windshield wiper (unwiped area) problem..

[Nokia]

How can we improve the system to wipe the most area of the screen?!
Do you know any information sources related to that problem
thank you

 

[Curmudgeon]

A 'greater area' can be covered by changing the linkage of the wiper - a 4-bar linkage can be created such that a very nearly straight-line motion of the wiper could be created - in which case a very wide wiper could traverse back and forth across the windshield - - covering 95% or more of the usual semi-rectangular windshield.
Wipers like this are used on some large trucks.

Of course, the smarty comment remains - - you could get very near 100% coverage of the windshield if you change the shape of the windshield to fit the path of the wiper.

And the big question is - - what area SHOULD be covered? How quickly? Under what circumstances?....etc.

Curmudgeon

 

[EMc]

Curmudgeon's comments seem to me to point in a valid, direction. What area of your windshiled do you use most often? Yes, yes, "all of it", but consider the problem from an ergonomic point of view. My car's defroster is underpowered, and I know what area of the windshield needs to be clean (I don't want to spend any more time outside than I have to scraping it!). For other things, I can use the side windows.

Likewise, in the rain, there are parts of the windshield that you don't really need to have clear, or that you could do without if certain other parts could be kept clear faster or better. Granted, it's probably the middle of the windshield that needs the most work, but if Nokia really wants to arrive at a "better" system, he might try approaching the problem of the driver's needs, rather than straight mechanical engineering.