Windshield scrubber and blade wiping assembly

A vehicular window cleaning apparatus comprising:

• a windshield wiper assembly including a wiper arm, pivotal mounting means pivotally mounting a wiper blade to said wiper arm and drive means for driving said wiper arm and wiper blade across a windshield,
• a scrubber for intensifying the cleaning effort of said wiper blade,
• a coupling for detachably clamping said scrubber to said wiper blade for movement therewith,
• an adjustment means for rotating said wiper blade relative to said wiper arm to selectively and sequentially position said wiper blade and scrubber against said windshield, and
• a locking means comprising an over center toggle for interconnecting said wiper arm with said wiper blade for locking one of said wiper blade and scrubber of said window cleaning apparatus in contact with the associated windshield,
• said toggle comprises a pair of toggle links one pivotally connected at one of its ends to the center of the other link, with its other end connected to said wiper blade,
• one of the ends of said other of said links being connected to said adjustment means and its other end being connected to said wiper arm,
• such that when said wiper blade is in contact with a windshield said over center toggle is in a first locked position and when said over center toggle is actuated to a second position by said adjustment means said scrubber is in a second locked position in contact with said windshield.