| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a standard gasket configured by inserting a base material and an outer wall surface material to both sides of a flange of a flanged sleeve pipe, bonding the both sides of the flange with the base material and the outer wall surface material with adhesive, and tightly fitting them to the sleeve pipe before the adhesive is cured, to seal the gap between the sleeve pipe and the outer wall, while allowing the deviation produced in the sleeve pipe to fall within an allowable range even when the flange part is displaced before the adhesive is cured. <P>SOLUTION: The standard gasket includes a ring-shaped attachment base part 12 and a seal piece 13 of a lip-shaped cross-section, which is protruded from the attachment base part outer circumference, is retreated in the direction opposite the direction of pushing the gasket 11 into the wall pore 2, and is brought into elastic contact with a wall pore inner circumferential surface while being pushed into the wall pore 2. A protrusion 15 protrusively formed toward the attachment base part side is disposed on the seal piece 13. Even when the seal piece 13 is deflected and the sleeve pipe 3 is deviated in the wall pore, the deviation is controlled to the maximum deflection amount of the seal piece 13 until the protrusion 15 collides with the attachment base part 12. <P>COPYRIGHT: (C)2013,JPO&INPIT |
