Land vehicles – Wheeled – Articulated vehicle
Patent
1978-02-13
1979-10-23
Goodman, Philip
Land vehicles
Wheeled
Articulated vehicle
280103, B62D 1304
Patent
active
041718259
ABSTRACT:
A steerable towing device having at least two wheels, a frame, a tongue having at one end a socket adapted for connection to a first ball on a towing means and having the other end connected to said frame, at least two axially aligned wheels, a steering assembly having a bifurcated steering crank having a center pivot point and two extended arms of predetermined length extending from the center pivot point with the extended arms having an obtuse angle therebetween, a steering arm having at one end a socket for connection to a second ball on a towing vehicle spaced a selected distance from the first ball and the other end of the steering arm being pivotally connected to the end of one extended arm of the bifurcated crank, a connecting rod pivotally connected to the end of the other extended arm and a steering assembly which includes an integral drag arm and a tie rod connecting arm connected to steer one of the two axially aligned wheels and a separate tie rod connecting arm connected to steer the other of the two axially aligned wheels with each end of the tie rod connecting arms pivotally attached to a tie rod and the end of the drag arm pivotally attached to the connecting rod and wherein the steering assembly is responsive to rotation of the bifurcated steering crank to turn each wheel through a different arcuate motion in unison causing the steerable towing device to follow the towing vehicle through any turn, is shown.
REFERENCES:
patent: 2100447 (1937-11-01), Mahaffey
patent: 2450215 (1948-09-01), Wilson
patent: 2533553 (1950-12-01), Burns
patent: 3876240 (1975-04-01), Watson
patent: 3888515 (1975-06-01), Winter
Goodman Philip
Meaney, Jr. Daniel J.
Robinson Robby
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