Folding support structure

Details Folding support structure Folding support structure

1975-12-12

1976-12-07

Song, Robert R.

Land vehicles

Wheeled

Extensible

280 42, 280650, B62B 1100

Patent

active

039958825

ABSTRACT:
A folding structure in one embodiment including ground wheels and handles to form a child's stroller, the structure having a pair of elongated frame tubes that are laterally foldable and held together at two spaced points on each of the tubes by pivotally connected front and rear X braces, the structure also including a pair of elongated seat tubes pivotally attached to main frame tube-supported folding mechanisms that allow the seat tubes to move upwardly and in closer angular alignment with the main frame tubes when the latter move closer together as the structure is changed from its unfolded to folded configuration, resulting in a folded cross-sectional area not much greater than the sum of the cross-sectional areas of the individual members.

REFERENCES:
patent: 2722972 (1955-11-01), Altruda
patent: 3797848 (1974-03-01), Burnham
patent: 3836164 (1974-09-01), Sugino
patent: 3848884 (1974-11-01), Lines

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