| 摘要 |
The present invention is to provide a joint apparatus of car windshield wiper arm, which comprises a upper cover body and a chassis; wherein said upper cover body having a round groove cut with V-shaped cross-section is concaved near the bottom side of the front side; a guiding gap is concaved between said front top surface and said rear top surface; a horizontal round groove receptacle and a vertical hollow socket are respectively created at said guiding gap; a horizontal elastic embed hook is built at the center between said rear side; and said chassis having a pair of parallel and symmetrical left plate and right plate are upwards built at the front section, and a horizontal fixing pivot is bridged near the front end; an upright curbing plate is upwards formed in the middle section of the bottom plate; a insetting hole is perforated at the center of the rear plate. By means of the round groove cut of the upper cover body and the fixing pivot on the chassis being intimately engaged each other to serve as a pivot, as well as the horizontal elastic embed hook of the upper cover body and the insetting hole on the chassis being inset each other respectively, thus, the insetting securely in rigging assembly or the dismantling in replacement of wiper arm with curbing head to or from between the joint apparatus of the wiper can be quickly accomplished.
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