Solution:
I have solved the problem with a transverse hole in the umbrella stand pipe, which in future permits Splintfixierung. Now I just have to get a reasonable split pin, which is then attached to a shade rib with a cord. The clamping is done now by old fathers custom by pushing the shield bearing. I'll still relevant photos (temporary with screw - as Splinter set) set.
Conclusion:
Had the same screen designed so he could be even cheaper and at the same time robust. Another drawback of the screen is that it is neither adjustable nor bendable, this course puts again the price. He is neither adjustable nor bendable can not see clearly the product description and the absence of this not unimportant functions you miss very much if they just missing. => This product definitely deserves not advise!