Lock failure test

Lock failure test

This is a discussion on Lock failure test within the Defensive Knives & Other Weapons forums, part of the Defensive Carry Discussions category; Many of us know that cheap folders (specifically the lock) mean ineffective/danger in respects to the operator. I purchased several cheap folders and did a ...

Results 1 to 6 of 6

Thread: Lock failure test

  1. #1
    Member Array KevinInstructor's Avatar
    Join Date
    Nov 2005
    Location
    Oregon USA
    Posts
    219

    Lock failure test

    Many of us know that cheap folders (specifically the lock) mean ineffective/danger in respects to the operator. I purchased several cheap folders and did a unscientific test, open each folder, hold it in a manner where I could not be cut and hammered each one on a table. Every single one of these cheap “no name” folder failed to stay open. Beings I have no equipment to measure the force it took to close the folders with the lock in it’s proper position I can not document the test and knowing full well that beyond the shadow of a doubt that these knives are simple accidents waiting to happen.

    To be fair I took several name brand folders and did the exact same test, not only did they stay open but upon closing them there was no stiffness from the lock being forcefully hammered on as some of the cheap knives exhibited.

    So now I wonder if anyone here knows of any actual documented test which might be found for public view. I heard but not sure that at least one major manufacturer of tactical knives may have done this type of test but not sure.
    Stay Safe,
    Kevin

    CSSDSD Instructor
    ASP Instructor
    ACCJT Certified LEO DT Instructor
    NRA Instructor


  2. #2
    New Member Array bruto's Avatar
    Join Date
    Jul 2007
    Location
    Vermont
    Posts
    14
    Just thinking out loud, so to speak, but what about setting up a platform, basically just two supports which would be bridged by the open knife with its blade edge upward, onto which a consistent weight could be dropped from a consistent height, or perhaps a weighted bar swung down. It ought not to be too hard to calculate the force, and you could then test a bunch of knives with the same force. Of course that's easy to say since I'm not buying the knives!

  3. #3
    VIP Member Array raevan's Avatar
    Join Date
    Oct 2005
    Location
    washington
    Posts
    4,849
    Cold Steel Has video that shows various test on their knives.

  4. #4
    Moderator
    Array Bark'n's Avatar
    Join Date
    Apr 2007
    Location
    West Central Missouri
    Posts
    9,917
    I believe Benchmade has some ft.lb. ratings on some of their lock mechanisms in their literature.
    -Bark'n
    Semper Fi


    "The gun is the great equalizer... For it is the gun, that allows the meek to repel the monsters; Whom are bigger, stronger and without conscience, prey on those who without one, would surely perish."

  5. #5
    Member Array KevinInstructor's Avatar
    Join Date
    Nov 2005
    Location
    Oregon USA
    Posts
    219
    Thanks for the information on Cold Steel, Benchmade and home testing. I am going to research more and hopefully in the end I can fully document a "home test" which I want to show how well made knives stand over cheap knives.
    Stay Safe,
    Kevin

    CSSDSD Instructor
    ASP Instructor
    ACCJT Certified LEO DT Instructor
    NRA Instructor

  6. #6
    Sponsor
    Array AzQkr's Avatar
    Join Date
    Apr 2006
    Location
    In the Superstitions
    Posts
    4,238
    http://www.bladeforums.com/forums/fo...s=&forumid=669

    Do a search on the subject, several have scientifically tested the force generated and force needed to fail.

    Brownie
    The mind is the limiting factor

    Quick Kill Rifle and Pistol Instructor

Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Caliber failure, or user failure?
    By glockman10mm in forum Defensive Ammunition & Ballistics
    Replies: 13
    Last Post: October 21st, 2010, 10:33 PM
  2. 1911 muck test VS. beretta 92 muck test videos
    By Don Glock in forum General Firearm Discussion
    Replies: 24
    Last Post: July 9th, 2010, 07:03 PM
  3. Colt commander: Failure to lock
    By Therealkoop in forum General Firearm Discussion
    Replies: 21
    Last Post: June 12th, 2010, 02:18 AM
  4. LCP Failure to Fire
    By Hydrashok Glock in forum Defensive Carry Guns
    Replies: 20
    Last Post: January 17th, 2009, 03:28 PM
  5. S&W Internal Lock Failure
    By semperfi.45 in forum Defensive Carry Guns
    Replies: 50
    Last Post: September 4th, 2007, 10:18 AM

Search tags for this page

knife lock failure
,
knives with known lock falure
,
lock failure knives
,

ruger internal lock failure

,
taurus lock failure
Click on a term to search for related topics.