Patent ID: 7813115

Claim:
An electronic apparatus comprising: a first enclosure; a second enclosure defining a backside superposed on the first enclosure for relative rotation around a rotation axis set perpendicular to a front surface of the first enclosure, said relative rotation being restricted within a range of plus/minus 90 degrees from a reference attitude; a first flat surface defined on the backside of the second enclosure at a position inside a contour of the second enclosure, the first flat surface facing outward in a radial direction of the rotation axis, the first flat surface extending straight along an imaginary plane set perpendicular to the rotation axis; a second flat surface defined on the backside of the second enclosure at a position inside the contour of the second enclosure, the second flat surface facing outward in the radial direction of the rotation axis, the second flat surface extending from one end of the first flat surface along the imaginary plane in a direction perpendicular to the first flat surface; a third flat surface defined on the backside of the second enclosure at a position inside the contour of the second enclosure, the third flat surfaced facing outward in the radial direction of the rotation axis, the third flat surface extending along the imaginary plane from an other end of the first flat surface in parallel with the second flat surface; and a pair of receiving pieces placed on the front surface of the first enclosure at a position inside the contour of the second enclosure, the receiving pieces receiving the first flat surface at a position behind the second enclosure when the second enclosure is set in the reference attitude, the receiving pieces receiving the second flat surface at a position behind the second enclosure when the second enclosure is set in an attitude of the plus 90 degrees from the reference attitude around the rotation axis, the receiving pieces receiving the third flat surface at a position behind the second enclosure when the second enclosure is set in an attitude of the minus 90 degrees from the reference attitude.