Marking device

US7444760B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Erhard Hoffmann · Altenriet, DE
• Stefan Clauss · Echterdingen, DE
• Joachim Hecht · Magstadt, DE
• Christian Heine
• Reiner Krapf · Reutlingen, DE
• Julian Bergmann · Stuttgart, DE

Key dates

• Filing date: May 3, 2005
• Grant date: Nov 4, 2008
• Expiry date: Jul 9, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B3/12
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A marking device, in particular a hand-held marking tool for positioning markings, comprises first means (50, 52, 54, 56) which make it possible to position the device (10) in a predefinable first position of a reference surface (16), and second means (46) for leveling the device (10) relative to the reference surface (16), as well as a tracking system (13) for determining a distance covered by the device (10) relative to the first position of the device. The tracking system (13) detects the movement of the measuring instrument (10) on the reference surface (16) in two orthogonal directions (18,20).