Patent ID: 7448588

Claim:
A supporting device used for sustaining an apparatus within a portable computer, comprising: a shell comprising a rotational chamber and a release chamber both identified by sidewalls of the shell, wherein the release chamber is located in the shell and the rotational chamber penetrates the shell and perpendicularly penetrates the release chamber; a release mechanism located in the release chamber, which is used for operating the supporting device; a rotational mechanism located in the rotational chamber, wherein the rotational mechanism protrudes from the rotational chamber and moves correlatively with the release mechanism; and a frame coupling with the rotational mechanism, wherein when the frame is used for sustaining the apparatus, the frame is unfolded and when the frame is folded, the rotational mechanism is rotated to fold the frame adjacent to the apparatus, wherein the shell further comprises at least one opening defined by the rotational chamber, and at least one cap located on the opening of the rotational chamber, wherein the cap has a through-hole allowing the rotational mechanism to protrude through the rotational chamber via the through-hole.