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  • Ergonomic limits for thumb and 1st finger?

    Discussion in 'The main mechanical design forum' started by ship69, Dec 8, 2015.

    1. ship69

      ship69 New Member

      Dec 2015
      Likes Received:

      I am designing product that is similar to a clothespin /cloths-peg. i.e. It involves some jaws that need to be opened by a user with one hand.

      I need to know:
      a) What is the maximum ergonomic span between thumb and 1st (or 2nd) fingers?
      b) What is the maximum acceptable for between thumb and 1st (or 2nd) fingers?

      For use by male and female adults (aged at least late teens on wards).

      Where can I look this sort of thing up?

      Many thanks


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