holding the projecting end.

With the disk recording / reproducing apparatus 200 of the second embodiment having such a configuration, the same effects as those of the first embodiment can be obtained.

As described above, the present invention is not limited to the above embodiment. For example, in the above embodiment, recording and / or reproduction of information is performed on the upper and lower surfaces of the hard disk by the upper and lower magnetic heads. Although the device for performing the information has been described, the present invention can be applied to a device for recording and / or reproducing information only on one of the upper and lower surfaces of the hard disk. Furthermore, in the above-described embodiment, an example is described in which the present invention is applied to a disk recording / reproducing apparatus capable of reproducing information recorded in advance on the hard disk HD and recording new information. Can also be applied to a disk storage device capable of performing the following. As described above, the present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist thereof.

[0147]

As described above, according to the disk storage device of the present invention, the read / write head is movably supported outside the disk cartridge loading section, and the cartridge holder for holding the disk cartridge is loaded with the disk cartridge. The disk drive mechanism that reads / writes information using a disk-shaped recording medium rotatably housed in a disk cartridge can be made thinner because the disk drive mechanism is tiltably mounted to the unit. Therefore, it is possible to obtain an effect that the device can be made thinner and lighter while preventing the strength from decreasing.

Further, a shutter opening mechanism provided on the cartridge holder for holding the disk cartridge performs a seesaw operation, and engages with a shutter operating portion provided at a deep portion of the side groove at the rear of the cartridge to open and close the shutter. Since the lever itself is formed with an appropriate elasticity, it absorbs the gap (play) between the cartridge holder and the disc cartridge and absorbs the gap, so that the shutter can be reliably opened. can get.

[Brief description of the drawings]

FIG. 1 is a pop-up type disk recording / reproducing apparatus showing a first embodiment of a disk storage device of the present invention, and is an external perspective view showing a disk drive mechanism, an information recording / reproducing mechanism, and a disk loading mechanism housed in a mechanical chassis. It is.

FIG. 2 is a perspective view of the disk recording / reproducing apparatus according to the first embodiment of the present invention in a state where the mechanical chassis and the cartridge holder are combined and the cartridge holder is popped up.

FIG. 3 is an exploded perspective view showing a main part of a cartridge holder of the disk recording / reproducing apparatus shown in FIG. 2 in an enlarged manner.

FIG. 4 is a sectional view of the disk recording / reproducing apparatus according to the first embodiment of the present invention in a state where a cartridge holder is popped up.

FIG. 5 is a sectional view showing a state in which the cartridge holder of the disk recording / reproducing apparatus according to the first embodiment of the present invention is housed in a mechanical chassis.

FIG. 6 is an exploded perspective view showing an enlarged main part of an internal structure of a mechanical chassis of the disk recording / reproducing apparatus shown in FIG. 1;

FIG. 7 is an explanatory diagram showing a main part of a disc loading mechanism of the disc recording / reproducing apparatus shown in FIG. 1 and showing a relationship between a cam gear and a rotating arm.

FIG. 8 is an explanatory diagram showing a main part of a disc loading mechanism of the disc recording / reproducing apparatus shown in FIG. 1, and showing a relationship between a cam gear and a cam pin.

9 is an explanatory diagram showing a main part of an information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG. 1, and showing a cross section of a relationship between a rotary actuator and a ramp.

FIG. 10 is an end view taken along the line XX of the rotary actuator shown in FIG. 9;

11 is a sectional view of a rotary actuator of the disk recording / reproducing apparatus shown in FIG.

FIG. 12 is a perspective view showing a first embodiment of a slider of the information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

FIG. 13 is a perspective view showing a second embodiment of the slider of the information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

14 is a perspective view showing a third embodiment of the slider of the information recording / reproducing mechanism of the disk recording / reproducing apparatus shown in FIG.

FIG. 15 is a partially cutaway perspective view showing a disk cartridge according to the disk recording / reproducing apparatus of the present invention.

16 is a plan view showing an initial state of insertion of a disk cartridge of the disk recording / reproducing apparatus shown in FIG. 1;

17 is a plan view showing a state before a shutter of a disk cartridge of the disk recording / reproducing apparatus shown in FIG. 1 is opened.

18 is a plan view showing a state after a shutter of a disk cartridge of the disk recording / reproducing apparatus shown in FIG. 1 is opened.

19 is a plan view showing a state before loading of a hard disk of the disk recording / reproducing apparatus shown in FIG. 1;

FIG. 20 is an explanatory diagram of a main part of a section of the disk recording / reproducing apparatus shown in FIG.

FIG. 21 is a plan view showing a completed loading state of a hard disk of the disk recording / reproducing apparatus shown in FIG. 1;

22 is an explanatory diagram showing a cross section of a part of the loading state of the hard disk of the disk recording and reproducing apparatus shown in FIG. 1;

FIG. 23 is a plan view showing an initial unloading state of the hard disk of the disk recording / reproducing apparatus shown in FIG. 1;

FIG. 24 is an explanatory view of a relevant part showing in section a state of unloading of the hard disk of the disk recording / reproducing apparatus shown in FIG. 1;

25 is a plan view showing an unloaded state of the hard disk of the disk recording / reproducing apparatus shown in FIG.

FIG. 26 is an external perspective view showing a slot-in type disk recording / reproducing apparatus showing a second embodiment of the disk storage device of the present invention.

FIG. 27 is a plan view of a disk recording / reproducing apparatus according to a second embodiment of the present invention, showing a state before a disk cartridge is mounted.

FIG. 28 is a side view of a disk recording and reproducing apparatus according to a second embodiment of the present invention, showing a state before a disk cartridge is mounted.

FIG. 29 is a plan view of a disk recording / reproducing apparatus according to a second embodiment of the present invention, showing a state after a disk cartridge is mounted.

FIG. 30 is a side view of the disk recording / reproducing apparatus according to the second embodiment of the present invention, in which a part of the disk recording / reproducing apparatus after the disk cartridge is mounted is sectioned.

FIG. 31 is a sectional view showing a disk recording / reproducing apparatus according to a second embodiment of the present invention, showing a state before loading of a hard disk;

FIG. 32 is a sectional view showing a disk recording / reproducing apparatus according to a second embodiment of the present invention, showing a completed loading state of a hard disk.

FIG. 33 is a perspective view showing an example of a conventional disk recording / reproducing apparatus.

FIG. 34 is a plan view showing a state in which a disk cartridge is inserted into an apparatus main body of a conventional disk recording / reproducing apparatus.

FIG. 35 is an exploded perspective view showing a conventional disk cartridge.

[Explanation of symbols]

1 disk cartridge, 4 shutter member, 4
a shutter plate, 4b core hole opening / closing plate, 4f operation claw, 5 shutter spring, 6 offset arc portion,
7 head insertion slot, 8 magnetic head, 10 guide groove, 12 spindle motor, 16 cartridge holder, 17 mechanical chassis, 18 cartridge insertion slot, 30 disk drive mechanism, 40 shutter opening mechanism, 41 shutter opening lever, 50 information recording / reproducing mechanism 51 rotating actuator, 52
a, 52b slider, 55 rotating arm, 57
a, 57b mount plate, 58a, 58b suspension, 70 disc loading mechanism,
74 cam gear, 76 eject lever, 77 holder lock member, 84 cam pin, 86 eject arm, 91 lamp, 92 lamp arm, HD
Hard disk (disk-shaped recording medium)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazuo Takahashi, 6-7-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (72) Inventor Eiji Oshima 6-35, Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation

Claims (7)

[Claims] 1. A disk cartridge in which a disk-shaped information recording medium whose both sides are readable / writable is rotatably stored, and is removably loaded into a disk cartridge loading section provided with a rotation drive mechanism. Read from the opening that is opened and closed by the shutter
A disk storage device in which a read head is inserted to read / write information in accordance with movement on a recording surface of the information recording medium which is driven to rotate, wherein the disk cartridge is provided in the disk cartridge loading section, A disk storage device comprising: a cartridge holder for inserting and holding a shutter opening means for opening the shutter by operating the cartridge body as a trigger when the disk cartridge is inserted. 2. The shutter opening means comprises a balance arm member which is pivotally supported by one side surface of the cartridge holder and moves in a seesaw direction inward and outward. One end of the balance arm member is connected to an opening / closing operation section of the shutter. 2. The disk storage device according to claim 1, wherein the working end engages with the disk cartridge, and the other end is a scanning end that slides on a side surface of the disk cartridge. 3. Both ends of the balance-shaped arm member are inserted into guide grooves formed on one side surface of the disk cartridge in the front-rear direction, and the copying end slides on the inner surface of the guide groove. 2. The disk storage device according to claim 1, wherein the guide groove is inserted into a portion where the opening / closing operation portion of the shutter faces. 4. The guide groove is formed such that a portion where the copying end of the balance arm member is slidably inserted is wide and shallow,
The opening / closing operation portion of the shutter faces, and the portion into which the working end is inserted is formed to be narrow and deep, and holds the disk cartridge in which both ends of the balance arm member are inserted. 4. The disk storage device according to claim 3, wherein: 5. The balance-shaped arm member is formed with one end of an elongated plate body as a copying end and the other end as a working end, and the copying end is arranged so that the plane of the plate body is parallel to the axis of the shaft support. 4. The disk storage device according to claim 3, wherein the working end has high rigidity by making a plane of the plate body orthogonal to an axis of the shaft supporting portion. 6. The disk storage device according to claim 3, wherein the balance arm member has elasticity so as to follow a change in the guide groove. 7. The balance arm member is configured to cooperate with an urging member disposed on a shaft support portion of the cartridge holder and the elasticity of the balance arm member itself, thereby allowing the disk cartridge to move relative to the cartridge holder. 6. The disk storage device according to claim 5, wherein play in the vertical and horizontal directions can be absorbed.