A hinge apparatus comprising: a rotation body ; and a fixed body configured to support the rotation body rotatably about a rotation axis (X), wherein the rotation body includes: a base frame having: a base body portion extending along the rotation axis (X); and a side portion extending from an end of the base body portion in a direction orthogonal to the rotation axis (X) and formed with a first through hole (2c1) with the rotation axis (X) 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 (X), wherein the rotation body includes: a base frame having: a base body portion extending along the rotation axis (X); and a side portion extending from an end of the base body portion in a direction orthogonal to the rotation axis (X) and formed with a first through hole (2c1) with the rotation axis (X) 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 . <EOS>