Motor operated power steering device

Details Motor operated power steering device Motor operated power steering device

1996-06-04

1998-04-14

Sotelo, Jesus D.

Motor vehicles

Steering gear

With electric power assist

74388PS, B62D 504

Patent

active

057381836

ABSTRACT:
In a motor operated power steering device, a drive shaft accommodation hole in a housing communicates with a opening for fitting a steering assistance power generation motor. In the accommodation hole, a drive shaft, which is driven by the motor, is supported by rolling bearings at two separate points along the axial direction. A steering shaft is linked to a driven gear which meshes with a driving gear provided around the outer circumference of the drive shaft. Around the outer circumference of the drive shaft, there is a ring shaped preload applying member, the outer circumference of which has a male threaded section. The preload applying member is screwed into a female threaded hole, which is concentric with the accommodation hole, in between the motor and the rolling bearing closest to the motor, so that it is able to apply preload along the axial direction to both rolling bearings.

REFERENCES:
patent: 4967858 (1990-11-01), Kotake et al.
patent: 5454438 (1995-10-01), Chikuma

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