Fujitsu Corporation

Koichiro Ohba

Kenichi Myokan

Toshiyuki Hachiya

Takayuki Bitoh

Hideaki Kamezawa

A carriage arm and a hard disk drive unit including the carriage arm, where the carriage arm includes a head slider mounting part and a voice coil attachment part integrally formed with each other by a metal plate being press punched so that the head slider mounting part and the voice coil attachment part are arranged opposite to each other with respect to a rotational axis of the carriage arm. Additionally, the head slider mounting part defines a first plane and the voice coil attachment part defines a second plane that is different from the first plane, and where the head slider mounting part and the voice coil attachment part are connected to each other by a bent portion.

Hard disk drive unit having a reduced size and cost

A formed wire for an actuator including a frame having a first opening formed at one end portion, a second opening formed at another end portion, a slit formed between the first opening and the second opening, and a plurality of positioning holes. A wire bundle formed by twisting a plurality of wires is inserted through the slit and thereby held by the frame. The wire bundle has a first end portion exposed to the first opening and a second end portion exposed to the second opening. The wires at the first end portion are separated from each other and bonded by adhesion to a first frame edge defining the first opening, and the wires at the second end portion are separated from each other and bonded by adhesion to a second frame edge defining the second opening.

Formed wire for actuator

An actuator arm assembly includes an actuator arm rotatably mounted on a base and having a first surface and a second surface, a first suspension fixed at a base end portion thereof to the first surface of the actuator arm at a front end portion thereof, a first head mounted on a front end portion of the first suspension, a second suspension fixed at a base end portion thereof to the second surface of the actuator arm at the front end portion thereof, and a second head mounted on a front end portion of the second suspension. The actuator arm assembly further includes a first lead wire bundle connected to the first head, a second lead wire bundle connected to the second head, and a projection formed integrally with the actuator arm so as to project from a side surface of the actuator arm in a direction substantially parallel to the first and second surfaces. The first and second lead wire bundles are juxtaposed in the direction substantially parallel to the first and second surfaces.

Growing community of inventors

Kawasaki, Japan

Koichiro Ohba