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Funky wiper arm

Discussion in 'Gen 3 Prius Main Forum' started by Bluegrassman, Oct 1, 2016.

  1. Bluegrassman

    Bluegrassman Active Member

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    Why is the arm so oddly shaped? I initially thought aerodynamics, but if that were the case both would be made that way, right? 1475370486457.jpg

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    #1 Bluegrassman, Oct 1, 2016
  2. BZzap!

    BZzap! Senior Member

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    If you look at it with respect to an air foil you can see that it has been greatly influenced by wind tunnel testing. It makes sense to me that the large surface of the lower blade is designed to deflect the air over the top of the top blade, thus eliminating air turbulence. Wadda ya think?
     
    #2 BZzap!, Oct 1, 2016
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  3. ChapmanF

    ChapmanF Senior Member

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    It's double-jointed. Watch it move some time. It doesn't follow a simple circular arc. The Prius windshield is a yuge piece of glass, and this wiper design allows wiping further into the corner.

    What puzzles me is how they finally managed to make the Gen4 work with plain vanilla wipers. The double-jointed design has been in Gen3 all the way back to Gen1.

    It can, if you were wondering, sometimes get squeaky.

    -Chap
     
    #3 ChapmanF, Oct 1, 2016
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  4. Bluegrassman

    Bluegrassman Active Member

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    That explains it. Thanks!

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    #4 Bluegrassman, Oct 1, 2016
  5. BZzap!

    BZzap! Senior Member

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    That explains that big aerodynamic cover. Didn't know that the one wiper was articulated.
     
    #5 BZzap!, Oct 2, 2016
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