GB2176560A - Locking of fasteners - Google Patents

Locking of fasteners Download PDF

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Publication number
GB2176560A
GB2176560A GB08514937A GB8514937A GB2176560A GB 2176560 A GB2176560 A GB 2176560A GB 08514937 A GB08514937 A GB 08514937A GB 8514937 A GB8514937 A GB 8514937A GB 2176560 A GB2176560 A GB 2176560A
Authority
GB
United Kingdom
Prior art keywords
bell
nut
threaded
locking
axially
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.)
Granted
Application number
GB08514937A
Other versions
GB8514937D0 (en
GB2176560B (en
Inventor
Stuart Dudley Carew Wallace
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08514937A priority Critical patent/GB2176560B/en
Publication of GB8514937D0 publication Critical patent/GB8514937D0/en
Publication of GB2176560A publication Critical patent/GB2176560A/en
Application granted granted Critical
Publication of GB2176560B publication Critical patent/GB2176560B/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
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

A male threaded member (1) has a splined extension projecting beyond the nut (2). A bell (3) having two anti-rotation forms such as internal splines, is moved axially so that the smaller diameter spline engages the splined shaft extension and the larger diameter form engages the nut (2). The bell (3) may be retained axially by a spring ring, circlip (4), or spit pin. The smaller spline prevents rotation of the bell (3) relative to the screwed male member (1) and the larger form prevents rotation of the nut 2 (which may be a standard hexagon nut) relative to the bell (3). <IMAGE>

Description

SPECIFICATION Metso vernier-lock fastener This invention relates to screwed FASTEN ERS.
Threaded fasteners are a fundamental element in a wide range of engineering applications, both static and dynamic.
The present invention is a form of Positively Locking system for nuts on threaded elements.
The principle of this positive locking system is graphically illustrated in Fig.
Principles of Metso Vernier-Lock System: The male threaded member (I) has a splined extension. A bell (3) having two internal splines or anti-rotation forms, is assembled axially, the smaller diameter spline on the shaft extension and the larger diameter on the nut (2). The bell (3) may be retained axially by a spring ring, circlip (4), split pin or any other conventional means.
The smaller spline prevents rotation of the bell (3) relative to the screwed male member and the larger form prevents rotation of the nut (which may be a standard hexagon nut) relative to the bell (3).
1. A mechanism for locking a nut on a threaded spindle, bolt, screw, or fastener which has on the non-ciamping side an antirotation form and a groove onto which, after tightening the nut, is fitted axially a locking bell with two co-axial internal anti-rotation forms, in turn retained axially by a clip or circlip with the two anti-rotation forms preventing relative movement between the parts thus giving a high integrity locking mechanism for threaded fastenings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (1)

  1. **WARNING** start of CLMS field may overlap end of DESC **.
    SPECIFICATION Metso vernier-lock fastener This invention relates to screwed FASTEN ERS.
    Threaded fasteners are a fundamental element in a wide range of engineering applications, both static and dynamic.
    The present invention is a form of Positively Locking system for nuts on threaded elements.
    The principle of this positive locking system is graphically illustrated in Fig.
    Principles of Metso Vernier-Lock System: The male threaded member (I) has a splined extension. A bell (3) having two internal splines or anti-rotation forms, is assembled axially, the smaller diameter spline on the shaft extension and the larger diameter on the nut (2). The bell (3) may be retained axially by a spring ring, circlip (4), split pin or any other conventional means.
    The smaller spline prevents rotation of the bell (3) relative to the screwed male member and the larger form prevents rotation of the nut (which may be a standard hexagon nut) relative to the bell (3).
    1. A mechanism for locking a nut on a threaded spindle, bolt, screw, or fastener which has on the non-ciamping side an antirotation form and a groove onto which, after tightening the nut, is fitted axially a locking bell with two co-axial internal anti-rotation forms, in turn retained axially by a clip or circlip with the two anti-rotation forms preventing relative movement between the parts thus giving a high integrity locking mechanism for threaded fastenings.
GB08514937A 1985-06-13 1985-06-13 Lock fastener Expired GB2176560B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08514937A GB2176560B (en) 1985-06-13 1985-06-13 Lock fastener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08514937A GB2176560B (en) 1985-06-13 1985-06-13 Lock fastener

Publications (3)

Publication Number Publication Date
GB8514937D0 GB8514937D0 (en) 1985-07-17
GB2176560A true GB2176560A (en) 1986-12-31
GB2176560B GB2176560B (en) 1988-10-19

Family

ID=10580668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08514937A Expired GB2176560B (en) 1985-06-13 1985-06-13 Lock fastener

Country Status (1)

Country Link
GB (1) GB2176560B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230453A1 (en) * 1985-07-17 1987-08-05 Bruce Allan Bennett Locking fastener.
GB2256689A (en) * 1991-04-12 1992-12-16 Marco Benito Pagliuca Locking of nuts to screw-threaded shanks
GB2331342A (en) * 1997-09-17 1999-05-19 Moog Inc Screw adjustment lock mechanism
EP0976935A1 (en) * 1998-07-30 2000-02-02 DaimlerChrysler AG Device for positively locking a bolt
GB2539218A (en) * 2015-06-09 2016-12-14 Airbus Operations Ltd A pin assembly
CN107218286A (en) * 2015-01-06 2017-09-29 陈建欢 Fastening kit
CN109908504A (en) * 2019-03-26 2019-06-21 国网湖北省电力公司咸宁供电公司 Safety belt suspension device is used in a kind of maintenance of main transformer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109296622A (en) * 2018-12-07 2019-02-01 江西洪都航空工业集团有限责任公司 A kind of anti-loosening structure for thread connection under space constraint

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB200232A (en) * 1922-04-13 1923-07-12 Alfred Ernest Evans Improvements in and in connection with lock nuts or check nuts
GB371254A (en) * 1931-08-10 1932-04-21 Karl Bodmer Nut lock
GB496832A (en) * 1937-09-28 1938-12-07 Jean Joseph Ghislain Mossay Device for preventing undesired loosening of nuts
GB624386A (en) * 1946-12-16 1949-06-07 Napier & Son Ltd Improvements in or relating to locking devices for pipe unions and other like separable parts
GB2002478A (en) * 1977-08-08 1979-02-21 Sun Shipbuilding & Dry Dock Co Fastening systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB200232A (en) * 1922-04-13 1923-07-12 Alfred Ernest Evans Improvements in and in connection with lock nuts or check nuts
GB371254A (en) * 1931-08-10 1932-04-21 Karl Bodmer Nut lock
GB496832A (en) * 1937-09-28 1938-12-07 Jean Joseph Ghislain Mossay Device for preventing undesired loosening of nuts
GB624386A (en) * 1946-12-16 1949-06-07 Napier & Son Ltd Improvements in or relating to locking devices for pipe unions and other like separable parts
GB2002478A (en) * 1977-08-08 1979-02-21 Sun Shipbuilding & Dry Dock Co Fastening systems

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230453A1 (en) * 1985-07-17 1987-08-05 Bruce Allan Bennett Locking fastener.
EP0230453A4 (en) * 1985-07-17 1991-07-31 Bruce Allan Bennett Locking fastener
GB2256689A (en) * 1991-04-12 1992-12-16 Marco Benito Pagliuca Locking of nuts to screw-threaded shanks
GB2331342A (en) * 1997-09-17 1999-05-19 Moog Inc Screw adjustment lock mechanism
EP0976935A1 (en) * 1998-07-30 2000-02-02 DaimlerChrysler AG Device for positively locking a bolt
CN107218286A (en) * 2015-01-06 2017-09-29 陈建欢 Fastening kit
CN107218286B (en) * 2015-01-06 2021-05-18 东莞市沃耳特五金科技有限公司 Fastening external member
GB2539218A (en) * 2015-06-09 2016-12-14 Airbus Operations Ltd A pin assembly
US10041525B2 (en) 2015-06-09 2018-08-07 Airbus Operations Limited Pin assembly
CN109908504A (en) * 2019-03-26 2019-06-21 国网湖北省电力公司咸宁供电公司 Safety belt suspension device is used in a kind of maintenance of main transformer

Also Published As

Publication number Publication date
GB8514937D0 (en) 1985-07-17
GB2176560B (en) 1988-10-19

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Legal Events

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