Title:
FASTENING MEMBER AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JP2724099
Kind Code:
B2
Abstract:
PURPOSE: To surely prevent looseness of fastening members without using a part such as washer.
CONSTITUTION: In thread members provided with a first thread member 1 and a second thread member 2, the first thread member 1 is formed with compressive contact parts 25 on the extreme end side, compressive contact parts 26 on the root side, and recessed parts 27. When the first thread member 1 and the second thread member 2 are threadedly engaged with each other, either of the compressive contact parts 25 on the extreme end side or the compressive contact parts 26 on the root side 26 are elastically deformed in the direction in parallel with the axis, this elastic deformation is converted to the other compressive contact part through the recessed part 27, and hence the two thread members are fastened while respectively receiving strong resisting force on both compressive contact parts.
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| JP2004176901 | BOLT |
| WO/1992/011467 | UNTIGHTENING PREVENTIVE SCREW |
Inventors:
ISHIKAWA SUEO
Application Number:
JP29104493A
Publication Date:
March 09, 1998
Filing Date:
November 19, 1993
Export Citation:
Assignee:
TAKENAKA JUGEN
OOTAKE SHIZUO
OOTAKE SHIZUO
International Classes:
F16B39/30; B21H3/02; (IPC1-7): F16B39/30; B21H3/02
Domestic Patent References:
| JP346686A | ||||
| JP62241613A | ||||
| JP3149128A | ||||
| JP742724A | ||||
| JP2101119U | ||||
| JP4739387B1 |
Attorney, Agent or Firm:
Yamato Tsutsui (2 outside)
Yamato Tsutsui (2 outside)
Yamato Tsutsui (2 outside)