| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique which can widen a grommet easily while improving protection performance of the grommet.SOLUTION: A grommet 100 is formed in a tube shape. The grommet 100 includes a bellows part 1 that convex mountain parts 2 formed along a hoop direction and concave valley part 3 formed along the hoop direction range alternately in an extending direction. At the mountain parts 2, multiple thick parts 21 and multiple thin parts 22 thinner than the thick part 21 are formed along the hoop direction and at different positions.SELECTED DRAWING: Figure 1 |
