Title:
RACK BAR POLISHING METHOD
Document Type and Number:
Japanese Patent JP2022148341
Kind Code:
A
Abstract:
To provide a rack bar polishing method for manufacturing a rack bar that can reduce friction resistance with a bearing member in a steering device and is easy to engage with a tooth part of a pinion in the steering device.SOLUTION: In a rack bar polishing method, a rack bar can slide with respect to a bearing member that supports the rack bar when being incorporated into a steering device, and includes a shaft member. The shaft member includes a rack part formed with a rack engaging with a pinion and a slide surface that is in slide contact with the bearing member. The rack part includes a plurality of tooth parts. The slide surface is polished with a polishing member by varying an allowance amount of the slide surface located on the other side facing a thickness direction of the rack part such that a height of each of the tooth parts from the slide surface is a predetermined height.SELECTED DRAWING: Figure 7
Inventors:
AKITA HIDEAKI
TOMURA TAKESHI
SUNAGA YORIMASA
TOMURA TAKESHI
SUNAGA YORIMASA
Application Number:
JP2021049980A
Publication Date:
October 06, 2022
Filing Date:
March 24, 2021
Export Citation:
Assignee:
NETUREN CO LTD
International Classes:
B24B19/08; B23P15/14
Attorney, Agent or Firm:
Fujimoto Partners Corporation