JP2002313041A - Head supporting device, magnetic head device and magnetic recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a head supporting device capable of easily pressurizing a flexible body from the side of a load beam and capable of easily adjusting a static posture angle. SOLUTION: The flexible body 12 has its one end fixed to the load beam 11 and the other end extended to the side of the free end 116 of the load beam 11. The load beam 11 has a part for fixing the flexible body 12 and opening parts 113 and 115 between with the free end 16. The opening parts 113 and 115 open on the surface of the flexible body 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head support device, a magnetic head device, and a magnetic recording / reproducing device used in a floating magnetic recording / reproducing system.

[0002]

2. Description of the Related Art In a head supporting device used for a floating type magnetic head device, further lowering of the flying height has been promoted in order to achieve high-density recording and reproduction. It is necessary to adjust the attitude angle with higher accuracy. The stationary posture angle includes a pitch angle and a roll angle.

[0003] As a method of adjusting the static attitude angle, a pressing jig such as a correction pin is applied to a flexible body attached to the load beam, and the flexible body is bent by mechanical pressing by the pressing jig.
A method for adjusting the stationary posture angle is known. In order to perform this static posture angle adjustment method effectively,
It is preferable that the flexible body can be pressed from the load beam side.

However, in the conventional head supporting device,
Since most of the surface of the flexible body attached to the load beam (load beam attachment surface) is shielded by the load beam, the pressing jig cannot be applied to the flexible body from the load beam side. However, the flexible body cannot be pressed from the load beam side. For this reason, the flexible body cannot be bent effectively,
Adjustment of the static attitude angle becomes difficult.

Further, in the conventional head supporting device,
Since the suitable pressing points on the load beam mounting surface of the flexible body are also shielded by the load beam, the available pressing points of the pressing jig on the load beam mounting surface of the flexible body are provided for each head support device. Must be pressed at an inappropriate pressing point. For this reason, the flexible body cannot be bent effectively, and it is difficult to adjust the stationary posture angle. Moreover, with the miniaturization of the head support device, it is becoming difficult to find the applicable pressing point of the pressing jig on the load beam mounting surface of the flexible body.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a head support device, a magnetic head device, and a magnetic recording / reproducing device capable of easily adjusting a static attitude angle.

Another object of the present invention is to provide a head support device, a magnetic head device, and a magnetic recording / reproducing device capable of easily adjusting a static attitude angle by pressing a flexible body from a load beam side. It is.

[0008]

In order to solve the above-mentioned problems, a head support device according to the present invention includes a load beam and a flexible body. One end of the load beam is a free end. The flexible body has one end fixed to the load beam and the other end extending toward the free end of the load beam.

The load beam has at least one opening between a portion for fixing the flexible body and the free end, and the opening is opened on a surface of the flexible body.

In the above-described head support device according to the present invention, the flexible body has one end fixed to the load beam and the other end extending to the free end of the load beam. By bending the flexible body, the stationary posture angle of the magnetic head attached to the flexible body can be adjusted.

In addition, since the load beam has an opening that opens on the surface of the flexible body, the pressing jig is applied to the flexible body by inserting the pressing jig into the opening of the load beam. The flexible body can be pressed from the load beam side. Therefore, the bending adjustment of the flexible body can be easily and effectively performed, and the static attitude angle such as the pitch angle or the roll angle can be easily and effectively adjusted.

Specifically, the opening of the load beam includes a first opening that opens on the surface of the head mounting portion of the flexible body. According to this configuration, through the first opening,
By inserting the pressing jig, the pressing jig can be applied to the head mounting portion of the flexible body, and the head mounting portion can be pressed from the load beam side. Therefore, it is possible to easily and effectively adjust the stationary attitude angle such as the pitch angle or the roll angle by bending the head mounting portion.

Further, in the head support device of the present invention,
The opening of the load beam may include a second opening that opens on a region where bending of the flexible body occurs. According to this configuration, it is possible to bend the flexible body and irradiate the laser to the area where the bending of the flexible body occurs, through the second opening of the load beam. Therefore, the stress in the area where the flexible body is bent can be released by laser irradiation, and the static attitude angle such as the pitch angle or the roll angle can be maintained at a stable value.

Other objects, configurations and effects of the present invention will be described in detail with reference to the accompanying drawings which are embodiments.

[0015]

FIG. 1 is a perspective view of a head support device according to the present invention, FIG. 2 is a partially enlarged perspective view of FIG. 1, and FIG.
FIG. 3 is a sectional view taken along line 3-3 of FIG. As shown, the head support device according to the present invention includes a load beam 11 and a flexible body 12.

The load beam 11 has an elongated shape.
One end of the load beam 11 is a free end 116 and the other end is a mounting portion (fixed end) 117 for the positioning device. The mounting portion 117 of the load beam 11 is provided with a hole 112 for mounting to a positioning device. The load beam 11 has a protrusion 111 near the free end 116 of the longitudinal axis L passing through the center (see FIG. 3). Further, the load beam 11 is provided with bent portions 118 on both sides in the width direction, and the bent portions 118 increase rigidity. However, the load beam 11 can have various structures and shapes, and is not limited to the illustrated embodiment.

FIG. 4 is a perspective view of a flexible member included in the head support device shown in FIGS. Referring to FIG. 4, the flexible body 12 is formed of a thin spring plate material, and has a substantially flat shape. Referring to FIGS. 2 and 3, the flexible body 12
One end is fixed to the portion 119 of the load beam 11, and the other end extends toward the free end 116 of the load beam 11. The illustrated flexible body 12 is fixed to the load beam 11 by spot welding, but may be fixed by caulking or the like. In FIG. 4, the portion of the flexible body 12 fixed to the load beam 11 is indicated by reference numeral 129.

Referring to FIG. 4 again, the flexible body 12 has a head mounting portion 120 and a frame portion. Head mounting part 1
Reference numeral 20 denotes a tongue shape, one end of which is fixed inside the frame portion. Specifically, the frame of the flexible body 12 is
And outer frame portions 123 and 124, and the horizontal frame portion 12
1 has both ends connected to the outer frame portions 123 and 124. One end of the tongue-shaped head mounting portion 120 is fixed to the horizontal frame portion 121, and a groove 122 is formed between the outer frame portions 123 and 124 and the head mounting portion 120.

The flexible body 12 is attached to the surface of the load beam 11 on the side having the projection 111, and the head attachment 1
20 receives a load from the projection 111 of the load beam 11. In the region 126 of the head mounting portion 120, the protrusion 1
11 are in contact with each other (see FIG. 3).
The head mounting portion 120 has two degrees of freedom around two orthogonal axes, that is, two degrees of freedom of pitch and roll.

An important feature of the present invention is that, as shown in FIGS. 2 and 3, the load beam 11 has openings 113 and 11 between a portion 119 for fixing the flexible body 12 and a free end 116.
5 is provided. The openings 113 and 115 of the load beam 11 are provided so as to open on the surface of the flexible body 12 in a state where the flexible body 12 is fixed to the load beam 11.

In the illustrated embodiment, the load beam 11 has two openings 113 and 115 between the portion 119 for fixing the flexible body 12 and the free end 116, but the number of openings is arbitrary. It is. For example, unlike the illustrated embodiment, 1
Only one opening may be provided, or three or more openings may be provided. In the illustrated embodiment, a plurality of openings 1 are provided.
Although 13 and 115 are provided independently of each other, unlike the illustrated embodiment, a plurality of openings may be provided continuously with each other.

In the illustrated embodiment, the openings 113 and 115 of the load beam 11
11 is a hole penetrating from the surface having 11 to the surface opposite to the protrusion 111. Unlike the illustrated embodiment, the opening of the load beam may be formed by a notch or the like provided in the load beam.

In the illustrated embodiment, the openings 113, 11
5 includes a first opening 113 and a second opening 115. The first opening 113 is provided so as to open to a head mounting portion 120 provided on the flexible body 12.

The second opening 115 is provided so as to open above the area A 1 of the flexible body 12. The area A1 of the flexible body 12 may be an area where bending occurs. Referring to FIG. 4, the area A1 of the flexible body 12 is
Appears between the portion 129 fixed to the head mounting portion 120 and the head 129.

In the above-described head support device, it is necessary to adjust the stationary attitude angle in order to obtain an appropriate flying characteristic. The stationary posture angle includes a pitch angle θ1 and a roll angle. The pitch angle θ1 is an angle intersecting with a reference line taken in the direction of the longitudinal axis L (see FIGS. 1 and 2) of the load beam 11, and the roll angle is an angle taken around the longitudinal axis L. It is. The stationary attitude angle changes variously under the influence of the assembled state of the magnetic head with respect to the head support device, the bending of the head support device, and the load due to wiring.

As shown in FIG. 2 and FIG.
Has one end fixed to the portion 119 of the load beam 11,
The other end extends toward the free end 116 of the load beam 11. By bending the flexible body 12, the static attitude angle of the magnetic head attached to the flexible body 12 can be adjusted.

FIG. 5 is a perspective view showing a method of adjusting a stationary posture angle.
FIG. 6 is a partial sectional view taken along line 6-6 in FIG. In the present invention, since the load beam 11 includes the first opening 113 that opens on the surface of the flexible member 12, the first opening 113 of the load beam 11 is provided as shown in FIGS. By inserting the pressing jigs 41 and 42 into the 113, the flexible body 12 can be pressed from the load beam 11 side. Therefore, the bending adjustment of the flexible body 12 can be easily and effectively performed, and the static posture angle such as the pitch angle or the roll angle can be easily and effectively adjusted.

FIGS. 5 and 6 show the case where the pitch angle θ1 is adjusted as the stationary posture angle. 5 and 6, the pressing jigs 41 and 42 are inserted into the first opening 113 of the load beam 11, and the pressing jigs 41 are inserted into the pressing points P1 and P2 of the flexible body 12 on the load beam 11 side. , 42 are applied, and the pressing jigs 41, 42 apply a load F1 to the pressing points P1, P2. By this pressing operation, the flexible body 12 is bent, and the pitch angle θ1 is easily and effectively adjusted.

Next, FIG. 7 shows a case where the roll angle is adjusted as the stationary posture angle. However, FIG. 7 is a view corresponding to a partial cross-sectional view along line 7-7 in FIG. Referring to FIG. 7, the pressing jig 41 is inserted into the first opening 113, and the pressing jig 41 applies a load F1 to the pressing point P1 on the load beam 11 side of the flexible body 12 and simultaneously presses the pressing jig 41. Jig 4
4, a load F2 is applied to the pressing point P4 on the opposite side to the load beam 11 side. By this pressing operation, the flexible body 12 is twisted and bent, and the roll angle is easily and effectively adjusted. In the pressing operation of FIG. 7, the roll angle is
Corrected in the R1 direction.

FIG. 8 is a perspective view showing a method of irradiating a laser to an area where bending of the flexible body occurs, and FIG. 9 is a partial cross-sectional view along line 9-9 in FIG. In the figure, reference numeral 5
Reference numeral 1 denotes a laser irradiation device for irradiating the laser LA. The laser irradiation device 51 is directed to the head support shown in FIGS.

Referring to FIGS. 8 and 9, the flexible body 12 is bent, and a bending is generated in the area A1. In the figure, the pressing jigs 45, 4
6, the load F1 is applied to the pressing points P5 and P6 of the flexible body 12.

In the illustrated embodiment, the openings 113 and 115 of the load beam 11 include a second opening 113 that opens on the area A1 where the flexible body 12 bends.
According to this configuration, the flexible body 12 is bent, and as shown in FIGS. 8 and 9, the second opening 115 of the load beam 11 is formed.
Through the laser LA to the area A1 where bending of the flexible body occurs.
Can be irradiated. Therefore, the stress in the area A1 where the bending of the flexible body 12 occurs can be released by the irradiation of the laser LA, and the stationary attitude angle such as the pitch angle θ1 or the roll angle can be stably maintained.

FIGS. 8 and 9 illustrate the case where the bending of the pitch angle adjustment is applied to the flexible body 12. However, unlike FIG. Similarly, a laser beam may be applied to the area where the bending has occurred.

FIG. 10 is a sectional view of a magnetic head device according to the present invention. FIG. 10 corresponds to the cross-sectional view shown in FIG. Referring to FIG. 10, the magnetic head device according to the present invention includes a head support device 1 and a magnetic head 2.
The illustrated magnetic head device has a head. Gimbal assembly (He
ad Gimbal Assembly (hereinafter referred to as HGA). The head support device 1 is shown in FIGS.
The magnetic head 2 is mounted on a head mounting portion 120 of the flexible body 12 provided in the head support device 1.

The above-described magnetic head device can obtain the same functions and effects as those of the head support device shown in FIGS.

The present invention is applicable to the above-described HGA,
head. Head Arm Assembly (hereinafter HA)
A) and a head in which a plurality of HAAs are stacked. Stack Assembly (HS)
A) is also applicable.

FIG. 11 is a plan view of a magnetic recording / reproducing apparatus according to the present invention. The illustrated magnetic recording / reproducing apparatus includes a magnetic head device 71 and a magnetic disk 72. The magnetic head device 71 is as shown in FIG. The magnetic head device 71 is configured such that one end of the head support device 1 is positioned at the positioning device 73.
Supported and driven by The magnetic head 2 of the magnetic head device 71 is supported by the head support device 1 and is arranged so as to face the magnetic recording surface of the magnetic disk 72.

When the magnetic disk 72 is driven to rotate in the direction of arrow U1 by a driving device (not shown), the magnetic head 2 flies above the surface of the magnetic disk 72 with a small flying height. The driving method is rotary. An actuator system is generally used, but a linear actuator system may be adopted. FIG. This shows an actuator system, in which the magnetic head 2 attached to the tip of the head support device 1 is mounted on the magnetic disk 72 in the radial direction C1, C2.
Is driven. Then, the magnetic head 2 is positioned at a predetermined track position on the magnetic disk 72 by the positioning device 73 that rotationally drives the head support device 1.

Although the present invention has been described in detail with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teaching of the present invention. It is self-evident.

[0040]

As described above, according to the present invention, the following effects can be obtained. (A) a head support device capable of easily adjusting a static attitude angle,
A magnetic head device and a magnetic recording / reproducing device can be provided. (B) It is possible to provide a head support device, a magnetic head device, and a magnetic recording / reproducing device capable of easily adjusting a static attitude angle by pressing a flexible body from a load beam side.

[Brief description of the drawings]

FIG. 1 is a perspective view of a head support device according to the present invention.

FIG. 2 is a partially enlarged perspective view of FIG.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a perspective view of a flexible body included in the head support device shown in FIGS.

FIG. 5 is a perspective view showing a static attitude angle adjustment method applied to the head support device shown in FIGS.

FIG. 6 is a partial sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is a diagram showing a case where a roll angle is adjusted as a stationary posture angle.

FIG. 8 is a perspective view showing a method of irradiating a laser to an area where bending of a flexible body occurs.

FIG. 9 is a sectional view taken along line 9-9 in FIG. 8;

FIG. 10 is a sectional view of a magnetic head device according to the present invention.

FIG. 11 is a plan view of a magnetic recording / reproducing apparatus according to the present invention.

[Explanation of symbols]

 11 Load beam 12 Flexible body 113,115 Opening

Continued on the front page F term (reference) 5D059 AA01 BA01 CA16 DA17 DA26 EA07

Claims (7)

[Claims] 1. A head support device including a load beam and a flexible body, wherein one end of the load beam is a free end, and one end of the flexible body is fixed to the load beam. The other end extends to the free end side of the load beam, wherein the load beam has at least one opening between a portion for fixing the flexible body and the free end, A head support device wherein a portion opens on a surface of the flexible body. 2. The head support device according to claim 1, wherein the flexible body includes a head mounting portion, the opening includes a first opening, and the first opening. Is a head support device that opens on the surface of the head mounting portion of the flexible body. 3. The head support device according to claim 2, wherein the load beam has a protrusion near the free end, and the flexible body includes the protrusion of the load beam. A head support device attached to a surface on the side having the head, wherein the head attachment portion receives a load from the protrusion. 4. The head support device according to claim 3, wherein the flexible body includes a frame portion, the head attachment portion has a tongue shape, and one end is provided inside the frame portion. A fixed head support device. 5. The head support device according to claim 1, wherein the opening includes a second opening, and the second opening is formed of the flexible member. A head support device that opens over the area where bending occurs. 6. A magnetic head device including a head support device and a magnetic head, wherein the head support device is any one of claims 1 to 5, wherein the magnetic head is A magnetic head device attached to a flexible body. 7. A magnetic recording / reproducing apparatus including a magnetic head device and a magnetic disk, wherein the magnetic head device is as described in claim 6, wherein the magnetic disk is A magnetic recording / reproducing apparatus that performs magnetic recording and reproduction between the devices.