Device for guiding alignment in trailer hitching

Geometrical instruments – Straight-line light ray type – Structurally installed

Patent

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Details

33268, B60D 140

Patent

active

059706198

ABSTRACT:
A device for guiding alignment in trailer hitching with a trailer cup attachment and a towing vehicle attachment. The trailer cup attachment adjustably clips over the trailer cup on the drawbar of the trailer. The trailer cup attachment has at least one vertical rod and an alignment indicator equipped with guide lights and a sound generator to indicate when the ball on the towing vehicle is in hitching position relative to the trailer cup. The towing vehicle attachment has a mounting base for removable temporary mounting on the towing vehicle. Telescoping rods are rotatably mounted in the mounting base. At the end of the telescoping rods is a fluorescent colored activating ball which is positioned directly above the tow ball on the towing vehicle. The alignment guide and activating ball are positioned to be visible to the operator of the towing vehicle through a rear view mirror, rear window, or the like. As the towing vehicle backs toward the trailer, the activating ball and alignment guide provide immediate visual feedback to the operator of the towing vehicle, so that angle and speed of the backing vehicle may be accordingly adjusted. When the activating ball touches the alignment guide, a red light comes on and a sound is generated. This tells the operator of the towing vehicle that the tow ball is in hitching position relative to the trailer cup. The operator may then leave the vehicle and complete the hitching process.

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patent: 4856200 (1989-08-01), Riggs
patent: 5290056 (1994-03-01), Fath, IV
patent: 5669621 (1997-09-01), Lockwood

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