Patent ID: 7715186

Claim:
A case, comprising: a body, which has at least one hollow; a cover, which is disposed aside the hollow; and at least two link elements, each of which has a first pivot part, a first block part, a second pivot part, and a first elastic member; wherein the first pivot part has a first end pivoted on the body and a second end connected to the first block part, the second pivot part has a first end pivoted on the cover and a second end connected to the first block part, the first elastic member provides a force to push the first block part from a first position to a second position so as to correspondingly push the cover, the first block part is separated from the body and the cover covers the body when the first block part is positioned at the first position, and the first block part is in contact with the body and the cover is separated from the body when the first block part is positioned at the second position.