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    • 23. 发明授权
    • Self-piercing nut element and component assembly consisting of the nut element and a sheet metal part
    • 自刺螺母元件和组件组件由螺母元件和钣金件组成
    • US09249823B2
    • 2016-02-02
    • US12874092
    • 2010-09-01
    • Jiri BabejChristian SowaRichard HumpertMichael Vieth
    • Jiri BabejChristian SowaRichard HumpertMichael Vieth
    • F16B37/06
    • F16B39/282B23P19/064F16B37/068
    • A piercing nut element having a strength in the range between 700 and 900 MPa which is designed to be pressed into the sheet metal part. The nut element is characterized in that the self-piercing attachment of the nut element into a sheet metal part of higher strength, or into a sheet metal part with a thickness greater than 3.5 mm, the nut element is designed in such a way that the piercing section has a peripheral extending groove below the sheet metal contact surface and in that the piercing section has a piercing edge at its free end face with the piercing edge being spaced from the boundary of the groove adjacent to the piercing section by a peripheral surface having an axial height which corresponds to at least 30% and preferably to at least 50% of the sheet metal thickness, wherein the radial wall thickness of the piercing section in the region of its free end face from the outer side of the piercing section up to the nominal diameter of the thread corresponds to a thickness between 1.2 to 1.8 and preferably 1.5 times the intended sheet metal thickness.
    • 一种穿孔螺母元件,其强度在700和900MPa之间的范围内,被设计成被压入金属片部分。 螺母元件的特征在于,螺母元件的自刺穿附接到具有较高强度的金属片部分或厚度大于3.5mm的金属板部分中,螺母元件被设计成使得 刺穿部分具有在金属板接触表面下方的周边延伸槽,并且刺穿部分在其自由端面处具有刺穿边缘,其穿孔边缘与邻近穿孔部分的槽的边界间隔开, 轴向高度对应于金属板厚度的至少30%且优选至少50%,其中穿孔部分在其自由端的区域中的径向壁厚面从穿孔部分的外侧面向上 螺纹的公称直径对应于预期的金属板厚度的1.2至1.8之间的厚度,优选为1.5倍的厚度。