DE50307690D1 - Screwing tool, especially screwdriver insert - Google Patents

Screwing tool, especially screwdriver insert

Info

Publication number
DE50307690D1
DE50307690D1 DE50307690T DE50307690T DE50307690D1 DE 50307690 D1 DE50307690 D1 DE 50307690D1 DE 50307690 T DE50307690 T DE 50307690T DE 50307690 T DE50307690 T DE 50307690T DE 50307690 D1 DE50307690 D1 DE 50307690D1
Authority
DE
Germany
Prior art keywords
screwing tool
section
screwdriver insert
front part
screwdriver
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.)
Expired - Lifetime
Application number
DE50307690T
Other languages
German (de)
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
Application granted granted Critical
Publication of DE50307690D1 publication Critical patent/DE50307690D1/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)
  • Dowels (AREA)
  • Powder Metallurgy (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Connection Of Plates (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.
DE50307690T 2002-11-22 2003-11-24 Screwing tool, especially screwdriver insert Expired - Lifetime DE50307690D1 (en)

Applications Claiming Priority (4)

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
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
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 (1)

Publication Number Publication Date
DE50307690D1 true DE50307690D1 (en) 2007-08-30

Family

ID=32234253

Family Applications (1)

Application Number Title Priority Date Filing Date
DE50307690T Expired - Lifetime DE50307690D1 (en) 2002-11-22 2003-11-24 Screwing tool, especially screwdriver insert

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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL42923C (en) * 1934-07-03
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
US5291811A (en) * 1992-05-14 1994-03-08 Textron Inc. Back-side taper wedging drive system
DE29621782U1 (en) * 1996-12-16 1998-04-09 Werner Hermann Wera Werke Screwdriver bit
US6223634B1 (en) * 1997-10-03 2001-05-01 Phillips Screw Company Recessed head fastener and driver systems
EP0947716A3 (en) * 1998-04-03 2000-08-23 Fairchild Holding Corp. Fastener system with cross-slot recess and cross-slot bit
DE19923855C2 (en) * 1999-05-25 2003-06-26 Werner Hermann Wera Werke Security screw and associated screwing tool
DE10190814D2 (en) * 2000-03-06 2003-03-27 Holland Letz Felo Werkzeug Screwdriver Bits

Also Published As

Publication number Publication date
EP1422027A3 (en) 2005-08-24
ES2291587T3 (en) 2008-03-01
ATE367243T1 (en) 2007-08-15
EP1422027A2 (en) 2004-05-26
EP1422027B1 (en) 2007-07-18

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