FOLDABLE PUSHCART
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United States of America Patent
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N/A
Issued Date -
Oct 21, 2010
app pub date -
Apr 13, 2010
filing date -
Apr 21, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A foldable pushcart includes: a pair of first vertical frame members extending vertically and parallel to each other on a back side of the pushcart; a first cross member including two bar members, which cross each other in an X shape, and which have their respective upper ends slidably supported by the pair of first vertical frame members, respectively, and have their respective lower ends pivotally coupled to the pair of first vertical frame members, respectively; a first link member having its one end pivotally coupled to one of the two bar members of the first cross member; a second link member having its one end pivotally coupled to the other bar member of the first cross member, and having the other end pivotally coupled to the other end of the first link member; a first open-state lock mechanism for fixing a crossing angle between the two bar members of the first cross member by inhibiting bending between the first link member and the second link member; and a second open-state lock mechanism for fixing a crossing angle between the first link member and one of the two bar members of the first cross member.
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