Frame lock failure?

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singularity35 said:
Nope, I wasn't directing a comment to what you believe a knife should be used for. I was directing a comment against your sentiment about spine whacks.

If you have read one or two threads discussing the pros and cons of spine whacks, then you know all our reasons.

Trying to start something here is just picking a fight and trying to make yourself feel better about yourself.
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Actually, you were. My "sentiment" towards spine whacks is that it's irrelevant to daily use. See how the two are connected?
 
Paka said:
Oh, so I'm not allowed to say I think spine whacks are ridiculous and irrelevant? When you start talking about spine whacks and how you think they're such a great test, other people reading might think that what you're saying is true. People who haven't formulated their opinion yet, they should see both sides of a coin and be the judge themselves. Clearly, you don't like it when people disagree with you.
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You were allowed to say it. You did say it. But you didn't just say it.

You tried to start something.

A lot of people have asked the same question and a lot of people have answered.

You can start a thread about why you think spine whacks are not relevant too.

I'm sure you've seen a lot of these threads and have seen the back and forth. Aren't you tired of the back and forth? Nothing new will be said about that on both sides.

I'm not questioning your opinion, what I am questioning is your motive.
 
singularity35 said:
Why? It is my preference that I use knives that pass a spine whack test. I don't have to explain my preferences to you.
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I thought spine whack tests were like the inside joke of bladeforums. I didn't realize that people that actually need their knives to pass them existed.

To each their own, but I believe it to be irrelevant to proper knife use and edc oriented tasks.
 
singularity35 said:
You were allowed to say it. You did say it. But you didn't just say it.

You tried to start something.

A lot of people have asked the same question and a lot of people have answered.

You can start a thread about why you think spine whacks are not relevant too.

I'm sure you've seen a lot of these threads and have seen the back and forth. Aren't you tired of the back and forth? Nothing new will be said about that on both sides.

I'm not questioning your opinion, what I am questioning is your motive.
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Are you kidding me?? I stated my opinion, and I'm ready to defend it. You say you're tired of back and forth but YOU started it. And my motive is to inform other people that what some people say and start threads about isn't true. And you've really furthered that point, by deciding to try to goad me on without any logic or reasoning behind your answers.

I would've welcomed you (and I did) to tell me why you specifically only use knives that pass spine whack tests. That would've been end of discussion, two different opinions with different reasons, reasonable or not. Instead this has degraded into bickering back and forth so I'm done here. Bye happy Easter.
 
Leftytwogunz said:
I thought spine whack tests were like the inside joke of bladeforums. I didn't realize that people that actually need their knives to pass them existed.

To each their own, but I believe it to be irrelevant to proper knife use and edc oriented tasks.
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I feel the same way. I mean, a knife shouldn't fail if you put a bit of pressure on it by trying to bend it, or give it a few light or medium taps on your palm, but I'm fairly certain any folding knife would fail if you hit the blade hard against a block of wood. Although, the former example is what a lot of people define as "spine whacking." I define it as the latter, but it's a bit of a gray area.
 
I understand why people do spinewhacks. They think that if the knife will pass this shock test then the lock is stable enough to not have to worry about any lesser trauma. The flaw in this thinking is that doing spine whacks can accelerate wear or even cause damage. The reason why the knife is failing can very well be because you are intentionally exposing the knife to trauma and stresses its not designed to be put through. A lock is a fail safe. It is a backup safety measure for accidental and incidentals it is not something to be leaned on and abused repetitively. And its not indicitive of real world conditions and uses. Now I realize some people choose to push the limitations of a objects design. But I think accepting responsibility for your actions is in order. I dont care if people want to use their knives for other purposes in which they werent designed. But holding against the product when it fails for doing what you know its not designed is of no fault but your own. It doesnt make it a bad knife or a defective knife. It meant you rolled the dice and lost to the house.
 
PURPLEDC said:
I understand why people do spinewhacks. They think that if the knife will pass this shock test then the lock is stable enough to not have to worry about any lesser trauma. The flaw in this thinking is that doing spine whacks can accelerate wear or even cause damage. The reason why the knife is failing can very well be because you are intentionally exposing the knife to trauma and stresses its not designed to be put through. A lock is a fail safe. It is a backup safety measure for accidental and incidentals it is not something to be leaned on and abused repetitively. And its not indicitive of real world conditions and uses. Now I realize some people choose to push the limitations of a objects design. But I think accepting responsibility for your actions is in order. I dont care if people want to use their knives for other purposes in which they werent designed. But holding against the product when it fails for doing what you know its not designed is of no fault but your own. It doesnt make it a bad knife or a defective knife. It meant you rolled the dice and lost to the house.
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:thumbup:
 
PURPLEDC said:
I understand why people do spinewhacks. They think that if the knife will pass this shock test then the lock is stable enough to not have to worry about any lesser trauma. The flaw in this thinking is that doing spine whacks can accelerate wear or even cause damage. The reason why the knife is failing can very well be because you are intentionally exposing the knife to trauma and stresses its not designed to be put through. A lock is a fail safe. It is a backup safety measure for accidental and incidentals it is not something to be leaned on and abused repetitively. And its not indicitive of real world conditions and uses. Now I realize some people choose to push the limitations of a objects design. But I think accepting responsibility for your actions is in order. I dont care if people want to use their knives for other purposes in which they werent designed. But holding against the product when it fails for doing what you know its not designed is of no fault but your own. It doesnt make it a bad knife or a defective knife. It meant you rolled the dice and lost to the house.
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Well said. I agree.
 
I wouldn't be the least bit surprised or worried if my knife closed after falling from a table onto a concrete floor.
How the heck is spine whacky even relevant to the topic?
 
Steve aka STR has a good analysis on lock, shock & slow load pressure on his sub forum. I'd suggest OP go and read it as part of his wanting to learn about frame locks.
 
Blues Bender said:
I think you guys should just start carrying fixed blades, then we can all kiss and makeup...
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Careful here next we'll be discussing that certain fixed blade knives can't be pounded into asphalt and take the full weight of someone bouncing on it......cause what if I need it to withstand that for my hard use.
 
ijustdontknow said:
Careful here next we'll be discussing that certain fixed blade knives can't be pounded into asphalt and take the full weight of someone bouncing on it......cause what if I need it to withstand that for my hard use.
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Um, who doesn't use their fixed blade as a jackhammer nowadays?! :D
 
Framelocks are not always inherently prone to failure under spine pressure or shock. It's mostly dependent on the geometry of the lock face, but also the lateral force of the lockbar. Not all framelocks are created equal, not by a long shot.

I've never tried this before, but I picked out a knife which had the earliest lockup in my collection. It's a Shirogorov 95/cf. It's literally resting at probably 3-4% lockup, and it also has an easily disengaged lock - Meaning there's not a lot of lateral force keeping it in place. I spine whacked it as hard as I could without it slipping out of my awkward grip. I also gripped the knife without pressing in the lockbar, and tried to slowly force the blade closed. I was unsuccessful at both.

I've dropped this knife multiple times while open, and I'm almost positive I remember it being part way closed one of the times. I didn't give much thought to it, because I know this is a safe, capable and extremely well built knife, that would never fail me under any circumstances that I would use a knife for.

I guess I'm trying to convey that although it closed when dropped, that doesn't mean it's defective or dangerous, IMO - But, it just depends on the knife and the user. You have to make up your own mind for your own knife.
 
Chris "Anagarika";14643605 said:
Steve aka STR has a good analysis on lock, shock & slow load pressure on his sub forum. I'd suggest OP go and read it as part of his wanting to learn about frame locks.
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Cool, thanks I'm going to check this out.
Wow this is the longest thread I've ever started lol
Who would have guessed!
I think through this firefight of posts I found my answers.
A... Be happy my blade itself didn't get damaged.
B..frame locks depend on the grip of the knife to work at max potential.
C.. When used in usual tasks a fine titanium frame lock like mine is great. If I'm pushing the limits of a folder a different lock choice might be better.

This is my small edc riding in my watch pocket. It's rock solid.. That's why I was so surprised it closed. I have no concerns about using it for daily jobs.
Man, locks are a hot button issue here!! Thanks everyone
 
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