Vehicle windshield wiper blade assemblies

• US 4,007,511 A
• Filed: 04/07/1975
• Issued: 02/15/1977
• Est. Priority Date: 04/07/1975
• Status: Expired due to Term

• Current Assignee: Trico Products Corporation (Crowne Group LLC)
• Original Assignee: Trico Products Corporation (Crowne Group LLC)
• Inventors: Deibel, Raymond A.
• Primary Examiner(s): Feldman, Peter
• Application Number:
  US05/565,641
• Time in Patent Office: 680 Days
• Field of Search: 15/250.32-250.42
• US Class Current: 15/250.47
• CPC Class Codes: B60S 1/3801 characterised by a blade support harness consisting of several articulated elements B60S1/3803, B60S1/3806 take precedence
• CPC Class Codes: B60S 1/40 Connections between blades and arms
• CPC Class Codes: B60S 1/4074 with means provided on the blade for locking the side pin
• CPC Class Codes: B60S 2001/3813 chacterised by a support harness consisting of several articulated elements

Abstract

A superstructure for a windshield wiper blade assembly includes a pair of primary levers connected together by a spring hinge which urges the outer ends of the levers toward the superstructure. A third lever is pivoted at the transverse hinged axis. The primary levers are tubular in cross section for substantially their entire length and have integrally formed wiping element receiving claws at their outboard ends. The inboard ends are formed with an integral web and depending apertured ears, the web and ears forming a spring retainer, the ears being interfittable and having their apertures aligned to receive a transverse hinge pin.

Claims

1. In a windshield wiper blade assembly for motor vehicles comprising a flexible wiping element, an articulated pressure distributing superstructure for supporting said wiping element comprising a pair of primary levers pivoted at their inboard ends to a pin member and slidably engaging at their outboard ends the flexible wiping element adjacent its outboard ends, a torsion spring surrounding the pin member and having its ends engaging the lever members to urge the outboard ends thereof in the direction of the flexible wiping element, a third lever member pivotally supported on said pin member intermediate the ends of said third lever and having its ends slidably engaging the wiping element at points spaced substantially from the free ends of the wiping element, and means for applying pressure at said pin dominating the urge of said torsion spring characterized in that the primary levers are each tubular in cross section for substantially their entire length, the adjacent end portions having an integrally formed web and depending apertured ears forming a torsion spring retainer, the ears of one of said primary levers being interfittable with the ears of the other of said primary levers, the apertures being in transverse alignment to receive said pin member, the outboard ends of said primary levers having integrally formed claws for slidable engagement with said wiping element, said third lever comprising an elongate web portion having depending sides at each edge, said web portion having spaced-apart openings along its length and opposed claws at each end slidably engaging the wiping element, said openings being elongated in the direction of the longitudinal axis of said third lever, the open area of the web of said third lever being greater than the solid area.