有用于建立一个辅助底板（1）到原来的装载地板（2）的车辆和充电的由相应的安装接头（与设置在阶梯孔的保持元件（3）的装置中的绑扎的所述辅助基板（1），其中所述开口的紧固系统 4）具有第一大径孔部（5）和一个第二较小直径的孔部分（6），和（具有螺纹元件7），其固定所述保持元件（3）在一个（在车辆制造商的原始装载底板2）现有紧固螺纹 根据本发明的保持构件3具有原始装载平台2远离圆盘形的基体，其中，与所述辅助板的保持元件3 8被布置在所述第一开口区域5，呈现，向其中一个向下突出以细长的脊9的原始装载地板2连接，这在 第二开口区域6 被放置在辅助板，由此在基体8的下侧16和在一方面第一开口部5和基体8的圆周表面14和另一方面的第一开口部5的侧壁的内表面15的底部17之间，有微小的间隙是存在的。

There is a fastening system for establishing a supplemental bottom plate (1) to the original loading floor (2) of a vehicle and the lashing of charge by means of corresponding mounting fittings (with a holding element (3) which is arranged in a stepped hole of said auxiliary base plate (1), wherein the opening 4) has a first larger diameter aperture portion (5) and a second smaller diameter aperture portion (6), and (with a threaded element 7), which fixes the holding element (3) at one (in the original loading base 2) of the vehicle manufacturer existing fastening thread presented, according to the invention the retaining member 3 has a the original loading platform 2 remote from the disc-shaped base body 8 in which, with the holding element 3 of the auxiliary plate is arranged in the first opening region 5, to which a protruding downward to the original loading floor 2 of elongated ridge 9 is connected, which in the second opening region 6 is placed the auxiliary plate, whereby between the underside 16 of the base body 8 and the bottom 17 of the first opening portion 5 on the one hand and the circumferential surface 14 of the base body 8 and the inner surface 15 of the side wall of the first opening portion 5 on the other hand, a slight clearance is present.