公开(公告)号：US3999491A

公开(公告)日：1976-12-28

申请号：US638167

申请日：1975-12-05

申请人： Kermit H. Wilson

发明人： Kermit H. Wilson

IPC分类号： A47B3/083 ,  A47B9/00 ,  E04G1/34 ,  E04H3/28 ,  A47B3/00

CPC分类号： E04H3/28 ,  E04G1/34

摘要： An elevationally adjustable folding stage with simplified one-man adjustment of height. The stage has two rectangular stage portions which are pivotable towards each other to a vertical storage position centered over a base frame containing main support legs. Outer support legs attached to the outer ends of the two stage members are adustable in length. Auxiliary support legs which are longer than the main support legs are mounted to the undersides of the two stage members adjacent the main support legs. For lower stage position, the auxiliary legs are folded up, and for the higher stage position the auxiliary legs are brought to their extended position while the stage members are folded. As the stage members are brought down to their horizontal position, a rocking action about the extended auxiliary leg lifts the stage to the upper position. The auxiliary legs and outer legs are optionally extendable to another higher position. In a preferred embodiment, the auxiliary legs have a curved ground contact portion to assist in the rocking action.

摘要翻译： 一个高度可调节的折叠台，简化了一人调整的高度。 舞台具有两个矩形舞台部分，其可相对于彼此枢转到以包含主支撑腿的底座为中心的垂直存储位置。 附接到两个台架构件的外端的外部支撑腿的长度是不稳定的。 比主支撑腿长的辅助支撑腿安装在邻近主支撑腿的两个台部件的下侧。 对于下阶段位置，辅助腿被折叠，并且对于较高的台阶位置，辅助腿在折叠阶段构件时被带到其延伸位置。 当舞台构件被降到水平位置时，关于延伸的辅助脚的摇摆动作将舞台提升到上部位置。 辅助腿和外腿可任选地延伸到另一较高位置。 在优选实施例中，辅助腿部具有弯曲的接地部分以辅助摇摆动作。