Title:
STEERING DEVICE AND METHOD OF MANUFACTURING STEERING DEVICE
Document Type and Number:
Japanese Patent JP2019014358
Kind Code:
A
Abstract:
To provide a steering device which can have a driven pulley and a ball screw nut arranged axially with precision while securing smooth operation of a ball screw mechanism, and a method of manufacturing the steering device.SOLUTION: A driven pulley 44 is arranged axially at an outer periphery of a rack shaft 12, and fitted through an alignment structure 48 rotatably together with a ball screw nut 51 in one body. The alignment structure 48 comprises a plurality of lock grooves 61 formed on an inner peripheral surface of the driven pulley 44, a plurality of installation grooves 62 formed on an outer peripheral surface of the ball screw nut 51 to face the respective lock grooves 61 in radial directions, and an elastic member 63. The elastic member 63 has a pair of base parts 63a, 63b and a spring part 63c provided integrally between the base parts 63a, 63b, which are installed at the installation grooves 62 while leaving gaps with peripheral side faces 62b, 62c, and a spring part 63c is arranged between the installation groove 62 and the lock groove 61 while locked to inner surfaces 61a, 61b of the lock groove 61 to be compressed radially.SELECTED DRAWING: Figure 3
Inventors:
OHASHI TATSUYA
Application Number:
JP2017132672A
Publication Date:
January 31, 2019
Filing Date:
July 06, 2017
Export Citation:
Assignee:
JTEKT CORP
International Classes:
B62D5/04; F16C27/06; F16H19/02; F16H25/24
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda