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公开(公告)号：US20160003282A1
公开(公告)日：2016-01-07
申请号：US14770410
申请日：2014-02-12
CPC分类号： F16B25/0026 , B21H3/022 , B21H3/027 , F16B25/0084
摘要： A method for producing a concrete screw is disclosed. The method includes providing a wire piece as a workpiece, forming a thread helix on a lateral surface of the workpiece, and providing a depression in the lateral surface of the workpiece by a forming process.
摘要翻译： 公开了一种混凝土螺杆的制造方法。 该方法包括提供作为工件的线片，在工件的侧表面上形成螺纹螺纹，并通过成形工艺在工件的侧表面上提供凹陷。
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公开(公告)号：US20120034048A1
公开(公告)日：2012-02-09
申请号：US13201811
申请日：2009-02-16
申请人： Balasingam Karupaya
发明人： Balasingam Karupaya
CPC分类号： B21H3/027 , F16B23/0053 , F16B25/0015 , F16B25/0047
摘要： A thread forming screw thread fastener for fastening into a hole formed by the fastener in a work piece, the fastener comprising: a head having a drive to be engaged with a driver bit; and a shank with threads having a symmetrical thread profile with a minor diameter and a major diameter, the major diameter defining a thread crest of the screw thread, and the minor diameter defining the thread root of the screw thread, the profile of the screw thread defined by the surface of the screw thread between adjacent thread crests forming a thread flank, the thread flank having a first central portion of constant radius along the thread root, the radius common at the thread root, at each adjacent thread crests, and at two transition intersection points, the profile of the thread flank having second and third portions defined by surfaces having different radii of curvature between each transition intersection point and each adjacent thread crest.
摘要翻译： 一种螺纹形成螺纹紧固件，用于紧固在由紧固件形成在工件中的孔中，所述紧固件包括：头部，其具有与驱动器钻头接合的驱动器; 以及具有具有小直径和大直径的对称螺纹轮廓的螺纹的柄，所述主直径限定所述螺纹的螺纹牙顶，所述小直径限定所述螺纹的螺纹根部，所述螺纹的轮廓 由形成螺纹牙齿的相邻螺纹牙顶之间的螺纹表面限定，螺纹牙齿沿着螺纹根具有恒定半径的第一中心部分，在螺纹根部处共同的半径，在每个相邻的螺纹牙顶处，并且在两个 过渡交叉点，具有由每个过渡交叉点和每个相邻螺纹牙顶之间具有不同曲率半径的表面限定的第二和第三部分的螺纹的轮廓。
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公开(公告)号：US20010007629A1
公开(公告)日：2001-07-12
申请号：US09753027
申请日：2001-01-02
发明人： Sala Carlo
IPC分类号： F16B025/10
CPC分类号： B21H3/027 , F16B25/0021 , F16B25/0052
摘要： nullA self-threading screw is described which includes a (basically) conical point set at the end of its shank opposite that where the head is housed, and a sunken zone set between the end of the screw shank and the conical point. In addition, an apparatus is described to produce a self-threading screw provided with a point and a sunken zone, in which at least the thread of the self-threading screw, the conical point and the sunken zone are simultaneously produced by rolling.null
摘要翻译： 描述了一种自攻螺丝，其包括在其柄部的端部处相对于头部被容纳的位置的基本上圆锥形的点，以及设置在螺钉柄的端部与锥形点之间的凹陷区域，此外 描述了一种设备，以生产具有点和凹陷区域的自攻螺钉，其中至少通过滚动同时产生自攻螺钉，锥形点和凹陷区域的螺纹。
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公开(公告)号：US5531553A
公开(公告)日：1996-07-02
申请号：US184550
申请日：1994-01-19
申请人： Charles Bickford
发明人： Charles Bickford
CPC分类号： B21H3/027 , F16B25/00 , F16B25/0026 , F16B25/0047 , F16B25/0057 , F16B25/0068 , F16B2001/0021
摘要： A masonry fixing device 1 comprises a steel shank 2 which in the form of the blank is right circular cylindrical form. A ridge-groove-ridge configuration extends helically along the lower portion 4 of shank 2 and comprises a pair of parallel opposed ridges 7 upstanding from an adjacent land 9. Each ridge defines with the adjacent ridge a groove 5. At least the forward end of the lower portion 4 of shank 2 is configured so as to provide a self-tapping facility. In use, the fixing device is introduced into a pre-drilled bore in a masonry substrate such as brickwork by turning so as to form a thread on the interior walls of the bore. The axial dimension of the land 9 is at least 50% of the blank diameter with the result that relatively large amounts of substrate material are disposed between the ridge-groove-ridge configuration when the fixing device is in place. The resulting pull out strengths of the fixing device in masonry structures is superior to the majority of fixing devices available for masonry use and the device is less costly in materials terms and easier to use than typical expansion bolts.
摘要翻译： 砖石固定装置1包括钢坯2，其为坯料的形式为圆形圆形。 脊槽脊构造沿着柄2的下部4螺旋地延伸，并且包括从相邻的凸起9竖立的一对平行的相对的脊7.每个脊与相邻的脊形成一个凹槽5.至少前端 柄2的下部4构造成提供自动攻丝设备。 在使用中，定影装置通过转动被引入诸如砖砌体的砖石基底中的预钻孔中，以在孔的内壁上形成螺纹。 焊盘9的轴向尺寸为坯料直径的至少50％，结果是当固定装置就位时，相对较大量的衬底材料设置在脊沟槽脊构造之间。 在砖石结构中，固定装置的拉伸强度优于大多数可用于砖石使用的固定装置，并且该装置在材料方面成本较低，并且比典型的膨胀螺栓更容易使用。
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公开(公告)号：US5374146A
公开(公告)日：1994-12-20
申请号：US103906
申请日：1993-08-10
申请人： John Allen
发明人： John Allen
CPC分类号： B21H3/027 , B21K1/44 , B21K1/56 , F16B35/047
摘要： A fastener has a head and a shank with two ends. One of the ends includes the head while the other includes a pilot point. Also, the shank includes a threaded portion adjacent to the pilot point. A pair of recesses are formed 180.degree. from one another on the point and threaded portion. The recesses extend from the end of the point through at least a first full thread.
摘要翻译： 紧固件具有头部和具有两个端部的柄部。 其中一个包括头部，另一个包括导向点。 此外，柄部包括与导向点相邻的螺纹部分。 一对凹部在点和螺纹部分上彼此形成180°。 凹槽从点的末端延伸穿过至少第一个全螺纹。
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公开(公告)号：US5304024A
公开(公告)日：1994-04-19
申请号：US933050
申请日：1992-08-19
申请人： Armin Schuster
发明人： Armin Schuster
CPC分类号： F16B25/0047 , B21H3/027 , F16B25/0015 , F16B25/0068 , F16B25/0084
摘要： A screw has a thread (3), whose front and rear flanks have a different angle with respect to the screw longitudinal axis. The screw tip (2) can contain a scraping groove (6), which extends as a notch in the screw longitudinal direction. In the front, conically tapering area of the screw the thread course is constructed symmetrically and extends up to the tip.
摘要翻译： 螺钉具有螺纹（3），其前后侧部相对于螺杆纵向轴线具有不同的角度。 螺杆尖端（2）可以包含沿螺钉纵向方向作为切口延伸的刮槽（6）。 在前面，螺纹的锥形锥形区域对称地构造并延伸到尖端。
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公开(公告)号：US4816346A
公开(公告)日：1989-03-28
申请号：US110189
申请日：1987-10-19
申请人： Tommy R. Hulsey
发明人： Tommy R. Hulsey
CPC分类号： B21H3/027 , B21K1/56 , F16B35/00 , F16B25/00 , F16B25/103 , Y10T428/12229 , Y10T428/12264 , Y10T428/12271
摘要： A bi-metallic screw fastener blank for a self drilling screw of a given root diameter is disclosed. The screw blank comprises a metallic head and shank member made of a first material that is welded to a metallic slug member that is of equal diameter to the head and shank member but is made of a second material which is heat hardenable. The blank is characterized by an annular groove at the weld interface between the head and shank member and the slug member that has a diameter equal to the given root diameter of the screw.
摘要翻译： 公开了一种用于给定根直径的自钻螺丝的双金属螺丝紧固件坯料。 螺纹坯料包括由第一材料制成的金属头部和柄部件，该第一材料焊接到与头部和柄部件等直径相同但由可热固化的第二材料制成的金属块部件。 毛坯的特征在于在头部和柄部件之间的焊接界面处的环形槽和具有与螺杆的给定根直径相等的直径的止动部件。
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公开(公告)号：US4655073A
公开(公告)日：1987-04-07
申请号：US778966
申请日：1985-09-23
申请人： Hisayoshi Yamamoto
发明人： Hisayoshi Yamamoto
CPC分类号： B21H3/027 , F16B25/0021 , F16B25/0068 , F16B25/0084 , F16B25/10 , F16B25/103
摘要： A self-tapping screw which is rolled in such a way that a plurality of cutting screw threads performing a cutting function are provided on the top end side of a shank of a screw, whereas the screw thread performing the fastening function is provided on the base end of the shank thereof. A line formed by tracing the boundary between the resistance flank of the cutting screw thread and the shank makes a gradual and more abrupt advance toward the top end direction of the screw in comparison with the line formed by combining the tops of cutting screw threads and relieving is applied to the resistance flank of the cutting thread. The turning torque necessary for cutting the screw is thus smaller. The disclosure is secondly directed to a thread rolling die for making the above self-tapping screw. An angle formed between a line perpendicular to the bottom of a groove shaping the cutting screw thread and a face shaping the resistance flank is provided on the die such that the angle fluctuates along the progressive extension ranging from the begining end of the groove shaping the cutting screw thread to the final end thereof.
摘要翻译： 在螺杆的柄部的顶端侧设置有自攻螺钉，该自攻螺钉以螺纹的柄部的上端侧设置有多个切削功能的切削螺纹，而进行紧固功能的螺纹设置在基座 其柄部的末端。 与通过组合切割螺纹的顶部形成的线相比，通过跟踪切割螺纹的阻力侧面和柄之间的边界形成的线与螺钉的顶端方向相比逐渐且更突然地前进， 被施加到切割螺纹的阻力侧面。 因此，切割螺钉所需的转动转矩变小。 本公开第二方面涉及用于制造上述自攻螺钉的螺纹滚压模具。 在模具上设置有垂直于成形切割螺纹的槽的底部的线和形成电阻侧面的表面之间形成的角度，使得角度沿着从形成切割的槽的开始端延伸的逐渐延伸 螺纹到其最终端。
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公开(公告)号：US4546639A
公开(公告)日：1985-10-15
申请号：US535796
申请日：1983-09-26
申请人： Richard H. Corrette
发明人： Richard H. Corrette
CPC分类号： B21H3/027
摘要： A method and apparatus for forming self tapping threaded fasteners having a cylindrical gripping portion and a tapered end portion with swaging lobes thereon is disclosed. The apparatus includes a pair of flat dies having a flat G-surface formed with thread rolling grooves therein to form the gripping cylindrical portion of the fastener. A rise angle surface having thread forming grooves therein with lobe forming recesses adjacent to the finished end operate to form the tapered point with lobes thereon. The G-surface is wider at the forward end of the die and progressively narrows until a dwell or finished portion is reached adjacent to the finish end of the die. Consequently, the threads along the tapered portion of the blank are not as fully formed as the threads along the cylindrical portion when the blank reaches the finishing end and excess material is available to fill the recesses and produce the lobes.
摘要翻译： 公开了一种用于形成自攻螺纹紧固件的方法和装置，其具有圆柱形夹持部分和在其上具有锻造凸角的锥形端部分。 该装置包括一对具有平坦的G形表面的平面模具，其中形成有螺纹滚动槽，以形成紧固件的夹紧圆柱形部分。 其中具有螺纹形成槽的上升角表面具有与最终端相邻的凸角形成凹槽，以在其上形成具有凸角的锥形点。 G表面在模具的前端较宽，并且逐渐变细，直到在模具的最终端附近到达停留或成品部分。 因此，当坯件到达最终端时，沿坯料的锥形部分的螺纹不如沿着圆柱形部分的螺纹完全形成，并且多余的材料可用于填充凹部并产生凸角。
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公开(公告)号：US4295351A
公开(公告)日：1981-10-20
申请号：US1975
申请日：1979-01-08
摘要： A process for producing self-tapping screws from an austenitic 300 series stainless steel material wherein a blank of such material is chilled prior to a thread rolling operation so that the threads are formed while the blank is in a chilled condition. A preferred apparatus for practicing such a method utilizes an insulated tunnel surrounding the feed track which leads to the thread roller. Fluid refrigerant is fed to the interior of the tunnel to chill the blanks immediately prior to the thread rolling operation.
摘要翻译： 一种用于从奥氏体300系列不锈钢材料制造自攻螺钉的方法，其中在螺纹滚动操作之前将这种材料的坯料冷却，使得在坯料处于冷却状态时形成螺纹。 用于实施这种方法的优选装置利用围绕馈送轨道的绝缘隧道，其通向线辊。 流体制冷剂被送入隧道的内部，以便在螺纹滚动操作之前立即冷却坯料。
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