US 12,263,876 B1
Extended collapsible wagon
Shou Qiang Zhu, Wan Chai (HK)
Assigned to MAXTON ENGINEERING LTD., Central (HK)
Filed by MAXTON ENGINEERING LTD., Wan Chai (HK)
Filed on Mar. 10, 2022, as Appl. No. 17/692,160.
Claims priority of provisional application 63/159,426, filed on Mar. 10, 2021.
Int. Cl. B62B 3/02 (2006.01); B62B 3/00 (2006.01); B62B 5/06 (2006.01)
CPC B62B 3/02 (2013.01) [B62B 3/007 (2013.01); B62B 5/067 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An extended collapsible wagon, comprising:
a first supporting frame;
a second supporting frame; and
a pair of collapsible connecting members pivotally connected to an upper portion and a lower portion of the respective first and second supporting frames,
wherein the pair of connecting members can be configured between an extended configuration in which the first and second supporting frames are spaced apart and a receiving space is defined and extended between the first and second supporting frames and the pair of connecting members, and a collapsed configuration in which the first supporting frame is brought close to the second supporting frame to collapse the receiving space, and
wherein each connecting member comprises three scissor hinge structures pivotally interconnecting between the first and second supporting frames; and
a foldable base frame pivotally coupled to the first and second supporting frames and the pair of connecting members, located below the receiving space defined between the first and second supporting frames and the pair of connecting members, providing a support structure to support a base of a container to support heavy items on the foldable base frame, wherein the foldable base frame comprises:
first and second base frame panels each below respective one of two adjacent scissor hinge structures;
a foldable third base frame panel below the third scissor hinge structure and having two sub-panels pivotally connected to fold,
wherein the first base frame panel is pivotally connected to the second base frame panel, and the second base frame panel is pivotally connected to the third base frame, thereby forming an overall foldable base frame structure, in which the first base frame panel, the second base frame panel and the third base frame panel are foldable with respect to one another.