Nhk Spring Co., Ltd.

Other

Kazuhiko Otake

Takeshi Kamisaku

Hitoshi Suzuki

Akihiko Aoyagi

Yasuji Takagi

Ichiro Takadera

Akihiro Takei

Yoichi Ikeji

A manufacturing method for a magnetic head supporting suspension includes forming a load beam blank having a load beam with a dimple formed therein, and a frame portion with a positioning part formed therein; and forming a flexure blank having a flexure and a frame portion. A fitting portion in the flexure blank is fittable to the positioning part. An anti-rotation portion is formed on the load beam blank or a member attached to the load beam blank. A receiving portion in the flexure blank is fittable to the anti-rotation portion. The load beam blank and flexure blank are superposed with the positioning part fitted to the fitting portion. The anti-rotation portion is fitted to the receiving portion, and the flexure is fixed to the load beam. The load beam and flexure are thereafter separated from the frame portions.

Manufacturing method for a magnetic head supporting suspension

A base plate of a suspension for a disk drive includes a shear surface formed on one end of the base plate and a notch formed along the shear surface so as to contain the shear surface. The notch is formed on each of the obverse and reverse sides of the base plate. The notches are designed so that (&agr;&plus;&bgr;)/t ranges from 0.3 to 0.5 it the respective depths of the two notches and the thickness of the base plate are &agr;, &bgr; and t, respectively.

Base plate for a suspension of a disk drive fixed to a load beam having a notch for reducing the size of a burr

There is disclosed a disc drive suspension in which a first reference hole and spring portion, and a second reference hole and spring portion are formed in a load beam of the suspension. A third reference hole and spring portion, and a fourth reference hole and spring portion are formed in a flexure. When a first positioning pin of a positioning jig is inserted into the first and third reference holes, the first and third spring portions abut on the first positioning pin, and the load beam and flexure are thereby urged in an axial direction. When a second positioning pin is inserted into the second and fourth reference holes, the second and fourth spring portions abut on the second positioning pin, and the load beam and flexure are thereby urged in the axial direction, and are both positioned.

Suspension for disc drive

A loading/unloading lug is provided on the distal end portion of a load beam for use as a suspension body. The lug extends in the axial direction of the suspension body and is designed to run on a support member when suspension body is moved to a refuge zone. The cross section of the lug perpendicular to the axis of the suspension body is arcuate so that an outer surface in contact with the support member is convex, and the outer surface of the lug forms a smoothed surface smoothed by coining. The arithmetic mean roughness of the smoothed surface ranges from 0.01 &mgr;m to less than 0.2 &mgr;m.

Growing community of inventors

Atsugi, Japan

Kazuhiko Otake