JPS60170084A - Magnetic head structure - Google Patents

Abstract

PURPOSE:To reduce an inclination of a floating head slider and to enable satisfactory floating characteristics and high density recording by setting a ski part at the fitting side shorter than the other, among the ski parts at both sides of a floating head slider. CONSTITUTION:A ski part 12 of the fitting side is set shorter than a top ski part 11 among ski parts 11 and 12 at both sides of a floating head slider 1. When the floating head slider 1 rotates in an arrow 22 direction of a magnetic disk 21, it floats at the height where buoyance is balanced with pressure given by a pressure arm 3. However, if two types of length of the ski parts 11 and 12 at both sides are equal, the floating head slider 1 tilts and floats becuase a resultant of the buoyancy acts to outer peripheral side of a magnetic disk (head fitting side) from the center of the slider 1. Since out of the ski parts 11 and 12, the ski part 12 at the fitting side is shorter than the top ski part, an inclination of a floating head slider can be set to an arbitrary value.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a magnetic head structure, and more particularly to a groove path of a floating magnetic head of a magnetic disk drive.

[(艮1) Conventionally, this type of 1! position magnetic head, as shown in FIG. 3, and a leaf spring 5 that applies a bending force to this arm 3.
The mounting part 4 is spot-welded to the spring 2 and the temporary spring 5.

The pressure arm 3 applies the deflection force of the leaf spring 5 to the rad slider 1 through application points J and E to make it float. In addition, FIG. 2 shows a perspective view of the floating RAD slider section shown in FIG. 1 as viewed from the air bearing surface. It is composed of a guide/ride 1 to a gap section 14.

The floating RAD slider uses the principle of air bearing to fly above the magnetic disk at a minute distance, but its flying height varies depending on the relative speed with the magnetic disk and the shape of the floating RAD slider. In the case of a magnetic disk, since the circumferential speed differs depending on the radial position, the flying height is small on the inner circumference side of the disk and large on the outer circumference side. In addition, since the floating Rad slider has a certain width in the disk radial direction, the height of the floating blade received by this slider is shifted from the center of the slider to the head clearance side, that is, to the outer circumference of the disk. . In other words, the floating RAD slider has a small flying height at the tip (inner periphery of the disk) and a large flying height at the head mounting part (outer periphery of the disk), and is floating at an angle.

Therefore, in conventional magnetic heads, as magnetic disks become smaller from the conventional 149.8 mm to the current 59.3 γ, the outer diameter and inner diameter of the floating area of the magnetic disk become smaller. As the ratio increases, the inclination angle of the head slider also increases, making it impossible to obtain stable flying characteristics.

In addition, in the conventional magnetic head, the magnetic gear-up section 14, which reads and writes information from the magnetic disk, is located in the center of the floating Rad slider 1, so if the head slider is tilted up) There is a drawback that the 11-tube portion does not provide the minimum gap, which is disadvantageous for high-density recording.

The present invention has been developed by taking part of the gaps on both sides of the floating Radoslider ('j') by making the gap on one side shorter than the other side. An object of the present invention is to provide a magnetic head having an R4 structure that reduces the inclination of the magnetic head and enables good flying characteristics and high-density recording.

DETAILED DESCRIPTION OF THE INVENTION The structure of the magnetic head according to the present invention is a magnetic head structure having a floating Rad slider whose one end is connected to the tip of a cantilever support spring fixed to the mounting part and is pressed by a pressure arm. Among the gaps on both sides of the floating Radoslider, the length of the gap on the mounting number side is set shorter than the length of the gap on the other tip side.1- Ru.

Koi Takumi Examples will be described below with reference to the drawings.

FIG. 3 is a perspective view of a floating RAD slider of a magnetic head according to an embodiment of the present invention, seen from the air bearing surface, and one end is fixed to the slotted part 4 as shown in FIG. 1. A floating RAD slider 1 is press-fitted to the tip of a gimbal spring 2, and a pressure arm 3 that presses the floating RAD slider 1 at a pressure point 6 and a leaf spring 5 that applies a spring force to this arm are on the right side. The gap portions 12 on the back attachment portion side of the gap portions 11 and 12 on both sides of the floating Radoslider 1 are made shorter than the gap portion 11 at the tip.

When the magnetic disk 21 rotates in the direction of the arrow 22 in FIG. If the lengths of portions 11 and 12 are equal, the resultant force of the floating blade will be applied to the rad slider side, causing it to float tilted.

Therefore, in this example, the length of the gap part 12 on the mounting u part side among both gap parts 11.12 is shorter than the length of the cedar part at the tip, as shown in FIG. The slope of the floating RAD slider can be set to any value.

11th column circle 1 As described above, according to the present invention, in the magnetic head of a magnetic disk drive, the installation of the floating RAD slider at the back of the gaps on both sides is achieved by shortening the length of the gap between the parts. The inclination of the floating RAD slider can be set at an appropriate angle, resulting in good flying characteristics and high-density recording.

[Brief explanation of the drawing]

Fig. 1 shows a perspective view of a general floating magnetic head structure, Fig. 2 is a perspective view of a conventional floating RAD slider seen from the air bearing surface, and Fig. 3 shows an embodiment of the present invention. FIG. 3 is a perspective view of the RADO slider seen from the air bearing surface when the magnetic head is floating. Explanation of symbols of main parts 1...Floating RAD slider 4...Mounting part 11.12...Gap part 14...Magnetic gap Applicant Japan Denki Co., Ltd. Representative Patent Attorney Shin Hieyo

Claims (1)

[Claims] A magnetic head structure in which one end is connected to the tip of a cantilever-type support spring fixed to a section, and the RADO slider is moved to the right by a floating RAD slider that is pressed by a pressurizing arm. The length of the gap on both sides of the floating Radoslider is set to be shorter than the length of the gap on the side of the other end. ” magnetic head structure.