Mounting apparatus for motherboards

A mounting apparatus for mounting a planar member comprising:

• a base with a plurality of standoffs formed thereon, the standoffs each comprising a head portion and a neck portion;
• at least one locking member secured on the base;
• a supporting tray secured on a bottom surface of the planar member with a pair of supporting pieces bending upwardly from opposite ends of a front portion thereof, and a plurality of mounting holes defined in the supporting tray to receive the standoffs of the base, the mounting holes each comprise an accommodating hole and a retaining hole;
• and
• an operating shaft comprising a pair of arms pivotally attached to the supporting tray on the supporting pieces, the arms each forming a first pressing portion and a second portion on a bottom portion thereof;
• wherein after the head portions of the standoffs of the base are received in corresponding accommodating holes of the supporting tray and the first and second pressing portions press opposite sides of the locking member respectively, the operating shaft is pushed towards an inner space of the base, the planar member is attached to the base when the neck portions of the standoffs are received in corresponding retaining holes.

In combination:

• a computer base;
• a motherboard;
• a tray horizontally movable in the computer base with the motherboard supported thereof;
• at least one locking member immovably disposed in the computer base adjacent to the tray;
• an operating shaft pivotally attached to the tray with at least one free end straddling on said at least one locking member;
• and
• means for securing the motherboard in the computer base in a fixed position;
• wherein said free end of the operating shaft drives the motherboard and the tray to horizontally move between the fixed position and a released position.