Tri-Ad Lock
Tri-Ad Lock
Undoubtedly, Cold Steel makes the safest, strongest, rocker-lock folders on the planet. It’s one of many qualities that separates Cold Steel from our competitors.
Our latest improvement is our patent-pending Tri-Ad™ lock. Andrew Demko is the originator of the Tri-Ad’s™ novel locking mechanism. It’s a successor to a patented lock design originally created by the very talented John PerMar.
The “Stop Pin”...
The cornerstone of the Tri-Ad’s™ strength, among other subtle refinements, is the inclusion
of a new “stop pin” which re-distributes the load of vertical positive and negative pressures on the lock.
The stop pin receives all positive pressure (pressure on the cutting edge) and transfers it into the handle frame and liners where it can be more effectively absorbed.
Negative pressures on the lock produced, for example, by prying, digging, piercing or even abusive spine whacks are redistributed because the stop pin receives the forward pressure from the rocker and transfers it into the liners protecting the rocker and its pivot from failing.
Self Adjusting...
Finally, outside of keeping the lock free from the buildup of pocket lint in the mechanism,
the Tri-Ad lock requires very little maintenance. It’s designed to be self adjusting,
in the sense that, over time as parts begin to wear, the Tri-Ad’s™ design will allow it to
adapt so the locking bar always wedges deeper in the lock channel between the stop pin and
the shoulder of the precision cut tang notch. This feature allows for a very safe and secure lock-up.
Now cold steel is pleased to give these real american heroes a knife named in their honor and expressly designed to serve them—the american lawman™. | Cold Steel’s offering in this arena, our new Black Rhino, doesn’t re-interpret the established classic lines, but instead provides some clever twists in terms of materials, performance and especially in the locking mechanism. |
Available in three sizes to suit the bold, the bolder and the boldest, the Espada was designed by custom knife maker Andrew Demko and Cold Steel President Lynn C. Thompson. | The Rajah folders, designed by Andrew Demko, are big enough to approximate the feel and heft a fixed blade Kukri. Their broad, downward curved blades exhibit the best of a Kukri’s characteristics. |
