Insert nut, fastening unit including the insert nut, and process cartridge using the fastening unit

An insert nut, which is configured to be inserted into a substrate made of a resin, the insert nut including: an internal thread portion into which a screw is to be fastened; a recess-and-protrusion-shaped portion formed on an outer surface of the insert nut, the recess-and-protrusion-shaped portion...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Yamaguchi, Yoshimasu
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An insert nut, which is configured to be inserted into a substrate made of a resin, the insert nut including: an internal thread portion into which a screw is to be fastened; a recess-and-protrusion-shaped portion formed on an outer surface of the insert nut, the recess-and-protrusion-shaped portion including a plurality of ridges and a plurality of roots formed alternately in a circumferential direction; and a flange portion formed on one end side in a screw axial direction of the internal thread portion, wherein a nominal diameter of the screw to be fastened into the insert nut is 3 mm or more, and an outer diameter of the flange portion is 2.4 times or more and 4 times or less as large as the nominal diameter of the screw to be fastened into the insert nut.