To provide a hinge which can generate turning regulating force when a turning angle is within a prescribed range and generating no turning regulating force when a turning angle is out of the prescribed range.

The hinge 100L includes a ceiling side fixing member 110; a monitor side fixing member 120; a cylindrical member 130 having an inner peripheral surface 132 having an escape groove 135 formed therein and fixed to the ceiling side fixing member 110; and a shaft member 140 which has an outer peripheral surface 142 partitioned in a first abutment surface 142a, a first separation surface 142c, a second abutment surface 142b and a second separation surface 142d and one end part of which is fixed to the monitor side fixing member 120 and the other end of which is pivotally supported by the ceiling side fixing member 110 to be turnable. The cylindrical member 130 is not elastically deformed when the first abutment surface 142a is opposed to the escape groove 135 and the cylindrical member 130 is elastically deformed to be expanded in the radial direction of the cylindrical member 130 when the first abutment surface 142a is opposed to the inner peripheral surface 132.