US5099377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pad support device incorporating leaf spring
Assignee: Pentax Corp
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Filing: 1990-07-06
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Granted: 1992-03-24
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Expires: 2010-07-06
Abstract
Abstract A pad support device for supporting a pad member which is to be pressed against a disk member accomodated in a jacket. A movable member is moved toward and away from the disk member. A plate member carries the pad member, and a leaf spring is formed such that the leaf spring has at least two openings. A first portion of the leaf spring between the at-least-two openings is bent in one direction out of the plane of the surface thereof to be substantially arch-shaped while at-least-two second portions of the leaf spring are bent in a direction in which the first portion is bent to also be substantially arch-shaped. The first portion is secured to one of the movable member and the plate member, while the second portions are secured to the other of the movable member and the plate member, whereby the plate member is resiliently suspended from the movable member.
Inventors
- 👤 Hitoshi Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:16
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/32
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
161 words
A pad support device for supporting a pad member which is to be pressed against an information disk storage member accommodated in a jacket, comprising: a movable member which is moved toward and away from said disk member; a plate member carrying said pad member; and a leaf spring having at least two ends, said ends having flat surfaces which lie in and define a plane, said leaf spring further having at least two openings, a first portion of said leaf spring between said at least two openings being bent in one direction out of said plane to form a substantial arch-shape, and at least two second portions of said leaf spring being bent in a direction out of said plane opposite to said one direction to form respective substantial arch-shapes, wherein each said substantial arch shape comprises an apex portion and said leaf spring is positioned between and connected to said movable member and said plate member via said apexes.
Claim 2
Dependent Claim
161 words
A pad support device for supporting a pad member which is to be pressed against an information disk storage member accommodated in a jacket, comprising: a movable member which is moved toward and away from said disk member; a plate member carrying said pad member; and a leaf spring having at least two ends, said ends having flat surfaces which lie in and define a plane, said leaf spring further having at least two openings, a first portion of said leaf spring between said at least two openings being bent in one direction out of said plane to form a substantial arch-shape, and at least two second portions of said leaf spring being bent in a direction out of said plane opposite to said one direction to form respective substantial arch-shapes, wherein each said substantial arch shape comprises an apex portion and said leaf spring is positioned between and connected to said movable member and said plate member via said apexes.
Claim 3
Dependent Claim
71 words
The pad support device according to claim 1, wherein said at least two second portions comprises two arms, wherein said first portion comprises another arm arranged between said two arms, each said arm having a substantial midpoint, said another arm being bent towards said one direction at said substantial midpoint thereof, said two arms being bent in a direction opposite to that of said another arm at said substantial respective midpoints.
Claim 4
Dependent Claim
49 words
The pad support device according to claim 2, wherein said plate member has an upper surface and a lower surface, said plate member being connected to said leaf spring on said upper surface, said pad member being connected to said lower surface, below said apex of said another arm.
Claim 5
Dependent Claim
38 words
The pad support device according to claim 3, wherein said pad member includes a groove extending in a radial direction of said disk member at the portion where said pad member is adapted to press said disk member.
Claim 6
Dependent Claim
35 words
The pad support device according to claim 2, which further comprises adjusting means for adjusting the position of said pad member in the direction where said pad member is adapted to press said disc member.
Claim 7
Dependent Claim
58 words
The pad support device according to claim 5, which further comprises a base plate, wherein said adjusting means comprises a plurality of protruding members on said plate member which protrude toward said base plate, the amount of protrusion of said respective protruding members being changeable, whereby the clearance between said base plate and said pad member is adjustable.
Claim 8
Dependent Claim
38 words
The pad support device according to claim 8, wherein a plurality of holes are formed on said plate member, wherein said protruding members comprise respective screw members adapted to engage with respective holes formed on said plate member.
Claim 9
Dependent Claim
50 words
The pad support device according to claim 7, which further comprises a plurality of bosses on said base plate each adapted to receive a respective one of said screw members, an extreme end of each screw member adapted to be held in abutment against a respective one of said bosses.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-24 | 1995-09-23 | 1996-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-24 | 1999-09-23 | 2000-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-24 | 2003-09-23 | 2004-03-24 | $7700.00 | Window Closed / Lapsed |