CN1114769A - Head slider supporting apparatus and information recording/reproducing apparatus using same - Google Patents

Abstract

A head slider support means includes a gimbal spring portion on which is mounted a slider having a read/write head, the gimbal spring portion being connected to one end of a piece of spring material and stretchable in a transverse direction with respect to a horizontal plane In particular, a data recording/reproducing device has at least one set of multiple magnetic disks, a rotary drive section for rotating the multiple magnetic disks, and a head slider block support member, which has at least multiple read/write heads for multiple magnetic heads. recording and reproducing data, and a slider drive section to drive the head slider support device to record and/or reproduce data. Adopting this thin head slider supporting device can have a thin structure.

Description

Head slider support device and recording/reproducing device

The present invention relates to a head slider supporting member, which supports a read/head of a magnetic disk device, and to a magnetic disk device employing the head slider supporting member.

A head slider support is disclosed in Japanese Patent JP-B-58-22827 and another head slider support is disclosed in Japanese Patent JP-A-59-213066 and in the latter case, The rigid part of a suspension spring is formed by connecting multiple sheets.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a head slider supporting device which can reduce the difference in rigidity between the gimbal spring portion and the suspension spring by thinning the suspension spring portion.

Another object of the present invention is to provide a material recording/reproducing apparatus capable of reducing the interval between a plurality of recording media using a thin head slider supporting member.

According to a first aspect of the present invention implemented, a head slider support member includes a gimbal spring portion on which a slider is mounted which has a read/write head, and the gimbal spring portion is formed by being connected to one end of the leaf spring. , with respect to the transverse direction of the horizontal plane, there is a stretchability, a suspension spring part includes a rigid part with a predetermined length of blade spring material extending from the gimbal spring, and a spring part includes a predetermined blade extending from the rigid part A length of spring material, and a manhole mechanism joint portion connecting the leaf spring material together and extending further from the spring portion, and a plating on the rigid portion, at least on the suspension spring portion extending from the gimbal spring.

The rigid portion may comprise a portion of the leaf spring material between the two platings and have a predetermined length along opposite sides of the leaf spring material and from one end of the leaf spring toward the spring portion. The position of the spring part of the gimbal ensures that the rigid part is held in place by the plating from both sides.

A circuit board from the read/write head can be attached along the plating, which refers to one of the two plating layers, and an extraction line can be extracted from the tail portion of the circuit board.

The plating may include at least the front side or the reverse side of the edge of the leaf spring material.

Plating can also be formed on the front, side and opposite sides of the leaf spring.

The rigid portion may comprise leaf spring material surrounded by plating to form a "U" shape and extending from one end of the leaf spring material towards the spring portion, along the opposite edge of the leaf spring material; extending this portion for a predetermined length. The gimbal spring portion is positioned such that the rigid portion is surrounded by the plating.

The rigid portion may include that portion of the plating formed on the leaf spring material, like a surface extending for a predetermined length from the gimbal spring toward the spring portion.

The rigid portion may include that portion of the plating formed over a predetermined length towards the portion of the spring which is over the entire surface of the leaf spring material and which extends from the gimbal spring.

The rigid portion may include that portion of the plated layer formed on the leaf spring material except for a plurality of blank areas in the spring direction of the leaf spring material extending from the gimbal spring portion.

A circuit board connected to the read/write head may be attached along the longitudinal direction of the suspension spring portion and approximately at its center, and a terminal of the circuit board may be connected to one side of the portion to which the manhole mechanism is attached.

A circuit board connected to the read/write head, which can be connected along the longitudinal direction of the suspension spring part and approximately in its center, where the circuit board wires consist of two halves and can be separated and the light is around the manhole mechanism connector part The mounting holes, and the terminal of the circuit board can be fixed in the most proximal part of the suspension spring part, these also include the access hole mechanism connector part.

The spring portion may have a "U" cut surface so that it can be joined at the "U" cut surface of the manhole mechanism connector.

A second aspect of the present invention is that the head slider support device includes a gimbal spring on which a slider with a read/write head is mounted, the gimbal spring part is combined with one end of the leaf spring material, aligned with the horizontal plane There is stretchability in the transverse direction of; And a suspension spring part comprises a rigid part, it has a predetermined rigidity, and comprises a predetermined leaf spring material length extending from the gimbal spring part; A spring part comprises extending from the rigid part and A predetermined length of leaf spring material from the source, and a connector part of the manhole mechanism will be together with the leaf spring and extend further from the spring part; wherein the rigid part is provided with a plating, at least in the suspension spring extending from the gimbal spring Parts need to be coated.

In a third aspect of the present invention, a data recording/reproducing device includes: a group of multiple magnetic disks, and a rotary drive part rotates the group of magnetic disks; a head slider supporting device has at least a plurality of read/write heads for data recording On and reproduced on a set of disks; and a drive portion of a head slider to drive the head slider support device to record and reproduce data, where the space between every two disks in a set of disks is 0.2mm to Within the range of 1.5mm, the head slider support part has a gimbal spring part on which a slider with a read/write head is mounted. The gimbal spring part is located at one end of the leaf spring material and is aligned with the horizontal plane There is stretchability in the transverse direction of the spring; there is also a suspension spring portion which includes a rigid portion with a predetermined internal stiffness and includes a predetermined length of leaf spring material extending from the gimbal spring portion, and a spring portion which includes leaf springs A predetermined length of material extending from the rigid portion and a manhole mechanism coupler portion together with leaf spring material further extending from the spring portion where the rigid portion is such that at least the suspension spring portion extending over the gimbal spring portion is required. There is plating.

According to a fourth aspect of the present invention, a data recording/reproducing apparatus includes: a set of multiple magnetic disks; a rotating section for rotating the set of magnetic disks; a head slider support device which has at least a plurality of read/write heads for Data can be recorded and copied to multiple disks; and the driving part of a head slider records and reproduces data in order to drive the head slider support device. Here, the space between every two disks in a group of disks is In the range of 0.2mm to 1.5mm, the head slider support device includes a gimbal spring part on which a slider with a read/write head is mounted, and the gimbal spring part is connected to one end of the leaf spring material And it is stretchable in the lateral direction of the horizontal plane; there is also a suspension spring part which includes a rigid part with a certain rigidity, and a predetermined length extending from the gimbal spring part comprising leaf spring material, and A spring portion comprises a predetermined length of leaf spring material extending from the rigid portion, where the rigid portion is such that at least the suspension spring portion extending from the balance spring portion is plated.

By adopting the structure of the above type, it is possible to provide such a head slider support device, which has a small degree of rigidity, as a rotation axis to deal with a support device that is parallel to the recording medium and perpendicular to the head slider support. the axis of the longitudinal direction of the part; and it has a small rolling stiffness to deal with a vibration around an axis parallel to the recording medium and parallel to the longitudinal direction here, so that the stiffness between the gimbal spring portion and the suspension spring portion The difference decreases. Since a thin slider supporting device can be obtained, and the interval between every two magnetic disks in a group of plural magnetic disks is reduced, a thin data recording/reproducing device can be realized.

Fig. 1 is a perspective view showing a first embodiment of a head slider supporting device according to the present invention.

FIG. 2 is a partial perspective view showing details of the balance ring spring portion of FIG. 1. FIG.

Fig. 3 is a sectional view taken along the line III-III in the direction of the arrow in Fig. 2 .

Fig. 4 is a graph showing the relationship between the height of the flange flange and the thickness of the rib plate on the suspension spring, which thickness is required to have the stiffness in different planes and match the flange.

Fig. 5 is a sectional view taken along the line V-V in the direction of the arrow in Fig. 2 .

Fig. 6 is a partial perspective view showing a second embodiment of the head sliding support device according to the present invention.

Fig. 7 is a partial perspective view showing a third embodiment of the head sliding support device according to the present invention.

Fig. 8 is a sectional view taken in the direction of the arrow in Fig. 7, along the line VIII-VIII.

Fig. 9 is a sectional view taken in the direction of the arrow in Fig. 7, along the line VIV-VIV.

Fig. 10 is a sectional view showing a fourth embodiment of the head sliding support device according to the present invention, where the plan view is omitted.

Fig. 11 is a perspective view showing a fifth embodiment of the head sliding support device according to the present invention.

Fig. 12 is a sectional view taken in the direction of the arrow in Fig. 11, along the line XII-XII.

Fig. 13 is a perspective view showing a sixth embodiment of the head slider supporting device according to the present invention.

Fig. 14 is a sectional view taken in the direction of the arrow in Fig. 13 along the line XIV-XIV.

Fig. 15 is a perspective view showing a seventh embodiment of the head slider supporting device according to the present invention.

Fig. 16 is a sectional view taken along the line XIII-XIII in the direction of the arrow in Fig. 15 .

Fig. 17 is a partial plan view showing an eighth embodiment of the head slider supporting device according to the present invention.

Fig. 18 is a partial sectional view showing a ninth embodiment of the head slider supporting device according to the present invention, but the plan view is omitted.

Fig. 19 is a perspective view showing a tenth embodiment of the head slider supporting device according to the present invention.

Fig. 20 is a partial perspective view showing an example of wiring board layout.

Fig. 21 is a perspective view showing an eleventh embodiment of the head slider supporting device according to the present invention.

Fig. 22 is a perspective view showing a data recording/reproducing apparatus employing a head slider supporting device according to the present invention.

Fig. 23 is a graph showing the relationship between the distance between disks and the thickness of the slider.

The following will be described in detail in combination with embodiments of the present invention and with reference to the accompanying drawings.

A first embodiment of the present invention will be described with reference to FIGS. 1 to 3 and 5 . Fig. 1 is a perspective view showing a head slider supporting device. The head slider supporting device includes a suspension spring portion 11 , a gimbal spring portion 12 , and a read/write head mounted on the gimbal spring portion 12 . The head slider support is oscillating back and forth along the surface of the recording medium through a manhole mechanism having a drive portion, the gimbal spring portion 12 is formed adjacent to the end of the rigid portion of the suspension spring portion 11, and A sliding block 13 is mounted on the gimbal spring portion 12 . On the other hand the most proximal end of the suspension spring portion 11 is located next to the connector 18 of a manhole mechanism so that it can be connected with a manhole mechanism, the rigid portion 14 of the suspension spring portion, the spring portion 15, and the gimbal spring portion 12 are formed from a single piece of sheet 10, such as rolled steel. The rigid portion 14 is that portion of the thin plate 10 located between the two sides of the rib 16 in the longitudinal direction of the suspension spring portion 11 . On the rigid part 14, between the ribs, a circuit board 17 is provided, which is a circuit for supplying signals to the magnetic head. The sliding block 13 has an air layer axial surface, which is for the surface of the recording medium, and each surface is away from the recording medium. This is caused by a suspension force caused by the rotation of the recording medium and another due to The deformation of the spring portion 15 is caused by the load force, and the two forces are required to be balanced with each other.

FIG. 2 is an enlarged view of the gimbal spring portion 12 and its vicinity. The gimbal spring part 12 includes a sliding block connector part 19 and a gimbal elastic part 20 . A slide block 13 has a read/write head 21, which is installed and connected on the slide block connector part 19 and in the gimbal spring part 12, supported by a gimbal telescopic part 20, so that it is not flexible on the same plane but Rigid in the same plane. Lead-in wires (not shown) are divided into two groups by the gimbal telescoping portion 20 and then enter the slider connector portion 19, and they are led to the lead end portion 27 and then pressed to the slider end portions (not shown).

FIG. 3 is a sectional view of the rigid portion 14 taken in the direction of the arrow in FIG. 2 along the section line III-III. The ribs 16 are formed by plating on one side of the thin plate 10 and the plate 10 is a rolled steel plate as an example. Coatings can be formed by electroplating, spray vapor coating, and CUD or by sintered glass or ceramics.

According to the above-mentioned structure, the thickness of the rib plate 16 can exceed the thickness of the spring portion 15 or the thickness of the gimbal spring portion 12, so that the rigid portion 14 can obtain the required rigidity. Also as the material of the balance ring spring part 12, such a thin plate as a rolled steel plate has a high precision thickness and can be rolled out without additional processing (for example, a 25 micron thick non-magnetic rolled thin plate sus 304 has a thickness accuracy , less than ±1 micron error). Therefore, it is possible to provide a head slider supporting device having a small degree of stiffness as a rotational axis against vibration about an axis parallel to the recording medium and perpendicular to the longitudinal direction of the head slider supporting member, and A small rolling rigidity counteracts a vibration about an axis parallel to the recording medium and perpendicular to the longitudinal direction, so that the level difference and variation in rolling stiffness are reduced. Therefore, the variation of the floating state of the slider 13 can be greatly reduced, so that the subsequent characteristics against the surface of the recording medium can be improved. The integral construction of the gimbal spring portion 12 which also includes the integral construction of the suspension spring portions together prevents the read/write head 21 from deflecting from the track.

Since the suspension spring portion in this embodiment has a rigid portion 14 whose lead wires are provided with the thin plate 10 with ribs 16, the thickness of the thin plate 10 at the suspension spring portion 11 can be reduced. Fig. 4 is a graph showing the relationship between the height of the flange "h" and the height of the rib "h'" on the suspension spring portion 11, the height "h" required to obtain a stiffness which is not in the same plane as it matches the flange and quite. This figure shows the calculated values based on the assumption that the upper connecting rib 16 has substantially the same mechanical properties as the thin plate 10 made of rolled steel plate, for example, if the flange thickness is 0.076mm and the height is 0.7mm, from the figure It can be understood that the width of the rib is 1-2mm and the height of the rib is about 0.2mm. In other words, the height of the rib is about 30% of the height of the flange. Ribs are used in this method. By increasing the width of the ribs 16, the rigidity in the same plane can be increased, so it can be realized. This can realize the high-frequency natural vibration of the same plane mode of the head sliding block support device, In the first embodiment shown in Fig. 11, in order to avoid increasing the thickness of the suspension spring portion 11, a circuit board 17 such as a printed circuit board whose thickness is equal to or less than the thickness of the rib plate is used to wire the read/write head . The wire extending from the circuit board 17 is in a loose state, and the reason is that the elastic expansion and contraction of the spring 15 is considered. The formation of the head slider supporting device adopts plating, and its manufacturing cost is reduced.

All coatings of the ribs 16 have the same mechanical properties as the sheet 10, for example a rolled steel plate, so that it (the ribs) is strongly bonded to the rolled steel sheet and the sheet 10 made of similar material. It is required that the coating should be made by physical or chemical processes such as electroplating, spraying, vapor coating CVD or sintered glass or ceramics, and should be composed of a non-magnetic material. More specifically, as a non-magnetic material it can be sprayed on stainless rolled steel sheets (such as sus304), for example, the sprayed coating of Nip is effective, and a high-performance coating is obtained by using electroless Nip This is especially important for coatings. The coating plated by electroless Nip has mechanical properties equivalent to those of stainless steel materials, and its strength can be obtained by heat treatment.

Another process of forming the rib plate 16 plate is to first coat a layer of uniform coating on the entire surface of the thin plate 10, where the type of the balance ring spring part has ended, then add an anti-ultraviolet sensitive agent, and then expose to make the anti-ultraviolet The sensitive rib area undergoes polymer polymerization, and the next step is to etch away the parts that do not need to be coated with nitric acid.

Adopt coating method to carry out coating, for example, rib plate 16 can be formed to have high precision and be easy, here rigid part 14 can be applicable to the head sliding support device after reducing size, and this just can have magnetic disk device size reduction and capacity There is an increasing tendency, so a small-sized head slider support device can be realized.

Fig. 5 is a sectional view taken along the line V-V of Fig. 2 . Ribs 16 for increased rigidity are formed on the surface of the thin plate 10 where the slide block 13 is mounted. According to this embodiment, the rib 16 is formed with a thickness smaller than that of the slider 13 resulting in a thinner suspension spring portion 11, so that the rib 16 does not come into contact with the recording medium and with this arrangement, the slider is prevented from contacting the recording medium. Therefore, a thin suspension spring portion 11 can be realized.

If the coating and the rib plate 16 formed by the sliding block 13 are similar, the contact between the sliding block and the recording medium can be prevented, and similar manufacturing processes can be used to form the sliding block 13 and the rib plate 16, and this process is carried out from the thickness of the thin plate. On the one hand, the accuracy of the head position is improved, and the manufacturing cost and labor hours are also reduced. The process of forming the head slider support device will be described with reference to FIG. 2 . A deflection material such as alumina (or aluminum oxide) is first plated on the slider connector portion 19 as a primer, and then a low magnetic plating such as magnetic iron-nickel alloy (or permalloy) is plated. A shape-specific molding work is then performed using ion milling, a conductor coil is formed using a spacer insertion method, and an upper magnetic coating, which forms a magnetic core, into which a spacer is also inserted. The upper and lower magnetic plating layers are further formed in the direction through the thickness, but there is a prescribed interval between the upper and lower magnetic plating layers, thus causing a magnetic gap parallel to the recording medium in the surface. In addition, a thin coating is applied on the top-isolating layer to obtain wear resistance, and this coating material such as silicon carbide or carbon is coated, so that the sliding block 13 is formed.

Fig. 6 is a perspective view of the gimbal spring portion 12 and its vicinity showing a second embodiment of the head slider supporting device according to the present invention. The feature of this embodiment is that the rib plate 16 will provide the rigid part 14 on the longitudinal two sides of the suspension spring part 11, so it (referring to 16) is extended and surrounded on the gimbal spring part 12 and connected together therewith. With such a structure, the rigidity of the rigid portion 14 can be further increased to prevent the torsional deformation of the suspension spring portion 11, which occurs when the ribs are separated at two sides, thereby improving the torsional vibration performance. For the sake of simplification, this description only shows a part of the circuit board, and its terminal part is omitted.

Fig. 7 is a perspective view of the gimbal spring portion 12 and its vicinity but it is a third embodiment of the head slider supporting device according to the present invention. This embodiment is characterized in that the ribs 16 are provided on the rigid portion 14, as well as on the upper and lower surfaces of the sheet. Figure 8 is a cross-sectional view of this implementation, taken along the line VIII-VIII of Figure 7. With this structure, the thickness of the suspension spring portion 11 can be reduced, and the rigidity in the same plane and the rigidity in the torsional direction can be improved. It also reduces deformations due to bimetallic effects due to temperature changes, which occur when the ribs 16 are on one side only.

This head slider supporting device, according to this embodiment is an example of a structure to show that the gimbal spring portion 12 is rotated by 90° in the direction shown in FIG. 2 . According to this structure, these arms connecting the gimbal telescopic part 20 and the suspension spring part 11 are located in the transverse direction through the longitudinal direction of the head slider support device, so there is no need to set ribs 16 at these parts, and the above-mentioned parts extend As far as the end of the gimbal spring portion 12, it is thus possible to reduce the mass of the head slider support, increase its natural frequency and enable high speed maintenance operations.

Fig. 9 is a sectional view taken along line VIV-VIV of Fig. 7 . For example, both sides have ribs 16 and the upper and lower surfaces of the thin plate 10 are formed of rolled sheet steel, and a connector portion spacer 26 is provided at the slider connector portion 19 of the gimbal spring portion 12 . If this connector part spacer 26 is made with the plated material of rib 16 or similar material, so this connector part spacer 26 can be formed simultaneously with each rib, when this slider 13 and gimbal telescopic part 20 When stacked one on top of the other, the connector part spacer 26 acquires several degrees of freedom to offset the plane of rotational movement of the sliding block 13 . The connector part spacer 26 can also be made of other materials.

FIG. 10 shows a fourth embodiment according to the present invention, which is a modification of the example shown in FIG. 8 . In this embodiment the ribs on the upper and lower surfaces are joined together. The effect of this is that the ribs 16 can be firmly connected and the surface layer of the rib plating can be simplified.

FIG. 11 is a perspective view showing a fifth embodiment of the present invention, and FIG. 12 is a side view. A reinforcing layer 16 is formed on the rigid portion 14 and is located in the central portion of the sheet, leaving the sides of the suspension spring portion 11, and the spring portion 15 exposed. The circuit board is omitted, and the strengthening coating 16 is made by the same process as that of the first embodiment, but the anti-ultraviolet sensitive form is changed. This reinforcing plating layer 16 can be easily plated, and this structure serves as a means to reduce the size of the head slider supporting device.

Fig. 13 shows a perspective view of a sixth embodiment of the present invention. Fig. 14 is a sectional view taken along line XIV-XIV of Fig. 13 . Speaking of the process of forming the rigid part, this reinforcing layer 16, in order to enhance its rigidity, is plated on the thin plate, the lower surface and its two sides, so that it can be used as a whole coating, but the spring part, and the suspension spring The gimbal spring portion 12 of the portion 11 is exposed. This enables size reduction and cost reduction due to the simplicity of the plating process. Plating is applied to the upper and lower surfaces, so deformation due to temperature changes is also reduced.

Fig. 15 is a seventh embodiment of the head sliding support device according to the present invention, and Fig. 16 is a sectional view taken along line XVI-XVI of Fig. 15 . For example, the suspension spring portion 11 and the balance spring portion 12 are made of separate parts and then welded together. Using this method of separating parts requires its defect tracking scan. But the advantage of this method is that the suspension spring part 11 can be made thinner, and the size of the gimbal spring part 12 can be reduced.

FIG. 17 is a plan view of an eighth embodiment of the head slider supporting device of the present invention, showing only the rigid portion 14 of the suspension spring 11. FIG. In the suspension spring part 11, the rigid part 14, the spring part 15 and the gimbal spring part 12 are made of the same thin plate 10. The rigid part 10 has stiffening ribs 16 as well as transverse ribs 24 arranged in the transverse direction of the suspension spring part 12 like rungs of a ladder. As a result of the structure, the stiffness not in the same plane (especially for torsion) and the stiffness in the same plane are increased. The transverse ribs 24 adjacent to the spring portion 15 have the following functions: when the load is distributed irregularly, avoid the stress concentration generated by the load, prevent plastic deformation, and reduce the load irregularity when the load is applied to the sliding block 13. distributed.

18 is a cross-sectional view of a ninth embodiment of the rigid portion of the suspension spring portion 11 of the head slider support device of the present invention. This implementation is taken as an example, and the area surrounded by the ladder-like ribs 16 in the thin plate 10 shown in FIG. 17 is an empty space 25 . This kind of structure simplifies the surface layer of the plating layer and realizes weight reduction of the supporting device of the sliding block of the head.

Fig. 19 is a perspective view of a tenth embodiment of the head slider support device of the present invention. The feature of this embodiment is that the circuit board 17 extending from the read/write head 21 is installed in the longitudinal direction of the rigid part of the suspension spring part 11 and in its central part until the closest position to the manhole mechanism connector part 18, And the terminal 51 of the circuit board 17 is located on the side of the manhole mechanism connector 18 . The structure of the head slider supporting device is basically the same as that shown in FIG. 1 . The slider is mounted on the upper surface of the gimbal spring portion 12 in this example because the slider 13 moves over the underside of the recording medium.

Figure 20 is a partial perspective view of the head slider support device of the present invention. In this embodiment, the circuit board 17 extending from the read/write head 21 is mounted so that the circuit runs through the rigid portion 14 and on the opposite side of the manhole mechanism connector portion 18, with each second of the circuit board 17 The two sets of wires are set such that the two sets of wires run separately and around the mounting holes 52 with the respective ends 51 of the circuit board 17 being the most proximal ends of the manhole mechanism connector portion 18 .

Figure 21 shows a perspective view of an eleventh embodiment of the head slider support. The head slider support member employs the cutting portion 53 located in the spring portion 15 to reduce the area of the spring portion 15, thus pressing a small force load against the recording medium.

A magnetic disk device employing the head slider supporting means in the present invention will be described below. Fig. 22 is a perspective view, partially broken away, showing an embodiment on a magnetic disk device. The recording medium 41 is stacked and attached to a rotating shaft (not shown) and the recording medium 41 is driven to rotate by a motor attached to the rotating shaft. A read/write head (electromagnetic sensor) 21 changes from written data to read data and then enters the recording medium 41 , and this read/write head is mounted on the slider 13 . The slider 13 is supported by a head slider supporting device 42 , and the head slider supporting device 42 is connected to a positioning mechanism 44 . In this example, the positioning mechanism 44 makes the read/write head move around the axis of rotation, and the read/write head is positioned on a target rail by moving the slide block, that is, the slide block 13 moves on the path of the recording medium 41. direction, and the recording medium 41 is driven by a driving section 45 such as a voice coil motor. This type is called a spin-first fetch system. The recording medium 41, the slider 13, the head slider supporting device 42, the positioning mechanism 44 and the driving section 45 are housed in a housing 46.

According to this structure, the rigid part 14 of the suspension spring part 11 of the head slider supporting device is formed by plating, and is plated on a thin plate by an electroplating method, and its thickness is exactly the thickness of the balance ring spring part 12, so a head slider The supporting means can be made of a thin plate so that the space between the magnetic disks becomes smaller so that many magnetic disks can be gathered in the main casing of the data recording/reproducing device. Keeping the number of disks constant, the height of the device can be reduced. For example, when a slider has a thickness of 0.4mm, if the height of the rib plate is comparable to that of a flange in order to obtain rigidity, its height "h" is set at 0.2mm as shown in Figure 4 and the spacing required for installation in this device should be 0.2mm, so that the space between disks can be t=(0.4+0.2)×2+0.2=1.4mm, or close to this number.

Fig. 23 is a graph showing the relationship between slider thickness and disk spacing when sliders of different thicknesses are used. The solid line "a" represents the situation of the head slider supporting device of the above type, and the dotted line "b" represents the situation of the head slider supporting device in the embodiment shown in Figure 6. Since the thickness of the slider becomes smaller, the The mass is also reduced and the rigidity of the whole head slider supporting device is increased, so the ribs can be made thinner. Therefore, the space between disks can be made 1.5mm or smaller. The limit of this value can be as small as about 0.2mm. In practical applications, it is desirable to set the interval between the special disks at 1.5 mm to 0.6 mm.

According to this structure, since the natural frequency is high and the vibration of the offset guide rail is low, the selection speed can be increased, the setting time can be shortened and the selection time can also be reduced.

Claims (19)

1. A head slider support device consisting of: a gimbal spring portion on which is mounted a slider which has a read/write head, the gimbal spring portion forming one end of the leaf spring material and having a stretch in its transverse direction with respect to the horizontal plane; and A suspension spring section comprising a rigid section comprising a predetermined length of leaf spring material extending from the gimbal spring section and a spring section comprising a predetermined length of leaf spring material extending from the rigid section and an access hole mechanism The connector part and the leaf spring material together extend further from the spring part, characterized in that the rigid part is provided with a plating at least on the part of the suspension spring extending from the gimbal spring. 2. A head slider support as claimed in claim 1, wherein said rigid portion comprises a portion of the leaf spring material located between two coatings, which is formed from one end of the leaf spring along the The opposite edge of the leaf spring material, towards the predetermined length of the section of the spring portion, the gimbal spring portion is positioned such that the aforementioned rigid portion is secured from both sides by the plating. 3. According to the head slider support device described in claim 2, it is characterized in that: a circuit board extending from the read/write head is connected along one of the plating layers, and the wire is connected from the end of the circuit board derived from the header. 4. The head slider supporting device according to claim 2, wherein said plating layer is formed at least on the front side and the opposite side of the edge of the leaf spring material. 5. The head slider supporting device according to claim 2, wherein said plating layer is formed on the front side, the lateral side and the reverse side of the edge of the leaf spring material. 6. The head slider supporting device according to claim 1, characterized in that: the part of the above-mentioned rigid part including the leaf spring material is formed by being surrounded by a plating layer, and its shape is like a "U" shape, which extends from the blade One end of the spring material extends a predetermined length along the opposite edge of the leaf spring material toward the spring portion, the gimbal spring portion being positioned such that the rigid portion is surrounded by the plating. 7. The head slider supporting device according to claim 2, wherein said rigid portion including a plated portion is formed on a leaf spring material shaped like a plane, and it is formed from the balance ring spring portion toward extending a predetermined length in the direction of the spring portion. 8. The head slider supporting device according to claim 1, wherein said rigid portion includes a plated portion on the entire surface of the leaf spring material from the gimbal spring portion toward the spring portion Formed and extended to a specified length. 9. The head slider support as claimed in claim 1, wherein said rigid body portion including the plated portion is formed on leaf spring material but does not include a plurality of pieces extending from the gimbal spring portion The blank area that is open in the direction of the spring portion of the spring material. 10. The head slider supporting device according to claim 1, wherein a circuit board pressed to the read/write head is connected along the longitudinal direction of the suspension spring portion and approximately at its center, and the circuit board to the side of the manhole mechanism connector section. 11. The head slider supporting device according to claim 1, wherein a circuit board connected to the read/write head is connected along the longitudinal direction of the suspension spring portion and approximately at the center thereof. The wiring of the two halves in the circuit board is arranged so that the two halves are separated and run around the mounting hole of the connector part of the manhole mechanism, and the terminal block of the terminal board is fixed to the most proximal part of the suspension spring part, which also includes the manhole mechanism connection device part. 12. The head slider supporting device according to claim 1, wherein the above-mentioned spring part includes a "U"-shaped cut-off part, and the connector part of the inspection hole mechanism is cut off in the "U"-shape The parts are connected. 13. The head slider support device includes: a gimbal spring portion on which is mounted a slide block which has a read/write head, the gimbal spring portion is connected to one end of the leaf spring material and is stretchable laterally with respect to a horizontal plane, and A suspension spring section comprising a rigid section having a predetermined stiffness and a predetermined length of leaf spring material extending from the gimbal spring section, a spring section comprising a predetermined length extending from the rigid section and an overhaul The socket mechanism connector portion together with the leaf spring material and extending further from the spring portion is characterized in that the rigid portion has a plating, at least on that portion of the suspension spring extending from the gimbal spring. 14. The head slider supporting device according to claim 13, wherein said rigid portion comprises a portion of the leaf spring material located between the two plating layers, and this portion starts from one end of the leaf spring material along the The opposite edge of the leaf spring material; towards the predetermined length of the spring portion, the gimbal spring portion is positioned such that the rigid portion is secured by the plating on both sides. 15. The head slider support as claimed in claim 14, wherein a circuit board extending from the read/write head runs along and connects to one of the platings, the wires being routed from the end of the circuit board The head part is quoted. 16. The head slide supporting device according to claim 14, wherein said plating layer is formed at least on the front side or the reverse side of the edge of the leaf spring material. 17. The head slide supporting device according to claim 14, wherein said plating layer is formed on the front side, the lateral side and the opposite side of the edge of the leaf spring material. 18. A data recording/reproducing device comprising: A set of multiple disks; A rotary drive segment is used to spin a multi-disk pack. A head slider support assembly having at least several read/write heads for recording and reproducing data for multiple disk packs. A head slider driving section is used to drive the head slider supporting device to record and reproduce data, and it is characterized in that, in the multi-disk group, the interval between every two disks is 0.2-1.5mm. Also, the head slider supporting device has a gimbal spring portion on which a slider is mounted which has a read/write head, and the gimbal spring portion is formed at one end of the leaf spring material, and in relation to a horizontal plane. There is stretchability in the lateral direction; and a suspension spring portion includes a rigid portion, which has a predetermined stiffness, and also includes a predetermined length of leaf spring material extending from the gimbal spring portion; a spring portion includes extending from the rigid portion. a predetermined length of leaf spring material, and a manhole mechanism connector portion extending further from the spring portion together with the leaf spring material, and The rigid portion is plated, at least on the suspension spring portion extending from the gimbal spring portion. 19. A data recording/reproducing device comprising: a multi-block disk group A rotary drive segment for spinning multiple disks. a head slide support having at least a plurality of read/write heads for recording and reproducing data on a plurality of disk packs; and A head slider driving section records and reproduces data in order to drive the head slider supporting device, and is characterized in that: The interval between every two disks in the multi-disk group is 0.2-1.5mm. The head slider support device has a gimbal spring portion on which is mounted a slider which has a read/write head, the gimbal spring portion is connected to one end of the leaf spring material, and with respect to a horizontal plane, in the lateral direction directionally stretchable; and a suspension spring portion comprising a rigid portion having a predetermined stiffness comprising a predetermined length of leaf spring material extending from the gimbal spring portion, and a spring portion comprising leaf spring material extending from the rigid body portion a predetermined length of, and the manhole mechanism connector portion and leaf spring material together extend further from the spring portion, and The rigid portion is plated, at least on the suspension spring portion extending from the gimbal spring portion.

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