| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for producing a tube for sprinkling which can easily prevent the penetration from either side to the other side of a tube folded and made into a tape shape. <P>SOLUTION: In the method for producing a tube for sprinkling, while carrying a tube folded and made into a tape shape, at least one side of the tube is sucked in such a manner that the inside of the tube is expanded, and the tube is irradiated with a laser beam at prescribed intervals so as to be drilled. The device 1 for producing a tube for sprinkling includes: a carrying means (coiling roll 80) of carrying a tube T<SB>2</SB>folded and made into a tape shape; suction machines (the first suction machine 30, the second suction machine 40) arranged at least at one side of the tube T<SB>2</SB>carried by the carrying means; and a laser beam generator 60 of irradiating the tube T<SB>2</SB>whose inside has been expanded by the suction machines with a laser beam. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
