Patent · US Expired

Device for coarse and fine positioning of a first element and a second element relatively to each other

US6043958A · kind A · utility

4Cited by

11References

20Claims

0Family size

Assignee

Deutsche Thomson-Brandt GmbH · DE

Inventors

Juergen Kaaden · Villingen, DE
Peter Mahr · Cochem, DE
Klaus Oldermann · Villingen-Schwenningen, DE

Key dates

Filing date	Sep 15, 1997
Grant date	Mar 28, 2000
Priority date	—
Expiry date	Sep 15, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/5504
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a device for positioning a first element relatively to a second element. The device according to the invention uses lifting means comprising a cam element and actuator means to actuate the cam element. The cam element has a plurality of contiguously arranged sectors with machined edges belonging to first and second interleaved groups. The machined edges are shaped such that a response of the lifting means to the actuator means has different values for sectors of said first and second group thereby providing alternately a coarse positioning and a fine positioning. The device may for example be used to position a multitrack magnetic tape and a magnetic writing/reading head relatively to each other.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.