By a News Reporter-Staff News Editor at Politics & Government Week — From Washington, D.C., VerticalNews journalists report that a patent application by the inventor Hirano, Yoichi (Hiroshima-shi, JP), filed on September 12, 2012, was made available online on November 27, 2014.
The patent’s assignee is Nifco Inc.
News editors obtained the following quote from the background information supplied by the inventors: “Conventionally, as for a fastener fastening the fastened member to the fastening member, there is, for example, Patent Document 1. In the conventional technology, a guide portion of a pin is inclined relative to a shaft line of the pin in two steps, and a partition on an end side of the guide portion becomes a first guide portion including a guide face inclined at 30 to 65 degrees to the shaft line of the pin, and a partition on a base end side of the guide portion becomes a second guide portion including a guide face inclined at 5 to 25 degrees to the shaft line of the pin. Then, in a first half of an insertion wherein the pin is pressed into a grommet, a guided portion is guided by the guide face of the first guide portion so as to expand a leg portion. Also, in a second half of the insertion, the guided portion is guided by the guide face of the second guide portion so as to expand the leg portion.”(…)
via NIFCO : Researchers Submit Patent Application, “Fastener”, for Approval | 4-Traders.