| 摘要 |
PURPOSE:To make a device compatible with a duct of various diameters by connecting a plate of cut dross sticking prevention jig to an attachment mounted on the outer circumference of a bar-shaped body through a link mechanism. CONSTITUTION:An appropriate number of attachments 9 are fixed on the outer circumference of a bar-shaped body 8, an attachment 9 and plate 7 are connected by a link mechanism 10. When a screw shaft 11 is screwed into a screw hole at an end part of the bar-shaped body 8, the plate 7 is moved in contrast to the attachment 9, extending/contracting in the radial direction by the action on the link 10. As a result, a blade shape cutting device 5 is adjusted so as to fit to various ducts of different diameters. By this method, a cut dross is not stuck on the inside of duct. Also, a cut off piece is simply removed, keeping a duct round. Accordingly, the exhaust of cutting smoke becomes easy. |
