Holding arrangement having an apparatus for balancing a load torque

US7109678B2 · kind B2 · utility

Assignee

• Carl Zeiss Stiftung · DE

Inventors

• Martin Kraus · Echterdingen, DE
• Hartmut Gartner · Oberkochen, DE
• Martin Poxleitner · Königsbronn, DE
• Michael Wirth · San Antonio, US
• Alfons Abele · Trochtelfingen, DE
• Roland Brenner · Wallhausen, DE
• Norbert Sporer · Geretsried, DE
• Matthias Hahnle · Munich, DE

Key dates

• Filing date: Jun 30, 2004
• Grant date: Sep 19, 2006
• Expiry date: Nov 10, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16M2200/044
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In a holding arrangement (101) for a medical-optical instrument (103), an electric motor is provided in a rotational joint (111, 119) to compensate a load torque occurring in this rotational joint. This electric motor is supplied with current in correspondence to a detected position of the rotational joint (111, 119). A current control curve required for this purpose is stored in a memory. This current control curve can be determined in that the rotational joints are deflected with the electric motor into predetermined positions and the current demand needed therefor is detected.