I believe that some careful friends will find that the umbrella surface of some umbrellas is composed of different number of triangular pieces, including 6 pieces, 8 pieces, 10 pieces and so on.


Usually our 50% fold umbrella is composed of 6 bones, and three fold multiple 8 bones, so what is the significance of the size of the number of bones?

In fact, the number of bones of the umbrella does not have much significance. If the number of bones of the umbrella is more, the umbrella bones will be more difficult to fold and more solid, so that the safety factor of the umbrella will also increase. Similar to our three-fold umbrella with 8 bones is the most conventional, but it can be made with 10 bones. Compared with 8 bones, the 10-bone umbrella will be more solid, and it is also the most suitable number. If you go up further, the weight of the umbrella will increase a lot.

And there is a point, the more the umbrella bones, the more round the umbrella surface, more beautiful.