Press-type fastener for threaded pins

Claim 1

A fastener made of a resilient material to be pressed onto a threaded pin or the like comprising a holding part for holding an object and a fastening part integrally connected to the holding part for securing the fastener to the pin, the fastening part comprising a plurality of essentially free standing, arcuate-shaped clamping walls that are integral at one end with and extend downwardly from the holding part of the fastener and are free at their opposite end for tightly gripping the periphery of the pin, each clamping wall having a smooth inner surface and having two lontitudinal edges each being parallel to the longitudinal axis of the fastener, said clamping walls being spaced apart and uniformly distributed in a circle around the axis to form an opening for insertion of the pin from the side of the fastener remote from the holding part such that the diameter of the inner surface of the clamping walls is less than the outer diameter of the pin, a plurality of ribs each integral with the holding part and a longitudinal edge of a clamping wall and projecting radially outward from said longitudinal edge, each of said clamping walls being supported by two of said ribs and the adjacent ribs of two adjoining clamping walls being parallel to and spaced from each other and connected to each other radially outward from said longitudinal edges by an outer wall coaxial with said clamping walls and with the two ribs of each clamping wall being radially spaced apart from each other where they join the longitudinal edges of the that clamping wall to provide an arcuate-shaped opening behind each clamping wall and extending the full length of said clamping wall so that the full length of the clamping wall including its end at the pin-insertion opening is attached only to its integral ribs, whereby each clamping wall and its integral ribs form a resilient unit that bends outwardly as the fastener is pressed onto the pin but that tightly grips the threads on the pin to hold the fastener in place.