Land vehicles – Wheeled – Extensible
Patent
1975-10-03
1977-06-28
Song, Robert R.
Land vehicles
Wheeled
Extensible
B62B 1100
Patent
active
040321738
ABSTRACT:
A wheeled carrier such as a stroller comprising a frame having a base provided with wheels and a collapsible support movable between an erected position wherein it extends upwardly from the base and a collapsed position wherein it lies generally flat on the base, and a collapsible seat which is supported by a part of the support movable between an erected position to position the seat for use when the support is erected and a collapsed position to collapse the seat when the support is collapsed.
The invention provides locking means such as toggle mechanisms connected between parts of the support and operable to lock the support in the erected position by movement of the seat-supporting part downwardly towards its erected position and releasable to permit collapsing of the support by movement of the seat-supporting part upwardly towards its collapsed position.
The support comprises frame members pivotally connected together and to the base. The base comprises two spaced members having pivotally mounted thereon two independent collapsible wheel-carrying structures, and the base members are held in fixed spaced-apart relation by the frame members pivotally connected thereto.
REFERENCES:
patent: 1200563 (1916-10-01), Wiser
patent: 2886337 (1959-05-01), Quisenberry
patent: 3326570 (1967-06-01), Burnham
patent: 3443823 (1969-05-01), Perego
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