SE8207220L - Screwdriver tools - Google Patents

Screwdriver tools

Info

Publication number
SE8207220L
SE8207220L SE8207220A SE8207220A SE8207220L SE 8207220 L SE8207220 L SE 8207220L SE 8207220 A SE8207220 A SE 8207220A SE 8207220 A SE8207220 A SE 8207220A SE 8207220 L SE8207220 L SE 8207220L
Authority
SE
Sweden
Prior art keywords
screwdriver tools
screwdriver
functional
tools
complementarily
Prior art date
Application number
SE8207220A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8207220D0 (en
Inventor
H Reinhardt
Original Assignee
Schmalkalden Werkzeug
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 Schmalkalden Werkzeug filed Critical Schmalkalden Werkzeug
Publication of SE8207220D0 publication Critical patent/SE8207220D0/en
Publication of SE8207220L publication Critical patent/SE8207220L/en

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

A functional portion is formed, complementarily with a screw head recess, with longitudinal grooves 4 of trapezoidal cross-section having functional lateral surfaces 5 extending radially of the longitudinal axis 6 of the screwdriver stem. <IMAGE>
SE8207220A 1981-12-18 1982-12-17 Screwdriver tools SE8207220L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD23591381 1981-12-18

Publications (2)

Publication Number Publication Date
SE8207220D0 SE8207220D0 (en) 1982-12-17
SE8207220L true SE8207220L (en) 1983-06-19

Family

ID=5535538

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8207220A SE8207220L (en) 1981-12-18 1982-12-17 Screwdriver tools

Country Status (2)

Country Link
GB (1) GB2111886A (en)
SE (1) SE8207220L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8452845V0 (en) * 1984-01-17 1984-01-17 Fossati Onorina SCREW SUITABLE FOR PRECISION TIGHTENING TORQUES
GB2221004A (en) * 1988-07-21 1990-01-24 Europ Ind Services Limited Tamperproof fastener, punch and driving tool
JP4031418B2 (en) * 2003-09-12 2008-01-09 株式会社スズキ螺子製作所 Screw and screw driver
WO2005047716A1 (en) * 2003-11-14 2005-05-26 Katsuyuki Totsu Screw with stabilized strength, combination with driver bit, and header punch for producing screw with stabilized strength
US7111531B1 (en) * 2005-04-11 2006-09-26 Kabushiki Kaisha Suzuki Rashi Seisakusho Screw and screwdriver
EP3115153A1 (en) * 2015-07-07 2017-01-11 IPP Industries Sarl Screwing tool and corresponding screw

Also Published As

Publication number Publication date
SE8207220D0 (en) 1982-12-17
GB2111886A (en) 1983-07-13

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