JP2003085942A - Disk unit having air flow adjusting mechanism and producing method thereof as well as thin film member incorporated thereto - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk unit which effectively suppresses the influence of vibration, etc., on a storage disk affected by air flow in the surrounding of the rotating storage disk by means of the air flow adjusting mechanism which can be mounted easily at low cost. SOLUTION: This disk unit 10 is provided with a plurality of thin film members 36 with which the desirable contour parts in a plurality of suspension arms 26 of an actuator 20 are covered respectively. The respective thin film members 36 are covered to the contour parts around through-holes for reducing inertia moment disposed on the corresponding suspension arms 26, is adhered on the arm surface and shuts the through-holes. The thin film members 36 substancially flatten the contour parts around the through-holes of the suspension arm 26 and smoothly guide the air flow generated around the storage disk 16 during high-speed rotation. Thereby, the air flow is stabilized and the influence of vibration, etc., affected on the actuator 20 is suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk device for writing and reading data to and from a storage disk, and more particularly to an air flow adjusting mechanism for adjusting an air flow generated around a storage disk accompanied by a high speed rotating storage disk. The present invention relates to a provided disk device. The invention also relates to a method of manufacturing such a disc device. The present invention further relates to a thin film member incorporated in such a disk device as an air flow adjusting mechanism.

[0002]

2. Description of the Related Art In a disk device used as an auxiliary storage device of an information processing device, a magnetic disk, an optical disk,
Various disk-shaped storage media such as magneto-optical disks (referred to as storage disks in this specification) are rotated at high speed, and a head portion is tracked to a large number of recording tracks concentrically set on the recording surface of the storage disk. Data is written and read by performing a tracking operation. The tracking performance of the head part depends on the positioning accuracy in the servo control operation of the actuator that supports the head part. Particularly in recent years, as the recording density of the storage disk has been remarkably improved, the demand for the positioning accuracy of the actuator has become considerably strict.

In order to enable the actuator to perform such highly accurate tracking operation, it is required to minimize the disturbance factors that affect the operation of the actuator. For example, an airflow that accompanies a storage disk that is rotating at a high speed and that occurs around the storage disk may collide with the actuator and become turbulent, which may cause vibrations in the actuator and the storage disk. Especially, like a hard disk drive, the actuator
In a configuration including a suspension arm that is rotatable along a support shaft and extends along the recording surface of the storage disk, the turbulent airflow causes the suspension arm to vibrate, which results in positioning accuracy of the head and between the head and the disk recording surface. There is a concern that the accuracy of the gap dimension between them may deteriorate.

As a measure against such a problem, various disk devices have been proposed which are equipped with an air flow adjusting mechanism for adjusting the air flow generated around a high speed rotating storage disk. For example, US Pat. No. 5,854,725 discloses a hard disk drive having a plurality of guide members mounted on the surface of an arm of an actuator. These guide members are small pieces having a streamlined or wedge-shaped outer shape, and are fixed to the windward side and the leeward side of the arm surface with an adhesive or the like.
Each guide member smoothly guides the airflow generated around the storage disk during high-speed rotation along the outer surface of the actuator arm to form a laminar flow, thereby reducing the influence of vibration or the like on the arm.

Further, US Pat. No. 5,446,612 discloses a hard disk drive in which an arm of an actuator is provided with wings. The wing of the arm receives the air flow associated with the rotation of the storage disk and generates a force that brings the head at the tip of the arm closer to the disk. This stabilizes the floating operation of the head, and improves the accuracy of the gap dimension between the head and the disk recording surface.

In Japanese Patent Laid-Open No. 2001-23347, the disk is inserted between a plurality of storage disks, and a certain distance is provided over the head moving range on the downstream side in the disk rotation direction with respect to the head at the arm tip of the actuator. Disclosed is a hard disk device having an air rectifying blade arranged. The air straightening vane has a streamlined cross section and straightens the flow of air between the disks in the vicinity of the arms to suppress vibrations of the disks and the arms. Similarly, Japanese Patent Laid-Open No. 2000-2280
Japanese Patent Publication No. 79 discloses a hard disk device provided with a comb-shaped rectifying member that is inserted between a plurality of arms of an actuator.

Further, in Japanese Patent Laid-Open Nos. 5-101557 and 5-100061, an arm is provided by attaching an elastic body and a shock absorber to the arm of the actuator, or by covering the arm rotating shaft with a vibration-proof material. Disclosed is a hard disk device that absorbs shocks when starting and stopping.

[0008]

For example, in a conventional hard disk device, in order to reduce the moment of inertia of the suspension arm when the actuator is operating, there is a structure in which a through hole or a notch is provided at a required position of the arm to reduce the weight of the suspension arm. It is common. In this configuration, due to the through holes and the notches, the airflow flowing along the outer surface of the suspension arm becomes extremely turbulent, which is likely to cause vibration of the suspension arm more easily in cooperation with the weight reduction. .

With the various air flow adjusting mechanisms in the above-mentioned prior art, it is difficult to directly prevent turbulence of the air flow due to through holes or notches provided in the suspension arm for reducing the moment of inertia. is there. Moreover, as the number of suspension arms increases, the configuration of the air flow adjusting mechanism becomes more complicated, and as a result, there is a concern that the manufacturing process of the hard disk device will become complicated and the manufacturing cost will increase. Further, it is expected that the airflow adjusting mechanism described above will not function effectively for other disk devices that do not have suspension arms.

An object of the present invention is, in a disk device for writing and reading data to and from a storage disk, adjusting an air flow generated around the storage disk along with the storage disk rotating at a high speed, and particularly the air flow affects an actuator. An object of the present invention is to provide a disk device provided with an air flow adjusting mechanism that can effectively suppress the influence of vibration and the like and that can be inexpensively and easily installed.

Another object of the present invention is to provide a disk device equipped with a suspension arm capable of pivoting a support shaft extending along a recording surface of a storage disk, and a through hole provided in the suspension arm for reducing a moment of inertia. An object of the present invention is to provide a disk device provided with an airflow adjusting mechanism that can directly prevent turbulence of airflow due to a notch.

Still another object of the present invention is to provide a manufacturing method for manufacturing such a disk device inexpensively and easily. Still another object of the present invention is to provide a thin film member that can be incorporated into a disk device as an air flow adjusting mechanism.

[0013]

In order to achieve the above object, the invention according to claim 1 has a rotatable storage disk having a recording surface, and a head portion facing the recording surface of the storage disk. And an air flow adjusting mechanism that adjusts the air flow that accompanies the rotating storage disk and is generated around the storage disk. A disk device is provided, which comprises a thin film member that covers a desired contour portion of an actuator and is fixed to a surface of the actuator, and the thin film member stabilizes an air flow along the contour portion.

According to a second aspect of the present invention, in the disk device according to the first aspect, the actuator includes a suspension arm capable of pivoting about a support shaft extending along a recording surface of the storage disk, and the thin film member is Provided is a disk device which covers a contour portion of a suspension arm and is fixed to a surface of the suspension arm.

According to a third aspect of the present invention, there is provided the disk device according to the second aspect, wherein a through hole is formed in the contour portion of the suspension arm and the thin film member shields the through hole.

According to a fourth aspect of the present invention, in the disk device according to any one of the first to third aspects, the thin film member has a tubular heat-shrinkable resin film layer, and the heat-shrinkable resin is formed. Provided is a disk device which is fixed to the surface of an actuator by the heat shrinkage effect of a film layer.

According to a fifth aspect of the present invention, in the disk device according to any one of the first to third aspects, the thin film member is a resin film layer and an adhesive layer is attached to one side of the resin film layer. There is provided a disk device which has: and is fixed to the surface of the actuator through an adhesive layer.

According to a sixth aspect of the present invention, in the disc device according to any one of the first to fifth aspects, the thin film member has a resin damping layer for reducing vibration and impact of the actuator. Provide a device.

According to a seventh aspect of the present invention, in the disk device according to any one of the first to sixth aspects, the airflow adjusting mechanism causes a vibration or a peak value of an impact generated by an impact force applied to the casing of the disk device. There is provided a disk device further comprising a surface for reducing the vibration impact force between the casing and the storage disk by reducing

According to an eighth aspect of the present invention, in the disk device according to any one of the first to seventh aspects, the air flow adjusting mechanism has an antistatic function, a bias adjusting function, and an electromagnetic interference noise shielding function for the disk device. And a disk device further having at least one function of radio frequency interference shield function.

According to a ninth aspect of the present invention, there is provided a method of manufacturing a disk device having an air flow adjusting mechanism for adjusting an air flow generated around a rotating storage disk, wherein the head is arranged so as to be opposed to the recording surface of the storage disk. Prepare an actuator that supports the actuator part, prepare a heat-shrinkable thin film member having a size and shape capable of covering the desired contour portion of the actuator after heat shrinking, and arrange the thin film member at a position to cover the contour portion of the actuator Then, a manufacturing method is provided in which the thin film member is fixed to the surface of the actuator while covering the contour portion of the actuator by heating and contracting the thin film member.

The invention according to a tenth aspect is the first to the eighth aspects.
A thin film member to be incorporated into the disk device according to any one of 1 to 6 as an air flow adjusting mechanism.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, the same or similar components are designated by common reference numerals. Referring to the drawings, FIG. 1 is a perspective view showing a disk device 10 according to an embodiment of the present invention with a casing cover removed, and FIG. 2 is an exploded plan view showing a main part of an actuator of the disk device 10. Is. Disk device 10
Has a configuration of a hard disk device used as an auxiliary storage device of an information processing device such as a personal computer.

The disk device 10 includes a casing 12,
A plurality of (three in the figure) storage disks 16 that are rotatably installed in the casing 12 about a common drive shaft 14 and each have a recording surface 16a, and the storage disks 1
A drive source (not shown) that rotationally drives 6 and a movably installed inside the casing 12 near the storage disk 16.
While supporting the plurality of head portions 18 in a state of facing the recording surfaces 16a of the plurality of storage disks 16, respectively,
An actuator 20 for causing the head portion 18 to perform a track following operation on the recording surface 16a,
And a servo mechanism 22 that drives the actuator 20.

The casing 12 has a rigid structure made of, for example, a metal material through a casting process and the like, and is provided with a bottomed recess 24 for stably accommodating the above-mentioned main components of the disk device 10. A cover (not shown) is attached to the casing 12 to shield the recess 24 in a state where the main component group is housed in the recess 24.

The storage disk 16 has recording surfaces 16a on both sides.
And a plurality of recording tracks (not shown) that are concentrically set around the rotation axis are formed on each recording surface 16a. Multiple storage disks 1
6 are fixedly attached to the common drive shaft 14 at regular intervals in the axial direction, and rotate at a high speed in synchronization with each other by the driving action of the drive source (the rotation direction is indicated by an arrow α).

The actuator 20 is a storage disk 16
A plurality of (four in the figure) suspension arms 26 capable of pivoting support shafts, each extending along the recording surface 16a, are provided. The suspension arms 26 are integrally connected to each other at their base ends, and the integrated connection part 2
6a is attached to a common shaft 28. At the end of each suspension arm 26, a leaf spring-shaped head support plate 30 is provided.
Are connected, and the head portion 1 is attached to the end of each head support plate 30.
A slider 32 (see FIG. 5) forming part 8 is carried.
The plurality of suspension arms 26 are turned by the driving action of the servo mechanism 22 in synchronization with each other over a predetermined angle range around the shaft 28 (the turning direction is indicated by an arrow β). As a result, the head portion 18 at the tip of the head support plate 30 connected to each suspension arm 26 performs a tracking operation with respect to the recording track set on the recording surface 16a of the corresponding storage disk 16, and data is recorded on the recording surface 16a. Writing and reading are performed.

The actuator 20 is provided with a through hole 34 (FIG. 2) at a substantially central position of each suspension arm 26 in order to reduce the moment of inertia of the plurality of suspension arms 26 during its operation, thereby reducing the weight of the arm 26. . With this configuration, when the actuator 20 operates, that is, when data is read and written, the airflow that accompanies the plurality of storage disks 16 that rotate at high speed and that occurs around the storage disks 16 collides with the plurality of suspension arms 26 of the actuator 20. There is a risk that the suspension arms 26 will be significantly turbulent at the positions of the through holes 34 of the respective arms 26, causing non-negligible vibrations to the suspension arms 26. Therefore, the disk device 10 has an airflow adjustment having the following characteristic configuration that can adjust the airflow generated around the storage disk 16 that is rotating at a high speed, and particularly effectively suppress the influence of the airflow on the actuator 20, such as vibration. The mechanism is equipped.

The air flow adjusting mechanism of the disk device 10 includes a plurality of thin film members 36 that cover desired contour portions of the plurality of suspension arms 26 of the actuator 20, respectively. Each thin film member 36 surrounds the contour portion around the through hole 34 of the corresponding suspension arm 26 over both sides of the arm and is fixed to the surface of the suspension arm 26, thereby shielding the through hole 34 on both sides of the arm. The thin film member 36 having such a configuration is
The contour portion around the through hole 34 of the suspension arm 26 is substantially smoothed, and as a result, the airflow along the contour portion is smoothly guided to stabilize in a substantially laminar flow state. As a result, the influence of the air flow on the actuator 20, such as vibration, is extremely effectively suppressed. Further, the configuration in which the thin film member 36 having a simple structure as described later is fixed to a desired position of the suspension arm 26 contributes to simplification of the manufacturing process of the disk device 10 and reduction of the manufacturing cost.

As shown in FIG. 3, the thin film member 36 has a hollow cylindrical structure that is substantially trapezoidal in plan view and corresponds to the contour shape of the periphery of the through hole 34 of the suspension arm 26. According to such a structure, even in the configuration of the illustrated embodiment in which the actuator 20 has the plurality of suspension arms 26, the head support plate 30 connected to the suspension arms 26 can be inserted into the hollow portion of the thin film member 36 from its tip. Thereby, the thin film member 36 can be easily attached to a desired position of the corresponding suspension arm 26.

The hollow cylindrical thin film member 36 can be fixed to the surface of the suspension arm 26 via an adhesive, for example. However, in order to simplify the work of fixing the thin film member 36, it is advantageous that the thin film member 36 has a tubular heat-shrinkable resin film layer. With this configuration, the thin film member 36 can be extremely easily fixed to the surface of the suspension arm 26 by the heat shrinkage action of the heat shrinkable resin film layer. The thin film member 3
The entire 6 may be formed of a heat-shrinkable resin film layer, or the thin film member 36 may have a multi-layer structure including a heat-shrinkable resin film layer. In either case, the thin film member 36 is formed of a resin material that is easy to reduce in weight so as to suppress an increase in the moment of inertia of the suspension arm 26.

The thin film member 36 having the tubular heat-shrinkable resin film layer is manufactured by the following procedure.
Is fixed to the suspension arm 26. First, an actuator 20 having a suspension arm 26 supporting the head portion 18 is prepared, and a thin film member 36 having an original size and an original shape capable of covering a contour portion around the through hole 34 of the suspension arm 26 after heat shrinking is prepared. (Fig. 2). Then, the head support plate 30 connected to the suspension arm 26 is attached to the thin film member 36 from the tip thereof.
Of the thin film member 36 at a position surrounding the outline portion around the through hole 34 of the suspension arm 26.
Are arranged (FIG. 4A). Then, by heating the thin film member 36 to a predetermined temperature to shrink the thin film member 36, the thin film member 3 is formed on the surface of the suspension arm 26 in a state where the outline portion around the through hole 34 is covered and the through hole 34 is shielded.
6 is fixed (FIG. 4 (b)).

Materials that can be suitably used for the heat-shrinkable resin film layer of the thin film member 36 are, for example, polyester-based stretched film of trade name "Hishipet" available from Mitsubishi Plastics Co., Ltd. (Tokyo, Japan) First name "D
XL "stretched polystyrene film is included. In this case, the “Hishipet” film is 30 μm to 50 μm
Thickness is 40μm for "DXL" film
It is available in a thickness of 80 μm. Both materials
In the fixing procedure of the thin film member 36 described above, about 100 ° C.
Good shrinkage / sticking action is obtained by heating to ~ 160 ° C. When the disk device 10 is exposed to this temperature at a predetermined stage in the manufacturing process, the thin film member 36 before contraction is placed at a predetermined position on the suspension arm 26 before the heating stage, as described above. By disposing, the heating step only for the purpose of heat contraction of the thin film member 36 can be omitted.

As an air flow adjusting mechanism of the disk device 10, instead of the hollow cylindrical thin film member 36 described above, FIG.
Alternatively, a flat plate-shaped thin film member 38 as shown in FIG. In this case, the thin film member 38 includes a resin film layer 40 having a substantially trapezoidal shape in plan view corresponding to the contour shape around the through hole 34 of the suspension arm 26, and an adhesive layer 42 attached to one surface of the resin film layer 40. Have.

The thin film member 38 is used for the suspension arm 2
The contour portion around the through hole 34 of 6 is preferably covered on one side of the arm (upper surface in FIG. 7) and fixed to the surface of the suspension arm 26 via the adhesive layer 42. Also with the thin film member 38 having such a configuration, by shielding the through hole 34 of the suspension arm 26 on one side of the arm, the contour portion around the through hole 34 is substantially smoothed, and as a result, this contour portion is formed. The air flow along it is smoothly guided and stabilized in a substantially laminar manner. As a result, the influence of the air flow on the actuator 20, such as vibration, is extremely effectively suppressed. The thin film member 38
Can be fixed to both sides of the suspension arm 26.

The resin film layer 40 of the thin film member 38 is not particularly limited, but a film made of polyethylene terephthalate (PET), polypropylene, polyethylene, polyimide or the like can be adopted. The pressure-sensitive adhesive layer 42 can be made of a general pressure-sensitive adhesive, preferably an acrylic pressure-sensitive adhesive. In this case, 25 μm to 100 μm
Of the PET resin film layer 40 having a thickness of 25 μm to 1
The pressure-sensitive adhesive layer 42 having a thickness of 00 μm is preferably used in appropriate combination.

As the resin film layer 40 of the thin film member 38, not only a film having a smooth main surface on the side opposite to the adhesive layer 42 but also a film having fine irregularities on the main surface can be adopted. Examples of such a film include a film having a large number of fine ridges 44 shown in FIG.
A film having a large number of fine protrusions 46 shown in FIG. In any case, by appropriately orienting and fixing the thin film member 38 on the surface of the suspension arm 26, the unevenness of the main surface of the resin film layer 40 causes the air flow generated around the storage disk 16 during high-speed rotation. On the other hand, it exerts the above-mentioned rectifying action. As a result, the stabilization of the airflow is promoted, and the influence of the airflow on the actuator 20, such as vibration, is further effectively suppressed.

[0038] As another example of the fine ridges 44 suitably formed on the resin film layer 40, US Pat.
No. 496, No. 5069403, No. 5133516.
10 disclosed in Japanese Patent No. 5848769.
The shapes shown in the sectional views can be mentioned in (a) to (e). In the fine protrusions 44 of various shapes shown in FIGS. 8 and 10, the height of each protrusion 44 (distance from the base end to the apex)
Is preferably 20 μm to 400 μm, the angle of the V-shaped base end intersecting portion (that is, the valley) is 15 ° to 140 °, and the interval between the vertices of the adjacent ridges 44 is preferably 20 μm to 400 μm. The fine ridges 44 of any shape can exhibit an effective rectification action on the air flow by ensuring the proper directionality of the thin film member 38 on the surface of the actuator 20.

As the adhesive layer 42 of the thin film member 38, a viscoelastic material available from Minnesota Mining and Manufacturing Co. (Minnesota, USA) under the trade name of "Scotch Dump" is used instead of a general adhesive. A damping tape (product number: JPV115, 242F01, etc.) can also be used. In this case, since the pressure-sensitive adhesive layer 42 itself can exert a vibration damping effect as a resin vibration damping layer, the vibration and impact of the actuator 20 can be more effectively reduced or suppressed.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the configurations of the illustrated embodiments, and various changes and modifications can be made within the scope of the claims. is there. For example, the disk device and the manufacturing method thereof according to the present invention can be applied to a disk device including a storage disk other than a magnetic disk such as an optical disk and a magneto-optical disk. Further, even for a disk device having, for example, a direct-acting actuator that does not have a suspension arm, a thin film member that covers a desired contour portion of the actuator and is fixed to the surface of the actuator is adopted as an air flow adjusting mechanism. Thereby, the influence of the air flow on the actuator can be effectively suppressed. Further, not only the through holes, but also various contours of the actuator, such as notches and steps, which tend to make the airflow turbulent, can be covered with the thin film member.

Further, the air flow adjusting mechanism in the present invention has a surface for reducing the vibration impact force between the casing and the storage disk by reducing the vibration or the peak value of the impact generated by the impact force applied to the casing of the disk device. Further provisions can be made. In addition, the air flow adjustment mechanism is an antistatic function for the disk device, a bias adjustment function,
At least one of the electromagnetic interference noise shield function and the radio frequency interference shield function can be further included.

[0042]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a 3.5 inch type hard disk drive having the basic structure shown in FIG.
Actuator 20 when rotated at 000 rpm
The vibration of the uppermost suspension arm 26 in the vertical direction (the axial direction of the shaft 28) is caused by the structure of the present invention in which the thin film member 38 is attached to the upper surface of each suspension arm 26 (FIG. 7), and the thin film member 38 is attached. For each with no conventional structure, measured with a laser displacement meter. As a result, in the conventional structure, vibration of 46.83 μm in vertical direction amplitude was generated in the uppermost suspension arm 26, whereas in the structure of the present invention, this vibration amplitude was 15.47 μm.
It was suppressed to m.

[0043]

As is apparent from the above description, according to the present invention, in a disk device for writing and reading data to and from a storage disk, an airflow that accompanies the storage disk rotating at high speed and is generated around the storage disk. The air flow adjustment mechanism with excellent reliability that can effectively suppress the influence of vibration etc. that the air flow has on the actuator by adjusting the
It becomes cheaper and easier to equip.

Particularly, in a disk device provided with a suspension arm capable of pivoting on a support shaft extending along the recording surface of a storage disk, this is caused by a through hole or a notch provided in the suspension arm in order to reduce the moment of inertia. It is possible to directly prevent turbulence of the air flow.

[Brief description of drawings]

FIG. 1 is a perspective view showing a disk device according to an embodiment of the present invention with a cover of a casing removed.

FIG. 2 is an exploded plan view showing an actuator and a thin film member in the disk device shown in FIG.

3 is an enlarged perspective view showing the thin film member of FIG. 2. FIG.

FIG. 4 is a diagram illustrating a method of manufacturing a disk device according to an embodiment of the present invention, in which (a) before contraction of a thin film member and (b).
It is a top view which shows each state after contraction of a thin film member.

5 is a partially enlarged side view of an actuator in which the thin film member of FIG. 3 is fixed in place.

FIG. 6 is an enlarged perspective view of a thin film member according to another embodiment of the present invention.

7 is a partial enlarged side view of an actuator in which the thin film member of FIG. 6 is fixed in place.

FIG. 8 is an enlarged perspective view of a thin film member according to a modification.

FIG. 9 is an enlarged perspective view of a thin film member according to another modification.

10A to 10E are all enlarged cross-sectional views of a thin film member according to another modification.

[Explanation of symbols] 12 ... Casing 14 ... Drive shaft 16 ... Storage disk 18 ... Head 20 ... Actuator 26 ... Suspension arm 34 ... Through hole 36, 38 ... Thin film member 40 ... Resin film layer 42 ... Adhesive layer

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) G11B 33/14 G11B 33/14 E (72) Inventor Ikuko Kawamoto 3-8-8 Minamihashimoto, Sagamihara City, Kanagawa Sumitomo 3M Co., Ltd. Inner F term (reference) 5D059 AA01 BA01 CA14 CA21 DA11 DA33 DA36 DA37 EA12

Claims (10)

[Claims] 1. A rotatable storage disk having a recording surface, a head portion supported in a state of being opposed to the recording surface of the storage disk, and a track following operation of the head portion with respect to the recording surface. An actuator and an airflow adjusting mechanism that adjusts an airflow that accompanies the rotating storage disk and is generated around the storage disk, wherein the airflow adjusting mechanism covers a desired contour portion of the actuator to cover the actuator. A disk device, comprising a thin film member fixed to the surface of the disk, the thin film member stabilizing the air flow along the contour portion. 2. The suspension includes a suspension arm that is rotatable along a support shaft and extends along the recording surface of the storage disk, and the thin film member covers the contour portion of the suspension arm. The disk device according to claim 1, which is fixed to the surface of the arm. 3. The disk device according to claim 2, wherein a through hole is formed in the contour portion of the suspension arm, and the thin film member shields the through hole. 4. The thin film member has a tubular heat-shrinkable resin film layer, and is fixed to the surface of the actuator by the heat-shrinking action of the heat-shrinkable resin film layer. 2. The disk device according to item 1. 5. The thin film member has a resin film layer and a pressure-sensitive adhesive layer attached to one surface of the resin film layer,
The disk device according to claim 1, wherein the disk device is fixed to the surface of the actuator via the adhesive layer. 6. The thin-film member has a resin damping layer that reduces vibration and shock of the actuator.
6. The disk device according to any one of 5 to 5. 7. The surface for reducing the vibration impact force between the casing and the storage disk by reducing the peak value of vibration or impact generated by the impact force applied to the casing of the disk device by the air flow adjusting mechanism. The disk device according to any one of claims 1 to 6, further comprising: 8. The air flow adjusting mechanism further has at least one of an antistatic function, a bias adjusting function, an electromagnetic interference noise shielding function, and a radio frequency interference shielding function for the disk device. 2. The disk device according to item 1. 9. A method of manufacturing a disk device having an airflow adjusting mechanism for adjusting an airflow generated around a rotating storage disk, wherein an actuator for supporting a head portion so as to be able to be arranged facing a recording surface of the storage disk is prepared. Then, a heat-shrinkable thin film member having a size and a shape capable of covering a desired contour portion of the actuator after heat shrinking is prepared, and the thin film member is arranged at a position for covering the contour portion of the actuator, A method of manufacturing, wherein the thin film member is heated and contracted to fix the thin film member to the surface of the actuator while covering the contour portion of the actuator. 10. A thin film member incorporated in the disk device according to claim 1 as the air flow adjusting mechanism.