Push nut and method for producing the same

DETAILED DESCRIPTION To attain the objects described above according to the present invention, there is provided a push nut comprising a push spring, a washer member, and one or more connectors for connecting the push spring to the washer member.
The push spring is formed in an annular shape having a central push hole and provided with radial blade pieces extending centripetally and slanted upwardly.
The washer member is formed in an annular shape having a central hole which is arranged coaxially with the central push hole of the push spring, by bending the connector into a substantially U-shape so as to place the push spring and washer member one on top of the other.
The washer member may be provided on its circumferential outer edge with one or more retaining tongues rising toward the push spring.
The washer member may be made flat or wavy.
The washer member may be divided into washer segments shaped in an arc conforming to the curvature of the push spring.
The arc-shaped washer segments constituting the washer member are connected to the push spring through the connectors at which the washer segments are folded.
The arc-shaped washer segment may be made flat or wavy.
Other and further objects of this invention will become obvious upon an understanding of the illustrative embodiments about to be described or will be indicated in the appended claims, and various advantages not referred to herein will be apparent to one skilled in the art upon employment of the invention in practice.