公开(公告)号：US20140178148A1

公开(公告)日：2014-06-26

申请号：US13726536

申请日：2012-12-24

Applicant: SHU-CHIN HUANG

Inventor： SHU-CHIN HUANG

IPC: F16B25/10

CPC classification number: F16B25/103 ,  F16B25/0015 ,  F16B25/0084

Abstract: A flat drill end of a screw mainly includes a cylinder with a drill end having a thread wrapped around the cylinder, and a flat drill portion formed to the cylinder along to the drill end of the cylinder with a predetermined length. The thickness of the flat drill portion is less than a half of the width of the flat drill portion for receiving more debris and ejecting the debris during the drilling so as to form a drill screw capable of drilling fast and preventing split on to the working piece.

Abstract translation: 螺杆的平头钻头主要包括具有钻头端部的圆筒，该钻头端部具有围绕圆筒的螺纹，以及平坦的钻头部分，沿着圆柱体的钻头端部形成有预定长度。 扁平钻头部分的厚度小于平底钻头部分的宽度的一半，用于在钻孔期间接收更多碎屑和喷射碎屑，以便形成能够快速钻孔并防止分裂到工件上的钻螺丝 。

公开(公告)号：US20180238373A1

公开(公告)日：2018-08-23

申请号：US15956765

申请日：2018-04-19

Applicant: SHU-CHIN HUANG

Inventor： SHU-CHIN HUANG

IPC: F16B25/10 ,  F16B25/00

CPC classification number: F16B25/103 ,  F16B25/0015 ,  F16B25/0084

Abstract: A screw with a flat drilling end comprises a cylinder (1) with a thread (11) wrapped around and a flat drill portion (2) longitudinally extended from a distal end of the cylinder (1); a maximum thickness (T) of a transversal cross section of the flat drill portion (2) being less than a half of the maximum width (D) of the transversal cross section of the flat drill portion (2); the maximum width (D) of the transversal cross section of the flat drill portion (2) being smaller than an outer diameter of the thread (11) of the cylinder (1); the width and thickness of the transversal cross section of the flat dill portion (2) being reduced to a point tip end of the flat drill portion (2). Two opposite lateral sides form as sharp knife blades.

公开(公告)号：US20150063947A1

公开(公告)日：2015-03-05

申请号：US14014335

申请日：2013-08-29

Applicant: SHU-CHIN HUANG

Inventor： SHU-CHIN HUANG

IPC: F16B35/06

CPC classification number: F16B35/065 ,  F16B25/0057 ,  F16B25/103

Abstract: A screw capable of drilling holes easily and discharging dregs effectively includes a head; and a stem extending from a lower portion of the head. The head is formed by an upper portion and a lower portion. The upper portion is a round disk. The annular ring of the round disk of the head is formed with a plurality of inclined protrusion. The recesses between the protrusions extend from an inner edge of the round ring to an outer edge of the round ring and are arranged along un-radial paths. A periphery of the lower portion of the head is formed with at least one knife sheet which extends from the annular ring of the round disk of the head to the stem; and the direction of the knife sheet is inclined to an axis of the lower portion of the head.

Abstract translation: 能够容易地钻孔和排出渣的螺杆有效地包括头部; 以及从头部的下部延伸的杆。 头部由上部和下部形成。 上部是圆盘。 头部的圆盘的环形环形成有多个倾斜突起。 突起之间的凹部从圆环的内边缘延伸到圆环的外边缘并且沿着非径向路径布置。 头部下部的周边形成有从头部的圆盘的环形环延伸到杆的至少一个刀片; 并且刀片的方向相对于头部的下部的轴线倾斜。