Land vehicles – Wheeled – Articulated vehicle
Patent
1986-09-05
1988-12-20
Mitchell, David M.
Land vehicles
Wheeled
Articulated vehicle
B60D 114
Patent
active
047921536
ABSTRACT:
A trailer hitch adapted to be attached to a towing vehicle and to be removably connected to a vehicle to be towed. The trailer hitch includes a tubular housing open at the rear end thereof and adapted to be rigidly attached to the towing vehicle. A hitch bar is slidably mounted in the housing and comprised of a front segment slidably received in the housing and a rear segment pivotally mounted on the rear end of the front segment for rotation about a generally vertical axis. A hitch ball is mounted on the rear end of the rear segment and is pivotal through an angle of approximately 180.degree., i.e., an angle of 90.degree. on either side of a center line extending longitudinally of the hitch bar. The housing has a pair of side bolts shiftably mounted thereon for insertion into respective side grooves or recesses in the sides of the front segment of the hitch bar. The bolts limit the rearward travel of the hitch bar relative to the housing and allow forward movement of the front segment of the hitch bar until the inner ends of the bolts enter recesses in the side of the front segment of the hitch bar to thereby lock the hitch bar to the housing. A shaft is removably coupled to the rear segment and the hitch bar when the hitch ball is in its forwardmost position to thereby positively lock the hitch bar to the pivotal housing during a towing phase of the use of the trailer hitch.
REFERENCES:
patent: 2323559 (1943-07-01), Mills
patent: 3361446 (1968-01-01), Jeffes
patent: 3437355 (1969-04-01), Jeffes
patent: 3521908 (1970-07-01), Carter
patent: 4125272 (1978-11-01), Putnam, Jr. et al.
patent: 4606549 (1986-08-01), Williams, Jr.
Mitchell David M.
Watts Charles R.
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