| 摘要 |
<p>PROBLEM TO BE SOLVED: To protect a wire harness against torsional deformation even if the turnable range is wide. SOLUTION: In a structure for wiring a wire harness 6 from one arm 2 to the other arm 3 supported rotatably with respect to one arm 2 through a rotary joint, a hollow member 5 conducting the hollow sections of both arms is bonded to the rotary joint of one arm 2. The wire harness 6 led out from the hollow section of one arm 2 is passed through the hollow member 5 into the hollow section of the other arm 3 where the wire harness 6 is wound spirally about the axis of the rotary joint. The spiral part is secured, on the inner part thereof, to the hollow member 5 and led out, on the outer part thereof, to the forward end side of the other arm 3 under free state. Subsequently, the wire harness 6 is bent arcuately and turned down to go half round the spiral part and that part is secured to the other arm 3 side and led further led out in the forward end direction thereof.</p> |
