Cleaning head for floor cleaning device

US7155773B2 · kind B2 · utility

Assignee

• Alfred Kärcher GmbH & Co. KG · DE

Inventors

• Uli Haeussermann · Fellbach, DE
• Roland Jeutter · Winnenden, DE

Key dates

• Filing date: Oct 12, 2005
• Grant date: Jan 2, 2007
• Expiry date: Oct 12, 2025

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D7/10
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An overload coupling is provided for the limited transfer of torque in a floor cleaning device. A drive element and a driven element are arranged concentrically to one another, thereby forming an intermediate space. The intermediate space accommodates at least one coupling element which transfers torque and can be moved from the intermediate space into an alternative space contrary to the action of an elastic restoring force when an overload occurs. The overload coupling has an overload element which is spring-loaded in the direction of rotation of the coupling element and releases the alternative space for the coupling element when an overload occurs.