Trailer system

Land vehicles – Wheeled – Articulated vehicle

Patent

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Details

Other Related Categories

2804911, 2804781, 16229, 16366, 224314, B60D 140

Type

Patent

Status

active

Patent number

056580037

Description

ABSTRACT:
A trailer system has a drawbar that connects to a flat bed via a laterally-swiveling joint. The drawbar has a forward member and an aft member. A clevis structure on the mating-end portion of each drawbar member is formed by two plates fixed to the sides of each drawbar and extending beyond its mating end. The plates on the forward drawbar member are less that half the height thereof and are fixed flush with the upper edge of the drawbar. The plates on the aft drawbar member are similar, and are fixed to the lower half of the drawbar. Aligned holes in the free ends of each pair of plate extensions can be aligned with a hole in the opposite drawbar member. The selection of bolts placed in these aligned holes can make the drawbar rigid for towing (if both bolts are in place), or its two members disconnected (if both bolts are removed), or the drawbar can be made bendable upwardly or downwardly, depending on which set of aligned holes is fastened with a bolt. Since the two sets of plate extensions are parallel to each other, each acts as a stop to limit the rotation of the other drawbar member, so that upward and downward bending of the drawbar are mutually-exclusive, when only one bolt is in place.

REFERENCES:
patent: 2436228 (1948-02-01), Purchase
patent: 2654516 (1953-10-01), Edwards
patent: 3201821 (1965-08-01), Ruckstuhl
patent: 4398742 (1983-08-01), Sanders
patent: 4632289 (1986-12-01), Morisette
patent: 5188385 (1993-02-01), Wilson
patent: 5203582 (1993-04-01), Smyly, Sr.
patent: 5226657 (1993-07-01), Dolphin
patent: 5493760 (1996-02-01), Takimoto

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