WIPER BLADE

A wiper blade (12) includes a rubber blade (14), which wipes a wiping surface (G). The rubber blade (14) includes a base (41) and an attachment groove (50), which extends in a longitudinal direction. A backing (42), which has a predetermined rigidity and includes a central part outwardly curved opposite to the wiping surface (G), is formed from a spring material fitted into the attachment groove (50) of the rubber blade (14). An elongated holder member (13), which has a longitudinally central part coupled to a distal portion of a wiper arm (12), includes a first end (13a) and a second end (13b) at two longitudinal sides and a first holding portion (31) and a second holding portion (32), which are respectively arranged at the sides of the first end (13a) and the second end (13b). The first holding portion (31) and the second holding portion (32) hold the base (41) of the rubber blade (14). The rubber blade (14) projects in the longitudinal direction from the first and second holding portions (31, 32) of the holder member (13) thereby forming a following end portion (X) that follows a curve of the wiping surface (G). The holder member (13) includes two contact wall portions (51) extending outward in the longitudinal direction from at least one of the first holding portion (31) and the second holding portion (32) and respectively contacting two side surfaces of the following end portion (X).