公开(公告)号：US20150147134A1

公开(公告)日：2015-05-28

申请号：US14553476

申请日：2014-11-25

Applicant: ALCOA INC.

Inventor： Donald C. Busby ,  Richard Franklin ,  James L. Wollard

IPC: F16B39/30 ,  F16B37/00

CPC classification number: F16B39/30 ,  F16B39/34

Abstract: A fastener including a bolt having an elongated shank having a first end, a second end opposite the first end, and a threaded portion having an external bolt thread, the bolt thread including a bolt pitch. The fastener includes a nut having a first end, a second end opposite the first end of the nut, and an internal nut thread extending between the first and second ends of the nut and adapted to engage threadedly the bolt thread of the bolt. The nut thread includes a nut pitch and a hardness that changes gradationally between the first and second ends of the nut. The bolt pitch of the bolt thread of the bolt is mismatched with the nut pitch of the nut thread of the nut.

Abstract translation: 一种紧固件，包括具有细长柄的螺栓，所述螺栓具有第一端，与第一端相对的第二端和具有外螺栓螺纹的螺纹部分，所述螺栓螺纹包括螺栓间距。 紧固件包括螺母，其具有第一端，与螺母的第一端相对的第二端，以及在螺母的第一和第二端之间延伸并且适于螺纹地接合螺栓的螺栓螺纹的内螺母螺母。 螺母螺母包括螺母间距和在螺母的第一和第二端之间逐级变化的硬度。 螺栓的螺栓螺栓的螺栓螺距与螺母螺母螺母的螺母螺距不匹配。