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1. 发明授权

US4462623A Safety door stopper 失效
标题翻译：安全门挡板
公开(公告)号：US4462623A
公开(公告)日：1984-07-31
申请号：US426397
申请日：1982-09-29
申请人： Craig A. Grant
发明人： Craig A. Grant
IPC分类号： E05C17/48 , E05C1/10
CPC分类号： E05C17/48 , Y10S292/04 , Y10S292/15 , Y10S292/22 , Y10T16/61 , Y10T292/0997
摘要： A foot operated door stop adapted to be positioned in a floor opening adjacent the door so as to effectively limit its degree of opening as a safety and anti-burglar means. This door stopper is in the form of inner and outer telescopically mounted cylindrical members. The inner cylinder is spring urged to an extended position wherein such member projects upwardly from the floor in a door blocking position. The inner member is guided by specific means at the upper and lower ends of the outer member and a particular detent assembly is mounted in such inner member so as to present the means by which the inner member may be held in its retracted or non-operative position. The inner cylinder is also adapted to freely rotate with respect to the outer cylinder.
摘要翻译：一种适于定位在邻近门的地板开口中的脚踏门挡块，以便有效地限制其作为安全和防盗装置的开度。该门止动器是内部和外部可伸缩安装的圆柱形构件的形式。内筒被弹簧推动到延伸位置，其中这种构件在门阻挡位置从地板向上突出。内部构件通过特定装置在外部构件的上端和下端处被引导，并且特定的制动组件安装在该内部构件中，以便呈现用于将内部构件保持在其缩回或不操作的装置位置。内筒也适于相对于外筒自由旋转。

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