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Kershaw Liner Lock failure

Bumblingtinkerer

Bumblingtinkerer

Joined
Jun 10, 2013
Messages
107
Hey guys I'm a little shaken up right now. I was using my Kershaw blur just now and I didn't need it but I wasn't going to put it back in my pocket so I stuck it into my porch rails. And the blade collapsed on me. Luckily I sustained no wound but gained a respect for the limits of these things. I've done this millions if times with this knife but this is the first failure I've had with this particular one. Anybody else have this happen to them? Thanks, Lucas
 
Were I you, I'd throw on a beefy glove and try to replicate that failure. It's possible that you disengaged the lock with use, and the stab merely finished the act.

If you can't replicate the results, you may not have a problem. I'm saying that as a guy that dislikes Kershaw :)
 
I'm a little unclear. You stabbed it into wood countless times and finally had the liner lock disengage on you?
 
This is why I don't stab things with folding knives. I'm not saying they will always fail, but you have to assume that in order to be completely safe. Respect that edge and it won't bite you.
 
The Blur is NOT a stabbing knife.

The tip of the knife is BELOW the centerline of the knife/pivot. That means when you stab it into something, the load is put on the lock bar and not the stop pin. If the tip of the blade is ABOVE the pivot, the force will transfer to stop pin and be a lot harder to defeat.
 
Here is a quick illustration:

kershaw_blur-razor-olive-black.jpg
 
Scurvy092 said:
The Blur is NOT a stabbing knife.

The tip of the knife is BELOW the centerline of the knife/pivot. That means when you stab it into something, the load is put on the lock bar and not the stop pin. If the tip of the blade is ABOVE the pivot, the force will transfer to stop pin and be a lot harder to defeat.
Click to expand...

Scurvy092 said:
Here is a quick illustration:

kershaw_blur-razor-olive-black.jpg
Click to expand...

Very good illustration and description.
 
humblerodent said:
This is why I don't stab things with folding knives. I'm not saying they will always fail, but you have to assume that in order to be completely safe. Respect that edge and it won't bite you.
Click to expand...

+1, good rule to live by.
 
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That's a good way to break the tip off of your knife as well.
Don't be stabby.
 
That is a quick illustration. I'm willing to bet the tip is actually much lower from the centerline than the picture looks. Would need to see how the lock face and stop pin line up to make it more accurate.
 
Good thing you didn't cut yourself. If it were my knife I would send it in under warranty for having a manufacturer defect.
The Blur is one of my favorite Kershaw knives but no way would I accept a lock failure just from stabbing a piece of wood.

ETA: I found an interesting video of a Blur field test. How odd that it passed the stabbing portion of the test with no failure.
The fun begins at apx. 2'30".

[youtube]Ll21DF_2zAw[/youtube]
 
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THanks guys, I know I messed up stabbing, stupid idea anyway. But I think y'all are right, my tip is much lower off of that line too, tips been reground after using it on a Work Sharp and having my tip break (that one wasn't my fault)
 
cncpro11 said:
Good thing you didn't cut yourself. If it were my knife I would send it in under warranty for having a manufacturer defect.
The Blur is one of my favorite Kershaw knives but no way would I accept a lock failure just from stabbing a piece of wood.

ETA: I found an interesting video of a Blur field test. How odd that it passed the stabbing portion of the test with no failure.
The fun begins at apx. 2'30".

[youtube]Ll21DF_2zAw[/youtube]
Click to expand...

Hey thanks for that, I'm pretty sure I know what happened after I did a little more testing to reproduce it. Only once more did it fail, and it was when my death grip on the knife pushed my finger fat into the way of the lock, disengaging it, letting the blade collapse. Scary, but I learned something so it's alright.
 
Come on, guys, sticking a knife in a piece of wood shouldn't cause the lock to fail (I'm assuming the OP did it gently and not with Hulk-like brutality). I've got an S30V Blur and love it, I think it's a fantastic knife. In your position, and if I were in the US, I'd send it in for the guys at Kershaw to take a look at it and see if everything's fine. Maybe the lockbar was a bit bent from previous hard use.
 
Franciscomv said:
Come on, guys, sticking a knife in a piece of wood shouldn't cause the lock to fail (I'm assuming the OP did it gently and not with Hulk-like brutality). I've got an S30V Blur and love it, I think it's a fantastic knife. In your position, and if I were in the US, I'd send it in for the guys at Kershaw to take a look at it and see if everything's fine. Maybe the lockbar was a bit bent from previous hard use.
Click to expand...

How about you read the post above yours. The OP admitted it was his mistake for accidentally disengaging the lock bar.

Doesn't change the fact that the Blur was not designed for stabbing.
 
The Blur is Kershaws bread and butter tactical knife. You better believe it was designed with stabbing as one of its intended roles. Personal opinions regarding knife use are just that, opinions. There is a chance yours is worn, see what Kershaw says.
 
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