Patent ID: 8190218

Claim:
A foldable handheld device comprising: a first casing; a second casing comprising a curved surface, and a support surface connected to and being approximately perpendicular to the curved surface; a connecting mechanism for connecting the first casing and the second casing, so that the second casing is rotatable relative to the first casing; and a position mechanism comprising: an elastic piece disposed on the first casing, an end of the elastic piece having a protrusion disposed thereon; and a concave portion disposed on the curved surface of the second casing; wherein when the second casing is rotated relative to the first casing, the protrusion of the elastic piece is slid on the curved surface to couple to the concave portion to thereby position the second casing at a first operation state, and is further slid to be released from the concave portion, to thereby position the second casing at a second operation state when the protrusion touches the support surface.