Patent ID: 7747208

Claim:
A cover structure for a scan device comprising: a cover mounted on a housing of the scan device, comprising: a first cover portion being pivotally coupled to the housing, and a second cover portion being pivotally connected to and rotatable about the first cover portion; and an angle-positioning mechanism, disposed between the housing and the cover, comprising: at least a first locating device disposed between the first cover portion and the housing, comprising: a claw structure, located at an end of the first cover portion; and a locating projection, formed on the housing and located oppositely to the claw structure; and at least a second locating device disposed between the first cover portion and the second cover portion; wherein when the first cover portion and second cover portion are being lifted, the first locating device will produce an interference action between the first cover portion and the housing of the scan device, so as to position the first cover portion at a desired opening angle with respect to the housing, while the second locating device will produce an interference action between the first cover portion and the second cover portion, so as to position the second cover portion at a desired opening angle with respect to the housing; wherein as the first cover is raised, the claw structure will hook on the locating projection so as to produce an interference action.