Wiper blade for a window washing apparatus

US5819361A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Wilfried Merkel · Kappelrodeck, DE
• Jürgen Mayer · Munich, DE
• Eric Pollaris · Dransfeld, DE

Key dates

• Filing date: Sep 16, 1996
• Grant date: Oct 13, 1998
• Expiry date: Sep 16, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T403/32885
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A wiper blade is proposed which is a part of windshield wiper systems of motor vehicles and is used for cleaning windshields of motor vehicles. The wiper blade has a multi-link elongated support bow system for a wiper strip resting against the windshield and has at least one upper support bow, on whose at least one end a lower support bow is hinged by means of a hinge bolt disposed transversely to the long extension of the support bow, wherein the upper bow of a U-shaped cross section in the area of the hinged connection extends with its U-shaped legs over a section of the lower bow of a U-shaped cross section in such a way, that the U-shaped legs of the two support bows essentially lie parallel with each other. The hinge bolt fittingly projects through the U-shaped legs in openings which are coaxial in respect to each other and the hinge bolt is provided with means for securing it against axial displacement in its center area located between the U-shaped legs of the lower bow. The securing means are connected in one piece with the hinge bolt made of an elastic material and can be deflected against a spring force at least as far as the surface area of the bolt, wherein the securing…