US4389688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic head supporting mechanism
Assignee: Mitsubishi Electric Corp
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Filing: 1981-01-13
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Granted: 1983-06-21
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Expires: 2001-01-13
Abstract
Abstract A magnetic head supporting mechanism comprises a damper placed between a spring operation part of a head-supporting plate spring for supporting and mounting a magnetic head and a holder for supporting and fixing said plate spring thereby damping vibration of said spring operation part by surface friction between said damper and said spring operation part.
Inventors
- 👤 Noboru Higashiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:31
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/58; G11B5/60; G11B5/6005
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
84 words
A magnetic head supporting mechanism comprising: holder means; a gimbal spring having edge portions fixed to said holder means, a central portion and a plurality of elastic ring portions connecting said edge and central portions; a magnetic head fixed to said central portion; and damper means comprising at least one elastic sheet in sliding surface contact with said gimbal spring, whereby at least a portion of the vibration of said magnetic head is absorbed by surface friction between said damper means and said spring.
Claim 2
Dependent Claim
84 words
A magnetic head supporting mechanism comprising: holder means; a gimbal spring having edge portions fixed to said holder means, a central portion and a plurality of elastic ring portions connecting said edge and central portions; a magnetic head fixed to said central portion; and damper means comprising at least one elastic sheet in sliding surface contact with said gimbal spring, whereby at least a portion of the vibration of said magnetic head is absorbed by surface friction between said damper means and said spring.
Claim 3
Dependent Claim
37 words
The mechanism of claim 1 wherein said damper means comprise two parallel elastic sheets, each having edges fixed to said holder means and being in surface contact with opposing portions of said ring portions of said spring.
Claim 4
Dependent Claim
34 words
The mechanism of claim 1 wherein said damper means comprise an elastic sheet fixed to a surface of said central portion of said spring and having the same diameter as said elastic ring portions.
Claim 5
Dependent Claim
36 words
The mechanism of claim 1 wherein said damper means comprise a plurality of radially extending sheets in surface contact with said spring and being fixed to said central portion and the outermost of said ring portions.
Claim 6
Dependent Claim
45 words
The mechanism of claim 1 wherein said damper means comprise an elastic sheet having outer edges fixed to said holder means and a central aperture, the edges of said sheet adjacent said central aperture being in surface contact with said central portion of said spring.
Claim 7
Dependent Claim
11 words
The mechanism of claim 1 wherein said sheets comprise continuous bands.
Claim 8
Dependent Claim
38 words
The mechanism of claim 1 wherein said damper means comprise an elastic pad having one end in surface contact with said holder and said head, sand pad being fixed to only one of said holder and said head.
Claim 9
Dependent Claim
12 words
The mechanism of claim 1 wherein said elastic material is an elastomer.
Claim 10
Dependent Claim
113 words
A magnetic head supporting mechanism, comprising: holder means; a gimbal spring having edge portions fixed to said holder means, a central portion and a plurality of elastic ring portions connecting said edge and central portions; a magnetic head fixed to said central portion; a rigid plate having the same diameter as said ring portions and being in surface contact with said spring; and damper means comprising two parallel elastic sheets, each having edges fixed to said holder means and being in sliding surface contact with opposing portions of said rigid plate, whereby at least a portion of the vibration of said head is absorbed by surface friction between said sheets and said plate.
Claim 11
Dependent Claim
113 words
A magnetic head supporting mechanism, comprising: holder means; a gimbal spring having edge portions fixed to said holder means, a central portion and a plurality of elastic ring portions connecting said edge and central portions; a magnetic head fixed to said central portion; a rigid plate having the same diameter as said ring portions and being in surface contact with said spring; and damper means comprising two parallel elastic sheets, each having edges fixed to said holder means and being in sliding surface contact with opposing portions of said rigid plate, whereby at least a portion of the vibration of said head is absorbed by surface friction between said sheets and said plate.
Claim 12
Dependent Claim
12 words
The mechanism of claim 9 wherein said elastic material is an elastomer.
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) | 1986-06-20 | 1986-12-20 | 1987-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-20 | 1990-12-20 | 1991-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-20 | 1994-12-20 | 1995-06-21 | $7700.00 | Window Closed / Lapsed |