Patent ID: 7104153

Claim:
A linear element laying structure in a relative rotation mechanism, in which first and second members having a hollow portion each are connected so as to be relatively rotatable around an axis passing through the two hollow portions, and linear elements, formed of wires and/or pipes, are passed through a hole in the center of rotation of the junction of said first and second members and laid in the hollow portions, wherein a bundle of said linear elements is fixed to a stationary portion of said second member on the side of the hollow portion, extends from the stationary portion and passes through the hollow portion of said second member, is guided into the hollow portion of said first member through the hole in the center of rotation, and is divided into a plurality of split bundles formed of one or more linear element each, and the split bundles are guided at given angles to the direction of the radius of the relative rotation of said first member, drawn out through a plurality of openings in the side faces of said first member, and fixed near said openings, wherein said split bundles are clamped by means of dampers located near the openings of the first member so that the clamped portions are flat.