WO2008152963A1 - Loosening preventive nut - Google Patents

Loosening preventive nut Download PDF

Info

Publication number
WO2008152963A1
WO2008152963A1 PCT/JP2008/060298 JP2008060298W WO2008152963A1 WO 2008152963 A1 WO2008152963 A1 WO 2008152963A1 JP 2008060298 W JP2008060298 W JP 2008060298W WO 2008152963 A1 WO2008152963 A1 WO 2008152963A1
Authority
WO
WIPO (PCT)
Prior art keywords
nut
washer
bolt
loosening
truncated cone
Prior art date
Application number
PCT/JP2008/060298
Other languages
French (fr)
Japanese (ja)
Inventor
Nobuhiko Futagawa
Original Assignee
Nobuhiko Futagawa
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 Nobuhiko Futagawa filed Critical Nobuhiko Futagawa
Publication of WO2008152963A1 publication Critical patent/WO2008152963A1/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
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/36—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt with conical locking parts, which may be split, including use of separate rings co-operating therewith
    • 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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/005—Nuts or like thread-engaging members into which threads are cut during screwing
    • 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
    • F16B39/16—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut
    • 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
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/284—Locking by means of elastic deformation
    • F16B39/286—Locking by means of elastic deformation caused by saw cuts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Gasket Seals (AREA)

Abstract

[PROBLEMS] A loosening preventive nut that can reliably and firmly prevent loosening between a bolt and a nut and has a structure suitable for mass production. [MEANS FOR SOLVING PROBLEMS] The loosening preventive nut has the nut threaded and secured to the bolt and also has a washer placed between the nut and the bolt. The washer has a tubular insertion section into which the bolt is inserted, and the washer is divided by a slit axially extending from one end to the other end of the washer. The outer peripheral surface of the washer is formed in a truncated cone shape. To tighten the nut, the nut and the washer are made to be in contact with each other through the truncated cone-shaped tapered surface. Then, the nut is tightened through its contact with the truncated cone-shaped tapered surface, which reduces the diameter of the washer at the slit to secure the nut. This causes the inner peripheral surface of the washer to be in pressing contact with the bolt, preventing loosening of the nut. A screw thread in the direction opposite the direction of the screw thread of the bolt is formed on the tubular inner surface of the washer.
PCT/JP2008/060298 2007-06-12 2008-06-04 Loosening preventive nut WO2008152963A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007155705A JP4072832B1 (en) 2007-06-12 2007-06-12 Locking nut
JP2007-155705 2007-06-12

Publications (1)

Publication Number Publication Date
WO2008152963A1 true WO2008152963A1 (en) 2008-12-18

Family

ID=39356493

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/060298 WO2008152963A1 (en) 2007-06-12 2008-06-04 Loosening preventive nut

Country Status (3)

Country Link
JP (1) JP4072832B1 (en)
TW (1) TW200916667A (en)
WO (1) WO2008152963A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2492171A4 (en) * 2009-10-22 2017-07-26 Tatsuru Ichishima Method for fastening subframe to motor vehicle body by means of fastening bolts and subframe rigid collar for motor vehicle
CN113685421A (en) * 2021-08-25 2021-11-23 浙江安盛汽车零部件有限公司 Rivet nut
CN113811692A (en) * 2019-05-22 2021-12-17 三菱电机株式会社 Decorative panel fastener
CN115111250A (en) * 2022-05-23 2022-09-27 中冶焦耐(大连)工程技术有限公司 Double-nut anti-loose threaded connection method
CN115921077A (en) * 2022-12-20 2023-04-07 华能吉林发电有限公司九台电厂 A protection fixed knot constructs for crushing equipment

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101458079B1 (en) * 2012-10-30 2014-11-13 (주)세강엔지니어링 Power distribution equipment having alarm system
CN102913531A (en) * 2012-11-07 2013-02-06 武汉卡特机械制造有限公司 Hydraulic bolt
KR101948566B1 (en) * 2012-12-26 2019-02-15 엘지전자 주식회사 Compressor
JP6192156B2 (en) * 2013-02-28 2017-09-06 有限会社ウェジコ Fastening structure, fastening determination method, and fastening structure assembly method
KR200469132Y1 (en) 2013-04-30 2013-09-23 이진숙 Safe lock nut
JP6382673B2 (en) * 2014-10-06 2018-08-29 ナックス株式会社 Fastener
KR101552840B1 (en) 2015-05-19 2015-09-14 백민수 A flange structure of high-voltage bushing improved unity and airtightness
CN107630898A (en) * 2016-07-18 2018-01-26 天津市天龙得冷成型部件有限公司 Novel car seat slide rail sliding nut
CN107191463A (en) * 2017-07-19 2017-09-22 太仓永固精密制件有限公司 A kind of bolt fastener with internal clamp
CN107779999A (en) * 2017-11-22 2018-03-09 杨海东 Rail and connecting seat and the fastener with deadlight in a kind of spinning frame
CN113153886B (en) * 2020-01-22 2022-09-16 林家民 Anti-loosening nut group
JP7461462B2 (en) * 2020-04-09 2024-04-03 株式会社日立製作所 Elevator guide rail fixing device and elevator device
JP7116899B1 (en) * 2021-01-30 2022-08-12 株式会社貴匠技研 Combination nut with anti-loosening function

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4616674Y1 (en) * 1965-01-08 1971-06-10
JPS51113561U (en) * 1975-03-11 1976-09-14
JPS52132968U (en) * 1976-03-12 1977-10-08
JPH06300029A (en) * 1993-04-16 1994-10-25 Kitaura Kogyo Kk Washer
JP2004505218A (en) * 2000-07-28 2004-02-19 株式会社青山製作所 Fastener
WO2005080807A1 (en) * 2004-02-06 2005-09-01 Fusao Yamada Fastening body with loosening preventing ability
JP2007040347A (en) * 2005-08-01 2007-02-15 Nobuhiko Futagawa Self-locking nut

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4616674Y1 (en) * 1965-01-08 1971-06-10
JPS51113561U (en) * 1975-03-11 1976-09-14
JPS52132968U (en) * 1976-03-12 1977-10-08
JPH06300029A (en) * 1993-04-16 1994-10-25 Kitaura Kogyo Kk Washer
JP2004505218A (en) * 2000-07-28 2004-02-19 株式会社青山製作所 Fastener
WO2005080807A1 (en) * 2004-02-06 2005-09-01 Fusao Yamada Fastening body with loosening preventing ability
JP2007040347A (en) * 2005-08-01 2007-02-15 Nobuhiko Futagawa Self-locking nut

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2492171A4 (en) * 2009-10-22 2017-07-26 Tatsuru Ichishima Method for fastening subframe to motor vehicle body by means of fastening bolts and subframe rigid collar for motor vehicle
CN113811692A (en) * 2019-05-22 2021-12-17 三菱电机株式会社 Decorative panel fastener
CN113685421A (en) * 2021-08-25 2021-11-23 浙江安盛汽车零部件有限公司 Rivet nut
CN115111250A (en) * 2022-05-23 2022-09-27 中冶焦耐(大连)工程技术有限公司 Double-nut anti-loose threaded connection method
CN115921077A (en) * 2022-12-20 2023-04-07 华能吉林发电有限公司九台电厂 A protection fixed knot constructs for crushing equipment

Also Published As

Publication number Publication date
JP4072832B1 (en) 2008-04-09
JP2008309202A (en) 2008-12-25
TW200916667A (en) 2009-04-16

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