Material or article handling – Self-loading or unloading vehicles – With load-receiving portion – or significant section thereof,...
Patent
1981-12-15
1984-09-18
Spar, Robert J.
Material or article handling
Self-loading or unloading vehicles
With load-receiving portion, or significant section thereof,...
280423B, B62D 5306
Patent
active
044721005
ABSTRACT:
A gooseneck apparatus for connecting a lowboy trailer to a truck-tractor includes a horizontal section having a king pin connection and a vertical section. A trailer coupling apparatus is secured to the vertical section and to the tractor. A hydraulically actuated lift mechanism positions the gooseneck apparatus with respect to a tractor bed. The gooseneck apparatus includes forward slotted plates adapted to mate with coupling pins on the trailer for vertical support of the trailer. A horizontal coupling includes a pneumatic operated vertical coupling pin on the gooseneck and releasably placed in a pin opening in a front plate on the trailer. The vertical sections include load walls which pivot between a vertical support position and a release position. The latter permits collapse of the gooseneck apparatus and the trailer bed to allow separation of the trailer and gooseneck apparatus. A manually operated linkage is coupled to move said load walls between said positions during the connecting and disconnecting of the trailer. A mechanical latch safety unit is connected to the vertical coupling pin positioning linkage to lock the pin in the operating position and is also connected to the manually operated linkage. The safety unit is constructed such that the load walls can only move to the load position with the safety unit moved to the locking position to ensure latching of the coupling pin in place with the trailer connected to the truck-tractor.
REFERENCES:
patent: 3043609 (1962-07-01), Talbert
patent: 3066954 (1962-12-01), Brockman
patent: 3215449 (1965-11-01), Talbert
patent: 3536340 (1970-10-01), Talbert
patent: 3866947 (1975-02-01), Yakubow
patent: 4219211 (1980-08-01), Sauers
patent: 4367884 (1983-01-01), Johnson et al.
patent: 4390192 (1983-01-01), Wagner
Muncy Ken
Spar Robert J.
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