Patent EP0067346A1 successfully refreshed from Google Patents.
EP0067346A1
Expired / Lapsed
EP
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Read/write head carriage assembly for a floppy disk drive
Assignee: Siemens AG
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Filing: 1982-05-28
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Granted: —
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Expires: 2002-05-28
Abstract
Abstract There is disclosed a read write head carriage assembly for a data storage device such as a floppy disk drive. The carriage assembly includes a base (12) which is movable, relatively, in a linear direction parallel to the plane of the recording medium. A head support arm (22) is pivoted at one end with respect to the base. First and second magnetic transducers (55, 56) are mounted in opposed relationship on the base and on the free end of the support arm, respectively. The two transducers are gimbal-mounted to permit self alignment to the recording medium (68).
Inventors
- 👤 Jan G. Krane
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 22:35
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/58; G11B5/54
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
321 words
A read/write head carriage assembly for a data storage device for use with a flexible, double-sided magnetic recording medium, said carraige assembly comprising, in combination: (a) a carriage base'mounted in said data storage device for relative motion in a substantially linear direction parallel to the plane of said recording medium, said base having a first transducer mounting location; (b) a support arm having two ends, one end being pivoted with respect to said base and the other end having a second transducer mounting location movable with said support arm toward and away from said first transducer location; (c) a first gimbal mounted on said base at said first transducer mounting location; (d) a first magnetic transducer mounted on said first gimbal so as to be in operative relationship with one side of said recording medium, said first transducer having two degrees of freedom about two perpendicular first axes substantially parallel to the i plane of said recording medium; (e) a first load point means, coupled to said base, engaging a central region of said first transducer to provide a load point that is fixed relative to said base in a direction normal to the plane of said recording medium; (f) a second gimbal mounted on said support arm at said second transducer mounting location; (g) a second magnetic transducer mounted on said second gimbal so as to be in operative relationship with the opposite side of said recording medium, said second transducer having at least one degree of freedom aboht a second axis substantially parallel to the plane of said recording medium; (h) spring means for mechanically biasing said support arm toward said base, thereby causing said second transducer to exert a tracking force through said recording medium against said first transducer, said base being mounted in said data storage device such that said recording medium remains substantially planar in the area where it passes between said first and second transducers.
Claim 2
Dependent Claim
321 words
A read/write head carriage assembly for a data storage device for use with a flexible, double-sided magnetic recording medium, said carraige assembly comprising, in combination: (a) a carriage base'mounted in said data storage device for relative motion in a substantially linear direction parallel to the plane of said recording medium, said base having a first transducer mounting location; (b) a support arm having two ends, one end being pivoted with respect to said base and the other end having a second transducer mounting location movable with said support arm toward and away from said first transducer location; (c) a first gimbal mounted on said base at said first transducer mounting location; (d) a first magnetic transducer mounted on said first gimbal so as to be in operative relationship with one side of said recording medium, said first transducer having two degrees of freedom about two perpendicular first axes substantially parallel to the i plane of said recording medium; (e) a first load point means, coupled to said base, engaging a central region of said first transducer to provide a load point that is fixed relative to said base in a direction normal to the plane of said recording medium; (f) a second gimbal mounted on said support arm at said second transducer mounting location; (g) a second magnetic transducer mounted on said second gimbal so as to be in operative relationship with the opposite side of said recording medium, said second transducer having at least one degree of freedom aboht a second axis substantially parallel to the plane of said recording medium; (h) spring means for mechanically biasing said support arm toward said base, thereby causing said second transducer to exert a tracking force through said recording medium against said first transducer, said base being mounted in said data storage device such that said recording medium remains substantially planar in the area where it passes between said first and second transducers.
Claim 3
Dependent Claim
22 words
The head carriage assembly recited in claim 1, wherein said first transducer has a substantially planar contact surface facing said second transducer.
Claim 4
Dependent Claim
23 words
The head carriage assembly as recited in claim 1, wherein said second transducer has a substantially planar contact surface facing said first transducer.
Claim 5
Dependent Claim
25 words
The head carriage assembly recited in claim 1, wherein said first and second transducers each have a substantially planar contact surface facing the other transducer.
Claim 6
Dependent Claim
29 words
The head carriage assembly recited in claim 1, wherein said first axes are transverse and parallel, respectively, to the direction of travel of said recording medium past said transducers.
Claim 7
Dependent Claim
26 words
The head carriage assembly recited in claim 1, wherein said second axis is transverse to the direction of travel of said recording medium past said transducers.
Claim 8
Dependent Claim
31 words
The head carriage assembly recited in claim 1, wherein said second transducer has two degrees of freedom about two perpendicular second axes substantially parallel to the plane of said recording medium.
Claim 9
Dependent Claim
29 words
The head carriage assembly recited in claim 7, wherein said second axes are transverse and parallel, respectively, to the direction of travel of said recording medium past said transducers.
Claim 10
Dependent Claim
56 words
The head carriage assembly recited in any one of the foregoing claims further comprising a second load point means, coupled to said support arm, engaging a central region of said first transducer to provide a load point that is fixed relative to said support arm in a direction normal to the plane of said recording medium.
Claim 11
Dependent Claim
118 words
The head carriage assembly recited in any one of the claims 1 - 8, further comprising an auxiliary load arm pivoted with respect to said base and movable in a direction normal to the plane of the recording medium toward and away from said support arm between a first load position in which said first and second transducers, contacting the surfaces of said recording medium are in an operative relationship with said medium for performing read/write operations and a second load position in which said transducers still in contact with said medium, are idling along tracks of said medium in a nonoperative relationship, said auxiliary arm being movable from the first load position into the second load position.
References Cited (Backward Citations)
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