Invention Grant
- Patent Title: Baseplate for disk drive suspension and method for manufacturing baseplate
- Patent Title (中): 磁盘驱动器悬架基板和制造基板的方法
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Application No.: US12767018Application Date: 2010-04-26
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Publication No.: US08339745B2Publication Date: 2012-12-25
- Inventor: Ryosuke Yabu , Masakazu Sugino
- Applicant: Ryosuke Yabu , Masakazu Sugino
- Applicant Address: JP Yokohama-shi JP Ogaki-shi
- Assignee: NHK Spring Co., Ltd.,Ogaki Seiko Co., Ltd.
- Current Assignee: NHK Spring Co., Ltd.,Ogaki Seiko Co., Ltd.
- Current Assignee Address: JP Yokohama-shi JP Ogaki-shi
- Agency: Holtz, Holtz, Goodman & Chick, PC
- Priority: JP2009-113619 20090508
- Main IPC: G11B21/16
- IPC: G11B21/16 ; C21D8/00
Abstract:
A cylindrical boss portion is press-formed on a baseplate of a disk drive suspension. The boss portion is penetrated by a ball insertion hole relative to the thickness of the baseplate. The baseplate is formed of stainless steel. A chemically-polished surface is formed on an inner circumferential wall of the ball insertion hole by chemically polishing the baseplate after heat-treating it. The boss portion is inserted into a mounting hole of an actuator arm. A ball having a diameter larger than the inside diameter of the ball insertion hole is passed through the ball insertion hole. As the diameter of the boss portion is enlarged by the ball, the boss portion is fixed to the actuator arm.
Public/Granted literature
- US20100284111A1 BASEPLATE FOR DISK DRIVE SUSPENSION AND METHOD FOR MANUFACTURING BASEPLATE Public/Granted day:2010-11-11
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