Windshield wipers for vehicles

Claim 1

In a wiper blade of a windshield wiper of A vehicle, including a rubber ribbon kept in slidable contact with the windshield, a leaf spring mounted on said rubber ribbon for holding the same, two pairs of auxiliary stays each pair of which is connected at its extending ends to said leaf spring, a pair of main stays connected at its extending ends to said two pairs of auxiliary stays, each of said main and auxiliary stays being connected at its inner ends to each other and being inverted Vshaped cross section to form two opposed windward and leeward side walls, each pair of said main and auxiliary stays being angled at its connection for having a spring action to press said rubber ribbon through said leaf spring against the windshield, and a driving arm swingably connected to the connection of said main stays for effecting swinging movement of the wiper blade as a whole on the windshield, the improvement comprising a plurality of holes formed in the leeward side walls of said main and auxiliary stays and arranged in the longitudinal direction thereof in a manner so as to occupy the major areas thereof for effecting free escape therethrough of a stray air of relatively higher static pressure which may be confined during the running operation of the vehicle in a space defined by said windward and leeward side walls, thereby minimizing lifting force to be exerted to said main and auxiliary stays due to said stray air.