| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a knurling processing apparatus which is improved in the accuracy of the prevention of the winding displacement of a film roll. <P>SOLUTION: The knurling processing apparatus 10 applies knurling processing to a resin film 50 while pressing the resin film 50 between a first knurling roll 20 and a second knurling roll 30. Circumferentially extending protrusions 24 are formed at the outer circumferential surface 29 of the first knurling roll 20 where the top 25 of the protrusion is flat and the flat surface abuts on the outer circumferential surface 39 of the second knurling roll through the resin film 50. Circumferentially extending protrusions 34 which push the resin film 50 in a groove 26 formed between the protrusions 24 of the first knurling roll 20, are formed at the outer circumferential surface 39 of the second knurling roll 30. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
