| 摘要 |
PURPOSE:To extend and change a corona wire easily by hooking one end of the corona wire with a wire hooking member having saw teeth, and engaging this hooking member with an engaging member having saw teeth. CONSTITUTION:At both ends of the shield case 1 of a corona discharge, insulating blocks 2 and 3 are fixed; a corona wire 4 is hooked with the other end of a tension spring 6 hooked with a spring hook 7 fixed atop of a fixed electric contact 8, and the other end of the corona wire 4 is hooked with the hooking part 11a of a wire locking member 11. The saw teeth of the locking member 11 engages with the saw- tooth part 2a of the insulating block 2, so moving the locking member 11 as shown by an arrow C extends the wire 4 while tensile force is applied gradually. |
