Patent ID: 7394664

Claim:
A fastening mechanism, by which an expansion card is adapted to be attached to the housing of an electronic apparatus, comprising: a base disposed in the housing; a retention member having one side thereof pivotally connected to one side of the base, the side facing away from the housing being provided with a slot for an expansion card to insert therein; a push handle disposed on one side of the base and having an end portion extending towards the retention member; an elastic pressure-receiving portion disposed on one side of the retention member at a position opposite to the end portion of the push handle, wherein a terminal of the end portion is adapted to abutting against the elastic pressure-receiving portion for pushing the retention member towards the expansion card, such that the retention member holds the end portion of the expansion card in the slot of the retention member; wherein the push handle is a push piece, and the elastic pressure-receiving portion is adapted to receiving the pushing force from the push piece; and wherein the pressure-receiving portion includes an arm portion disposed to project from the retention member, and an elastic piece extending from the arm portion towards the retention member and having an elastic flange formed on one end thereof to abut against an end portion of the push piece.