Abstract: A vehicle wiper blade assembly has a cover for covering blade support members, which support a wiper blade at different points therealong, and for covering portions of the wiper blade. A blade spoiler can be adjustably attached either to a primary lever, which connects the support members with the cover to a wiper arm, or to the wiper arm. The spoiler presses the wiper blade against the windshield when the vehicle is moving, improving the wiping efficiency. The lower edge of the spoiler is positioned nearer to the windshield than to the to the bottom of the cover to improve air and debris (such as snow) flow. The support members are also pivotally coupled to both ends of the primary lever to improve the wiper blade efficiency.

Abstract: In a wider blade for use with the vehicular windshield wiper system, the wiper blade has an elongated spoiler on one side thereof. One longitudinal spoiler end which is farther from the wiper drive shaft is shaped as a first curved portion which is bent away from the wiper blade, and the other longitudinal spoiler end nearer to the wiper drive shaft is formed as a second curved portion bent toward the wiper blade to cover a part of the gap between the spoiler and the blade rubber, these first and second curved portions being smoothly joined together by a central curved portion. The spoiler has a concavely shaped first side surface and a second side surface which are substantially parallel to the blade rubber, the second side surface being between the first side surface and the blade rubber. Thereby, the blade rubber can be surely prevented from lifting from the window pane even at higher driving speeds.