A rotary connector device comprising: a fixed body configured by a first fixed body portion and a second fixed body portion disposed facing each other with a space being defined between the first fixed body portion and the second fixed body portion and coupled at a coupling portion; a rotation body rotatably assembled to the fixed body; and an inhibiting structure configured to inhibit foreign matter from entering the space through the coupling portion, wherein the coupling portion is exposed to an outer surface of the fixed body, wherein the space includes a first space between the rotation body and the fixed body and a second space, wherein a connection conductor is disposed on the fixed body in the second space defined by at least a first wall which extends outward in the radial direction of the rotation axis of the first fixed body portion, a second wall which extends outward in the radial direction of the rotation axis of the second fixed body portion facing the first wall and a third wall which is connected to the second wall and extends parallel to the rotation axis towards the first wall, wherein the connection conductor is connected to a first end of a cable conductor wire of a cable (30, 32) wound in the first space, wherein the rotation body is disposed in the first space (S 1) and is connected to a second end of the cable conductor wire, wherein the inhibiting structure includes a protecting member (62, 70) defining a gap passageway between the coupling portion and the connection conductor, or wherein the protecting member (62, 70) is disposed between the coupling portion and the connection conductor in the second space, characterized in that the protecting member (62, 70) axially extends into the second space between the radially opposite surfaces of the cable (30, 32) and a first coupling portion of the coupling portion exposed to an outer surface of the first wall and an outer surface of the third wall by an overlap of the first coupling portion, the protecting member (62, 70), and the connection conductor when the fixed body is viewed in the radial direction of the rotation body from the coupling portion to the cable (30, 32). a fixed body configured by a first fixed body portion and a second fixed body portion disposed facing each other with a space being defined between the first fixed body portion and the second fixed body portion and coupled at a coupling portion; a rotation body rotatably assembled to the fixed body; and an inhibiting structure configured to inhibit foreign matter from entering the space through the coupling portion, wherein the coupling portion is exposed to an outer surface of the fixed body, wherein the space includes a first space between the rotation body and the fixed body and a second space, wherein a connection conductor is disposed on the fixed body in the second space defined by at least a first wall which extends outward in the radial direction of the rotation axis of the first fixed body portion, a second wall which extends outward in the radial direction of the rotation axis of the second fixed body portion facing the first wall and a third wall which is connected to the second wall and extends parallel to the rotation axis towards the first wall, wherein the connection conductor is connected to a first end of a cable conductor wire of a cable (30, 32) wound in the first space, wherein the rotation body is disposed in the first space (S 1) and is connected to a second end of the cable conductor wire, wherein the inhibiting structure includes a protecting member (62, 70) defining a gap passageway between the coupling portion and the connection conductor, or wherein the protecting member (62, 70) is disposed between the coupling portion and the connection conductor in the second space, characterized in that the protecting member (62, 70) axially extends into the second space between the radially opposite surfaces of the cable (30, 32) and a first coupling portion of the coupling portion exposed to an outer surface of the first wall and an outer surface of the third wall by an overlap of the first coupling portion, the protecting member (62, 70), and the connection conductor when the fixed body is viewed in the radial direction of the rotation body from the coupling portion to the cable (30, 32).