Patent US4853812A successfully refreshed from Google Patents.
US4853812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structure for supporting magnetic head
Assignee: Hitachi Ltd
•
Filing: 1988-02-08
•
Granted: 1989-08-01
•
Expires: 2008-02-08
Abstract
Abstract A magnetic head supporting structure includes a gimbal member which carries a core slider and which is provided with a loading projection, and a loading beam member having one end connected with the gimbal member and contacting the loading projection to urge the core slider towards a recording medium. The surface of the portion of the loading beam member contacting the loading projection is offset from the surface of the loading beam member connected with the gimbal member, to thereby reduce the height difference between the plane and the centroid of the core slider. The reduced height difference reduces the moment which acts on the core slider during movement thereof, thus enabling the core slider to stably float without inclination with respect to the magnetic recording surface.
Inventors
- 👤 Hiroshi Daito
- 👤 Sigeo Hara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:33
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/4806; G11B5/4833
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
119 words
A magnetic head supporting structure, comprising: a gimbal member supporting a core slider and having a loading projection at a first portion; and a loading beam member having first and second surfaces at one end thereof, said gimbal member having a second portion being secured to said loading beam member at said second surface and said loading beam member contacting said loading projection at said first surface to urge said core slider towards a recording medium, said first surface being offset from said second surface to reduce a difference in height between said second surface and a centroid of said core slider, and said gimbal member having an inclined portion extending from said first portion to said second portion.
Claim 2
Dependent Claim
119 words
A magnetic head supporting structure, comprising: a gimbal member supporting a core slider and having a loading projection at a first portion; and a loading beam member having first and second surfaces at one end thereof, said gimbal member having a second portion being secured to said loading beam member at said second surface and said loading beam member contacting said loading projection at said first surface to urge said core slider towards a recording medium, said first surface being offset from said second surface to reduce a difference in height between said second surface and a centroid of said core slider, and said gimbal member having an inclined portion extending from said first portion to said second portion.
Claim 3
Dependent Claim
25 words
A magnetic head supporting structure according to claim 1, wherein a notch is formed in said loading beam member between said first and second surfaces.
Claim 4
Dependent Claim
132 words
A magnetic head supporting structure comprising a loading beam member including a first resilient spring section and a second section having flanges formed along opposite sides thereof to increase the rigidity thereof, a core slider, and a gimbal member supporting said core slider and having a loading projection, said gimbal member being mounted on said second section of said loading beam member, said loading beam member having a first surface in contact with said loading projection, said second section of said loading beam member having a second surface on which said gimbal member is mounted, said first surface os offset from said second surface by a dimension substantially equal to a height of said loading projection, and a notch being formed in said loading beam member between said first and second surfaces.
Claim 5
Dependent Claim
132 words
A magnetic head supporting structure comprising a loading beam member including a first resilient spring section and a second section having flanges formed along opposite sides thereof to increase the rigidity thereof, a core slider, and a gimbal member supporting said core slider and having a loading projection, said gimbal member being mounted on said second section of said loading beam member, said loading beam member having a first surface in contact with said loading projection, said second section of said loading beam member having a second surface on which said gimbal member is mounted, said first surface os offset from said second surface by a dimension substantially equal to a height of said loading projection, and a notch being formed in said loading beam member between said first and second surfaces.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |