1977-08-22
1980-01-01
Mitchell, James C.
85 83, F16B 1304
Patent
active
041810619
ABSTRACT:
An integrally molded plastic fastening element comprises a head portion, a longitudinally extending body portion having a pair of longitudinally extending pillar-like parts, and a pair of substantially rigid locking arms pivotally connected to each other at their adjacent ends. The rigid arms are pivotally connected to the body portion at the ends of respective pillar-like parts at positions radially adjacent the cross section of the body so that the rigid arms bear the bulk of the load applied to the fastener. The advantages of this structure include enhanced load bearing capability and ease in fabrication. In a preferred embodiment, the body is provided with a central passageway, and the pillar-like parts are curved radially inwardly in order to spring bias the walls of the passageway against an elongated retaining member inserted therein and to spring bias the arms in an over-center locking position.
REFERENCES:
patent: 3213746 (1965-10-01), Dwyer
patent: 3342098 (1967-09-01), Schuplin
patent: 3350976 (1967-11-01), Topf
patent: 3651734 (1972-03-01), McSherry
patent: 4022100 (1977-05-01), Johnson
Mechanical Plastics Corporation
Mitchell James C.
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