Rotary connector device and method of assembling rotary connector device

A method of assembling a rotary connector device, comprising the steps of:

• assembling a rotating body and a fixed body to be relatively rotatable so as to have a housing space inside;
• providing a viewing window that is a through hole through which the housing space is viewed from outside of the rotary connector device;
• providing an outer regulating portion and an inner regulating portion on a periphery of the viewing window;
• and
• passing a cover member that is transparent and flexible through the outer regulating portion while being deflected to arrange the cover member between the outer regulating portion and the inner regulating portion so as to cover the viewing window,
• wherein the outer regulating portion can contact an outer surface of the cover member facing toward outside of the rotary connector device,
• wherein the inner regulating portion can contact an inner surface of the cover member facing the housing space, and
• wherein at least one of the outer regulating portion and the inner regulating portion has a shape holding portion that holds the cover member so as to protrude in a penetrating direction in which the through hole penetrates.

A rotary connector device comprising:

• a fixed body;
• a rotating body assembled to the fixed body to be relatively rotatable so as to have a housing space inside;
• a viewing window that is a through hole through which the housing space is viewed from outside of the rotary connector device;
• a cover member disposed at the viewing window so as to cover the viewing window and being transparent and flexible;
• an outer regulating portion facing toward outside of the rotary connector device and disposed so as to contact an outer surface of the cover member;
• and
• an inner regulating portion facing the housing space and disposed so as to be able to contact an inner surface of the cover member,
• wherein the cover member is disposed between the outer regulating portion and the inner regulating portion, and
• wherein at least one of the outer regulating portion and the inner regulating portion has a shape holding portion that holds the cover member so as to protrude in a penetrating direction in which the through hole penetrates.