Patent ID: 7216401

Claim:
An assembly comprising: a main body and a sub-body rotatably positioned on the main body; a hinge assembly connecting the main body to the sub-body, the hinge assembly including: a first hinge portion adapted to rotatably support first and second lower sides of the sub-body, the first and second lower sides being on a face of the sub-body facing the main body; and a second hinge portion adapted to rotatably support a rear end of the sub-body with a surface contact and to maintain a rotated angle of the sub-body, the sub-body having two ends, a front end having an axis of rotation and a rear end; wherein the first hinge portion comprises: a hinge protrusion arranged on a surface of the first side of the sub-body, a hinge protrusion inserting-hole arranged on a rotational space accommodating the first side surface of the sub-body and adapted to receive the hinge protrusion; a hinge-hole arranged on a surface of the second side of the sub-body; a through-hole arranged on a rotational space accommodating the second side surface of the sub-body to correspond to the hinge-hole; and a hinge locker passing through the through-hole and the hinge-hole; and wherein the hinge locker comprises: a horizontal portion having a seating surface arranged to be in contact with an inner surface of the sub-body; a vertical portion having a shaft-forming surface arranged in a direction perpendicular to the seating surface; a hinge shaft protruding perpendicularly from the shaft-forming surface thereof, the hinge shaft being arranged to pass through the hinge-hole and the through-hole; and a hinge locker seating portion arranged on the inner surface of the sub-body to receive the seating surface of the horizontal portion of the hinge locker.