Wiper blade
First Claim
1. In a windshield wiper blade assembly including a flexible, articulated pressure distributing superstructure comprising a central primary lever and a pair of secondary end levers, said levers being arranged end to end, said secondary levers being pivotally connected to said primary lever on transverse axes each at an opposite end of said primary lever;
- said primary lever comprising a web and depending side walls, said secondary levers each having a connecting projection extending telescopically between said side walls inwardly beyond said transverse axes, a flat leaf spring nestled between said side walls extending longitudinally for substantially the entire length of said primary lever and being fulcrumed medially between the ends thereof, said connecting projections engaging said leaf spring adjacent its ends and interleaved between said web and said leaf spring whereby the outer ends of the secondary levers are urged toward the surface to be wiped.
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Accused Products
Abstract
An articulated windshield wiper blade superstructure for distributing applied pressure proportionately along the length of a wiper blade which includes a central primary lever and a pair of secondary end levers arranged end to end. The end levers are pivotally connected to the central levers. A single flat spring extends from end to end through the central lever. At each end it engages a projection on the end levers which extends inwardly of the pivotal connection. The spring functions to distribute the arm pressure to the end levers and also functions as a latch to retain the blade on the arm.
50 Citations
17 Claims
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1. In a windshield wiper blade assembly including a flexible, articulated pressure distributing superstructure comprising a central primary lever and a pair of secondary end levers, said levers being arranged end to end, said secondary levers being pivotally connected to said primary lever on transverse axes each at an opposite end of said primary lever;
- said primary lever comprising a web and depending side walls, said secondary levers each having a connecting projection extending telescopically between said side walls inwardly beyond said transverse axes, a flat leaf spring nestled between said side walls extending longitudinally for substantially the entire length of said primary lever and being fulcrumed medially between the ends thereof, said connecting projections engaging said leaf spring adjacent its ends and interleaved between said web and said leaf spring whereby the outer ends of the secondary levers are urged toward the surface to be wiped.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
Specification