JPH0235676A - Magnetic head slider supporting device - Google Patents

Abstract

PURPOSE:To heighten rigidity in a lateral direction and to realize a fast seek operation by forming the shape of the tip part of a load beam in annular shape, and arranging a flexible gimbal part at right angles to the axial line of the tip part. CONSTITUTION:The title device is provided with a mount 1 to be mounted on a head arm, and the load beam 2 provided with a beam part 9 having a rear end part placed and fixed on the mount 1 and a projecting edge whose both sides are bent at right angles, a pressure spring part 3 provided between the rear end part and the beam part 9, and an annular part 4 formed in the annular shape of anti-isosceles triangle provided at the tip part of the beam part 9. Also, the device is provided with two parallel outer fingers 6a and 6b, and a central finger 7 provided between the two parallel outer fingers 6a and 6b is parallel and to load a head slider, and the flexible gimbal part 5 fixed at the right angles to the axial line of the load beam is provided on the bottom of the annular part 4. In such a way, it is possible to improve insufficient rigidity in the lateral direction and to realize the fast seek operation in an in-line type rotary seek system.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a support device for a magnetic head slider that reads or writes information to a rotating disk medium.

[Conventional technology]

A magnetic head slider (head slider) that reads or writes information to a rigid or flexible rotating disc-shaped magnetic recording medium (disk medium) follows the irregularities on the surface of the disk medium. It is necessary to quickly and accurately position the designated track on the disk medium. Therefore, such a head slider support device must be able to press the head slider against the disk medium with an appropriate load, be flexible enough to follow the movement of the surface of the disk medium, and be flexible enough to follow the movement of the surface of the disk medium. It is required to have high rigidity in the parallel direction.

On the other hand, as a method for positioning the head slider on a predetermined track, there is a rotary seek method in which the head slider rotates in a circular arc. A device in which the magnetic disks are aligned in parallel (generally referred to as an in-line rotary seek method) is widely used because it is effective in downsizing magnetic disk devices. FIGS. 3(a) and 3(b) are a plan view and a front view showing an example of such a conventional magnetic head slider support device. The example in FIG. 3 includes a mount 60 for attaching to a head arm (not shown), a rear end fixed on the mount 60, and projecting edges 17a and 17b with both sides bent at right angles.
a beam section 16 having the above-mentioned rear end section and beam section 1;
In this structure, a flexible gimbal section 30 on which a head slider is mounted is connected to the tip of a load beam 10 having a pressure spring section 20 between 6 and 6. The visibility gimbal section 30 is located between two outer fingers 32a and 32b parallel to the longitudinal direction of the load beam 10, and has one free end, and is a central finger for attaching a head slider (not shown). 36. As described above, since the conventional magnetic head slider support device has a cantilever structure, the load beam 10
Although it has rigidity in the longitudinal direction, it has poor rigidity in the direction perpendicular to the longitudinal direction (lateral direction). For this reason, when used in an in-line rotary seek method in which the longitudinal direction of the support device is aligned with the longitudinal direction of the head slider, there is a drawback that high-speed seek operation cannot be performed due to insufficient lateral rigidity. have.

[Problem to be solved by the invention]

The problem to be solved by the present invention is to eliminate the lack of lateral rigidity in the conventional magnetic head slider support device as described above. In other words, an object of the present invention is to provide a magnetic head slider support device that improves the lack of lateral rigidity in conventional magnetic head slider support devices and can realize high-speed seek operations in an in-line rotary seek system. It's about doing.

[Means to solve the problem]

A magnetic head slider support device according to the present invention includes a mount attached to a head arm, a rear end portion placed on the mount and fixed thereto, a beam portion having a protruding edge with both sides bent at right angles, and the rear end portion. a load beam having a pressure spring section provided between the beam section and the beam section; an annular annular section in the shape of an inverted isosceles triangle provided at the tip of the beam section; two parallel outer fingers; a central finger provided parallel to the outer fingers and mounting a head slider; ing.

(Example〕 Next, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1(a) and 1(b) are a plan view and a front view showing an embodiment of the present invention.

As shown in FIG. 1, this embodiment includes a mount 1 for mounting on a helad arm (not shown), and a load beam having a rear end placed on this mount 1 and fixed by means such as welding. 2. The load beam 2 is formed into a cylindrical shape so that the portion near the mount 1 serves as the pressure spring portion 3, and the beam portion 9 beyond that has projecting edges 9a and 9b with both sides bent at right angles. ing. In addition, the end of the load beam 2 opposite to the mount 1 forms a substantially inverted triangular annular part 4, and a flexible gimbal part 5 is welded to the bottom part at the tip of the annular part 4 in parallel with the bottom part. installed by. The flexible gimbal section 5 has two parallel outer fingers 6a and 6b and a central finger 7 provided in parallel therebetween, and the central finger 7 has a protrusion approximately at its center. 8 is formed. A head slider (not shown) is fixed to the center finger 7. This protrusion 8 transmits pressing force by contacting the annular portion 4 at the tip of the load beam 2, and serves as the center of rotation when the head slider rotates about an axis parallel to the surface of the disk medium.

FIG. 2 is a plan view showing a state in which the above-described head slider support device is used in an in-line rotary seek type magnetic disk device.

As shown in FIG. 2, in the in-line rotary seek method, the center of the rotating shaft 65 of the actuator (not shown) and the center lines of the head arm 62, the magnetic head slider support device 11, and the head slider 40 are almost in a straight line. It is located in

When the head slider 40 seeks (positioning operation) on the disk medium 50, the head slider 40 moves in a circular arc centered on the rotation axis 65 of the actuator (arrow A). Therefore, a force in the theta direction A is applied to the tip end portions of the head slider 40 and the magnetic head slider support device 11. This force in the theta direction A induces vibrations in the mechanical system of the head slider and the magnetic head slider support device. However, in this embodiment, since the tip of the load beam 2 is an annular annular portion 4, the rigidity in the theta direction A is high, so that it can withstand it. As described above, this embodiment is suitable for use in an in-line rotary seek type magnetic disk device, and can realize high-speed seek operations in this type.

〔Effect of the invention〕

As described above, in the magnetic head slider support device of the present invention, the tip of the load beam is annular, and the visibility gimbal section 7 is disposed perpendicular to its axis, thereby increasing the lateral rigidity. This has the effect that it is possible to increase the speed of the seek operation, and that it is possible to realize a high-speed seek operation in an in-line rotary theta type magnetic disk device.

[Brief explanation of the drawing]

FIGS. 1(a) and (b) are a plan view and a front view showing an embodiment of the present invention, FIG. 2 is a plan view showing an example in which the embodiment of FIG. 1 is used in an in-line rotary type, FIGS. 3(a) and 3(b) are a plan view and a front view showing an example of a conventional magnetic head slider. 1.60... Mount, 2.10... Load beam, 3.20... Pressure spring part, 4... Annular part, 5.3
O...Visibility gimbal part, 6a, 6b, 32a, 32
b...outer finger, 7.36...center finger,
8...Protrusion, 9.16...Beam part, 9a/9b1
7a/17b...projection, 40...head slider,
50... Disk medium, 62... Head arm, 6
5.Rotation axis.

Claims (1)

[Claims] A mount to be attached to the head arm, a rear end portion placed and fixed on the mount, a beam portion having a protruding edge with both sides bent at right angles, and a modification provided between the rear end portion and the beam portion. a load beam having a pressure spring portion and an annular portion in the shape of an inverted isosceles triangle provided at the tip of the beam portion;
the load beam is fixed to the bottom of the annular portion at right angles to the axis; 1. A support device for a magnetic head slider, comprising: a flexible gimbal section.