Patent ID: 7721442
Filing Date: 2010-05-25
Classification: B60S,Y10T

Abstract:
1. A wiper blade partial pressure setting method for a wiper blade that includes a backing, which is received in a blade rubber that wipes a wiping surface, wherein the backing spreads an urging force applied from a wiper arm toward the wiping surface in a longitudinal direction of the blade rubber to unify contact pressures of the blade rubber against the wiping surface, the wiper blade partial pressure setting method comprising: virtually dividing the backing into a plurality of regions in a longitudinal direction of the backing; discretizing a wiping area of the wiper blade in the wiping surface in a wiping direction of the wiper blade and in a longitudinal direction of the wiper blade; and setting at least one of a curvature and a rigidity of each of the plurality of virtually divided regions of the backing in such a manner that a sum of variation differences of the contact pressures at respective discretized points is minimized.