folder design question

[harrydog]

I've noticed that on all the liner lock type knives I've seen, the locking mechanism seems like it could be improved upon. I'll use the Sebenza as an example. When the knife is in the locked open position, the locking slab only contacts about 1/2 the width of the blade (about 1/16"). If the slab would come over further and almost make contact with the oposite side handle slab, it would cover 100% of the blade and make for an even stronger lock up.
Keep in mind I'm obviously no expert and I assume there is a good reason for this but I can't figure out what it might be. If any of you folks can enlighten me i'd be much obliged.
Thanks.

Bill

 

[leroys_45]

Liner locks and frame locks are this way to account for wear. That is also why the tang of the blade where the lock engages is at an angle. Anytime you have two pieces of metal in direct contact like this, wear WILL occur. I believe this is more true with titanium locks as titanium is a good bit softer than the blade steel it contacts.

If companies would start the liner at the opposite scale, the next stage would be up and down movement of the blade, which indicates time for repair. As far as strength, that is rarely the problem. The problem is lock reliability more often than not.