Multi-section Windshield Wiper Buckling Assembly
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Solution Overview
Problem
The existing multi-section windshield wiper structures face challenges with complex and time-consuming assembly due to pivotally connecting means, leading to increased production costs and potential loosening during operation, which affects the convenience and stability of the cleaning process.
Innovation Solution
A multi-section windshield wiper design featuring a fastening rack with lateral fins, elastic arms, pressing sets, and buckling sets that securely combine the pressing sheet with the elastic arm using a fastening bolt seat and inserting member, providing a stable and rapid assembly with enhanced latching and positioning, and reinforced pressing strips for uniform force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pivotally connecting means are used to combine supports with fastening rack, then the structure can achieve movement and flexibility, but the assembly process becomes complicated and time-consuming, increasing production cost
Solution Approach 1:
The wiper blade is divided into multiple sections with individual supports that can be independently assembled to the elastic arm, allowing each segment to be separately manufactured and connected through simple buckling sets rather than complex pivotal connections
Solution Approach 2:
The buckling set features a nested structure where the fastening bolt seat and inserting member fit together in a compact arrangement, with the inserting member penetrating through the fastening bolt seat to create a space-efficient connection mechanism that simplifies assembly
2Ease of manufacture
If rotatably buckling means are used to combine supports with fastening rack, then assembly is simplified, but the connection may loosen during swinging process, reducing operational stability
Solution Approach 1:
The fastening bolt seat and inserting member are designed with pre-positioned features that guide the assembly process, ensuring proper alignment and engagement before final tightening, which prevents misalignment and reduces the risk of loosening during operation
Solution Approach 2:
The traditional rotatable buckling mechanism is replaced with a friction-based friction-welding like connection where the inserting member penetrates the fastening bolt seat and relies on friction and geometric interlocking to maintain stability during swinging, eliminating complex rotational joints
3Manufacturing precision
If multiple supports are added to achieve multi-section pressing, then the cleaning effect is improved, but the number of parts increases, making assembly more complex
Solution Approach 1:
Multiple pressing functions are merged into a single integrated elastic arm structure that naturally provides multi-point contact with the glass through its curvature and flexibility, eliminating the need for separate mechanical supports while maintaining uniform pressing force across the wiper blade
Solution Approach 2:
The elastic arm's physical parameters such as curvature radius, thickness distribution, and material elasticity are optimized to provide inherent multi-section pressing capability, allowing the single component to perform the function of multiple rigid supports through controlled deformation during operation
Data Source
AI summary
The present disclosure relates to a windshield wiper. A fastening rack has a fastening seat and lateral fins. The elastic arms are disposed on the lateral fins and have a plurality of openings. The pressing sets are combined with the elastic arms, each pressing set has a pressing sheet and a buckling set, the pressing sheet is formed with an opening slot, the buckling set has a fastening bolt seat and an inserting member, the fastening bolt seat penetrates the opening and the opening slot, the inserting member penetrates the fastening bolt seat, the fastening bolt seat and the inserting member are mutually buckled to clamp the elastic arm and the pressing sheet. Thus, the pressing sheet is combined with the elastic arm and prevented from being loosened.