Method and device for coating at least one wiper-blade element

US6793978B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Kurt Burger · Friolzheim, DE
• Guenter Schneider · Lorsch, DE
• Klaus Burghoff · Gerlingen, DE
• Thomas Weber · Eschborn, DE
• Jeanne Forget-Funk · Mountain View, US

Key dates

• Filing date: Jun 4, 2002
• Grant date: Sep 21, 2004
• Expiry date: Aug 16, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60S2001/3829
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention is based on a method for coating at least one wiper blade element (10) made of an elastomer material, in which first, the surface of the wiper blade element (10) is cleaned and activated by means of a plasma, and then in a CVD process, a coating material is brought into a plasma state and at least one protective coating (64) forms on the surface of the wiper blade element (10), where a high-frequency voltage is applied to the region of the wiper blade element (10) oriented away from the protective layer (64) by means of an electrode (56).The invention proposes that before being brought into a treatment chamber (32, 34, 36, 38, 40, 74), the wiper blade element (10) be cut to a useful length (66) from a profiled band and placed on an electrode plate (56) so that its wiper lip (18) stands approximately perpendicular to the electrode plate (56), which extends to both sides of the wiper blade element (10), and is subjected to a plasma flow (50).