| 摘要 |
PROBLEM TO BE SOLVED: To effectively block infiltration of high-pressure water while suppressing increase of the cost of manufacture by devising a shape or the like of a grommet itself for sealing between a through hole formed in a wall part and a piping member inserted into the through hole.SOLUTION: A grommet comprises: a mounting part 2 formed from a core metal 2A and a covering elastic body 2B covering the core metal 2A, the mounting part having an inner diameter formed larger than that of a through hole B, and mounted to a mounted part D of a wall part A; an annular-plate-shaped elastic body 3 connected to the covering elastic body 2B and extending inside in a radial direction; and an annular-shaped seal elastic body 4 connected to an inner circumferential surface of the annular-plate-shaped elastic body 3 and expanded larger than the ring-plate-shaped elastic body 3. In the state where the annular-plate-shaped elastic body 3 is elastically deformed to be bent in an inserting direction of a piping member C, the annular-plate-shaped seal elastic body 4 is brought into press-contact with an outer circumferential surface of the piping member C, the annular-plate-shaped seal elastic body 4 is held so as not to slide with respect to the piping member C, and the annular-plate-shaped elastic body 3 is elastically deformed to absorb eccentricity of the through hole B and the piping member C. |
