JP3239860B2 - Magnetic disk drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head support mechanism, a magnetic head support, and a magnetic disk drive for supporting a slider on which a magnetic head is mounted, and in particular, can firmly support a small magnetic head slider. The present invention relates to a magnetic head support mechanism, a magnetic head support, and a magnetic disk drive.

[0002]

2. Description of the Related Art Generally, in a magnetic disk drive, a slider having a magnetic head is elastically supported by a magnetic head supporting mechanism comprising a gimbal and a supporting arm thereof, and data is recorded by the magnetic head while flying above the magnetic disk. It is configured to perform reproduction.

In this magnetic disk drive, there has been a demand for a reduction in the flying height of a magnetic head on a magnetic disk in response to recent demands for high capacity and high recording density. This reduction in the flying height of the magnetic head causes a so-called head crash, in which the magnetic head collides with the magnetic disk, causing malfunctions in reading and writing or destroying data recorded on the magnetic disk.

On the other hand, high reliability is strongly required for magnetic disk devices. In order to satisfy this conflicting demand, it is strongly desired that the magnetic head support mechanism stably support the slider.

The above-described magnetic head support mechanism is roughly classified into a type in which the support arm is rotationally moved, that is, a rotary type, and a type in which the support arm is linearly moved, that is, a linear type. For example, JP
There is one described in Japanese Patent No. 37784, and the latter type is described in, for example, Japanese Patent Application Laid-Open No. 1-176376.

[0006]

The rotary magnetic head supporting mechanism of the prior art described above is characterized in that a slider joint portion forming a gimbal is joined in the longitudinal direction of the slider and the gimbal is moved in the longitudinal direction of the slider. To a supporting arm extending therethrough. That is, the slider joint portion and the supporting arm forming the gimbal are arranged in the longitudinal direction of the slider.

For this reason, in this rotary type magnetic head support mechanism, the slider located at the tip end of the support arm tilts with respect to the data recorded on the magnetic disk with the rotation of the support arm. , The performance of writing and reading data by the magnetic head is degraded. For this reason, at present, the decrease is corrected by the control circuit system.

Accordingly, a linear magnetic head supporting mechanism which is superior to the deterioration of the data writing and reading performance of the magnetic head in the rotary magnetic head supporting mechanism described above is often used.

However, in the linear type magnetic head support mechanism described in Japanese Patent Application Laid-Open No. 1-176376, the gimbal attached to the tip of the support arm is perpendicular to the longitudinal direction of the slider. Due to the size of the slider and the miniaturization of the slider, the bonding area between the slider joint and the slider rear surface that constitute the gimbal is naturally limited, and the bonding area between the slider joint and the slider rear surface is reduced. And the adhesive strength is reduced.

For this reason, when the slider comes into contact with the magnetic disk for some reason, the slider may be separated from the slider joint portion of the gimbal, causing data destruction on the magnetic disk, a so-called crash accident. .

An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to provide a magnetic head supporting mechanism capable of firmly fixing a slider to a slider joint of a gimbal.

[0012]

In order to achieve the above object, the present invention provides a magnetic head support for a magnetic disk drive in which a slider having a magnetic transducer is supported on a flexible gimbal at the tip of a support arm. In the mechanism, the gimbal is connected to a slider joint along the longitudinal direction of the back surface of the slider, a flexible member connected to the slider joint, and connected to the flexible member and extends along the short direction of the slider. A magnetic head supporting mechanism for a magnetic disk drive, wherein the slider joining part is joined to a back surface of the slider in a longitudinal direction thereof.

According to the present invention, in a magnetic head supporting mechanism of a magnetic disk drive for supporting a slider provided with a magnetic transducer on a flexible gimbal at the tip of a support arm, the gimbal is provided in a longitudinal direction of a back surface of the slider. And a flexible body connected to the slider joint,
A magnetic head support for a magnetic disk drive, comprising: a support connected to the flexible body and extending along the short direction of the slider.

Further, the present invention relates to a magnetic disk drive for supporting a slider provided with a magnetic transducer on a flexible gimbal at the tip of a support arm, wherein the gimbal is connected to a slider joint along the longitudinal direction of the back surface of the slider. And a flexible body connected to the slider joint, and a support connected to the flexible body and extending along the short direction of the slider. The support of the gimbal is formed in the short direction of the slider. Connected to a support arm extending along
A magnetic disk drive is characterized in that positioning means for linearly moving and positioning the support arm are connected.

The magnetic head support mechanism constitutes a gimbal, and a slider bonding portion bonded to the back surface of the slider is bonded to the back surface of the slider along the longitudinal direction of the slider. Therefore, a large bonding area between the slider joint and the rear surface of the slider can be ensured. Therefore, even when the slider comes into contact with the magnetic disk, the slider can be prevented from coming off the gimbal, and the performance and reliability of the magnetic disk device can be significantly improved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the magnetic head support mechanism of the present invention will be described below with reference to the drawings.

FIG. 1 shows a magnetic disk drive provided with an embodiment of a magnetic head support mechanism according to the present invention.
In the above, the magnetic disk 1 is stacked on a shaft, and is rotated by a motor connected to the shaft. The slider 2 is equipped with a magnetic transducer for reading data recorded on the surface of the magnetic disk 1 or writing data on the magnetic disk 1. The slider 2 is supported by a magnetic head support mechanism 3. The magnetic head support mechanism 3 is connected to a positioning mechanism 5 via a guide arm 4. In this example, the positioning mechanism 5 linearly moves the slider 2 in the radial direction of the magnetic disk 1 for positioning. This type is called a linear type.
The magnetic disk 1, slider 2, magnetic head support mechanism 3, guide arm 4, positioning mechanism 5 and the like described above are housed in a cover 6 that is kept clean.

FIG. 2 shows an embodiment of the magnetic head support mechanism 3 of the present invention. In this figure, the same reference numerals as those in FIG. 1 denote the same parts. The magnetic head support mechanism 3 is a support arm disposed orthogonal to the longitudinal axis of the slider 2 along the flying rail 20 of the slider 2 so as to generate a pressing load on the slider 2 toward the surface of the magnetic disk 1. 7, provided at the tip of the support arm 7,
The gimbal 8 connects the tip of the support arm 7 and the slider 2.

The magnetic head supporting mechanism 3 includes a slider 2
While applying a predetermined pressing load along the track direction of the magnetic disk 1 without restricting the out-of-plane movement of the slider 2 by the flexible gimbal 8.
Further, the slider 2 is firmly held without falling off the gimbal 8.

The structure of the gimbal 8 in the magnetic head support mechanism 3 of the present invention will be described with reference to FIGS.

FIG. 3 is a plan view showing the structure of the gimbal 8 in the magnetic head support mechanism 3 of the present invention. In FIG. 3, the gimbal 8 has a vertically long flexible support portion 8 having a circular boss hole 81 for alignment with the tip of the support arm 7.
2, an annular flexible body 83 that is divided from an end of the support portion 82 to be wider than the center of the support portion 82 and closes, and extends in the longitudinal direction of the slider 2 within the annular flexible body 83, A slider connecting portion 84 connected to the back surface of the support arm 7, a connecting portion 85 connecting the slider connecting portion 84 and the annular flexible body 83, and a projecting portion formed at the center of the slider connecting portion 84 The bulge 86 is in contact with the lower surface of the tip.

The above-mentioned bulging portion 86 has a function of applying a predetermined pressing load to the slider 2 in a direction approaching the surface of the magnetic disk 1 by contact with the lower surface of the tip of the support arm 7. The annular flexible body 83 absorbs the swing of the slider 2 in the longitudinal direction and the lateral direction. FIG.
In FIG. 7, the hatched portion is the portion that is bonded to the slider 2.

The gimbal 8 is formed of a thin plate material.
Is formed with a stepped portion 87 so as not to interfere with the slider 2.

FIG. 4 is an enlarged plan view showing a slider joining portion constituting the gimbal 8 shown in FIG. In FIG. 4, the same reference numerals as those in FIG. 3 denote the same parts. The slider joining portion 84 has a bulging portion 86 and is connected to the connecting portion 85. The slider 84 has a central portion 841, both sides of the central portion 841, that is, a slider longitudinal extension portion 842 extending in the longitudinal direction of the slider 2. A slider 84 is formed on the opposite side of the connecting portion 85 of the portion 841.

The central portion 841, the slider longitudinal extension 842, the slider lateral extension 843, and the connecting portion 85 forming the slider joining portion 84 have a large bonding area in the back surface of the slider 2, especially in the longitudinal direction. Is taken into account. In addition, the slider short direction extension portion 84
No. 3 sets the amount of protrusion from one end of the slider longitudinal extension 842 to about 0.1 to 0.5 mm.

According to the above-described embodiment of the magnetic head supporting mechanism 3 of the present invention, it is possible to secure a sufficiently large bonding area of the slider joining portion 84 constituting the gimbal 8 in the longitudinal direction of the back surface of the slider 2. Thereby, the gimbal 8 and the slider 2, particularly the slider 2 formed in a small size, can be firmly bonded. As a result, it is possible to prevent the slider 2 from falling off from the magnetic head support mechanism 3, and to improve reliability.

According to one embodiment of the magnetic head support mechanism 3 of the present invention, the annular flexible member 83 of the gimbal 8 is provided.
When the seek is performed by the positioning mechanism 5, the force in the plane in the seek direction, that is, the gimbal 8 extends in the lateral direction of the slider.
Since the gimbal 8 is in the same direction as the seek direction, it only receives a pulling or compressing force in the same plane as the gimbal 8, so that the in-plane rigidity of the gimbal 8 in the seek direction can be maintained high. . As a result, the positioning accuracy of the magnetic head can be improved.

Further, according to one embodiment of the present invention, the bonding portion of the slider 2 at the slider joining portion 84 of the gimbal 8 in the short direction, that is, in the width direction is the central portion 841 excluding the bulging portion 86 and the connecting portion. 85 and a slider extension 843 in the lateral direction of the slider, which does not extend over the entire area in the lateral direction of the slider 2 and can be reduced to less than half of the conventional one. Of the slider 2 in the lateral direction (referred to as camber) due to the difference between the two. As a result, fluctuations in the flying height can be reduced, and a decrease in data read / write performance can be suppressed.

Since the flying height of the magnetic head can be set to the minimum flying height of the slider, the storage density can be improved. Furthermore, the camber prevents the slider 2 from hitting the surface of the magnetic disk when the drive is stopped, thereby preventing the magnetic disk from being damaged, thereby improving reliability.

Further, the gimbal 8 constituting the magnetic head supporting mechanism of the present invention is not limited to the one shown in FIG. 3, but an opening is provided in the slider joint portion 84 to further reduce the camber of the slider 2. Can be done.
These embodiments will now be described.

FIG. 5 shows a second embodiment of the present invention. In FIG. 5, the same reference numerals as those in FIG. 3 denote the same parts. In this embodiment, the connecting portion 85 forming the gimbal 8 is used.
In which a quadrilateral opening 51 is provided.

With this configuration, the effective bonding length (effective bonding area) between the short direction of the slider 2 and the gimbal 8 can be further reduced. Therefore, the camber can be more effectively reduced as compared with the first embodiment of the present invention. This is because, as shown in FIG. 6, the size (amount) hc of the camber is proportional to the third power of the bonding length LY of the slider joint portion 84 in the slider short direction as shown in the following equation 1. It is.

The camber amount hc∝the cubic of LY (Equation 1) For this reason, the reduction of the camber amount hc is effective by reducing the bonding length LY in the short direction to the slider 2. .

Furthermore, when the total bonding length in the short direction of the slider 2 is equal, the camber of the slider 2 is smaller when the bonding surface is divided into several parts than when the slider 2 is continuous. be able to. Specifically, slider 2
It is effective to cut short the bonding length (part) in the short direction of the above.

FIG. 7 shows a third embodiment of the present invention. In FIG. 7, the same reference numerals as those in FIG. 3 denote the same parts. In this embodiment, a plurality of elongated openings 71 extending in the longitudinal direction of the slider 2 are provided in the slider longitudinal extension 842 of the slider joint 84.

With this configuration, the same effect as that of the first embodiment of the present invention can be obtained, and the length (area) of the bonding of the slider joining portion 84 to the rear surface in the short direction of the slider can be obtained. Can be further reduced, so that the slider 2 can be more effectively compared with the first embodiment of the present invention.
Can be reduced.

FIG. 8 shows a fourth embodiment of the present invention. In FIG. 8, the same reference numerals as those in FIGS. 5 and 7 denote the same parts. This embodiment is a combination of the second embodiment shown in FIG. 5 and the third embodiment shown in FIG. 7, and the connecting portion 85 forming the gimbal 8 is provided with a quadrangular opening 51. At the same time, a plurality of elongated openings 71 extending in the longitudinal direction of the slider 2 are provided in the slider longitudinal extension 842 of the slider joint 84.

With this configuration, the same effect as that of the above-described embodiment can be obtained, and the length (area) of adhesion to the slider can be further reduced. Therefore, the configuration is more effective than the first embodiment. Therefore, the camber of the slider 2 can be reduced.

FIGS. 9 and 10 illustrate an example of camber reduction of the slider by the magnetic head supporting mechanism of the present invention. FIG. 9 shows the embodiment shown in FIG.
5 shows the embodiment shown in FIG. 5, and shows a sectional view taken along the axis of the support arm 7. FIG. In these figures,
Reference numeral 90 indicates an adhesive.

9 and 10, the camber h2 of FIG. 10 is smaller than the camber h1 of FIG. 9, and the fourth embodiment of the present invention is the first embodiment. It turns out that the effect is larger than the example. This is because, in the first embodiment of the present invention shown in FIG. 9, the bonding length (surface) in the slider short direction is about half of the conventional type, and in the fourth embodiment of the present invention shown in FIG. This is because it is about 1/4 of the conventional type.

FIGS. 11 and 12 show a fifth embodiment of the present invention. In these figures, the same reference numerals as those in FIG. 3 denote the same parts. In this embodiment, the slider joint 8
4 at the end of the slider longitudinal extension 842
It is provided with wide portions 111 and 112. here,
The wide portion 111 covers the magnetic head 110 provided at the rear end (air outflow end) of the rear surface of the slider 2 so as to cover the magnetic head 110.
Protruding from the rear end of the rear of the camera. The wide portion 112 is provided near the rear end of the slider 2.

According to this embodiment, similarly to the first embodiment, the bonding area of the slider joining portion 84 in the slider short direction is reduced, and the camber of the slider 2 can be reduced. Since the joining portion 84 extends in the longitudinal direction of the slider, the slider joining portion 84 and the back surface of the slider 2 can be bonded with sufficient strength.

According to this embodiment, the wide portion 111
Are arranged so as to cover the magnetic head 110, and therefore, the magnetic head 110 is
Read or write errors can be prevented. Furthermore, malfunctions of other magnetic heads are not induced by electric noise generated by itself. this is,
This is because if the gimbal 8 is formed of a conductive material, for example, stainless steel, the wide portion 111 covering the magnetic head 110 functions as a shield.

In this embodiment, electric noise (such as an electric field)
Therefore, it is suitable for a magnetic head support mechanism for a positioning servo head which is always in a read state, since it is possible to prevent a read / write error operation of the magnetic head due to the above. Further, in a magnetic disk drive in which a magnetic head is provided between the stacked magnetic disks so as to oppose each magnetic disk surface, mutual interference between the magnetic heads is eliminated, so that read and write malfunctions are reduced. It is possible to supply a magnetic disk device having high reliability. Further, by plating the wide portion 111 with a material having high conductivity, for example, gold or the like, it is possible to further improve the above shielding effect.

Further, a wide portion 112 is provided at the tip of the slider 2.
Is provided, even if camber of the slider 2 occurs in the wide portion 112, the effect is not affected by the magnetic head 11 provided at the rear end of the slider 2.
It does not reach the flying height of 0 (the minimum flying height of the slider). Further, since the wide area 112 is provided in the slider joint portion 84, the area of adhesion to the rear surface of the slider 2 can be increased, so that the slider 2 can be sufficiently firmly adhered to the gimbal 8.

Further, by forming the slider joining portion 84 and the wide portions 111 and 112 symmetrically with respect to the axis of the supporting arm 7, the magnetic heads for the upper and lower surfaces of the magnetic disk surface (generally, UP heads and DOWN heads). ) As a magnetic head support mechanism. Thereby, it is possible to improve the productivity and reduce the price.

FIG. 13 shows a sixth embodiment of the present invention, in which the same reference numerals as in FIG. 11 denote the same parts. In this embodiment, flared portions 131 and 132 are provided at longitudinal ends of a slider joining portion 84.

With this configuration, the same effect as that of the fifth embodiment of the present invention can be realized.

FIG. 14 shows a seventh embodiment of the present invention, in which the same reference numerals as in FIG. 11 denote the same parts. In this embodiment, a wide portion 141 is provided at the longitudinal end of the slider joining portion 84 on the magnetic head side.

According to this embodiment, the slider joint 84
Can be simplified, the productivity can be improved, and the same effect as in the fifth embodiment can be realized. Further, by making the diamagnetic head side of the slider joining portion 84 straight, the camber generated near the tip of the slider 2 can be further reduced, and a sufficient adhesive strength between the slider 2 and the gimbal 8 can be obtained. Can be secured.

FIG. 15 shows an eighth embodiment of the present invention, in which the same reference numerals as in FIG. 11 denote the same parts. In this embodiment, the slider joining portion 84 is joined to the back surface of the slider 2 such that the side of the magnetic head projects toward the magnetic head 110 of the slider 2.

According to this embodiment, the slider joint 84
Is provided on the magnetic head 110, the same shielding effect as in the fifth embodiment can be expected. In particular, when only one magnetic head is provided at the center in the lateral direction of the slider, a sufficient shielding effect can be expected.

Further, in this embodiment, the wide portions 111 and 112 provided in the fifth embodiment described above are not required, so that the productivity can be improved.

Further, according to this embodiment, the same effects (sufficient slider bonding strength and camber reduction) as in the first embodiment can be expected.

In this embodiment, the slider joint 84
By moving the slider 2 in the longitudinal direction of the slider 2 and joining the slider 2, the bulging portion 86, that is, the point of application of a load to the slider 2 can be moved, so that the flying attitude of the slider 2 can be controlled. . For this reason, the degree of freedom of design can be expanded.

FIG. 16 shows a ninth embodiment of the present invention, in which the same reference numerals as in FIG. 11 denote the same parts. In this embodiment, the bulging portion 86 provided at the slider joining portion 84 is moved from the center line B in the longitudinal direction of the slider 2 to the supporting portion 82.
The slider joint portion 84 is provided on the rear surface in the longitudinal direction of the slider 2 so as to be shifted by ε in the direction.

According to this embodiment, since the bulging portions 86 are provided shifted by ε, each of the magnetic disks on the floating rail on the inner peripheral side of the slider 2 and the floating rail on the outer peripheral side of the magnetic disk is provided. It is possible to eliminate the imbalance of the flying height caused by the difference between the peripheral speeds UIN and UOUT. Specifically, imbalance in the slider radial direction (difference in flying height between the inner rail and the outer rail), which is particularly problematic in a magnetic disk device having a small magnetic disk diameter.
Can be effectively and easily reduced. Thus, the flying height of the magnetic head can be stably reduced, and a highly reliable magnetic disk device can be provided.

Further, in order to use the bulging portion 86 shifted in the width direction from the center line B in the longitudinal direction of the slider, the setting values of the bonding jig between the slider and the gimbal and the assembly jig which have been conventionally used are changed. Without changing, the point of application of the pressing load can be changed without any change.

FIG. 17 shows a tenth embodiment of the present invention, in which the same reference numerals as in FIG. 11 denote the same parts. In this embodiment, the effective bonding length (area) (shown by oblique lines in the drawing) of the slider joining portion 84 to the slider rear surface between the slider short-side extending portion 843 and the connecting portion 85 is substantially the same. .

According to this embodiment, the same effect as that of the first embodiment can be expected, and the slider joint portion 8 can be formed.
Since the effective bonding length (area) (shown by oblique lines in the drawing) of the slider short-side extension 843 and the connecting portion 85 to the rear surface of the slider is substantially the same, the slider 2 Even if a slight camber occurs between the rail and the outer floating rail, the camber amounts of both rails can be made equal. As a result, it is possible to eliminate the imbalance in the flying height in the slider width direction due to the camber imbalance of both rails. As a result, the flying height of the slider can be easily managed, and the productivity (yield) can be improved.

FIG. 18 shows an eleventh embodiment of the present invention, in which the same reference numerals as in FIG. 11 denote the same parts. In this embodiment, the lengths L1, L2 of the slider longitudinal extension 842 on the anti-magnetic head side and the slider longitudinal extension 842 on the magnetic head side, which constitute the slider joint 84, are defined as L1> L2. It is what was constituted.

According to this embodiment, the bulge 86 can be easily moved in the longitudinal direction of the slider 2 together with the effects of the first embodiment. This makes it possible to move the load application point to the rear of the slider 2 and easily control the flying attitude of the slider 2 (the flying height of the front and rear ends of the slider). In this manner, by changing the length of the slider longitudinal extension 842 constituting the slider joining portion 84, the flying attitude of the slider can be easily controlled. In other words, the support arc
By asymmetrical with respect to the axis of the slider, it is possible to move the position of the bulging portion 86 along the longitudinal axis of the slider while securing a sufficient bonding area, and it is possible to easily raise the flying posture (flying height) of the slider. Volume) can be controlled. As a result, there is also an effect that the degree of freedom in designing a slider for realizing a predetermined flying height can be increased.

As described above, according to the embodiment of the present invention,
The slider joint of the gimbal extends from near the front end to near the rear end of the slider along the longitudinal direction of the slider to secure an adhesion area with the rear surface of the slider, and the shape of the slider that protrudes in the axial direction of the support arm. Warpage (camber) can be prevented, and the slider can be further prevented from warping by providing an opening in the slider joint.

Further, by protruding a part of the slider joint portion toward the magnetic head of the slider, it is possible to provide a highly reliable magnetic head support mechanism which is resistant to electric noise and free from malfunctions in reading or writing.

Further, by displacing the slider joint portion from the longitudinal axis of the slider in the supporting arm direction and providing the bulging portion, the flying unbalance of the slider (in the slider width direction) is eliminated, and the magnetic head support with high reliability is provided. A mechanism can be realized.

Further, by providing a bulging portion along the slider longitudinal axis of the slider joint, the flying attitude of the slider can be controlled, so that the degree of freedom of design for realizing a predetermined flying height can be controlled. Can be expanded.

[0067]

According to the embodiment of the present invention, the slider joint portion of the gimbal can be extended from the vicinity of the front end to the vicinity of the rear end of the slider along the longitudinal direction of the slider, and the back surface of the slider can be joined. A sufficient bonding area between the slider joining portion and the slider back surface can be ensured. As a result, even when the slider comes into contact with the magnetic disk, the slider can be prevented from separating from the gimbal, and the performance and reliability of the magnetic disk device can be significantly improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a partial cross section of a magnetic disk drive provided with a first embodiment of a magnetic head support mechanism of the present invention.

FIG. 2 is an enlarged perspective view showing a first embodiment of a magnetic head support mechanism of the present invention indicated by reference numeral A in FIG.

FIG. 3 is a plan view showing a first embodiment of the gimbal in the magnetic head support mechanism of the present invention.

FIG. 4 is an enlarged plan view showing a slider joining portion constituting a first embodiment of the gimbal in the magnetic head supporting mechanism of the present invention shown in FIG. 3;

FIG. 5 is a plan view showing a second embodiment of the gimbal in the magnetic head support mechanism of the present invention.

FIG. 6 is a characteristic diagram showing a relationship between a bonding length of a slider joining portion to a slider and a slider camber in the magnetic head supporting mechanism of the present invention.

FIG. 7 is a plan view showing a third embodiment of the gimbal in the magnetic head support mechanism of the present invention.

FIG. 8 is a plan view showing a fourth embodiment of the gimbal in the magnetic head support mechanism of the present invention.

FIG. 9 is an enlarged cross-sectional view showing a slider joining portion constituting the first embodiment of the gimbal in the magnetic head supporting mechanism of the present invention shown in FIG. 3;

FIG. 10 is an enlarged cross-sectional view showing a slider joining portion constituting the first embodiment of the gimbal in the magnetic head supporting mechanism of the present invention shown in FIG. 5;

FIG. 11 is a plan view showing a fifth embodiment of the gimbal in the magnetic head support mechanism of the present invention.

FIG. 12 is a perspective view showing a fifth embodiment of the gimbal in the magnetic head support mechanism of the present invention shown in FIG.

FIG. 13 is a plan view showing a sixth embodiment of the gimbal in the magnetic head support mechanism of the present invention.

FIG. 14 is a plan view showing a seventh embodiment of the gimbal in the magnetic head support mechanism of the present invention.

FIG. 15 is a plan view showing an eighth embodiment of the gimbal in the magnetic head support mechanism of the present invention.

FIG. 16 is a plan view showing a ninth embodiment of the gimbal in the magnetic head support mechanism of the present invention.

FIG. 17 is a plan view showing a slider joint of a tenth embodiment of the gimbal in the magnetic head support mechanism of the present invention.

FIG. 18 is a plan view showing a slider joint of an eleventh embodiment of the gimbal in the magnetic head support mechanism of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Magnetic disk, 2 ... Slider, 3 ... Magnetic head support mechanism, 4 ... Guide arm, 5 ... Positioning mechanism, 6 ... Cover, 7 ... Support arm, 8 ... Gimbal, 82 ... Support part, 83 ... Ring shape Flexible body, 84
... Slider joint, 85 ... Connecting part, 86 ... Swelling part,
87: Stepped portion.

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tetsuo Maskawa 2880 Kozu, Kozuhara-shi, Kanagawa Pref.Hitachi, Ltd. Storage System Division (72) Inventor Noriki Une 2880 Kozu, Kozu, Odawara-shi, Kanagawa Hitachi Storage System Co., Ltd. Within the Business Department (72) Inventor Shigeo Nakamura 2880 Kozu, Kodawara-shi, Kanagawa Prefecture Storage Systems Division, Hitachi, Ltd. (72) Inventor Masami Miyatake 2880 Kozu, Kozu, Odawara-shi, Kanagawa Storage System Division, Hitachi, Ltd. 72) Inventor Mikio Tokuyama 502, Kandate-cho, Tsuchiura-city, Ibaraki Pref., Hitachi, Ltd.Mechanical Laboratory (72) Inventor Yoshinori Takeuchi 502, Kantate-cho, Tsuchiura-City, Ibaraki Pref., Hitachi, Ltd.Mechanical Laboratory (72) Inventor Mitsuru Igo 502 Kandatecho, Tsuchiura-shi, Ibaraki Pref. Machinery Research Laboratory, Hitachi, Ltd. (72) Inventor Kenji Mori 502-Kindachi-cho, Tsuchiura-shi, Ibaraki Machinery Research Laboratory, Hitachi, Ltd. (56) References 145567 (JP, A) JP-A-6-68629 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G11B 21/21

Claims (4)

(57) [Claims] 1. A magnetic disk drive that supports a slider having a magnetic transducer at a tip of a support arm via a flexible gimbal, wherein the gimbal has a slider joint portion along a longitudinal direction of a back surface of the slider. A flexible member connected to the slider joint, a support member connected to the flexible member and extending along the short direction of the slider, and a conductive member connected to the slider joint and covering the magnetic transducer. And the support arm connected to the gimbal is connected to positioning means for moving and positioning the support arm. 2. The magnetic disk drive according to claim 1, wherein said conductive slider has a longitudinally extending portion which is plated. 3. The magnetic disk drive according to claim 1, wherein said gimbal is formed of a conductive material. 4. The magnetic disk drive according to claim 1, wherein said conductive slider longitudinally extending portion has a wide portion.