Wiper-blade device

A wiper-blade device which uses a wiper blade having a double-blade structure, wherein the notched portions are formed in each of the blade sections at required intervals in order to allow the blade section to bend easily so as to follow a curved surface to be wiped, and the notched portions are disposed so that those of one of the blade sections do not overlap those of the other in the wiping direction.

A wiper-blade device using a wiper blade having a double-blade structure, with the device being characterized in that notched portions are formed in each blade section at required intervals in order to allow the blade section to bend easily so as to follow a curved surface to be wiped, and the notched portions are disposed so that those of one of the blade sections do not overlap those of the other in the wiping direction, in that, for the purpose of providing a desired bent shape for the blade sections with the notched portions formed therein, elastic bending plates are attached to a holder section to which the blade sections are attached, and the blade sections each have a more sharply bent shape at the ends thereof than in the other portions, in that the holder section has notches formed therein at required intervals in a longitudinal direction of the wiper blade so as to bend as the notched portions of the blade sections are bent, and in that the elastic bending plates comprise spring materials that are laid on top of each other and are composed of spring steel plates or phosphor bronze plates, and have such spring characteristics that the elastic bending plates are weaker at the ends thereof than in an intermediate portion thereof.