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US 2010/0071996 A1Published application
Collapsible platform ladder
OwnerWen-Hung Huanginventor
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OwnerWen-Hung Huanginventor
Estimating the term…
The present invention is to provide a collapsible platform ladder, which comprises a pair platform decks, a pair ladder frames with telescopic hollow tubes and two pair collapsible floor feet, wherein the pair platform decks are abutted each other in linked way, the pair ladder frames are disposed on both distal outer lateral ends thereof respectively, and each pair pivotal floor feet are disposed at the ends for each ladder frame in pivotal manner respectively. In operation, telescopic hollow tubes of ladder frame can be pulled or retracted in different lengths to adjust working height, while in packing, floor feet are collapsed under ladder frames, ladder frames are collapsed under platform decks, platform decks are collapsed each other to become a compact collapsed ladder for easily storing and transportation
A collapsible platform ladder, whose material is selected from metal of iron, steel, aluminum and rigid material of fiberglass, carbonated fiber or plastics as well as finished square tube, flat tube or plumbing pipe, comprises a pair of platform decks, a pair of ladder frames and two pair of collapsible floor feet, wherein the pair of platform decks, which are abutted each other in linked way by each inner end thereof, comprises a pair of linking brackets disposed at the bottom side of the abutted inner end for linking each other, the pair of ladder frames are disposed on both distal outer lateral ends thereof respectively, and each pair of pivotal floor feet are disposed at the ends for each ladder frame in pivotal manner respectively.
Dependencies are inferred from the claim text.