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1. 发明专利

JP2008170004A Two-piece free running prevailing torque nut 审中-公开
标题翻译：两个免费运行预防扭矩螺母
公开(公告)号：JP2008170004A
公开(公告)日：2008-07-24
申请号：JP2007320960
申请日：2007-12-12
申请人： Alcoa Global Fasteners Inc , アルコアグローバルファスナーズインコーポレイテッド
发明人： HOCKING DAVID , FIELDS WILLIAM O JR , MONTSERRAT ERNEST , SILVER DAVID
IPC分类号： F16B37/00 , F16B31/02 , F16B39/28 , F16B39/284
CPC分类号： F16B29/00 , F16B39/28 , F16B39/36
摘要： PROBLEM TO BE SOLVED: To provide a two-piece nut satisfying required torque specification even if fluctuation in tolerance exists between the nut and a bolt in the two-piece nut.
SOLUTION: In a threaded fastener with the two-piece nut member and the bolt with the nut member having a threaded nut member and a base member, the threaded nut member has a body portion and a neck portion, the neck portion engaging with a transition beginning engagement on the base member. The base member includes a transition portion, the diameter of the transition portion increasing radially as it extends axially from a cylindrical through bore portion to an increased diameter at an outer planer surface of the base member. Movement of the neck portion into the based member results in the threaded form having a compressive engagement with engaged threads of the bolt to provide the prevailing torque structure. The threaded nut member and the base member may be made of dissimilar materials, and is more flexible in use with various bearing surfaces.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使螺母和两件式螺母中的螺栓之间存在公差的波动，也提供满足所需扭矩规格的两件式螺母。解决方案：在具有两件式螺母构件的螺纹紧固件和具有螺母构件的螺栓具有螺纹螺母构件和基座构件的螺纹紧固件中，螺纹螺母构件具有主体部分和颈部部分，颈部接合在基础成员上开始接触过渡。基部构件包括过渡部分，当其从圆柱形通孔部分轴向延伸到基部构件的外平面处的增加的直径时，过渡部分的直径径向增加。颈部移动到基部件中导致螺纹形状与螺栓的接合螺纹压缩接合以提供主要的扭矩结构。螺纹螺母构件和基座构件可以由不同的材料制成，并且在与各种支承表面一起使用时更灵活。版权所有（C）2008，JPO＆INPIT

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