Securing insert of a locknut

Details Securing insert of a locknut Securing insert of a locknut

1997-02-21

1998-05-19

Saether, Flemming

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having structure to restrict rotation of threaded, mating...

Comprising a thread lock

411947, F16B 3934

Patent

active

057527938

ABSTRACT:
A locknut which is durable and adapted to be used repeatedly is disclosed. The locknut has a body with a collar integrally extending from one end thereof for receiving a check washer. The check washer defines a polygonal hole therein. A periphery defining the polygonal hole is composed of a plurality of long edges and short beveled edges each arranged between two adjacent long edges. A length of each long edge is slightly smaller than an internal diameter of the body. By this arrangement, the extrusive portion of the long edges resulted from the thread of a bolt can be dispersed toward the short beveled edges to avoid a fracture of the check washer, thereby to maintain an effective elastic comeback of the check washer.

REFERENCES:
patent: 2727551 (1955-12-01), Rees
patent: 3221790 (1965-12-01), Poupitch
patent: 3353580 (1967-11-01), Benjamin
patent: 3437118 (1969-04-01), Coyle
patent: 4165194 (1979-08-01), Flower

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