Land vehicles – Wheeled – Articulated vehicle
Patent
1992-01-28
1993-08-31
Focarino, Margaret A.
Land vehicles
Wheeled
Articulated vehicle
280494, B60D 150
Patent
active
052402738
ABSTRACT:
A tow bar for a trailer comprises forward and rear sections which are pivotable relative to one another about a substantially horizontal axis, to reduce the stresses to which the tow bar is subjected when travelling across rough terrain. An axially compressible spring, such as a stack of Belleville springs mounted on a cylindrical shaft, extends between the two tow bar sections to absorb some of the stresses caused by pitching movement of the trailer relative to the towing vehicle.
REFERENCES:
patent: 1819393 (1931-08-01), Staley
patent: 2595474 (1952-05-01), Marvin
patent: 2797934 (1957-07-01), Helgeson
patent: 3414294 (1968-12-01), Moulton
patent: 3623743 (1971-11-01), Rohrer
patent: 3692331 (1972-09-01), Vegors
patent: 3700053 (1972-10-01), Glissendorf
patent: 3730542 (1973-05-01), Chadwick
Joyce Peter
Stead Gary J. C.
Stead Terence C.
Evridge Holdings Limited
Focarino Margaret A.
Johnson Victor E.
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