Pintle hook

Details Pintle hook Pintle hook

1992-12-28

1994-07-26

Mitchell, David M.

Land vehicles

Wheeled

Articulated vehicle

B60D 128

Patent

active

053322509

ABSTRACT:
A pintle hook hitch having an outwardly upwardly curved, fixed horn, an outwardly extending pivotal latch arm movable between a lower, closed condition over the horn, and a raised open condition, the body having a jamb face for engagement by a lock, a primary lock pivotally shiftable between a lowered and locked position for abutment with the jamb face, and an unlocked position pivotally raised away from the jamb face, a vertical spring biasing the lock toward the lowered lock position, the primary lock also being laterally shiftable with a push button pivot pin between a first lateral position and a second lateral position, a lateral spring biasing the primary lock laterally toward the first lateral position. To pivotally open the latch arm, it is necessary to perform a three-step process of first pushing the second pivot pin laterally via the push button against the lateral spring bias to laterally shift the primary lock, then lift the primary lock against the bias of the vertical spring, and then lift the latch arm.

REFERENCES:
patent: 3963266 (1976-06-01), Thelin
patent: 4568098 (1986-02-01), Landry, Jr.
patent: 4758015 (1988-07-01), Pixley
Holland PH-200 leaflet, copyright 1989.

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