For those curious about the difference in the Tri-ad lock vs traditional lockbacks

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Feb 25, 2009
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This is it. Sorry I gotta run now but I will edit this post later. Feel free to comment.

IMAG0086.jpg
 
The depth of engagement is impressive on my Tri-Ad locks too.:)
I wonder how strong a traditional lock-back design would be with that much engagement?
 
Nice comparison shot. Thanks for posting that.
 
It would be no problem for a company like Spyderco to increase the amount of engagement in their lockbacks but that would mean sacrificing ease of use. Anyone who owns a tri ad lock will probably agree that its much harder to close compared to a traditional lockback.
 
The depth of engagement is impressive on my Tri-Ad locks too.:)
I wonder how strong a traditional lock-back design would be with that much engagement?
It would definitely improve things. But the absence of the stoppin would still be felt in the long run. :D
That Spyderco looks flimsy in comparison. :eek:
 
It would definitely improve things. But the absence of the stoppin would still be felt in the long run. :D

I do like how the stop pin eliminates the one thing which always bugged me about lock-backs...the inevitable (if slight) vertical movement of the blade whan cutting things with force.:)
 
It would be no problem for a company like Spyderco to increase the amount of engagement in their lockbacks but that would mean sacrificing ease of use. Anyone who owns a tri ad lock will probably agree that its much harder to close compared to a traditional lockback.


My American Lawman has a stiffer lock than my Endura...but not significantly so. I have no problem opening or closing it.
 
It would be no problem for a company like Spyderco to increase the amount of engagement in their lockbacks but that would mean sacrificing ease of use. Anyone who owns a tri ad lock will probably agree that its much harder to close compared to a traditional lockback.

The new Voyagers are very easy to close - they must have took it into account when people mentioned it about the earlier Tri-Ad models.
 
It would definitely improve things. But the absence of the stoppin would still be felt in the long run. :D
That Spyderco looks flimsy in comparison. :eek:
I often wonder about people's obsessions with lock strength, especially since that's generally the least stressed part of a knife. Not many people express the same concern with pivot pin strength or stop pin strength. As Sal explained on the Spyderco forums a while back, the strength of a locking folder is a formula which includes all three aspects, and often a lock fail is actually a pivot pin fail.
 
The new Voyagers are very easy to close - they must have took it into account when people mentioned it about the earlier Tri-Ad models.

I just picked up a new version medium Voyager as well and the biggest problem is that you have to press the lock much farther in to unlock it. Although its not stiff it gets annoying have to press the lock completely in to disengage.
 
I just picked up a new version medium Voyager as well and the biggest problem is that you have to press the lock much farther in to unlock it. Although its not stiff it gets annoying have to press the lock completely in to disengage.


That's a feature to keep klutzes like me out of the ER.....(f'in Kudu with that freaky ring lock...six damned stitches....:p)
 
The Spartan is the only Tri-Ad lock folder that takes some actual effort to unlock, of the ones I own (4 currently, 5th on the way). The combination of a very strong locking lever spring and a very deep engagement makes for a tough unlocking. The new Voyager feels equally safe, but is a lot easier to unlock.
Since the advent of the Tri-Ad lock, my Police 3 has never felt the same. :D
 
I've been thinking that with how much engagement the lockbar on my Recon 1 has, the spring really doesn't need to be that strong.
 
I guess I don't really see the point of having such a beefy lock. If you're using your knife to cut something the way you're supposed to a lock isn't even necessary, which is why a lot of people, myself included, still use slipjoints.
 
I guess I don't really see the point of having such a beefy lock. If you're using your knife to cut something the way you're supposed to a lock isn't even necessary, which is why a lot of people, myself included, still use slipjoints.

Why jump in here to say that?
I don't go into a slip-joint thread and complain about the lack of a lock.
I have some slip-joints too, but I happen to like locking folders. And if one is to have a lock, why not have a reliable one?
Like Sal has said before, "All good, just different."
 
I often wonder about people's obsessions with lock strength, especially since that's generally the least stressed part of a knife. Not many people express the same concern with pivot pin strength or stop pin strength. As Sal explained on the Spyderco forums a while back, the strength of a locking folder is a formula which includes all three aspects, and often a lock fail is actually a pivot pin fail.

A lot of truth in that. Plus, I don't see people complaining about how their "flimsy" Spyderco lockbacks have failed. The Tri-ad is a good idea, but it's kind of a solution to a problem no one had.
 
Why jump in here to say that?
I don't go into a slip-joint thread and complain about the lack of a lock.
I have some slip-joints too, but I happen to like locking folders. And if one is to have a lock, why not have a reliable one?
Like Sal has said before, "All good, just different."

Why so sensitive? This is a forum and people have different viewpoints. This is in general knife discussion. I'm confused as to why the tri-ad design is necessary and that's what I wrote: if you use a knife the right way you don't even need a lock. Please don't get butthurt because I asked a question that I really would like to hear an answer to.
 
If you're using your knife to cut something the way you're supposed to a lock isn't even necessary, which is why a lot of people, myself included, still use slipjoints.

They are like seat belts in cars and amusement park rides, you don't need them till you really need them. It's an intelligent safety feature.
 
Please don't get butthurt because I asked a question that I really would like to hear an answer to.

My butt is fine, thanks for asking.;)

You don't want an "actual answer" though...your mind is already made up that locks are unnecessary.
Unless you formed this opinion yesterday, nothing anyone says will persuade you.
If they injured themself, then you'll say the were cutting incorrectly.
 
It's an intelligent safety feature.

Yep, because if your not intelligent you'll need one:p


I'm just kidding, and have/use all types of knives.
I carry a locking knife and a slipjoint at all times(not that I really need both).
I've used slipjoints for over 40 years and never cut myself with one, but have had stitches from a locking knife at least 5 times.
Of course I was cut while playing with the locking knives:o, and not using them.


I've only felt of two knives(CS Spartan's) with the tri-ad lock, and both were very stiff. They must have been early models since some here have said the newer ones are not so stiff. I have no need for such a strong lock, but from what i here its the strongest lock out there.

Thanks for the picks, I never really knew exactly how the tri-ad worked :thumbup:
 
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