Foldable hand truck capable of traversing obstacles
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United States of America Patent
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Nov 20, 2018
Grant Date -
N/A
app pub date -
Feb 23, 2018
filing date -
Feb 23, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a folding hand truck capable of moving over uneven or spongy surfaces and surmounting obstacles. The chassis includes a frame having a lower end and a reference plane, a platform attached rotatable around pivot axis to said lower end, two arms, each having a first axis and a second axis, each of said arms attached rotatable around the first axis to said lower end and configured for attaching a wheel arrangement rotatable around the second axis and having a diameter at least equal to a half of a width of said frame, and two intermediate elements, each of said intermediate elements configured for synchronizing motions of said platform and one of said arms providing for said platform and said arms linearly interdepended rotation.
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