Thank you very much for the answers.
I forgot to specify that the panels is to be manually opened from the inside (pushed). So i just need the mounting of the panels to the wall, to include some sort of locking rotation mechanism, so when you push the panels they will rotate to the desired...
I'm working on a project, were i am to design a opnening mechanism for some solar shading panels on the gable of a house.
the panels should be able to rotate from starting position (0 degrees) to almost 90 degrees.
I have been looking at gas springs in order to be able to lock the panels in...