公开(公告)号：WO2016017158A1

公开(公告)日：2016-02-04

申请号：PCT/JP2015/003792

申请日：2015-07-28

Applicant: NETUREN CO., LTD.

Inventor： KATO, Takashi ,  YAMAWAKI, Takashi

IPC: B21K1/76 ,  B62D3/12

CPC classification number: B62D3/126 ,  B21K1/768 ,  B62D5/0421 ,  B62D5/0448 ,  F16H25/2204 ,  F16H55/26

Abstract: Provided are a method of manufacturing a hollow rack bar including a rack portion that is engaged with a pinion gear and faces supported by a yoke easily and accurately, and the hollow rack bar. The hollow rack bar (10) includes: the rack portion (21) engaged with the pinion gear (29); and the supported faces (23) provided on a back side of teeth of the rack portion (21) and supported by the yoke (31). The rack portion (21) is formed by locating a toothed mold (39) on an outer face of a circular tube material, and inserting a cored bar (41) into the circular tube material to pressurize an inner face, thereby transferring a shape of the toothed mold (39). The supported faces (23) are formed by removal processing or deformation processing of a back side of the teeth rack portion (21) of the circular tube material.

Abstract translation: 本发明提供一种制造中空齿杆的方法，该中空齿条具有与小齿轮啮合的齿条部和容易且准确地由轭支撑的面和中空齿条。 空心齿条（10）包括：与小齿轮（29）接合的齿条部分（21）; 以及设置在所述齿条部（21）的齿的后侧并由所述轭（31）支撑的所述支撑面（23）。 齿条部（21）通过将圆形模具（39）定位在圆形管材的外表面上，并将芯棒（41）插入圆形管材以对内表面进行加压而形成，从而将形状 齿形模具（39）。 支撑面（23）通过圆管材的齿齿部分（21）的后侧的去除处理或变形处理而形成。