To provide a fastener which prevents a bolt and a nut of a tightening fastener from getting loose, even when the material of a structural member that is a member to be tightened comprises a material different from those of the bolt and the nut, and even when a temperature environment where the structural member is used, varies with a relatively great extent.
This fastener is used for tightening two or more of the members to be tightened, and is constituted of the bolt and the nut, a thermal expansion coefficient of the fastener is different from that of a tightening member, a face contacting with the member to be tightened of a head part of the bolt is formed into a conical face, and a face contacting with the member to be tightened of the nut is formed into a conical face, in the fastener.
| JP2006348972 | SCREW FASTENING STRUCTURE |
| WO/2019/006302 | THREADED BLIND FASTENER AND SPACER ASSEMBLY AND METHODS FOR THE ASSEMBLY AND USE THEREOF |
| JP4343402 | Board mounting spacer |
NAKAGAWA TAKAO
| JP2006170263A | 2006-06-29 | |||
| JPH06124766A | 1994-05-06 | |||
| JPH07248015A | 1995-09-26 | |||
| JP2005211166A | 2005-08-11 | |||
| JPH02173225A | 1990-07-04 | |||
| JP2004359527A | 2004-12-24 | |||
| JPH08291814A | 1996-11-05 | |||
| JPH03272828A | 1991-12-04 | |||
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| JP2002327726A | 2002-11-15 |
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Okuko Masako
Ono Wataru
Tadao Naito
Katsuaki Tsunemitsu
Asako Ando
Hirofumi Higashino
Takeko Miko