Wiper Blade Adapter Side Plug-in Mechanism
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Solution Overview
Problem
Existing wiper blade adapter systems are complex and difficult for end users to assemble, especially when dealing with different types of wiper arm adapters, as they require various components and tools, and lack flexibility in accommodating multiple adapter systems.
Innovation Solution
A wiper blade adapter system with a side plug-in unit and fastening channel that allows for easy assembly and detachment of differently shaped connection units, including an intermediate element with latching mechanisms for secure mounting and pivoting, enabling compatibility with multiple wiper arm adapter types without additional tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple differently shaped connection units are provided for different wiper arm adapter types, then the adaptability of the wiper blade adapter system is improved, but the device complexity increases
Solution Approach 1:
The coupling unit is designed with a universal side plug-in unit that can accommodate multiple differently shaped connection units through a single standardized interface. This allows one coupling unit to serve multiple functions by accepting various connection unit types (first type with fastening pin and support plate, second type with elongated hook-shaped base body, third type with two back stops and fastening lug, fourth type with fastening recess and S-shaped profile, fifth type with fastening recess and walls with fastening means), thereby improving adaptability without proportionally increasing overall system complexity.
Solution Approach 2:
The wiper blade adapter system is divided into distinct modular components: the coupling unit with side plug-in unit, and multiple interchangeable connection units with differently shaped plug-in elements. This segmentation allows each connection unit to be independently designed for specific wiper arm adapter types while sharing a common coupling interface, making the system adaptable yet manageable in complexity.
2Ease of operation
If a side plug-in unit with receiving element and fastening channel is used, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The side plug-in unit incorporates a receiving element with a fastening channel that enables tool-free assembly. The plug-in element of the connection unit is guided into the receiving element through the fastening channel, which runs at least essentially parallel to the wiping direction. This self-guiding mechanism allows the assembly process to be performed by end users without additional tools, improving ease of operation despite the increased structural complexity of the coupling unit.
3Ease of manufacture
If the fastening channel has an essentially circular cross section for pivotal mounting, then the ease of manufacture is improved, but the reliability of the connection may be reduced
Solution Approach 1:
While the fastening channel has an essentially circular cross section for ease of manufacture and pivotal mounting, the connection is secured through asymmetric features: the plug-in element has a specific shape that fits into the receiving element, and latching mechanisms are positioned at specific locations around the circular channel. This combination allows simple circular geometry while maintaining secure, reliable connection through asymmetric engagement features.
Data Source
Figure 1
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AI summary
The invention relates to a wiper blade adapter system comprising a wiper blade adapter unit (10) having a coupling unit (18) and at least two connection units (12, 14, 16) that have different forms. According to the invention, the coupling unit (18) comprises a lateral plug-in unit that is provided for coupling to one of the at least two connection elements (12, 14, 16) in an assembly step.