Fastener including elastic legs for retaining the fastener in a

Details Fastener including elastic legs for retaining the fastener in a Fastener including elastic legs for retaining the fastener in a

1995-06-07

1996-11-12

Wilson, Neill R.

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

Headed fastener element

Having resilient securing structure on shank

411182, 411913, F16B 1900, F16B 3704

Patent

active

055733620

ABSTRACT:
A clip comprised of a head portion retained to a panel, and a leg portion inserted and retained in a mounting hole. The leg portion has a leg plate, elastic legs which project out from the longitudinally-extending transverse direction sides of the leg plate so as to form curved surfaces which face each other, and pawl portions protruded from the elastic legs. Curved outer surfaces of the pawl portions are disposed on a circular locus around central points on side surfaces of the leg plate, and have a greater curvature than the curvature of the mounting hole. As a result, when the leg portion is inserted into the mounting hole, the entire peripheral surfaces of the pawl portions do not contact the peripheral wall of the mounting hole, but only point-contact the peripheral wall of the mounting hole at points. Therefore, frictional force between the mounting hole and the leg portion is small, and insertion force is reduced. Although the clip requires little insertion force, a large retaining force for retaining the clip in the mounting hole is obtained.

REFERENCES:
patent: 3678797 (1972-07-01), Seckerson
patent: 3745612 (1973-07-01), Seckerson
patent: 3776092 (1973-12-01), Seckerson
patent: 4987656 (1991-01-01), Sato
patent: 5319839 (1994-06-01), Shimajiri

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