Title:
DOUBLE NUT FASTENER OF DOUBLE SCREW
Document Type and Number:
Japanese Patent JP2023035922
Kind Code:
A
Abstract:
To provide a fastening method capable of eliminating looseness even when exposed to vibration in double nut fastening with a double screw structure.SOLUTION: When a double nut of an inside nut 7 and an outside nut 9 is screwed into a screw part 10 formed with a double screw, a spring washer 8 is interposed between both nuts. By only tightening the outside nut 9, the inside nut 7 is also tightened and the spring washer 8 is compressed. The spring washer 8 can ensure both axial force for clamping an object to be fastened 2 and axial force between the nuts, so that it is difficult to loosen.SELECTED DRAWING: Figure 2
Inventors:
SHINBUTSU TOSHINAKA
AMANO SHUICHI
AMANO SHUICHI
Application Number:
JP2022131784A
Publication Date:
March 13, 2023
Filing Date:
August 22, 2022
Export Citation:
Assignee:
TENZO GIJUTSU KENKYUSHO CO LTD
International Classes:
F16B35/00; F16B39/12; F16B39/30
Attorney, Agent or Firm:
Tomisaki Motonari
Tomisaki Yo
Tomisaki Yo