EP1422027A3 - Screw driving tool, in particular screwdriver bit - Google Patents

Screw driving tool, in particular screwdriver bit Download PDF

Info

Publication number
EP1422027A3
EP1422027A3 EP03028939A EP03028939A EP1422027A3 EP 1422027 A3 EP1422027 A3 EP 1422027A3 EP 03028939 A EP03028939 A EP 03028939A EP 03028939 A EP03028939 A EP 03028939A EP 1422027 A3 EP1422027 A3 EP 1422027A3
Authority
EP
European Patent Office
Prior art keywords
driving tool
screw driving
screwdriver bit
section
front part
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
EP03028939A
Other languages
German (de)
French (fr)
Other versions
EP1422027B1 (en
EP1422027A2 (en
Inventor
Horst Holland-Letz
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.)
Felo Werkzeugfabrik Holland Letz GmbH
Original Assignee
Felo Werkzeugfabrik Holland Letz GmbH
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 DE20218102U external-priority patent/DE20218102U1/en
Priority claimed from DE20304246U external-priority patent/DE20304246U1/en
Priority claimed from DE20310364U external-priority patent/DE20310364U1/en
Application filed by Felo Werkzeugfabrik Holland Letz GmbH filed Critical Felo Werkzeugfabrik Holland Letz GmbH
Publication of EP1422027A2 publication Critical patent/EP1422027A2/en
Publication of EP1422027A3 publication Critical patent/EP1422027A3/en
Application granted granted Critical
Publication of EP1422027B1 publication Critical patent/EP1422027B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/002—Screwdrivers characterised by material or shape of the tool bit characterised by material used or surface finishing
    • 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)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Powder Metallurgy (AREA)
  • Connection Of Plates (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Dowels (AREA)

Abstract

The screwdriver tool has a sintered metal powder profiled front part with base section (5) and profiled section with transition section inbetween which has first curved transition faces (15) connecting grooved bases (11) to flat sections (16), and second curved transition faces (17a,17b) which connect the flat sections sideways to the web flanks (8a) Independent claim describes front part for screwdriver tool used as screwdriver insert.
EP03028939A 2002-11-22 2003-11-24 Screw driving tool, in particular screwdriver bit Expired - Lifetime EP1422027B1 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE20218102U DE20218102U1 (en) 2002-11-22 2002-11-22 Bit for screwdriver has facetted drive section with shaft and driver to formed by radial flanges with defined surfaces
DE20218102U 2002-11-22
DE20304246U 2003-03-14
DE20304246U DE20304246U1 (en) 2003-03-14 2003-03-14 Screwdriver insert, has penetration section with reduced length for cooperating with internal profile in screw
DE20309294 2003-06-13
DE20309294U 2003-06-13
DE20310364U 2003-07-05
DE20310364U DE20310364U1 (en) 2003-06-13 2003-07-05 Screwdriver tool has profiled front part with transition section between base and profiled section with first and second curved transition faces to increase torsion strength

Publications (3)

Publication Number Publication Date
EP1422027A2 EP1422027A2 (en) 2004-05-26
EP1422027A3 true EP1422027A3 (en) 2005-08-24
EP1422027B1 EP1422027B1 (en) 2007-07-18

Family

ID=32234253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03028939A Expired - Lifetime EP1422027B1 (en) 2002-11-22 2003-11-24 Screw driving tool, in particular screwdriver bit

Country Status (4)

Country Link
EP (1) EP1422027B1 (en)
AT (1) ATE367243T1 (en)
DE (1) DE50307690D1 (en)
ES (1) ES2291587T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4990235B2 (en) * 2008-07-16 2012-08-01 株式会社ベッセル工業 Screwdriver tool
TW201420284A (en) * 2013-09-06 2014-06-01 Great Metal Production Co Ltd E Structure and manufacturing method for screwdriver driving portion
US11059162B2 (en) 2017-05-17 2021-07-13 Milwaukee Electric Tool Corporation Screwdriver
USD855433S1 (en) 2017-08-09 2019-08-06 Milwaukee Electric Tool Corporation Screwdriver
TWI784842B (en) * 2021-12-15 2022-11-21 洪昭敏 screwdriver head structure

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046837A (en) * 1934-07-03 1936-07-07 Phillips Screw Co Means for uniting a screw with a driver
DE959360C (en) * 1943-01-19 1957-03-07 Guest Keen & Nettlefolds Midla screwdriver
US3393722A (en) * 1966-07-19 1968-07-23 George W. Windham Bit end of tool
US5461952A (en) * 1992-05-14 1995-10-31 Textron Inc. Back-side taper wedging drive system
DE29621782U1 (en) * 1996-12-16 1998-04-09 Wera-Werk Hermann Werner Gmbh & Co, 42349 Wuppertal Screwdriver bit
EP0947716A2 (en) * 1998-04-03 1999-10-06 Fairchild Holding Corp. Fastener system with cross-slot recess and cross-slot bit
DE19923855A1 (en) * 1999-05-25 2001-01-04 Werner Hermann Wera Werke Security screw and associated screwing tool
US6223634B1 (en) * 1997-10-03 2001-05-01 Phillips Screw Company Recessed head fastener and driver systems
WO2001066312A1 (en) * 2000-03-06 2001-09-13 Felo-Werkzeugfabrik Holland-Letz Gmbh Screwdriver insets

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046837A (en) * 1934-07-03 1936-07-07 Phillips Screw Co Means for uniting a screw with a driver
DE959360C (en) * 1943-01-19 1957-03-07 Guest Keen & Nettlefolds Midla screwdriver
US3393722A (en) * 1966-07-19 1968-07-23 George W. Windham Bit end of tool
US5461952A (en) * 1992-05-14 1995-10-31 Textron Inc. Back-side taper wedging drive system
DE29621782U1 (en) * 1996-12-16 1998-04-09 Wera-Werk Hermann Werner Gmbh & Co, 42349 Wuppertal Screwdriver bit
US6223634B1 (en) * 1997-10-03 2001-05-01 Phillips Screw Company Recessed head fastener and driver systems
EP0947716A2 (en) * 1998-04-03 1999-10-06 Fairchild Holding Corp. Fastener system with cross-slot recess and cross-slot bit
DE19923855A1 (en) * 1999-05-25 2001-01-04 Werner Hermann Wera Werke Security screw and associated screwing tool
WO2001066312A1 (en) * 2000-03-06 2001-09-13 Felo-Werkzeugfabrik Holland-Letz Gmbh Screwdriver insets

Also Published As

Publication number Publication date
ES2291587T3 (en) 2008-03-01
DE50307690D1 (en) 2007-08-30
EP1422027B1 (en) 2007-07-18
ATE367243T1 (en) 2007-08-15
EP1422027A2 (en) 2004-05-26

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