| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a seal capable of preventing burst even if high pressure injection fluid acts on it. <P>SOLUTION: This seal is composed of an oil seal 4 capable of preventing injection fluid from leaking to the outside from between an outer face of a slide member and a tip of a seal lip 8 provided on an inner peripheral side of a main body by bringing the seal lip into slide-contact with the outer face of the slide member and a piece-shaped packing or a U-shaped packing. The outer face of the seal lip on which injection fluid acts is formed into a tapered face or curved face shape at an angle of 45 degrees or more or at 45 degrees or less for the slide member. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
