Low closure force EMI/RFI shielded door.

摘要

An EMI/RFI shielded door assembly for use in controlling the movement of EMI/RFI in a shielded room or enclosure. The assembly has an electrically conductive frame (3) defining a generally rectangular opening. A conductive door stop (12) is formed on the inner surfaces of the top and side members of the frame (3) to form a pocket into which a shielded door (2) may be held when in its closed position. The threshold of the frame is preferably flat. A series of cam or drop hinges (4) are used to mount the door (2) to the frame (3). The hinges (4) cause the door (2) to be raised or lowered to or from the threshold as it is rotated on the hinges from a closed to an open position and vice versa. A low closure force gasket (15), e.g., less than 5 pounds per linear inch preferably formed of a conductive elastomer, is used to fill any gap that may exist between the door and the frame. Optionally, a rotatable EMI/RFI shielding means mounted in a hollow of the bottom of the door and comprised of a flap or flipper like blade attached to a rotatable rod can be used to seal the gap between the door and the threshold.