发明授权
US4290288A Device for narrowing the breadth of a sheet spring material in an
apparatus for manufacturing a taper leaf spring
失效
用于在用于制造锥形板簧的装置中使板簧材料的宽度变窄的装置
- 专利标题： Device for narrowing the breadth of a sheet spring material in an apparatus for manufacturing a taper leaf spring
- 专利标题（中）： 用于在用于制造锥形板簧的装置中使板簧材料的宽度变窄的装置
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申请号： US43837申请日： 1979-05-30
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公开(公告)号： US4290288A公开(公告)日： 1981-09-22
- 发明人: Mitsushige Kawakubo , Yoshihiro Sakai , Akira Ohno
- 申请人： Mitsushige Kawakubo , Yoshihiro Sakai , Akira Ohno
- 申请人地址： JPX Yokohama
- 专利权人： NHK Spring Co., Ltd.
- 当前专利权人： NHK Spring Co., Ltd.
- 当前专利权人地址： JPX Yokohama
- 优先权： JPX53-64618 19780530
- 主分类号： B21B1/38
- IPC分类号： B21B1/38 ; B21B37/00 ; B21B37/22 ; B21B37/24 ; B21H7/00 ; B21B37/14 ; B21B1/20
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.
公开/授权文献
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