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Automobile windshield wiper mechanism: Single wiper of new Mercedes
By Gopi Krishna Mandadi
Shravani Kasaragadda
Goutham Chinni
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About
• windshield wiper is a device used to remove rain and debris from a windscreen or windshield
• Almost every motor vehicle is equipped with wipers and also it’s a legal requirement.
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• It cleans out unnecessary elements that pose as distractions to the focused driving vision of a Mercedes owner.
• The blade is swung back and forth over the glass, pushing water and other elements from its surface.
• The assembly consists of: the arm pivoting at one end, the motor that powers the assembly the blade that attaches to the arm.
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• Most automobiles use two synchronized radial type arms, while many commercial vehicles use one or more pantograph arms.
• To note, Mercedes-Benz pioneered a system called the "Monoblade" where in a single wiper extends outward to get closer to the top corners, and pulls in at the ends and middle of the stroke, sweeping out a somewhat 'W'-shaped path.
Single wiper of new Mercedes
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Design
In fact, it is very difficult to get a 4 bar mechanism to rotate an output link by 160 deg. It will quickly jam with a little wear.
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How about a 6 bar mechanism?
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• So, the motion needs to extend and retract as it rotates across the windshield.
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How about a crank slider
• The wiper is the slider• The crank rotates 4X faster than the wiper to give
the desired wiper motion
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Trial’s
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Trial 2
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Wiper Video
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Trial 3
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Windshield wiper Mercedes
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Thank You….