| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wire tensioning device for indirect hot line work which is able to switch a rotation direction of a drum.SOLUTION: A wire tensioning device 10 comprises: a wire grip 1; and a wire holder 8. The wire grip 1 includes: a wire grip body 11; a cylindrical holder 12; and a movable shaft 13. The wire grip 1 includes: a ratchet gear 14; and a connection metal fitting 15. A drum 11d is disposed at the wire grip body 11. The drum 11d may rotate in a direction that a belt 11b is wound up and a direction that the belt 11b is loosened and adjusts tensile force of an overhead distribution line W held by the wire holder 8. When an insulation operation rod 7 is pushed up, the ratchet gear 14 is engaged with a first swing lever 16. The engagement allows a user to wind up the belt 11b on the drum 11d by rotating a holding part 73 around an axis in one direction. When the insulation operation rod 7 is pushed down, the ratchet gear 14 engages with a second engagement pawl 17n, the drum 11d is allowed to rotate only in the direction that the belt 11b is loosened.</p> |
