Patent ID: 6897986

Claim:
A driving device for a module, comprising: a first rigid frame; a second rigid frame; an active gear wheel disposed on said first rigid frame; a passive gear wheel disposed on said second rigid frame; a driving belt engaged with said active gear wheel and said passive gear wheel; a rigid component having a first end and a second end, said first end being affixed to said first rigid frame, said second end including a vertical surface and being connected to said second rigid frame; and an elastic component having a first end and a second end, said first end being in contact with the vertical surface of said second end of said rigid component, said elastic component sleeving said second end of said rigid component; wherein said elastic component interacts with said second rigid frame to allow said second rigid frame to move along the axis of said rigid component within a predetermined distance when required to adjust the tension of said driving belt, said second rigid frame having a first component with a first hole; and a second component with a second hole and a surface, said second component being spaced from said first component by a predetermined space; wherein said rigid component is sleeved into said first hole and said second hole, said elastic component is disposed between said first component and said second component, and said second end of said elastic component is in contact with said surface of said second component.