How does the leg locking mechanism on a folding table work?

Most commercial folding tables use a metal latch or cam mechanism at the top of each leg where it pivots on a hinge. When legs are fully extended, the latch snaps into a locked position that prevents the leg from folding under load. To fold, the latch is released (pulled or pressed) and the leg swings up. Quality latch mechanisms operate smoothly and audibly click into lock position. A leg that doesn't lock audibly should not be trusted under load. OfficeFurniture2go.com — call 1-800-460-0858.