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1. 发明授权

US06938912B1 Trailer hitch protectors and methods 失效
标题翻译：拖车挂钩保护器和方法
公开(公告)号：US06938912B1
公开(公告)日：2005-09-06
申请号：US10839218
申请日：2004-05-06
申请人： Don S. Norton , Eddie Slater
发明人： Don S. Norton , Eddie Slater
IPC分类号： B60D1/06 , B60D1/60 , B60R21/34
CPC分类号： B60D1/605 , B60D1/06 , B60D1/60
摘要： Trailer hitch protectors have a flexible body member sized and configured to be sleeved over a tow bar tongue associated with a trailer hitch assembly. The body member most preferably includes an opposed pair of generally U-shaped inner and outer lateral walls which are spaced apart from one another so as to define a cushion space therebetween and thereby provide cushioned protection laterally of the tow bar tongue when received within the body member. A series of spaced-apart flexible connecting webs extending between said inner and outer lateral walls within the cushion space may be provided so as to provide further cushioning effect. In especially preferred embodiments, the flexible body member has an upper wall joined to both the inner and outer lateral walls, and has an aperture adapted to surround a hitch ball attached to the tow bar tongue of the trailer hitch assembly. The upper wall will thereby include a pair of opposed upper neck flanges which define therebetween a slit opening to allow access to said aperture therein. Similarly, the flexible body member may include a lower wall joined to the inner lateral wall and spaced from the upper wall to define a generally U-shaped channel therewith. The U-shaped channel thus accommodates a rearward portion of the tow bar tongue of the trailer hitch assembly so as to allow the body member to be sleeved thereover. The lower wall most preferably has an aperture in opposed registry to the aperture formed in said upper wall.
摘要翻译：拖车牵引保护器具有柔性本体构件，其尺寸和构造被套在与拖车悬挂组件相关联的拖杆条上。主体构件最优选地包括彼此间隔开的相对的一对大致U形的内侧壁和外侧壁，以便在它们之间限定缓冲空间，从而当被接收在主体内时在拖杆杆侧面提供缓冲保护会员。可以提供在缓冲空间内的内外侧壁之间延伸的一系列间隔开的柔性连接腹板，以提供进一步的缓冲作用。在特别优选的实施例中，柔性主体构件具有连接到内侧壁和外侧壁两者的上壁，并且具有适于包围附接到拖车悬挂组件的拖杆杆的搭接球的孔。因此，上壁将包括一对相对的上颈部凸缘，它们在其间限定狭缝开口以允许其中的所述孔进入。类似地，柔性主体构件可以包括连接到内侧壁的下壁并且与上壁间隔开以限定与其大致为U形的通道。因此，U形通道因此容纳拖车牵引组件的拖杆杆的后部，以便允许主体部件在其上套管。下壁最优选具有与形成在所述上壁中的孔相对的孔。

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