Windshield Wiper End Piece Segmentation for Dry Blade Replacement
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Solution Overview
Problem
The existing windscreen wiper systems face issues during scraper blade replacement, as the liquid supply device is open, leading to leaks and clogging, and the process is complicated by the presence of liquid, which can splash and make reassembly difficult, and requires opening the fluid pipes.
Innovation Solution
An end piece comprising two distinct parts connected by a removable fixing means, allowing for simple and ergonomic disassembly and reassembly without opening the windscreen washer fluid pipes, featuring a primary part with a housing and a secondary part with a locking mechanism that blocks translational movements, ensuring secure attachment and preventing liquid leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the liquid supply device is opened to replace the scraper blade, then the blade can be accessed and replaced, but liquid leaks and impurities enter the device causing nozzle clogging
Solution Approach 1:
The end piece is divided into a first part (containing the housing and recess) and a second part (containing the locking means), connected by a removable fixing means. This segmentation allows the second part to be removed for blade replacement while the first part remains attached to the support, keeping the liquid supply device closed and preventing leaks and contamination.
2Ease of repair
If the liquid supply device is opened during blade replacement, then the blade can be replaced, but liquid splashes onto the user and complicates the replacement process
Solution Approach 1:
The end piece is segmented into two parts where the second part can be independently removed. This allows users to access and replace the scraper blade while the first part remains attached to the support, keeping the liquid supply device closed and preventing liquid splashing, thereby maintaining ergonomic and clean replacement operation.
3Device complexity
If the end piece is made as a single piece, then the structure is simple, but the blade replacement requires opening the fluid pipes which is complex and problematic
Solution Approach 1:
The end piece is divided into a first part (housing with recess) and a second part (locking means), connected by a removable fixing means. This segmentation enables the second part to be easily removed for blade replacement while maintaining a relatively simple overall structure, avoiding the complexity of opening fluid pipes.
Solution Approach 2:
The end piece transitions from a static single-piece structure to a dynamic two-part structure with removable connection. This allows the end piece to adapt between a closed state (during normal operation) and an open state (during blade replacement), facilitating easy maintenance while preserving structural simplicity.
Data Source
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AI summary
The invention relates to an end piece (11) of a windshield wiper comprising at least one spring strip (5) and a wiper blade (1). The end piece (11) has a first part (12) and a second part (13). The first part (12) includes a recess for accommodating the spring strip (5), a cavity for accommodating the wiper blade (1), and a hole (28) that is in communication with the recess and the cavity. The second part (13) includes a locking means for blocking the end piece (11) relative to the wiper, said locking means extending inside the hole (28). The first part (12) and the second part (13) are connected to each other by a removable attachment means (14). The end piece is for use in motor vehicles.