公开(公告)号：WO2016152146A1

公开(公告)日：2016-09-29

申请号：PCT/JP2016/001645

申请日：2016-03-22

Applicant: NETUREN CO., LTD.

Inventor： YAMAWAKI, Takashi ,  SUNAGA, Norimasa

IPC: B62D3/12

CPC classification number: F16H55/26 ,  B21K1/767 ,  B21K1/768 ,  B23P15/14 ,  B24B5/22 ,  B62D3/126

Abstract: A rack bar (1, 21, 31) includes a shaft member (S1) having a toothed section (2, 12, 22). The toothed section (2, 12, 22) has a plurality of rack teeth (3, 13, 23), and extends over a portion of an entire length of the shaft member (S1) along a longitudinal direction of the shaft member (S1). The shaft member (S1) has a grinding-finished outer peripheral surface extending over the entire length of the shaft member (S1) including the toothed section (2, 12, 22). A method for manufacturing the rack bar (1, 21, 31) includes forming the toothed section (2, 12, 22) by plastic working and grinding the outer peripheral surface to improve shape accuracy.

Abstract translation: 齿条（1,21,31）包括具有齿部（2,12,22）的轴构件（S1）。 齿形部分（2,12,22）具有多个齿条齿（3,13,23），并且沿着轴构件（S1）的长度方向在轴构件（S1）的整个长度的一部分上延伸 ）。 轴构件（S1）具有在包括齿形部分（2,12,22）的轴构件（S1）的整个长度上延伸的磨削外周表面。 一种用于制造齿条（1,21,31）的方法包括通过塑性加工和磨削外周表面来形成齿形部分（2,12,22）以提高形状精度。