초록 ▼

A foldable utility cart is disclosed having first and second pairs of support legs (4, 6) at opposite sides thereof. The support legs (4, 6) are pivotal coupled at mid-sections (14, 16) so as to selectively diverge and converge into free standing and storage positions. The mid-sections (14, 16) have

A foldable utility cart is disclosed having first and second pairs of support legs (4, 6) at opposite sides thereof. The support legs (4, 6) are pivotal coupled at mid-sections (14, 16) so as to selectively diverge and converge into free standing and storage positions. The mid-sections (14, 16) have incut channels (24, 38) transversely disposed to each other and which interfit to being the pivotally connected legs (4, 6) into a common plane. Internal side walls (26, 28, or 40, 42) defining the incut channel of one leg mid-section brace against the top and bottom surfaces of the opposite leg mid-section. The side walls (26, 28 or 40, 42) are angularly profiled to limit and lock the pivotal rotation of the opposite leg at the free standing and storage angular positions. A shelf (12) is further provided which breaks upward at its mid-section into half sections (56, 58) which overlap along the break to lock the shelf (12) in a horizontal configuration. Overlapping structure (84, 86) is provided to limit downward deflection of the shelf sections (56, 58) beyond the horizontal plane and to brace the cart against accidental collapse.

대표청구항 ▼

In a collapsible cart of the type having first and second pairs of elongate crossing support legs at opposite sides, each said pair comprising an outwardly disposed leg mid-section and an inwardly disposed leg mid-section pivotally connected together, whereby remote upper and lower end segments of s

In a collapsible cart of the type having first and second pairs of elongate crossing support legs at opposite sides, each said pair comprising an outwardly disposed leg mid-section and an inwardly disposed leg mid-section pivotally connected together, whereby remote upper and lower end segments of said legs, which extend from said mid-sections, diverge into a free-standing position and converge into a storage position, the improvement comprising: said mid-sections of said pivotally connected legs having opposing incut channels extending transversely to each other and interfitting, whereby said legs at each said cart side being disposed in a common plane, each mid-section having top and bottom outward facing surfaces, with each mid-section channel extending between said surfaces defined by internally opposed side walls; each pair of said sidewalls defining each mid-section channel and comprising first and second segments tapering toward and adjoining along a fulcrum edge situated substantially intermediately of ends of said side walls; said top and bottom surfaces of one of said leg mid-sections engaging and reciprocally pivoting over said fulcrum edge of said opposed side walls of said opposite mid-section channel to engage substantially the length of first wall segments in said free standing position and engage substantially the length of second wall segments in said storage position.