Patent ID: 7137167

Claim:
A wiper blade comprising: a wiper strip that directly wipes a wiping surface; at least one backing plate that is installed to the wiper strip and extends parallel to a center line of the wiper strip, which extends in a longitudinal direction of the wiper strip through a transverse center of the wiper strip; and a lever assembly that is connected to a wiper arm and holds the wiper strip together with the at least one backing plate, which is installed in the wiper strip, wherein: the lever assembly includes a plurality of levers, which are linked together in tournament style; each lever has a finned portion, in which a fin is integrally formed; the finned portion of each lever forms a continuous mountain fold that has a first lateral wall, a top ridge and a second lateral wall, which are formed integrally and continuously along an entire length of the mountain fold; the first and second lateral walls of the mountain fold are arranged on first and second sides, respectively, of the top ridge in a transverse direction that is perpendicular to the center line of the wiper strip; the top ridge of the finned portion of each lever is offset from the center line of the wiper strip in the transverse direction such that the top ridge is located on a first side of the center line of the wiper strip; and the fin of each lever is formed in the second lateral wall of the mountain fold, such that the fin of each lever is located on a side of the top ridge that is opposite to the direction of the offset.