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Pictures ..(internal views).. of dis-assembled locking mechanisms.

A visual aid to the understanding of their internal workings.

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Here's a button lock I picked up recently that certainly has the locking system in place.

Note: position of sear pin in a "locked" position .. the blade is fully closed.

Note: position of sear pin in "unlocked" position .. the blade is not quite fully open.

Exploded views .. of sorts.

Note: the slot in the sear pin .. the spring seats in it.

Dale that is interesting how it all comes apart like that

Thanks, Jan.

 

I have an interest in unique locking mechanisms. I also believe viewing the internal components & their interaction facilitates an easier understanding of the overall system's  functioning.

 

However, not everyone cares to dis-assemble a knife just for that insight, or needs too .. while I rather enjoy it !!!  Sooooo, it's sharing time :)

 

Jan Carter said:

Dale that is interesting how it all comes apart like that

This is a GANZO .. Model G707.  Chinese manufacture.

I dis-assembled one for an internal view.I'm not sure how the blade was blanked out .. wire EDM / water jet / I don't know .. whatever method used was not interrupted between the pivot hole & the spring hole .. note the small slot connecting the two. 

This specific design approach results in a weak area @ the base of the blade. There is little material left between where the stop pin contacts the blade in the open position .. and the area removed for the locking pin in the open position. I suspect lateral forces could cause a failure at this point .. i.e. snap the blade off if ever pried.

Looks sweet though .. till one see's that.  For < $20 .. I'll live with it !!!

This is not a unique lock but it does have an additional feature to the common back lock.  Spyderco started using this modification on the Chaparral CF. I think that was the first knife they used it on. They use it also on the Sage4.

Notice the post on the blade tang. Also notice the blade tang makes contact with the lock bar. No stop pin as is in other modified back locks.

Here's the knife with the liner in place. The post travels in a groove in the liner (on both sides). When the knife is fully open the post is against the end of the groove preventing it from applying additional force on the lock bar. I think the idea is to reduce or stop vertical play that is common in some lock back knives.

The stop post and liner groove also create the stop point when the blade is closed.

This modification is nice but I also like a stop pin between the tang and lock bar when the blade is open. Cold Steel's tri-ad locking mechanism has the stop pin and they have a very solid locking knife IMO.

Thanks for the post, Jack .. I had not seen the working insides of one of these .. I.e. the stop pin rotating in the 180 degree circular slot.

I have seen a similar approach used in buttonlocks .. where an enlarged circular hole is machined @ either end of the 180 degree slot .. to allow the sear pin of the buttonlock mechanism to seat itself @ either end of the slot .. locking the blade in either the open or closed position. I had not seen it implemented in this application. 

Thanks again .. Dale.

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