| 摘要 |
<p>In a preferred form, this disclosure relates to a windshield wiper apparatus which is operable to reciprocate a windshield wiper in a generally horizontal path across the windshield while maintaining the wiper in a generally vertical disposition during running operation and which is operable to park the same in a generally horizontal position adjacent the lower edge of the windshield when wiper operation is being terminated. The windshield wiping apparatus includes a stationary support means, a lever means pivotally supported at one end by the support means and which is adapted to be swung to and fro for reciprocably moving a wiper pivotally connected to its other end through first and second strokes across the windshield, a first drive means operatively connected with the wiper for simultaneously rotating the wiper relative to the lever means to increase the stroke length in response to swinging movement being imparted to the lever means, a second drive means for moving an articulating means relative to the lever means to maintain the wiper blade assembly in a generally vertical disposition as it moves through its strokes, and a parking mechanism which is operable to permit the wiper and articulating means to move relative to the lever means as the latter is swung to and fro during running operation and which is operable to prevent relative movement therebetween when the wiper is midway through one of its strokes when running operation is being terminated to effect movement of the wiper from a generally vertical disposition to a generally horizontal park position adjacent the lower edge of the windshield.</p> |
