Land vehicles – Wheeled – Articulated vehicle
Patent
1979-11-27
1981-11-03
Silverstrim, John P.
Land vehicles
Wheeled
Articulated vehicle
280506, B60D 102
Patent
active
042982120
ABSTRACT:
A draft vehicle including a first rearwardly projecting supportive tow bar having a first upstanding opening therethrough is provided and a towed apparatus including a second forwardly projecting tow bar horizontally lapped over and supported from the first tow bar is also provided. A second opening is formed through the second tow bar and registered with the first opening and an upstanding hitch pin is passed through the openings coupling the first and second tow bars together. The hitch pin includes an upper end portion projecting above the second tow bar and abutment structure is mounted on the upper end portion of the pin for vertical shifting relative thereto above a lower limit position on the pin. Further, strong spring structure is operatively connected between the abutment structure and the pin for yieldingly biasing the abutment structure downwardly along the pin toward its lower limit position thereon.
REFERENCES:
patent: 1887054 (1932-11-01), Wood
patent: 2441430 (1948-05-01), McCullar
patent: 4099739 (1978-07-01), Foley
Jacobson Harvey B.
Silverstrim John P.
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