WO2009001417A1 - Locking double nut - Google Patents

Locking double nut Download PDF

Info

Publication number
WO2009001417A1
WO2009001417A1 PCT/JP2007/062606 JP2007062606W WO2009001417A1 WO 2009001417 A1 WO2009001417 A1 WO 2009001417A1 JP 2007062606 W JP2007062606 W JP 2007062606W WO 2009001417 A1 WO2009001417 A1 WO 2009001417A1
Authority
WO
WIPO (PCT)
Prior art keywords
nut
outer circumference
fastened
cover
locking double
Prior art date
Application number
PCT/JP2007/062606
Other languages
French (fr)
Japanese (ja)
Inventor
Katsuhiko Wakabayashi
Original Assignee
Hard Lock Industry Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hard Lock Industry Co., Ltd. filed Critical Hard Lock Industry Co., Ltd.
Priority to PCT/JP2007/062606 priority Critical patent/WO2009001417A1/en
Publication of WO2009001417A1 publication Critical patent/WO2009001417A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/005—Measures against unauthorised operation of bolts, nuts or pins

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

Provided is a locking double nut comprising a lower nut (1), an upper nut (2) and a cover (3) for covering the outer circumference of the lower nut. The upper nut (2) includes a circular cylinder portion (7) having a smooth outer circumference, and a turning operation portion (8) molded integrally with the upper end of the cylinder portion (7) through a connecting portion (9). This connecting portion (9) is so formed as is broken, when the upper nut is fastened with a turning tool by a fastening torque exceeding a predetermined torque, so that the turning operation portion leaves the cylinder portion. The cover (3) has a cylindrical body portion (13) for covering the outer circumference of the lower nut. The cylindrical body portion (13) has a smooth outer circumference (16), and its upper end portion contacts the lower face of the upper nut 2, when the upper nut 2 is fastened, so that the cover (3) cannot be removed. As a result, both the upper and lower nuts cannot be turned after fastened.
PCT/JP2007/062606 2007-06-22 2007-06-22 Locking double nut WO2009001417A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/062606 WO2009001417A1 (en) 2007-06-22 2007-06-22 Locking double nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/062606 WO2009001417A1 (en) 2007-06-22 2007-06-22 Locking double nut

Publications (1)

Publication Number Publication Date
WO2009001417A1 true WO2009001417A1 (en) 2008-12-31

Family

ID=40185251

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/062606 WO2009001417A1 (en) 2007-06-22 2007-06-22 Locking double nut

Country Status (1)

Country Link
WO (1) WO2009001417A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014126159A (en) * 2012-12-27 2014-07-07 Yoshitaka Akino Device for preventing loosening of nut
KR20200015441A (en) * 2018-08-03 2020-02-12 펭 조우 Antivibration Nut Sets
CN112002869A (en) * 2020-07-17 2020-11-27 华富(江苏)锂电新技术有限公司 Anti-torque lithium battery connecting terminal and manufacturing method and connecting method thereof
CN112352089A (en) * 2018-07-02 2021-02-09 三菱动力株式会社 Stator blade segment and steam turbine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722411A (en) * 1980-05-27 1982-02-05 Toreiraa Marine Toransupooto C Attachment for detecting removal of wheel rag nut
JPH11311237A (en) * 1998-04-24 1999-11-09 Sanwa Koki Kk Bolt removal preventive fitting
JP2007040344A (en) * 2005-08-01 2007-02-15 Hard Lock Industry Co Ltd Nut having removal preventing function and special self-locking double nut

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722411A (en) * 1980-05-27 1982-02-05 Toreiraa Marine Toransupooto C Attachment for detecting removal of wheel rag nut
JPH11311237A (en) * 1998-04-24 1999-11-09 Sanwa Koki Kk Bolt removal preventive fitting
JP2007040344A (en) * 2005-08-01 2007-02-15 Hard Lock Industry Co Ltd Nut having removal preventing function and special self-locking double nut

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014126159A (en) * 2012-12-27 2014-07-07 Yoshitaka Akino Device for preventing loosening of nut
CN112352089A (en) * 2018-07-02 2021-02-09 三菱动力株式会社 Stator blade segment and steam turbine
CN112352089B (en) * 2018-07-02 2022-08-12 三菱重工业株式会社 Stator blade segment and steam turbine
KR20200015441A (en) * 2018-08-03 2020-02-12 펭 조우 Antivibration Nut Sets
KR102334719B1 (en) 2018-08-03 2021-12-07 펭 조우 Anti-vibration nut set
CN112002869A (en) * 2020-07-17 2020-11-27 华富(江苏)锂电新技术有限公司 Anti-torque lithium battery connecting terminal and manufacturing method and connecting method thereof
CN112002869B (en) * 2020-07-17 2023-07-25 华富(江苏)锂电新技术有限公司 Torque-resistant lithium battery connecting terminal, manufacturing method and connecting method thereof

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