Samsung Electronics Co., Ltd.

Haeng-soo Lee

Yong-kyu Byun

Cheol-soon Kim

Dong-ho Oh

Woo-sung Kim

Young-Hoon Kim

Jeong-seok Koh

Jin-Gyoo Yoo

Leonid Maslov

Seong-woo Kang

A head stack assembly (HAS) of a hard disk drive (HDD) includes a swing arm, a connection plate integral with a terminal end of the swing arm, a head slider including a magnetic head for reading/writing data from/onto a disk, and a suspension that is attached to the connection plate, supports the head slider, and has characteristics which minimize the degree to which the magnetic head will run off-track due to vibrations induced in the HDD. The suspension includes two connecting parts having upper surfaces at which the suspension is attached to the connection plate. In the HDD, the upper surface of the connecting part positioned closest to the center of the disk center lies in a plane beneath the plane in which the upper surface of the other connecting part lies. Also, that half of the suspension which is disposed to one side of the central longitudinal axis of the HSA and is located remotely from the center of the disk in the HDD is stiffer than the other half of the suspension which is proximal the center of the disk. To this end, the suspension includes at least one side-rail that renders the suspension asymmetrical.

Head stack assembly with suspension supporting head slider and hard disc drive including the same

A head stack assembly (HSA) for a hard disk drive (HDD) comprises a swing arm rotatably coupled to a base member of the HDD, a connection plate coupled to an edge part of the swing arm, a head suspension component attached to the connection plate, and a head slider comprising a magnetic read/write head attached to an edge part of the head suspension component.

HDD and HDD stack assembly with head suspension having multiple combination parts and spacer

A suspension assembly of an actuator of a hard disk drive prevents collisions with a data storage disk of the drive. The suspension assembly includes a load beam, a bracket having a rear end at which the bracket is coupled to the load beam and a flexure, a slider that is attached to the bracket and carries the read/write head of the hard disk drive, and a limiting mechanism capable of selectively attaching and detaching a respective portion of the bracket to and from the load beam during operation. The load beam has a dimple projecting toward the bracket and which normally contacts a first surface of the bracket. The slider is attached to a second surface of the bracket opposite the first surface. The limiting mechanism attaches a portion of the bracket bearing the slider to the load beam when the read/write head is unloaded from the disk. Therefore, the wobbling of the slider is suppressed during the unloading operation. On the other hand, the portion of the bracket bearing the slider is detached from the load beam during a read/write operation to allow the slider to pitch and roll more freely about the dimple.

Hard disk drive, suspension assembly of actuator of hard disk drive, and method of operation of hard disk drive

A shipping comb for use when moving an actuator of a hard disk drive, the actuator including a swing arm installed on a base member of the hard disk drive capable of pivoting, at least a pair of load beams coupled to an end portion of the swing arm, and at least a pair of sliders respectively coupled to the load beams to face each other. The shipping comb includes a frame operative to be coupled to the actuator and capable of pivoting, a first finger provided at the frame and for maintaining an interval between the load beams by being inserted between the load beams, and a second finger provided at the frame and for preventing collision between the sliders by being inserted between the sliders.

Shipping comb for moving actuator of hard disk drive

An actuator arm of an actuator assembly includes a 4-bar linkage structure defined by a trapezoidal shaped opening formed between a front end of the actuator arm and a pivot shaft. A first rounded extension portion and a second rounded extension portion are formed at two corners adjacent to the pivot shaft of the opening, respectively, and a third rounded extension portion is formed at two corners adjacent to a front end of the opening, and hinges H, H, Hand Hare formed at the actuator arm by the first, second and third extension portions. Design factors determining a shape of the opening are optimized to meet the following relations for the structure of the 4-bar linkage: W(cos &#x3b2;&#x2212;1)+Z(cos &#x3b1;&#x2212;1)=&#x3b4;=0, W sin &#x3b2;+Z sin &#x3b1;=&#x3b4;=0.

Actuator assembly having optimized 4-bar linkage type actuator arm, hard disk drive employing the same, and method for optimizing shape of opening formed in actuator arm

Provided is an actuator of a disk drive to move a read/write head, for recording and reproducing data, to a predetermined position on a disk. The actuator includes an actuator pivot installed on a base member of the disk drive, a swing arm that is rotatably coupled to the actuator pivot and has a suspension supporting the head at a leading end portion of the swing arm, a coil support portion provided at a rear end portion of the swing arm, a VCM coil coupled to the coil support portion and having four sections having respective particular directions, and magnets arranged to face the VCM coil and having four poles respectively corresponding to the four sections of the VCM coil.

Growing community of inventors

Suwon-si, South Korea

Haeng-soo Lee