Will we ever see an axis type lock on a spyderco?

ac1d0v3r1d3 said:
I think that the TriAd locks will dominate unless cold steel keeps the design for itself. I've never cared for the axis locks, and the TI frame locks just don't seem all that much stronger then other types of locks. Has anyone seen testing on the TI RIL locks? The only testing I have seen is ankerson's test. IIRC the ZT and TriAd knives were fine, while the spyderco ball lock and the BM axis lock knives broke.
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the axis lock made it through the test, it wasnt till he stood on the knife that it broke. Triad lock and ball bearing lock are not as smooth as the axis lock.

I like spyderco knives alot hopefully they come out with more frame locks, and im excited about the bolt action lock on the new sage.
 
RevDevil said:
The patent will expire on the Tri-Ad lock eventually. When it does it will replace most conventional lock back designs. It provides a new level of safety and security for lockbacks in general, a natural evolution of that style. Can you imagine the Dragonfly, Delica, Stretch, Endura, etc with that style of lock? Those models would automatically be propelled to a whole new level.
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While it seems to me that the Tri-Ad lock does appear to be very robust, I'm not so sure Spyderco will seek to use it on it's lockback models. It appears that the Tri-Ad lock may require more material to operate. That may raise the cost of production and the overall side profile for Delicas/Enduras.

I think Spyderco's lockback design is a proven design and operates just fine. Again, I'm no expert. I trust that Sal and Co. will honor the C.Q.I. mantra and re-evaluate their lockback knives if the Tri-Ad lock ever becomes available for them to use.
 
Agreed D1omedes. I was suggesting that when the patent runs out, anyone can modify their lockback design by adding a stop pin. It would not necessarily need to be called a Triad, I'm sure other companies can come up with their own nomenclature. The results that Demko achieved by adding a stop pin was evolution at its finest in general (take a proven lock design and make it more reliable, secure, and fail proof). It will be interesting to see what the future holds.
 
Damn_Animal said:
Triad lock and ball bearing lock are not as smooth as the axis lock.
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Really? What would be the engineering basis for that assertion? The axis and ball bearing locks work in very similar fashion by simply placing a steel object physically in the way of the blade closing. Both are driven into position with springs. At worse, the axis and ball bearing locks would be equally smooth in operation. Theoretically, the ball bearing should be smoother if properly implemented because the friction of the ball bearing moving into position should be less than moving a cylinder forward (sphere has a much smaller bearing area than the cylinder in the channel). Less friction = potentially smoother operation.
 
D1omedes said:
While it seems to me that the Tri-Ad lock does appear to be very robust, I'm not so sure Spyderco will seek to use it on it's lockback models. It appears that the Tri-Ad lock may require more material to operate. That may raise the cost of production and the overall side profile for Delicas/Enduras.

I think Spyderco's lockback design is a proven design and operates just fine. Again, I'm no expert. I trust that Sal and Co. will honor the C.Q.I. mantra and re-evaluate their lockback knives if the Tri-Ad lock ever becomes available for them to use.
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I agree that Spyderco's lockback design is proven effective. All but one of my Spydercos is a lockback (Leaf Storm is a frame lock). I've carried all lockback folding knives for decades, ever since high school, and NEVER had one fail - even the cheap ones of my youth. Like any tool, keep it clean and lubed and it will serve well for a long time. I'm not saying that the Tri-Ad isn't a nice design, I think that it is, just that it seems to be a solution w/o a corresponding problem. I'm sure that Spyderco has clever designs in their safe that we have yet to see on a production knife.
 
Damn_Animal said:
Triad lock and ball bearing lock are not as smooth as the axis lock.
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Really? My experience has shown me otherwise. I've found the axis lock to be highly overrated as a 'smooth' locking mechanism... in my experience, the CBBL completely outclasses the axis lock in terms of a) smoothness of operation, and b) remaining smooth and being more resistant to fouling in slightly dirty conditions.
 
RevDevil said:
Agreed D1omedes. I was suggesting that when the patent runs out, anyone can modify their lockback design by adding a stop pin. It would not necessarily need to be called a Triad, I'm sure other companies can come up with their own nomenclature. The results that Demko achieved by adding a stop pin was evolution at its finest in general (take a proven lock design and make it more reliable, secure, and fail proof). It will be interesting to see what the future holds.
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It isn;t just adding a stop pin - there are other patented lock-back variations with stop pins.
 
Tanker Bob said:
Really? What would be the engineering basis for that assertion? The axis and ball bearing locks work in very similar fashion by simply placing a steel object physically in the way of the blade closing. Both are driven into position with springs. At worse, the axis and ball bearing locks would be equally smooth in operation. Theoretically, the ball bearing should be smoother if properly implemented because the friction of the ball bearing moving into position should be less than moving a cylinder forward (sphere has a much smaller bearing area than the cylinder in the channel). Less friction = potentially smoother operation.
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Congrats! You just discovered the difference between theoretical and imperical.

I my experience, the various iterations of the ball lock are not as smooth as an average Axis-lock. The Tri-Ad lock has so much friction that smoothness is usually not noticed, but both my Black Rhino knives are smooth movers.

And there is more to blade movement smoothness of operation than only the lock.
 
It is counter-intuitive (at least to me), but my experience with quite a few of both is the same as yours.

orthogonal1 said:
Congrats! You just discovered the difference between theoretical and imperical.

I my experience, the various iterations of the ball lock are not as smooth as an average Axis-lock. The Tri-Ad lock has so much friction that smoothness is usually not noticed, but both my Black Rhino knives are smooth movers.

And there is more to blade movement smoothness of operation than only the lock.
Click to expand...
 
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