| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a seal ring made of a synthetic resin and generating a lubrication film on the whole surface of a seal face without affected by burr formed in molding. <P>SOLUTION: In an abutment portion constituted of opposed abutments 121, 121' of the seal ring having a rectangular cross-section, the abutments 121, 121' are provided with a protrusion 122 on one of two rectangular cross-sectional parts possessed on an outer diameter face side of the seal ring when the abutment is divided into four rectangular cross-sectional parts by connecting central portions of two opposite sides of four sides of the rectangular cross section, a cut portion receiving the protrusion 122 is provided in the other of the two rectangular cross-sectional parts on the outer diameter face side, and the cut portion of the one abutment 121' is formed at a position where the protrusion of the other opposed abutment 121 is fitted. <P>COPYRIGHT: (C)2011,JPO&INPIT |
