Windscreen Wiper Device Direct Mounting Head
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Solution Overview
Problem
Existing windscreen wiper devices for vehicles are complex and costly due to multiple parts, requiring specialized machinery and tools, which increases production expenses and can lead to wear and reduced wiping efficiency.
Innovation Solution
A simplified windscreen wiper device design that eliminates the intermediate oscillating arm, directly connecting the wiper blade to the mounting head using a snap connection mechanism, reducing parts and manufacturing costs while enhancing wiping performance by mounting the blade closer to the windshield and providing a strong, torque-resistant connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an intermediate oscillating arm is used to connect the mounting head and wiper blade, then the structure can provide articulation and movement, but the device complexity increases and manufacturing costs rise
Solution Approach 1:
The patent removes the intermediate oscillating arm from the wiper device structure. By extracting this complex component, the design achieves direct connection between the mounting head and wiper blade, eliminating unnecessary parts while maintaining the essential articulation function through the connecting device's integrated design
Solution Approach 2:
The patent combines the functions of the mounting head, connecting mechanism, and wiper blade support into a single integrated mounting head assembly. The connecting device is formed as one piece with the mounting head, merging multiple components into one that performs both mounting and articulation functions
2Ease of operation
If multiple complex parts are used in the wiper device, then articulation and movement are achieved, but manufacturing expenses increase due to specialized machinery and tools
Solution Approach 1:
The mounting head and connecting device are formed as a single integrated component, eliminating the need for separate oscillating arms and multiple connection mechanisms. This consolidation reduces the number of parts requiring specialized manufacturing equipment and assembly tools
Solution Approach 2:
By removing the intermediate oscillating arm and its associated complex connection mechanisms, the patent simplifies the manufacturing process. The direct connection design requires fewer specialized machining operations and assembly steps, reducing overall manufacturing expenses
3Ease of operation
If an intermediate oscillating arm is used, then movement is transmitted to the wiper blade, but wear occurs at the articulation points reducing reliability
Solution Approach 1:
The patent eliminates the intermediate oscillating arm and its pivot connections, removing the articulation points that are subject to wear. By establishing direct connection between the mounting head and wiper blade, the design eliminates the wear-prone pivot pins and bearing surfaces
Solution Approach 2:
The integrated mounting head design combines the mounting function and movement transmission in a single rigid structure, eliminating separate articulation joints. This merger removes the wear interfaces between multiple components while maintaining the necessary oscillating motion capability
4Ease of operation
If the wiper blade is mounted farther from the windscreen due to intermediate components, then complex articulation is achieved, but wiping performance deteriorates
Solution Approach 1:
By removing the intermediate oscillating arm, the patent reduces the distance between the mounting head and wiper blade. This extraction of unnecessary components allows the wiper blade to be positioned closer to the windscreen surface, improving wiping contact and efficiency
Solution Approach 2:
The integrated mounting head design eliminates the spatial gap created by intermediate components. By merging the mounting and connection functions into one compact assembly, the wiper blade can be mounted closer to the windscreen, enhancing wiping performance while maintaining articulation capability
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 solution results in a cost-effective, lightweight, and efficient windscreen wiper with improved wiping performance, reduced wear, and the ability to withstand large torque, suitable for various vehicle types without the need for complex machinery or additional tools.
Implementation Method 1
an elastic, elongated carrier element
Data Source
Figure 1
Figure 2(a)~2(b)
Figure 3
AI summary
A windscreen wiper device (1), particularly for automobiles, comprising an elastic, elongated carrier element, as well as an elongated wiper blade (2) of a flexible material, which can be placed in abutment with a windscreen to be wiped, which wiper blade (2) is of the flat blade type and includes at least one groove (3), in which groove (3) a longitudinal strip (4) of the carrier element is disposed, wherein said windscreen wiper device (1) further comprises a mounting head (8) for transferring a reciprocal movement to said wiper blade (2), with the special feature that said windscreen wiper device (1) further comprises a connecting device (7) for detachably connecting said wiper blade (2) directly to said mounting head (8), wherein said connecting device (7) is positioned near one end of said wiper blade (2), and wherein said connecting device (7), at the location of its attachment to said mounting head (8), is located in its entirety inside said mounting head (8).