SE8500173D0 - SCREW - Google Patents

SCREW

Info

Publication number
SE8500173D0
SE8500173D0 SE8500173A SE8500173A SE8500173D0 SE 8500173 D0 SE8500173 D0 SE 8500173D0 SE 8500173 A SE8500173 A SE 8500173A SE 8500173 A SE8500173 A SE 8500173A SE 8500173 D0 SE8500173 D0 SE 8500173D0
Authority
SE
Sweden
Prior art keywords
screw
lie
sides
sections
radial
Prior art date
Application number
SE8500173A
Other languages
Swedish (sv)
Other versions
SE8500173L (en
Inventor
A Bazzurro
Original Assignee
Barge Bulloneria
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 Barge Bulloneria filed Critical Barge Bulloneria
Publication of SE8500173D0 publication Critical patent/SE8500173D0/en
Publication of SE8500173L publication Critical patent/SE8500173L/en

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
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/06—Spanners; Wrenches with rigid jaws of socket type
    • B25B13/065—Spanners; Wrenches with rigid jaws of socket type characterised by the cross-section of the socket
    • 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
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/005—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section
    • 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
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool

Abstract

The head of a screw has a driving formation which has a multilobed profile (7) in a plane perpendicular to the axis of the screw, in which the two sides (8) of each lobe lie at least partially in radial planes, and the sections (10) which join the radially outer ends of pairs of the radial sides (8) lie on a single imaginary conical or pyramidal surface coaxial with the screw. The driving formation can be the inside of a recess or the outside of a projection on the bolt head. The sections (11) joining the radically inner ends of the radial sides (8) lie on the surfaces of a polygonal prism coaxial with the screw x, or on a conial or pyramidal surface. Precise setting of tightening torque by a complementary tool is possible. <IMAGE>
SE8500173A 1984-01-17 1985-01-15 SCREW SE8500173L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5284584U IT8452845V0 (en) 1984-01-17 1984-01-17 SCREW SUITABLE FOR PRECISION TIGHTENING TORQUES

Publications (2)

Publication Number Publication Date
SE8500173D0 true SE8500173D0 (en) 1985-01-15
SE8500173L SE8500173L (en) 1985-07-18

Family

ID=11277933

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8500173A SE8500173L (en) 1984-01-17 1985-01-15 SCREW

Country Status (7)

Country Link
BE (1) BE901515A (en)
DE (2) DE3501414A1 (en)
FR (1) FR2558220B1 (en)
GB (1) GB2153033B (en)
IT (1) IT8452845V0 (en)
NL (1) NL8500096A (en)
SE (1) SE8500173L (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4738820A (en) * 1986-11-21 1988-04-19 Westinghouse Electric Corp. Nuclear fuel assembly bottom nozzle attachment system allowing reconstitution
FR2643690A1 (en) * 1989-02-27 1990-08-31 Vattier Claude Screw-type fixing device, and support assemblies for a television set including this device
US5137407A (en) * 1989-11-22 1992-08-11 Osg Corporation Head drive for threaded fastener
DE9006908U1 (en) * 1990-06-20 1990-08-23 Schmitt, Horst, 4236 Hamminkeln, De
DE9010606U1 (en) * 1990-07-14 1990-09-20 Taubert, Hubert, Dipl.-Ing., 5450 Neuwied, De
JPH0781575B2 (en) * 1990-11-26 1995-08-30 有限会社新城製作所 Recessed screw and its driver bit
DE4124472A1 (en) * 1991-07-24 1993-01-28 Wuerth Adolf Gmbh & Co Kg SCREW
AT398925B (en) * 1992-03-13 1995-02-27 Vaillant Gmbh MACHINE TOOL TIGHTENING AND RELEASING A NUT
DE9207952U1 (en) * 1992-06-13 1992-09-03 Schiedel Gmbh & Co, 8000 Muenchen, De
US8347761B2 (en) * 2007-05-21 2013-01-08 Acument Intellectual Properties, Llc Drive socket design for hold and drive fastener
DE102009040952B4 (en) * 2009-09-11 2015-02-12 Audi Ag screw
GB201222688D0 (en) 2012-12-17 2013-01-30 Depuy Ireland A twist-drivable pin assembly
DE102013105810A1 (en) 2013-06-05 2014-12-11 Ejot Gmbh & Co. Kg Screw with a screw head having a drive
DE102013105812A1 (en) * 2013-06-05 2014-12-11 Ejot Gmbh & Co. Kg screw drive
US11458071B2 (en) 2017-05-11 2022-10-04 Scalpal Llc Torque enhancer device for grasping and tooling, and assemblies and uses thereof
CN108443288B (en) * 2017-02-16 2024-04-16 孙愉后 Fastening piece
CN114439836A (en) * 2022-01-24 2022-05-06 海南大学 Bolt convenient for cap recognition and cap recognition method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US662134A (en) * 1900-02-09 1900-11-20 David A Mallo Screw.
US2082748A (en) * 1936-12-15 1937-06-01 Continental Screw Company Combined socket and slotted screw
US2285461A (en) * 1939-05-26 1942-06-09 Holo Krome Screw Corp Socketed screw
US2445525A (en) * 1945-02-19 1948-07-20 Moses L Gulden Fastening device
US2764197A (en) * 1952-10-07 1956-09-25 North American Aviation Inc Driver for recessed head screws
GB1032144A (en) * 1964-03-24 1966-06-08 Allen Mfg Company Screw threaded fastener
US3604305A (en) * 1969-06-23 1971-09-14 Robertson Mfg Co Recessed screw
SE7311365L (en) * 1973-08-21 1975-02-24 Bulten Kanthal Ab
US4191228A (en) * 1978-06-07 1980-03-04 Fenton John W Tool assembly
JPS5574294A (en) * 1978-11-30 1980-06-04 Pioneer Electronic Corp Audio vibration plate and its manufacture
GB2111886A (en) * 1981-12-18 1983-07-13 Schmalkalden Werkzeug Screwdriver

Also Published As

Publication number Publication date
IT8452845V0 (en) 1984-01-17
FR2558220A1 (en) 1985-07-19
FR2558220B1 (en) 1988-12-09
NL8500096A (en) 1985-08-16
BE901515A (en) 1985-05-17
GB2153033A (en) 1985-08-14
DE8501071U1 (en) 1987-05-21
GB2153033B (en) 1988-05-11
GB8500942D0 (en) 1985-02-20
DE3501414A1 (en) 1985-07-25
SE8500173L (en) 1985-07-18

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