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1. 发明公开

EP0516429A1 Drilling screw 失效
标题翻译： Selbstbohrende Schraube。
公开(公告)号：EP0516429A1
公开(公告)日：1992-12-02
申请号：EP92304862.3
申请日：1992-05-28
申请人： TOPURA CO., LTD
发明人： Nagushi, Eiichi , Akashi, Tetsuya , Iwasaki, Osami
IPC分类号： F16B35/06 , F16B23/00
CPC分类号： F16B23/0023 , F16B25/10 , F16B35/065 , Y10S411/919
摘要： Modification of the shape of a head part of a drilling screw resulting in an improved inserting performance when a punching operation is carried out, a fastening performance when the screw is seated, and a finishing process upon completion of fastening against a fastened member.
A seat (12) of the head part (6) has a frusto-conical surface, the outer circumference of the seat (12) being a curved concave surface. The upper surface (9) of the head part (6) is formed into a spherical concave surface. The head part (6) is provided with a plurality of slot facing projections (15) extending from the small diameter part (11b) at a lower portion of the head part (6) adjacent to a threaded shank part (4) of the screw along the curved concave surface of the seat surface (12) in a longitudinal direction. The upper surface (9) of the head part formed with a spherical concave surface is provided with chamfered portions (13) in which an opening edge of the engaging groove (10) of a cross-shaped hole is cut in a conical shape.
摘要翻译：钻孔螺钉的头部形状的改进，当进行冲压操作时导致改进的插入性能，当螺钉就座时的紧固性能以及完成对紧固构件的紧固后的精加工过程。头部（6）的座（12）具有截头圆锥形表面，座（12）的外周是弯曲的凹面。头部（6）的上表面（9）形成为球面凹面。头部（6）设置有多个面向凹槽的突出部（15），该突出部（15）在头部部分（6）的与螺钉的螺纹柄部分（4）相邻的下部处从小直径部分（11b）延伸，沿着座椅表面（12）的弯曲的凹形表面沿着纵向方向。形成有球面凹面的头部的上表面（9）设置有倒角部（13），其中十字形孔的接合槽（10）的开口边缘被切割成圆锥形。

2. 发明公开

EP0516430A1 Drilling screw 失效
标题翻译：钻螺丝
公开(公告)号：EP0516430A1
公开(公告)日：1992-12-02
申请号：EP92304863.1
申请日：1992-05-28
申请人： TOPURA CO., LTD
发明人： Nagushi, Eiichi , Iwasaki, Osami , Akashi, Tetsuya
IPC分类号： F16B35/06
CPC分类号： F16B35/065 , F16B23/00 , F16B25/10 , Y10S411/959
摘要： Modification to the shape of the head part (6) of a drilling screw resulting in an improved insertion performance of the drilling screw during a punching operation, a fastening performance of the drilling screw when seated as well as a finishing treatment upon completion of the fastening against a fastened member.
The head part (6) comprises an upper large diameter part (13) formed with the first seat surface (12) of a frusto-conical shape whose outer circumference forms a curved concave surface and a small diameter part (15) forming a second seat surface (14) of a frusto-conical shape concentrically and integrally connected to a lower part of the large diameter part (13) and having its outer circumference formed as a curved concave surface, and an annular projecting edge (16) formed between the seated surfaces (12,14) of the two-stage curved concave surfaces.
An outer circumference of the small diameter part (15) is provided with a plurality of slot facing projections (16) extending in a longitudinal direction along the curved concave surface of the second seat surface (14).
摘要翻译：改变钻孔螺钉的头部部分（6）的形状，从而在钻孔操作期间改善钻孔螺钉的插入性能，钻孔螺钉在安装时的紧固性能以及在完成紧固时的精加工处理对紧固件。头部（6）包括上部大直径部分（13）和小直径部分（15），上部大直径部分（13）形成有外圆周形成弯曲凹面的截头圆锥形状的第一座面（12）和形成第二座部与所述大直径部分（13）的下部同心且整体连接并且其外周形成为弯曲凹表面的截头圆锥形的表面（14）;以及形成在所述就位的环形突出边缘（16）两级弯曲凹面的表面（12,14）。在小径部15的外周，沿着第二座面14的弯曲凹面设置有沿长度方向延伸的多个槽对向突起16。

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