JPS61267979A - Magnetic recording device - Google Patents

Abstract

PURPOSE:To make the first magnetic head have the degree of freedom of an inclination within the range of a gap by making the first magnetic head and a magnetic head reinforcing body abut on each other by providing a necessary gap. CONSTITUTION:A magnetic head reinforcing body 4 wound to about the side face of the first magnetic head 2, also spread out in the same plane direction as a magnetic head holding member 3, and fixed by a means having the degree of freedom integrally with the magnetic head, and the first carriage 1 are made to abut on each other by providing a necessary gap 4a. The head 2 and the reinforcing body 4 are loaded so as to the degree of freedom within the range of the gap 4a, by using a pivot 1a as a supporting point, through the holding member 3. When the head 2 is inclined together with the holding member 3, until the gap 4a comes not to exist, the reinforcing body 4 abuts on the carriage 1 of the holding body 3, and the inclination is controlled. In this way, the head 2 can be inclined by a necessary quantity, the remarkable deformation of a disk is not generated and the life of the disk can be improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to flexible disk drives, etc.
The present invention relates to a magnetic head mounting structure of a magnetic recording device that performs recording and reproduction by rotating a disk and performing random access.

[Summary of the invention]

In the magnetic head mounting structure of the magnetic recording device described above, the present invention provides a first carriage equipped with a moving means with a flexible magnetic head holding member configured in the same plane as the disk. Equipped with 1 magnetic head, said 1
consisting of a second carriage subordinate to the first carriage;
Said! io! a magnetic head retainer that is wound around substantially a side surface of the magnetic head, spread out in the same plane direction as the magnetic head holding member, and fixed integrally to the first magnetic head by a means having a degree of freedom; and the magnetic head. A means for abutting against the reinforcing body with a required gap and regulating the degree of freedom of tilting of the magnetic head of the IEI within the range of the gap was provided in the carriage of #g2. By using means for bringing the first o magnetic head and the disk into close contact with each other, the recording/reproducing position on the disk is stabilized and the life of the disk is improved.

Furthermore, by constructing the magnetic head reinforcing body from a conductive material, electric field noise such as CR'l' can be prevented.

Furthermore, by constructing the magnetic head reinforcing body from a magnetically shielding material, it is possible to protect against magnetic field noise from a motor or the like.

It should be noted that the present invention has the same effect on both single-sided and single-sided magnetic recording devices.

[Prior art]

The head mounting structure of a conventional magnetic recording device, such as a flexible disk drive, which rotates a disk and performs random access for recording and reproduction, is as follows: (1) United 5
tates Patent 4.1SL573K, a first head is mounted on a first carriage using flexible means, and a second head is mounted on a second carriage using flexible means such as a gimbal. This is a structure in which the head of IE2 is mounted and the head of IE2 is brought into close contact with the head of IE2 through the disk, and the main part of the structure is shown in Fig. g3.

Figure 3 is a structural diagram of the main parts of the conventional head mounted on the Tri 12wE
The 1 head is mounted by non-flexible means on a 111E 1 carriage which has means for mounting and moving the head.

The second head 17 is mounted on a 16@2 carriage via a flexible 18 gimbal as shown in FIG. 4, which will be described later. Then, with the pivot 16α configured on the 16112 carriage as the fulcrum, the town 11! It had a structure in which the first head of 12 was closely connected to the second head of 171 via the disk of 15.

(2) Both the IEI head and the second head are mounted on a carriage using flexible means, and have a structure as shown in FIGS. 4 and 5. FIG. 4 is a detailed view of the conventional head, and FIG. 5 is a detailed view of the conventional head. is an explanatory diagram of conventional head mounting and off-track.

Figure 4 is the first hetsu! I will explain this using −′ as an example.

The second head is constructed by similar means.

The 23wE1 gimbal that holds the 22cm 1 head has independent elastic fulcrums Z3z and 23y on the X axis mY@ as shown in the figure.
Both the Y axis and the Y axis have flexibility in the Ω mark direction.

Figure 5 shows in detail the state in which the head described above in Figure 4 is mounted. It is installed. Similarly 2
7 Second head Fi is mounted on the b26 second carriage via the @2 gimbal 28 having the structure described above. and,
21aE1 carriage is pivot” cLt-* 26
The wX2 carriages each configure α to the pivot. 22
The 1 Ex head is flexible with the pivot 22α as the fulcrum, and the 2
The structure was such that they were in close contact with each other through five discs.

[Problems and objects to be solved by the invention] However, in the above-mentioned prior art.

α) As shown in FIG. 3, when the positions of the disk 15, the 12th head 1, and the 17th 2nd head do not match.

Since the first head 12 does not have flexibility, when the head 17@2 is brought into close contact with the first head 12 via the disk 15, the disk 15! is almost in the vicinity of the two heads.
& causes significant deformation.

(2)! As shown in Figure 5, the 22 first head as described above.

Since the second heads 27 are each mounted with flexible means, if the positions of the two heads and disk 5 do not match, if the second head 27 is closely attached to the first head 22 via the disk 25, When closed, the two heads are the fifth
They form an inclination as shown in the figure and come into close contact with each other through the δ disk. Δ2 in the tilted state corresponds to a deviation of the recordable position with respect to the disk in the three disk radial direction, that is, off-track.

Regarding the above-mentioned disk position, there is no illustration.

For example, a disk that has a hub or the like for mounting it in a recording device will have a large amount of wobble. In α), if the disk is significantly deformed, the recording/reproducing position from the center of the disk will shift. That is, not only will the disc go off-track, but it will also significantly shorten the life of the disc.

Also, in (2), when the head tilts, it goes off-track as described above.

Furthermore, as systems using magnetic recording devices become more compact as in recent years, there is a problem in that the performance of the magnetic recording device deteriorates due to the influence of disturbance noise such as electric field noise and magnetic field noise of CRTs, etc. .

The present invention is intended to solve these problems, and its purpose is to provide a magnetic recording device that stabilizes the recording/reproducing position on a disk, increases the life of the disk, and prevents performance degradation due to disturbance noise. It is in a place where we provide.

[Means for solving problems]

The magnetic recording device of the present invention has a first magnetic head mounted on a first carriage equipped with a moving means via a flexible magnetic head holding member configured in the same plane as the disk, and The second carriage is subordinate to the first carriage, and is wound around approximately the side surface of the magnetic head of the lamp, and is spread out in the same plane direction as the magnetic head holding member marked #, so as to be integrated with the first magnetic head. a magnetic head reinforcing body fixed by a means having a degree of freedom; a means for abutting the magnetic head reinforcing body with a required gap and regulating the degree of freedom of tilting of the first magnetic head within the range of the gap; ,
The second carriage was equipped with the second carriage. The present invention is characterized in that it is constructed with means for bringing the Mako magnetic head and disk into close contact with each other.

Further, the magnetic head reinforcing body is made of a conductive material and a magnetically shielding material, and the means for bringing the first magnetic head and the disk into close contact is made of a second magnetic head and a buffer. is also a special feature.

[Effect]

According to the above configuration of the present invention, the means for abutting the above-mentioned magnetic head reinforcing body with a required gap and regulating the degree of freedom of the above-mentioned first magnetic head within the range of the gap;
The first magnetic head is.

Within the range of the gap, there is a degree of freedom in tilting, and when the gap fII disappears, the tilt is regulated.

Furthermore, configuring the magnetic head reinforcing body described above from a conductive material and a magnetically shielding material is an effective means of preventing performance deterioration of the magnetic recording device due to disturbance noise such as field noise and magnetic field noise. .

〔Example〕

Figure 1 and Figure 2 show one embodiment of the present invention.

The IEI diagram is a diagram of the head mounting structure, and FIG. 2 is a detailed diagram of the head.

Although the first head in FIG. 1 is shown as an example in FIG. 2, the second head may have exactly the same structure.

In Figure 2, 3IiXl holding the head of 2 fermentation 1
As shown in Figure 1, the head holding member has independent elastic supports 3z and 3y on the X-axis and Y-axis, respectively.
It has flexibility in the direction of the mark.

On the other hand, the second head is wrapped around approximately the side surface of the first head.

The side surface is a surface that is substantially parallel to the third head holding member in a substantially vertical plane direction, and is engaged with the third first head holding member near the head of the 21E1.

A required clearance (
The 4a head reinforcing body, which is expanded into a square shape and has a cylinder 1 (described later in FIG.

Value 1 Although not shown in Figure 1, the 1 first carriage equipped with a moving means carries the 2 first head of the structure detailed in Figure 2 through the 3 first head holding member. The required clearance between the four magnetic head reinforcing bodies and the three first head holding members described above in FIG. 2 is 4a in FIG.

Note that the left half of the four magnetic head reinforcing bodies in Figure 1 is shown in cross section.

Then, the first head is placed at a position approximately corresponding to the center of the second first head.
When a 1α pivot is configured as part of the first carriage, the two first heads and the 4Fm head reinforcement are
It is mounted via the third head holding member and with the degrees of freedom in the X and Y axes described above in FIG. 2 within the range of the gap *4a using the 18 pivot as a fulcrum.

On the other hand, the second carriage 6, which is subordinate to the carriage 1, has a structure as described above in FIG.
A 7 second head is mounted via an 8 second head holding member having flexibility.

Then, when a pivot 6a is constructed as a part of the 6 second carriage at a position approximately corresponding to the center of the 7 2 heads, the 7 second heads are attached to the 6 α through the 8 second head holding member. The pivot serves as a fulcrum and has degrees of freedom in the X and Y axes as described above in Figure 4, and has a structure in which the two first heads and the five disks are brought into close contact.

According to the structure of the present invention described above.

0) The second head has a degree of freedom in tilting through the third first head holding member within the range of the above-mentioned required gap t4α, and when it is tilted until the above-mentioned gap 4α disappears, the above-mentioned The four magnetic head reinforcing members abut against the portions of the three first head holding members that have lost their flexibility due to being mounted on the first carriage, thereby regulating the inclination.

Although not illustrated and explained, the same effect can be achieved even if the carriage of the first embodiment and the four magnetic head reinforcing bodies are brought into contact with each other with a required gap. In addition, by setting the 4a clearance to the required amount and making the 3rd head holding member have a structure that has flexibility with one degree of freedom only in the X and Y axes shown in Fig. There is no need to construct a 10L pivot for allowing two heads to have degrees of freedom via the aforementioned three first head holding members.

It is also possible to obtain an operation approximate to the state in which the degrees of freedom are configured with the 1α pivot as the fulcrum.

(2) The aforementioned four magnetic head reinforcements? , if it is made of a conductive material, the electric field noise from the lateral direction to the 2-first head is the electric field noise from the direction that intersects the disk plane at the part wrapped around the side surface of the 2-first head described above. Noise is absorbed by the portions that extend in the same plane as the three first head holding members described above.

(3) Similarly, if the above-mentioned 4-magnetic head reinforcing body is made of a magnetically shielding material such as permalloy, the magnetic field noise from the side direction to the 2w×1 head will be approximately 1lIIJ plane of the 2w×1 head. In the part wrapped around.

5. Magnetic field noise from a direction intersecting the disk plane is absorbed by the portions extending in the same plane as the head holding member of the above-mentioned 3 disks 1.

(4) Furthermore, if the four magnetic head reinforcing bodies described above are made of a composite material or a bonded material of a conductive material and a magnetically shielding material, the disturbance noises described in (2) and (3) above can be absorbed together.

(5) The above-mentioned 7th second head mounting means is the 4th head mounting means of the prior art.
Although the structure as shown in the figure has been described above, the structure shown in FIG. 2, similar to the above-mentioned 2-1 head, may be used, but it is actually superior in terms of resistance to disturbance noise, no need for a pivot, etc.

(6) In the above-mentioned 7 second head structure, i (not shown) eliminates the 8 second head holding member and constitutes a shock absorber, such as a felt material, which is fixed to the 6 second carriage. It is also possible to form a means for closely contacting the above-mentioned two first heads with five disks interposed therebetween.

〔Effect of the invention〕

As described above, according to the present invention, a) the head of 21E1 can be tilted by the required amount by setting the clearance 4α shown in FIG. 1 to the required amount, which is neither large nor small; Therefore, significant deformation of the disk as shown in FIG. 3 does not occur, and the disk life is significantly improved.

Furthermore, since the inclination of the heads of the two shearers 1 is regulated according to the required conditions, the inclination of the means for bringing the 5 disk into close contact with the 2 first heads, which is provided on the 6 second carriage mentioned above, is also regulated at the same time. As a result, the deviation of the recording and reproducing position on the disk in the disk radial direction, that is, off-track, as described above in FIGS. 613 and 5, is extremely small.

(2) If the magnetic head reinforcing body shown in FIG. 1 is made of a conductive material, it will not only restrict the tilt of the head of the two sails 1 mentioned above, but also absorb the electric field noise generated by a CRT, etc.
Significantly improve head performance.

Although not shown, this effect is further improved by connecting the four magnetic head reinforcing bodies to ground.

(3) By constructing the magnetic head reinforcing body in FIG. 1 and 4 described in # above with a magnetically shielding material such as permalloy, it not only regulates the tilt of the second head described above but also suppresses disturbance magnetic field noise. Absorbs and significantly improves head performance.

(4) Furthermore, if the four magnetic head reinforcing bodies mentioned above are made of a composite material or a laminated material of conductive materials and magnetically shielding materials, the disturbance noises mentioned in (2) and (3) above can be absorbed together. Therefore, head performance can be further improved.

0) If the second head 7 is configured as shown in FIG. 1 as a means for bringing the first head 2 and the disk 5 provided on the second carriage 6 into close contact, both sides of the disk 5 can be used. This magnetic recording device exhibits the effects described above in α).

Also, although not shown, the 1st figure 211 mentioned above in Figure 2
Even if the head of the sail 2 has a structure similar to that of the head of the sail 2, the same effect can be obtained.

(6) The above-mentioned 6 second carriage was equipped. 2 As a means for bringing the first head and the fifth disk into close contact, for example, if a buffer material such as felt material is used (not shown), a magnetic recording device using one side of the fifth disk can be used.
It exhibits the effects described above.

This not only stabilizes the recording and reproducing position on the disk despite variations in disk dimensions, but also reduces electric field noise to the head.

Because it absorbs and protects magnetic field noise, it not only provides ample stability with respect to disk compatibility with other devices, which is an important performance of a magnetic recording device, but also extends the disk life. The practical effects of the present invention, such as the ability to achieve high capacity, are extremely large.

[Brief explanation of the drawing]

Figure 1 and Figure 2 are diagrams explaining the present invention. Figure 1 is a diagram of the head mounting structure, and figure 2 is a detailed diagram of the head. Figures 3, 4, and tics are diagrams for explaining the conventional example, and Figure 613 is a structural diagram of the main part of the conventional head mounting. FIG. 4 is a detailed view of the conventional head, and FIG. 5 is a diagram illustrating the conventional head mounting and off-track. Process: Carriage 2 of fermentation 1 - First head 3 - Head holding member 4 of Maki 1 - Magnetic head reinforcement 4α - Gap 51 - Disk 6 - Second carriage 7 -e@Sen 2 head 8-...@2 head holding member or more

Claims (6)

[Claims] (1) A first magnetic head is mounted on a first carriage equipped with a moving means via a flexible magnetic head holding member configured in the same plane as the disk, and is dependent on the first carriage. In a magnetic recording device that performs recording and reproduction, the second carriage is wound around approximately the side surface of the first magnetic head and spread out in the same plane as the magnetic head holding member. a magnetic head reinforcing body integrally fixed to the head by a means having a degree of freedom;
a means for contacting the magnetic head reinforcing body with a required gap and regulating the degree of freedom of tilting of the first magnetic head within the range of the gap, and the second carriage is provided with:
A magnetic recording device comprising means for bringing the first magnetic head and the disk into close contact with each other. (2) The magnetic recording device according to claim 1, wherein the magnetic head reinforcing body is made of a conductive material. (3) The magnetic recording device according to claim 1, wherein the magnetic head reinforcing body is made of a magnetically shielding material. (4) The magnetic recording device according to claim 1, wherein the magnetic head reinforcing body is made of a composite material of a conductive material, a magnetically shielding material, and a bonded material. (5) The means for bringing the first magnetic head and the disk into close contact, which is provided in the second carriage, is constituted by a second magnetic head. The magnetic recording device described in Items 2, 3, and 4. (6) Claims 1 and 2, characterized in that the means provided in the second carriage for bringing the first magnetic head and the disk into close contact is constituted by a buffer. The magnetic recording device described in Items 3 and 4.