Wiper Arm Adapter Element for Perpendicular Assembly
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Solution Overview
Problem
Existing wiper arm designs for windscreen wiper systems complicate the assembly and disassembly process by requiring hydraulic or electrical connections to be made in the longitudinal direction, making it difficult to separate the wiper blade from the wiper arm without additional manual effort.
Innovation Solution
A wiper arm design that allows for a secure form-fitting connection between the securing element and the wiper blade adapter, enabling hydraulic or electrical coupling during assembly and easy separation during disassembly, with the securing element's movement controlling the connection and disconnection, allowing for perpendicular assembly and disassembly of the wiper blade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydraulic or electrical connections are made in the longitudinal direction of the wiper arm, then the connection is secure and reliable, but the assembly and disassembly process becomes complicated and requires additional manual effort
Solution Approach 1:
The patent combines the hydraulic/electrical connection function with the mechanical securing function into a single integrated adapter element. The adapter element includes both the electrical connector and hydraulic connector, allowing all connections to be made simultaneously through one attachment action, eliminating the need for separate manual connection steps and simplifying the assembly/disassembly process while maintaining secure connections
Solution Approach 2:
The adapter element serves multiple functions simultaneously: it provides electrical connection, hydraulic connection, and mechanical securing of the wiper blade to the wiper arm. This multi-functional design allows a single component to handle all connection requirements, making the assembly process simpler while ensuring reliable electrical and hydraulic connections
2Ease of operation
If the securing element is moved to control hydraulic or electrical coupling, then the assembly process is simplified, but the mechanism becomes more complex
Solution Approach 1:
The adapter element is designed with movable components that allow it to transition between different positions: a first position where electrical and hydraulic connections are engaged, and a second position where they are disengaged. This dynamic design enables the single movement of the securing element to automatically control both the mechanical securing and the hydraulic/electrical coupling, simplifying operation while the internal movement mechanisms manage the complexity
Data Source
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AI summary
The invention relates to a wiper arm (10) for a windscreen wiper system of a motor vehicle. Said wiper arm comprises a receiving area (11) for a wiper frame adapter (55) consisting of several wiper frame adapter elements (56; 56a, 57; 57a, 58). Said wiper arm (10) comprises a protection element (65, 65a) which at least partially covers the receiving area (11), said protection element being designed in such a way that it can be moved between a dismounting position, in which the wiper frame adapter (55) is removed from the receiving area (11) and a locked position in which the wiper frame adapter (55) is maintained in the receiving area (11). An adapter element (75) used to guide washing fluid and/or supply power is arranged in the receiving area (11). Said adapter element (75) can be connected on one side to a supply line (32) for the washing fluid and/or to an electric line (79) and on the other side comprises an outlet (77) for said washing fluid and/or an plug connection (78) for the electric line (79), said outlet (77) and/or the plug connection (78) can be connected to a first wiper frame adapter element (56, 56a).