design an adjustable device

cadounette

hello everyone
i am doing my intern and am told to come up with a design for a device adjustable in height and width.
i have been looking on the internet and found some designs that might work but the problem is i don't know exactly how does they function.
for example this design : http://www.rdbureau.com/p-184.html

so i'm hoping that someone can explain to me about how it operates.
thanks :)

berkeman

Hard to tell from the picture and the French explanation, but it could use the click tabs that you find on EZ-Up pop-up awenings. Are you familiar with them?

cadounette

euh no. i don't know what it is EZ-Up.
and i'm from france.. i forgot to mention it ^^'

berkeman

Pretty easy to find via google:

http://www.ezupdirect.com/

Close-up of the mechanical securing part (#10):

http://www.hutshop.com/slider.html

.

cadounette

many thanks.. it really helps :)