Browse Prior Art Database

Non-Motorized Head Load/Unloader for a Single Disk and File Applications

IP.com Disclosure Number: IPCOM000037700D
Original Publication Date: 1989-May-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Malagrino, GD, Jr: AUTHOR [+2]

Abstract

With the method described herein, it is possible to load and unload heads without the use of conventional motors and actuators. The size and form of the device allows for single disk use as well as pack and file use.

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Non-Motorized Head Load/Unloader for a Single Disk and File Applications

With the method described herein, it is possible to load and unload heads without the use of conventional motors and actuators. The size and form of the device allows for single disk use as well as pack and file use.

In Fig. 1, wire 1, which is a nickel titanium alloy wire, is attached to a fixed point on bracket 2. The other end of the wire is attached to lever 3 (see Fig. 2). Lever 3 is spring- loaded by spring 4. The wire takes a 200 milliamp current to shrink it 5% of its length, which allows the lever to rotate against the spring, unloading the head 5. When the current is taken away, the wire returns to its original length and the spring pressure rotates the lever back to reload the head. Therefore, when the power is off, the lever unloads the heads and when the power is on, the lever reloads the heads.

Disclosed anonymously.

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