Rotating head apparatus including a flying tape edge guide

Details Rotating head apparatus including a flying tape edge guide Rotating head apparatus including a flying tape edge guide

1985-09-27

1987-08-11

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Head accessory

36013024, G11B 1560

Patent

active

046865977

ABSTRACT:
A tape recording/retrieving system includes a tape helically-wrapped about a cylindrical headwheel. When the headwheel rotates, the tape is hydrodynamically lifted above the rotating surface of the headwheel. A plurality of tape edge guides, illustratively three, disposed about the circumference of the headwheel, provide support surfaces for the tape. The edge guides include surfaces adjacent the cylindrical headwheel surface which are also subject to hydrodynamic forces when the headwheel rotates, causing the edge guides to "fly" away from the rotating surface, thus reducing wear problems on the headwheel and the guides. Using a knowledge of the system parameters, the edge guides are fabricated with a prestress so that they fly at a particular distance above the rotating surface which provides a supporting surface for the flying tape.

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