| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a slip ring wherein an abnormality in quality such as burrs or warpage is not easily caused, and a large creepage distance can be secured. SOLUTION: In this manufacturing method of the slip ring having a plurality of conductive patterns 90 concentrically formed while having different diameters, walls 5 which are concentric with the conductive patterns 90 are formed between the adjacent conductive patterns 90 by making a nozzle discharge a paste-like insulating resin, and the walls 5 are heated and dried. A process to form the walls 5 and a process to heat and dry the walls 5 are repeated a plurality of times. Thereby, the cross section of the wall takes the form of a log. COPYRIGHT: (C)2009,JPO&INPIT
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