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1. 发明授权

US4442571A Self-ejecting fastener stud 失效
标题翻译：自动弹出紧固螺柱
公开(公告)号：US4442571A
公开(公告)日：1984-04-17
申请号：US405256
申请日：1982-08-04
申请人： George R. Davis , Robert Hildebrand , Harold Purcell
发明人： George R. Davis , Robert Hildebrand , Harold Purcell
IPC分类号： F16B5/10 , F16B21/04 , A44B17/00
CPC分类号： F16B5/10 , F16B21/04 , Y10S24/59 , Y10T24/45173
摘要： A self-ejecting fastener stud is provided for use with a fastener receptacle to form a fastener assembly for fastening two members together. The stud has an enlarged head portion and a shank portion extending therefrom adapted to extend through an opening in one of the members to be fastened and to engage with a receptacle mounted on the other of the two members to be fastened. The stud has a cam follower and the receptacle has a cam surface positioned so that engagement and relative rotation therebetween will shift the stud and receptacle between fastened and unfastened positions. The stud is adapted to be retained on the one member so that it can be shifted between an inserted position with the head adjacent the one member and an ejected position with the head spaced from the one member. A biasing spring is on the stud tending to direct the stud toward the ejected position so that when the stud is released from engagement with the receptacle the biasing spring will shift the stud to the ejected position. Mounting of the stud to the one member is facilitated by a resistant interference fit between the cam follower and a keyhole formed on the receiving surface.
摘要翻译：提供自动排出紧固螺柱用于与紧固件插座一起使用以形成用于将两个构件紧固在一起的紧固件组件。螺柱具有扩大的头部部分和从其延伸的杆部分，其适于延伸穿过待紧固的构件中的一个中的开口并与安装在要紧固的两个构件中的另一个上的插座接合。螺柱具有凸轮从动件，并且容器具有凸轮表面，凸轮表面定位成使得它们之间的接合和相对旋转将在紧固位置和非松开位置之间移动螺栓和容器。螺栓适于保持在一个构件上，使得其可以在与头部相邻的一个构件的插入位置和与头部与一个构件间隔开的弹出位置之间移动。螺栓上的偏置弹簧倾向于将螺柱朝向弹出位置引导，使得当螺柱从与接收器接合释放时，偏置弹簧将将螺柱移动到弹出位置。通过凸轮从动件与形成在接收表面上的锁孔之间的电阻过盈配合，可以将螺栓安装到一个构件上。

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