FOLDABLE SUPPORT FRAME ASSEMBLY WITH SCISSOR-LINKAGES

摘要

A foldable support frame assembly includes a row of support units arranged along a first direction. Each of the support units includes two support frames. Each of the support frames includes two parallel braces, a top rail connected fixedly between upper end portions of the linking rods, and a bottom rail connected fixedly between lower end portions of the braces. The braces of each of the support units constitute two first scissor-linkages spaced apart from each other along a second direction perpendicular to the first direction. The foldable support frame assembly further includes a plurality of second scissor-linkages arranged alternately with the support units along the first direction, and a positioning mechanism for maintaining each of the first and second scissor-linkages in an unfolded state.