Pull-out type expansion fastener

Details Pull-out type expansion fastener Pull-out type expansion fastener

1981-03-02

1983-09-13

Holko, Thomas J.

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

Having separate expander means

Bulged by axially contracting ends

F16B 1304

Patent

active

044038933

ABSTRACT:
A one-piece, plastic fastener for lockable engagement in a workpiece opening, including a stem having an outer end and also having an inner end from which a pair of integrally formed arms extend. The arms have two ends, one end forming an acute angle with the inner end of the stem, and the other or free end terminating at an integrally formed head portion. The head portions are swingable with their respective arms about the inner end of the stem to cooperatively engage each other and to form a complete head having an orifice embracing the stem. The stem and arms are insertable into the opening to locate the head against the outer side of the workpiece. Positive and outward withdrawal of the stem through the opening and orifice causes the arms to swing laterally and abut firmly against the inner side of the workpiece. Serration means between the head and stem maintain the fastener in lockable engagement with the panel by readily permitting outward movement of the stem while resisting its inward movement.

REFERENCES:
patent: 964226 (1910-07-01), Farrand
patent: 3350976 (1967-11-01), Topf
patent: 3481242 (1969-12-01), Topf
patent: 3651734 (1972-03-01), McSherry
patent: 3698279 (1972-10-01), Mallet
patent: 3959853 (1976-06-01), Talan
patent: 4122583 (1978-10-01), Griitner
patent: 4222304 (1980-09-01), Yoshida et al.
patent: 4222304 (1980-09-01), Yoshida et al.
patent: 4318650 (1982-03-01), Llauge

Affiliated with

Also associated with

Rating

Pull-out type expansion fastener does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pull-out type expansion fastener, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pull-out type expansion fastener will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1727402