Patent ID: 8467184

Claim:
A portable electric device, comprising: an upper unit; a lower unit; a connection unit having a first end and a second end opposite with each other; a first pivotal portion, comprising: a first pivot served for pivoting the upper unit on the first end of the connection unit; and a first elastic member disposed on the first pivot; and a second pivotal portion, comprising: a second pivot served for pivoting the lower unit on the second end of the connection unit; and a second elastic member disposed on the second pivot, wherein when the upper unit, the connection unit and the lower unit are stacked together in parallel by an external force, the first elastic member and the second elastic member are respectively deformed to store a restored force, when the external force is gone, the restored force of the second elastic member rotates the connection unit to be away from the lower unit so as to retain a second included angle between the lower unit and the connection unit, and the restored force of the first elastic member rotates the upper unit to contact with the lower unit so as to retain a first included angle between the upper unit and the connection unit, wherein a third included angle is retained between the upper unit and the lower unit.