Rotation-angle sensor for displaying a plurality of rotations of a shaft

US5922971A · kind A · utility

Assignee

• Preh-Werke GmbH & Co. KG · DE

Inventors

• Hans-Michael Schmitt · Münnerstadt, DE
• Oswald Reuss · Unterelsbach, DE

Key dates

• Filing date: Aug 4, 1997
• Grant date: Jul 13, 1999
• Expiry date: Aug 4, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G01D5/04
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In known sensors, "failure" conditions led to approximately a 10 fold amplification of the failures. Contrary to this, a rotation-angle sensor of this invention provides a rotation-angle sensor housing (5) held within a component cover (1) to have translatory movement, with a rotation-angle-sensor shaft (3) and a component shaft (6) being coupled via a coupling piece (7). Each shaft end (8, 9) of the coupling piece has flat-edge portions, with one shaft end (9) having many more of flat-edge portions than does the other shaft end (8). The rotation-angle-sensor shaft (3) and the component shaft (6) have complementary recesses for receiving the shaft ends. This rotation-angle sensor is particularly adapted to be used for monitoring brake lining of vehicles.