JPS60122274U

JPS60122274U - Electric power steering device

Info

Publication number: JPS60122274U
Application number: JP879884U
Authority: JP
Inventors: 裕也宮崎; 直樹斉藤; 明会田
Original assignee: 日本精工株式会社
Priority date: 1984-01-25
Filing date: 1984-01-25
Publication date: 1985-08-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の実施例の全体図、第２図は第１実施例
の主要部分の断面図、第３図はラックプッシュ部分の断
面図、第４図は軸受部の拡大図、第５図は第２実施例の
主要部分の部分断面図、第６図は減速機構を例示する図
である。〔主要部分の符号の説明〕、４．１１〜１３・・・制御
手段、５・・・ピニオン軸、７．３７・・・ラック軸、
８，３８・・・電動機、１６・・・ピニオン部、１７・
・・ラック部、２５．５５・・・雌ネジ部、２９．５９
・・・雄ネジ部。１−一） −門Fig. 1 is an overall view of the embodiment of the present invention, Fig. 2 is a sectional view of the main parts of the first embodiment, Fig. 3 is a sectional view of the rack push part, Fig. 4 is an enlarged view of the bearing part, FIG. 5 is a partial sectional view of the main parts of the second embodiment, and FIG. 6 is a diagram illustrating the speed reduction mechanism. [Description of symbols of main parts], 4.11 to 13... Control means, 5... Pinion shaft, 7.37... Rack shaft,
8, 38... Electric motor, 16... Pinion part, 17.
...Rack part, 25.55...Female thread part, 29.59
...Male thread part. 1-1) -gate

Claims

[Scope of Claim for Utility Model Registration] 1. A pinion shaft that receives steering input, a rack shaft that has a rack part that engages with the pinion part and is interlocked with steering wheels, and a rack part that is separate from the rack part of this rack shaft. A male threaded part formed on the part, a female threaded part that is directly screwed to the male threaded part and rotatably supported by a bearing, an electric motor that transmits output to the female threaded part, and a control signal that controls the electric motor. An electric power steering device characterized by having a control means for controlling. 2. The steering device according to claim 1, wherein the electric motor is disposed coaxially with the rack shaft. 3. The steering device according to claim 1, wherein the electric motor is disposed adjacent to the rack shaft. 4. The female threaded portion has an inner ring groove formed therein, a plurality of balls are disposed between the inner ring groove and the outer ring, and the female threaded portion is supported by a bearing, as set forth in claim 1 of the registered utility model. steering gear. 5. Utility model registration claim 1, in which the output of the electric motor is transmitted to the female screw portion via a reduction gear train including an idler.
Steering device as described in section. 6 Utility model registration in which the output of the electric motor is transmitted to the female screw part via a reduction gear train that performs deceleration in two stages. 7 Utility model registration in which the output of the electric motor is transmitted to the female screw part after being decelerated by a belt drive. A steering device according to claim 1.