King pin lock

Details King pin lock King pin lock

1976-05-12

1977-06-28

Foss, J. Franklin

Locks

Special application

For control and machine elements

70167, E05B 6512, B60R 2500

Patent

active

040317277

ABSTRACT:
A locking mechanism prevents a conventional interlocking towing connection between a tractor and trailer, the locking mechanism includes a main body of forged steel, a king pin chamber and a secondary chamber opening into and situated at an angle with respect to the king pin chamber, a rotating lock bar mounted in the secondary chamber and having an end portion which may be rotated into a position adjacent to the reduced diameter portion of the king pin to prevent removal of the main body housing from the king pin, an increased diameter of the lock bar situating it within the main body housing thereby preventing the lock bar from being physically moved along its longitudinal axis in spite of the removal of a shouldered lock mechanism, the only means of removing the king pin lock being a 180.degree. rotation of the lock bar.

REFERENCES:
patent: 1702205 (1929-02-01), Freedman
patent: 1796517 (1931-03-01), Ganz
patent: 1912872 (1933-06-01), Trautner
patent: 2630699 (1953-03-01), Langdon
patent: 2755655 (1956-07-01), Maffey
patent: 3415085 (1968-12-01), Eble
patent: 3426561 (1969-02-01), Kinait
patent: 3600914 (1971-08-01), Johnson
patent: 3696646 (1972-10-01), Loscalzo
patent: 3832872 (1974-09-01), Gerlach
patent: 3922897 (1975-12-01), Mickelson

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