Vehicle pane washing apparatus, particularly for headlight diffusing lenses

US4955543A · kind A · utility

Assignee

• Hella KGaA Hueck & Co. · DE

Inventors

• Peter Orth · Neunburg vorm Wald, DE
• Ulrich Witt · Lippstadt, DE

Key dates

• Filing date: Aug 14, 1989
• Grant date: Sep 11, 1990
• Expiry date: Aug 14, 2009

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60S1/528
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A pane washing appartus for a motor vehicle comprises a pressure source to drive a cleaning fluid which in turn activates a valve and a jet nozzle associated with a jet-nozzle carrier which is movable from a pulled-back rest position to an operational, deployed position. The valve is first opened once the jet-nozzle carrier has moved the jet nozzle to the deployed position. The valve includes a cap which loosely covers a passage opening in the jet-nozzle carrier leading to the jet nozzle but which follows movement of the jet-nozzle carrier until its peripheral area contacts a fixed stop thereby uncovering the passage opening immediately before the jet nozzle reaches its deployed position. The cap is pressed against the jet-nozzle carrier by cleaning fluid pressure, a spring or a permanent magnet.