Windshield Wiper Arm Attachment via Elastic Blocking
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Solution Overview
Problem
Existing windshield wiper structures experience loose attachment of the driven wiper arm over time, leading to inadequate contact between the wiper blades and the vehicle window, resulting in a suboptimal wiping effect.
Innovation Solution
A windshield wiper assembling structure featuring a hook arm on the fixing stage, an assembling stage with a through groove and elastic blocking slice, and a positioning stage with a cover cap and positioning arm, which securely fastens the driven wiper arm to prevent loose attachment and ensure tight contact between the wiper blades and the window.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driven wiper arm is combined with the assembling stage using embedding or engaging structure, then the initial attachment is achieved, but loose attachment occurs after a period of time
Solution Approach 1:
The elastic blocking slice is designed to be deformable, allowing it to dynamically adjust its blocking force. When the positioning arm slides into the through groove, the elastic blocking slice deforms to accommodate the positioning arm, then rebounds to provide continuous blocking force, preventing loose attachment over time while maintaining stable combination.
Solution Approach 2:
The elastic blocking slice changes its physical state from a relaxed position to a deformed blocking position. The elastic material undergoes parameter changes in shape and position, transforming from a non-blocking state to an active blocking state that prevents the positioning arm from disengaging, thereby ensuring long-term attachment reliability.
2Stability of the object's composition
If the driven wiper arm is firmly combined to prevent loose attachment, then attachment stability is improved, but the structure becomes more complex
Solution Approach 1:
The positioning arm and elastic blocking slice are integrated into a single positioning stage assembly. The positioning arm provides the sliding connection while the elastic blocking slice provides the retaining function, combining two functions (positioning and retaining) into one integrated component structure, thereby minimizing overall complexity.
Solution Approach 2:
The elastic blocking slice automatically performs the retaining function through its own elastic deformation without requiring additional actuators or complex mechanisms. When the positioning arm is inserted, the elastic blocking slice self-activates to block the through groove, providing automatic retention without external intervention or complex control systems.
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 solution provides a firm combination of the driven wiper arm with the assembling structure, ensuring the wiper blades maintain tight contact with the vehicle window, enhancing the wiping effectiveness and reliability of the windshield wiper.
Implementation Method 1
an elastic blocking slice which is arranged in a route of the through groove
Data Source
AI summary
A windshield wiper assembling structure for preventing loose attachment of a driven wiper arm assembles the driven wiper arm having a hook arm on a windshield wiper fixing stage. The windshield wiper assembling structure includes an assembling stage and a positioning stage. The assembling stage has a through groove, an elastic blocking slice, and a first fastening groove which is formed at one side edge of the elastic blocking slice. The first fastening groove fastens on the windshield wiper fixing stage. The assembling stage has a containing groove on a top surface thereof to accommodate the hook arm. The positioning stage has a cover cap and a positioning arm which is extended from the cover cap. The positioning arm has a second fastening groove corresponding to the first fastening groove. The second fastening groove fastens on the windshield wiper fixing stage and corresponding to the first fastening groove.