Patent ID: 6840787

Claim:
A rotating connector, comprising: a first case being cylindrical in shape and having a first-case outer cylindrical wall face and a second case being cylindrical in shape and having a second-case inner cylindrical wall face, said first and second cases being connected together in a manner that one of said first and second cases can rotate relative to the other and that said first-case outer cylindrical wall face and said second-case inner cylindrical wall face face each other and define an annular space, said one of first and second cases being to be fixed to a stationary member and said other thereof being to be attached to a rotating member; a plurality of rotating rollers arranged in said annular space, with predetermined spaces between said rotating rollers, in a manner that said rotating rollers can rotate relative to said first and second cases, said rotating rollers including a U-turn guide roller; a first flat cable held in said annular space and fixed to said first case at one end and said second case at the other end, said first flat cable being wound along said first-case outer cylindrical wall face in a manner that said first flat cable passes through a first gap formed between said first-case outer cylindrical wall face and each of said rotating rollers, then U-turned by being directly guided by said U-turn guide roller, and then wound along said second-case inner cylindrical wall face in a manner that said first flat cable passes through a second gap formed between said second-case inner cylindrical wall face and each of said rotating rollers; and a second flat cable held in said annular space in a manner that said second flat cable lies under said first flat cable, and fixed to said first case at one end and said second case at the other end, said second flat cable being smaller in thickness than said first flat cable.