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1. 发明授权

US4141179A Vehicle door arrangements 失效
标题翻译：车门安排
公开(公告)号：US4141179A
公开(公告)日：1979-02-27
申请号：US861665
申请日：1977-12-19
申请人： John C. Newson , Geoffrey R. Tregoning , James B. Digby
发明人： John C. Newson , Geoffrey R. Tregoning , James B. Digby
IPC分类号： B60J5/06 , B61D19/00 , E06B7/18 , E06B7/23 , E06B7/28
CPC分类号： B61D19/005 , B60J5/062 , E06B7/18 , E06B7/2318
摘要： A vehicle door arrangement in which a lower edge part of the door is retractable upwards into the main part of the door prior to opening. This ensures that when the vehicle is standing alongside a platform, there is no risk of the bottom of the door fouling the platform. The arrangement is particularly suitable for slide and plug doors which move outwards and then alongside the vehicle when opening. Even if the bottom of the door is normally above the platform, the invention provides an essential safety feature to cope with situations where the vehicle is abnormally depressed, e.g. by excessive loading or suspension failure. Moreover, the invention enables the height of the interior floor of vehicle to be optimized with respect to platform level so as to enhance passenger safety and convenience, whereas with prior art rigid one-piece doors, clearance requirements dictated non-optimum floor heights.
摘要翻译：一种车门装置，其中门的下边缘部分在打开之前可向上伸入门的主要部分。这确保了当车辆与平台一起站立时，门的底部没有污染平台的风险。该装置特别适用于打开时向外移动，然后与车辆一起移动的滑动和插塞门。即使门的底部通常在平台的上方，本发明提供了一种基本的安全特征，以应对车辆异常压下的情况，例如，通过过载或悬挂失效。此外，本发明能够使车辆内部底板的高度相对于平台水平进行优化，以便增强乘客的安全性和便利性，而对于现有技术的刚性单件门，间隙要求决定了非最佳地板高度。

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