公开(公告)号：US5839462A

公开(公告)日：1998-11-24

申请号：US858728

申请日：1997-05-19

申请人： Paul G. Randall

发明人： Paul G. Randall

IPC分类号： E04H6/04 ,  E04H15/42 ,  E04H15/52 ,  E04H15/44

CPC分类号： E04H6/04 ,  E04H15/42 ,  E04H15/52

摘要： A canopy structure includes a support frame with a plurality of extensible and retractable canopy support sections. Each of the canopy support sections includes a pair of upper transverse support members and two pairs of side support members. Each pair of side support members have lower portions which are pivotally secured to each other and upper portions which are rigidly secured to ends of the upper transverse support members whereby in a retracted position the side support members extend substantially vertical and in an extended position the side support members extend at an acute angle to each other with the upper portions of the side support members spaced apart. The canopy support frame also includes end frames with upper transverse support members secured to the transverse support members of adjacent canopy support sections and generally vertically extending side support members connected to adjacent side support members of adjacent canopy support sections by means for retaining the side support members of the end frames and the adjacent support sections in a fixed, spaced relationship when the canopy structure is extended to maintain the canopy structure in an extended mode. A cover, secured to the canopy support sections and end frames, connects the upper transverse support members of adjacent canopy support sections.

摘要翻译： 冠层结构包括具有多个可伸缩的顶篷支撑部分的支撑框架。 每个顶盖支撑部分包括一对上横向支撑构件和两对侧支撑构件。 每对侧支撑构件具有彼此枢转地固定的下部和刚性地固定到上横向支撑构件的端部的上部，从而在缩回位置中，侧支撑构件基本上垂直延伸并且在延伸位置中延伸 支撑构件以侧面支撑构件的上部间隔开的方式彼此以锐角延伸。 顶篷支撑框架还包括端框架，其上横向支撑构件固定到相邻顶篷支撑部分的横向支撑构件，并且通常垂直延伸的侧支撑构件通过用于保持侧支撑构件的装置连接到相邻顶盖支撑部分的相邻侧支撑构件 的端框架和相邻的支撑部分以固定的间隔开的关系延伸，以保持顶盖结构处于延伸模式。 固定到顶篷支撑部分和端部框架的盖子连接相邻冠层支撑部分的上横向支撑构件。

公开(公告)号：US4448133A

公开(公告)日：1984-05-15

申请号：US248946

申请日：1981-03-30

申请人： Paul G. Randall

发明人： Paul G. Randall

IPC分类号： A47B27/02 ,  A47B43/00 ,  A47F5/12

CPC分类号： A47B43/00 ,  A47B27/02

摘要： A collapsible drafting table which in the open configuration has the appearance of an attractive contemporary desk and when collapsed, occupies one-fifth the space of the open use configuration. The collapsible drafting table has a rigid central structure which has side panels hingedly attached thereto and a drafting top slidably engaged thereto.

摘要翻译： 一个可折叠的起草台，在开放式配置中具有迷人的当代桌子的外观，当折叠时占据开放使用配置空间的五分之一。 可折叠牵伸台具有刚性的中心结构，其具有铰接地附接到其上的侧板和与其可滑动地接合的牵伸顶部。