RACK SHAFT FOR STEERING DEVICE AND MANUFACTURING METHOD FOR THE SAME

Japanese Patent JP2017136903

A

PROBLEM TO BE SOLVED: To provide a rack shaft for a steering device in which a first member having a first rack tooth, a second member having a second rack tooth and an intermediate member arranged between the first member and the second member can be jointed to one another without frictionally welding the members while keeping a relative angle between the first rack tooth and the second rack tooth at a predetermined angle, and a manufacturing method for the same.SOLUTION: A rack shaft 2 comprises: a first rack shaft 3 having a first rack tooth 3a to which is transmitted steering force of a steering wheel; a second rack shaft 4 having a second rack tooth 4a to which is transmitted steering assisting force; and an intermediate member 5, arranged between the first rack shaft 3 and the second rack shaft 4, which has at one end side thereof a first screw shaft 52 to be screwed to the second rack shaft 4 and has at the other end side a second screw shaft 53 to be screwed to the second rack shaft 4. The first screw part 52 and the second screw part 53 have a reverse thread relation.SELECTED DRAWING: Figure 1

YANO SHIN
MURAKAMI HIROAKI

JP2016017855A

August 10, 2017

February 02, 2016

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JTEKT CORP

B62D3/12; B62D5/04; F16H19/04

JP2014046803A	2014-03-17
JP2013010373A	2013-01-17
JP2014234882A	2014-12-15
JP2000199506A	2000-07-18
JP2006159962A	2006-06-22
JP2005138709A	2005-06-02
JPS6280753U	1987-05-23
JP2015054563A	2015-03-23

KR20060030260A	2006-04-10
US20140209407A1	2014-07-31

Tadao Hirata
Takashi Nomiyama
Hiroyuki Ito

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