Universal Wiper Blade Adaptor With Secure Multi-Arm Locking
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Solution Overview
Problem
Existing wiper blade adaptors fail to securely fasten different types of wiper arms while maintaining stability against windage resistance, requiring multiple adaptors for various arm shapes and leading to decreased cleaning performance over time.
Innovation Solution
A versatile adaptor with a body portion that can couple to multiple wiper arm types, featuring a locking mechanism with a restriction protrusion and groove system, elastic legs, and a spacer portion to accommodate varying arm widths, ensuring secure fastening and easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single adaptor design is used for multiple wiper arm types, then adaptability is improved, but fastening reliability deteriorates due to varying arm shapes and windage resistance
Solution Approach 1:
The adaptor body is designed with a universal interface that can accommodate multiple wiper arm types through a standardized coupling mechanism, allowing one adaptor design to serve multiple functions across different arm configurations
Solution Approach 2:
The locking mechanism is extracted as a separate functional component that can independently engage with different arm types, separating the universal coupling function from the specific locking geometry to maintain reliability across variations
2Reliability
If a complex locking mechanism is implemented to secure various arm types, then fastening reliability is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is segmented into distinct functional elements (locking protrusion, locking groove, elastic leg) that operate independently but coordinate together, allowing each segment to be optimized for its specific function while maintaining overall simplicity
Solution Approach 2:
The elastic leg automatically engages and disengages the locking protrusion through its own elastic deformation, eliminating the need for additional actuators or complex control mechanisms while ensuring reliable locking
3Device complexity
If the groove is positioned closer to the restriction protrusion for compact design, then device complexity is reduced, but ease of operation deteriorates due to difficult assembly
Solution Approach 1:
The groove is pre-positioned at an optimal distance from the restriction protrusion to provide sufficient guide path length for the locking protrusion, ensuring smooth assembly before final locking engagement occurs
4Ease of operation
If the guide path is made longer for easier assembly, then ease of operation is improved, but device complexity increases due to larger adaptor size
Solution Approach 1:
The guide path utilizes three-dimensional spatial arrangement rather than simple linear extension, allowing the locking protrusion to follow a compact curved trajectory that provides sufficient guidance while minimizing overall adaptor dimensions
Data Source
AI summary
Provided are an adaptor for assembling a wiper blade, a wiper blade assembly, and a wiper device. The adaptor for assembling a wiper blade, which is configured to couple the wiper blade to two or more types of wiper arms, includes a body portion coupled to the wiper blade and to which a first type wiper arm is coupled horizontally or to which a second type wiper arm is coupled vertically and a locking portion rotatable provided on the body portion to cover a front end of the wiper arm.