Rotary connector device and rotation body of rotary connector device

A rotary connector device comprising:

• a fixed body;
• a rotation body assembled to the fixed body, the rotation body being rotatable about a rotation axis with respect to the fixed body;
• and
• a connector connected to the rotation body, the connector comprising:
• a cover including a first wall and a space therein, the first wall extending from the rotation body in an axial direction substantially parallel to the rotation axis;
• a conductor electrically connected to a cable conducting wire and disposed in the space;
• and
• a holding member attached to the cover inserted in the space and holding the conductor, the holding member including, in the first wall, an exposed portion exposed to an outside of the space,
• the cover and the holding member including a restriction structure to restrict foreign matter from entering the space through the exposed portion,
• the restriction structure comprising:
• a first protrusion that protrudes in a direction substantially orthogonal to the first wall;
• and
• a first recess in which the first protrusion is fitted,
• the holding member including the first recess,
• the cover including the first protrusion, and
• the first recess and the first protrusion extending from the rotation body in the axial direction.

A rotation body of a rotary connector device, comprising:

• an annular member to be assembled to a fixed body, the annular member being rotatable about a rotation axis with respect to the fixed body;
• and
• a connector connected to the annular member, the connector comprising:
• a cover including a first wall and a space therein, the first wall extending from the annular member in an axial direction substantially parallel to the rotation axis;
• a conductor electrically connected to a cable conducting wire and disposed in the space;
• and
• a holding member that is attached to the cover inserted in the space and holds the conductor, the holding member including, in the first wall, an exposed portion exposed to an outside of the space,
• the cover and the holding member including a restriction structure to restrict foreign matter from entering the space through the exposed portion,
• the restriction structure comprising:
• a first protrusion that protrudes in a direction substantially orthogonal to the first wall;
• and
• a first recess in which the first protrusion is fitted,
• the holding member including the first recess,
• the cover including the first protrusion,
• the holding member including a second recess recessed in a direction substantially orthogonal to the first wall,
• the first recess and the second recess being provided to sandwich the exposed portion in a direction substantially orthogonal to the axial direction along the first wall, and
• the cover including a second protrusion fitted in the second recess.