GB1391065A - Self-locking nuts - Google Patents

Self-locking nuts

Info

Publication number
GB1391065A
GB1391065A GB801971A GB801971A GB1391065A GB 1391065 A GB1391065 A GB 1391065A GB 801971 A GB801971 A GB 801971A GB 801971 A GB801971 A GB 801971A GB 1391065 A GB1391065 A GB 1391065A
Authority
GB
United Kingdom
Prior art keywords
locking
regions
self
diameter
recess
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB801971A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Firth Cleveland Fastenings Ltd
Original Assignee
Firth Cleveland Fastenings 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 Firth Cleveland Fastenings Ltd filed Critical Firth Cleveland Fastenings Ltd
Priority to GB801971A priority Critical patent/GB1391065A/en
Priority to FR7210998A priority patent/FR2131713A5/fr
Priority to NL7204272A priority patent/NL7204272A/xx
Priority to ZA722137A priority patent/ZA722137B/en
Priority to DE2215354A priority patent/DE2215354A1/en
Publication of GB1391065A publication Critical patent/GB1391065A/en
Expired legal-status Critical Current

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
    • F16B39/284—Locking by means of elastic deformation
    • 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
    • F16B39/30—Locking exclusively by special shape of the screw-thread

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Connection Of Plates (AREA)

Abstract

1391065 Self-locking nuts FIRTH CLEVELAND FASTENINGS Ltd 29 March 1972 [29 March 1971] 8019/71 Heading F2H A self-locking nut comprises a cylindrical threaded portion 6 and a recess which serves as a locking portion the recess being of elliptical cross-section which in a first embodiment has a minor axis equal to the diameter of the bore of portion 6 and a major axis greater than the maximum diameter of thread in portion 6. A thread is formed in the locking portion of equal pitch to that in portion 6 but of reduced diameter. Thus tapped 8 and untapped 9 regions are formed and flexing of regions 9, which have relatively thin walls, occurs when a bolt progresses from bearing face 4, the resilience of regions 9 then creating a self-locking action. The threads in region 8, while incomplete are cylindrical and remain so during locking. In a second embodiment, the major axis is less than the outer diameter of portion 6 thereby resulting in regions 9 being tapped but to a lesser depth than in regions 8. In a modification, the minor axis of the locking portion is less than the outer diameter of portion 6 but greater than the inner diameter. Further, the elliptical recess may taper slightly towards a non-bearing face 3.
GB801971A 1971-03-29 1971-03-29 Self-locking nuts Expired GB1391065A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB801971A GB1391065A (en) 1971-03-29 1971-03-29 Self-locking nuts
FR7210998A FR2131713A5 (en) 1971-03-29 1972-03-29
NL7204272A NL7204272A (en) 1971-03-29 1972-03-29
ZA722137A ZA722137B (en) 1971-03-29 1972-03-29 Improvements in or relating to self-locking nuts
DE2215354A DE2215354A1 (en) 1971-03-29 1972-03-29 METALLIC SELF-LOCKING POLE NUTS AND METHOD OF MANUFACTURING THEREOF

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB801971A GB1391065A (en) 1971-03-29 1971-03-29 Self-locking nuts

Publications (1)

Publication Number Publication Date
GB1391065A true GB1391065A (en) 1975-04-16

Family

ID=9844233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB801971A Expired GB1391065A (en) 1971-03-29 1971-03-29 Self-locking nuts

Country Status (5)

Country Link
DE (1) DE2215354A1 (en)
FR (1) FR2131713A5 (en)
GB (1) GB1391065A (en)
NL (1) NL7204272A (en)
ZA (1) ZA722137B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190972A (en) * 1986-05-22 1987-12-02 Armstrong Fastenings Nuts
GB2196079A (en) * 1986-08-26 1988-04-20 Tokai Trw & Co Connecting structure between rack and rack end ball joint in rack-and-pinion steering gear

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015120837A1 (en) * 2015-12-01 2017-06-01 Witte Automotive Gmbh Device for attaching a first component to a second component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190972A (en) * 1986-05-22 1987-12-02 Armstrong Fastenings Nuts
GB2196079A (en) * 1986-08-26 1988-04-20 Tokai Trw & Co Connecting structure between rack and rack end ball joint in rack-and-pinion steering gear

Also Published As

Publication number Publication date
FR2131713A5 (en) 1972-11-10
NL7204272A (en) 1972-10-03
DE2215354A1 (en) 1973-10-25
ZA722137B (en) 1972-12-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee