| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a seal structure capable of securing a sealing property between a shaft body and a sleeve, and between the sleeve and a wall body while making the shaft body perform a linear action in an axial direction, and a neck shaking action at which an axial angle is varied. <P>SOLUTION: The seal structure supports the shaft body 14 which penetrates a through hole 13a formed at the wall body 13 so as to proceed or retreat, and to move the neck in the axial direction, and seals the wall body 13 and the shaft body 14. The seal structure includes: a sleeve 15 provided in the through hole 13a which allows the shaft body 14 to pass through at the outer peripheral side of which a spherical seat 15a is formed; a concave surface 16a which is formed at the wall body 13 side, and supported so that the spherical seat 15a can slide; a disk spring 18 for energizing the spherical seat 15a toward the concave surface 16a; and a gland packing 19 for sealing the sleeve 15 and the shaft body 14. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
