| 摘要 |
<p>PURPOSE: To improve the sealing property on a pipe by facilitating the extraction of a product from a die, improving the following property for the drift of the pipe, and absorbing the drift. CONSTITUTION: This grommet 1 is provided with a thin boot 11 on the inner periphery of a fitting base 10, and a rib 12 is provided integrally with the boot 11. The boot 11 is constituted of a conical film section 11a having an insertion hole 13 to be inserted with a pipe 3 at the center section and an intermediate film section 11b folded from the outer peripheral edge of the conical film section 11a to the opposite side to the conical film section 11a, expanded conically, and connected to the inner peripheral end of the fitting base 10 from its outer peripheral edge. The rib 12 regulates the displacement in the axial direction of the conical film section 11b against the fitting base 10, and it connects the conical film section 11a and the intermediate film section 11b of the boot 11. The connecting position of the rib 12 to the conical film section 11a and the connecting position of the rib 12 to the intermediate film section 11b are driftingly provided in the peripheral direction of the boot 11.</p> |
