A rotating window wiper arm having a pair of semi-cylindrical elements one of which being coaxially mounted on the distal portion of a windshield wiper arm and the other being attached to said windshield wiper functioning to provide an inexpensive and novel connection being adaptively utilized on old and new vehicles preventing wiper hopping and skipping across said windshield resulting in a clean wipe in both directions of movement.
A wiper blade (10) is proposed that is used to clean windows (26) of motor vehicles. The wiper blade (10) has an elongated, rubber-elastic wiper strip (14), which can be pressed against the window (26) to be wiped and is held substantially parallel to the longitudinal axis on an elongated, spring-elastic support element (12), to whose middle portion, remote from the window (26), a connection device (16) for counterpart connection means of a driven wiper arm, which means can be loaded toward the window (26), are disposed. Problem-free, economical disposition of the connection device (16) on the support element (12) is obtained if the connection device is embodied as a separate component and secured to the support element by means of a welded connection.
A wiper blade for motor vehicle windows has an elongated spring-elastic support element, an elongated, rubber elastic wiper strip which is pressable against a window to be wiped and is held substantially parallel to a longitudinal axis by the elongated, spring-elastic support element, a connection device for a driven wiper arm, the connection device being loaded toward the window and secured to a middle portion of the spring-elastic support element, remote from the window, the connection device being formed as a component which is separate from the support element, and a welding connection which connects the connection device with the support element, the support element being band-shaped, the connection device having a base resting flatly on a side remote from the window of the band-shaped support element and connected to the band-shaped supporting element by the welding connection.
A windshield wiper blade assembly equipped with a combination of tilting secondary yokes (38) and airflow deflectors (44) articulated thereon, to provide smooth operation and wind lift resistance at a broad range of driving speeds. Wiper blade assembly (24) is mounted on a distal end of a wiper arm (22) and is driven in a reciprocating motion across a windshield (20). The wiper blade assembly has a wiping element (46) attached to a supporting structure that includes a main yoke (34), two secondary yokes (38) and possibly tertiary yokes (40). Dual-pivot hinges (42) are introduced between main yoke (34) and secondary yokes (36) of the wiper blade. As wiper blade (24) sweeps across windshield (20), the friction force causes limited tilting or canting of the tilting substructure, which includes secondary yokes (38), tertiary yokes (40) and wiping element (46). The tilting produces desirable chatter-resistant angle of attack and reduces squeak. The tilt angle is generally different for each sweep direction. Airflow deflectors (44) are attached to the tilting substructure, generally on the opposite side of the longitudinal pivot axis than wiping element (46). The airflow deflectors produce aerodynamic forces that counterbalance the airflow pressure on wiping element (46), thereby preventing the wiper from being flipped to the undesirable angle of attack by the airflow. Thus, chatter and squeak is prevented at a broad range of driving speeds. Additionally, the airflow deflectors prevent wiper blade liftoff. In an alternative embodiment, one longitudinal pivot hinge (200) is introduced at the connection between main yoke (34) and wiper arm (22). The longitudinal pivot hinge is combined with main yoke airflow deflector (204) and secondary yoke airflow deflectors (206), to accomplish the same results as the primary embodiment.
