| 摘要 |
PROBLEM TO BE SOLVED: To provide a filament body processing structure allowing an independent use of a hollow section for wiring of a work tool and an application for a purpose requiring waterproofness while stabilizing a behavior of a filament body for the work tool.SOLUTION: A bent hollow member 74 includes a first flange 80 mounted in a first opening 76. A first seal member 82 having liquid-tightness is interposed between the first flange 80 and a first wrist element 34. In also a second opening 70 provided in the rear of a front arm base section 32, a second flange 84 is provided at a rear side end of an I-shaped pipe 72. A second seal member 86 which is the same as the first seal member 82 is interposed between the second flange 84 and a rear end face of the front arm base section 32. The bent hollow member 74 is rotatably connected to the I-shaped pipe 72 via a bearing 88 and an oil seal 90. |
