Tricycle

Details Tricycle Tricycle

1974-09-09

1976-12-07

Song, Robert R.

Land vehicles

Wheeled

Occupant propelled type

280111, B62K 506

Patent

active

039958752

ABSTRACT:
A tricycle having unique rear-wheel suspension means is provided. The rear-wheel suspension means includes a rear frame rotatably bearing two rear wheels. The rear frame is disclosed with a connection shaft perpendicularly thereto substantially at its central portion. The connection shaft is rotatably inserted into a cylindrical boss which is provided adjacent to the end portion of the main frame of the tricycle such that when the connection shaft is inserted into the boss and when the tricycle is normally put on the ground, the extension of the axis of the shaft passes through a certain point below the ground contact point of the front wheel.

REFERENCES:
patent: 387631 (1888-08-01), Duryea
patent: 2474946 (1949-07-01), Kinslow
patent: 2696387 (1954-12-01), Nordin
patent: 3504934 (1970-04-01), Wallis
patent: 3583727 (1971-06-01), Wallis
patent: 3649038 (1972-03-01), Huckenbeck
patent: 3827519 (1974-08-01), Snider
patent: 3880449 (1975-04-01), Wada

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