Question about the stop pin design on the Emerson Alliance.

Skimo

Skimo

Joined
Mar 28, 2009
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While taking apart this knife today (gifted to me because of massive radial blade play, also the heart of this post.) I noticed that the stop pin is shaped like a cam. My google-fu must be weak tonight because I can't find a picture of what it looks like.

So my question, why?

I thought the stop pin was FUBAR, but now I'm guessing it's by design to take up for slack in manufacturing.

Thanks for any help or a nudge in the right direction.
 
I'm a bit surprised no one commented on this yet. The cammed stop pin isn't a new idea by any means and you're pretty much right on with why they exist, except that they're supposed to be making up for wear and tear rather than poor fit from the factory. Just rotate, tighten, and viola! no more blade play and an earlier lockup on liner/frame lock designs. In the one knife I have with this feature, I put blue locktite on the fastener.

slightly OT but while we're talking stop pins:
The standard EKI floating stop pin has the same goal, it rotates itself so that the hardened blade tang takes longer to wear/dent the softer stop pin (which I think are still hardened, but not as much), I'd guess that its a necessary feature given how hard wave openings are on the stop pin and frame.
 
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