| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealing device capable of relieving stress concentration on a bellows part, when a shaft eccentrically rotates. <P>SOLUTION: This sealing device 100 seals an annular clearance between a housing having a shaft hole and a shaft inserted into the shaft hole and constituted so as to eccentrically rotate to the housing. The sealing device 100 has a fixing part 110 fixed to the inner peripheral side of the shaft hole of the housing, a thin bellows part 120 extending in a bellows shape toward a shaft surface from the fixing part 110, and a seal part 130 arranged on the inner peripheral end side of the bellows part 120 and slidably contacting with an outer peripheral surface of the shaft, and is characterized in that projection parts 121a and 121b extending in the peripheral direction for enhancing rigidity of the bellows part 120, are arranged only on a surface on a belly part 121 on the most inner peripheral side in the bellows part 120. <P>COPYRIGHT: (C)2010,JPO&INPIT |
