Windshield Wiper Blade Outer Plug Mounting Mechanism
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Solution Overview
Problem
Existing windshield wiper blades face issues with securely mounting and retaining the squeegee, often leading to malfunctions due to material differences between the hard base and flexible deflection parts, and poor aesthetic appearance.
Innovation Solution
A windshield wiper blade design featuring an elastic member supporting a spoiler with a deflection part and a base part, where outer and inner plugs are used to securely engage the spoiler ends, providing a triangular cross-section configuration and projection pins to prevent displacement and enhance assembly, allowing for secure attachment and improved appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the squeegee is connected to the support member, then the squeegee can be mounted, but it is difficult to securely mount the squeegee
Solution Approach 1:
The support member is integrated directly into the spoiler structure, eliminating the need for separate mounting mechanisms. The squeegee is secured through the combined structural features of the spoiler and support member, achieving reliable mounting without additional complex components.
Solution Approach 2:
A retaining member with a groove is introduced as an intermediary component between the squeegee and the spoiler assembly. This groove-based retaining mechanism provides secure engagement while maintaining structural simplicity.
2Reliability
If the squeegee is integrally formed with the base part, then the mounting is simplified, but the squeegee may be separated from the base part during operation due to different materials
Solution Approach 1:
The spoiler is divided into distinct functional parts: a hard base part for structural support and a flexible deflection part for adaptive contact. This segmentation allows each part to be made from materials optimized for its specific function while maintaining overall structural integrity through the elastic member connection.
Solution Approach 2:
The spoiler combines different materials with different properties - a hard base part and a flexible deflection part - to achieve both structural stability and adaptive performance. The elastic member provides the flexible connection between these dissimilar materials, preventing separation during operation.
3Reliability
If the retaining member is made of the same flexible material as the deflection strip, then the material consistency is improved, but the squeegee cannot be securely held
Solution Approach 1:
The retaining member is positioned at specific critical locations where secure retention is needed, rather than requiring the entire structure to be made of rigid material. This allows the retaining member to provide localized rigid support while the rest of the spoiler maintains its flexible, homogeneous appearance and behavior.
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
The design ensures secure holding of the spoiler components, facilitating assembly and accommodating various driving arms, while maintaining an aesthetically pleasing appearance and preventing squeegee separation during operation.
Implementation Method 1
a spoiler (120) extending longitudinally and being supported by the elastic member (10), the spoiler including a deflection part (120a) disposed on the elastic member (10)
Implementation Method 2
outer plugs (200) coupled to opposite ends of the spoiler (120), the outer plugs (200) being partially fitted into the deflection part (120a) longitudinally and being partially engaged with the base part (110) longitudinally
Data Source
AI summary
A windshield wiper blade is provided, which includes a long elastic member extended longitudinally, a wiping lever member, a spoiler supported longitudinally by the elastic member, and having a deflection portion, on the upper side of the elastic member, which bends due to the wind pressure received when a vehicle is traveling, and a base portion, on the lower side of the elastic member, for fixing the wiping lever member, and an outer plug coupled to the longitudinal end of the spoiler. A part of the outer plug is attached to the deflection portion by being inserted longitudinally thereinto, and another part of the outer plug is attached to the base portion by being hooked to the longitudinal side thereof.