Windshield Wiper Assembly with Nested End Cap and Outer Plug
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Solution Overview
Problem
Existing windshield wiper assemblies often experience poor operation due to the wiping rubber member not being securely held, leading to inefficiencies in wiping foreign matter from windshields.
Innovation Solution
A windshield wiper assembly featuring a bendable elastic member supporting a spoiler with a deflection part that deforms under wind pressure, and an outer plug and end cap that securely hold the base part, preventing the wiping rubber member from moving relative to the base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wiping rubber member is not securely held by the spoiler, then the structure is simpler and easier to manufacture, but the wiping efficiency deteriorates due to poor operation and movement of the wiping rubber member
Solution Approach 1:
The spoiler is divided into a base part and a deflection part that are integrally formed, allowing each part to perform its specific function independently. The base part provides structural support while the deflection part responds to wind pressure, enabling secure holding of the wiping rubber member without excessive overall complexity
Solution Approach 2:
The outer plug and end cap are nested together to form a secure holding structure for the base part. The base part extends through the outer plug and is inserted into the end cap, creating a nested arrangement that firmly secures the wiping rubber member in place
2Stability of the object's composition
If the base part is not securely fixed, then the assembly process is simpler, but the wiping rubber member moves relative to the base part causing poor operation
Solution Approach 1:
The base part extends through the outer plug and is inserted into the end cap, creating a nested structure where the outer plug and end cap work together to securely hold the base part. This nested arrangement provides stable positioning of the wiping rubber member while maintaining a relatively simple assembly process
Solution Approach 2:
The outer plug acts as an intermediary component between the base part and the end cap. It provides a transition structure that facilitates the secure connection of the base part to the end cap, ensuring stable positioning without requiring complex assembly operations
3Reliability
If the spoiler structure is simplified without outer plug and end cap, then manufacturing is easier, but the wiping rubber member separates from the base part reducing wiping effectiveness
Solution Approach 1:
The outer plug and end cap are coupled together in a nested arrangement to form a secure holding structure for the base part. This nested design provides reliable attachment of the wiping rubber member while maintaining a relatively simple manufacturing process using common fastening components
Solution Approach 2:
The outer plug and end cap work together as a combined securing mechanism for the base part. Their integrated function provides reliable attachment of the wiping rubber member, with both components contributing to the overall security of the assembly
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances the wiping efficiency by ensuring the wiping rubber member remains securely attached to the base, preventing separation and improving the effectiveness of wiping foreign matter from the windshield.
Implementation Method 1
a bendable elastic member (20) supporting a spoiler (30)
Implementation Method 2
a deflection part configured to be deformed by pressure of wind applied while the vehicle is being driven
Data Source
AI summary
Disclosed herein is a windshield wiper assembly that is capable of securely holding a spoiler, thereby preventing poor operation of a wiping rubber member. In the windshield wiper assembly, a base part, formed at one end of the spoiler to support the wiping rubber member, is inserted into an end cap through an outer plug.