| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealing device capable of suppressing wear of a sliding part while maintaining sealing property. <P>SOLUTION: This sealing device is mounted in an annular channel 40 provided in a shaft hole of a housing 4 to seal an annular clearance between the housing 4 and a shaft 5 inserted into the shaft hole and is provided with an annular resin member 2 provided with a projecting part 20 protruding toward the shaft 5 and having a tip coming into slide-contact with the shaft 5. The projecting part 20 is constituted so as to use a low pressure side slope 20a and a high pressure side slope as both hems. A part on a higher pressure side than the projecting part 20 of the resin member 2 leaves the shaft 5 due to pressure P from the high pressure side H, an inclination angle between the high pressure side slope of the projecting part 20 and a peripheral face of the shaft 5 is increased, a part on a lower pressure side than the projecting part 20 of the resin member 2 approaches the shaft 5, and the low pressure side slope 20a of the projecting part 20 adheres closely to the peripheral face of the shaft 5. <P>COPYRIGHT: (C)2007,JPO&INPIT |
