Patent ID: 8155715

Claim:
A cover mechanism for covering a hole of a portable electronic device including a base portion, the cover mechanism comprising: a cover having a latching portion and a locking portion formed thereon, the latching portion and the locking portion both comprising resilient parts; a locking structure formed on the base portion and configured for associating with the locking portion and the latching portion, wherein: in a closed state, the cover is latched to the base portion to cover the hole by deforming the resilient parts; from the closed state to an emergency state, the cover is unlatched from the base portion by a sudden pulling force, and the resilient part of the locking portion insufficiently rebounds, the locking portion physically links to the locking structure; from the closed state to an open state, the cover is unlatched from the base portion by a normal pulling force, and the resilient part of the locking portion sufficiently rebounds, no physical link between the locking structure and the cover is maintained.