Grommet
DRIVE
January 19, 2011
Even if a wire harness that passes a grommet is bent sharply, a vehicle body latch recess of the grommet is not deformed, thereby enhancing a sealing function. A grommet includes: an inner tube for passing electrical cables in said wire harness in a close contact manner; and an outer tube continued to an outer peripheral surface of said inner tube and provided with a slant wall section. The slant wall section of the outer tube is provided with a curved portion at an outer diametrical position having an outer diameter corresponding to an inner diameter of the through-hole. The curved portion has a different inclination angle from the slant wall section. An inclination angle of an outer peripheral surface of the slant wall section at a larger diameter side with respect to the curved portion is set to be smaller than an inclination angle at a smaller diameter side with respect to the curved portion. A larger thickness portion is continued to a larger diameter end of the slant wall in parallel to an axial direction of the inner tube. A vehicle body latch recess is provided in an annual manner in an outer peripheral surface of a boundary area between the larger diameter end of the slant wall section and the larger thickness portion. A part from an inner peripheral surface of the larger thickness portion to an inner peripheral surface corresponding to the curved portion of the slant wall section extends in parallel to the axial direction of the inner tube. The part has a larger thickness. The slant wall section is provided on an outer peripheral surface with a plurality of stepped projecting ribs that extend from a smaller diameter end of the slant wall section to the larger diameter end and are spaced apart from one another in a peripheral direction. The slant wall section is provided in an inner peripheral surface of each stepped projecting rib with a recess that extends along a whole longitudinal length of the each stepped projecting rib.
Discussion in the ATmosphere