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1. 发明授权

US6012545A Foldable vehicle ladder system 有权
标题翻译：可折叠车梯系统
公开(公告)号：US6012545A
公开(公告)日：2000-01-11
申请号：US134068
申请日：1998-08-13
申请人： Erling Faleide
发明人： Erling Faleide
IPC分类号： B60R3/02 , E06C5/02 , E06C9/08 , A62B5/00
CPC分类号： B60R3/02 , E06C5/02 , E06C9/085
摘要： A foldable vehicle ladder system for allowing a user to easily view and access the interior portion of a truck box and other equipment. The inventive device includes a pair of base members attached in parallel to a side of a truck box, a pair of lower arms pivotally attached to the pair of base member, a pair of upper arms pivotally attached to the upper portion of the pair of base members, a pair of support members having a plurality of rungs attached between are pivotally attached to the distal ends of the lower arms and the upper arms, and a pair of latches attached to the pair of base members for securing the ladder portion in a vertical storage position. The ladder portion of the invention extends downwardly at an angle to assist supporting the vertical weight of the user when climbing. A pair of upper wedges and a pair of lower wedges limit the downward movement of the lower arms and upper arms. The upper arms are preferably shorter in length than the lower arms to allow the upper portion of the invention to be closer to the truck box when extended downward. The lowest rung is preferably lower than the lower edge of the truck box when the present invention is fully extended to allow easy access for the user.
摘要翻译：一种可折叠的车梯系统，用于允许用户容易地观察和接近卡车箱和其他设备的内部部分。本发明的装置包括平行于卡车箱侧面的一对基座构件，一对可枢转地附接到一对基座构件的下臂，一对上臂可枢转地附接到一对底座的上部构件，具有附接在其间的多个梯级的一对支撑构件枢转地附接到下臂和上臂的远端，以及一对闩锁，附接到该对基座构件，用于将梯子部分固定在垂直方向上储存位置。本发明的梯子部分以一定角度向下延伸，以有助于在攀爬时支撑使用者的垂直重量。一对上楔形物和一对下楔形物限制了下臂和上臂的向下运动。上臂的长度优选比下臂短，以允许本发明的上部在向下延伸时更靠近卡车箱。当本发明被完全扩展以允许用户容易地访问时，最低的梯级优选地低于卡车箱的下边缘。

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