JPH11134828A - Disk drive apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control movement of carriage due to impact by operating a head carriage locking means in conjunction with sliding of cartridge holder lifting manipulation plate and then locking such operation by pressing the head carriage to a stopper. SOLUTION: When a cam 66 is rotated by an eject motor 65 under the condition that a cartridge holder lifting manipulation plate 4 is slid in the front direction, a pin engagement portion 68 is pressed by a pin 67 and the cartridge holder lifting manipulation plate 4 is slid to the rear direction against a spring force of a tensile coil spring. Thereby, after the cartridge holder 3 is lifted up to the unloading position, locking is made again by a trigger lever. With the head carriage locking means interlocking with the sliding of the cartridge holder lifting manipulation plate 4, the head carriage 10 is pressed toward the stopper in the external circumference side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive for recording or reproducing data on or from a disk-shaped recording medium such as a floppy disk.

[0002]

2. Description of the Related Art A disk drive device for recording or reproducing data on or from a floppy disk includes a mechanical chassis, a cartridge holder mounted on the mechanical chassis so as to be able to move up and down, and a slidable mounted on the mechanical chassis. The cartridge holder is raised to the unloading position by sliding in the direction
A cartridge holder elevating operation plate which is lowered to the loading position by being slid in the other direction; and a spindle for mounting a disk-shaped recording medium of a disk cartridge housed in the cartridge holder which has been lowered by sliding the cartridge holder elevating operation plate. A head arm having a head chip for transmitting and receiving signals to and from the disk-shaped recording medium mounted on the spindle, and moving the head arm and the head chip in a radial direction of the disk-shaped recording medium mounted on the spindle. A head carriage.

When a disk cartridge is inserted into the cartridge holder, the trigger lever of the cartridge holder elevating operation plate is pressed by the disk cartridge, and the lock of the cartridge holder elevating operation plate is released. The plate is slid, the cartridge holder is lowered, and the disk-shaped recording medium of the disk cartridge is mounted on the spindle.

[0004] Recording or reproduction is performed while the head chip is moved in the radial direction of the disk-shaped recording medium by the head carriage.

[0005] The head carriage is driven by using a lead screw or a VCM (voice coil motor).

[0006]

By the way, in the above-mentioned disk drive device, particularly in a disk drive device using a VCM to drive the head carriage, when the power supply to the VCM is stopped, the head carriage is moved to the slide guide shaft. Is slidable along. Therefore, in a non-use state of the disk drive device in which the power supply to the VCM is stopped (a state in which the cartridge holder is raised to the unloading position and no disk cartridge is stored in the cartridge holder), If a strong shock is applied to the device or the disk drive device is tilted,
There has been a problem that the head carriage may be hit against the innermost or outermost stopper to damage the head carriage or the head chip.

The present invention solves the above-mentioned conventional problems, and presses the head carriage against a stopper in a non-use state of the disk drive device in which the cartridge holder is raised to the unloading position. It is possible to prevent the slide from occurring.

[0008]

SUMMARY OF THE INVENTION The present invention provides a mechanical chassis, a cartridge holder movably mounted on the mechanical chassis, and a slidable mounted on the mechanical chassis. The cartridge holder is moved up to the unloading position and is moved down to the loading position by sliding in the other direction, and the cartridge holder is housed in the cartridge holder lowered by sliding the cartridge holder up / down operation plate. A spindle for mounting a disk-shaped recording medium of a disk cartridge, a head arm on which a head chip for transmitting / receiving signals to / from the disk-shaped recording medium mounted on the spindle is mounted, and the head arm and the head chip mounted on the spindle. And a head carriage for moving the disk-shaped recording medium in a radial direction of the disk-shaped recording medium mounted on the disk drive device, when the cartridge holder elevating operation plate slides in a direction to raise the cartridge holder to the unloading position, By providing head carriage locking means for locking the head carriage by pressing the stopper against the stopper in conjunction with the slide of the cartridge holder elevating operation plate, the cartridge holder elevating operation plate is slid in the cartridge holder unloading direction after recording or reproduction is completed. Then, in conjunction with the sliding of the operation plate, the head carriage locking means is operated, and the head carriage is pressed against a stopper to be automatically locked.

[0009]

FIG. 1 is a plan view of a disk drive device 1 and a disk cartridge 101, and FIGS.
Is a side view of the disk drive device 1, and FIGS. 4 and 5 are plan views of the disk drive device corresponding to the side views of FIGS.

Before describing the disk drive 1, the disk cartridge 101 will be briefly described.

The disk cartridge 201 includes a disk-shaped recording medium 202 and the disk-shaped recording medium 202.
(Shell) 203 rotatably accommodated
And a shutter 204 slidably mounted on the cartridge 203 for opening and closing a recording / reproducing opening 203 a provided on the upper and lower surfaces of the cartridge 203.
And a torsion coil spring 205 for urging the shutter 204 to a position to close the opening 203a.

The disk drive device 1 includes a mechanical chassis 2, a cartridge holder 3 mounted on the mechanical chassis 2 so as to be able to move up and down, and a slidable mounted on the mechanical chassis 2 so as to move in one direction (cartridge insertion slot). 2, the cartridge holder 3 is raised to the unloading position as shown in FIG. 2, and is moved in the other direction (the front panel FP direction, hereinafter referred to as the front direction). 3) to move the cartridge holder 3 down to the loading position, as shown in FIG. 3, and into the cartridge holder 3 lowered by sliding the cartridge holder up / down operation plate 4. The stored disc A spindle (motor) 5 on which the disk-shaped recording medium 202 of the cartridge 201 is mounted (chucked), and an upper head chip 6 descending to a recording or reproducing position on the upper surface side of the disk-shaped recording medium 202 mounted on the spindle 5 An upper head arm (suspension) 7 attached to one end and a lower head arm 9 attached to one end with a lower head chip 8 rising to a recording or reproducing position on the lower surface side of the disk-shaped recording medium 202.
(In FIG. 1, the lower head chip 8 and the lower head arm 9 are arranged so as to overlap substantially directly below the upper head chip 6 and the upper head arm 7).
A head carriage 10 to which the other ends of the upper and lower head arms 7 and 9 are attached;
And a VCM (voice coil motor) 11 for moving the upper and lower head chips 6, 8 attached thereto in the radial direction of the disk-shaped recording medium 202, and the cartridge holder lifting / lowering operation plate 4 comprising the cartridge holder 3 Carriage sliding means for pushing the head carriage 10 against a stopper (not shown) on the outer peripheral side in conjunction with the cartridge holder elevating operation plate 5 when the head carriage 10 is slid in a direction (rear direction) for raising the cartridge to the unloading position. 101 is provided.

As shown in FIGS. 2 and 3, the cartridge holder 3 is provided with an elevation guide projection 3a provided at the center of the left and right sides, and an elevation guide groove 2a provided on the left and right sides of the mechanical chassis 2. Is attached to the mechanical chassis 2 so as to be able to move up and down in the vertical direction.

A pair of cylindrical projections 3b, 3b are provided on both left and right sides of the cartridge holder 3 around the elevation guide projection 3a. The protrusions 3b, 3b are formed by bending the left and right sides of the cartridge holder lifting / lowering operation plate 4 to be described in detail upward at substantially right angles at right angles.
When the cartridge holder lifting / lowering operation plate 4 is inserted into the inclined lifting / lowering operation grooves 4b, 4b provided in the 4a and is slid in the rear direction, the inclined lifting / lowering operation groove 4b as shown in FIG. , 4b, the cylindrical projections 3b, 3b are pushed up to the upper ends of the lifting operation grooves 4b, 4b, and the cartridge holder 3 is raised,
It is designed to be held at the unloading position.

When the cartridge holder elevating operation plate 4 is slid in the front direction, as shown in FIG. 3, the inclined elevating operation grooves 4b, 4b cause
The cylindrical projections 3b, 3b are connected to the elevation operation grooves 4b, 4b.
The cartridge holder 3 is pushed down to the lower end of the cartridge b, and is held down at the loading position.

As shown in FIG. 1, a shutter opening member 61 is provided on the upper surface side of the cartridge holder 3. When the disk cartridge 201 is inserted into the cartridge holder 3, the shutter opening member 61 The distal end portion is configured to abut one end portion 204a of the shutter 204 of the disk cartridge 201.

The shutter opening member 61 rotates around a shaft 62 at one end while rotating the shutter 204.
Is slid against the spring force of the torsion coil spring 205 to open the recording / reproducing opening 203a.

The shutter opening member 61 is provided with a trigger lever 63 for locking and unlocking the cartridge holder lifting / lowering operation plate 4. The shutter opening member 61 is connected to the recording / reproducing opening 20.
When the trigger lever 63 is turned to the position to open, the engagement (lock) between the trigger lever 63 and the engaging portion 64 provided on the cartridge holder elevating operation plate 4 is released, and the cartridge holder elevating operation plate is released. 4 is in a state where it can slide in the front direction.

The above-mentioned cartridge holder raising / lowering operation plate 4
Are slidably mounted on the upper surface of the mechanical chassis 2, and both sides in the sliding direction are bent upward at substantially right angles to form left and right side plates 4a, 4a.
Are integrally formed.

Left and right side plates 4a, 4a of the cartridge holder raising / lowering operation plate 4 are disposed between the mechanical chassis 2 and the cartridge holder 3, and are provided on both right and left side surfaces of the cartridge holder 3. The projections 3b, 3b are introduced into the inclined lifting operation grooves 4b, 4b.

The above-mentioned cartridge holder raising / lowering operation plate 4
Is applied with a spring force of a tension coil spring (not shown) to slide the cartridge holder up / down operation plate 4 to a loading position in a front direction. When the lock by the trigger lever 63 is released, the cartridge holder 3 shown in FIG. 2 is lifted up, and is slid in the front direction by the spring force of the coil spring as shown in FIG. The cartridge holder 4 is lowered to the loading position.

When the cam 66 is rotated by the eject motor 65 in a state where the cartridge holder elevating operation plate 4 is slid in the front direction shown in FIG. The mating portion 68 is pressed and slid rearward against the spring force of the tension coil spring to raise the cartridge holder 3 to the unloading position, and then locked again by the trigger lever 63. It has become.

When the cartridge holder lifting / lowering operation plate 4 slides in the rear direction to raise the cartridge holder 3 to the unloading position, the head carriage lock means 101 interlocked with the slide of the cartridge holder lifting / lowering operation plate 4 By
The head carriage 10 is pressed against a stopper on the outer peripheral side.

As shown in FIGS. 8 and 9, the head carriage locking means 101 includes a rotating lever 103 attached to the mechanical chassis 2 so that one end can be rotated by a shaft 102, and a rotating lever 103. An interlocking mechanism 104 which is connected to the cartridge holder elevating operation plate 4 and interlocks with the slide of the cartridge holder elevating operation plate 4 to turn the turning lever 103; When the rotating lever 103 is rotated in the head carriage locking direction by the interlocking mechanism 104, the elastic member 105 contacts the one side of the VCM 11 and presses the head carriage 10 against the stopper on the outer peripheral side. Have.

The shaft 102 is provided on the lower surface at one end of the rotating lever 103, and is fitted into a bearing hole provided in the mechanical chassis 2 so that one end of the rotating lever 103 is attached to the mechanical chassis 2. To be rotatable.

The interlocking mechanism 104 is provided on an elongated hole 106 provided in the cartridge holder raising / lowering operation plate 4 and on the upper surface of a substantially central portion of the rotating lever 103.
A pin 107 is inserted into the elongated hole 106.

When the cartridge holder lifting / lowering operation plate 4 slides in the rear direction, the interlocking mechanism 104 pivots the rotating lever 103 clockwise about the shaft 102 as shown in FIG. Rotate the elastic member 1
The head carriage 10 is pressed against a stopper on the outer peripheral side by contacting the tip of the cartridge 05 with one side surface of the coil portion 11a of the VCM 11, and the cartridge holder lifting / lowering operation plate 4 slides in the front direction. 5, the rotating lever 103 is rotated counterclockwise about the shaft 102 to rotate the elastic member 105 and the rotating lever 103, as shown in FIG.
Escapes to a position where it does not come into contact with the coil portion 11a of the VCM 11 or the like.

As the elastic member 105, a torsion coil spring is used. As shown in FIGS. 6 and 7,
The elastic member 105 made of the torsion coil spring has a coil portion 105a attached to a shaft 108 provided on the upper surface on the free end side of the rotating lever 103, and the first arm portion 105b on one end side has the above-mentioned structure. Rotating lever 103
The second arm 105c on the other end is locked to a first spring locking portion 109 provided on the upper surface of the rotating lever 103. Locked. Then, as shown in FIG. 8, the tip of the second arm 105c is connected to the VCM.
The second arm portion 105c abuts one side surface of the coil portion 11a of the VCM 11, and presses the head carriage 10 against a stopper on the outer peripheral side via the coil portion 11a of the VCM 11 while bending.

A head carriage contact portion 111 is formed at the tip of the rotating lever 103 by utilizing a part of the second spring locking portion 110.
Then, as shown in FIG. 9, the head carriage contact portion 111 is in a state in which the second arm portion 105c of the torsion coil spring presses one side surface of the coil portion 11a of the VCM 11, and The head carriage 1 may be subjected to a strong shock or the like.
When the coil portion 11a of the VCM 11 slides by a predetermined amount while bending the second arm portion 105c, the coil portion 11a of the VCM 11 comes into contact with the coil portion 11a of the VCM 11 to prevent the head carriage 10 from sliding further. It has become.

The upper head arm 7 is bent downward at a gentle gradient, and when the cartridge holder 3 is at the loading position, the upper surface of the disk-shaped recording medium 202 chucked by the spindle motor 5 is removed. The upper surface can be contacted.

The upper head arm 7 is provided with a lift pin 12 which abuts on an upper head arm contact member 22 of a head arm movement control means 21 which will be described later, on the lower surface side of the central portion in the longitudinal direction.
And a holder engaging arm 13 that engages with the upper surface of the cartridge holder 3 on the upper surface side.

When the cartridge holder 3 is at the unloading position, the upper head arm 7 moves upward through the upper surface of the cartridge holder 3 and the holder engaging arm 13 as shown in FIG. The upper head chip 6 is bent upward so as not to hinder the insertion of the disk cartridge 201 into the cartridge holder 3.

Similarly to the upper head arm 7, the lower head arm 9 is also formed in a slender isosceles triangular shape by a leaf spring, and the lower head chip 8 is attached to the upper surface on the vertex side, and the lower side is The head carriage 10
Mounted on

The lower head arm 9 is bent upward at a gentle upward gradient, as shown in FIG.
As shown in FIG. 5, when the cartridge holder 3 is at the loading position, the cartridge holder 3 can come into contact with the lower surface of the disk-shaped recording medium 202 chucked by the spindle 5.

Similarly to the upper head arm 7, the upper head arm 9 is provided with a lift pin 14 which abuts on an upper head arm abutting member 22 of a head arm movement control means 21 which will be described later, on the lower surface side of the central portion in the longitudinal direction. ing.

In the disk drive device 1, the cartridge holder 3 is lowered from the unloading position to the loading position, and the disk-shaped recording medium 202 of the disk cartridge 201 inserted in the cartridge holder 3 is chucked to the spindle 5. A head arm movement control means 21 for preventing the upper and lower head chips 6 and 8 from coming into contact with the upper and lower surfaces of the disk-shaped recording medium 202 when the disk-shaped recording medium 202 is king.

As shown in FIG. 11, the head arm movement control means 21 comes into contact with the lift pins 12 of the upper head arm 7 which has been lowered following the lowering of the cartridge holder 3, and Of the disk-shaped recording medium 202 in which the upper head chip 6 is chucked by the upper spindle 5.
The upper head arm contact member 22 for preventing contact with the upper surface of the lower head arm 9 and the lift pin 14 of the lower head arm 9 are contacted to deflect the lower head arm 9 downward.
A lower head arm contact member 23 for preventing the lower head chip 8 from contacting the lower surface of the disk-shaped recording medium 202 chucked by the spindle motor 5;
A head arm contact member drive for moving the upper and lower head arm contact members 22 and 23 from a position where they contact the upper and lower head arms 7 and 9 to a position where they do not contact or from a position where they do not contact. And a mechanism 24.

The upper and lower head arm contact members 22,
Reference numeral 23 is disposed substantially directly above or directly below the lift pins 12 and 14 provided on the upper and lower head arms 7 and 9 when the head carriage 10 is moved to the outermost peripheral side.

As shown in FIG. 12, one end of a first link rod 26 is rotatably attached to one end of the upper head arm contact member 22 by a first shaft 25. One end of a second link rod 28 is rotatably attached to one end of the lower head arm contact member 23 by a second shaft 27, and the first and second link rods 26, 28 By connecting the other end rotatably about the third shaft 29, the upper and lower head arm contact members 2 are connected.
One ends of 2, 23 are connected to each other.

Further, one end of a third link rod 31 is rotatably attached to the other end of the upper head arm contact member 22 by a fourth shaft 30, and a lower head arm contact member is provided. One end of a fourth link rod 33 is rotatably attached to the other end of the link 23 by a sixth shaft 32, and the other end of the third and fourth link rods 31, 33 is 6, the other end portions of the upper and lower head arm contact members 22, 23 are
Linked to each other.

The upper and lower head arm contact members 22,
23 is the first, second, third and fourth link rods 26,
The upper and lower head arm contact members 22, 23 are formed in a so-called parallel link shape by 28, 31, 33 and the like, and when the distance between the third shaft 29 and the sixth shaft 34 is reduced.
Are kept open in a vertical direction while maintaining a parallel state, and become a so-called open state.
Is increased, the upper and lower head arm contact members 22 and 23 are narrowed in the vertical direction while maintaining a parallel state, so that they are in a so-called closed state.

At both ends of the upper head arm contact member 22 (in the vicinity of the first shaft 25 and in the vicinity of the fourth shaft 30), as shown in FIG. Lift pin contact surface 22 with which the lift pin 12 of the upper head arm 7 contacts.
a and a downwardly inclined surface 22b that is continuous with the lift pin contact surface 22a.

At both ends of the lower head arm contact member 23 (in the vicinity of the second shaft 27 and in the vicinity of the fifth shaft 32), the lower head arm 9 is provided as shown in FIG. A substantially horizontal lift pin abutment surface 23a with which the lift pin 14 abuts and an upwardly inclined surface 23b continuous with the lift pin abutment surface 23a are formed.

As shown in FIG. 15, a third shaft 29 connecting the first and second link rods 26 and 28 is connected to a first fixed base 41 erected on the mechanical chassis 2. And a sixth shaft 34 connecting the third and fourth link rods 31 and 33 is mounted on a slide plate 42. The slide plate 42 is slidably attached to a second fixed base 43 erected on the mechanical chassis 2. The slide plate 42 is pulled by the tension coil spring 44 toward the first fixed base 41, and maintains the upper and lower head arm contact members 22, 23 in an open state.

The above-mentioned upper and lower head arm contact members 2
When the upper head arm 7 descends following the lowering of the cartridge holder 3 in a state in which the upper head arm 7 and the lower arm arm 23 are opened, as shown in FIG.
Of the upper head arm contact member 22 abuts against the lift pin contact surface 22a of the upper head arm contact member 22.
The disk-shaped recording medium 2 in which the upper head chip 6 is chucked on the spindle 5 while preventing the
02, and the lift pin contact surface 33a of the lower head arm contact member 23 contacts the lift pin 14 of the lower head arm 9, and the lower head arm 9 Stop the rise,
The lower head chip 8 provided at the tip is prevented from contacting the lower surface of the disk-shaped recording medium 202.

When the slide plate 42 is slid against the spring force of the tension coil spring 44 by the solenoid 51 of the head arm contact member drive mechanism 24 described below, as shown in FIG. The head arm contact members 22, 23 are closed so as to overlap in the vertical direction, and the upper and lower head arm contact members 22, 23 and the lift pins 12, 14 of the upper and lower head arms 5, 9 are uncoupled. Make contact.

FIG. 17 is an exploded perspective view of the head arm contact member drive mechanism 21 including the slide plate 42. The slide plate 42 has a pair of long holes 42 a and 42 b for slidably attaching to the second fixed base 43, a spring locking portion 42 c for locking one end of the tension coil spring 44, A bearing hole 42d for mounting a sixth shaft 34 connecting the third and fourth link rods 31 and 33 connecting one end sides of the upper and lower head arm contact members 22 and 23; First and second stoppers 42e and 42f for defining the open positions of the upper and lower head arm contact members 22 and 23, and a third stopper for defining the closed positions of the upper and lower head arm contact members 22 and 23. The stopper 42g and the to-be-pulled portion 42 to be pulled by the solenoid 51 of the head arm contact member drive mechanism 24 described below.
h, and a lock pin 42i locked by a lock plate of the head arm contact member drive mechanism 24.

The slide plate 42 is provided with the pair of long holes 4.
By inserting a pair of slide guide pins 43a, 43b provided on the second fixed base 43 into 2a, 42b, it is slidably mounted on the second fixed base 43. (See FIGS. 15 and 16).

As shown in FIGS. 11 and 17 and 18, the head arm contact member drive mechanism 24 slides the slide plate 42 against the spring force of the tension coil spring 44 so as to slide the upper plate and the lower plate. A solenoid 51 for closing the head arm contact members 22, 23,
A lock plate 52 for locking the slide plate 42 in a state where the upper and lower head arm contact members 22 and 23 are closed; moving the lock plate 52 from a slide plate lock position to an unlock position; First rotating lever (head carriage lock lever) 53 that pushes back and locks 10 to the outermost position
A second rotating lever 54 for locking the first rotating lever 53 at a position where the head carriage 10 is pushed back to the outermost position, and a latch for attracting and locking the second rotating lever 54. And a magnet 55.

The solenoid 51 includes an iron core (shaft).
51a is inserted into a U-shaped notch groove 42j provided in the towed portion 42h of the slide plate 42, and the tip of the iron core 51a has a diameter larger than the width of the U-shaped notch groove 42j. Is provided.

As shown in FIG. 17, the lock plate 52 has a pair of elongated holes 52a and 52 for a slide guide.
b, the spring locking portion 52c, and the slide plate 42
Lock portion 52d which engages with a lock pin 42i provided at the
And a pin engaging portion 52e with which a lock plate engaging pin 53c provided on the first rotating lever 53 described below is engaged.

By inserting a pair of slide guide pins 2a, 2a provided on the mechanical chassis 2 into the elongated holes 52a, 52b for the slide guide, the lock plate 52 is substantially in the slide direction of the slide plate 42. It is mounted so as to be slidable in the direction perpendicular to the direction. (Figure 1
8).

The lock plate 52 is pulled toward the slide plate 42 by a tension coil spring 56 whose one end is locked to the spring lock portion 52c, and the lock portion 52d is provided on the slide plate 42. It is in contact with the lock pin 42i.

In the initial state before the slide plate 42 is pulled by the solenoid 51, the lock plate 52 has a distal end surface (a surface on the slide plate side) of the lock portion 52d as shown in FIG. 52f is in contact with the lock pin 42i and is slightly pushed back against the spring force of the tension coil spring 56. The slide plate 42 is connected to the solenoid 5
23, the lock pin 42i is moved to the distal end face 52f of the lock portion 52d as shown in FIG.
When the lock plate 52 comes to the position of the pin fitting concave portion 52g adjacent to the tension coil spring 56,
The spring pin is slid to the slide plate 42 side to accommodate the lock pin 42i in the pin fitting recess 52g to lock the slide plate 42.

As shown in FIG. 17, the first rotary lever 53 has a bearing hole 53a provided at one end in the length direction.
A head carriage engagement pin 53b provided on the upper surface on the other end side, and a lock plate engagement pin 53c provided on the lower surface side near the head carriage engagement pin 53b.
And a locked portion 53d provided on one side near the lock plate engaging pin 53c, and a lever engaging pin 53e provided on the upper surface of a substantially central portion in the longitudinal direction.

The first rotating lever 53 is rotatably mounted on the mechanical chassis 2 by inserting a shaft (not shown) provided on the mechanical chassis 2 into the bearing hole 53a. The torsional coil spring 57 applies a counterclockwise rotating force in FIG. 18, and the head carriage engaging pin 53b presses the coil portion 11a of the VCM 11 of the head carriage 10 to move the head carriage 10 to the outer peripheral side. The lock plate engaging pin 53c can be moved and the pin engaging portion 52 of the lock plate 52 can be moved.
e, the lock plate 52 can be slid against the spring force of the tension coil spring 56.

As shown in FIG. 17, the second rotary lever 54 has a bearing hole 54a provided at one end in the longitudinal direction.
A lever lock 54b provided on the other end, a pin engagement recess 54c provided on one side near the lever lock 54b, and a movable member provided near the pin engagement recess 54c. An iron piece 54d and a solenoid engagement pin 54e provided at a substantially central portion in the length direction are provided.

The second rotating lever 54 is connected to the bearing hole 5.
4a is rotatably mounted on the mechanical chassis 2 by inserting a shaft 2d provided on the mechanical chassis 2 and a torsion coil spring 58 shown in FIG.
Clockwise turning power is applied.

The solenoid engaging pin 54e of the second rotary lever 54 is inserted between the flange 51b attached to the tip of the iron core 51a of the solenoid 51 and the towed portion 42h of the slide plate 42. Then, the spring force of the torsion coil spring 58 causes the solenoid 5
1 and is in contact with the flange portion 51b of the
An appropriate gap δ is generated between 2h.

When the solenoid engaging pin 54 e is in contact with the flange 51 b of the solenoid 51, the second lever 54 is engaged with the first lever 53. It comes to a position where it engages with the locking portion 53d.

When a small current (approximately 500 mA) is applied to the solenoid 51, the solenoid engaging pin 54e is pulled by the flange portion 51b of the solenoid 51, and the second rotating lever 54 is pulled. 5
8 and slightly rotates against the spring force of No. 8 so as to rotate in a direction in which the lock of the first rotation lever 53 by the lever lock portion 54 is released.

When a large current (about 1 A) is applied to the solenoid 51, the second rotating lever 54 pulls the solenoid engaging pin 54e by the flange portion 51b of the solenoid 51, and The slide plate 42 is brought into contact with the towing portion 42h to tow the towed portion 42h.
Is pulled against the spring force of the tension coil spring 44, and after the lever engagement pin 53e of the first rotation lever 53 is fitted into the pin engagement recess 54c, the movable iron piece 54d is Latch magnet 5
5 to be locked.

Next, a series of operations of the disk drive device 1 will be described.

In the initial state shown in FIGS. 4 and 18, the upper and lower head arm contact members 22 and 23 are
They are separated downward. The lift pin contact surface 22a of the upper head arm contact member 22 is located substantially directly above the lift pin 12 provided on the upper head arm 10, and the lift pin contact surface 23a of the lower head arm contact member 23 is The lower head arm 8 is in contact with the lift pins 14 of the lower head arm 8 so that the lower head arm 8 is bent downward. Further, the first rotation lever 53
The head carriage engaging pin 53b presses one side of the coil portion 11a of the VCM 11 of the head carriage 10 and the head carriage locking means 1
The other end of the coil portion 11a of the VCM 11 is pressed by the tip of the elastic member 105 of the VCM 11 and pressed against the stopper on the outer peripheral side.

When the disk cartridge 201 is inserted into the cartridge holder 3 in this state, the shutter opening member 6 provided in the cartridge holder 3 is opened.
1, the shutter 204 is slid so that the recording / reproducing opening 20
3a is released, and the lock of the cartridge holder lifting / lowering operation plate 4 by the trigger lever 63 is released. The cartridge holder lifting / lowering operation plate 4 unlocked by the trigger lever 63 slides in the front direction to unlock the head carriage by the head carriage lock means 101 as shown in FIG. Then, the cartridge holder 3 is lowered to chuck the disk-shaped recording medium 202 on the spindle 5. The upper head arm 7 also descends following the lowering of the cartridge holder 3, and the head arm 7 further descends when the lift pins 12 abut on the lift pin contact surface 22 a of the upper head arm contact member 22. Thus, the upper head chip 6 and the disk-shaped recording medium 202 are kept in a non-contact state.

When a small current (about 500 mA) is applied to the solenoid 51 with the spindle 5 turned on, as shown in FIG. 19, the solenoid 51 is pulled by the solenoid 51 and the second rotating lever 54 is pulled. Is rotated in the counterclockwise direction, and the first rotation lever 5 by the second rotation lever 54 is
3 is released, and the lock of the head carriage 10 by the first rotating lever 53 is also released.

Then, when a current is applied to the VCM 11 and the head carriage 10 is slid inward (in the direction of arrow A), the lift pins 12 of the upper head arm 7 are moved upward as shown in FIGS. The head chip 6 descending along the inclined surface 22b of the head arm contact member 22 and attached to the tip of the head arm 6
Gently contacts the upper surface of the disk-shaped recording medium 202,
That is, the landing pin is soft-landed and the lift pin 14 of the lower head arm 9 is
The head chip 8 rising along the third inclined surface 23 b and attached to the tip of the head arm 9 makes a soft landing on the lower surface of the disk-shaped recording medium 202. (If the current to the VCM 11 is controlled and the head carriage 10 is moved at a low speed, the impact at the time of landing becomes smaller).

After the upper and lower head chips 6, 8 are soft-landed on the upper and lower surfaces of the disk-shaped recording medium 202, the supply of a small current to the solenoid 51 is stopped, and the second rotating arm 54 is stopped. To the original position (a position where the first rotating arm 53 can be locked).

Next, as shown in FIG. 22, the head carriage 10 is moved by the VCM 11 to the innermost position. When the head carriage 10 is moved inward, the carriage engaging pin 53b is pressed by the coil portion 11a of the VCM 11, and the first rotating lever 53
It turns against the spring force of the torsion coil spring 57.

When the head carriage 10 is moved to the innermost position, a large current (about 1
A) and a small current (about 1 mA) also flows through the latch magnet 55.

When a large current is applied to the solenoid 51, the flange 51b at the distal end of the solenoid 51 moves more than when a small current is applied.
As shown in FIG. 7, the towed portion 42h is pulled through the solenoid engagement pin 54e, and the slide plate 4 is pulled.
2 is slid against the spring force of the tension coil spring 44. The slide plate 42 slid against the spring force of the tension coil spring 44 is locked by the lock plate 52.

Further, by applying a large current to the solenoid 51, the second rotating lever 54, which has been rotated at a larger angle than when a small current is applied, attracts the movable iron piece 54d by the latch magnet 55. Then, even if the power supply to the solenoid 51 is stopped, the solenoid 51 is locked so as not to return. At this time, the second rotation lever 54 is inserted into the lever engagement recess 54c by introducing the lever engagement pin 53e provided on the first rotation lever 53, and the first rotation lever 53 Is locked so that it does not return and rotate.

By the sliding of the slide plate 42, as shown in FIG. 24A, the upper and lower head arm contact members 22 and 23 overlap each other in the up and down direction and become closed. The lower head arms 7, 9 are brought into a non-contact state.

Then, as described above, the slide plate 4
When the lock plate 2 is locked by the lock plate 43, the upper and lower head arm contact portions 22, 23 are maintained in a non-contact state with the upper and lower head arms 7, 9.

In this state, recording / reproduction is performed while moving the head carriage 10 in the radial direction of the disk-shaped recording medium 202.

When the recording / reproduction is completed, the head carriage 10 is sent to the outermost periphery by the VCM 11 as shown in FIG.

When the energization of the latch magnet 55 is stopped, as shown in FIG. 26, the magnetic attraction of the latch magnet 55 is lost, and the second rotating lever 54 is moved by the torsion coil spring 58. And returns to the initial position after releasing the lock of the first turning lever 53.

The first rotating lever 53 unlocked by the second rotating lever 54 is returned and rotated by the spring force of the torsion coil spring 57 while being locked by the lock plate engaging pin 53 with the lock plate 52. Is slid against the spring force of the tension coil spring 56. When the lock plate 52 slides against the spring force of the tension coil spring 56, the lock plate 52
The pin 42i provided on the slide plate 42 comes out of the pin fitting recess 52g of the lock portion 52d provided in the lock plate 52d, and the lock of the slide plate 42 is released.

The slide plate 42 unlocked by the lock plate 52 is provided with a tension coil spring 44.
24, the upper and lower head arm contact members 22, 23 are separated upward and downward by the spring force of FIG.
The state returns to the initial state shown in FIG.

As shown in FIG. 27, when the power is turned off due to a power failure or the like during recording / reproduction, the magnetic attraction of the latch magnet 55 is lost, and the second rotating lever 54 is turned off. Since it will be unlocked,
As shown in FIG. 28, the second rotation lever 54 is rotated by the spring force of the torsion coil spring 58 to release the lock of the first rotation lever 53. The second rotating lever 54
The first rotation lever 53 unlocked by the first rotation returns and rotates by the spring force of the torsion coil spring 57. At this time, the carriage engagement pin 53b provided at the tip of the first rotation lever 53 is connected to the VC
The head carriage 10 is moved to the outermost peripheral side while coming into contact with the coil portion 11a of M11, and the lock plate 52 is moved against the spring force of the tension coil spring 56.

When the eject button is pressed after the end of recording / reproduction, the eject motor 65 causes the cam 6 to move.
6 rotates, and a pin 67 provided on the cam 66 presses a pin engaging portion 68 of the cartridge holder elevating operation plate 4,
The cartridge holder lifting / lowering operation plate 4 slides in the rear direction, and as shown in FIG.
1 coil part 11a, and presses the head carriage 10
Is pressed against the stopper on the outer peripheral side, and the cartridge holder 3 is lifted to the unloading position by the sliding of the cartridge holder raising / lowering operation plate 4 in the rear direction, and the disc cartridge 201 is ejected from the cartridge holder 3. .

The disk drive device 1 according to the embodiment has the above-described structure. When the disk drive device 1 is not used, one end of the coil portion 11a of the VCM 11 is formed by the elastic member 105 of the head carriage lock means 101 as shown in FIG. While the other end side of the coil portion 11a of the VCM 11 is pressed by the head carriage engaging pin 53b of the first rotation lever 53 of the head arm contact member driving mechanism 24 of the head arm movement control means 21. By pressing the head carriage 10 against a stopper on the outer peripheral side, the head carriage 10 can be pressed when the disk drive device is not in use.
Even if a strong impact is applied to the head carriage, the head carriage 10 can be prevented from moving and the head chip or the like can be reliably prevented from being damaged.

[0083]

The disk drive of the present invention has the following effects.

(1) In the disk drive device according to the first aspect, when the cartridge holder lifting / lowering operation plate slides in the direction for raising the cartridge holder to the unloading position at the time of ejecting, the cartridge holder lifting / lowering operation plate slides, The head carriage locking means operates to lock the head carriage by pressing the head carriage against the stopper. Therefore, even if a strong shock or the like is applied to the disk drive device for some reason when the disk drive device is not used, the head carriage is prevented from moving by the shock and the head chip or the like is protected from the shock. be able to.

(2) In the disk drive device according to the second aspect, the rotating arm rotates in conjunction with the slide of the cartridge holder elevating operation plate, and the head carriage is moved to the stopper by the elastic member provided on the rotating arm. The head carriage can be locked by pressing.

(3) The disc drive device according to claim 3, wherein the interlocking mechanism for turning the rotation lever in conjunction with the slide of the cartridge holder elevating operation plate is provided in the cartridge holder elevating operation plate and the long hole and the rotation lever. And the pin provided on the cartridge holder, it is possible to reliably rotate the rotary lever in conjunction with the slide of the cartridge holder elevating operation plate with a simple structure.

(4) The disk drive of claim 4 uses a torsion coil spring for the elastic member.
By using the coil portion, it is possible to easily and surely attach the head portion to the rotating lever, and one of the arm portions extending from one end of the coil portion can be brought into contact with the head carriage to press the head carriage against the stopper. .

(5) In the disk drive device according to the fifth aspect, when a strong impact is applied, first, the elastic member bends to absorb the impact, and then the head carriage contact portion of the rotating lever comes into contact with the elastic member. Prevents further movement of the head carriage.

[Brief description of the drawings]

FIG. 1 is a plan view of a disk cartridge and a disk drive device.

FIG. 2 is a side view of an unloading state.

FIG. 3 is a side view of a loading state.

FIG. 4 is a plan view of an unloading state.

FIG. 5 is a plan view of a loading state.

FIG. 6 is a plan view of a main part of a head carriage lock unit.

FIG. 7 is a side view of a main part of the head carriage locking means.

FIG. 8 is a plan view showing the operation of a head carriage lock unit.

FIG. 9 is a plan view showing the operation of a head carriage lock unit.

FIGS. 10A, 10B, and 10C are side views of the disk drive device.

FIG. 11 is a perspective view of a main part.

FIG. 12 is a front view of upper and lower head arm contact members.

FIG. 13 is a sectional view taken along line AA of FIG. 12;

FIG. 14 is a sectional view taken along line BB of FIG. 12;

FIG. 15 is a front view showing a state where upper and lower head arm contact members are opened.

FIG. 16 is a front view showing a state where upper and lower head arm contact members are closed.

FIG. 17 is a perspective view of a slide plate, a lock plate, and first and second rotation levers.

FIG. 18 is a plan view of a main part showing the operation of the disk drive device.

FIG. 19 is a plan view of a main part showing the operation of the disk drive device.

FIG. 20 is a plan view of a main part showing the operation of the disk drive device.

FIGS. 21A, 21B, and 21C are side views of main parts showing a process in which a head chip contacts a disk-shaped recording medium.

FIG. 22 is a plan view of a main part showing the operation of the disk drive device.

FIG. 23 is a plan view of a main part showing the operation of the disk drive device.

FIGS. 24A and 24B are side views of main parts in a state where the upper and lower head arm contact members are closed and opened.

FIG. 25 is a plan view of a main part showing the operation of the disk drive device.

FIG. 26 is a plan view of a main part showing the operation of the disk drive device.

FIG. 27 is a plan view of a main part showing the operation of the disk drive device.

FIG. 28 is a plan view of a main part showing the operation of the disk drive device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Disk drive device, 2 ... Mechanical chassis, 3 ... Cartridge holder, 4 ... Cartridge holder raising / lowering operation plate, 5 ... Spindle motor, 6 ... Upper head chip,
7 upper head arm, 8 lower head chip, 9 lower head arm, 10 head carriage, 11 VC
M, 101: head carriage locking means, 102:
Shaft, 103: rotating lever, 104: interlocking mechanism, 105:
Elastic member (torsion coil spring), 106 ... long hole, 1
07 ... pin, 111 ... head carriage contact part, 201
... Disk cartridge 202. Disk-shaped recording medium.

Claims (5)

[Claims] 1. A mechanical chassis, a cartridge holder mounted on the mechanical chassis so as to be able to move up and down between an unloading position and a loading position, and slidably mounted on the mechanical chassis,
A cartridge holder elevating operation plate that slides in one direction to raise the cartridge holder to the unloading position and slides in the other direction to lower the cartridge holder to the loading position; A spindle for mounting a disk-shaped recording medium of a disk cartridge housed in the cartridge holder; and a head chip for transmitting and receiving signals to and from the disk-shaped recording medium mounted on the spindle. A disk drive device comprising: a head carriage movable in a radial direction of a recording medium, wherein the cartridge holder elevating operation plate is swung in a direction to raise the cartridge holder to the unloading position. A disk drive device comprising: a head carriage locking means for locking the head carriage by pressing the head carriage against a stopper in conjunction with sliding of the cartridge holder elevating operation plate when riding. 2. The head carriage lock means according to claim 1, wherein the head carriage lock means connects a rotation lever attached to a mechanical chassis such that one end thereof is rotatable by a shaft, and connects the rotation lever to a cartridge holder elevating operation plate. An interlocking mechanism for turning the turning arm in conjunction with the slide of the cartridge holder elevating operation plate; and an interlocking mechanism attached to the turning lever, whereby the turning lever is moved in the head carriage lock direction by the interlocking mechanism. An elastic member that comes into contact with the head carriage when pressed and presses the head carriage against a stopper. 3. The interlocking mechanism according to claim 2, wherein the interlocking mechanism includes an elongated hole provided in the cartridge holder elevating operation plate, and a pin provided in the rotating arm and fitted in the elongated hole. A disk drive device characterized by being performed. 4. The disk drive device according to claim 2, wherein the elastic member is a torsion coil spring. 5. The head carriage abutment according to claim 4, wherein the rotating lever abuts when the head carriage moves against the spring force of the elastic member, and prevents further movement of the head carriage. A disk drive device comprising a unit.