GB2077384A - Torque limiting tamper resistant fastener - Google Patents

Torque limiting tamper resistant fastener Download PDF

Info

Publication number
GB2077384A
GB2077384A GB8100945A GB8100945A GB2077384A GB 2077384 A GB2077384 A GB 2077384A GB 8100945 A GB8100945 A GB 8100945A GB 8100945 A GB8100945 A GB 8100945A GB 2077384 A GB2077384 A GB 2077384A
Authority
GB
United Kingdom
Prior art keywords
driving
torque
fastener
body portion
driving portion
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.)
Withdrawn
Application number
GB8100945A
Other languages
English (en)
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.)
Microdot Inc
Original Assignee
Microdot Inc
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 Microdot Inc filed Critical Microdot Inc
Publication of GB2077384A publication Critical patent/GB2077384A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/1415—Break members; Arrangements specially adapted for break-bolts
    • 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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0061—Specially shaped nuts or heads of bolts or screws for rotations by a tool with grooves, notches or splines on the external peripheral surface designed for tools engaging in radial direction
    • 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
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/021—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load by means of a frangible part
    • 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)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Joining Of Building Structures In Genera (AREA)
GB8100945A 1980-05-27 1981-01-13 Torque limiting tamper resistant fastener Withdrawn GB2077384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15368880A 1980-05-27 1980-05-27

Publications (1)

Publication Number Publication Date
GB2077384A true GB2077384A (en) 1981-12-16

Family

ID=22548307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8100945A Withdrawn GB2077384A (en) 1980-05-27 1981-01-13 Torque limiting tamper resistant fastener

Country Status (5)

Country Link
JP (1) JPS5712107A (enExample)
DE (1) DE3102129A1 (enExample)
FR (1) FR2483546A1 (enExample)
GB (1) GB2077384A (enExample)
IT (1) IT1135382B (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518295A (en) * 1983-06-20 1985-05-21 Textron Inc. Multi-part fastening nut, including jam nut
GB2152417A (en) * 1984-01-10 1985-08-07 Charles Wolstenhulme Fastener and tool for fastening and unfastening the same
FR2598855A1 (fr) * 1986-05-14 1987-11-20 Sicame Sa Embout de vissage adhesif, cassable et jetable, a couple de vissage predetermine.
US4784549A (en) * 1985-02-15 1988-11-15 Wing George S Torque-limited collar
EP0287381A3 (en) * 1987-04-16 1990-06-13 Supedo Pty. Limited Fastening device
DE3906787A1 (de) * 1989-03-03 1990-09-13 Muhr & Bender Mechanische spanneinrichtung
US8690504B2 (en) 2011-12-08 2014-04-08 Phoenix Contact Development and Manufacturing, Inc. Torque-limited and removable fastener for one-time use

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019005355A1 (de) * 2019-03-28 2020-10-01 Grohe Ag Verfahren zur Herstellung einer Verbindungsanordnung sowie eine Mutter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449998A (en) * 1968-01-31 1969-06-17 Hi Shear Corp Inherently torque-limited fastener
GB1463496A (en) * 1973-04-25 1977-02-02 Chart D Screw-threaded fasteners
FR2331836A1 (fr) * 1975-11-13 1977-06-10 Sibe Perfectionnements apportes aux dispositifs de securite destines a eviter les reglages non autorises
DE2635805A1 (de) * 1976-08-09 1978-02-16 Hilti Ag Duebel mit setzkontrolle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518295A (en) * 1983-06-20 1985-05-21 Textron Inc. Multi-part fastening nut, including jam nut
GB2152417A (en) * 1984-01-10 1985-08-07 Charles Wolstenhulme Fastener and tool for fastening and unfastening the same
US4784549A (en) * 1985-02-15 1988-11-15 Wing George S Torque-limited collar
FR2598855A1 (fr) * 1986-05-14 1987-11-20 Sicame Sa Embout de vissage adhesif, cassable et jetable, a couple de vissage predetermine.
EP0287381A3 (en) * 1987-04-16 1990-06-13 Supedo Pty. Limited Fastening device
DE3906787A1 (de) * 1989-03-03 1990-09-13 Muhr & Bender Mechanische spanneinrichtung
US8690504B2 (en) 2011-12-08 2014-04-08 Phoenix Contact Development and Manufacturing, Inc. Torque-limited and removable fastener for one-time use

Also Published As

Publication number Publication date
IT8119617A0 (it) 1981-02-09
FR2483546A1 (fr) 1981-12-04
IT1135382B (it) 1986-08-20
FR2483546B1 (enExample) 1984-12-07
DE3102129A1 (de) 1981-12-24
JPS5712107A (en) 1982-01-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)