A - Human Necessities – 47 – B
Patent
A - Human Necessities
47
B
A47B 97/00 (2006.01) A47B 43/00 (2006.01) A47B 61/00 (2006.01) A47B 88/04 (2006.01) A47B 96/14 (2006.01) A47C 4/00 (2006.01) A47C 4/28 (2006.01) A47C 7/00 (2006.01)
Patent
CA 2413196
An improved collapsible supporting rack structure with its bearing strength reinforced, the structure is comprised of: a plurality of link sets with their links in pairs pivotally cross-linking with each another; a plurality of connecting seats connected each with more than one link, thereby the link sets connecting with the connecting seats form a supporting rack; the structure is characterized by that: the structure is provided further with at least a post set; each post set includes at least two mutually parallel posts respectively located at the two lateral sides of a link set, the post has on each of the two ends thereof a linking block; the linking block includes a post seat fixed onto the post and a slide block slipped over a neighboring link. When the supporting rack is stretched out, the posts are moved by sliding of the slide blocks on the links, and are engaged in corresponding ones of the upper and lower connecting seats and supported by them, thereby the capability of loading of it can be increased.
Na
Yu James C. W.
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