Push nut

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Fastener securing element – Resilient metallic

Patent

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Details

411520, 411521, F16B 2118

Patent

active

058334220

ABSTRACT:
A push nut formed of an annular rim and an elastic prong member having a fragile portion capable of being easily bent with a pushing force can be easily engaged with a rod-shaped article such as a shaft, consequently to firmly secure the rod-shaped article onto a frame of an electrical appliance or the like. The fragile portion of the prong member is formed by one or more slots, thin-walled parts, or grooves. The push nut engaged with the rod-shaped article can easily be disengaged by pressing down the prong member with a cylindrical tool to bend the prong member at the fragile portion, so that the rod-shaped article can be freed from the frame of the electrical appliance with little damage and can be reused effectively.

REFERENCES:
patent: 2275058 (1942-03-01), Draving
patent: 2321157 (1943-06-01), Rees
patent: 2986060 (1961-05-01), Lifka
patent: 4318498 (1982-03-01), Magers

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