Relay apparatus for relative rotating members

摘要

A relay apparatus for relative rotating members includes a first rotating member (rotating member) 11 having an internal cylindrical portion 11a, a second rotating member (fixed member) 12 having an external cylindrical portion 12a which surrounds the internal cylindrical portion 11a with a predetermined gap and is relatively rotated with respect to the internal cylindrical portion 11a, a flexible flat cable 13 which is stored along an annular space K between the internal cylindrical portion 11a and the external cylindrical portion 12a to be spirally wound and which has an inner peripheral portion 13a held by the internal cylindrical portion 11a and an outer peripheral portion 13b held by the external cylindrical portion 12a, and a C-shaped moving member 21, movably arranged along the space K, for inverting the flexible flat cable 13 in an opening portion 211c. One rotating member of the first rotating member 11 and the second rotating member 12, which is rotatably driven, has a flange 11b formed on the cylindrical portion, and the moving member 21 is arranged on the flange 11b. <IMAGE>