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EP2098336A3 - Holder for screwdriver inserts - Google Patents

Holder for screwdriver inserts Download PDF

Info

Publication number
EP2098336A3
EP2098336A3 EP09154462A EP09154462A EP2098336A3 EP 2098336 A3 EP2098336 A3 EP 2098336A3 EP 09154462 A EP09154462 A EP 09154462A EP 09154462 A EP09154462 A EP 09154462A EP 2098336 A3 EP2098336 A3 EP 2098336A3
Authority
EP
European Patent Office
Prior art keywords
outer sleeve
holder
receiving part
drive part
end portion
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.)
Withdrawn
Application number
EP09154462A
Other languages
German (de)
French (fr)
Other versions
EP2098336A2 (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
Application filed by Felo Werkzeugfabrik Holland Letz GmbH filed Critical Felo Werkzeugfabrik Holland Letz GmbH
Publication of EP2098336A2 publication Critical patent/EP2098336A2/en
Publication of EP2098336A3 publication Critical patent/EP2098336A3/en
Withdrawn legal-status Critical Current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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Clamps And Clips (AREA)

Abstract

Die Erfindung betrifft einen Halter (21) für einen Schraubendreher-Einsatz (6).The invention relates to a holder (21) for a screwdriver insert (6).

Erfindungsgemäß findet in dem Halter (21) ein Antriebsteil (1) Einsatz, bei dem ein Torsionsabschnitt (7) gebildet ist mit einer kurvenförmigen oder teilkreisförmigen Kontur, über die ein gleichmäßiger Spannungsverlauf ohne Spannungsspitzen und eine Herbeiführung einer gewünschten Torsionssteifigkeit gewährleistet werden kann. Der Schraubendreher-Einsatz (6) sowie das Antriebsteil (1) sind jeweils von einem Endbereich eines Aufnahmeteils (25) aufgenommen. Eine Außenhülse (27) ist derart mit dem Aufnahmeteil (25) verbunden, dass zumindest eine axiale Position der Außenhülse (27) gegenüber dem Aufnahmeteil (25) gesichert ist. Zwischen dem Torsionsabschnitt (7) und dem Übertragungsquerschnitt (5) ist ein zylindrischer Teilbereich (9) angeordnet. Die Außenhülse (27) besitzt einen Endbereich, der einen kleinen Spalt (36), eine Spiel- oder eine Übergangspassung mit der Mantelfläche (35) des zylindrischen Teilbereichs (9) bildet. Auf diese Weise erfolgt eine Abstützung der Außenhülse gegenüber dem Antriebsteil (1).

Figure imgaf001
According to the invention, a drive part (1) is used in the holder (21) in which a torsion section (7) is formed with a curved or part-circular contour, via which a uniform voltage curve can be ensured without voltage peaks and a desired torsional stiffness is achieved. The screwdriver insert (6) and the drive part (1) are each received by an end portion of a receiving part (25). An outer sleeve (27) is connected to the receiving part (25) such that at least one axial position of the outer sleeve (27) relative to the receiving part (25) is secured. Between the torsion section (7) and the transmission cross section (5) a cylindrical portion (9) is arranged. The outer sleeve (27) has an end portion which forms a small gap (36), a play or a transition fit with the lateral surface (35) of the cylindrical portion (9). In this way, a support of the outer sleeve relative to the drive part (1).
Figure imgaf001
EP09154462A 2008-03-05 2009-03-05 Holder for screwdriver inserts Withdrawn EP2098336A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008012658 2008-03-05

Publications (2)

Publication Number Publication Date
EP2098336A2 EP2098336A2 (en) 2009-09-09
EP2098336A3 true EP2098336A3 (en) 2011-10-05

Family

ID=40673856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09154462A Withdrawn EP2098336A3 (en) 2008-03-05 2009-03-05 Holder for screwdriver inserts

Country Status (1)

Country Link
EP (1) EP2098336A3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038210A1 (en) * 2010-10-15 2012-04-19 Wera-Werk Hermann Werner Gmbh & Co. Kg Torque transmission device for use with a rotary impact driver
DE102010038211A1 (en) * 2010-10-15 2012-04-19 Wera-Werk Hermann Werner Gmbh & Co. Kg Torque transmission device, in particular in the form of a chuck for bits
EP2471485A1 (en) * 2010-12-28 2012-07-04 Straumann Holding AG Adapter for transmitting torque to the assembly section of a dental implant
DE102012213432A1 (en) * 2012-07-31 2014-05-15 Hilti Aktiengesellschaft torsion bar
US8955418B2 (en) 2013-03-08 2015-02-17 Black & Decker Inc. Threaded fastener driving tool
DE102014208050A1 (en) * 2014-04-29 2015-10-29 Siemens Aktiengesellschaft Screwdriver blade, screwdriver and method for independently threading a screwdriver blade
US11491554B2 (en) 2019-07-18 2022-11-08 Apex Brands, Inc. Compact flexible impact bit holder
CN115243834A (en) 2019-10-01 2022-10-25 艾沛克斯品牌公司 Ratchet wrench with driving pin
EP4121242A4 (en) 2020-03-18 2024-04-24 Apex Brands, Inc. RADIAL BELT WEDGE DRIVE DEVICE
US11583989B2 (en) 2020-04-03 2023-02-21 Apex Brands, Inc. Multi-start threaded impact driving device
US11235448B1 (en) 2020-09-08 2022-02-01 Apex Brands, Inc. Overload protected impact driving device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29808062U1 (en) * 1997-06-26 1998-11-05 Stephan Witte GmbH & Co KG, 58093 Hagen Magnet holder for a screwdriver bit
DE19804081A1 (en) * 1997-06-02 1998-12-10 Werner Hermann Wera Werke Chuck for bits or the like
DE20001865U1 (en) * 2000-02-03 2000-03-30 Willi Hahn GmbH & Co KG, 78136 Schonach Chuck for tool inserts, especially screwdriver bits

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409385A (en) 1943-03-26 1946-10-15 Clarence B Pletcher Coupling
DE853280C (en) 1946-01-31 1952-10-23 Chicago Pneumatic Tool Co Motor-driven impact wrench with a tool head for gripping the screw or the like and with an impact coupling
US3744350A (en) 1971-03-11 1973-07-10 Raff Analytic Study Ass Inc Impact wrench torque limiting device
DE7403870U (en) 1973-12-14 1974-05-30 Irvator Ab Torque tool, especially torque socket wrench
DE2427352A1 (en) 1974-06-06 1975-12-18 Ulrich Schmidt Interchangeable screwdriver attachment for electric drill - fits into a cylindrical tube having hexagonal shaped internal cross-section
DE3437083C2 (en) 1984-10-05 1986-08-14 Horst-Günter 1000 Berlin Rißmann Tool, in particular screw tool with a torque that can be transmitted to a limited extent
DE3443072A1 (en) 1984-11-26 1986-05-28 Rudolf Dipl.-Ing. Höpfner (FH), 8500 Nürnberg Torque limiter
DE4143678B4 (en) 1991-02-27 2005-03-10 Holland Letz Felo Werkzeug Holder for screwdriver bits
AU686597B2 (en) 1994-01-26 1998-02-12 Vermont American Corporation Insert bit for use with a powered screwdriver
US6345560B1 (en) 1997-06-02 2002-02-12 Wera-Werk Hermann Werner Gmbh & Co. Clamping chuck for bits
US6308598B1 (en) 1998-11-23 2001-10-30 O'neil Michael J. Modular torque-limiting driver system for medical applications
DE10144990A1 (en) 2001-03-06 2003-02-27 Holland Letz Felo Werkzeug Composite bit for screwdriver is manufactured from two segments made respectively of hard pressed and sintered metal and steel
DE20313373U1 (en) 2003-08-28 2003-11-20 Lntool Industrial Co., Ltd., Taichung Compressed air system accessory has weak link section with torsion markings either side of a weak link
DE10349415B4 (en) 2003-10-21 2007-09-27 Felo-Werkzeugfabrik Holland-Letz Gmbh Method of making screwdriver bits
US7188556B1 (en) 2004-10-12 2007-03-13 Pilling Weck Incorporated Rotatable hand tool with a torque controller and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804081A1 (en) * 1997-06-02 1998-12-10 Werner Hermann Wera Werke Chuck for bits or the like
DE29808062U1 (en) * 1997-06-26 1998-11-05 Stephan Witte GmbH & Co KG, 58093 Hagen Magnet holder for a screwdriver bit
DE20001865U1 (en) * 2000-02-03 2000-03-30 Willi Hahn GmbH & Co KG, 78136 Schonach Chuck for tool inserts, especially screwdriver bits

Also Published As

Publication number Publication date
EP2098336A2 (en) 2009-09-09

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