Patent ID: 7872860

Claim:
A portable apparatus comprising: an electronic device defining a locking slot; and a fastening device detachably attached to the electronic device, the fastening device comprising: a cover comprising a hook capable of being received in the locking slot of the electronic device, the cover defining an opening and a through hole, the opening adjacent to the hook; a pressing member disposed on the cover, the pressing member capable of being movable along a first direction to be locked on the cover and movable along a second direction which is a reverse direction to the first direction to unlocked from the cover; a locking member fastened on the cover and contacting with the pressing member to be engaged by the pressing member, the locking member movable along a third direction when the pressing member moves along the first direction and movable along a fourth direction when the pressing member moves along the second direction, the locking member comprising an inserting portion capable of protruding through the opening to insert into the locking slot after the locking member move along the fourth direction and drawing back from the locking slot after the locking member move along the three direction; and an activating member disposed on the cover, the activating member capable of activating the pressing portion to unlock from the cover, the activating member comprising an activating portion protruding through the through hole; wherein the activating member is enabled to activate the pressing member when the activating portion is pressed, and the pressing portion is driven to move along the first direction when the pressing portion is pressed.