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    • 4. 发明授权
    • Blind rivets and method for its manufacture
    • 盲铆钉及其制造方法
    • US5496140A
    • 1996-03-05
    • US352244
    • 1994-12-08
    • Richard GossmannEckhard Ditzel
    • Richard GossmannEckhard Ditzel
    • B21K1/60F16B5/04F16B19/08F16B19/10F16B13/04B21K1/44F16B13/06
    • F16B19/1054B21K1/60
    • A blind rivet includes a mandrel shaft having a head disposed at one axial end. A hollow rivet shell has a cylindrical shape including an inner cylindrical surface and an outer cylindrical surface. The rivet shell surrounds the mandrel shaft. The outer cylindrical surface has at least one attenuation groove, which includes at least two recesses. Each recess has a bottom surface that substantially forms a secant with respect to the outer cylindrical surface. A method of manufacturing a blind rivet comprises the steps of placing a mandrel shaft having a head within a hollow rivet shell, producing at least one attenuation groove in an outer cylindrical surface of the rivet shell after the placing step so that at least two recesses are formed. Each of the recesses has a bottom surface that substantially forms a secant with respect to the outer cylindrical surface.
    • 盲铆钉包括具有设置在一个轴向端部的头部的心轴轴。 中空铆钉外壳具有包括内圆柱形表面和外圆柱形表面的圆柱形形状。 铆钉壳围绕心轴。 外圆柱形表面具有至少一个衰减槽,其包括至少两个凹槽。 每个凹部具有相对于外圆柱形表面基本形成割线的底表面。 制造盲铆钉的方法包括以下步骤:将具有头部的心轴轴放置在中空铆钉壳内,在放置步骤之后在铆钉外壳的外圆柱形表面中产生至少一个衰减槽,使得至少两个凹槽 形成。 每个凹部具有相对于外圆柱形表面基本形成割线的底面。