Fastening element made of plastic

Details Fastening element made of plastic Fastening element made of plastic

1996-01-25

1997-08-19

Lindsey, Rodney M.

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

Headed fastener element

Having resilient securing structure on shank

411508, 411509, 411908, F16B 1302

Patent

active

056581106

ABSTRACT:
A plastic fastening element includes an insert portion 2 attachable in an aperture of a support. The insert portion has elastic wings 4 joined about the circumference of a rigid core 9 to extend in an axial direction relative to the support aperture. The wings 4 are designed in the shape of a triangle with the first triangle side 7 connected to core 9 of the insert piece 2, and the opposite outer triangle corner 8 defining the outer limit of a second and third triangle side 5 and 6 each of which extend from the triangle corner 8 to the core 9 of the insert piece 2. The second triangle side of each wing 4 ascends from the lower end of the core in spirally-wound form up to the respective triangle corner 8 and the third triangle side 6 of each wing 4 ascends in spirally-wound form from the respective triangle corner 8 to the core 9 of the insert portion 2.

REFERENCES:
patent: 3177540 (1965-04-01), Hall et al.
patent: 4489465 (1984-12-01), Lemkin
patent: 4668145 (1987-05-01), Hirohata
patent: 4739543 (1988-04-01), Harris, Jr.
patent: 4938645 (1990-07-01), Wollar
patent: 5017151 (1991-05-01), Peterson
patent: 5037326 (1991-08-01), Reedy
patent: 5046223 (1991-09-01), Kraus
patent: 5454479 (1995-10-01), Kraus

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