Self-locking fastener, fastener system, and process

Details Self-locking fastener, fastener system, and process Self-locking fastener, fastener system, and process

F - Mech Eng,Light,Heat,Weapons

16

B

85/4, 85/66

F16B 39/30 (2006.01) F16B 31/02 (2006.01) F16B 39/00 (2006.01) F16B 39/02 (2006.01)

Patent

CA 1116443

ABSTRACT OF THE DISCLOSURE A collar threads onto a shear pin. When the collar engages a surface of a workpiece, resistance to further threading increases. When sufficient resistance to threading occurs, a setting driver upsets lobes of the collar and forces these lobes radially inward toward the axis of the collar. Material of the collar inside the lobes responds to deformation of the lobes and flows radially inward against the shear pin to lock the collar, shear pin and workpiece together. The driver then rotates freely and a joint has been made with a predetermined clamp-up load and its component parts locked together.

315100

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