Pivotal support assembly for a magnetic head

Claim 2

A support forming an integral structure for pivotally loading a magnetic transducer on to a surface of a magnetic medium and comprising: a single bifurcated leaf spring element having located at one end thereof an elongated deflectable center member positioned between the bifurcated members, said center member when deflected having a bias which acts in a direction to restore said center member into position between the undeflected bifurcated members; alignment means rigidly connected to the ends of the Bifurcated members and positioned to extend therefrom in a predetermined direction; and a pivot bar positioned between said center member deflected in said predetermined direction and the bifurcated members with each end of the pivot bar communicating with said alignment means, said deflected center member and said alignment means yieldably supporting said pivot bar there between, said pivot bar being adapted to be supportably connected to said magnetic transducer for loading said transducer on to selected position of the surface of a magnetic medium while concurrently affording pivotal movement of the magnetic transducer by deflection of the bifurcated members and center member in response to pitch, roll and altitude of the transducer relative to said surface and maintaining said pivot bar and magnetic transducer in the angle of yaw and movement in the tangential and radial direction.

Claim 3

The support of claim 1 further comprising: arm assembly means operatively coupled to said spring element at the other end thereof for moving said transducer into position parallel to and spaced a predetermined distance from said surface.

Claim 4

The support of claim 1 wherein: said alignment means includes a pair of pin members one of which is connected by one end thereof to the terminus of each of said bifurcated members in substantially parallel alignment with each other and with the other end of said pin members freely extending from said bifurcated member and having a generally spherical shape; and wherein said pivot bar includes a first aperture at one end thereof having a generally circular cross-sectional shape and a dimension slightly larger than the diameter of the spherical end of said pin members and a second aperture at the other end thereof having a generally elliptical shape and a dimension, on the same surface as said first aperture, slightly larger than the diameter of said spherical end of said pin members, each of said apertures having inwardly sloping walls forming a conical shaped surface within the interior of said apertures, said pin members being positioned into said apertures and communicating with said conical shaped interior aperture walls to rigidly support said pivot bar in alignment therewith between said deflected center member and said bifurcated members.

Claim 5

The support of claim 2 further comprising: a cam member operatively connected to said arm assembly means and adapted to communicate with said spring element to provide a predetermined spring bias thereon for loading said transducer onto the surface of said magnetic medium.

Claim 6

The support of claim 3 wherein said pivot bar is generally rectangular in shape.

Claim 7

The support of claim 3 wherein said pin members are generally cylindrical in shape.

Claim 8

The support of claim 5 wherein said pivot bar is formed of a plastic material.

Claim 9

The support of claim 6 wherein said pin member is formed of a graphite impregnated nylon material.

Claim 10

A pivotal support for loading a transducer on a thin film of moving fluid comprising: means including spring element members; a pair of cylindrically shaped pivot elements each having one end thereof rigidly fastened to the terminus of each member to position each of said pivot elements in a plane substantially perpendicular to said spring element members and substantially parallel to each other, the other end of each of said pivot elements being substantially spherical in shape and freely extending from said spring element members; and a rectangular shaped pivot bar adapted to be operatively connected to a transducer, said pivot bar having a first aperture extending therethrough at one end thereof and formed of a generally circular cross-section and a second aperture extending therethrough at the other end thereof and formed of a generally elliptical cross-section, each of said apertures having a dimension slightly larger than the diameter of said other end of said pivot element and located on the same one surface of said pivot elemenT and inwardly sloping side walls which reduce the diameter of said aperture to a dimension which is less than that of said other end of said pivot element, said pivot bar being positioned to be contiguous with said spring element members and with said same one surface being positioned toward said spring element members enabling said pivot elements to be positioned in said apertures and communicate with said inwardly sloping side walls to align said pivot bar therebetween, said pivot bar being connected to said magnetic transducer and being adapted to load the transducer connected to said pivot bar into a selected position within the thin film of moving fluid enabling the transducer to roll and pivot within said thin film restricting lateral movement of and the angle of yaw of said transducer within said thin film.

Claim 11

A pivotal support for loading a transducer on a thin film of moving fluid comprising: means including spring element members; a pair of cylindrically shaped pivot elements each having one end thereof rigidly fastened to the terminus of each member to position each of said pivot elements in a plane substantially perpendicular to said spring element members and substantially parallel to each other, the other end of each of said pivot elements being substantially spherical in shape and freely extending from said spring element members; and a rectangular shaped pivot bar adapted to be operatively connected to a transducer, said pivot bar having a first aperture extending therethrough at one end thereof and formed of a generally circular cross-section and a second aperture extending therethrough at the other end thereof and formed of a generally elliptical cross-section, each of said apertures having a dimension slightly larger than the diameter of said other end of said pivot element and located on the same one surface of said pivot elemenT and inwardly sloping side walls which reduce the diameter of said aperture to a dimension which is less than that of said other end of said pivot element, said pivot bar being positioned to be contiguous with said spring element members and with said same one surface being positioned toward said spring element members enabling said pivot elements to be positioned in said apertures and communicate with said inwardly sloping side walls to align said pivot bar therebetween, said pivot bar being connected to said magnetic transducer and being adapted to load the transducer connected to said pivot bar into a selected position within the thin film of moving fluid enabling the transducer to roll and pivot within said thin film restricting lateral movement of and the angle of yaw of said transducer within said thin film.

Claim 12

The pivotal support of claim 9 further comprising means adapted to connect said spring element to an arm assembly means capable of selectively positioning said transducer on said think film of moving fluid.

Claim 13

The pivotal support of claim 9 wherein the angle of slope of said side walls is between about 30* and about 60* with respect to the axis of the aperture.

Claim 14

The pivotal support of claim 10 wherein the angle of slope of said sidewalls is about 45* with respect to the axis of the aperture.