TOOL FOR TIGHTENING SECURITY NUT, TOOL FOR RELEASING SECURITY NUT, TOOL FOR BOTH TIGHTENING AND RELEASING SECURITY NUT, AND SECURITY NUT FOR EXCLUSIVE USE OF THESE TOOLS

摘要

This invention provides a tool for tightening the security nut, a tool for loosening the security nut, a tool for tightening/loosening the security nut, and the security nut associated with the aforementioned tools that allow easy tightening of the security nut, make it difficult to remove the security nut when using ordinary tools, and make it easy to remove the security nut if the dedicated tool is used. To accomplish the objectives stated above, the security-nut tightening tool "1A," which is used for screwing and tightening the conical, trapezoidal security nut "N" onto the bolt, is composed of the hollow section "2" that covers and seats the tapered outer surface "n" of the security nut "N," the rotation grip section "3" that protrudes above the hollow section "2," the head female-thread section "4" that is linked to the hollow space "21" along the axis of the rotation grip section "3" and screws onto the bolt "B," the inner tapered surface "52" that is fixed to the inner wall surface "22" and has the same slope angle as the tapered outer surface "n," and the elastic friction part "5."