Patent ID: 7160051

Claim:
A closure device comprising a fixed frame and a covering element supported by the frame, the frame defining a frame plane and a central axis perpendicular to said frame plane, the covering element being articulated to the frame by a hinge, the device comprising a first latch provided with a first covering element latch surface which is fixedly joined to the covering element and with a first frame latch surface which is fixedly joined to the frame, said first covering element and first frame latch surfaces being inclined relative to the frame plane and cooperating when the covering element is in the closed position on the frame, the covering element and the frame having a stop which is offset circumferentially from the first latch relative to the central axis, the stop comprising a stop surface which is fixedly joined to the covering element and a stop surface which is fixedly joined to the frame, these stop surfaces cooperating exclusively when the covering element is in the closed position and limiting a displacement of the covering element within the frame in the frame plane, wherein the stop surfaces of the covering element and the frame are inclined relative to the frame plane by an angle of from 30° to 80° and they maintain the covering element flat on the frame, and wherein the frame delimits an access opening which is closable by said covering element, and the frame plane extends parallel to said access opening.