Wiper Rail Assembly Structure to Avoid Scraper Interference
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Solution Overview
Problem
Existing wiper designs face difficulties in assembly due to interference between the snapping seat and scraper, making the process inconvenient.
Innovation Solution
A wiper design featuring a snapping seat, pair of elastic arms, connection strips with lower and upper rails, and spoiler covers, where the scraper is conveniently inserted between the connection strips, and stoppers prevent the scraper from falling, allowing for easier assembly and improved elasticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the snapping seat is riveted on the elastic strip first and the scraper is sheathed in the snapping seat, then the wiper can be assembled, but the snapping seat is interfered with by the scraper during sheathing making assembly inconvenient
Solution Approach 1:
The connection structure is segmented into separate components: the elastic arm with connection strips forms one segment, the snapping seat forms another segment, and the scraper with upper rail forms a third segment. This segmentation allows each component to be prepared independently and assembled in a convenient sequence without interference, specifically allowing the scraper to be installed first followed by the elastic arm assembly.
Solution Approach 2:
The elastic arms are pre-connected to the snapping seat before final assembly with the scraper. This preliminary connection establishes the structural framework first, creating clear pathways (lower rails) that guide the subsequent installation of the scraper, thereby preventing interference during the assembly process.
2Reliability
If the scraper is sheathed in the snapping seat, then the wiper structure is complete, but the snapping seat structure interferes with the scraper insertion making assembly difficult
Solution Approach 1:
The lower rail acts as an intermediary guiding structure that facilitates the insertion of the scraper into the snapping seat. The lower rail provides a clear pathway that mediates between the scraper and the snapping seat, eliminating direct interference and enabling smooth assembly.
Solution Approach 2:
The connection structure utilizes a three-dimensional rail system with lower rails extending from the snapping seat and upper rails on the scraper. This dimensional arrangement creates vertical and horizontal pathways that allow the scraper to be inserted from a direction that avoids interference with the snapping seat structure.
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 facilitates easier assembly and enhances the wiper's elasticity by allowing separate connection of elastic arms to the snapping seat and connection strips, preventing interference and ensuring smooth operation.
Implementation Method 1
the elastic strip can press the scraper to abut against the glass with the elastic force
Data Source
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AI summary
A wiper having a snapping seat (100), a pair of elastic arms (200) and a pair of connection strips (300) and a scraper (400) is provided in this disclosure. One end of each elastic arm (200) is connected to the snapping seat (100) and the pair of elastic arms (200) are respectively extended from the snapping seat (100) in opposite directions. Two sides of each connection strip (300) are respectively provided with a lower rail (320) and the elastic arm (200) is sheathed in the lower rail (320). An upper rail (420) is disposed on a side of the scraper (400), and the upper rail (420) is sheathed in the respective lower rails (320).