Patent · US Expired

Electric power steering apparatus

US7413051B2 · kind B2 · utility

5Cited by
10References
8Claims
0Family size

Assignees

Inventor

Key dates

Filing dateMar 21, 2005
Grant dateAug 19, 2008
Priority date
Expiry dateOct 17, 2025

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H25/2219
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

Since a nut 45 is provided with paths for connecting rolling paths 23b, 45f and circulating paths 45c, that is, return paths 45d at end caps 45b, 45b attached to both ends of a main body 45a, a receiving portion for receiving power transmitted from an electric motor 35, that is, a driven gear portions 45e is provided at a center of an outer peripheral face on outer sides in a radius direction of the rolling paths and therefore, when power is transmitted from the electric motor 35 to the driven gear portion 45e, smooth operation can be carried out by restraining the nut 45 from being twisted.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.