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137 条记录 (耗时 0.016 秒)

    Thread rolling screw
    31.
    发明授权
    Thread rolling screw 失效
    螺纹滚丝螺丝

    公开(公告)号：US5088869A

    公开(公告)日：1992-02-18

    申请号：US645240

    申请日：1991-01-24

    申请人： Joe E. Greenslade

    发明人： Joe E. Greenslade

    IPC分类号： B21H3/02 ,  F16B25/00

    CPC分类号： B21H3/027 ,  F16B25/0047 ,  F16B25/0052 ,  F16B25/0078

    摘要： A thread rolling screw has a continuous helical set of threads formed on a body. The threads have a tip section, an intermediate section, and a final section. In the tip and intermediate sections, the diameters of the crests progressively increase. In the intermediate section, relieved areas are spaced apart around the crests of the threads. In the final section, the threads are continuous and circular and of constant diameter. The crest of the last intermediate thread is the same diameter as the crests of the final thread section.

    摘要翻译： 螺纹滚动螺杆具有形成在主体上的连续的螺旋形螺纹组。 螺纹具有尖端部分，中间部分和最后部分。 在尖端和中间部分，波峰的直径逐渐增加。 在中间部分中，释放区域围绕螺纹的顶部间隔开。 在最后一节中，螺纹是连续的，圆形的，直径不变的。 最后一个中间螺纹的顶部与最终螺纹部分的顶部的直径相同。

    Self-tapping screw for use in plastics
    32.
    发明授权
    Self-tapping screw for use in plastics 失效
    用于塑料的自攻螺丝

    公开(公告)号：US4334814A

    公开(公告)日：1982-06-15

    申请号：US170552

    申请日：1980-07-21

    申请人： Arthur J. McKewan

    发明人： Arthur J. McKewan

    IPC分类号： B21H3/02 ,  F16B25/00 ,  F16B39/30

    CPC分类号： F16B25/0015 ,  B21H3/027 ,  F16B25/0047 ,  F16B39/30

    摘要： A threaded fastener particularly suited for use with plastics having spaced apart threads and a negative rake or "hook" formed at the crest of certain of the threads so that axial force applied by the fastener in the direction of the head is translated in part towards the axis of the fastener, thus increasing the failure load of the screw assembly and eliminating premature stripping of the screw threads. Also disclosed is the preferred manner of making the threaded fastener of the present invention.

    摘要翻译： 特别适用于具有间隔开的螺纹的塑料螺纹紧固件，以及形成在某些螺纹的顶部处的负斜齿或“钩”，使得紧固件沿头部方向施加的轴向力部分朝向 从而增加了螺钉组件的故障载荷并消除了螺纹的过早剥离。 还公开了制造本发明的螺纹紧固件的优选方式。

    Blanks for making self-thread forming threaded fasteners
    33.
    发明授权
    Blanks for making self-thread forming threaded fasteners 失效
    用于制作自动螺纹成型螺纹紧固件的坯料

    公开(公告)号：US4042342A

    公开(公告)日：1977-08-16

    申请号：US696477

    申请日：1976-06-15

    申请人： Herman G. Muenchinger

    发明人： Herman G. Muenchinger

    IPC分类号： B21H3/02 ,  F16B25/00 ,  B21H3/00 ,  F16B35/00

    CPC分类号： B21H3/027 ,  F16B25/0078 ,  Y10T428/12285

    摘要： A blank is formed for providing a self-thread forming threaded fastener having a straight thread on a shank of circular cross section and tapered thread of the work-entering end. The tapered portion of the thread is of lobular root, pitch and crest surface cross sections and which lobular configuration is continued, but to a diminishing extent, on the first few threads on the shank immediately adjacent to the tapered section. The fastener is formed by rolling between thread-rolling dies a blank having a cylindrical shank of circular cross section and an end section of arcuate lobular cross section including a tapered portion. At least the lobular and tapered portions of the blank are intermittently deflected first in one direction and then in the opposite direction by the dies. Due to such deflections of the end of the blank, a lobular tapered thread is produced on the tapered portion of the blank.

    摘要翻译： 形成坯料以提供自动螺纹成形的螺纹紧固件，该螺纹紧固件在工作进入端的圆形横截面的柄部和锥形螺纹上具有直线螺纹。 螺纹的锥形部分具有小叶根部，节距和顶部表面横截面，并且小叶结构继续，但是在与锥形部分紧邻的柄上的第一几根螺纹上减小。 紧固件通过在滚丝模具之间滚动而形成，该坯料具有圆形横截面的圆柱形柄和包括锥形部分的弓形小叶截面的端部。 至少坯料的小叶和锥形部分首先在一个方向上首先被偏转，然后在相反的方向上被模具偏转。 由于坯料端部的这种偏转，在坯料的锥形部分上产生小叶锥形螺纹。

    Self-tapping threaded bushings
    34.
    发明授权
    Self-tapping threaded bushings 失效
    自攻螺纹

    公开(公告)号：US3866510A

    公开(公告)日：1975-02-18

    申请号：US32995273

    申请日：1973-02-05

    申请人： EIBES CARL B H ,  EIBES CHRISTIAN ,  EIBES CARL H ,  WAGNER MARIA THERESI

    发明人： EIBES CARL B H ,  EIBES CHRISTIAN ,  EIBES CARL-HERWIG ,  WAGNER MARIA-THERESI

    IPC分类号： B21H3/02 ,  B23G7/00 ,  F16B25/00 ,  F16B37/12

    CPC分类号： F16B37/122 ,  B21H3/027 ,  B23G7/00 ,  F16B25/0031 ,  F16B25/0052

    摘要： The disclosure relates to a threaded bushing which, upon entering and turning in the initially smooth bore of the work piece, will form through its own male thread the corresponding internal thread within the wall of the work piece bore. The bushing is formed with one or more exterior bevels or grooves which extend axially over at least several threads and intersect such threads to form spoon or cup-shaped frontal areas where each bevel or groove merges into a respective thread.

    摘要翻译： 本公开涉及一种螺纹衬套，其在进入和转动工件的初始平滑孔时，将通过其自身的外螺纹形成在工件孔的壁内的相应的内螺纹。 衬套形成有一个或多个外部斜面或凹槽，其在至少几个螺纹上轴向延伸并且与这些螺纹相交，以形成勺子或杯形正面区域，其中每个斜面或凹槽合并到相应的螺纹中。

    Thread rolling dies and method of manufacturing same
    35.
    发明授权
    Thread rolling dies and method of manufacturing same 失效
    螺纹轧辊及其制造方法

    公开(公告)号：US3818749A

    公开(公告)日：1974-06-25

    申请号：US29421972

    申请日：1972-10-02

    申请人： NL INDUSTRIES INC

    发明人： YANKEE H ,  CORRETTE R

    IPC分类号： B21H3/02 ,  B21H3/06

    CPC分类号： B21H3/027 ,  Y10S411/938

    摘要： A thread rolling die and a method of manufacturing such die is disclosed for forming self-locking threads having helically arranged arrays of thread form projections. The dies include thread forming convolutions spaced along the length of the die by a distance equal to pi times the diameter of the blank to be threaded. Projection forming troughs are formed in the die at spaced locations along the length of the die a distance biased upon pi times the sum of the blank diameter and two times the height of the projections. In the illustrated embodiment wherein three arrays of projections are provided around the thread to be formed, the spacing of the troughs is pi divided by three times the sum of the blank diameter plus two times the height of the projections. The troughs are formed by a shaped pressing tool which is pressed into the face of the die prior to hardening wherein the spacing is arranged as set forth.

    摘要翻译： 公开了一种螺纹滚压模和这种模的制造方法，用于形成具有螺旋排列的螺纹形凸起阵列的自锁螺纹。 模具包括沿着模具的长度间隔开的螺纹形成卷取距离等于要乘坐的螺纹坯料的直径的pi倍。 投影形成槽在模具中沿着模具的长度在间隔的位置处形成，距离偏置在pi乘以坯料直径的总和和凸起高度的两倍之间。 在所示实施例中，其中三个突起阵列设置在待形成的线的周围，槽的间隔为pi除以毛坯直径加上凸起高度两倍的总和的三倍。 凹槽由成形的压制工具形成，该加工工具在硬化之前被压入模具的表面，其中间隔如上所述排列。

    Method of making a self-thread forming fastener with easy thread pickup
    36.
    发明授权
    Method of making a self-thread forming fastener with easy thread pickup 失效
    用易螺丝刀制造自攻螺丝紧固件的方法

    公开(公告)号：US3683437A

    公开(公告)日：1972-08-15

    申请号：US3683437D

    申请日：1971-08-26

    申请人： EUGENE R LARSON

    发明人： LARSON EUGENE R

    IPC分类号： B21H3/02 ,  B21H3/06 ,  B21K1/44 ,  B21K1/56 ,  B23G7/00

    CPC分类号： B21H3/027

    摘要： The work-entering end of a self-thread forming fastener is provided with a step-tapered portion for initially engaging the sidewall of the pilot hole of a workpiece. The invention is characterized by the fact that the tapered portion is of substantially circular cross section while the radial height of the thread over such step-tapered portion increases from a beginning height less than the diameter of the pilot hole to the full height of the thread on the shank portion in stages. In the first such stage, the crest of the thread increases rapidly in radial height within a small circumferential angle to establish substantial initial thread-forming engagement with the pilot hole. In the second stage, the crest of the thread continues for at least one full thread turn at substantially the same radial height as it achieves in the first stage to insure thread pickup with minimum end loading. In the third stage, the crest of the thread increases in radial height substantially to the maximum radial height of the crest of the thread on the shank portion.

    摘要翻译： 自攻螺纹成形紧固件的工件进入端设置有用于最初接合工件的引导孔的侧壁的阶梯形部分。 本发明的特征在于，锥形部分具有基本上圆形的横截面，而在这种阶梯形部分上的线的径向高度从小于引导孔的直径的开始高度增加到螺纹的整个高度 在柄部分阶段。 在第一个这样的阶段，螺纹的顶部在小的圆周角度内的径向高度上迅速增加，以与导向孔建立大量初始的螺纹成形接合。 在第二阶段中，螺纹的顶部在与第一阶段达到的基本相同的径向高度处持续至少一个完整的螺纹转弯，以确保最小的最终负载的螺纹拾取。 在第三阶段，螺纹的顶部基本上升高到柄部上的螺纹的顶部的最大径向高度。