Electric power steering device

A technology of electric steering system and steering column, which is applied in the direction of electric steering mechanism, steering column, steering control, etc., can solve the problems of increased weight, difficulty, and unrelieved problems, and achieve the effect of improving assembly efficiency and convenience

Inactive Publication Date: 2006-11-01
NSK LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the use of electric steering has brought many advantages in the steering of the car, the electric steering system of the column assist type must increase the weight generated by the electronic auxiliary unit, for example, when the steering column is installed on the car, Workers are forced to endure difficult work caused by the wobble of the steering column, which is not relieved when compared to a steering column with an electronic auxiliary unit on it

Method used

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Embodiment Construction

[0033] An embodiment of the present invention will be described below with reference to the accompanying drawings. exist figure 1 Among them, the electric steering system of the present invention has a steering column 1 and a steering upper shaft 2 , which is rotatably provided inside the steering column 1 . Although its description is omitted, as part of the energy absorbing steering column, the steering upper shaft 2 is divided into an outer shaft and an inner shaft, and both shafts are slidably connected to each other by, for example, serrations. Furthermore, the steering column 1 is divided into an outer column 3 and an inner column 4, and the two columns are slidably connected to each other.

[0034] The electric steering system includes an electronic auxiliary unit 5 formed continuously with the inner column 4 of the steering column 1 . The electronic auxiliary unit 5 has a worm wheel that rotates with an output shaft 7 housed in a gearbox 6 and that meshes with a wor...

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PUM

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Abstract

An electric power steering device, comprising an upper bracket, a steering column, a steering shaft rotatably fitted into the steering column, a tilt mechanism having a tilt clamp tightening the steering column between the tightening plate parts of the upper bracket and a tilt pivot swinging the steering column, an electric assist device installed at the lower end of the steering column, and a lower bracket fixed to a vehicle body on the anti-steering column side of the electric assist device and pivotally supporting the pivot shaft of the tilt pivot. The housing of the electric assist device is loosely engaged with the pivot shaft of the tilt pivot, the steering column is formed swingable about the pivot shaft, and a column rotation restriction part is installed between the lower bracket and the housing.

Description

technical field [0001] The present invention relates to an electric steering system designed to improve convenience in installing a steering column by moderate oscillation of the steering column. Background technique [0002] In recent years, a power steering system has been incorporated into the steering system of a motor vehicle in order to reduce the steering force consumed by the driver when steering the vehicle. The mainstream of those power steering systems currently in use is the electric power steering system in which steering assist is applied by an electric motor receiving power from a battery. In the electric steering system, it is preferable to use the column assist (column assist) method, in which an electric assist unit (electric assist unit) is installed in the steering column, thereby providing the necessary steering assistance at an appropriately reduced The speed transmits the driving force of the electric motor to the output shaft. [0003] Although the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D1/18B62D1/187B62D1/189B62D1/19B62D5/04
CPCB62D1/189B62D1/195B62D5/04
Inventor 三治广明五十岚正治角田知之
Owner NSK LTD
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