FR2430537A2 - Self-tapping bolt for insertion by power tool - has flange with contoured upward radial projections capable of receiving torque from tool head - Google Patents

Self-tapping bolt for insertion by power tool - has flange with contoured upward radial projections capable of receiving torque from tool head

Info

Publication number
FR2430537A2
FR2430537A2 FR7916405A FR7916405A FR2430537A2 FR 2430537 A2 FR2430537 A2 FR 2430537A2 FR 7916405 A FR7916405 A FR 7916405A FR 7916405 A FR7916405 A FR 7916405A FR 2430537 A2 FR2430537 A2 FR 2430537A2
Authority
FR
France
Prior art keywords
flange
self
radial projections
receiving torque
tool
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
FR7916405A
Other languages
French (fr)
Other versions
FR2430537B2 (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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works 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
Priority claimed from US05/805,057 external-priority patent/US4125051A/en
Priority claimed from US05/921,662 external-priority patent/US4223585A/en
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of FR2430537A2 publication Critical patent/FR2430537A2/en
Application granted granted Critical
Publication of FR2430537B2 publication Critical patent/FR2430537B2/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
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • F16B35/065—Specially-shaped heads with self-countersink-cutting means
    • 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
    • F16B23/0076—Specially shaped nuts or heads of bolts or screws for rotations by a tool causing slipping of the tool in loosening rotation, i.e. disabling unscrewing unless another tool is used
    • 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
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • F16B35/042—Specially-shaped shafts for retention or rotation by a tool, e.g. of polygonal cross-section

Abstract

The fastening element (10) has a first (12) and a second bolt portion 30) separated by a thin integral flange (18). The first portion is provided with self-tapping external thread (16, 14). On the side of the portion (30), the flange face has an upward projection (24). The upward projections extend in radial direction and are contoured so that one radially extending side (26) is at right angles to the flange face, whilst the other side (28) slopes upwards from the face to meet the side (26). A suitable tool can engage the sides and transmit a torque to the bolt so as to screw the portion into a bore.
FR7916405A 1977-06-09 1979-06-26 TWO-POINT FIXING ELEMENT Expired FR2430537B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US80505677A 1977-06-09 1977-06-09
US05/805,057 US4125051A (en) 1977-06-09 1977-06-09 Tamperproof fastener
US05/921,662 US4223585A (en) 1977-06-09 1978-07-03 Double-ended stud with combined driving and locking means

Publications (2)

Publication Number Publication Date
FR2430537A2 true FR2430537A2 (en) 1980-02-01
FR2430537B2 FR2430537B2 (en) 1986-05-09

Family

ID=27420010

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7916405A Expired FR2430537B2 (en) 1977-06-09 1979-06-26 TWO-POINT FIXING ELEMENT

Country Status (4)

Country Link
JP (2) JPS5416063A (en)
AU (1) AU4846479A (en)
DE (1) DE2925526A1 (en)
FR (1) FR2430537B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485120A1 (en) * 1980-06-23 1981-12-24 Illinois Tool Works FIXED FIXING BODY AND IN PARTICULAR DOUBLE STUD
FR2863154A1 (en) * 2003-12-08 2005-06-10 Pierre Grossmann Christmas tree and wood support integration device, has central part mounted on double threaded rod whose one end is screwed on tree and other end on support, where device is made of steel or plastic with high mechanical characteristics
EP1462664A3 (en) * 2003-03-28 2007-03-28 General Electric Company Methods and apparatus for joining gas turbine parts together

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57210243A (en) * 1981-06-19 1982-12-23 Tobishima Kensetsu Kk Temperature reversing prevention type heat accumulation wall
JPS58163822A (en) * 1982-03-20 1983-09-28 Okuma Mach Works Ltd Shaft coupling of differential screw
DE3312782C2 (en) * 1983-04-09 1986-07-17 Ford-Werke AG, 5000 Köln Screw for fastening and sealing on through-tapped holes
IT1172701B (en) * 1983-04-28 1987-06-18 Albino Marastoni HANDLEABLE FIXING DEVICE IN THE JOINT AREA BETWEEN THE TWO PIECES TO BE FIXED BETWEEN THEM
JPS6121410A (en) * 1984-07-10 1986-01-30 株式会社名古屋螺子製作所 Implant bolt
JPH0328540Y2 (en) * 1986-03-28 1991-06-19
DE3835543C1 (en) * 1988-10-19 1990-01-18 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Fastening element
JPH0430421Y2 (en) * 1989-02-28 1992-07-22
JPH08210336A (en) * 1995-01-31 1996-08-20 Nitto Seiko Co Ltd Tampering preventing screw
DE102005016097A1 (en) * 2005-04-08 2006-10-12 TOGE-Dübel A. Gerhard KG Fixing anchor
CN102312895A (en) * 2011-08-24 2012-01-11 成都科盛石油科技有限公司 Double-end connecting piece for oil exploitation field

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR466526A (en) * 1912-12-26 1914-05-15 Gustave Yseboodt Improvements to lag screws, nut bolts, etc.
FR1134843A (en) * 1954-08-09 1957-04-18 Self-tapping fixing device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813450A (en) * 1954-05-03 1957-11-19 Dzus William Rotatable fastener having circular toothed tool receiving groove
GB1223900A (en) * 1968-07-31 1971-03-03 Gkn Screws Fasteners Ltd Improvements in or relating to tamperproof screws
JPS5019077U (en) * 1973-06-15 1975-03-03
JPS51121650A (en) * 1975-04-10 1976-10-25 Illinois Tool Works Doubleeend stud bolt
CA1126061A (en) * 1977-06-09 1982-06-22 Walter T. Durham Fastener and drive system
JPS5527830A (en) * 1978-08-15 1980-02-28 Chiyoda Chem Eng & Constr Co Ltd Production of alumina carrier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR466526A (en) * 1912-12-26 1914-05-15 Gustave Yseboodt Improvements to lag screws, nut bolts, etc.
FR1134843A (en) * 1954-08-09 1957-04-18 Self-tapping fixing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485120A1 (en) * 1980-06-23 1981-12-24 Illinois Tool Works FIXED FIXING BODY AND IN PARTICULAR DOUBLE STUD
EP1462664A3 (en) * 2003-03-28 2007-03-28 General Electric Company Methods and apparatus for joining gas turbine parts together
FR2863154A1 (en) * 2003-12-08 2005-06-10 Pierre Grossmann Christmas tree and wood support integration device, has central part mounted on double threaded rod whose one end is screwed on tree and other end on support, where device is made of steel or plastic with high mechanical characteristics

Also Published As

Publication number Publication date
JPS5416063A (en) 1979-02-06
FR2430537B2 (en) 1986-05-09
DE2925526A1 (en) 1980-01-17
AU4846479A (en) 1980-01-10
JPS5510199A (en) 1980-01-24
JPS5527830B2 (en) 1980-07-23
JPS6237244B2 (en) 1987-08-11

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