JPH04101962U - Magnetic head support structure - Google Patents

Abstract

(57) [Summary] [Purpose] To simplify and downsize the attachment of a suspension to the fixed arm of a magnetic head support structure, stabilize the resonance characteristics of the suspension, and contribute to cost reduction and miniaturization of magnetic disk drives. [Structure] The suspension (1) (1) is directly fixed by welding on both sides of the fixed arm (3) of the magnetic head support structure without intervening the base plates (4) (4).

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a suspension system that constitutes a magnetic head support structure in a magnetic disk drive. This invention relates to an improvement in the mechanism for attaching a fixed arm to a fixed arm.

0002

[Conventional technology]

FIG. 3 is a plan view showing an embodiment of a main part of a general magnetic disk device. The section (1) carries a slider (7) at its distal end, and its proximal end (2) is a fixed arm. (3), and the slider (7) at the tip of the fixed arm (3) is attached to the shaft (5). The magnetic disk (6) is pivotally supported so as to rotate in an arc around the magnetic disk (6). .

0003 Figure 2 is a side view showing the relative position between a conventional magnetic head support structure and a magnetic disk. However, the magnetic head support structure is attached to the base plate at the base end (2) of the suspension (1). The plate (4) is welded together and then screwed onto the fixed arm (3). It was attached by caulking etc.

0004

[Problem that the idea aims to solve]

According to the conventional magnetic head support structure as described above, the base end of the suspension (1) By welding the base plate (4) to the part (2), the suspension (1) There are small protrusions that occur during welding between the two members of the base plate (4) and the base plate (4). Due to this, a gap is created and the suspension (1) and base plate (4) are integrated. When attached to the fixed arm (3) by screwing or caulking, the base plate (4) and It is inevitable that gaps will occur between the two members of the fixed arm (3), and these gaps will There was a drawback that the addition caused the resonance characteristics of the suspension (1) to become unstable.

[0005] Furthermore, fixing via the base plate (4) complicates the configuration and makes it difficult to assemble. This requires a large amount of man-hours and increases the size in the thickness direction.

That is, as shown in FIG. 2, the distance [T] between the magnetic disks (6) (6) is determined by the thickness of the fixed arm (3) [T ₁ ] and the thickness of the base plate (4) [T ₂ ]. The approximate value is the sum of twice the height [T ₃ ] of the slider (7). However, in recent years, magnetic disk drives have become more and more sophisticated and at the same time are rapidly becoming smaller.

[0007] The purpose of this invention is to improve the suspension of a magnetic head support structure that constitutes a magnetic disk drive. This stabilizes the resonance characteristics of the section (1) and simplifies the means of attachment to the fixed arm (3). At the same time, the distance between the magnetic disks (6) (6) is reduced, and the distance between the magnetic disks (6) (6) is reduced. The goal is to contribute to the miniaturization of disk devices.

[0008]

[Means to solve the problem]

The present invention is a suspension system made of thin plate material with a magnetic head slider (7) fixed to one end. In the case where the proximal end (2) of the ring (1) is fixed to the metal fixing arm (3), the front The suspension (1) and the fixed arm (3) are made of a material that can be welded to each other, This magnetic head support structure is characterized in that both parts are attached by direct welding.

[0009]

[Effect]

This invention connects the suspension directly to the fixed arm without intervening a base plate. Attach directly.

0010

【Example】

If one embodiment of the present invention is explained with reference to FIG. 1, (1) (1) is a stainless steel support. The suspension carries the slider (7) on the outside of the distal end, and the base end of the suspension Part (2) (2) is attached to both sides of the stainless steel fixed arm (3), and the fixed arm The arm (3) and the suspension base end (2) (2) are fixed together by laser welding. It is. Therefore, the generation between the suspension (1) and the fixed arm (3) The gaps caused by the leakage should be kept to a minimum.

[0011] As mentioned above, both the suspension (1) (1) and the fixed arm (3) are made of different materials. The stainless steel was selected so that both materials can be welded. For example, combinations of materials that meet the above requirements, such as carbon steel and stainless steel. If so, it is not limited to stainless steel.

[0012] Furthermore, the interval [T0] between the magnetic disks (6) (6) according to the present invention is approximately equal to the sum of the plate thickness [ _T4 ] of the fixed arm (3) and twice the slider height [ _T3 ]. However, since the fixed arm (3) does not require a screw hole to attach a conventional suspension, the plate thickness [T ₄ ] of the fixed arm (3) is the same as the plate thickness [T ₁ ] of the conventional fixed arm. The spacing [T ₀ ] between the magnetic disks (6) (6) is the same as the conventional [T] because the thickness is only about 1/2 and the thickness twice the plate thickness [T ₂ ] of the base plate (4) is not added. This can be significantly reduced compared to the previous year.

[0013] In addition, conventionally there is a base plate between the fixed arm (3) and the suspension (1). (4) was used to improve assembly accuracy by combining two parts. However, in this invention, we took into account the ease of positioning due to the recent miniaturization of parts. , with the improvement of assembly technology, there is no need for a special intervening function of the base plate. , and other properties are significantly improved.

[0014]

[Effect of the idea]

According to the present invention, there is no need to insert a base plate in the magnetic head support structure. The gap between the structures is reduced, which stabilizes the resonance characteristics of the suspension and also improves the stability of the suspension. Because we were able to reduce the thickness of the arm, we were able to significantly shorten the distance between the magnetic disks. , it can contribute to the miniaturization of magnetic disk devices. In addition, parts are simplified and assembly man-hours are reduced. Therefore, it is possible to create an inexpensive magnetic head support structure with excellent suspension support characteristics. supply is now possible.

[Brief explanation of drawings]

FIG. 1 is a side view showing the relative position of a magnetic head support structure of the present invention and a magnetic disk.

FIG. 2 is a side view showing the relative position between a conventional magnetic head support structure and a magnetic disk.

FIG. 3 is a plan view showing the relative position of a magnetic head support structure and a magnetic disk of a general magnetic disk device.

[Explanation of symbols]

1 Suspension 2 Suspension base end 3 Fixed arm 6 Magnetic disk 7 Magnetic head slider

Claims (1)

[Scope of utility model registration request] 1. In a system in which a base end of a thin plate suspension having a magnetic head slider fixed to one end is fixed to a metal fixed arm, the suspension and the fixed arm are made of a material that can be welded to each other. A magnetic head support structure characterized in that it is attached by direct welding.