EP1157785A2 - Dispositif pour connecter un outil avec un entraínement - Google Patents

Dispositif pour connecter un outil avec un entraínement Download PDF

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Publication number
EP1157785A2
EP1157785A2 EP01112523A EP01112523A EP1157785A2 EP 1157785 A2 EP1157785 A2 EP 1157785A2 EP 01112523 A EP01112523 A EP 01112523A EP 01112523 A EP01112523 A EP 01112523A EP 1157785 A2 EP1157785 A2 EP 1157785A2
Authority
EP
European Patent Office
Prior art keywords
tool
drive
coupling
spring washer
coupling element
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Withdrawn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
EP01112523A
Other languages
German (de)
English (en)
Other versions
EP1157785A3 (fr
Inventor
Andreas Dierolf
Frank Kollmar
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.)
Adolf Wuerth GmbH and Co KG
Original Assignee
Adolf Wuerth GmbH and Co KG
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 Adolf Wuerth GmbH and Co KG filed Critical Adolf Wuerth GmbH and Co KG
Publication of EP1157785A2 publication Critical patent/EP1157785A2/fr
Publication of EP1157785A3 publication Critical patent/EP1157785A3/fr
Withdrawn legal-status Critical Current

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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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • 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
    • 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
    • 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
    • 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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means
    • Y10T408/953—Clamping jaws
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means
    • Y10T408/957—Tool adapter

Definitions

  • the invention relates to a device for connecting a tool to a mechanical rotary drive.
  • the tool can, for example, be a Trade bit, or also drilling / cutting tools such as Countersink, tap, Reamers.
  • the problem with tools of this type is that the Alignment between the workpiece to be rotated, for example one Screw, and the tool is not always correct. There are a number of Suggestions to solve this problem.
  • a flexible socket wrench is known (DE 36 24 686), in which the Pivotability is ensured by pins that are transverse to the longitudinal axis of the Tool run.
  • a screwing tool with an articulated head part is also known (DE 94 03 845).
  • a tubular spring made of rubber is used.
  • a device for connecting screwdriver bits with a drive device known (DE 41 43 218) Furthermore, a device for connecting screwdriver bits with a drive device known (DE 41 43 218). Here a torsion clutch is provided, which makes an angular movement between drive part and output part.
  • the invention has for its object a device for connecting a To create tool with a mechanical rotary drive, which compared to the State of the art Advantages with regard to the long service life of the tool and / or the screw.
  • the invention proposes a device with the Features mentioned claim 1 and a use according to claim 11.
  • the spring washer coupling is a component that is made in one piece is built up from a multitude of parallel annular disks, which with the help are connected by webs. The webs run along one Diameter. The webs between two panes are opposite the webs between the next two panes offset by 90 °.
  • Such Spring washer clutch is known for example from EP 318 669. This Spring washer clutch is designed to correct alignment errors to compensate for the axes, which are both angular errors as well Transfer errors can act.
  • the drive element and the output element are held such that they are always arranged coaxially.
  • the spring washer clutch is not used to compensate for alignment errors the axes of rotation. It is used only in the direction of rotation to cause slight flexibility of the coupling element, and the input to reduce the shocks mentioned when the screwing movement suddenly stops.
  • At least one inlet end of the coupling element has a polygonal shape, for example a hexagonal shape, which in one correspondingly complementary recess of the drive element and / or Output element engages.
  • the spring washer clutch also has suspension properties in the axial direction on.
  • the invention proposes that the coupling element Can have axial play.
  • a possible tool that is connected to the device with the rotary drive is a screwdriver bit for a mechanical screwdriver. Here it goes in primarily to mitigate sudden torque surges.
  • the device can also be used in a drill Find.
  • a drill Find it makes sense to use the coupling element described, for example, in to integrate a drill chuck.
  • the Coupling element in one piece with the drive element and the output element is trained. This reduces the number of components of the Connecting element. In addition, the device is then more simply constructed.
  • the spaces between the parallel annular disks of the spring washer clutch completely or partially with a more or less hard elastomer material are filled in, for example sprayed out.
  • Spraying with a soft Elastomer material does not change the spring properties of the spring washer clutch, can prevent dirt from entering. Splashing can do that happen that the outside is covered with an elastomer layer, so that the slits are no longer noticeable.
  • FIG. 1 shows a device in a highly schematic, simplified form, with which a tool, for example a bit, is connected to an electric screwdriver can be.
  • the device contains a drive part 1 with a shaft 2, the either clamped in a chuck or connected directly to the drive can.
  • the drive part 1 has an inner recess 3 that is open toward one end face on a hexagonal in the area of the bottom 4 of the recess 3 Has cross section. In the area further towards the open front side the recess 3 is circular.
  • An output part 5 is arranged coaxially to the drive part 1, which is also a for has an inner recess 6 which is open towards the end.
  • the two Inner recesses 3, 6 are arranged in mutual extension and go in the case of assembled parts.
  • This inner recess 6 has a hexagonal cross section in the region of its base 7, to which the then an area with a circular cross section connects.
  • Coupling element 11 used in the two merging inner recesses 3 and 6 is one Coupling element 11 used, which is described in more detail below.
  • the axial extent of the coupling element 11 is slightly smaller than the distance of the Bottoms 4, 7 of the two inner recesses 3, 6. This has the coupling element 11 a certain axial play.
  • the upper end of the coupling element 11 in FIG. 1 has a cross section the corresponding area of the inner recess 3 corresponding hexagonal cross section. This engages with this end of engagement 12 Coupling element 11 in the inner recess 3 of the drive part 1 in the direction of rotation on.
  • the coupling element 11 also has at the opposite end Engagement end 13 with a hexagonal cross section on the hexagonal Cross section of the inner recess 6 is adapted in this area. Also with this engaging end 13, the coupling element 11 rotatably engages in the driven part 5 a.
  • the spring washer clutch has an axial bore 14, see Figure 2. It consists of a plurality of spring washers 15, one have a small mutual distance in the axial direction.
  • the spring washers are connected to one another by webs 16, see again the section in FIG. 2, which run in the radial direction from the axial bore 14 to the edge. Different expressed, the webs 16 run along a diameter.
  • the webs 16 between two panes are opposite the webs between one of the two Disks and the next spring washer 15 offset by 90 °. To this A flexibility in the axial direction and a deflectability are thus formed. In the arrangement of FIG. 1, however, neither of the compliances is used Made use of. The only thing that is important for the application presented here is slight but very controllable flexibility in the direction of rotation.
  • the Coupling element acts here as a torsion spring.
  • FIG. 3 shows an embodiment of a connecting element in which Drive part, output part and coupling element are integrally formed.
  • the Drive part 21 is designed as a hexagonal shaft, which in a corresponding Inserted a tool and locked there by a clamping element can be, which engages in a constriction 22 of the shaft 21.
  • the coupling element 23 then adjoins the shaft 21, which as Spring washer clutch is formed.
  • the structure was already in Figure 1 described.
  • the driven part 24 then adjoins the coupling element 23, that as a cylindrical body with an axial, open towards the end face 25 Recess 26 is formed.
  • the recess 26 has a hexagonal Cross-section so that a bit can be inserted into it.
  • a magnet 28 is inserted, which serves the Magnetize the bit itself, thereby holding a screw to the bit.
  • a circumferential groove can be made in the recess 26 be provided, in which an O-ring 29 is inserted. It is inserted when the Bits compressed so that it then determines the bit in a force-locking manner.
  • the connecting element according to the invention can the spaces 30 between the individual spring washers by Plastic material, for example made of elastomer, can be injected. This will achieved that no dirt, chips or the like in the spaces between the Spring washer clutch penetrate and if necessary in their characteristics can influence.
  • the spraying with the Plastic material not shown. The spraying can also be done in such a way that the entire outer contour of the coupling element 23 is covered.
  • Figure 4 shows a further embodiment, which is part of a automatic drill.
  • a drill chuck 31 arranged, with the help of a drill between several Jaws 32 can be clamped.
  • the drill chuck is via a coupling element 33, which is designed as a spring washer clutch, with a plate 34 connected.
  • a coupling element 33 which is designed as a spring washer clutch, with a plate 34 connected.
  • three journals 35 are formed, which are used for storage of gears can serve.
  • These gears form part of one Planetary gear with which the drill chuck 31 is driven in rotation.
  • this connecting element there is again a one-piece between the Drive part, in this case the disc 34, the coupling element 33 and one Part of the chuck in which the jaws 32 are mounted.
  • the coupling element with the Spring washer clutch is used only to peak torque when If the stop flattened, the spring washer coupling can be used to Embodiments according to Figures 3 and 4 also an angle compensation and / or one Allow axis offset.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP01112523A 2000-05-26 2001-05-23 Dispositif pour connecter un outil avec un entraínement Withdrawn EP1157785A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10026205A DE10026205A1 (de) 2000-05-26 2000-05-26 Vorrichtung zum Verbinden eines Werkzeugs mit einem Antrieb
DE10026205 2000-05-26

Publications (2)

Publication Number Publication Date
EP1157785A2 true EP1157785A2 (fr) 2001-11-28
EP1157785A3 EP1157785A3 (fr) 2002-06-19

Family

ID=7643709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01112523A Withdrawn EP1157785A3 (fr) 2000-05-26 2001-05-23 Dispositif pour connecter un outil avec un entraínement

Country Status (3)

Country Link
US (1) US6640911B2 (fr)
EP (1) EP1157785A3 (fr)
DE (1) DE10026205A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2055433A3 (fr) * 2007-11-02 2010-09-08 Compass Corporation Utilisation d'un tournevis
WO2013050469A1 (fr) * 2011-10-07 2013-04-11 Ringfeder Power-Transmission Gmbh Accouplement compensateur pour la transmission de couples
EP2754534A3 (fr) * 2013-01-10 2018-02-28 HILTI Aktiengesellschaft Tige de torsion

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8095425B2 (en) * 2000-12-05 2012-01-10 Larry Morrow System, method, and architecture for implementing a business infiniti sharing residual with subscribers and/or affinity partners
GB0101014D0 (en) * 2001-01-15 2001-02-28 Neyrfor Weir Ltd Improved downhole tool
US20050050707A1 (en) * 2003-09-05 2005-03-10 Scott Joshua Lynn Tip tool
US20070072686A1 (en) * 2005-09-29 2007-03-29 Peot David G Torsion shock absorber
US7793560B2 (en) * 2007-09-11 2010-09-14 Black & Decker Inc. Transmission and variable radially expanding spring clutch assembly
US8109183B2 (en) * 2008-06-06 2012-02-07 Black & Decker Inc. Impact resistant tool bit and tool bit holder
US8540580B2 (en) * 2009-08-12 2013-09-24 Black & Decker Inc. Tool bit or tool holder for power tool
US8292150B2 (en) 2010-11-02 2012-10-23 Tyco Healthcare Group Lp Adapter for powered surgical devices
US10926383B2 (en) * 2013-03-14 2021-02-23 Milwaukee Electric Tool Corporation Impact tool
US10093005B2 (en) * 2014-07-15 2018-10-09 Chervon (Hk) Limited Bit accessory and bit assembly
JP6869536B2 (ja) 2017-05-17 2021-05-12 エヌティーツール株式会社 工具ホルダ
JP6872237B2 (ja) * 2017-07-21 2021-05-19 株式会社永木精機 操作棒の連結構造
US11491554B2 (en) * 2019-07-18 2022-11-08 Apex Brands, Inc. Compact flexible impact bit holder
CN115243834B (zh) 2019-10-01 2025-09-16 艾沛克斯品牌公司 带驱动销的棘轮扳手
EP4121242B1 (fr) 2020-03-18 2026-04-15 Apex Brands, Inc. Dispositif d'entraînement à percussion à coin à bande radiale
US11583989B2 (en) 2020-04-03 2023-02-21 Apex Brands, Inc. Multi-start threaded impact driving device
TWI815685B (zh) * 2022-09-30 2023-09-11 林英模 工具接桿

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DE3144901C2 (de) * 1981-11-12 1983-12-29 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Elektrisch isolierte Verbindung zwischen zwei gleichachsig angeordneten, stabförmigen Elementen aus Metall insbesondere Schraubendreher
US4536113A (en) * 1982-03-15 1985-08-20 Hatfield Jim J Automatic jaw control for reversible power tool
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DE3800394A1 (de) 1986-07-09 1989-07-27 Fraunhofer Ges Forschung Vorrichtung zum durchfuehren von schraubvorgaengen
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JPS63173859A (ja) * 1987-01-10 1988-07-18 Sanden Corp 主軸を片持支持した回転斜板式圧縮機
EP0318669B1 (fr) * 1987-12-01 1994-01-12 VMA-NC Mess- und Antriebstechnik GmbH Accouplement à rondelles élastiques
DE4143218C3 (de) * 1991-02-27 2003-03-20 Holland Letz Felo Werkzeug Vorrichtung zur Verbindung von Schraubendreher-Einsätzen
EP0981443B1 (fr) * 1997-05-14 2001-07-18 Koenig & Bauer Aktiengesellschaft Dispositif d'entrainement pour composant tournant d'une rotative
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2055433A3 (fr) * 2007-11-02 2010-09-08 Compass Corporation Utilisation d'un tournevis
WO2013050469A1 (fr) * 2011-10-07 2013-04-11 Ringfeder Power-Transmission Gmbh Accouplement compensateur pour la transmission de couples
CN104011415A (zh) * 2011-10-07 2014-08-27 弹簧圈动力传输有限公司 传递转矩用的补偿式耦联器
CN104011415B (zh) * 2011-10-07 2016-08-24 弹簧圈动力传输有限公司 传递转矩用的补偿式耦联器
DE102011115095B4 (de) 2011-10-07 2021-07-22 Ringfeder Power-Transmission Gmbh Ausgleichskupplung zur Übertragung von Drehmomenten
EP2754534A3 (fr) * 2013-01-10 2018-02-28 HILTI Aktiengesellschaft Tige de torsion

Also Published As

Publication number Publication date
DE10026205A1 (de) 2001-11-29
EP1157785A3 (fr) 2002-06-19
US6640911B2 (en) 2003-11-04
US20020000334A1 (en) 2002-01-03

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