Universal Wiper Arm With Multiple Fastening Points
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Solution Overview
Problem
Existing wiper arm designs require separate production facilities and investments for each vehicle type, as they are typically standardized and not adaptable for different applications, leading to complexity and inefficiency in manufacturing and spare parts management.
Innovation Solution
A wiper arm with multiple separate fastening points and a U-shaped plastic cover, allowing the same wiper arm to be used for various vehicle windows by adjusting the wiper blade attachment positions, and incorporating a tension spring for variable contact pressure, enabling easy adaptation to different vehicle types and window sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate production facilities are created for each wiper arm type, then specific wiper arms can be provided for each vehicle type, but manufacturing complexity and investment costs increase
Solution Approach 1:
The wiper arm is designed with multiple fastening points (first, second, and third fastening points) along its longitudinal axis, enabling a single universal wiper arm design to accommodate different vehicle types and window sizes. This multi-functional design eliminates the need for separate production facilities for each vehicle type while maintaining adaptability.
Solution Approach 2:
The wiper arm is segmented into multiple functional zones with distinct fastening points positioned at different locations. This segmentation allows the same wiper arm to be configured for different applications by selecting appropriate fastening points, thereby reducing manufacturing complexity while preserving versatility.
2Productivity
If standardized wiper blades are used, then production efficiency improves, but the wiper arm must be precisely adapted to each vehicle type
Solution Approach 1:
The wiper arm incorporates multiple fastening points that allow dynamic reconfiguration for different vehicle types. By providing several attachment locations along the longitudinal axis, the system enables standardized wiper blades to be used across different applications without requiring precise adaptation of each wiper arm to every vehicle type.
3Ease of operation
If wiper blade is attached at incorrect fastening point, then improper contact pressure occurs, but the wiper blade may be damaged during operation
Solution Approach 1:
Different fastening points on the wiper arm are designed with specific local characteristics and positions along the longitudinal axis. Each fastening point is optimized for particular vehicle types or window configurations, ensuring that when the correct point is selected, proper contact pressure is achieved and wiper blade durability is maintained.
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
Enables the use of a single wiper arm for multiple vehicle applications, reducing manufacturing complexity and allowing easy adaptation to different vehicle types and window sizes, preventing damage from improper attachment and simplifying the attachment process.
Implementation Method 1
a tension spring (19) is provided for generating a defined contact pressure of the wiper blade (1a to 1c) on the vehicle window
Data Source
Figure 1~5
AI summary
The invention relates to a wiper arm (10) for a wiper blade (1a to 1c) for cleaning a vehicle window, with a wiper arm receptacle (11) which is arranged on an end region of the wiper arm (10) for fastening the wiper arm (10) to a wiper drive, and with at least one fastening point (20 to 22) for connecting the wiper arm (10) to the wiper blade (1a to 1c). According to the invention, the wiper arm (10) has a plurality of fastening points (20 to 22) which are locally separated from one another for the wiper blade (1a to 1c).