| 摘要 |
A relaying device between relatively rotatable members for carrying out an electric connection between two relatively rotatable members via a cable is disclosed. In this relaying device, a first rotary unit having an inside cylindrical section, a second rotary unit having a relationship of making a relative rotation with respect to the first rotary unit by surrounding the Inside cylindrical section of the first rotary unit, and a cable for electrically connecting between the first rotary unit side and the second rotary unit side are provided. The inside cylindrical section is provided with a groove section for introducing the cable between an outer peripheral surface of the inside cylindrical section and an inner peripheral surface of the inside cylindrical section from the outer peripheral surface side and for guiding out the cable from one end of the inside cylindrical section in its axial direction along the axial direction, and at least the section of the cable extending out from the groove section is divided into groups, each having a predetermined number of conductors with a smaller width, by slits extending in a longitudinal direction of the cable.
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