Pivotable Wiper Cover Unit for Secure Blade Access
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Solution Overview
Problem
Existing window wiper devices face challenges in ensuring reliable operation and easy installation/removal of wiper blades, particularly due to automatic adjustment issues and unintended deflection of cover units.
Innovation Solution
A wiper device design featuring a cover unit that is pivotable and displaceable between locked and unlocked positions, with a secure attachment mechanism to prevent unintended opening and facilitate manual handling, allowing for simple and rapid installation/removal of wiper blades.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cover unit is made pivotable to allow access for wiper blade installation, then ease of operation is improved, but reliability deteriorates due to unintended deflection and automatic adjustment issues
Solution Approach 1:
The cover unit is designed with dynamic positioning capability, allowing it to pivot between a closed position (covering the adapter) and an open position (exposing the adapter for wiper blade installation). This dynamic feature improves ease of operation while maintaining reliability through controlled movement mechanisms.
Solution Approach 2:
The cover unit is separated from the main wiper arm structure, allowing independent movement and positioning. This segmentation enables the cover to be opened only when needed for wiper blade installation, preventing unintended deflection while maintaining access capability.
2Reliability
If the cover unit is made displaceable between locked and unlocked positions, then reliability is improved by preventing unintended opening, but device complexity increases
Solution Approach 1:
The locking function is extracted as a distinct feature of the cover unit, with dedicated locking and unlocking positions. This separation of locking functionality from the main cover structure achieves reliable prevention of unintended opening while keeping the overall device design manageable.
3Object-affected harmful factors
If the cover unit fully covers the wiper arm adapter, then protection is improved, but ease of operation deteriorates due to reduced accessibility
Solution Approach 1:
The cover unit transitions from a static covering structure to a dynamic component that can pivot between closed and open positions. When closed, it provides full protection of the wiper arm adapter; when opened, it exposes the adapter for installation operations, thus resolving the contradiction between protection and accessibility.
Data Source
AI summary
A wiper device (10) having a wiper arm adapter (16) and having a cover unit (30) which is mounted on the wiper arm adapter (16) so as to be pivotable about a pivot axis (36) between an open position (34) and a closed position (32) and which, in the closed position (32), at least partially covers the wiper arm adapter (16) in relation to an environment. The cover unit (30), in the closed position (32), is displaceable translationally between an unlocked position (38) and a locked position (40).