Patent attributes
A grommet, made of an elastic body, is externally mounted on a group of electric wires to be spanned between a car-body panel and a movable body consisting of a door or a trunk lid coupled to the car-body panel through a hinge member. The grommet has large-diameter cylindrical parts which are disposed on one and other ends thereof in a longitudinal direction thereof and have an annular locking groove respectively to be inserted into and locked to a through-hole formed through the car-body panel and a through-hole formed through the trunk lid respectively; small-diameter cylindrical parts continuous with the large-diameter cylindrical parts respectively; and a bellows-like cylindrical part provided between the small-diameter cylindrical parts with the bellows-like cylindrical part continuous with the small-diameter cylindrical parts.