Patent ID: 7881758

Claim:
An electronic apparatus, comprising: a supporting frame unit; a rotation supporting unit installed on the supporting frame unit; a housing unit that is fixed on the rotation supporting unit and can be rotated by the rotation supporting unit; and a rotation locking mechanism that is installed away from the center of rotation of the rotation supporting unit and, in case where the housing unit is rotated to a predetermined angle, holds the supporting frame unit and the housing unit in a locked state, wherein the rotation locking mechanism includes a locking pin, a pin engaging portion that engages with the locking pin, and an elastic portion that exerts an elastic force on the locking pin or the pin engaging portion, the elastic portion is in a compressed state if the locking pin and the pin engaging portion contact each other, and is in a released state if the locking pin and the pin engaging portion do not contact each other, and the locked state between the supporting frame unit and the housing unit is generated by engagement between the locking in and the pin engaging portion, and the compressed state of the elastic portion.