rolling lock

Feb 11, 1999
Could someone fill me in on how this works? Or at least point me in the right direction to find out? Jsut curious, as it sounds like the best thing since sliced bread (although that can't be true. I've got that in the Axis lock
). Just kidding.

the ROLLING LOCK is Bob Taylors gift to the knife world..In a folding knife lock strength is paramount, all one has to lose is ones fingers..The rollong lock UNLIKE other locks doesn't use friction to hold it in place. In a lock back a strip of steel slips into a spring held step..this step can wear or pop. In a liner the liner itself pops over and by friction is held in place..Since it comes out on an angle, the angle of the seat must match the angle of the liner and the length MUST be correct. Both are static locks. They are not mmade to take KINETIC energy. The rolling lock is based in concept like the magazine of an AK-47..its made to take kinetic force. The blade has a cam shaped notch in it. whhen the blade opens the cam slides inside the notch. The worst you can do is JAM the lock.
The lock will not fail. You can ruin the knife so it won't close but you can't break the lock. When the cam slides/ rolls into the notch its now the shear strength of steel not the friction of a holding a plate. To close the knife one must purposely Unengage the cam rotatingit out of the way, to close thre knife..If you like real time slice n dice or really use your knife, well you want a rolling lock.
Strength and reliability are two different things. Both locks can handle more force than your hand, wrist, arm.

Adequate strength is important but reliability is the priority.

I think there was a thread reporting a rolling lock failure from something other than sheer force. Don't remember what it was.

From an engineering point of view this lock is more sophisticated and complicated than the Axis.

Remember kiss.

The idea that it might freeze in the open position never occurred to me before (unacceptable). But the possibility of it freezing in the closed position has (also unacceptable). But this is only a suspicion on my part. Time and more use will tell the story on these two new promising locks.

Ron Knight

Yeah I'm crazy, but what do you want me to do about it

[This message has been edited by RKnight (edited 18 March 1999).]
Heh, I love hearing people predicting "this lock will not fail", then seeing the failure reports. Didn't anyone see Titanic?
Anyway, aside from Steve's report, the early Pioneers sometimes failed at the spring, which was definitely the weak spot. That problem appears to be completely fixed now, I haven't heard of a spring failure since REKAT did some redesign (or got better parts suppliers, or whatever). I love the Rolling Lock, but would caution my fellow knife nuts about predicting the lock won't ever fail. The Rolling Lock has been out, what, a little over a year? The Axis a few months. These locks are babies, it's a little too early to proclaim them unfailable. And keep in mind this is coming from a guy who hopes these new locks are proven solid and take over someday!

I have one Pioneer that will release when whacked sharply with a stick on the spine about every half dozen tries. I have two more that I cant get to release at all. All in all I consider the Axis lock the stronger design, but both are vast improvements over the liner lock. My faith in the Rolling lock is great. I have a Pat Crawford Carnivor on order!

How it works:

The lock is a pin with a notch filed into it, making its cross-section semi-circular. Rotating the lock pin via the release tab allows the blade tang to rotate in the notch of the lock pin. At the point where the blade hits the stop pin in the open position, there is a notch in the blade tang that allows the lock pin to rotate so that it blocks the movement of the blade tang. It is extremely strong, and pretty reliable.


[This message has been edited by Steve Harvey (edited 18 March 1999).]
The new spring in the Rolling lock is a compression spring rather than a coil type..The new spring works in a compression motion rather than a streching or a bending so it is going to last a long time. The action is with the strength of the spring not against the steel its made of..It is many times stonger than the old style which sometimes due to bad steel springs, not the locking mechanism itself, failed. Out of a length of spring steel not all of it used to be tempered the same..Its very small. The new spring has none of that weakness.
As for its not good "breaking a lock" and it stays open..well I'd rather the damn thing under pressure torque itself out of alignment and REFUSE to close ( like on my fingers) than have it "fail" and close, cutting my fingers off... Hey ..personal choice... The lock is MUCH stronger than anything out there. Perfect? no not yet..but REKAT is working on it.A few months old? the concept is very acceptable..keeps magazines in place under kinetic force..Plus its been under development for a few years..I saw it a couple of years ago when Bob Taylor had ONLY the working prototype of a pocket Hobbit at SOF.It will get better as we speak..