公开(公告)号：US11377138B2

公开(公告)日：2022-07-05

申请号：US16758483

申请日：2018-10-25

Applicant: NSK LTD.

Inventor： Takayuki Ishii

IPC: B62D5/04

Abstract: A gear housing for an electric power steering device has a front-side housing and a rear-side housing. The front-side housing has a worm wheel housing portion, a worm housing portion, and reinforcing ribs. The worm wheel housing portion has a worm wheel cylindrical portion and a ring shaped worm wheel bottom portion bent inward in a radial direction from a front end portion of the worm wheel cylindrical portion. The worm housing portion is provided on a part in a circumferential direction of an outer-diameter side portion of the worm wheel housing portion. The reinforcing ribs are provided on a front side surface of the front-side housing, extend in a direction in which an engagement reaction force acts between the worm wheel and a worm of the worm shaft, and span between the worm housing portion and the worm wheel bottom portion.

公开(公告)号：US09969420B2

公开(公告)日：2018-05-15

申请号：US15123002

申请日：2014-10-22

Applicant: NSK LTD.

Inventor： Takayuki Ishii ,  Seiichi Moriyama ,  Shin Mihara

IPC: B62D1/184 ,  B62D1/189

CPC classification number: B62D1/184 ,  B62D1/189

Abstract: At least one of the vehicle body side through holes and the column side through hole is an adjusting long hole which is long in a direction in which a position of the steering wheel can be adjusted. A base end portion of the adjusting lever includes a lever side through hole penetrating through the base end portion in the width direction. The adjusting rod is press-fitted into the lever side through hole.