A grommet includes an umbrella-shaped member that is separate from a grommet body. The umbrella-shaped member has a covering portion that covers an insertion hole of a sound insulator provided on one surface of a vehicle body panel. The covering portion is inclined to increase in diameter toward the sound insulator. The grommet body has an engagement portion that axially locks to a front end of the covering portion, which is the front end of the umbrella-shaped member.
1. A grommet interposed between a coupling hole of a vehicle body panel and a wire harness passed through the coupling hole, the grommet comprising:
a grommet body including a tube that surrounds a periphery of the wire harness in a state contacting the wire harness, and a sealing portion that is in contact with an edge of the coupling hole; and
an umbrella-shaped member that is separate from the grommet body, wherein
the umbrella-shaped member includes a covering portion that covers an insertion hole of a sound insulator arranged on one surface of the vehicle body panel,
the covering portion is inclined so as to increase in diameter toward the sound insulator,
the covering portion includes a large-diameter end that contacts a surface of the sound insulator, and the large-diameter end is a rear end of the umbrella-shaped member, and
the grommet body includes an engagement portion engaged, in an axial direction of the grommet body, with a front end of the umbrella-shaped member that is an end opposite the rear end of the umbrella-shaped member.
2. The grommet according to claim 1 , wherein:
the engagement portion is located radially outward from the tube; and
the engagement portion faces the tube with a gap in between.
3. The grommet according to claim 2 , wherein:
the grommet body includes an extension located at a radially outer side of the tube and extending in an axial direction of the tube;
the extension faces the tube with a gap in between; and
the engagement portion is arranged on the extension.
4. The grommet according to claim 1 , wherein:
the engagement portion includes a projection that projects toward the rear end of the umbrella-shaped member; and
the projection is located at a radially outer side of the umbrella-shaped member.
5. The grommet according to claim 4 , wherein the projection is located at a radially outer side of the covering portion of the umbrella-shaped member.
6. The grommet according to claim 1 , wherein the front end of the umbrella-shaped member is a small-diameter end of the covering portion.
7. The grommet according to claim 1 , wherein:
the grommet body includes an extension that is continuous with the engagement portion and has an extension length in the axial direction; and
the extension length of the extension of the grommet body allows the front end of the umbrella-shaped member to move in the axial direction along the extension.
8. The grommet according to claim 7 , wherein:
the extension includes a tubular outer circumferential surface having a first outer diameter;
the engagement portion projects radially outward from the extension so as to have a second outer diameter that is larger than the first outer diameter; and
the front end of the umbrella-shaped member includes an inner circumference edge having an inner diameter that is larger than the first outer diameter and smaller than the second outer diameter.