Browse Prior Art Database

Auto-Compliant Contact Recording Shoe

IP.com Disclosure Number: IPCOM000074360D
Original Publication Date: 1971-Apr-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Murphy, JG: AUTHOR [+2]

Abstract

A recording shoe for magnetic recording or reading on the outside surface of a cone-shaped file comprises a single leaf spring 16 includes a bracket 14 which is attached to a rigid mount 10 such that the spring is allowed to pitch about pivot point 12 but is rigid with respect to yaw and roll.

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Auto-Compliant Contact Recording Shoe

A recording shoe for magnetic recording or reading on the outside surface of a cone-shaped file comprises a single leaf spring 16 includes a bracket 14 which is attached to a rigid mount 10 such that the spring is allowed to pitch about pivot point 12 but is rigid with respect to yaw and roll.

Recording head 18 is mounted on the forward end of the leaf spring 16 and a pad 20 is mounted on the trailing end of the spring. There is a third pad set, 22, 23, mounted in the center of the leaf spring 16 directly under the pivot point 12. When head 18 is loaded against the curved surface of the recording medium such that the center pads 22, 23, are in contact with the surface, the leading recording head 18 and trailing pad 20 will be loaded against the surface by the spring action of the leaf spring 16. As the head is accessed across, for example, a conical surface, this spring action will cause recording head 18 to remain on contact over a wide range of recording surface radii. The loading force and spring tension can be adjusted to compensate for changes in the recording surface velocity. The spring tension will increase at the larger radius of curvature, thus giving a dynamic loading force for the head. Items 18, 20, 22, and 23, may be read/write heads or pressure pads.

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