System, method, and apparatus for distributing stress with...

Details System, method, and apparatus for distributing stress with... System, method, and apparatus for distributing stress with...

2007-07-03

2007-07-03

Cao, Allen (Department: 2627)

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

Reexamination Certificate

active

10843725

ABSTRACT:
A disk clamp for securing data storage disks to the hub of a spindle motor in a hard disk drive has a stress distributing cavity to reduce the stress concentration on disk under the screw locations. The cavity may comprise a single, completely circumferential annular slot located in the perimeter side wall of the clamp, or a series of smaller cavities that are angularly aligned with each screw in the perimeter of the clamp. In the case of adding a series of small stress distribution cavities, the load distribution is modulated to higher harmonic components, thus reducing the peak-to-valley value of reaction force on the contact ring by about 20% to 50%.

REFERENCES:
patent: 5333080 (1994-07-01), Ridinger
patent: 5490024 (1996-02-01), Briggs
patent: 5517376 (1996-05-01), Green
patent: 5550687 (1996-08-01), Suzuki
patent: 5822151 (1998-10-01), Albrecht
patent: 6028739 (2000-02-01), Lindrose
patent: 6563668 (2003-05-01), Suwito
patent: 6594109 (2003-07-01), Renken
patent: 6724567 (2004-04-01), Kazmierczak et al.
patent: 6816338 (2004-11-01), Suwito
patent: 2003/0209529 (2003-11-01), Church et al.
patent: 61189451 (1986-11-01), None
patent: 3121540 (1991-12-01), None
patent: 4038754 (1992-02-01), None
patent: 4195781 (1992-07-01), None
patent: 5020760 (1993-01-01), None
patent: 5047129 (1993-02-01), None
patent: 2000100123 (2000-04-01), None
patent: 2001331995 (2001-11-01), None
“Disk Clamp with Spot Facing under Screw Surface”, IBM Technical Disclosure Bulletin, vol. 40, No. 09, Sep. 1997, pp. 137-140.
Research Disclosure, May 1990, 31383 Molded Push/Push Knob Design.

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