Wiper End Fitting Segmentation for Dry Blade Replacement
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Solution Overview
Problem
The existing windshield wiper systems face issues with leakages and contamination when replacing the squeegee blade, as the liquid feeding device is opened, allowing impurities to enter and complicating the replacement process, which can impair washing efficiency and pose a risk to the user.
Innovation Solution
A primary and secondary part end fitting system that blocks the liquid channeling device, allowing the squeegee blade to be easily removed and replaced without opening the liquid feeding system, preventing leaks and contamination by using a tubular sector and locking mechanism to secure the blade in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the squeegee blade is replaced by removing the end of the wiper, then the blade can be accessed and replaced, but the liquid feeding device becomes open causing leaks and impurity entry
Solution Approach 1:
The end fitting is divided into a first part (retaining the liquid channeling device) and a second part (removable cover), allowing the blade to be accessed and replaced while the first part remains sealed to prevent liquid leakage and impurity entry
Solution Approach 2:
The second part of the end fitting is extracted as a separate removable component, allowing users to remove only the necessary part for blade replacement while leaving the liquid feeding system intact and sealed in the first part
2Ease of operation
If the liquid feeding device is opened for blade replacement, then the blade can be accessed, but impurities enter the device blocking nozzles and impairing washing efficiency
Solution Approach 1:
The end fitting is segmented into a sealed first part containing the liquid channeling device and a removable second part, enabling blade access without opening the liquid feeding system, thus preventing nozzle blockage and maintaining washing efficiency
Solution Approach 2:
The first part of the end fitting acts as an intermediary structure that provides access to the blade through the removable second part while maintaining the seal of the liquid feeding device, preventing impurity entry and preserving system reliability
3Ease of operation
If the end fitting is opened for blade replacement, then the blade can be removed, but residual pressure projects liquid onto the user creating safety risks
Solution Approach 1:
The end fitting is divided into a sealed first part and a removable second part, allowing blade replacement while keeping the liquid channeling device closed, thereby preventing residual pressure from projecting liquid onto the user
Solution Approach 2:
Only the non-pressurized second part of the end fitting is removed for blade access, while the pressurized liquid feeding system remains intact and sealed in the first part, eliminating the hazard of liquid projection
Data Source
AI summary
The invention relates to a first part (12) and a second part (13) of an end piece (11) for a windshield wiper comprising at least one wiper blade (1). The first part (12) has a cavity (22) for accommodating the wiper blade (1), said cavity (22) extending along a longitudinal axis. The first part (12) also has a region that is arranged laterally in relation to the longitudinal axis and accommodates the second part (13) of the end piece (11), said region (14) comprising a tubular section (31). The second part (13) also has an attachment means for mechanically connecting the second part (13) to the region of the first part (12). The attachment means represents at least one hollow tubular portion, the periphery of which has a slit.