公开(公告)号：EP1693577A4

公开(公告)日：2008-03-26

申请号：EP04818484

申请日：2004-11-04

申请人： TOTSU KATSUYUKI

发明人： TOTSU KATSUYUKI

IPC分类号： B21K1/46 ,  B21K1/48 ,  B25B15/00 ,  F16B23/00

CPC分类号： B21K1/463 ,  B25B15/005 ,  F16B23/0007

摘要： A screw having stabilized strength, combination with a driver bit that best fits the screw, and a header punch for producing the screw. The screw having stabilized strength has letter Y-shaped bit-fitting grooves formed in the head portion of the screw. Forming the grooves makes fitting of a corresponding driver to the screw easy, prevents occurrence of a cam-out phenomenon to enhance work efficiency, makes torque transmission to be made smoothly and sufficiently, and stabilizes strength. The bit-fitting grooves are formed in a letter Y shape that is substantially equally divided into three sections in the circumferential direction, the grooves being formed at positions required distances away from the central portion of the screw head. The width of each of the grooves extending in radial directions from the central portion of the bit-fitting grooves is set so that the grooves are gradually expanded and substantially equally spaced with spacings each equal to the width of a boundary section between adjacent grooves. Further, the outer peripheral end wall surface of each bit-fitting groove is made substantially vertical from an opening edge section up to a required depth. The outer peripheral end wall surface is displaced downward from a lower edge section of the wall surface toward the central portion of the screw head, and the center where the wall surfaces meet are formed as a substantially conical bottom surface.

公开(公告)号：EP1245839A4

公开(公告)日：2006-07-05

申请号：EP00985868

申请日：2000-12-25

申请人： TOTSU KATSUYUKI

发明人： TOTSU KATSUYUKI

IPC分类号： B21K1/46 ,  B21K1/48 ,  B25B15/00 ,  F16B23/00

CPC分类号： B25B15/005 ,  B21K1/46 ,  B21K1/463 ,  B21K1/48 ,  F16B23/0023

摘要： A combination of a screw and a screw driver bit and a header punch for its manufacture capable of effectively preventing a come-out phenomenon of the screw driver bit by improving the structure of a groove part in a cross groove of a screw to prevent a conventional damage to the screw and remarkably increasing a working efficiency by always achieving a proper and rapid screw tightening operation even if the cross groove portion of the screw is damaged, wherein the screw is formed so that a bit fitted groove formed of the cross groove is provided in a screw head part, a specified tilted groove part is formed in the direction from the end edge part of the bit fitted groove to the center part of a screw neck part, a roughly conical bottom face is formed at a cross center part, the end edge part of the bit fitted groove is formed as a generally vertical end wall part of a specified depth, a groove part with an inclination angle of beta is formed in the direction from the lower edge part of the end wall part to the conical bottom face at the center part of the screw neck part, and the conical bottom face is formed with a gentle inclination angle alpha of approx. 28 DEG .

公开(公告)号：EP1080846B1

公开(公告)日：2006-01-04

申请号：EP99903935.7

申请日：1999-02-23

申请人： Totsu, Katsuyuki

发明人： Totsu, Katsuyuki

IPC分类号： B25B15/00 ,  F16B23/00

CPC分类号： F16B23/0092 ,  B25B15/005 ,  F16B23/0023

摘要： A screwdriver bit (50) fitted to a screw wherein generally vertical end wall parts of a specified depth are formed in the bit fitting grooves of a screw head part at the end edge parts, a generally flat bottom part is formed directing from the lower edge part of the vertical end wall parts to the center part of a screw neck part, and a conical bottom surface is formed at its center part, comprising flat blade parts (52) forming, at the top end parts, generally vertical end edge parts fitted into the bit fitting grooves of the screw head part along the vertical end wall parts, the top end surfaces of the flat blade parts being formed in a conical protruded part (54) having an inclination angle theta of approx. 1 to 45 DEG relative to the horizontal plane, whereas the screw having stage parts at the end edge parts of the bit fitting grooves of the screw head part, forming inclined groove parts extendedly directing from these stage parts to the center part of the screw neck part, forming a generally conical bottom surface at its bottom part, and forming wall parts recessed inward from a vertical plane at the end edge parts of the bit fitting grooves through a specified depth.

公开(公告)号：EP1039151A4

公开(公告)日：2002-05-08

申请号：EP98959145

申请日：1998-12-09

申请人： TOTSU KATSUYUKI

发明人： TOTSU KATSUYUKI

IPC分类号： B25B13/54 ,  B25B15/00 ,  B25B23/10 ,  F16B23/00

CPC分类号： B25B23/108 ,  B25B15/005 ,  B25B15/008 ,  F16B23/0007 ,  F16B23/003 ,  F16B23/0038

摘要： A screw with a polygonal hole (30) formed with a polygonal hole (32) disposed in the center of a screw head (30a) and comprising a vertical wall (33) with a preset depth, and with a cone base oriented from the lower edge of the vertical wall toward the center of a screw neck, wherein a vertical step forming an inscribed circle of the polygon is provided at the lower edge (33a) of the vertical wall (33) of the polygonal hole (32) formed in the screw head (30a), the cone base (35) oriented from the lower edge (34a) of the vertical step (34) toward the center of the screw neck is formed, and a driver bit (40) or wrench (41) to be fitted to this screw is provided at the tip of a peak edge (42) with a cylindrical projection (44) forming the inscribed circle of the polygon.

公开(公告)号：EP1039151A1

公开(公告)日：2000-09-27

申请号：EP98959145.8

申请日：1998-12-09

申请人： Totsu, Katsuyuki

发明人： Totsu, Katsuyuki

IPC分类号： F16B23/00

CPC分类号： B25B23/108 ,  B25B15/005 ,  B25B15/008 ,  F16B23/0007 ,  F16B23/003 ,  F16B23/0038

摘要： A screw with a polygonal hole (30) formed with a polygonal hole (32) disposed in the center of a screw head (30a) and comprising a vertical wall (33) with a preset depth, and with a cone base oriented from the lower edge of the vertical wall toward the center of a screw neck, wherein a vertical step forming an inscribed circle of the polygon is provided at the lower edge (33a) of the vertical wall (33) of the polygonal hole (32) formed in the screw head (30a), the cone base (35) oriented from the lower edge (34a) of the vertical step (34) toward the center of the screw neck is formed, and a driver bit (40) or wrench (41) to be fitted to this screw is provided at the tip of a peak edge (42) with a cylindrical projection (44) forming the inscribed circle of the polygon.

摘要翻译： 一种具有多边形孔（30）的螺钉，其形成有设置在螺钉头（30a）的中心的多边形孔（32），并且包括具有预定深度的垂直壁（33），并且具有从下部 垂直壁的边缘朝向螺钉颈部的中心，其中形成多边形的内接圆的垂直台阶设置在形成在多边形的多边形孔（32）的垂直壁（33）的下边缘（33a） 螺杆头（30a），形成从垂直台阶（34）的下边缘（34a）朝向螺钉颈部的中心定向的锥形基座（35），以及驱动头（40）或扳手（41） 设置在具有形成多边形的内接圆的圆柱形突起（44）的峰值边缘（42）的尖端处的该螺钉上。

公开(公告)号：EP2529889A1

公开(公告)日：2012-12-05

申请号：EP10844723.6

申请日：2010-12-20

申请人： Totsu, Katsuyuki

发明人： Totsu, Katsuyuki

IPC分类号： B25B15/00

CPC分类号： B25B15/005

摘要： A screwdriver bit configured in such a way that when the tip of the screwdriver bit is to be fitted into a bit fitting groove of a screw, said bit fitting groove being formed on the top surface of the head of the screw, then damage is prevented from occurring on the top surface of the head of the screw, and proper fitting of the tip of said bit into the bit fitting groove is promptly and smoothly accomplished, with the result that the efficiency and safety of screw tightening work are significantly enhanced. This driver bit (30) is provided with a cross-shaped tip edge which is to be fitted into the bit fitting groove provided on the top surface of the head of the screw, said bit fitting groove consisting of a cross-shaped groove. In this driver bit (30), the tip surface of said tip edge (31) is formed as a whole into a spherical surface shape (34) by means of planishing.

摘要翻译： 以如下方式构造螺丝刀刀头，即，当螺丝刀头的尖端将被装配到螺钉的刀头安装槽中时，所述刀头安装槽形成在螺钉头部的顶表面上，从而防止损坏 不会发生在螺钉头部的顶面上，并且将所述钻头的尖端适当地装配到钻头装配槽中能够迅速且平稳地完成，结果是螺钉紧固工作的效率和安全性显着增强。 该螺丝刀头（30）具有十字形的顶端边缘，该顶端边缘将被装配到设置在螺钉头部的顶表面上的刀头安装槽中，所述刀头安装槽由十字形槽组成。 在该螺丝刀头（30）中，所述前端缘（31）的前端面通过整平而整体形成为球面形状（34）。

公开(公告)号：EP1775074B1

公开(公告)日：2012-01-18

申请号：EP05765375.0

申请日：2005-06-29

申请人： Totsu, Katsuyuki

发明人： Totsu, Katsuyuki

IPC分类号： B25B23/14 ,  B25B21/00 ,  H02P6/22 ,  H02P6/24

CPC分类号： H02P6/22 ,  B25B21/00 ,  B25B23/14 ,  B25B23/147 ,  H02P6/24

摘要： A rotary tool driven by a brushless motor, which can always appropriately and efficiently perform constant torque tightening work of screws, in which downsizing of the entire device and improvement of torque control accuracy are easily achieved, and conventional problems such as sparks occurring at switch contacts, wear, and negative effects to peripheral electronic apparatuses, electronic circuits, etc. are removed to reduce the sizes of and extend life of constituting components. A lever operation mechanism (20) as a drive switch or first Hall elements (31a, 31b) for detecting each operation of a push scan mechanism (18) and a second Hall element (32) for detecting clutch actuation are installed. Control means (50) is constructed such that a DC brushless motor (12) is rotatingly driven based on an operation signal by the first Hall elements (31a, 31b) and the drive is stopped based on an actuation signal of the second Hall element (32).

公开(公告)号：EP1369206B1

公开(公告)日：2011-04-13

申请号：EP02703855.3

申请日：2002-02-20

申请人： Totsu, Katsuyuki

发明人： Totsu, Katsuyuki

IPC分类号： B25B23/14 ,  B25B21/00

CPC分类号： B25B23/14 ,  B25B21/00 ,  B25B23/147

摘要： An electric rotational tool driving switch system, which, in using an electric rotational tool, is capable of selectively effecting drive control based on a desired push operation type or lever operation type according to individual work contents and which is easy to handle, with sufficiently enhanced safety, wherein a rotational tool (14) is constructed such that a drive switch (30) of push operation type adapted to effect ON-operation by abutting against a work subject, such as a screw, to cause push displacement thereof, and a drive switch (32) of lever operation type adapted to effect ON-operation by push-displacing a switch lever (26) disposed in the grip of an electric rotational tool are respectively combined with magnets (31a, 33a) and magnetic sensors (31b, 33b), the magnetic sensors being connected to the energization circuit of an electric motor (12), one of the above-mentioned operation types being selected so that the magnetic sensing action of the magnetic sensor based on the selected operation type is used to turn on the energization circuit so as to start the electric motor.

公开(公告)号：EP1961978A4

公开(公告)日：2010-04-21

申请号：EP06821977

申请日：2006-10-20

申请人： TOTSU KATSUYUKI

发明人： TOTSU KATSUYUKI

IPC分类号： F16B39/284 ,  F16B39/30

CPC分类号： F16B39/284 ,  F16B39/225

公开(公告)号：EP1775074A4

公开(公告)日：2010-02-03

申请号：EP05765375

申请日：2005-06-29

申请人： TOTSU KATSUYUKI

发明人： TOTSU KATSUYUKI

IPC分类号： B25B23/14 ,  B25B21/00 ,  H02P6/22 ,  H02P6/24

CPC分类号： H02P6/22 ,  B25B21/00 ,  B25B23/14 ,  B25B23/147 ,  H02P6/24