Safety lock device for screw fasteners

Details Safety lock device for screw fasteners Safety lock device for screw fasteners

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 39/20 (2006.01) F16B 39/10 (2006.01)

Patent

CA 2185381

A safety lock device for screw fasteners, especially vehicle lug-nuts, for detecting when looseness occurs, and comprised of at least a pair of caps for attachment to spaced screw fasteners to rotate therewith, and a flexible lanyard extending between the caps and secured in directions of pull in tension against counter rotation of either cap, the lanyard being loose when the screw fasteners are tightened and being taut when either screw fastener is loose, and preventing unscrewing of said fasteners.

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