发明名称 |
Device for narrowing the breadth of a sheet spring material in an apparatus for manufacturing a taper leaf spring |
摘要 |
A device for narrowing the breadth of a sheet spring material in an apparatus for manufacturing a taper leaf spring by which the sheet spring is previously subjected to breadth narrowing operation with edge rollers before taper rolling. A shape for narrowing the breadth of a sheet spring material is calculated so that a product after rolling may be within the tolerance. Then, a shape of template thus obtained is detected by a pair of detecting rollers to regulate the interval between the work rollers automatically before taper rolling.
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申请公布号 |
US4290288(A) |
申请公布日期 |
1981.09.22 |
申请号 |
US19790043837 |
申请日期 |
1979.05.30 |
申请人 |
NHK SPRING CO., LTD. |
发明人 |
KAWAKUBO, MITSUSHIGE;SAKAI, YOSHIHIRO;OHNO, AKIRA |
分类号 |
B21B1/38;B21B37/00;B21B37/22;B21B37/24;B21H7/00;(IPC1-7):B21B37/14;B21B1/20 |
主分类号 |
B21B1/38 |
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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