Land vehicles – Wheeled – Convertible
Patent
1977-08-31
1978-09-19
Song, Robert R.
Land vehicles
Wheeled
Convertible
280651, B62B 1100
Patent
active
041149149
ABSTRACT:
A foldable multi-purpose cart is provided in which two rectangular frames on which webbing is supported are hingedly connected together. The hinge means include means for locking the hinge means when the cart is fully opened with the frames being angularly displaced from each other by about 180.degree.. Two respective pairs of wheels are rotatably mounted at the corners of the respective frames remote from the hinged connection of the frames. One of the frames is sufficiently smaller than the other in the dimension normal to the hinging axis to permit the frames to be folded together, without mutual interference of the respective pairs of wheels, into superposed relationship by relative rotation of the frames toward each other. A shaft and handle are provided for pulling the cart, with means hingedly operatively connecting the shaft to one of the frames at a point between the pair of wheels mounted on the frame, the hinged connection means including means forming a pivotal axis for the shaft substantially parallel to the axis of the wheels for permitting the shaft to be pivoted into superposed relationship with the frame to which it is connected for compact storage of the cart or to be pivoted so that the shaft and handle extend beyond the frame for convenient pulling of the cart.
REFERENCES:
patent: 1582045 (1926-04-01), Howe
patent: 2789829 (1957-04-01), Parker
patent: 2840142 (1958-06-01), Hang
patent: 2967058 (1961-01-01), Hoffmann
patent: 3222100 (1965-12-01), Lindzy
patent: 3305243 (1967-02-01), Manfredi
patent: 3580592 (1971-05-01), Schrecengost
patent: 3693993 (1972-09-01), Mazzarelli
patent: 3860254 (1975-01-01), Wegener
Hamburg C. Bruce
Song Robert R.
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