Title:
被締結物の締結構造及びボルト穴構造
Document Type and Number:
Japanese Patent JP7128501
Kind Code:
B2
Abstract:
The purpose of the present invention is to improve the fatigue strength and lifespan of a bolt by widely distributing, over engagement screw threads, the flow of stress between the object to be fastened (1) through which a bolt has been passed and a nut (4) and reducing a load concentration to a first engagement screw thread. To this end, stress non-transmission spaces (1s) are formed on the nut (4) side and a bolt hole (1h) side of an object to be fastened (1).
Inventors:
Makoto Matsuo
Komei Hayashida
Yoshinao Iwamoto
Komei Hayashida
Yoshinao Iwamoto
Application Number:
JP2021527327A
Publication Date:
August 31, 2022
Filing Date:
December 17, 2019
Export Citation:
Assignee:
Matsuo Industry Co., Ltd.
Imott corporation
Imott corporation
International Classes:
F16B31/06; F16B5/02
Domestic Patent References:
| JP7167129A | ||||
| JP225710U | ||||
| JP201919613A |
Foreign References:
| US20090297261 | ||||
| US8926248 |
Attorney, Agent or Firm:
Aoki Atsushi
Shinji Mihashi
Kazuhiro Nakamura
Nobuo Sekine
Shujiro Aoki
Satoshi Murakami
Tetsuji Koga
Shinji Mihashi
Kazuhiro Nakamura
Nobuo Sekine
Shujiro Aoki
Satoshi Murakami
Tetsuji Koga