What exactly is a compression lock?

This is oversimplification but think of an upside down liner lock that wedges between the stop pin and the tang.
 
yes shootist that is the best simple way to explain - a good system imho, spydie should make more mods w/this lock - i cant imagine it failing when in good working order


sifu
 
Looks pretty complete and simple in that exploded view.
An inverted linerlock with a wedge to make it more secure the tighter you grip it.
 
Another way to explain it:

See the part jutting out of the liner called the "compression insert"? Well, that part is wedged between the compression surface and the anvil pin. If you imagine a regular liner lock being subject to the spine whack test, the liner can just slip off the blade tang. With a compression lock, when there is spine pressure, the compression insert gets held firmer and firmer between the anvil pin and compression surface. That small change makes all the difference between a lock format that is extraordinarily difficult to consistently make reliable (liner lock), and one which -- at least so far -- appears to be consistently reliable, the compression lock.

Joe
 
Has anyone mentioned it was designed by Sifu Bram Frank?

Also - you may want to think of it as:

“THE STRONGEST LOCK” ever on any folder…

The Vesuvius, however is not the best example of this.

Check out the Gunting - you'll understand...
 
Originally posted by Blilious
Has anyone mentioned it was designed by Sifu Bram Frank?
Click to expand...

Are you sure? I thought it was designed by Spyderco and that just happened to be the first knife it was released on.
 
The compression lock was designed in house at Spyderco. We needed a lock that could withstand the requirement for Bram's Gunting. The Gunting was going to be our first MBC model. There were strength and reliability requirements for the design. The Gunting is also the best test the lock could get. Bram beats one up continuously.

The compression insert could also be on the end of a button or part of a rotating wheel. It would still serve the function of filling the space between the anvil pin and the tang.

hope that helps.

sal
 
Sal's correct..The Compression Lock is a Spyderco design team design..
I just get to beat on it..
My apologies to any or all that somehow thought I designed the compression lock because I talk of the Gunting so much..
The rest of the Gunting is mine..ROFL..
Of course without the Compression lock alot of how I abuse it wouldn't work..
Thank you Sal n design team...

Bram
 
Here are a couple of mediocre pics of the Gunting Compression Lock, open and closed.

fe066a3d.jpg.orig.jpg

fe066a3c.jpg
 
Originally posted by shootist16
This is oversimplification but think of an upside down liner lock that wedges between the stop pin and the tang.
Click to expand...

The dealer I bought my Vesuvius from jokingly called the lock "the reverse liner lock". It kinda stuck in my head and that's what I end up calling it half the time. A fun thing I found with my Vesuvius, if I were to hold the lock open I can flick the blade open and closed like on an Axis lock knife. It's not as easy or smooth but it can be done.

On a sidenote, I managed to get one of the serial numbered FRN ones with the polished silver spider logo. Unfortunately I thought the "162V" marking was a model number, not a serial number, and I put a ton of use on the knife so it's not exactly a collector's item anymore. Oops....
 
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