Wiper blade with spring bias

US6684449B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Achim Neubauer · Baden-Baden, DE
• Martin-Peter Bolz · Laufenburg (Baden), DE
• Jochen Moench · Baden-Baden, DE

Key dates

• Filing date: Jan 18, 2002
• Grant date: Feb 3, 2004
• Expiry date: Aug 3, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60S1/4019
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A wiper blade for cleaning windows, especially of motor vehicles, is proposed, which has an elongated, rubber-elastic wiper strip (20) that can be pressed against the window (22) and is retained by a multi-member support bracket system (12) that has a main bracket (14), located in the middle portion of the support bracket system, is provided with a bolt (26), oriented transversely to the length of the wiper blade (10), for pivotable connection to a wiper arm (28) that is urged toward the window and is driven to swing, resulting in one wiper blade half near the swing axis and one wiper blade half remote from the swing axis, and the wiper blade is provided with spring means, which under tension, when the wiper blade is pressed against the window, additionally urge the half remote from the swing axis toward the window. A favorable embodiment and disposition of the spring means in terms of the masses to be moved is achieved by providing that the spring means are embodied as a leg spring (60), of which one leg (64) is braced directly or indirectly on the pivot bolt (26) and its other leg (66) is fixed to the half near the swing axis of the main bracket (14).