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1. 发明申请

WO9906715A3 SELF TAPPING SCREW 审中-公开
标题翻译：螺丝自攻螺纹
公开(公告)号：WO9906715A3
公开(公告)日：1999-09-30
申请号：PCT/EP9804719
申请日：1998-07-28
申请人： EJOT VERBINDUNGSTECH GMBH & CO , GROSSBERNDT HERMANN , KOENIG GOTTFRIED
发明人： GROSSBERNDT HERMANN , KOENIG GOTTFRIED
IPC分类号： F16B25/00 , F16B33/02
CPC分类号： F16B25/0015 , F16B25/0047
摘要： The invention pertains to a screw produced by cold rolling, designed to be screwed into plastic material, and having a self tapping thread, the fillets (3) of which are formed, in a sectional view, like a knife blade. The fillet flank surface (6, 8) features an inward curve (5) in its central third and forms an outer thread flank angle ( alpha ) of approximately 30 (between the curve (5) and the crest of thread (27)) as well as an inner thread flank angle ( beta ) (between the curve (5) and the thread root (7)), while the inner thread flank angle ( beta ) in the central portion is substantially equal to or larger than a third of the outer thread flank angle ( alpha ). The invention also relates to a screw, the shank end (34) of which operates as a guide for screwing said screw into a bore (41), while the thread end (32) presents, on the one hand, an end area (36) having a cutting edge (58) for cutting its channel of screw and being oriented askew relative to the radial direction of the screw and, on the other hand, a base line (56) which extends the thread foot edge (60) between a thread flank (49) and the shank jacket (33) and runs in the spiral direction of the screw (32) according to an angle ( beta ) substantially deviating from 90 , while the cutting edge (48) extends into the crest (40) of thread.
摘要翻译：本发明涉及一种由冷轧螺杆模塑用于拧入塑料材料与自攻螺纹，其螺纹设计（3）关于叶片状的横截面，一个侧表面（6,8）的螺纹（3）的大致弯曲的中间三分之一（5）至约30℃的向内和外侧面角（阿尔法）（27）和内侧面角（测试版）（弯曲（5）和所述螺纹末端之间）（（拐点5之间）和螺纹根（7））形式，与内侧面角（测试版）上平均大致等于或大于外侧面角（阿尔法）的1/3以上。本发明还涉及其中自由臂端（34）形成用于螺钉的拧入的导向成一个孔（41）的螺杆，所述通过其螺纹截断螺纹端（32）和倾斜引导到螺丝端面的径向方向（ 36）与在一个切削刃（58）和具有一底边（56），其（之间的一个侧面（49的电流）和轴33的壳）螺纹足缘（60）继续，基线（56）形成 90 DEG基本上不同的角度（测试版）的螺纹（32）和螺纹牙顶的切削刃（48）的俯仰方向（40）通过。

2. 发明申请

WO1990011458A1 SELF-TAPPING DRILL SCREW 审中-公开
标题翻译：自攻式钻头螺丝
公开(公告)号：WO1990011458A1
公开(公告)日：1990-10-04
申请号：PCT/EP1990000476
申请日：1990-03-23
申请人： EJOT EBERHARD JAEGER GMBH & CO. KG , GROSSBERNDT, Hermann , KRETSCHMER, Günter , KLEES, Horst , GÜVEN, Ali
发明人： EJOT EBERHARD JAEGER GMBH & CO. KG
IPC分类号： F16B25/10
CPC分类号： B21J5/066 , F16B25/0021 , F16B25/0057 , F16B25/0078 , F16B25/0084 , F16B25/106 , Y10T29/49833 , Y10T29/49837 , Y10T29/49908
摘要： A self-tapping drill screw with a maximum thread diameter of approximately 6 mm can be screwed into a metal sheet (12) with a maximum thickness of approximately 1 mm. It comprises a slotted head (2) and a threaded shank (3) attached to a cylindrical part (15) which has a diameter less than the flank diameter of the threaded shank and which merges into a tapering tapping part. The threaded shank merges into the cylindrical part over a taper which extends over approximately four pitches (4) and is approximately four times as long as the thickness of the metal sheet. The tapping part ends in a crowned friction surface (7) the radius (R) of which is approximately equal to 0.5 mm. The entire screw is made in one piece from quenched and subsequently drawn steel with a tensile strength of up to approximately 1400 N/mm2 or from carburized steel.

3. 发明申请

WO1989008790A1 CAP SCREW WITH SOCKET HEAD INTENDED FOR AN INTERNAL DRIVE 审中-公开
标题翻译：具有插头头的CAP螺丝用于内部驱动
公开(公告)号：WO1989008790A1
公开(公告)日：1989-09-21
申请号：PCT/DE1989000003
申请日：1989-01-05
申请人： EJOT EBERHARD JAEGER GMBH & CO KG , GROSSBERNDT, Hermann
发明人： EJOT EBERHARD JAEGER GMBH & CO KG
IPC分类号： F16B23/00
CPC分类号： B25B13/065 , B25B15/004 , F16B23/0007
摘要： A cap screw has an essentially cylindrical, cup-shaped socket head (5) intended for an internal drive with axial, diametrically opposite driving ribs (8, 9) projecting inward from the wall (7). A central, axial centering pin (13) provided with a diametral slot (14) in alignment with axial recesses (10, 11) in the driving ribs (8, 9) projects from the socket head (5) above the rim (23) of the cap screw.

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