JPH0460951A - Magnetic head supporting mechanism - Google Patents

Abstract

PURPOSE:To prevent spacing from being generated between a magnetic head and a magnetic recording medium and to execute satisfactory magnetic recording and reproducing by providing rocking functions at every rocking direction with respect to rocking in a relative direction with the direction of one axis as a center as a magnetic head supporting mechanism for which the magnetic head is fixed. CONSTITUTION:By adhering the magnetic head to the magnetic recording medium by rocdking a supporting board 3' for which the magnetic head is fixed, a roecking force can be arbitrarily set to the rocking in an A direction with an X axis as a center by the torsional displacement of a tie-bar 3'c for A direction, and rocking force can be arbitrarily set to rocking in a B direction by the torsional displacement of a tie-bar 3'd for B direction respectively. Therefore, optimum rocking ability can be obtained against the generation of force in respective nonuniform rocking directions caused by rocking. Thus, spacing to be generated between the magnetic recording medium and the magnetic head can be kept small and stable, and a satisfactory magnetic reording characteristic can be obtained.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a magnetic recording and reproducing device for magnetically recording and reproducing information on a magnetic recording medium, and in particular, the present invention relates to a magnetic recording and reproducing device that magnetically records and reproduces information on a magnetic recording medium, and in particular, a support plate that swingably supports a magnetic head. This invention relates to a magnetic head support mechanism of a magnetic recording/reproducing device that has a mechanism for suppressing a recording medium, presses the magnetic head against the magnetic recording medium, and slides the magnetic head relative to the magnetic recording medium to magnetically record and reproduce information. be.

[Prior Art] Conventionally, a magnetic recording device (referred to as a magnetic recording device) is used as an external storage device for a computer. There is a flexi-fultiff device (hereinafter referred to as FDD) that performs regeneration. In recent years, FDDs have been rapidly becoming smaller and larger in capacity, and there is a corresponding demand for higher recording densities.For this purpose, it may be advantageous to narrow the width of the magnetic cap of the magnetic head. I know that this is a good method. However, when the width of the magnetic gap is narrowed, a change in the size of the gap between the magnetic recording medium (hereinafter referred to as the medium) and the magnetic head (hereinafter referred to as the sub-sink) appears largely in the output of the magnetic head. For this reason, the state of contact between the magnetic head and the medium is important, and it is necessary to stably suppress the base sink to a small level.

Below 1. With these as the front legs, a conventional FDD uses a configuration as shown in FIG.

FIG. 3 is an exploded perspective view of a conventional FDD magnetic head device, and FIG. 3(a) shows one part of the magnetic head device, and FIG.
b) is a perspective view of the lower magnetic head device, FIG. 3(C) is a magnetic recording medium, and FIG. 3(d) is a perspective view of a fixing screw. In FIG. 3, reference numeral 8 denotes a head carriage for transporting the magnetic head, which is driven along the radial direction of the magnetic recording medium 7 (direction of arrow S in FIG. 3(b)) by a drive stage (without water displacement). be done.

Further, as shown in FIG. 3(b), the head carriage 8
A first magnetic head support plate (hereinafter referred to as a support plate) having an elastic first magnetic head support plate (hereinafter referred to as a support plate) is attached to the lower surface of the magnetic recording medium 7 (FIG. 3(C)). )3
Supported and fixed through. Further, a first shield link 5 for preventing noise from entering the first magnetic spatulas 1 to 1 is fixed so as to surround the first magnetic head l.

In addition, the spatula 1 and spatula 8-) 2 are shown in Figure 3 (a).
), the head arm 9 is cantilevered by a plate spring 13 through a support member 14 so as to be elastically movable in the direction lx ) as if being pushed downwards,
It is fixed to the head carriage 8 via the support member 14 with a fixing screw 16 (FIG. 3(d)).

Then, on the lower surface of the tip of the head arm 9, there is a second magnetic head 2 for recording or recording on the upper surface of the magnetic recording medium 7 (FIG. 3(C)). It is supported by an elastic second magnetic heramyl support plate (hereinafter referred to as support plate) 4 fixed to. Also, 3. prevents noise from entering the second magnetic head 2. The second shield link 6 is fixed to surround the second magnetic head 2. The second magnetic head 2 is disposed facing the first magnetic head l, and has a head arm 9.
The position of the pivot lO provided in FIG. ing.

Next, the swinging state of the first and second support plates 3 and 4 will be explained using FIG. 4, taking the first support plate 3 as an example.

The swinging in the A direction and the B direction about the X axis shown in FIG. 4 is caused by torsional displacement of the second tie bar 3b provided on the support plate 3. Further, the swinging in the C direction and the D direction about the Y axis is caused by torsional displacement of the first tie bar 3a provided on the support plate 3. With the above configuration, the magnetic head 1.2 can freely swing.

Next, the operation of this conventional example will be explained using FIG. 3.

In FIG. 3, during recording or reproduction, the suppression splinter 15 or the spatula 1 hair arm 9 is pressed downward in FIG. Then, with this sandwiched, the magnetic recording medium 7 is driven by a single drive stage (not shown) as shown in FIG. 3(C).
The recording medium 7 is rotated in the direction of the arrow R, and the magnetic heads 1 and 2 are brought into sliding contact with the magnetic recording medium 7 to perform recording or reproduction. At this time, the first magnetic spatulas 1 to 1 are connected to a recording/reproducing circuit (partially not shown) via a first flexible printed circuit board (hereinafter referred to as FPC) 11;
The second magnetic head 2 is also connected to a recording/reproducing circuit (partially shown) via the first FPC 12, and information is exchanged.

In the conventional configuration as shown in 1- below, the suppression splinter 15
The magnetic heads 1 and 2 are brought into pressure contact with the magnetic recording medium 7 by the pressing force, and the magnetic heads 1 and 2 are oscillated 1.
By supporting the i-th point 7 and following the magnetic recording medium 7, subaccension between the magnetic head 1.2 and the magnetic recording medium 7 is suppressed.

[Problems to be Solved by the Invention] As described above, in the conventional example, when recording or IIf generation, the magnetic heads l, 2 are fixed by swinging of the support plate 3.4. 2 to magnetic recording medium 7
I'm trying to get it close to. However, as shown by the arrow R in FIG. 3(c), the magnetic recording medium 7 only rotates in a fixed direction, and the sliding property between the magnetic recording medium 7 and the magnetic spatula 1 is Due to τ, a non-uniform force is applied in the direction of swing of the support plate 3.4. That is, there is a difference between the force acting in the direction of arrow A and the force acting in the direction of arrow B centering on the X-axis shown in FIG. Nevertheless, as shown in FIG. 4, the conventional example has the same swinging ability in both directions of arrows A and B shown in FIG. 4 due to the tie bar 3b.

Therefore, when the magnetic recording medium 7 is rotating, that is, while the magnetic head 1.2 and the magnetic recording medium 7 are performing magnetic recording + Il generation, the magnetic spatulas 1 to 1, 2 are moved by the force acting non-uniformly. , the head side of the magnetic recording medium 7 is slid, and the magnetic head 1. is not slid stably.
There was a problem in that sub-synchronization occurred between the magnetic recording medium 2 and the magnetic recording medium 7, and good magnetic recording and reproduction could not be performed.

The present invention was made to solve such problems,
[1] To obtain a magnetic head support mechanism that ensures good magnetic recording by preventing the occurrence of base sink between the magnetic spatula 1 and the magnetic recording medium.
target

"R stage for solving the problem" 1-In order to achieve the above-mentioned object, the present invention provides a magnetic spatula 1
As a fixed magnetic head support mechanism, a structure is adopted in which a swinging function is provided for each swinging direction with respect to swinging in a relative direction centering on the axial direction.

[Function] According to the present invention, it is possible to provide the optimum swinging ability for each swinging direction in the swinging around the -axial direction, so that the magnetic recording medium can be moved in a fixed direction during recording and reproduction. By rotating and sliding against the magnetic head, even if uneven force is generated in the sliding direction, it is possible to appropriately correct it using the support plate.

[Example] The present invention will now be described in detail with reference to FIGS. 1 and 2. In addition, in FIGS. 1 and 2, 3' and 3'' are respectively magnetic head support plates, 3'a3''a, 3'c, 3''c,
3'd and 3''e are tie bars, respectively, and the same or corresponding parts as in FIGS. 3 and 4 of the conventional example are designated by the same reference numerals.

Further, in the magnetic head device shown in FIG. 3, the structure of the mechanism other than the first and second magnetic head support plates 3.4 is the same as that of the embodiment of the present invention.

FIG. 1 is a perspective view of a magnetic head support plate according to a first embodiment of the present invention. 1 and 3, during recording or reproduction, the suppression splinter 15 is connected to the head arm 9.
is pressed downward as shown in FIG. 3(a), and this pressing force brings each of the magnetic heads 1 and 2 into pressure contact with the magnetic recording medium 7, and while they are being held, the magnetic recording medium 7 is driven by a drive means (not shown). This embodiment is the same as the conventional one in that the magnetic heads 1 and 2 are rotated in the direction of arrow R in FIG. 3(c), and each of the magnetic heads 1 and 2 slides into contact with the magnetic recording medium 7 to perform recording or reproduction. . Then, the magnetic heads 1 and 2 are brought into close contact with the magnetic recording medium 7 by swinging the support plates 3' and 4' (not shown) to which the magnetic heads 1 and 2 are fixed. In Fig. 1, swinging in the direction around the X-axis is performed by torsional displacement of the tie bar 3'c for the direction B, and swinging in the B direction is performed by the tie bar 3'd for the B direction. The rocking force can be set arbitrarily by changing the tension. Figure 2 shows the second embodiment of the present invention.
FIG. 2 is a perspective view of a magnetic head support plate according to an embodiment of the present invention. Second
In the figure, the oscillation can be arbitrarily set by using the deflection displacement of the No. 1 support beam of the B-direction oscillation beam 3e for oscillation in the B direction about the X-axis during recording or reproduction. In Figure 2, deflection displacement is used for swinging in the B direction, but the same effect can be achieved by using deflection displacement in the A direction, or by using deflection displacement of the beam in both directions. Of course, the effect can be changed.

[Effects of the Invention] As described above, according to the present invention, with respect to the magnetic spatula 1 to the support mechanism to which the magnetic head is fixed, each swing is By adopting a structure that has a swinging function for each direction of movement, when the magnetic recording medium rotates in a fixed direction and slides on the magnetic head during magnetic recording and reproduction, uneven swinging in each direction due to sliding is avoided. This allows the spacing between the magnetic recording medium and the magnetic head to be kept small and stable, resulting in good magnetic recording. You can get properties.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a magnetic head support plate showing a first embodiment of the invention, FIG. 2 is a perspective view of a magnetic head support plate showing a second embodiment of the invention, and FIG. 3(a) ,(b),(c),
(d) is an exploded perspective view of a conventional magnetic head device, and
FIG. 4 is a perspective view of a conventional magnetic head support plate. In the figure. 1.2 Magnetic head 3.3', 3'', 4: Magnetic head support plate 7: Magnetic recording medium

Claims (1)

[Claims] It has a magnetic head that faces a magnetic recording medium, and a support plate that swingably supports the magnetic head, and presses the magnetic head support plate toward the magnetic recording medium to move the magnetic head to the magnetic recording medium. A magnetic head support mechanism in a magnetic recording and reproducing device that magnetically records and reproduces information by press-contacting a recording medium and sliding it relative to the recording medium, the mechanism being centered in one axial direction of a magnetic head support plate that supports the magnetic head. A magnetic head support mechanism is characterized in that it has a swing function for each swing direction for swings in relative directions.