Rotary section current transmitting mechanism

摘要

A rotary section current transmitting mechanism includes a rotary member having an outer wall of a circular cross-section and a stationary member provided around the rotary member with separation from the rotary member by ring-shaped space so as to form concentric circles with the rotary member, and having an inner wall of a circular cross-section. The ring-shaped space accommodates a film-shaped wire. Both ends of the film-shaped wire are fixed in the same direction respectively to wire fixing sections of the rotary member and of the stationary member, and the film-shaped wire curves between the both ends. The film-shaped wire has a configuration in which conductors are sandwiched between insulating films. This configuration enables electric current to be stably transmitted from the stationary member to the rotary member which rotates forward and backward within a predetermined angle.