Title:
管継手用加締めナット
Document Type and Number:
Japanese Patent JP7024346
Kind Code:
B2
Abstract:
To improve work efficiency when a pipe joint and equipment side joint fitting are connected to each other, improve durability of the pipe joint and anti-pressure performance.SOLUTION: Since an inner side surface 4202 of a fastening nut 16 for a pipe joint is formed by an inclined surface displaced in such a direction as one moving away from a cylindrical part 40 as it is moved from a cylindrical surface 4002 to an inside part in a radial direction, an angle of the inner side surface 4202 in respect to a shaft center of the fastening nut 16 for a pipe joint is varied due to fastening of a projection part 42 of the fastening nut 16 for the pipe joint and the inner side surface 4202 is positioned on a plane crossing at a right angle with a shaft center of the fastening nut 16 for the pipe joint. When a female thread 3802 of the fastening nut 16 for the pipe joint is engaged in thread with a male thread 4602 of equipment side joint fitting 46, the inner side surface 4202 of the fastening nut 16 for the pipe joint and a side surface 2202 of a large diameter part 22 of a joint body 14 approach to each other while keeping their parallel states and the inner side surface 4202 of the fastening nut 16 for the pipe joint and the side surface 2202 of the large diameter part 22 of the joint body 14 approach to each other while keeping their parallel states and then the inner side surface 4202 of the fastening nut 16 for the pipe joint and the side surface 2202 of the large diameter part 22 of the joint body 14 are contacted in surface to each other.SELECTED DRAWING: Figure 1
Inventors:
Waterfall summer picking
Daisuke Eida
Daisuke Eida
Application Number:
JP2017224486A
Publication Date:
February 24, 2022
Filing Date:
November 22, 2017
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
F16L19/025; F16L23/036
Domestic Patent References:
| JP2015227718A | ||||
| JP11248059A |
Foreign References:
| EP3015751A1 |
Attorney, Agent or Firm:
Shigeru Noda
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