Wiper Scraper Assembly Using Segmented Connection Strips
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Solution Overview
Problem
Existing wiper assemblies face difficulties in convenience due to interference between the snapping seat and scraper during assembly, making the process cumbersome.
Innovation Solution
A wiper design featuring a snapping seat, pair of elastic arms, connection strips, and a scraper, where the elastic arms are extended from the snapping seat, and the scraper is inserted into the connection strips with a block and spoiler covers to facilitate easy assembly, utilizing a groove rail and stoppers to secure the scraper in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the snapping seat is riveted on the elastic strip and the scraper is sheathed in the snapping seat, then the wiper can function properly, but the snapping seat is interfered with by the scraper during assembly making it inconvenient to assemble
Solution Approach 1:
The connection strip is divided into an upper part and a lower part that are separable. The lower part is connected to the elastic strip while the upper part receives the scraper. This segmentation allows the scraper to be installed first, followed by the connection strip, eliminating the interference problem in the original integrated design.
Solution Approach 2:
The scraper is pre-installed onto the connection strip before the connection strip is attached to the elastic strip. The stopper is also pre-positioned on the connection strip to guide and facilitate the scraper's insertion. This preliminary arrangement of components simplifies the overall assembly process by establishing a clear installation sequence.
2Reliability
If the scraper is sheathed in the snapping seat, then the scraper can be secured, but the interference between the snapping seat and scraper makes assembly cumbersome
Solution Approach 1:
The snapping function is extracted from the original snapping seat and transferred to a dedicated stopper component. The stopper is separately installed on the connection strip and engages with the scraper's corresponding feature. This extraction resolves the interference issue by separating the securing function from the connection structure.
Solution Approach 2:
The stopper acts as an intermediary component between the connection strip and the scraper. It provides a simple engagement mechanism that secures the scraper without requiring complex interference-fit arrangements, thereby simplifying the assembly operation while maintaining reliable securing.
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 assembly convenience by allowing the scraper to be easily inserted into the connection strips, reducing assembly complexity and ensuring proper alignment, thereby improving the overall assembly process.
Implementation Method 1
the elastic strip can press the scraper to abut against the glass with the elastic force
Data Source
AI summary
A wiper having a snapping seat, a pair of elastic arms and a pair of connection strips and a scraper is provided in this disclosure. One end of each elastic arm is connected to the snapping seat and the pair of elastic arms are respectively extended from the snapping seat in opposite directions. Two sides of each connection strip are respectively provided with a lower rail and the elastic arm is sheathed in the lower rail. An upper rail is disposed on a side of the scraper, and the upper rail is sheathed in the respective lower rails.