Windshield Wiper Connector Snap-Fit Assembly
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Solution Overview
Problem
Current windshield wipers have complex and costly assembly structures due to the connection between the adapter and connector, leading to high manufacturing costs and fragile connections, requiring replacement of the entire wiper if the connector is damaged.
Innovation Solution
A windshield wiper design featuring a connector with a spring plate and slots, a steel blade with holes, and a sleeve with slots, along with a snap-fit connection mechanism using ball-shaped points and hooks, simplifying assembly and enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the connector and adapter are integrated into an all-in-one structure, then the assembling process is simplified, but the connector becomes more fragile and replacement costs increase
Solution Approach 1:
The patent divides the connector into separate components: a main connector body and an adapter that can be independently replaced. This segmentation allows the adapter to be replaced without replacing the entire connector assembly, reducing repair costs while maintaining a relatively simple overall structure.
2Adaptability or versatility
If multiple arm joints are used to couple the steel blade and connector, then the connection is more flexible, but the manufacturing cost increases and connection strength decreases
Solution Approach 1:
The patent removes the complex multi-joint arm coupling mechanism and replaces it with a direct connection system using a single arm that couples the steel blade to the connector body. This extraction of unnecessary components reduces manufacturing cost and simplifies the structure while maintaining adequate connection flexibility through the hinge mechanism.
3Strength
If the adapter and connector have complex assembling processes, then the connection may be stronger, but the assembly time and complexity increase
Solution Approach 1:
The adapter is pre-equipped with positioning structures including positioning protrusions and positioning grooves that align with corresponding features on the connector body. This preliminary preparation of alignment features enables quick and accurate assembly without complex procedures, reducing assembly time while ensuring proper positioning for adequate connection strength.
Data Source
AI summary
A windshield wiper comprising: a connector, an adapter, a steel blade, a rubber blade, a retainer, a retainer cover, and a sleeve; the connector having a third slot and a spring plate; the steel blade having holes disposed; the steel blade passing through the third slot, so that the steel blade is coupled with the third slot, and the spring plate is coupled with the holes; the connector and the adapter have multiple engaging components, so that the connector can combine together with the adapter by snap-fit connection. Therefore, the windshield wiper of the present invention has simple structure and secure assembly, not only reducing the production cost, but also easing maintenance.