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1. 发明申请

WO03002880B1 COMBINATION OF SCREW WITH SCREWDRIVER BIT AND HEADER PUNCH FOR MANUFACTURING SCREW 审中-公开
标题翻译：螺丝刀和螺丝刀组合螺丝
公开(公告)号：WO03002880B1
公开(公告)日：2003-03-06
申请号：PCT/JP0206195
申请日：2002-06-21
申请人： TOTSU KATSUYUKI
发明人： TOTSU KATSUYUKI
IPC分类号： B21K1/46 , B25B15/00 , F16B23/00 , B21K1/48
CPC分类号： B25B15/005 , B21K1/463 , F16B23/0023
摘要： A combination of a screw with a screwdriver bit capable of effectively preventing the cam-out event of the screwdriver bit by improving the formation of a groove part in the cross groove of the screw so as to prevent the screw from being damaged and capable of remarkably increasing a working efficiency by always achieving an appropriate and rapid screw tightening operation even if the cross groove portion of the screw is damaged, and a header punch for manufacturing the screw, the header punch comprising the screw 30 having cutout step parts 36 of generally right triangle shape in cross section provided at the center parts of the tilted groove parts 32a of a bit fitted groove 32 formed in a cross groove at a screw head part 30a and a screwdriver bit 50 having projected parts 56 of generally triangle in cross section matching the cutout step parts formed at the center part of the tilted groove parts of the screw provided at the center part of the tilted end edge parts 52a of a flat-shaped blade part 52 and having the tip faces of the blade part 52 formed as conical projected parts 54.
摘要翻译：螺杆与螺丝刀的组合，通过改善螺钉的横槽中的槽部的形成，能够有效地防止螺丝刀钻头的凸出事件，从而防止螺丝损坏并且能够显着地即使螺钉的横沟部分被破坏，总是能够实现适当和快速的螺丝紧固操作，以及用于制造螺钉的集管冲头，从而提高了工作效率，头部冲头包括螺丝30，螺钉30具有大致正确的切口步骤部分36 设置在形成在螺钉头部30a的十字槽中的钻头安装槽32的倾斜槽部32a的中心部分的截面的三角形形状以及具有与截面相同的横截面大致三角形的突出部56的螺丝刀头50的螺丝刀头50 形成在设置在平坦形状的倾斜端部边缘部分52a的中心部分处的螺钉的倾斜槽部分的中心部分处的切口阶梯部分叶片部分52的尖端面形成为圆锥形突出部分54。

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