Wiper Arm Spray Nozzle Nesting in U-Mount
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Solution Overview
Problem
Existing wiper devices with spray nozzles on the wiper arm require a widened design, leading to visual and production challenges, as well as necessitating adaptations in vehicle body or attachment locations, and are cumbersome to produce.
Innovation Solution
The wiper device is designed with spray nozzles that do not project laterally beyond the U-shaped mount of the wiper arm, allowing for a compact design, with the spray nozzles integrated within the mount and connected detachably, enabling simple mounting and a secure fastening mechanism for the wiper blade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If spray nozzles are arranged on the wiper arm, then cleaning function is improved, but wiper arm width must be enlarged
Solution Approach 1:
The spray nozzles are integrated within the U-shaped mount structure of the wiper arm, nesting the cleaning function inside the existing structural boundaries. This allows the spray nozzles to be housed without increasing the overall width of the wiper arm, as they are contained within the hollow space of the U-shaped mount.
Solution Approach 2:
Instead of arranging spray nozzles laterally on the wiper arm (width dimension), the design places them within the depth of the U-shaped mount structure. This shifts the spatial arrangement from a lateral projection to an internal integration, maintaining the original width while adding functionality.
2Adaptability or versatility
If wiper arm is widened for spray nozzles, then cleaning function is improved, but visual appearance deteriorates
Solution Approach 1:
The spray nozzles are nested within the existing U-shaped mount structure, maintaining the original streamlined width of the wiper arm. This prevents any visual disruption to the design, as the spray nozzles are hidden inside the structural boundaries rather than protruding outward.
3Adaptability or versatility
If wiper arm is widened for spray nozzles, then cleaning function is improved, but production complexity increases
Solution Approach 1:
The spray nozzles are integrated within the existing U-shaped mount structure, which can be produced as a single stamped or bent metal part. This avoids the need for separate lateral extensions or additional welding operations, maintaining the simplicity of the original manufacturing process while adding functionality.
4Adaptability or versatility
If wiper arm is widened for spray nozzles, then cleaning function is improved, but vehicle body adaptation is required
Solution Approach 1:
The spray nozzles are nested within the existing U-shaped mount structure, maintaining the original width boundaries of the wiper arm. This ensures compatibility with existing vehicle body openings and mounting locations, eliminating the need for any modifications to the vehicle structure.
Data Source
AI summary
The invention relates to a wiper device (10) for cleaning vehicle windows, with a wiper arm (11) and with a wiper blade (12) able to be fastened on the wiper arm (11), with a cleaning device (25), having at least one spray nozzle (44, 45), for spraying a washing fluid, wherein the at least one spray nozzle (44, 45) is arranged in the region of the free end of the wiper arm (11) and is connected directly therewith, and with a fastening device (35) for connecting the wiper blade (12) with the wiper arm (11), wherein the wiper arm (11) has a mount (28), having an at least substantially U-shaped cross section, with two parallel side wall (17, 18) for the fastening device (35) of the wiper blade (12), and wherein the cleaning device (25) is constructed on a component (27) which is separate from the fastening device (35) for the wiper blade (12). It is provided according to the invention that the at least one spray nozzle (44, 45) does not, at least laterally, project over the cross-section of the U-shaped mount (28).


