发明名称 |
RACK BAR AND METHOD FOR PRODUCTION THEREOF |
摘要 |
Disclosed herein are a rack bar and a method for production thereof. The rack bar is composed of a steel pipe (10) and an embedded metal core (14) placed therein. The steel pipe has rack teeth formed thereon by forging. The embedded metal core (14) is made of a metal softer than the steel pipe (10) and has its surface wave-shaped such that the bottom (20) is wide and the top (22) is narrow.
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申请公布号 |
US2012258329(A1) |
申请公布日期 |
2012.10.11 |
申请号 |
US201113167958 |
申请日期 |
2011.06.24 |
申请人 |
TANABE KEIJI;KONDO SEIKO CO., LTD. |
发明人 |
TANABE KEIJI |
分类号 |
B32B3/30;B21K1/76;B21K25/00;B21K29/00;B32B15/01 |
主分类号 |
B32B3/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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