Coupling hook for a guide member of a three-point attachment of

Details Coupling hook for a guide member of a three-point attachment of Coupling hook for a guide member of a three-point attachment of

1976-10-08

1977-09-27

Song, Robert R.

Land vehicles

Wheeled

Articulated vehicle

B60D 110

Patent

active

040507157

ABSTRACT:
A coupling hook has a latch which is displaceable into the hook opening in its locked position to block a coupling pin received in a slot formed in a partially spherical member pivotally mounted in the opening. The latch is provided with a surface which engages a coacting surface on the partially spherical member to maintain the latch in its open position. When a coupling pin is received in the slot of the partially spherical member the member will be urged downwardly against a spring and the latch will be disengaged from the partially spherical member. A second spring then urges the latch into its locked position.

REFERENCES:
patent: 3361447 (1968-01-01), Engelmann
patent: 3539203 (1970-11-01), Baugh
patent: 4014562 (1977-03-01), Kunze

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