| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase bond strength between an insulation paper and an insulation tube. <P>SOLUTION: An insulation tube 53 has stepped peripheral surfaces 53-1 and 53-2 formed as annular grooves. The peripheral surfaces of openings 53a and 53b of the insulation tube 53 are formed as tapered surfaces, and the tapered surfaces are used as guiding parts 53c and 53d for guiding the cylindrical parts 51b and 52b of insulation paper 51 and 52 to be fitted into the stepped peripheral surfaces 53-1 and 53-2. In this way, the cylindrical part 51b of the insulation paper 51 fits into the stepped peripheral surface (the annular groove) 53-1 of the insulation tube 53, and disengagement of the cylindrical part 51b is prevented by the side wall of the groove of the stepped peripheral surface 53-1. Also, the cylindrical part 52b of the insulation paper 52 fits into the stepped peripheral surface (the annular groove) 53-2 of the insulation tube 53, and disengagement of the cylindrical part 52b is prevented by the side wall of the groove of the stepped peripheral surface 53-2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
