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    • 4. 发明授权
    • Grommet
    • 索环
    • US6101674A
    • 2000-08-15
    • US298844
    • 1999-04-26
    • Hiroyasu FuruyaKeiichiro Soma
    • Hiroyasu FuruyaKeiichiro Soma
    • B60R16/02F16L5/02F16L5/10H01B17/58H02G3/22F16L5/00
    • F16L5/10B60R16/0222Y10T16/05
    • In a conventional grommet, that portion of a tapering, reduced-diameter portion, extending from an insertion hole of a minimum diameter to an insertion hole of a maximum diameter, is linearly varying. Therefore, when enlarging the diameter of the reduced-diameter portion, a large diameter-enlarging force is required, and the efficiency of the operation is low. A grommet 21 of the invention includes a mounting base portion 27 of a different-diameter tubular shape having a larger outer-diameter portion 23 at one end thereof and a smaller outer-diameter portion 25 at the other end thereof, and an annular groove 31 for fitting on a peripheral edge of a hole, formed through a panel of a vehicle, is formed in an outer peripheral surface of the larger outer-diameter portion 23, and the interior of the mounting base portion 27 defines a passage space 29 for a wire harness. A cylindrical portion 33 is formed on and extends continuously from the smaller outer-diameter portion 25 of the mounting base portion 27, and an inner periphery of the cylindrical portion corresponds to a wire harness having a maximum outer diameter. A truncated cone-shaped portion 37 is formed on and extends continuously from a distal end of the cylindrical portion 33, and the truncated cone-shaped portion has an open distal end corresponding to a wire harness having a minimum outer diameter.
    • 在传统的垫圈中,从最小直径的插入孔延伸到最大直径的插入孔的渐缩的直径减小部分的部分是线性变化的。 因此,在扩大直径缩径部的直径的情况下,需要大直径扩大力,操作效率低。 本发明的索环21包括:其一端具有较大外径部分23和另一端较小外径部分25的不同直径管状形状的安装基部27和环形槽31 在较大的外径部23的外周面形成有用于安装在通过车辆的面板形成的孔的周缘上,并且安装基部27的内部限定了用于 线束。 圆筒部33形成在安装基部27的较小的外径部25上并连续地延伸,圆筒部的内周对应于具有最大外径的线束。 截头圆锥形部分37形成在圆柱形部分33的远端上并连续地延伸,并且截锥形部分具有对应于具有最小外径的线束的开口远端。