A hinge apparatus comprising: a rotation body; and a fixed body configured to support the rotation body rotatably about a rotation axis, wherein the rotation body includes: a base frame having: a base body portion extending along the rotation axis; and a side portion extending from an end of the base body portion in a direction orthogonal to the rotation axis and formed with a first through hole (2c1) with the rotation axis as a central axis, wherein the fixed body includes: a bracket having: a base portion; a first side portion extending from a first edge of the base portion; a second side portion extending from a second edge of the base portion; a superimposed portion extending from the second side portion so as to be overlapped with the first side portion; a second through hole passing through the first side portion; and a third through hole passing through the superimposed portion and communicating with the second through hole; and a stud inserted through the first through hole (2c1), the second through hole and the third through hole, and secured to the bracket so as to rotatably support the base frame with respect to the bracket, and wherein the base frame has an extending portion (2a6) to be in contact with at least one of the first side portion and the superimposed portion in a predetermined angular position with respect to the bracket, and by the contact, the rotation body is regulated from rotating with respect to the fixed body. a rotation body; and a fixed body configured to support the rotation body rotatably about a rotation axis, wherein the rotation body includes: a base frame having: a base body portion extending along the rotation axis; and a side portion extending from an end of the base body portion in a direction orthogonal to the rotation axis and formed with a first through hole (2c1) with the rotation axis as a central axis, wherein the fixed body includes: a bracket having: a base portion; a first side portion extending from a first edge of the base portion; a second side portion extending from a second edge of the base portion; a superimposed portion extending from the second side portion so as to be overlapped with the first side portion; a second through hole passing through the first side portion; and a third through hole passing through the superimposed portion and communicating with the second through hole; and a stud inserted through the first through hole (2c1), the second through hole and the third through hole, and secured to the bracket so as to rotatably support the base frame with respect to the bracket, and wherein the base frame has an extending portion (2a6) to be in contact with at least one of the first side portion and the superimposed portion in a predetermined angular position with respect to the bracket, and by the contact, the rotation body is regulated from rotating with respect to the fixed body. a bracket having: a base portion; a first side portion extending from a first edge of the base portion; a second side portion extending from a second edge of the base portion; a superimposed portion extending from the second side portion so as to be overlapped with the first side portion; a second through hole passing through the first side portion; and a third through hole passing through the superimposed portion and communicating with the second through hole; and a stud inserted through the first through hole (2c1), the second through hole and the third through hole, and secured to the bracket so as to rotatably support the base frame with respect to the bracket, and wherein the base frame has an extending portion (2a6) to be in contact with at least one of the first side portion and the superimposed portion in a predetermined angular position with respect to the bracket, and by the contact, the rotation body is regulated from rotating with respect to the fixed body.