JPH11120661A - Disk drive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability while keeping the insertion attitude of a disk cartridge constant and also to prevent the mechanical part from being damaged, by forming the loading mechanism by which one end of a disk cartridge holder at the inserting port side is freely turnably held. SOLUTION: When the disk cartridge is inserted to the cartridge loading mechanism 7, an eject member 17 is slid forward and a cam pin is moved to the inclined part from the horizontal part of a cam hole, and the cartridge holder 16 is turned counterclockwise making a supporter 15 as the fulcrum, then the loading mechanism 7 becomes in the horizontal state. The cartridge loaded into the loading part 16e is thereby made to be in the fixed state to position the cartridge, and also a recording/reproducing mechanism and a disk driving mechanism are entered from an opening part for recording/reproducing and an opening part for driving which are opened by a shutter driving lever 18, then the cartridge is pressurized downward by a pressurizing member 20. Meanwhile, the cartridge holder 16 at the time before the cartridge is inserted, is in the front down state slightly turning clockwise by an eject spring 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cartridge in which a disk-shaped recording medium on which information signals and the like are recorded is rotatably housed in a cartridge, and the information signal recorded on the disk-shaped recording medium is mounted. Disc drive having a novel configuration for reproducing information or recording information signals or the like on the disc-shaped recording medium, and particularly suitable for a disc drive using a disc-shaped recording medium with high density recording and high recording capacity. Related to the device.

[0002]

2. Description of the Related Art Disk-shaped recording media such as optical disks, magneto-optical disks, and flexible disks are used as external storage devices in computer devices and word processor devices. The disk-shaped recording medium is generally rotatably housed in a cartridge, and is loaded into a disk drive device provided in a main device to record and reproduce information signals and the like. The disk drive device holds a disk cartridge inserted from a cartridge insertion slot provided in a housing by a cartridge holder, loads the disk cartridge into a predetermined position inside, and transmits an information signal or the like recorded on a disk-shaped recording medium by a recording / reproducing mechanism. It reproduces or records information signals or the like on a disk-shaped recording medium.

Incidentally, large-sized computer devices include, for example, an external storage device using a hard disk formed of a glass substrate, an aluminum substrate, or the like as a disk-shaped recording medium and capable of high-density recording of information signals and a high recording capacity. A server for storing various information signals and the like is provided. In a disk drive device using such a hard disk, a hard disk for achieving high-density recording of information signals and the like is driven to rotate at a high speed, and a magnetic head is mounted on the hard disk by 20 nm to 50 nm.
It is configured to perform recording and reproduction of information signals and the like while being held in a state in which it floats to a degree.

That is, in a disk drive device, a magnetic head is generally in a state in which a hard disk is in light contact with the main surface when the hard disk is not rotating, and floats from the main surface by an air flow generated when the hard disk is rotationally driven. So-called contacts
A flying magnetic head device of a start / stop type is provided. The disk drive device is equipped with such a floating magnetic head device to prevent wear or damage of a hard disk or head driven at high speed, and to record / reproduce information signals with high accuracy to guarantee high reliability. doing.

[0005] Large computer devices have been developed as devices for processing extremely valuable data at high speed.
It is assumed that it will be used under extremely high environmental conditions. Therefore, a disk cartridge containing a hard disk is also provided with an extremely high-precision dust-proof structure, and is expensive, large and heavy. The above-mentioned floating magnetic head device has been widely adopted in a disk drive device of a computer device having a relatively low capacity because of its simple configuration and stable operation.

On the other hand, in a personal computer device, a word processor device and the like, an external storage device is
Generally, a disk drive device using a flexible disk which has a simple structure and is easy to handle is provided. 2. Description of the Related Art A disk drive device is configured such that a magnetic head records and reproduces information signals and the like while a contact state is maintained on a main surface of a flexible disk which is driven to rotate at a low speed. Since the disk drive device records and reproduces information signals and the like while maintaining the magnetic head in contact with the flexible disk, the efficiency of the magnetic characteristics is improved and the reliability is further improved.

[0007] Meanwhile, personal computer apparatuses are easily used for personal use with the simplicity of operation at a small size, light weight, low cost, and the maintenance and enhancement of a network, and the use thereof is remarkable. And
Personal computer devices handle a wide range of information data, such as multi-data such as image data and graphics data, as well as conventional document data and numeric data, as well as large computer devices. . Under such circumstances, a personal computer device is also provided with a disk-exchangeable external storage device capable of achieving high-density recording of information signals and the like and a high recording capacity, that is, a removable recording medium and its drive device.

[0008] For this reason, in the case of a flexible disk and its disk drive device, the recording density of information signals and the like has been increased due to the advancement of technical development related to heads and disks in response to the above-mentioned request for a removable recording / reproducing device for a personal computer. Have risen epoch-makingly. For example, a 3.5-inch diameter flexible disk and its disk drive have conventionally had a storage capacity of 1.44 Mbytes and a linear recording density of 17.
The basic specifications were 4 KBPI, a track density of 135 TPI, a disk rotation speed of 300 rpm, and the like. In the flexible disk and the disk drive device, a 3.5-inch diameter flexible disk is similarly used for the conventional specification. For example, the flexible disk has a storage capacity of 100 Mbytes, a linear recording density of 43.3 KBPI, and a track. The density is set to 2118 TPI, and the flexible disk is rotated at a rotational speed of 3600 rpm.
By rotating at a high speed of m, high density recording of information signals and the like and high recording capacity are achieved.

[0009]

In a disk drive device, a cartridge holder provided with a cartridge loading portion is generally rotatably supported by a fulcrum provided on the back side with respect to the insertion direction of the disk cartridge. Structure is adopted. Therefore, the disk drive device has a problem that the disk cartridge to be inserted from the cartridge insertion slot is inserted downward in a rotating state, resulting in an unnatural insertion posture and poor operability. Further, the disk drive device has a problem that the disk cartridge itself, the fulcrum of the cartridge holder, or an internal mechanism is damaged by the disk cartridge inserted in an unnatural posture.

On the other hand, the disk drive device rotates a flexible disk having a narrow recording track at a high speed in response to the above-described high-density recording of information signals and the like, and increases the recording capacity. It is necessary to take measures to record and reproduce information signals and the like while holding the magnetic head floating above the disk surface, as in the hard disk drive device, in order to prevent damage to the flexible disk and the flexible disk. In a disk drive device, in order to reduce the spacing loss and maintain the recording / reproducing characteristics of an information signal and the like, as in the case of the low-density recording specification, the magnetic head and the flexible disk are kept in contact with each other to maintain the information signal and the like. It is preferable to perform the recording / reproducing.

However, in the disk drive device, by adopting a structure in which the magnetic head and the flexible disk are kept in contact with each other to record and reproduce information signals and the like, high-density recording and high recording capacity can be achieved. There is a problem that the recording and reproduction characteristics of information signals and the like are deteriorated due to the influence of slight and minute dust or the like attached to the main surface of the flexible disk.

In a disk drive device,
When the above-mentioned floating head device of the contact start / stop type is provided, a so-called linking phenomenon in which the head is stuck to the main surface of the disk-shaped recording medium may occur. As a result, in the disk drive device, a situation may occur in which the disk-shaped recording medium is not started. Further, in the disk drive device, when the disk-shaped recording medium is forcibly rotated in a state where the linking phenomenon occurs, a situation may occur in which the magnetic head is separated from the suspension member.

The disk-shaped recording medium is required to maintain its main surface in a stable state with respect to the head as the high-density recording of information signals and the like and the increase in recording capacity described above are performed, and the surface roughness is increased. Is configured to lower. Therefore, in the disk-shaped recording medium, the linking phenomenon of the head is more likely to occur due to such measures. For this reason, in the disk-shaped recording medium, measures are taken to prevent the linking phenomenon from occurring by, for example, making only the landing area of the head rough. However, the disk-shaped recording medium has a problem in that, due to such measures, the number of processing steps for the rough surface increases and the cost increases, and the recording area for information signals and the like decreases, making it difficult to increase the storage capacity. .

As a countermeasure against the head linking phenomenon described above, the disk drive device holds the head at the first position retracted from the main surface when the disk-shaped recording medium is not rotating, and rotates the disk-shaped recording medium. Then, a head loading mechanism in which the head is moved to a predetermined position on the main surface is also being studied. The head loading mechanism is configured such that, for example, a suspension member abuts a holding member having an inclined guide surface to hold the head in a state of being separated from the disk-shaped recording medium.
Therefore, such a head loading mechanism requires a large torque as a whole because it requires a force for pushing up the suspension member to the inclined guide surface of the holding member, a force for moving the head toward and away from the disk-shaped recording medium, and requires a large driving source. Become

In a conventional disk drive device, a spindle motor for rotating a disk-shaped recording medium is supplied as a completed motor, which is mounted on an equipment chassis and is electrically connected to a circuit board by lead wires or the like. Was. Therefore, the disk drive apparatus has a problem that the structure of the device chassis and the arrangement of each mechanism are limited by the specifications of the spindle motor, and the soldering process of lead wires and the like is required and the assembling process is also limited. . Such a problem greatly affects the mass productivity of the disk drive device.

As described above, the disk drive device has various problems associated with high-density recording, high recording capacity, and high-speed rotation of the disk-shaped recording medium.
These must be resolved.

The present invention has been proposed for the purpose of providing a disk drive device having a novel configuration that solves the various problems described above. In particular, the present invention enables high-speed and high-precision recording and reproduction of information signals and the like to be performed on a disk-shaped recording medium with high-density recording and high recording capacity, and improves operability or reliability. It has been proposed for the purpose of providing a disk drive device having a simple structure with improved assemblability and mass productivity.

[0018]

According to the present invention, there is provided a disk drive apparatus comprising a cartridge loading mechanism, a disk drive mechanism, a recording / reproducing mechanism, a head drive mechanism, and a head holding mechanism. Each of these mechanisms is assembled into a mechanism chassis.

The cartridge loading mechanism has a cartridge loading section and a cartridge holder rotatably supported at one end on the cartridge insertion port side. A disk in which a disk-shaped recording medium is rotatably stored in the cartridge holder. The cartridge is loaded.

The disk drive mechanism has a disk table and a brushless spindle motor, holds the disk-shaped recording medium of the disk cartridge loaded in the cartridge holder, and rotates it at high speed.

The recording / reproducing mechanism has a head, a suspension, and a suspension support member, and records and reproduces information signals and the like on a rotationally driven disk-shaped recording medium with the head slightly floating above the main surface. It is configured to be supported by a suspension to perform.

The head drive mechanism is provided on a suspension support member of the recording / reproducing mechanism, and moves the recording / reproducing mechanism between a first position where the recording / reproducing mechanism is withdrawn from the disk cartridge and a second position where the recording / reproducing mechanism is inserted into the disk cartridge. . The head drive mechanism moves the recording / reproducing mechanism from the second position along the main surface of the disc-shaped recording medium to perform a seek operation so as to record and reproduce information signals and the like.

The head holding mechanism has a holding member with which a suspension member of the recording / reproducing mechanism is relatively engaged, and holds the recording / reproducing mechanism at a first position retracted from the disk cartridge when the disk-shaped recording medium is not rotating. .

According to the disk drive apparatus of the present invention constructed as described above, the cartridge holder is rotatably supported on the cartridge insertion port side, so that the insertion posture of the disk cartridge can be adjusted in the cartridge loading section of the cartridge holder. The disc cartridge is kept in a constant state until the disc cartridge is loaded into the disc cartridge, and the disc cartridge is loaded in a natural state without difficulty. The disk drive device switches and drives the recording / reproducing mechanism between the first position and the second position with a low torque by the head driving mechanism,
High-precision recording and reproduction of information signals and the like are performed by a head having flying characteristics on a disk-shaped recording medium with high density recording and high recording capacity of information signals and the like driven to rotate at high speed. .

In the disk drive device, when the disk-shaped recording medium is not rotating, the head is held at the first position by the head holding mechanism. Therefore, the occurrence of the ringing phenomenon of the head is reliably prevented, and the reliability is improved. It is planned.
In the disk drive device, a spindle motor is easily assembled with a mechanism chassis as a mechanical component together with components of another mechanism, and the electrical connection thereof is easily performed, so that the assembly process is rationalized.

[0026]

Embodiments of the present invention will be described below in detail with reference to the drawings. In addition, the terms indicating positions such as up and down, left and right, and front and rear used in the following description are based on FIG. As shown in FIGS. 1 and 2, a disk drive device 1 shown as an embodiment has a horizontally long rectangular tubular housing body 2 formed by combining an upper housing half 2 a and a lower housing half 2 b, The front panel 3 assembled to the front opening and the rear panel 4 assembled to the rear opening constitute a rectangular box-shaped housing. The disk drive device 1 has a front panel 3
The disk cartridge 100 is loaded from a horizontally long rectangular cartridge insertion port 3a provided in the printer. As shown in FIG. 2, the disk drive device 1 is provided with an input / output connector 5 on the back panel 4.
18 and are connected to various information processing devices as shown in FIG.

That is, as shown in FIG. 18A, the disk drive device 1 is incorporated in a hand-held personal computer device 200 to constitute a removable disk device. As shown in FIG. 1B, the disk drive device 1 is incorporated in a desktop computer device 201 to constitute a removable disk device. The disk drive device 1 is a 3.5-inch flexible disk 1 that is small, lightweight, and highly versatile.
Since the disc cartridge 100 containing the disc 04 is used, the disc cartridge 100 is mounted on a camcorder or a digital camera 202, for example, as shown in FIG. further,
The disk drive device 1 is used by being mounted on an audio recorder 203, for example, as shown in FIG. Of course, for the flexible disk 104,
The diameter is not limited to 3.5 inches, but various diameters may be used.

First, details of the disk cartridge 100 loaded in the disk drive device 1 will be described with reference to FIG.
This will be described with reference to FIGS. The disc cartridge 100 is formed by integrally combining an upper half 102 and a lower half 103 formed of a synthetic resin, and is provided with a cartridge 101 having a thin box shape as a whole, and a disk storage space 105 formed inside the cartridge 101. Flexible disk 1 stored freely
04. As shown in FIGS. 15 and 17, the cartridge 101 includes a front part 101a having a semicircular shape and a rectangular rear part 101b.

As shown in FIG. 15, the cartridge 101 has a rectangular recording / reproducing opening 1 at the front of the front portion 101a.
16, a circular disk drive opening 107 is provided at the center of the bottom of the front part 101a as shown in FIG. As shown in FIG. 15, the cartridge 102 is provided with a shutter opening guide groove 108 on one side surface from the front part 101a to the rear part 101b. Recording / reproducing aperture 1
Reference numeral 06 is opened and closed by a shutter portion 109a integrally formed with a first shutter member 109 rotatably mounted in the cartridge 101. The disk drive opening 107 is opened and closed by a shutter portion 110a integrally formed with a second shutter member 110 rotatably assembled in the cartridge 101. A shutter driving piece 109b formed integrally with the first shutter member 109 faces the shutter opening guide groove 108.

As shown in FIG. 17, the upper half 102 has a semicircular portion 102a on the front side and a rectangular portion 10a on the rear side.
2b, and a rising peripheral wall 102c is integrally provided over the entire outer peripheral edge. On the upper half 102, an annular convex portion 111 is integrally provided at the center of the semicircular portion 102a. Annular convex part 1
11 is the rotation fulcrum of the flexible disk 104 and the first
Of the shutter member 109 of FIG. On the inner surface of the rectangular portion 102b, the upper half 102 has an arc-shaped standing wall 102d standing on the same circumference as the rising peripheral wall 102c on the side of the semicircular portion 102a. Standing wall 102
d constitutes an upper portion of the disk storage space portion 105 in cooperation with the rising peripheral wall 102c on the side of the semicircular portion 102a.

The upper half 102 has a semicircular portion 10
A rectangular notch 102e is formed at the center of the rising peripheral wall 102c on the 2a side. The notch 102 e forms a portion above the recording / reproducing opening 106. The upper half 102 has a right rising peripheral wall 102 of a rectangular portion 102b.
A concave groove 102f in the front-rear direction is formed in c. A guide wall 102g facing the rising peripheral wall 102c is integrally provided upright on the rectangular portion 102b so as to form the bottom surface of the concave groove 102f. These concave groove 102f and guide wall 1
02g constitutes the upper part of the shutter opening guide groove 108.

The upper half 102 has a rectangular portion 102
A spring retaining portion 102h is provided upright at one corner formed by the rising peripheral wall 102c and the standing wall 102d. Although not shown, the upper half 102 is integrally formed with a plurality of studs and engagement pins for integrating with the lower half 103.

As shown in FIG. 17, the lower half 103 also has a semicircular portion 103a on the front side and a rectangular portion 103 on the rear side.
b, and a rising peripheral wall 103c is integrally provided over the entire outer peripheral edge. The lower half 103 has a disk drive opening 107 formed at the center of the semicircular portion 103a. The lower half 103 has an arc-shaped standing wall 10 corresponding to the standing wall 102d of the upper half 102 on the inner surface of the rectangular portion 103b.
3d is erected. The standing wall 103d has a semicircular portion 1
The lower part of the disk storage space 105 is formed in cooperation with the rising peripheral wall 103c on the 03a side.

The lower half 103 has a semicircular portion 103
A rectangular notch 103e is formed at the center of the rising peripheral wall 103c on the a side. The notch 103e forms a portion above the recording / reproducing opening 106. Lower half 1
In 03, a concave groove 103f in the front-rear direction is formed on the right rising peripheral wall 103c of the rectangular portion 103b. Rectangular part 1
In 03b, a guide wall 103g facing the rising peripheral wall 103c so as to form the bottom surface of the concave groove 103f is integrally provided upright corresponding to the guide wall 102g of the upper half 102. These concave groove 103f and guide wall 103g
Constitutes a lower portion of the shutter opening guide groove 108.

The lower half 103 has a rectangular portion 103b.
A spring retaining portion 103h is provided upright at one corner formed by the rising peripheral wall 103c and the standing wall 103d. In the lower half 103, positioning holes 103i, 103i are located on both sides of a rear portion of the rectangular portion 103b.
Is provided. In the lower half 103, a fulcrum boss 113 constituting a rotation fulcrum of the second shutter member 110 is integrally erected on an inner surface at a position facing the notch 103e with the disk drive opening 107 interposed therebetween. Although not shown, the lower half 103 is provided with a plurality of studs and engagement holes corresponding to the studs and the engagement pins of the upper half 102.

The upper half 10 constructed as described above
2 and the lower half 103, each semicircular part 10
2a, 103a and the rectangular portions 102b, 103b are opposed to each other and are assembled by abutting the rising peripheral walls 102c, 103c. The upper half 102 and the lower half 103 have the studs facing each other, the engaging pins and the engaging holes are engaged with each other, and the set screw is screwed in from the lower half 103 side to be integrated to form the cartridge 101.

The first shutter member 109 is assembled to the upper half 102. First shutter member 10
Numeral 9 is made of a synthetic resin or a thin metal plate as a material, and is formed to have a substantially semicircular shape whose outer diameter is slightly smaller than the outer diameter of the flexible disk 104. The first shutter member 109 has a shutter portion 1 sufficient to close the recording / reproducing opening 106 on the outer peripheral edge of the semicircular main surface portion 109c.
09a are integrally formed so as to rise. The first shutter member 109 has a fulcrum shaft hole 109d formed at the center thereof, the hole diameter of which is slightly larger than the outer diameter of the annular projection 111.

The first shutter member 109 is integrally formed with a band-like elastic displacement portion 109e from one end of the shutter portion 109a along the main surface portion 109c. When the first shutter member 109 is assembled to the upper half 102, the elastic displacement portion 109e
It extends in a curved state along the inner surface of the rising peripheral wall 102c between the groove 102f and the groove 102f. In the elastic displacement portion 109e,
A shutter driving piece 109b is integrally formed at the tip, and when the first shutter member 109 is assembled to the upper half 102, the shutter opening guide groove 10b is formed.
8 located at the open front end.

The first shutter member 109 has a spring engaging portion 109 on an outer peripheral edge facing the shutter portion 109a.
f is formed integrally. Spring hook 109f
In the state where the first shutter member 109 is assembled to the upper half 102,
c and the first shutter spring 1
14 is a spring retaining portion 102h of the upper half 102
Are multiplied under tension. The first shutter member 109 is urged counterclockwise by the elastic force of the first shutter spring 114.

The first shutter member 109 configured as described above is rotatably combined with the upper half 102 by fitting the fulcrum shaft hole 109d to the outer peripheral portion of the annular convex portion 111. The first shutter member 109 is moved by the elastic force of the first shutter spring 114 as shown in FIG.
, The shutter driving piece 1
09b is locked at this position by contacting the rising peripheral wall 102c at the front end of the shutter opening guide groove 108. At this position, the first shutter member 109 is held in a state where the shutter 109 a closes the recording / reproducing opening 106.

The second shutter member 110 is also formed by using a synthetic resin or a thin metal plate as a material, and is formed to have a substantially rectangular shape which is thinner and slightly longer than the outer diameter of the flexible disk 104. The second shutter member 110 is formed in a substantially circular shape so that one end thereof has an outer shape sufficient to close the disk drive opening 107, and a shutter portion 110a is formed. The second shutter member 110 corresponds to the fulcrum boss 113 formed in the lower half 103 and supports the fulcrum shaft hole 1.
10b is formed, and a spring hook 110c is formed at the other end.

The second shutter member 110 is connected to the fulcrum shaft hole 1.
By fitting 10b to the fulcrum boss 113, it is rotatably combined with the lower half 103. A second shutter spring 115 is engaged with the second shutter member 110 in a tension state between the spring engagement portion 110c and the spring engagement portion 103h of the lower half 103. The second shutter member 110 is urged clockwise in FIG. 17 by the elastic force of the second shutter spring 115, but is locked at this position by the side end abutting on one of the upright walls 103d, and Part 110a
Are kept closed with the disk drive opening 107 closed.

The flexible disk 104 is a 3.5-inch diameter flexible disk that is widely used. For example, the storage capacity is 100 Mbytes, the linear recording density is 43.3 KBPI, the track density is 2118 TPI, and the disk drive 1 The rotation speed is 360
This is a flexible disk that has achieved high-density recording and high-capacity recording of information signals and the like that are rotationally driven at a high speed of 0 rpm. The flexible disk 104 includes the disk substrate 10
A center hub 116 formed in a substantially cup shape by a magnetic material is attached to a center hole provided in 4a. The flexible disk 104 constitutes the disk cartridge 100 by fitting the convex portion of the center hub 116 into the annular convex portion 111 of the upper half 102 and storing the flexible disk 104 in the disk storage space 105 of the cartridge 101.

In the disk cartridge 100, the center hub 116 is opposed to the disk drive opening 107 when the flexible disk 104 is stored in the disk storage space 105. As described above, the disk cartridge 100 does not expose the flexible disk 104 to the outside because the disk drive opening 107 is closed by the second shutter member 110 as described above.
The disk cartridge 100 has a recording / reproducing opening 106
Is closed by the first shutter member 109, so that the disk storage space 112, in other words, the flexible disk 104 is not exposed to the outside. Therefore,
The disc cartridge 100 includes the first shutter member 1
When the opening is closed by the second shutter member 09 and the second shutter member 110, dust and the like are prevented from entering the inside and adhering to the flexible disk 104, and at the same time, scratches and the like are prevented.

When the disc cartridge 100 is loaded into the disc drive 1 to be described later, the first shutter member 109 and the second shutter member 110 are rotated, and the recording / reproducing opening 106 and the disc driving opening 106 are rotated. 10
7 are released. In the disk cartridge 100,
The recording / reproducing mechanism 9, which will be described in detail later, enters from the opened recording / reproducing opening 106, and records and reproduces information signals and the like on the flexible disk 104. The disk cartridge 100 has an open disk drive opening 1.
From 07, a disk drive mechanism 8, which will be described in detail later, enters and holds and rotates the flexible disk 104.

As shown in FIG. 1, the disk cartridge 100 is loaded from the cartridge insertion slot 3a of the disk drive 1 with the semicircular front part 101a as the insertion side. The disc cartridge 100 is reliably prevented from being erroneously loaded into the disc drive device 1 by the characteristic shape of the cartridge 101. Although the details will be described later, the shutter driving piece 109b of the disk cartridge 100 is pressed by the cartridge loading mechanism 7, and the first shutter member 109 is moved to the first shutter spring 1
14, the recording / reproducing opening 1
06 is released. The disc cartridge 100 is moved to the second shutter member 1 via the first shutter member 109.
10 is rotated against the elastic force of the second shutter spring 115 to open the disk drive opening 107.

When the disk cartridge 100 is ejected, the cartridge loading mechanism 7 pushes the disk cartridge 100 out of the disk drive 1 through the cartridge insertion slot 3a. Disk cartridge 100
As a result, the first shutter member 109 and the second shutter member 110 return to the initial state by the elastic force of the first shutter spring 114 and the second shutter spring 115, respectively. The disc cartridge 100 includes the first shutter spring 114
The recording / reproducing opening 106 and the disk drive opening 107 are closed by the elastic force of the second shutter spring 115.

The disk drive 1 for driving the above-described disk cartridge 100 includes a mechanism chassis 6 assembled on the lower housing half 2b.
As shown in FIG. 1, a cartridge loading mechanism 7, a disk drive mechanism 8, a recording / reproducing mechanism 9, a head drive mechanism 10, and a head holding mechanism 11, which will be described in detail later, are assembled to the mechanism chassis 6. The disk drive device 1 includes a circuit board 12 on which a circuit element, an electric component, and the like constituting a head drive circuit element, a control circuit, a power supply circuit, and the like are appropriately mounted and a printed wiring is formed on a main surface of a mechanism chassis 6. Are combined in a stacked state.

The disk drive device 1 has the cartridge insertion slot 3a opened in the front panel 3 as described above, and the disk cartridge 10 as shown in FIG.
An eject operation button 3b for ejecting 0 is provided with its operation part exposed from the operation hole 3c. The ejection operation button 3b is provided in the cartridge loading mechanism 7 as will be described in detail later, and its operation part is normally slightly protruded from the front panel 3. When the disc drive 100 is loaded with the disc cartridge 100, the eject operation button 3b is in a state in which the operation portion thereof protrudes greatly from the front panel 3 as described later.

The disk drive device 1 is provided with a cover member 13 at the cartridge insertion slot 3a, and the cartridge insertion slot 3a is normally closed by the cover member 13. As shown in FIG. 3, the cover member 13 is provided on the inner surface of the front panel 3 with the cartridge insertion opening 3.
It is rotatably supported by a support shaft 13a supported by a bearing portion 3d integrally protruding with respect to a. Cover member 13
Is a torsion spring 13b mounted on the support shaft 13a.
Urged in a direction to close the cartridge insertion opening 3a. When the disk cartridge 100 is inserted from the cartridge insertion slot 3a, the cover member 13 is rotated against the elastic force of the torsion spring 13b to open the cartridge insertion slot 3a as shown by a chain line in FIG.

As shown in FIG. 2, the input / output connector 5 is attached to the rear panel 4 so that the connection portion is exposed to the outside through the attachment opening 4a. The back panel 4 is shown in FIG.
As shown in (1), it is assembled to the rear end of the mechanism chassis 6 whose details will be described later, and is combined with the housing body 2 via the mechanism chassis 6. Although not shown, for example, a power switch and other connectors are provided on the rear panel 4 as necessary.

The mechanism chassis 6 is formed of a metal plate. As shown in FIGS. 4 and 6, side walls 6a, 6a facing both sides of the housing main body 2 are formed upright on both sides of the front part. In the mechanism chassis 6, a front area 6b surrounded by the side walls 6a, 6a is used as an area for mounting the cartridge loading mechanism 7 and the disk drive mechanism 8, and a rear area 6c is used as a recording / reproducing mechanism 9, a head drive mechanism 10.
And as an area in which the head holding mechanism 11 is incorporated.

In the mechanism chassis 6, the shaft holes 6d, 6d are located on the same axis line in front of the side walls 6a, 6a.
Are formed. The mechanism chassis 6 is provided with a pair of pivot pins 6e, 6e projecting from one side wall 6a in the front-rear direction. The mechanism chassis 6 is integrally provided with positioning studs 14a and 14b for positioning and holding the loaded disk cartridge 100 located in the front region.

The mechanism chassis 6 rotatably supports a cartridge holder 16 of a cartridge loading mechanism 7 to be described later in a cantilevered state by a support shaft 15 supported by the shaft holes 6d, 6d. The mechanism chassis 6 supports the eject member 17 of the cartridge loading mechanism 7 slidably in the front-rear direction by the support pins 6e. The positioning studs 14a and 14b position the disk cartridge 100 by engaging with positioning holes 103i formed in a rear portion 101b of the disk cartridge 100 loaded in the cartridge loading mechanism 7.

The cartridge loading mechanism 7 is shown in FIGS.
As shown in detail in FIG. 1, the apparatus includes a cartridge holder 16, an ejection member 17, a shutter drive lever 18, and a lock member 19. The cartridge loading mechanism 7 includes a cartridge pressing member 20 assembled to the cartridge holder 16, an eject spring 21, and a lock spring 22. The cartridge holder 16 is formed of a metal plate, and has a main surface 16a, both side surfaces 16b, 16c, and holding portions 16d, 16d formed by bending horizontally from lower ends of the both side surfaces 16b, 16c. And has a substantially downward U-shape.

The cartridge holder 16 is provided on both sides 16.
The distance between the opposed portions b and 16c is slightly larger than the width of the disk cartridge 100, and the distance between the opposed holding portions 16d and 16d is slightly smaller than the width of the disk cartridge 100.
6e. As shown in FIGS. 7 and 9, the cartridge loading section 16e
Of the rear part 101b.

The cartridge holder 16 has a main surface 16
a, a rectangular opening 1 facing the cartridge loading portion 16e.
6f is provided. In the cartridge holder 16,
Shaft holes 16g, 16g having the same axis are formed in front of both side portions 16b, 16c. The cartridge holder 16 has a guide notch 16 on one side 16b.
h is provided. The cartridge holder 16 has a first spring retaining portion 16i formed on the front edge of the main surface portion 16a and a second spring retaining portion 16j located slightly behind the guide notch 16h. I have. The cartridge holder 16 has one side 16b.
The cam pin 16k is located behind the guide notch 16h.
Is protruding.

As shown in FIGS. 7 and 8, the cartridge holder 16 configured as described above is
When the shaft holes 16g, 16g penetrate through the support shaft 15 mounted on the mechanism chassis 6, the front portion thereof is rotatably supported in a cantilever state with respect to the mechanism chassis 6. A cartridge pressing member 20 is attached to the main surface portion 16a of the cartridge holder 16. The cartridge pressing member 20 is formed in a substantially U-shape by a leaf spring, and has a distal end portion attached to the cartridge loading portion 16e, specifically, the disk drive mechanism 8 via the opening 16f. The cartridge holder 16 has a guide notch 16 on one side 16b.
h, the shutter drive lever 18 is attached.

The cartridge holder 16 has a main surface 16
The lock member 19 is rotatably attached to a by a support pin 19a. The cartridge holder 16 has an ejection member 1 extending over a main surface portion 16a and one side surface portion 16b.
7 are slidably combined in the front-back direction. The cartridge holder 16 has a first spring engaging portion 16i.
, One end of the eject spring 21 is hooked.
One end of a lock spring 22 is hooked on the second spring hooking portion 16j of the cartridge holder 16.

Although the details will be described later, the cartridge holder 16 is moved by the elastic force of the eject spring 21 as shown in FIG.
The device chassis 6 is rotated slightly clockwise at
Supported by In other words, the cartridge holder 16
As shown in FIG. 8, the rear part is located slightly above and is in a state of falling forward. In addition, the cartridge holder 16
The cartridge loading section 16 e faces the cartridge insertion section 3 a of the front panel 3 and is supported by the mechanism chassis 6.

As shown in FIGS. 6 and 11, the ejection member 17 is made of a metal plate or a synthetic resin.
And a side surface portion 17b orthogonal to the main surface portion 17a. Main surface 17a
Slides along the main surface 16a of the cartridge holder 16. The side surface portion 17b extends and slides between the inner surface of the one side wall 6a of the mechanism chassis 6 and the one side surface portion 16b of the cartridge holder 16. The eject member 17 has a spring retaining portion 1 at the rear end of the main surface portion 16a.
7c is formed. In addition, the ejection member 17 has an ejection operation button 3b at the tip of the main surface 16a.
A button mounting portion 17d to which the button is mounted is formed.

The ejection member 17 has a longitudinal guide hole 17e formed at the front end of the side surface portion 17b, and is located on an extension of the guide hole 17e and has a longitudinal end at the rear end. A guide hole 17f formed of a hole is formed. A cam hole 17g is formed in the eject member 17 between the guide holes 17e and 17f of the side surface portion 17b. The cam hole 17g has a substantially rectangular shape formed by a horizontal hole and an inclined hole that is bent and connected downward at the rear end. Also, the eject member 17
, An engaging portion 17h is formed by providing a step at the side end of the main surface portion 17a.

Ejection member 1 configured as described above
Reference numeral 7 denotes a spring in which the cam pin 16k is relatively engaged with the cam hole 17g, and the other end of the eject spring 21 whose one end is hooked on the spring hook 16i of the cartridge holder 16 as described above is pulled. By being hooked on the hook portion 17c, the cartridge holder 16 is assembled with the cartridge holder 16 in a state of being urged forward. The guide holes 17e and 17f of the eject member 17 are relatively engaged with the support pins 6e and 6e, respectively, in a state where the cartridge holder 16 is assembled to the mechanism chassis 6. The eject member 17 includes guide holes 17e,
It is slidable in the front-back direction within the length range of 17f.

As shown in FIG. 11, the shutter drive lever 18 is formed of a substantially plate-like member slightly smaller than the length in the front-rear direction of the guide notch 16h formed on one side surface 16b of the cartridge holder 16. Shutter drive lever 1
8, a shutter driving portion 18a projecting into the cartridge loading portion 16e is integrally formed at the front end thereof. The shutter drive lever 18 has an engaging recess 18b at the upper end thereof, which is formed at a position corresponding to the guide notch 16h by a protrusion formed to be spaced apart in the front-rear direction. Further, the shutter drive lever 18 is provided with guide holes 18c, 18c formed of long holes in the front-rear direction through which the support pins 6e, 6e of the mechanism chassis 6 penetrate. The shutter drive lever 18 is slidable in the front-rear direction within the length range of the guide holes 18c, 18c.

The lock member 19 is a member formed in a substantially L-shape as a whole, and its central portion is rotatably supported by the main surface portion 16a of the cartridge holder 16 by a fulcrum pin 19a. The lock member 19 is configured as an engaging portion 19b having one end extending toward the one side surface 16b of the cartridge holder 16 and being relatively engaged with the engaging concave portion 18b of the shutter drive lever 18. The lock member 19 has a spring retaining portion 19c formed at a portion extending rearward. The lock member 19 includes the spring hook 1
The lock portion 19d is formed by bending the tip of 6j upward.

The lock member 19 is used for the cartridge holder 1.
By locking the other end of the lock spring 22 having one end hooked to the spring hooking portion 16j of the sixth lock onto the spring hooking portion 19c in a tensioned state, the lock spring 22 is assembled with the cartridge holder 16. When the lock member 19 is assembled with the cartridge holder 16, the lock portion 19d is relatively engaged with the engagement portion 17h of the eject member 17 as shown in FIG.
Is held in a locked state.

The lock spring 22 is connected to the lock member 19.
In FIG. 6, a counterclockwise elastic force is applied. The lock member 19 presses the shutter drive lever 18 toward the front side of the guide notch 16h via the engagement portion 19b.

As shown in FIG. 7, the cartridge loading mechanism 7 having the above-described structure
00 is inserted from the cartridge insertion slot 3a with the circular front part 101a as the insertion side, and the cartridge holder 1
6 is loaded in the cartridge loading section 6e. The disk cartridge 100 is inserted from the cartridge insertion opening 3a in a slightly upward state as shown by a chain line in FIGS. 5 and 8, but there is hardly any displacement in the thickness direction of the front portion serving as the holding position and the pressing contact. Disk cartridge 100
Although the cartridge holder 16 rotates slightly as it is inserted, the cartridge holder 16 rotates slightly in the counterclockwise direction, but the cartridge holder 16 is inserted without a sense of incongruity and with a good operational feeling.

The disk drive device 1 is configured to load the disk cartridge 100 therein by a so-called front-loading method.
The cartridge insertion opening 3a can be configured with the minimum opening size, and the intrusion of dust and the like is suppressed, and the assembly position of each mechanism is not restricted, so that the apparatus can be reduced in size and the assemblability can be improved.

The cartridge loading mechanism 7 operates the shutter drive lever 1 by loading the disk cartridge 100.
8 is relatively engaged with the shutter opening guide groove 108 of the disc cartridge 100.
The shutter drive lever 18 is connected to the disk cartridge 10.
0, the shutter opening guide groove 108 is moved backward in the shutter opening guide groove 108, and the first opening is moved through the shutter driving piece 109b.
Is rotated. The disc cartridge 100 is thereby moved to the first shutter member 1.
The recording / reproducing opening 106 closed by the shutter 109 of FIG. Also, in the disk cartridge 100, the second shutter member 110 is rotated via the first shutter member 109 and
Disk drive opening 107 closed by 0a
Is released. The disk drive device 1 is configured such that the recording / reproducing opening 106 and the disk drive opening 107 are opened immediately before the disk cartridge 100 is loaded at a predetermined position.

In the cartridge loading mechanism 7, the shutter drive lever 18 moves backward in the guide notch 16h immediately before the disk cartridge 100 is loaded at a predetermined position. The shutter drive lever 18 pushes the lock member 19 clockwise as shown by the arrow in FIG. 7 against the elastic force of the lock spring 22 via the engagement portion 19b relatively engaged with the engagement recess 18b. Rotate. Therefore, the cartridge loading mechanism 7 releases the engagement state between the lock portion 19d of the lock member 19 and the engagement portion 17h of the eject member 17, so that the eject member 17
Move forward by the elastic force of the eject spring 21, and the eject operation button 3b is moved to the position shown in FIGS.
As shown in FIG.

The cartridge loading mechanism 7 slides the above-described eject member 17 to move the cam hole 17g.
When the cam pin 16k moves from the horizontal portion to the inclined portion, the cartridge holder 16 rotates counterclockwise in FIG. The cartridge loading mechanism 7 has its rear portion approaching the mechanism chassis 6 due to the rotation of the cartridge holder 16 and is brought into a horizontal state as a whole as shown in FIGS. The cartridge loading mechanism 7 keeps the disc cartridge 100 loaded in the cartridge loading section 16e of the cartridge holder 16 in a constant state. That is, the positioning studs 14 erected on the mechanism chassis 6 have the positioning holes 103.
The recording / reproducing mechanism 9 described later enters from the opened recording / reproducing opening 106 and the disk driving mechanism 8 enters from the disk driving opening 107 while being positioned by being relatively engaged with i. Disk cartridge 100
The central portion is pressed downward by the cartridge pressing member 20.

In the cartridge loading mechanism 7, when the eject operation button 3b is pressed, the eject member 17 slides rearward, and the cam hole 1 is moved.
When the cam pin 16k moves from the inclined portion to the horizontal portion in 7g, the cartridge holder 16 returns to the initial position by the elastic force of the eject spring 21 and rotates. The disc cartridge 100 is moved into the cartridge loading section 16 by the rotation of the cartridge holder 16.
ejected from e. Further, the cartridge loading mechanism 7 is provided with an eject member 17 which has been slid rearward.
The lock portion 19d of the lock member 19 that has been returned and rotated by the elastic force of the lock spring 22 is engaged with the engagement portion 17h.
And re-engage. The eject member 17 is thereby held in a state where it is pushed rearward, and also holds the cartridge holder 16 in an initial state that is slightly inclined.

As shown in FIGS. 4 and 6, the disk drive mechanism 8 is disposed at the center of the front area 6b of the mechanism chassis 6, and is mounted on the cartridge holder 16 of the cartridge mounting mechanism 7. Cartridge 100
The flexible disk 104 that has entered and stored through the disk drive opening 107 is rotated and driven at high speed. The disk drive mechanism 8 includes a disk table 23 and a spindle shaft 24, as shown in FIGS.
And a spindle motor 25 having
The spindle motor 25 is connected to the rotor magnet 2
A pair of rotor yokes 27a, 6a and 26b are joined.
27b, a coil substrate 28, a spacer boss 29, and a bearing member 41.

The disk table 23 has a spindle shaft 2
4 is fixed to the upper end. Disk table 23
Enters through the opened disk drive opening 107 of the disk cartridge 100 and magnetically chucks the center hub 116 of the stored flexible disk 104. The spindle shaft 24 has a spacer boss 29
At the same time, it is rotatably supported by the bearing member 41. Rotor yokes 27a and 27b are fixed to the spindle shaft 24 at the lower end with a coil substrate 28 interposed therebetween. The rotor yokes 27a and 27b are formed in a disk shape having a center hole by a magnetic metal plate, and ring-shaped rotor magnets 26a and 26b are respectively joined to opposing main surfaces. The rotor magnets 26a and 26b are formed by alternately magnetizing N poles and S poles in the rotation direction.

The spacer boss 29 is formed with a step having a slightly large diameter at the center portion. The large diameter center portion penetrates a center hole 28a provided in the coil substrate 28 and is shown in FIGS. 5 and 12. As described above, it is rotatably supported by the bearing member 41 erected and supported by the mechanism chassis 6. The coil substrate 28 is located on the same circumference centered on the center hole 28a and has a plurality of printed coils 28b on its front and back main surfaces.
Are formed. As shown in FIG. 12, a connection terminal portion 28c is formed at a side end of the coil substrate 28.
The coil substrate 28 is combined with the outer periphery of the spacer boss 29 so as to face the mechanism frame 6 in parallel. Therefore, the rotor magnets 26a and 26b joined to the rotor yokes 27a and 27b are opposed to the coil substrate 28 on the printed coil 28b. The coil substrate 28 is in a state where the connection terminal portion 28c faces the connection portion of the circuit board 12 as described in detail later.

When a current is supplied to the print coil 28b, the spindle motor 25
Rotational force is generated on the rotor yokes 27a, 27b by the magnetic flux generated between the rotor y and the rotor magnets 26a, 26b. The spindle motor 25 is a spindle shaft 2 having these rotor yokes 27a and 27b integrated.
4 is supported by the bearing member 41 and driven to rotate. Accordingly, the spindle shaft 24 integrally rotates the disk table 23 and rotates the flexible disk 104 magnetically chucked to the disk table 23 at a high speed.

The disk drive mechanism 8 is configured such that the spindle motor 25 configures a so-called brushless motor by the above-described configuration, and the components are assembled directly to the mechanism frame 6. Therefore, as compared with the case where the spindle motor 25 is supplied as a completed motor, the disk drive mechanism 8 does not impose any restrictions on the assembly part or process of the disk drive device 1 and assembles each mechanism into the mechanism frame 6. In this state, it is possible to perform various inspections and the like.

The recording / reproducing mechanism 9 is disposed in a rear area 6c of the mechanism chassis 6 as shown in FIGS. 6 and 13, and has a pair of suspensions 31a,
31b, and magnetic heads 30a, 30 joined to opposing side surfaces of the suspensions 31a, 31b, respectively.
b and a flexible wiring board 32 for electrically connecting these magnetic heads 30a and 30b. The suspensions 31a and 31b are formed of elastic pieces, and the magnetic heads 30a and 30b are joined to the suspensions 31a and 31b, respectively, near the free end of the surface facing the flexible disk 104. One end of the flexible wiring board 32 is connected to the magnetic heads 30a and 30b,
The connection terminal portion 32a is formed on the other end side.

The recording / reproducing mechanism 9 is driven by a disk drive mechanism 10 to be described later at a first position located outside the loaded disk cartridge 100 shown by a solid line in FIG. 9 and a disk cartridge shown by a chain line in FIG. The rotation operation is performed to the second position that has entered the inside of 100. The recording / reproducing mechanism 9 is held at a first position by a head holding mechanism 11 described later. The recording / reproducing mechanism 9 is rotated by the disk drive mechanism 10 from a second position that has entered the interior of the disk cartridge 100, and the magnetic heads 30a and 30b perform seek operations on the front and back recording surfaces of the flexible disk 104 to achieve high density. The recorded information signal or the like is reproduced or the information signal or the like is recorded at a high density.

The recording / reproducing mechanism 9 includes
The magnetic heads 30a and 30b are held in pseudo contact with the front and back recording surfaces of the flexible disk 104 by the heads a and 31b. The recording / reproducing mechanism 9 includes the head driving mechanism 1
0, the magnetic heads 30a and 30b perform a seek operation on the recording surface of the flexible disk 104 to record and reproduce information signals and the like. The recording / reproducing mechanism 9 is configured such that the suspension 31a,
31b is displaced, and the magnetic heads 30a and 30b
Information signals and the like are recorded / reproduced in a pseudo contact state that floats at a minute interval of about 0 nm.

As shown in FIG. 13, the head drive mechanism 10 has a suspension support member 33 for holding the base ends of the suspensions 31a and 31b of the recording / reproduction mechanism 9 in a state in which they are insulated from each other, and is integrated with the suspension support member 33. Actuator part 34 formed on the yoke member 3
5 and the like. Head drive mechanism 10
The suspensions 31a and 31b are moved by the suspension support member 33 to the respective magnetic heads 30a and 3b.
0b is supported on the front and back main surfaces of the corresponding flexible disk 104 so as to maintain an interval sufficient to establish a pseudo contact state.

The suspension support member 33 is rotatably supported by a bearing member 36 provided at one end of the rear area 6c of the mechanism chassis 6. Suspension support member 3
Reference numeral 3 denotes a bottomed cylindrical shape having a shaft hole slightly larger in diameter than the outer diameter of the bearing member 36, and the upper end of the support shaft 33a is fixed to the upper surface thereof. The suspension support member 33 is rotatably supported by the mechanism chassis 6 by fitting the shaft hole into the bearing member 36. The actuator section 34 includes a cylindrical base 34 a and the cylindrical base 3.
4a, a fan-shaped coil mounting portion 34b integrally protruding from and facing the mechanism chassis 6. Coil mounting part 34
A coil 37 is attached to b.

The yoke member 35 is joined to the mechanism chassis 6 so as to face the coil mounting portion 34b of the actuator portion 34. The yoke member 35 is formed of an arc-shaped magnetic plate located on a circumference having a radius substantially equal to the mounting position of the coil 37 of the actuator section 34 with the bearing member 36 as a center. The yoke member 35 has a pair of magnets 35 a and 3 formed in an arc shape on the opposing surface of the actuator portion 34.
5b are joined. These magnets 35a, 35
b, the yoke members 35 having different polarities from each other.
The upper part is joined adjacently in the length direction.

The head drive mechanism 10 rotates the recording / reproducing mechanism 9 between the first position retreated from the disk cartridge 18 and the second position entering the disk cartridge 100 as described above. The reproducing mechanism 9 is moved to the flexible disk 10 in the second position.
4 is sought in the radial direction. That is, the head driving mechanism 10 is configured to
When the current is supplied to the actuator 7, the suspension support member 33 is rotated via the actuator section 34 by the magnetic flux generated between the magnets 35 a and 35 b and moves to the first position and the second position described above. Be operated. By changing the direction of the current supplied to the coil 37, the head driving mechanism 10 changes the rotation direction, and the magnetic heads 30a and 30b access the recording surface of the flexible disk 104.

The recording / reproducing mechanism 9 is held at a first position where the flexible disk 104 is retracted from the disk cartridge 100 by the disk holding mechanism 11 when the flexible disk 104 is not rotating. The recording / reproducing mechanism 9 is rotated to the second position only when the recording / reproducing operation is performed by rotating the flexible disk 104 to access the front and back recording surfaces of the flexible disk 104 by the magnetic heads 30a and 30b. Is performed. The disk holding mechanism 11 includes a holding member 39 rotatably mounted on a support shaft 38 erected on the mechanism chassis 6.

As shown in FIGS. 13 and 14, the holding member 39 has a cylindrical shape in which holding grooves 39a and 39b are formed on the outer periphery with which the distal ends of the suspensions 31a and 31b are relatively engaged. Presented and formed. Holding groove 39
As shown in FIG. 14, tapers 39c and 39d are formed in the holes a and 39b so that the openings are wide. When the recording / reproducing mechanism 9 rotates, the holding member 39 is configured such that the tip ends of the suspensions 31a and 31b are held by the holding grooves 39a and 31b.
The recording / reproducing mechanism 9 is operated by a small force by rotating and supported by the support shaft 38. Further, the holding member 39 is configured such that when the distal ends of the suspensions 31a and 31b engage with the holding grooves 39a and 39b, the suspension members 31a and 31b are engaged without being caught by the action of the tapers 39c and 39d. The disk drive device 1 is suitable for being mounted on, for example, a hand-held device because the power consumption is reduced by reducing the torque of the head drive mechanism 10 and the size is reduced.

When the flexible disk 104 is in a non-rotating state, the recording / reproducing mechanism 9 allows the suspension members 31a and 31b to hold the holding member 39 as described above.
Thus, even when vibration or the like is applied, it is possible to prevent the magnetic heads 30a and 30b mounted on the opposing main surfaces from abutting and being damaged. Further, the recording / reproducing mechanism 9 is rotated to the second position only when the recording / reproducing operation is performed by rotating the flexible disk 104 as described above, and the magnetic heads 30a, 30b Since the magnetic heads 30a and 30b are opposed to the recording surface, vibrations and the like are applied.
This prevents occurrence of a situation in which b abuts on the flexible disk 104 and damages the recording surface.

In the disk drive device 1, the recording / reproducing mechanism 9 enters the inside of the disk cartridge 2 only when the flexible disk 104 is rotationally driven, and the magnetic heads 30a and 30b
The recording surface is kept in a pseudo contact state to record and reproduce information signals and the like. Therefore, the disk drive device 1 includes the magnetic heads 30a, 3
The occurrence of a linking phenomenon in which Ob sticks to the recording surface of the flexible disk 104 is reliably prevented. Thus, the disk drive device 1 can
Inconveniences such as the inactivation phenomenon of the magnetic heads 04 and the separation of the magnetic heads 30a and 30b from the suspensions 31a and 31b are reliably prevented.

The mechanism chassis 6 has a circuit board 12
Are combined in a stacked state. The circuit board 12 has an outer dimension substantially equal to the internal space of the housing main body 2, and as shown in FIG. 6, is provided with a large notch 12a serving as a relief for each mechanism described above because it is assembled to the mechanism chassis 6. I have. The input / output connector 5 is mounted on the circuit board 12 at the rear end, and the connection terminal 3 of the flexible circuit board 32 of the recording / reproducing mechanism 9 is located on the rear left side.
A connector 40 into which 2a is inserted and connected is mounted.

The circuit board 12 has a spindle motor 25
The terminal portion 12b is printed on the periphery of the notch 12a corresponding to the connection terminal portion 28c formed on the coil substrate 28 of FIG. When the coil board 28 is attached to the mechanism chassis 6, the connection terminal 28 c is connected to the terminal 12 b of the circuit board 12.

The disk drive device 1 configured as described above is connected to, for example, a personal computer device (not shown) via the input / output connector 5. In the disk drive device 1, the disk cartridge 100 is inserted from the cartridge insertion slot 3a with the circular front part 101a as an insertion side, and is loaded into the cartridge loading section 6e of the cartridge holder 16. In the disk cartridge 100, the first shutter member 109 and the second shutter member 110 are driven by the shutter driving lever 18 of the cartridge loading mechanism 7, and the recording / reproducing opening 106 and the disk driving opening 107 are opened.

When the disk cartridge 100 is loaded to a predetermined position, the disk drive device 1 rotates the cartridge holder 16 about the support shaft 15 so that the disk drive mechanism 8 is opened from the opened disk drive opening 107. Disk table 23 enters disk cartridge 100. Disk drive device 1
Magnetically chucks the center hub 116 of the flexible disk 104 by the disk table 23.

The disk drive 1 is driven by a recording input or a reproduction input such as an information signal supplied from a personal computer. In the disk drive device 1, the flexible disk 104 is rotated at high speed via the disk table 23 by driving the spindle motor 25. In the disk drive device 1, the head drive mechanism 10 is operated to move the recording / reproducing mechanism 9 held at the first position to the second position. The recording / reproducing mechanism 9 enters the disk cartridge 100 through the opened recording / reproducing opening 106. In the recording / reproducing mechanism 9, the magnetic heads 30a and 30b are
At a position corresponding to the predetermined position of No. 04, the recording surface is sought to record an information signal or the like or to reproduce the information signal or the like.

When the predetermined drive operation is completed and the rotation of the flexible disk 104 is stopped, the head drive mechanism 10 is operated to move the drive mechanism 9 from the second position to the first position. The operation of returning to is performed. The recording / reproducing mechanism 9 includes the suspension 3
1a and 31b are held at the first position by engaging with the holding grooves 39a and 39b formed in the holding member 39 of the head holding mechanism 11, respectively. When the recording / reproducing operation is performed again, the recording / reproducing mechanism 9 of the disk drive device 1 enters the disk cartridge 100 according to the above-described operation, and performs recording / reproduction of information signals and the like.

The disc drive 1 performs an eject operation of the disc cartridge 100 by pressing the eject operation button 3b. In the disk drive device 1, the cartridge holder 16 is returned to the initial position by the elastic force of the eject spring 21 by pressing the eject operation button 3b, and the disc cartridge 100 is ejected from the cartridge loading section 16e. In the disk drive device 1, the cartridge holder 16 that has returned and rotated is fitted with the lock spring 22.
The cartridge loading portion 16e is held in the initial state with the cartridge loading portion 16e facing the cartridge insertion opening 3b by the lock member 19 that has been returned and rotated by the elastic force of.

The present invention is not limited to the configuration of the disk drive device 10 shown in the above embodiment. Although the disk drive device 1 is shown as a drive device of the disk cartridge 100 in which a flexible disk 104 in which information signals and the like are recorded at high density as a recording medium is shown, the flexible disk 104
For example, a disk having a conventional flexible disk with standard specifications or a hard disk may be used. In addition, the disk drive device 1 is configured as a drive device for a disk cartridge containing an optical recording medium such as an optical disk or a magneto-optical disk by configuring the recording / reproducing mechanism 9 with an optical pickup or an optical pickup and a magnetic head. You may.

[0098]

As described above in detail, according to the disk drive apparatus of the present invention, a disk cartridge loading mechanism of the front loading type is constituted, and the cartridge holder is rotatably supported at the cartridge insertion port side. As a result, the insertion posture of the disk cartridge is kept constant until the disk cartridge is inserted into a predetermined position, thereby improving the operability of loading the disk cartridge and preventing the occurrence of inconvenience such as breakage of the mechanism. Is done. In addition, the disk drive device performs high-precision recording and reproduction of information signals and the like on a disk-shaped recording medium with high density recording and high recording capacity achieved by a head having flying characteristics, By moving the recording / reproducing mechanism to the first position retracted from the disk cartridge by the head driving mechanism during non-rotation and holding the recording / reproducing mechanism by the head holding mechanism, the occurrence of the head ringing phenomenon is reliably prevented, and the reliability is improved. Is improved. The disk drive device has a non-brush type spindle motor, which constitutes the head drive mechanism, composed of components that are directly assembled to the mechanism chassis, thereby improving the assemblability and assembling the entire mechanism without restricting the assembly of each mechanism. This improves the performance and simplifies the structure. The disk drive device uses a disk cartridge having a disk-shaped recording medium for high-density recording and high-capacity recording. It is extremely suitable to be mounted on a removable recording / reproducing device or a portable device.

[Brief description of the drawings]

FIG. 1 is a perspective view of a disk drive device shown as an embodiment of the present invention, as viewed from the front side.

FIG. 2 is a perspective view showing the disk drive from the back side.

FIG. 3 is a perspective view of an essential part for explaining a configuration of a cartridge insertion slot of the disk drive device.

FIG. 4 is a perspective view showing the disk drive device with a housing removed.

FIG. 5 is a longitudinal sectional view of the disk drive device.

FIG. 6 is an exploded perspective view showing an internal mechanism of the disk drive device.

FIG. 7 is a horizontal sectional view illustrating a normal state of the disk drive device.

FIG. 8 is a diagram illustrating a configuration of a cartridge loading unit in a normal state of the disk drive device.

FIG. 9 is a horizontal sectional view illustrating a state where a disk cartridge is loaded in the disk drive device.

FIG. 10 is a diagram illustrating a configuration of a cartridge loading unit in a state where a disk cartridge is loaded in the disk drive device.

FIG. 11 is an exploded perspective view of a main part, illustrating a configuration of a cartridge loading mechanism provided in the disk drive device.

FIG. 12 is an exploded perspective view of a main part explaining a configuration of a disk drive mechanism provided in the disk drive device.

FIG. 13 is an exploded perspective view of an essential part for explaining a configuration of a head drive mechanism provided in the disk drive device.

FIG. 14 is an essential part longitudinal cross sectional view for explaining a configuration of a head holding mechanism provided in the disk drive device.

FIG. 15 is a perspective view showing a disk cartridge used in the disk drive device.

FIG. 16 is a perspective view showing the disk cartridge from the bottom side.

FIG. 17 is an exploded perspective view illustrating the configuration of the disk cartridge.

FIG. 18 is a diagram illustrating various devices on which the disk drive device according to the present invention is mounted.

[Explanation of symbols]

1 disk drive device, 2 housing body, 3
Front panel, 3a cartridge insertion slot, 4 back panel, 5 input / output connectors, 6 mechanism chassis, 7 cartridge loading section, 8 disk drive mechanism, 9 recording / reproducing mechanism, 10 head drive mechanism, 11 head holding mechanism,
12 circuit board, 14 positioning stud, 15 spindle, 16 cartridge holder, 16e cartridge loading section, 16k cam pin, 17 eject member, 1
7g cam hole, 17h engagement portion, 18 shutter drive lever, 19 lock member, 19d lock portion, 20 cartridge pressing portion, 21 eject spring, 22
Lock spring, 23 disk table, 24 spindle shaft, 25 spindle motor, 26 rotor magnet, 27 rotor yoke, 28 coil board, 2
9 Spacer boss, 30 magnetic head, 31 suspension, 32 flexible wiring board, 33 suspension holding member, 34 arc tutor section, 35 yoke member, 36 bearing member, 37 coil, 39 holding member, 40 connector, 41 bearing member, 100 disk cartridge , 101 cartridge, 104 flexible disk, 106 recording / reproducing opening, 107
Disk drive opening, 109 first shutter member, 11
0 Second shutter member

Claims (17)

[Claims] 1. A cartridge loading device having a cartridge loading portion, a cartridge holder rotatably supported at one end on a cartridge insertion port side, and loading a disk cartridge rotatably storing a disk-shaped recording medium. A mechanism, wherein the cartridge holder is rotatably supported at one end on the cartridge insertion port side, and is supported in an inclined state in which a free end is separated from the mechanism frame when the disc cartridge is not loaded. A disk drive device. 2. An eject member slidably and rotatably supported in a loading direction of the disc cartridge in the cartridge holder, and an urging member for urging the eject member toward the cartridge insertion port and a cartridge. An eject spring for urging the free end side of the holder away from the mechanism chassis; and an eject mechanism provided on the eject member in a state where the disc cartridge is loaded in the cartridge holder. 2. The disk drive device according to claim 1, wherein an operation button is projected and exposed from the device housing. 3. A shutter drive mechanism having a shutter drive member provided inside the disc cartridge and opening and closing an opening of the cartridge holder, the shutter drive member operating from a closed state to an open state. 3. The disk drive according to claim 2, wherein: 4. The cartridge holder is provided with an eject lock mechanism having a lock member rotatably supported and a spring having an engagement property with the shutter drive member. When the lock member is relatively engaged with the shutter drive member of the shutter drive mechanism in a state where the disc cartridge is not loaded, an elastic force of an eject spring of the cartridge eject mechanism is provided via the shutter drive member. When the disc cartridge is loaded in the cartridge loading portion, the shutter driving member that has opened the shutter member operates the shutter drive member of the eject lock mechanism. The engagement state with the lock member is released It allows the disc drive apparatus according to claim 3, characterized in that the rotating motion to a second position close to the mechanism chassis side by the elastic force of the eject spring of the cartridge eject mechanism. 5. The cartridge holder is rotatably supported at one end on the cartridge insertion port side with respect to a mechanism chassis on which a disk drive mechanism is assembled. The mechanism chassis is loaded into the cartridge loading portion. 2. The disk drive device according to claim 1, further comprising a positioning means for positioning said disk cartridge. 6. A disk drive mechanism having a disk table and a spindle motor for holding and rotating a disk-shaped recording medium stored in a loaded disk cartridge, wherein the spindle motor has one end of the disk drive. A spindle shaft to which a table is fixed, a disk-shaped rotor yoke fixed to the other end of the spindle shaft, an N pole and an S pole
A ring-shaped rotor magnet in which the poles are alternately magnetized, and a coil substrate in which a plurality of coils are provided in the rotation direction and opposed to the rotor magnet with a slight gap therebetween, A disk drive device, wherein each component is assembled to a mechanism chassis to form a brushless motor. 7. The spindle motor according to claim 1, wherein one end of the coil board is integrally formed with a terminal facing a terminal formed on the circuit board while being attached to the mechanism frame. 7. The disk drive device according to claim 6, wherein the electrical connection with the circuit board is performed by connecting the spaces. 8. A head for recording and / or reproducing information signals and the like on and from a disk-shaped recording medium, and a head surface of the head slightly deviated from a main surface by an air flow generated by rotation of the disk-shaped recording medium. A recording / reproducing mechanism having a suspension that supports the suspension in a pseudo contact state, and a suspension supporting member that supports the suspension; and an arcuator member connected to the suspension supporting member of the upper recording / reproducing mechanism. A head drive mechanism for rotating the mechanism between a first position retracted from the disk cartridge and a second position for entering the disk cartridge and recording and / or reproducing information signals and the like; A disk drive device comprising: 9. The recording / reproducing mechanism includes a pair of suspensions each mounted with the head for recording and / or reproducing an information signal or the like in a state where the head slightly floats on the front and back main surfaces of the disk-shaped recording medium. 9. The disk drive device according to claim 8, comprising: 10. The actuator according to claim 1, wherein the head drive mechanism has a different polarity with respect to a rotation direction of the suspension support member and faces the coil. And when a current is supplied to the coil, a magnetic driving force generated between the coil and the magnet causes the recording / reproducing mechanism to move between the first position and the first position. 9. The disk drive device according to claim 8, wherein the disk drive device is rotated to the second position and seeks the main surface of the disk-shaped recording medium from the second position. 11. A head for recording and / or reproducing information signals and the like on and from a disk-shaped recording medium, and the head is supported in a pseudo contact state slightly floating with respect to the main surface of the disk-shaped recording medium. A recording / reproducing mechanism having a suspension and a suspension support member for supporting the suspension; and a recording / reproducing mechanism which is moved out of the disk cartridge into a first position and into the disk cartridge to record information signals and the like. And / or a head drive mechanism for rotating to a second position for performing reproduction, and a holding member with which a suspension of the recording / reproducing mechanism is relatively engaged. A head holding mechanism for holding the recording / reproducing mechanism at a first position retracted from the disk cartridge. Disk drive apparatus according to symptoms. 12. A holding member of the head holding mechanism, the holding member being rotatably supported and having an engagement groove with which a suspension of the recording / reproducing mechanism is engaged, wherein the suspension is moved from a main surface of the disk-shaped recording medium. 12. The device according to claim 11, wherein the device is held apart.
A disk drive device according to claim 1. 13. A recording / reproducing mechanism comprising: a pair of heads for recording and / or reproducing information signals from the front and back main surfaces of the disk-shaped recording medium; and a pair of suspensions each supporting the heads on opposing surfaces. 13. The holding member according to claim 12, wherein the holding member is provided with a pair of engagement grooves each of which is engaged with the suspension such that the head is held in a state of being separated from each other. Disk drive device. 14. A cartridge loading unit having a cartridge loading unit, a cartridge holder rotatably supported at one end on the cartridge insertion port side, and loading a disk cartridge rotatably storing a disk-shaped recording medium. A disk drive mechanism having a mechanism, a disk table and a brushless spindle motor, for holding and rotating a disk-shaped recording medium stored in a disk cartridge loaded in the cartridge holder, and a disk-shaped recording medium A head for recording and / or reproducing information signals and the like, a suspension for supporting the head in a pseudo contact state slightly floating with respect to the main surface of the disk-shaped recording medium, and a suspension for supporting the suspension A recording / reproducing mechanism having a support member; A head drive mechanism for rotating the raw mechanism between a first position retreated from the disk cartridge and a second position for entering the disk cartridge and recording and / or reproducing information signals and the like; A holding member with which a suspension of the recording / reproducing mechanism is relatively engaged, and a head holding mechanism for holding the recording / reproducing mechanism at a first position retracted from the inside of the disk cartridge when the disk-shaped recording medium is not rotating. A disk drive device comprising: 15. A recording / reproducing mechanism comprising: a pair of heads for recording and / or reproducing information signals from the front and back main surfaces of the disk-shaped recording medium; and a pair of suspensions each supporting the heads on opposing surfaces. 15. The holding member according to claim 14, wherein the holding member is provided with a pair of engagement grooves with which the suspensions are respectively engaged so that the heads are held apart from each other. Disk drive device. 16. A mechanism chassis in which the cartridge loading mechanism, the disk drive mechanism, the recording / reproducing mechanism, and the head drive mechanism are respectively assembled, and a control circuit and a drive circuit which are combined with the mechanism chassis in a stacked state. 15. The disk drive device according to claim 14, further comprising a circuit board on which circuit elements, circuit components, input / output connectors, and the like constituting the above components are mounted. 17. The method according to claim 1, wherein the head is a magnetic head, and the disk-shaped recording medium is a thin flexible disk formed of a synthetic resin.
The disk drive device according to any one of claims 6, 8, 11, and 14.