To improve sealability between a boot and a housing of a steering device.SOLUTION: An electric power steering device 100 includes: a rack shaft 30 for turning wheels; a gear case 70 serving as a housing that houses the rack shaft 30 and includes an opening portion 71 from which the rack shaft 30 protrudes; a boot 80 covering the opening portion 71 of the gear case 70; and a boot band 90 serving as an annular band portion that presses the boot 80 toward an outer circumferential surface 72 of the gear case 70 to fix the boot thereto. The gear case 70 includes a pressed portion 75 of the outer circumferential surface 72, which is pressed by the boot band 90 and annular protrusions 76, 77, 78 and 79 protruding from the pressed portion 75 in a radial direction of the opening portion 71.SELECTED DRAWING: Figure 3
【課題】ステアリング装置のハウジングとブーツとの間のシール性を向上させる。【解決手段】電動パワーステアリング装置100は、車輪を転舵するためのラック軸30と、ラック軸30を収容しラック軸30が突出する開口部71を有するハウジングとしてのギヤケース70と、ギヤケース70の開口部71を覆うブーツ80と、ブーツ80をギヤケース70の外周面72に向けて押圧し固定する環状のバンド部としてのブーツバンド90と、を備え、ギヤケース70は、外周面72のうちブーツバンド90によって押圧される被押圧部75と、被押圧部75から開口部71の径方向に突出する環状の突出部76,77,78,79と、を有する。【選択図】図3
STEERING DEVICE
ステアリング装置
2022-07-19
Patent
Elektronische Ressource
Japanisch
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