Windshield wiper blade assembly with elastic cushion joint for allowing spring-resistance rotation of wiper blade relative to windshield surface

In a windshield wiper blade assembly including an elongated wiper blade supported by a substantially rigid elongated support structure, at least one secondary yoke attached to said support structure, and a primary yoke connectable to an arm capable of driving the windshield wiper blade assembly across a windshield, the improvement comprising:

• (a) a pivot rod providing a pivotal connection of said primary yoke to said secondary yoke, said pivot rod further comprising a center portion received by said secondary yoke and a pair of opposite end portions extending in opposite directions away from opposite sides of said secondary yoke and away from said center portion, said end portions being received by said primary yoke, said center portion being spherical in shape and received by said secondary yoke at said pivotal connection of said primary yoke to said secondary yoke, said pivotal connection allowing axial and planar rotation of said secondary yoke with respect to said pivot rod and primary yoke about first and second perpendicular axes;
• and
• (b) an elastic side support means received on at least one of said opposite end portions of said pivot rod adjacent to at least one of said opposite sides of said secondary yoke, whereby said elastic side support means provides a spring resistance against said planar rotation of said secondary yoke with respect to said pivot rod and primary yoke.