| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oil seal structure of telescopic cover which is excellent in followability for clearance changes in a fitting part between cylindrical bodies, capable of surely preventing a lubricating oil from leaking and requiring no accessory facilities for receiving the leaked lubricating oil, capable of smoothly performing an extension and shrinkage operation of the telescopic cover, and capable of improving assembly workability for the fitting part between the cylindrical bodies of oil seals. <P>SOLUTION: A cross-sectional shape of an oil seal 24 has a shape which is comprised of a rectangular shaped pedestal part 24a fitted at inner peripheral surface side of cylindrical body 22 located at outside via a seal receiving 26, a main part 24c projected in width direction from a central part of the pedestal part 24a to the inner peripheral side, and a lip part 24b extended in a truncated chevron shape from the main part 24c to the inner peripheral side and pressed to the outer peripheral surface of the cylindrical body 22 located at inside. <P>COPYRIGHT: (C)2012,JPO&INPIT |
