Wiper with reduced chatter and wind lift

Details Wiper with reduced chatter and wind lift Wiper with reduced chatter and wind lift

1992-06-29

1993-05-04

Hornsby, Harvey C.

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

15250001, 188378, B60S 104

Patent

active

052069699

ABSTRACT:
A specially designed and attached anti-wind lift airfoil also acts to reduce wiper chatter in several ways. The foil is fixed to and runs along side the blade support, bracing and stiffening it. In addition, masses molded inside the foil, plus its own mass, increase the total mass and moment of inertia of the wiper in operation, which acts to counteract the sticking effect. The foil is somewhat resilient, and is fixed to the blade support at widely spaced points, with its center section unsupported. If the blade does stick and slip in operation, undulations are thereby set up in the resilient airfoil, absorbing and damping out the energy that would otherwise show up as chatter.

REFERENCES:
patent: 3317946 (1967-05-01), Anderson
patent: 4361927 (1982-12-01), Matsui et al.
patent: 4561143 (1985-12-01), Beneteau
patent: 4590638 (1986-05-01), Beneteau
patent: 4782547 (1988-11-01), Mohnach
patent: 5070571 (1991-12-01), Arai

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