moving conveyor by belt-chain command

I want to create an assembly of conveyor as shown in attached file.

Problem is that when I apply Belt-chain feature, a line appeared but I want complete belt as we see in real.

i.e. it want that it should be work as work in real life, and solidworks provide a real  belt.

I attached the snapshot.

Please also checkout this youtube link:

http://www.youtube.com/watch?v=Tsrc2lMdH08

Thanks

SolidworksAssemblies