Lock strength

W

will22

Joined
May 13, 2002
Messages
472
Just out of curiosity does anyone know of any tests that show failure on the Sebbies frame lock. Like how other knife companies say our lock can hold 100 lbs before failure.

I just keep looking at my Sebbie and can't see it failing. Not with that huge slab of heat treated TI sitting there. I would also like to see what the difference in failure between when the knife is gripped and when the framelock has no reinforcement.

I would think that the Sebbie would bury other folders in this kind of test.
 
A Ti framelock is prone to fail where the cut out allows it to bend, rather than elsewhere. Its the point of weakness, the weak link.

The Sebi is no exception.

Amazingly a steel liner or lockback can be easily built stronger.

The Sebenza is an amazing knife and I own several, however while it is quite strong enough, Chris Reeve has oft said he will not make a larger bladed Sebi with the current set up. I think this is the main reason, lock strength and increasing blade length and the effects that these two have on each other is significant as the blade gets longer.
 
but even the cut out is thicker than alot of liner locks. You would think it would be hard to break it using downward presure like that of the blade closing.
 
I've never checked it beyond my weight... however, that way I'm sure this lock can handle easily 100lbs and in fact I've checked (unscientifically of course ;) ) it can handle me so something like 180lbs. Of course "lock strenght" is as undefined parameter as it can only be. Too many variables. But be sure about one thing... Sebenza is basically a fixed blade that folds :cool:
 
In tests the Sebi held at least 400 lbs before failing. Plenty strong enough! Don't ask who did the tests or where, its a secret! ;)
 
I agree! I mean it held more than 400lbs! Not many of us, even me weigh that much! Now that is strong... :D
 
The General said:
I agree! I mean it held more than 400lbs! Not many of us, even me weigh that much! Now that is strong... :D
Click to expand...

Hmmm, well, I do, but it goes well with my 6'8 body, and size 17EEEEE feet. :) The moral being, I shouldnt try to hang from a cliff face from my Sebenza... :)
 
The General said:
In tests the Sebi held at least 400 lbs before failing. Plenty strong enough! Don't ask who did the tests or where, its a secret! ;)
Click to expand...

Sounds like a British Blades, hush hush, operation! MI5..MI6..SIS.. :eek:
 
What type of application would warrant the kind of reverse downward pressure against the back of the blade effecting the lock?

I know people like to know strengths of locks. But the main function of the lock is only to prevent premature closer in the event of a slip. Most older folders were slipjoints. I can't imagine anyone putting enough pressure during a slip that would fail even a linerlock not to mention a frame lock. You would probably snap the blade before lock failure. As long as you have a properly functioning knife to start with(maybe the spinal wack test?). :rolleyes:
 
The problem with the Frame-lock (and liner-locks as well) is the possibility of failure while twisting and torqueing.

Lefties often have problems with "right-handed" Frame-locks and liner-locks because the way they grip the handle tends to disengage the lock itself.

Not to mention that as the knife wears the lock-geometry will change.

allen.
 
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