Trailer ball-hitch safety device - has component movable to form larger opening for ball to pass through

摘要

The safety device is for the ball hitch between a car and trailer, being mounted below the hitch. It has a component (4) movable to form a larger opening for the ball (2) to pass through, after which it leaves one smaller than the ball to prevent this coming free. Typically this can consist of a spring-loaded pin (6), and whose position is easily visible.