发明授权
- 专利标题: Flanged nut fastener strip
- 专利标题(中): 法兰螺母紧固条
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申请号: US105961申请日: 1979-12-21
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公开(公告)号: US4306654A公开(公告)日: 1981-12-22
- 发明人: William L. Grube
- 申请人: William L. Grube
- 申请人地址: IL Mundelein
- 专利权人: MacLean-Fogg Company
- 当前专利权人: MacLean-Fogg Company
- 当前专利权人地址: IL Mundelein
- 主分类号: B21D53/24
- IPC分类号: B21D53/24 ; B21K1/66 ; F16B27/00 ; B65D85/24 ; F16B37/04
摘要:
A strip of fasteners such as pierce nuts is formed from a metal blank with no scrap resulting from the provision of a spacing between adjacent nut bodies, and without the difficulty and expense incident to attaching nut bodies to connecting elements. The body portion of a laterally flanged blank is severed in the transverse direction to separate nut bodies from the blank without fracturing the flanges. The flanges are severed in the longitudinal direction to form severed longitudinally extending flange segments integral at both ends with unsevered flange segments. When the flanges are straightened, the stretching of the severed flange segments resulting from shearing provides a spacing between adjacent nut bodies in the strip. The strip includes spaced apart nut bodies interconnected by continuous lateral flanges. The flanges include unsevered lateral flange segments integral with both sides of each nut body, and severed flange segments integral at both ends with the unsevered flange segments. Elongation of the severed flange segments provides spacing between adjacent nut bodies.
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