Browse Prior Art Database

Bidirectional Incremental or Continuous Drive Mechanism

IP.com Disclosure Number: IPCOM000092260D
Original Publication Date: 1968-Nov-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Wolfheimer, AD: AUTHOR

Abstract

This linear translation mechanism provides incremental or continuous movement of an integral member of the mechanism. The mechanism can be used for translating a read-record head in recording and reading on a magnetic disk recorder. It is also suitable for translating any other type of head which requires incremental or continuous bidirectional linear movement.

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Bidirectional Incremental or Continuous Drive Mechanism

This linear translation mechanism provides incremental or continuous movement of an integral member of the mechanism. The mechanism can be used for translating a read-record head in recording and reading on a magnetic disk recorder. It is also suitable for translating any other type of head which requires incremental or continuous bidirectional linear movement.

A main frame supports two spaced parallel worms for rotation. Mounted between the worms is a worm gear. The latter is free to rotate on a carriage which slideably engages a slot in the frame located between the two worm gears. A drive motor or other power source provides rotary motion to a drive gear. This engages a first gear drivingly connected to the first worm by a slip clutch. The rotary motion imparted to the first gear associated with the first worm is transmitted to a second gear. This is drivingly connected to the second worm by another slip clutch. The worms have attached, at their opposite ends, an escape ratchet each of which is under the control of an individual escape magnet.

When both escape ratchets are locked by their associated escape magnets, the drive motor causes the drive gear to rotate. The first and second gears connected via the slip clutches to the first and second worms also rotate. The worms, however, are locked by the escape ratchets and the drive gears on each of the worms turn freely due to the associated slip clutches. Under this operating condition, the worm gear connected to the slideable carriage does not rotate and the carriage remains stationa...