| 摘要 |
PURPOSE:To reduce the friction resistance between the wire and the wire guide extremely or to zero by keeping the wire and the wire guide in non-contact state by an air blow-off means. CONSTITUTION:A wire guide 8 is provided with an air blow-off means 13 to eject the air from its circumferential end. When an air compressor present outside the deice is driven, the air is ejected from the air ejection holes 13(19) formed on the circumferential end of the guide 8. At this time, the wire (W) is kept away from the circumferential end of the guide 8 compulsorily by a pressure of the air blowing from the ejection holes 13(19) and the non-contact state of the wire (W) and the guide 8 is retained. Accordingly, there is no rubbing friction resistance between the wire (W) and the guide 8 and cutting of the wire (W) in adjacency of a wire spool caused by the friction resistance with the guide 8 can be prevented. |
