Wiper Blade Adapter With Detachable Spray Unit
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Solution Overview
Problem
Existing wiper blade adapters for motor vehicle windshield wiper devices do not provide a uniform distribution of cleaning liquid on the window and lack easy replacement and mounting options.
Innovation Solution
A wiper blade adapter with a detachable spray unit, featuring a spring-elastic locking mechanism and longitudinal guide elements for easy assembly and disassembly, and multiple spray openings that distribute liquid in various directions for improved coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a spray unit is integrated into the wiper blade adapter, then liquid distribution uniformity is improved, but device complexity increases
Solution Approach 1:
The spray unit is designed as a detachable module that can be separated from the base body. This segmentation allows the spray function to be added without permanently increasing the complexity of the main adapter structure, while still achieving uniform liquid distribution through multiple spray openings arranged in different directions.
Solution Approach 2:
The base body is designed with universal mounting features (longitudinal guide elements and locking means) that can accommodate different spray unit configurations. This multi-functionality allows the same base body to work with various spray unit designs, maintaining liquid distribution uniformity without proportionally increasing overall device complexity.
2Ease of operation
If the spray unit is made detachable, then ease of operation is improved, but reliability deteriorates
Solution Approach 1:
The locking means uses spring-elastic elements that can dynamically adjust during assembly and disassembly. The spring-elastic locking means can be easily engaged and disengaged by manual operation, providing both ease of replacement and reliable connection through the elastic locking action that maintains firm attachment during use.
3Ease of operation
If longitudinal guide elements are added, then ease of operation is improved, but manufacturing cost increases
Solution Approach 1:
The longitudinal guide elements are integrated into the base body structure rather than being separate components. This merging of functions allows the guide elements to be manufactured together with the base body in a single molding process, reducing overall manufacturing cost while still providing the guiding function for easy assembly.
4Manufacturing precision
If multiple spray openings with different spray directions are provided, then liquid distribution uniformity is improved, but device complexity increases
Solution Approach 1:
Different spray openings are positioned at specific locations on the spray unit with tailored spray directions (including angles of at least 30° between directions and at least 70° to the window surface in operating state). This local optimization of spray characteristics achieves uniform liquid distribution across the window without requiring complex overall spray unit design.
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 adapter ensures a uniform and precise distribution of cleaning liquid on the windshield, allowing for easy replacement and installation without tools, enhancing cleaning efficiency and versatility.
Implementation Method 1
a latching means (16, 30) which is intended to connect the base body (12) to the spray unit (10)... a spring-elastic means for producing a latching connection, which is intended to be elastically deflected during assembly
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a wiper blade adapter, in particular for a motor vehicle windshield wiper device, comprising a main body (12). According to the invention, the wiper blade adapter comprises a spraying unit (10), which is arranged on the main body (12) and designed to spray a liquid onto a motor vehicle windshield (64).