Wiper Blade Adapter Distributor Element Form-Fitting Geometry

The patent extracts the bearing contact elements (elevations, protrusions) from the distributor element design. Instead of having bearing extensions protrude from the distributor element to engage with the adapter element, the solution removes these protruding elements and replaces them with recesses that receive bearing extensions from the adapter element. This extraction eliminates the need for complex bearing contact structures on the distributor element while maintaining rotational position stability.

The patent inverts the traditional bearing contact arrangement. Conventionally, the distributor element has protruding bearing extensions that engage with recesses in the adapter element. The patent reverses this by having the adapter element provide the bearing extensions and the distributor element provide the recesses. This inversion simplifies the distributor element structure and increases installation space while maintaining the form-fitting geometry for fixed rotational positioning.

The patent extracts the bearing extensions from the distributor element and relocates them to the adapter element. The distributor element now only has recesses that receive the bearing extensions, eliminating the need for protruding structures. This extraction increases the installation space and structural flexibility of the distributor element while the adapter element maintains the precise form-fitting geometry through its bearing extensions.

The bearing extensions act as intermediary elements that mediate the connection between the adapter element and the distributor element. By placing the bearing extensions on the adapter element side, the patent creates a clearer separation of functions: the adapter element provides the positioning structure, and the distributor element provides the receiving structure. This intermediary arrangement optimizes both rotational angle precision and installation space.