公开(公告)号：US20090200798A1

公开(公告)日：2009-08-13

申请号：US12232362

申请日：2008-09-16

申请人： Takahiro Hamamoto ,  Katsutoshi Sumitani ,  Masaaki Sugino ,  Michihiko Iwamoto ,  Miyuki Yamamoto ,  Jean-Francois Charvet-Quemin ,  Benoit Le Chevalier ,  Eric Verger

发明人： Takahiro Hamamoto ,  Katsutoshi Sumitani ,  Masaaki Sugino ,  Michihiko Iwamoto ,  Miyuki Yamamoto ,  Jean-Francois Charvet-Quemin ,  Benoit Le Chevalier ,  Eric Verger

IPC分类号： F16L15/04

CPC分类号： E21B17/042 ,  F16L15/004 ,  F16L15/06

摘要： A tubular threaded joint which has excellent resistance to compression and which permits easy tightening operation in the field in a vertical state comprises a pin having a male threaded zone and a box having a female threaded zone. The pin or the box has an end shoulder surface on its end, and the other member has a shoulder surface which abuts against the end shoulder surface. The screw threads of the male threaded zone and the female threaded zone are trapezoidal threads having a crest, a load flank, and a stabbing flank. The lip length, which is the distance in the axial direction of a member having an end shoulder surface between the end shoulder surface and the closest engaged thread to that surface, is at least 140 times the stabbing flank clearance, which is the distance in the axial direction between the stabbing flanks of the male thread and the female thread when the load flanks of the male and female threads contact each other. The stabbing flank of the male thread is preferably chamfered.

摘要翻译： 具有优异的抗压缩性并且允许在垂直状态下在现场容易的紧固操作的管状螺纹接头包括具有阳螺纹区域和具有内螺纹区域的箱体的销。 销或箱的端部具有端部肩部表面，另一个部件具有抵靠端部肩部表面的肩部表面。 阳螺纹区域和阴螺纹区域的螺纹是梯形螺纹，具有顶部，负载侧面和刺入侧面。 唇部长度，即在端肩表面和与该表面最接近的接合螺纹之间具有端部肩部表面的构件的轴向方向上的距离，至少为刺穿侧面间隙的140倍，即， 阳螺纹和阴螺纹的负荷侧面彼此接触时，外螺纹的刺​​入侧面和内螺纹之间的轴向方向。 外螺纹的刺​​伤侧面优选地被倒角。

公开(公告)号：US07823931B2

公开(公告)日：2010-11-02

申请号：US12232362

申请日：2008-09-16

申请人： Takahiro Hamamoto ,  Katsutoshi Sumitani ,  Masaaki Sugino ,  Michihiko Iwamoto ,  Miyuki Yamamoto ,  Jean-Francois Charvet-Quemin ,  Benoit Le Chevalier ,  Eric Verger

发明人： Takahiro Hamamoto ,  Katsutoshi Sumitani ,  Masaaki Sugino ,  Michihiko Iwamoto ,  Miyuki Yamamoto ,  Jean-Francois Charvet-Quemin ,  Benoit Le Chevalier ,  Eric Verger

IPC分类号： F16L25/00

CPC分类号： E21B17/042 ,  F16L15/004 ,  F16L15/06

摘要： A tubular threaded joint which has excellent resistance to compression and which permits easy tightening operation in the field in a vertical state comprises a pin having a male threaded zone and a box having a female threaded zone. The pin or the box has an end shoulder surface on its end, and the other member has a shoulder surface which abuts against the end shoulder surface. The screw threads of the male threaded zone and the female threaded zone are trapezoidal threads having a crest, a load flank, and a stabbing flank. The lip length, which is the distance in the axial direction of a member having an end shoulder surface between the end shoulder surface and the closest engaged thread to that surface, is at least 140 times the stabbing flank clearance, which is the distance in the axial direction between the stabbing flanks of the male thread and the female thread when the load flanks of the male and female threads contact each other. The stabbing flank of the male thread is preferably chamfered.

摘要翻译： 具有优异的抗压缩性并且允许在垂直状态下在现场容易的紧固操作的管状螺纹接头包括具有阳螺纹区域和具有内螺纹区域的箱体的销。 销或箱的端部具有端部肩部表面，另一个部件具有抵靠端部肩部表面的肩部表面。 阳螺纹区域和阴螺纹区域的螺纹是梯形螺纹，具有顶部，负载侧面和刺入侧面。 唇部长度，即在端肩表面和与该表面最接近的接合螺纹之间具有端部肩部表面的构件的轴向方向上的距离，至少为刺穿侧面间隙的140倍，即， 当阳螺纹和阴螺纹的负载侧面彼此接触时，外螺纹的刺​​入侧面和内螺纹之间的轴向方向。 外螺纹的刺​​伤侧面优选地被倒角。