JPH01162287A - Information recorder - Google Patents

Abstract

PURPOSE:To reproduce the positional relation between the data track position of a disk and a head position with high accuracy and to execute a high density recording by providing an engaging means to separate a head supporting mechanism from a disk surface according to the prevention of conducting to an actuator and make the head into a separated state from the disk surface. CONSTITUTION:When a disk unit 1 is removed from a case, the head is focibly separated from the disk surface by the engagement of guiding means 16A and 16B of head supporting mechanisms 13 and 14 with the engaging means. On the other hand, when the disk unit is housed in the internal part of the case, writing/reading to the disk by this head can be executed by the disengagement of the guiding means of the head supporting mechanisms from the engaging means. Thus, while the mutual positional relation of the disk position and the head position at the time of loading can be reproduced with high accuracy, high reliability at the time of high density recording of the disk, the writing/ reading of the disk, etc., can be attained.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an information recording device used as an external storage means of a computer, and particularly to an information recording device used to achieve high density recording and high reliability. The present invention relates to a cartridge type information recording device which is suitable for use in a cartridge type information recording device.

[Prior Art and Problems] In recent years, there has been an increasing demand for cartridge-type disk devices with replaceable disks, which are suitable for backup purposes, for example. In this type of disk device, the only mechanical parts that need to be replaced are the disk and the disk storage case that removably stores the disk. For this reason, the following problems occurred.

■When a disk is loaded into the drive unit of a disk device, it is difficult to reproduce with high precision the center of rotation of the disk at the time of loading, and also to reproduce with high precision the positional relationship between the data track position of the disk and the head position. Met. In addition, since highly accurate positioning was difficult in this way,
There is a limit to increasing track density, and it has been impossible to achieve high density recording.

■Since the disc storage case is similar to an open case,
It is easily affected by dust that enters from outside the disk device, and there is a risk that the incoming dust may interfere with the writing/reading operations of the head, leading to problems in terms of reliability. Ta.

■In the case of a so-called contact start/stop (CSS) type disk device, in which the head and disk make contact when the disk stops rotating, and when the disk starts rotating, the head floats slightly and writes/reads in this floating state. ,
When the head lands on the disk when the disk stops rotating, there have been problems such as damage to the head and the disk, or a phenomenon of adhesion occurring between the head and the disk.

The present invention effectively solves the above-mentioned problems, and reproduces the mutual positional relationship between the disk position and head position with high precision during loading, and also achieves high-density recording of the disk and high reliability during writing/reading. The purpose of the present invention is to provide an information recording device that can achieve the following functions.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a disk, a motor for rotationally driving the disk, a head for writing or reading information to or from the disk, and a head equipped with the head. A disk unit including a head support mechanism, an actuator for moving the head support mechanism in a radial direction of the disk, and a first connection connector to which lines from the motor and the actuator are connected, and a pair with the first connection connector. a case in which the disk unit is removably housed by connecting the first and second connection connectors; An information recording device comprising: a disk control circuit that supplies electrical signals via a connection connector;
a biasing means for biasing the head support mechanism toward the outer periphery of the disk; a guide means provided on the head support mechanism; and a guide means provided outside the outer periphery of the disk; , an engagement means for engaging the guide means by the urging force of the urging means to separate the head support mechanism from the disk surface, and to disengage the head from the disk surface. shall be.

[Operations] According to the present invention, when the disk unit is removed from the case, the guide means of the head support mechanism engages with the engagement means, so that the head is forcibly separated from the disk surface. On the other hand, when the disk unit is housed inside the case, the guide means of the head support mechanism is disengaged from the engagement means, allowing the head to write/read on the disk.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 is a disk unit, and 2 is a case for storing the disk unit.
(removable) is possible. The disk unit l is formed into a substantially rectangular parallelepiped shape, and a handle IB is disposed on the removal direction side of the outer frame IA of the disk unit l.
Guides 3 having grooves 3A are provided on both sides of the outer frame IA, respectively. Further, a connecting connector 4 (plug) that pairs with a connecting connector disposed in the case 2 and described later is disposed at the end of the outer frame IA on the storage direction side.

Inside the disk unit 1, a disk, head, head arm, voice coil motor, guide plate, slider, etc., which will be described later, are integrated and housed.

Reference numeral 5 denotes a control board mounted, for example, inside a personal computer system, on which the case 2 is attached and fixed, and various electronic components such as a disk controller are mounted.

The case 2 is composed of a case main body 6 and an upper lid 7. The case main body 6 has a hollow rectangular parallelepiped shape that is open on the side in the storage direction of the disk unit l and has a mounting hole 6A. has a mounting hole 7A opposite to the mounting hole 6A, and is fixed to the case body 6 with a mounting screw 7B. Guide members 8, 8 each having a shape to fit into the grooves 3A, 3A of the guides 3, 3 of the disk unit l are disposed on both side plates 6B of the case main body 6, while guide members 8, 8 are disposed at the ends of the back plate 6C. A connecting connector 9 (receptacle) that pairs with the connecting connector 4 is provided.

Then, the disk unit 1 is stored inside the case 2 via the guides 3, 3 and guide members 8, 8,
By connecting the connecting connector 4 and the connecting connector 9, it becomes possible to operate.

The details of the inside of the disk unit 1 will be explained with reference to FIGS. 2 and 3. A disk 10 is disposed inside the disk unit 1, and is driven to rotate in the direction of the arrow (counterclockwise) by a spindle motor 11. It has become so. A signal cable (flat cable) 4A is wired from the connector 4 to the spindle motor 11, and is electrically connected to the control board 5 via the connectors 4 and 9, and power is supplied to the motor 11. It has become so. The heads 12A and 12B are equipped with a gimbal 13A-
It is driven by the voice coil motor section 15 via the head arm 13B and the head arm 14, and is positioned on a predetermined data track of the disk IO to write/read data.

The head arm 14 can be swung in the disk radial direction (arrow Yl-Y2 direction) about the pivot shaft 14A by the voice coil motor section 15, so that the heads 12A and 12B can be swung in the disk radial direction. It is supposed to seek. A signal cable (flat cable) 4B is wired from the connector 4 to the voice coil motor section 15.
It is electrically connected to the control board 5 via 9, and power is supplied to the motor section 15.

A pair of guide plates 16A-16B are located near the head attachment points at the tips of the gimbals 13A and 13B.
is provided, and a slider 17 is provided near the outer periphery of the disk 10.

These guide plates 16A-16B and slider 1
Reference numeral 7 is provided to forcibly remove the heads 12A and 12B from the disk surface when the disk unit 1 is removed from the case 2.

Here, in FIG. 4, the heads 12A and 12B are
2 is a diagram illustrating an operation in which writing/reading is performed on the disk. During this operation, the heads 12A-12B are lifted a small distance (for example, about 0.2 to 0.4 μm) from the disk surface by the air flow. There is. In the figure, the guide plate 16A is arranged perpendicular to the axis of the gimbal 13A and inclined upward with respect to the gimbal surface, and the guide plate 16BIt is arranged perpendicular to the axis of the gimbal 13B and with respect to the gimbal surface. It is arranged in a downwardly sloping manner.

On the other hand, the slider 17 has a substantially inverted side cross-sectional shape, and a recess 17B is formed at its tip 17A. Slope portion 17G on the top surface of the tip portion 17A
is inclined downward with respect to the outer circumference of the disk, and the slope portion 17D on the lower surface is inclined upward with respect to the outer circumference of the disk, and the inclination angle of both slope portions 17cm17D is the same as the inclination angle of the guide plates 16A-16B. It is said that the degree of The upper wall surface and lower wall surface within the recess 17B face the outer peripheral edge of the disk IO, and the vertical height between the upper wall surface and the lower wall surface is such that the outer peripheral edge of the disk is located between the earth wall surface and the lower wall surface. The hole is formed to be slightly larger than the thickness of the disk 10 so that the disk 10 can rotate without the upper and lower surfaces of the disk 10 coming into contact with each other.

Referring again to FIG. 3, one end of a spring 18 is fixed near the tip of the head arm 14, and the other end of the spring 8 is fixed to a base tC in the disk unit l. Due to the biasing force of the spring 18, a tensile force is normally applied to the head arm 14 in the direction of arrow Y3 in the figure. For this reason, head l 2A-12
During non-operation when writing/reading is not performed by B, that is, when the disk unit 1 is removed from the case 2, the connection between the connectors 4 and 9 is released, and as a result, the power supply to the voice coil motor section I5 is stopped. , the head arm 14 on the disk surface is moved in the direction of arrow Y3 by the tensile force of the spring 18.

As a result, as shown in FIG. 5, the guide plate 16A
・16B each is the slope of slider 17 KrJ17
When you climb onto G.17D and lock it, gimbal 13A-1
3B open from each other in the vertical direction, head f 2A-1
2B is forcibly removed from the disk surface, and disk 10
(See FIGS. 6 and 7).

In this case, the slope portions 17A and 17 of the slider 17
A locking means for preventing the guide plates 16A and 16B that have ridden on the slider B from sliding down toward the center of disk rotation may be provided, for example, near the location where the slider 17 is disposed.

On the other hand, during writing/reading operations by the heads 12A-12B, the head arm 14 overcomes the tensile force of the spring 18 and moves in the direction of arrow Y2 due to power being supplied to the voice coil motor section 15 when the device power is turned on. The head 1 moves and the guide plates 16A and 16B come off the slope portions 17c and 17D of the slider 17, respectively.
2A and 12B land on a predetermined data track of the disk 10 and are positioned and stopped, or are sought from the data track to another data track.

Also, the head l 2A-12B, the gimbal 13A-1
The head assembly consisting of the guide brakes 3B, 1-16A-16B, etc. is constructed as shown in FIG. That is, the core portion 1 is located at the tip of the head 12A (12B).
9A (19B) is formed, and the core portion 19A (
19B) is wound with a coil, and the coil is connected to the signal cable 4B via a thin lead wire 21 covered by a tube 20. As a result, read/write signals associated with writing/reading of the heads 12A-12B are sent to and received from the disk controller mounted on the control board 5 via the connection connectors 4 and 9.

Referring again to FIG. 3, a t-th moisture absorbent 22 is disposed inside the disk unit 1 at a corner near the slider 17, which keeps the inside of the cough disk unit 1 in a low humidity state. Further, in the corner part inside the disk unit l on the side where the handle IB is attached, the disk unit l
An air filter 23 for cleaning the internal air is provided. Further, in each of the corner portions and the opposite corner portion, there are air holes 24 for equalizing the internal pressure and external pressure of the disk unit I, and for smooth air circulation in the air holes 24 and for preventing air from outside. A press filter 25 is provided to prevent dust from entering.

Next, the operation of this embodiment with the above configuration will be explained.

Hold the disk unit l by the handle IB, and then pull the guide 3
3 and the guide members 8, 8, and store it inside the case 2 until it is completely stored.

As a result, the connecting connector 4 and the connecting connector 9 are fitted to each other and are in a connected state. In this case, before storing the disk unit l in the case 2, the guide plates 16A and 16
B are the slope portions 17G and 17 of the slider 17, respectively.
By riding on D, the heads 12A-12B separate from the disk surface and retreat further outward from the outermost track.

When the disk unit 1 is housed inside the case 2, power is supplied to the voice coil motor section 15 via the connection connectors 4 and 9, and the motor section 15 drives the head arm 14. Accordingly, the head arm 14 moves in the direction of arrow Y2 against the tensile force of the spring 18, and as a result, the guide plates 16A and 16B move toward the slider 1.
7, the head 12A comes off from the slope portions 17C and 17D.
- 12B is accurately positioned to the predetermined data track of the disk IO. As a result, the heads 12A and 12
B writes/reads data to/from the data track.

On the other hand, when replacing the disk unit L, for example, the handle I
When the disk unit 1 is removed from the case 2 while holding B, the connection between the connecting connector 4 and the connecting connector 9 is released, so that the power supply to the voice coil motor section 15 is stopped. Along with this, the head arm 14 is
As a result of being pulled in the direction of arrow Y1 by the tensile force of 8, the guide plates 16A and 16B ride on and lock onto both slope portions 17C to 17D of the slider 17, respectively. As a result, the heads 12A and 12B are forcibly separated from the disk surface and retreated further outward from the outermost track.

Note that after this, if another disk unit replaced with the disk unit 1 is stored in the case 2, data can be written/read in the same manner as described above.

According to the embodiment described above, it is possible to reproduce with high precision the mutual positional relationship between the disk position and the head position when the disk unit 1 is housed in the case 2.
This makes it possible to increase the track density, thereby making it possible to perform high-density recording, and also to achieve high reliability during writing/reading. Further, it is possible to prevent problems such as damage to the head and disk and adsorption phenomenon, which are conventional.

In addition, the following modification examples can be considered in the above embodiment.

(2) Although the description has been made regarding a normal disk device, the present invention is not limited to this, and can also be applied to an optical disk device or a magneto-optical disk device.

■Although the structure includes a moisture absorbent, it is not limited to this.
It may be omitted.

(2) Although the configuration includes an air filter, the present invention is not limited to this, and may be omitted.

(2) Although the spring is attached to the distal end of the head arm, the present invention is not limited to this, and for example, the spring may be attached to the proximal end of the head arm.

■Although the head arm is biased toward the outer circumference of the disk by a spring, the present invention is not limited to this. When writing/submitting using the head, for example, a mechanism such as a spring may be used to temporarily move the head arm to the innermost circumference of the disk. After accumulating pressure in the spring and moving the herad arm to the outermost circumference of the disk again,
A configuration may also be adopted in which positioning is performed on a predetermined data track.

[Effects of the Invention] A motor that rotationally drives the disk, a head that writes or reads information to or from the disk, a head support mechanism equipped with the head, and a head support mechanism that moves the head support mechanism in the radial direction of the disk. a disk unit having an actuator, a first connection connector to which lines from the motor and the actuator are connected; and a second connection connector that is paired with the first connection connector, and the first and second connection connectors are connected to each other.
The disk unit includes a case in which the disk unit is removably housed by connecting connectors to each other, and a disk control circuit that supplies electrical signals to the disk unit housed in the case via the first and second connection connectors. an information recording device comprising: a biasing means provided on the head and a support mechanism for biasing the head support mechanism toward the outer circumferential direction of the disk; a guide means provided on the head support mechanism; A locking mechanism is provided outside the outer peripheral edge of the disk, and engages the guide means by the urging force of the urging means when power to the actuator is stopped, thereby causing the head to separate from the disk surface. Since the configuration includes the combining means, the following effects can be achieved.

■It is possible to reproduce with high precision the mutual positional relationship between the disk position and head position when the disk unit is stored in the case. This makes it possible to improve the track density, thereby making it possible to perform high-density recording and achieve high reliability during writing/reading of the head.

(2) When the head is not in operation, the head can be removed from the disk surface and evacuated using a simple mechanism without using a special mechanism such as a solenoid. This makes it possible to downsize the device and is also advantageous in terms of cost reduction.

[Brief explanation of the drawing]

The drawings are diagrams for explaining one embodiment of the present invention, and FIG. 1 is an external view showing the configuration of a disk device, FIG. 2 is a schematic diagram showing the internal configuration of a disk unit, and FIG. 3 (A) is a plan view of the disk unit during operation;
is a side sectional view, FIG. 4 is a rear view, FIG. 4 is a side view showing the positional relationship between the disk and the head during operation, and FIG.
The figure is a side view showing the positional relationship between the disk and head when not in operation, FIG. 6 is a plan view of the disk unit when not in operation, FIG. 7 is a schematic diagram showing the arrangement of each part of the disk unit, and FIG. (A) is a plan view showing the structure of the head assembly, (B) is a side view, and (C) is a front view. ■... Disk unit, 2... Case, 4... Connection connector (first connection connector), 5
...Control board (disk control circuit), 9...
... Connection connector (second connection connector), 10...
... Disc, 11 ... Spindle motor (motor), 12A
・12B...Head, 13A-13B...Gimbal (head support mechanism), 14...Head arm (head support mechanism)
, 15...Voice coil motor section (actuator), 16A/16B...Guide plate (guide means), 18...Spring (biasing means).

Claims (1)

[Scope of Claims] A disk, a motor that rotationally drives the disk, a head that writes or reads information to or from the disk, a head support mechanism equipped with the head, and a head support mechanism that moves in the radial direction of the disk. a first line to which a line from the actuator to be moved, the motor, and the actuator is connected;
a disk unit having a connection connector; and the first disk unit.
It has a second connecting connector that is paired with the first connecting connector.
and a case in which the disk unit is removably housed by connecting second connection connectors, and a disk control circuit that supplies electrical signals to the disk unit housed in the case via the first and second connection connectors. An information recording device comprising: a guide means provided on the head support mechanism, a guide means provided on the head support mechanism; and a guide means provided outside the outer periphery of the disk, the actuator an engaging means that engages the guide means by the urging force of the urging means to separate the head support mechanism from the disk surface and disengage the head from the disk surface when energization is stopped; An information recording device comprising: