EP0982103A1 - Dispositif de verrouillage automatique pour une broche - Google Patents

Dispositif de verrouillage automatique pour une broche Download PDF

Info

Publication number
EP0982103A1
EP0982103A1 EP98116378A EP98116378A EP0982103A1 EP 0982103 A1 EP0982103 A1 EP 0982103A1 EP 98116378 A EP98116378 A EP 98116378A EP 98116378 A EP98116378 A EP 98116378A EP 0982103 A1 EP0982103 A1 EP 0982103A1
Authority
EP
European Patent Office
Prior art keywords
locking part
spindle
locking
lock according
automatic
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
EP98116378A
Other languages
German (de)
English (en)
Other versions
EP0982103B1 (fr
Inventor
Armin Breitenmoser
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.)
CEKA Elektrowerkzeuge AG and Co KG
Original Assignee
CEKA Elektrowerkzeuge AG 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 CEKA Elektrowerkzeuge AG and Co KG filed Critical CEKA Elektrowerkzeuge AG and Co KG
Priority to EP98116378A priority Critical patent/EP0982103B1/fr
Priority to DE59801010T priority patent/DE59801010D1/de
Priority to JP11239610A priority patent/JP2000071180A/ja
Priority to US09/384,733 priority patent/US6213695B1/en
Publication of EP0982103A1 publication Critical patent/EP0982103A1/fr
Priority to HK00105513A priority patent/HK1029305A1/xx
Application granted granted Critical
Publication of EP0982103B1 publication Critical patent/EP0982103B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • 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
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/309352—Cutter spindle or spindle support
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/309352—Cutter spindle or spindle support
    • Y10T409/309408—Cutter spindle or spindle support with cutter holder

Definitions

  • the invention relates to an automatic spindle lock according to the preamble of claim 1.
  • DE 297 15 257 U1 describes a driving device for a spindle of a motor-driven, hand-held Work tools, especially a drill or impact wrench, with a non-rotatable spindle connected output part, which in both directions of rotation Spindle over sprags in the form of rollers Freewheel can be coupled with a housing-fixed ring a drive part, which is coaxial to the spindle is arranged and with the acting as a clamping body Has co-operating unlocking elements, which the clamping body when the drive part is driven release, so that the driven part of the housing Ring is uncoupled and rotatable, and with the Output part and the drive part provided torque-transmitting driving surfaces to the motor-driven Drive the spindle, in neutral position of the drive part, the driving surfaces a larger Distance from each other than that between the Unlocking element and the associated clamp body intended distance.
  • this driving device points the drive part of the unlocking element spatially separate claws that protrude into the stripping section, with each other in the respective direction of rotation facing surfaces of the claws and of Driving openings the torque-transmitting driving surfaces form.
  • the driving device are total six clamping bodies in the form of balls are provided.
  • the Structure of such an automatic spindle lock or take-along device is very expensive. This has one complex and costly assembly result, as well the drive part and the driven part six clamping bodies must be installed. With such a variety of Moving parts are also malfunctions, failures and defects the spindle lock cannot be ruled out.
  • a spindle lock with an also complex Structure also goes from, for example EP 0 761 350 A1.
  • the object of the invention is an automatic Spindle lock for hand tools of the generic type Kind in such a way that they as little as possible Items included, is easy to manufacture and works as insensitively as possible and with little wear.
  • unlocking elements one or more the drive part arranged control cams and one or several of these by rotating the Drive part sliding control cam comprises such that the locking part and the locking part by axial displacement of the locking part and / or the locking part are decoupled, with a simple structure and this results in a reliable manufacture and low-wear functioning of the automatic Spindle lock enables.
  • the drive part and the locking part concerns are pure in principle, the most varied of embodiments conceivable.
  • locking part is fixed to the housing, with openings is provided and arranged concentrically to the spindle, locking cams arranged on the locking part can be engaged by axial displacement of the locking part are.
  • a locking part provided with openings is easy to manufacture and easy to enclose assemble.
  • the locking part is integrally formed with the housing. In this Fall can be an additional assembly of the locking part completely eliminated.
  • the openings each offset by the same angle in the locking part are arranged. This enables quick Spindle lock in both directions of rotation of the spindle.
  • Locking cams and the control cams each in succession are arranged on the locking part, whereby they are offset by the same angles as the Openings in the locking part.
  • the locking part is preferably opposite one in Resetting force acting in the direction of the locking part Return spring arranged axially displaceable on the spindle. This return spring ensures that the arranged on the locking part Locking cam in the idle state of the hand tool in the Intervene in the openings of the locking part.
  • the especially with a hand tool with a Planetary gear and with a torque clutch very much can be used advantageously, it is provided that the locking between the housing and the locking part via a locking part assigned to the housing he follows.
  • the locking part is, for example, a planet carrier of a planetary gear.
  • the drive element is preferably a ring gear of the Planetary gear.
  • the openings around each have the same angle arranged in the planet carrier are. This will quickly lock in both Direction of rotation of the spindle allows.
  • the locking cams and the control cams are successive arranged on the locking part, being around the same angles are offset as the openings in the Planet carrier.
  • the axially displaceable locking part is advantageous against one towards the planet gear acting restoring force of a return spring on the housing non-rotatably arranged. Through this return spring ensured that the on the locking part Arranged locking cams in the idle state of the hand tool into the openings of the acting as a locking part Intervene planetary gear.
  • the ring gear is part of a torque clutch, the Periodicity of sprags of the torque clutch Periodicity of the control tracks or control cams corresponds.
  • control tracks arranged on the drive part can be limited by a one-sided stop. To this A precise disengagement of the locking part is indicated the stripping section and vice versa and realized undesired indentation of these two parts avoided.
  • control lanes themselves can be used in a wide variety of ways Way be trained.
  • One in particular embodiment advantageous in terms of production provides that the control tracks have a footprint, one in substantially flat slope surface with an axial direction arranged slope and a to the Sloping surface adjacent plane, perpendicular to Have plateau surface running in the axial direction.
  • a hand tool for example a drill, whose Front part is shown in Fig. 1, comprises a housing 10, in which a spindle 20 is rotatably mounted.
  • the Spindle 20 is driven by a drive shaft 30 (not shown) motor via a drive part trained ring gear 34 which is rotatably connected to the spindle 20 connected, driven.
  • This is the drive shaft 30 of the engine at its front end with teeth 32 provided in an internal toothing of the ring gear 34th intervenes.
  • An automatic spindle lock includes the Ring gear 34 has a locking part 40 fixed to the housing Shape of a locking disc and a locking part 50, against the restoring force of a return spring 60 on in the area of the locking part 50 polygonal chamfered sliding surfaces 22 of the spindle 20 is axially displaceable.
  • the spindle 20 is used for recording a tool (not shown), for example of a drill using a rotatable clamping element 26 can be fastened in a spindle opening.
  • Control cams 54 on the locking member 50th are arranged on control tracks 38 which are connected to the ring gear 34 on the side facing the locking part 50 are provided along such that the locking member 50 an axial movement against the restoring force of the Spring 60, i.e. executes away from the ring gear 34.
  • the Control tracks 38 and control cams 54 act so together that an axial movement so far takes place that the locking cam 52 out of the openings 42 are disengaged in the locking disk 40. On such disengagement occurs in both Direction of rotation of the spindle 20. In this disengaged
  • the spindle 20 is driven by the ring gear 34 Drive shaft 30 driven and can rotate freely. This state is in Fig. 1 in the lower half shown.
  • control tracks 38 arranged on the ring gear 34 a base 38a, a substantially flat one Slope surface 38b with one arranged in the axial direction Slope and one on the slope surface 38b subsequent flat, perpendicular to the axial direction Plateau surface 38c.
  • a stop cam 37 for the Control cams 54 may be provided (Fig. 2). In this Position is the axial displacement of the locking part 50 maximum.
  • the locking cams 52 are completely from the Openings 42 of the locking part 40 disengaged.
  • the locking member is 120 rotationally fixed to the housing 10 provided with projections 130 assigned and points to the drive part 110 facing side locking cams 122 and control cams 124, as can be seen in particular from FIG. 6.
  • a locking part acting planet carrier 140 Concentric to the ring gear 110 is a locking part acting planet carrier 140 arranged, which openings offset from each other by the same angle 142 has.
  • the openings 142 and the locking cams 122 are each on the planet carrier 140 and the Locking part 120 at equal angles to one another offset so that the locking cams 122 snap into place Locking part 120 in the openings 142 of the Planet carrier 140 is possible.
  • the ring gear 110 also has on its end face Guideways for sprags 114 on the opposite of Restoring force of a return spring 115 on each other or are pressed onto the guideway 113.
  • the guideways 113 so periodically on the Ring gear 110 are arranged that depending on the adjustable spring force of the return spring 115 a Torque transmission is possible.
  • control tracks 116 comprise a plane Base area 116a, a flat slope surface 110b in Circumferential direction and a further plane opposite the Base 116a in the direction of the locking part 120 axially staggered plateau surface 116c.
  • the control cam 124 slide on projections 130 guided axially Locking part 120 against the restoring force of Return spring 150 on the slope surface 116b on the Plateau surface 116c and in this way effect one Axial displacement of the locking part 120.
  • the slope the slope surfaces 116b is designed so that a Axial displacement of the locking part 120 results, which is so large that the locking cams 122 from the Openings 142 of the planet gear 140 are disengaged.
  • the spindle 20 is driven by the motor.
  • a tool with the motor stopped becomes a by rotating a clamping element 190
  • Rotational driving of the locking member 120 causes that the control cam 124 in the reverse direction from of the plateau surface 116c over the slope surface 116b the base 116a slide in which the locking cams 122 engage in the openings 142 of the planet gear 140.
  • the spindle 20 is locked, it can Tools, for example drills or screwing tools by rotating the tensioning element 190 in the intended Recordings are attached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Portable Power Tools In General (AREA)
EP98116378A 1998-08-28 1998-08-28 Dispositif de verrouillage automatique pour une broche Expired - Lifetime EP0982103B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP98116378A EP0982103B1 (fr) 1998-08-28 1998-08-28 Dispositif de verrouillage automatique pour une broche
DE59801010T DE59801010D1 (de) 1998-08-28 1998-08-28 Automatische Spindelarretierung
JP11239610A JP2000071180A (ja) 1998-08-28 1999-08-26 自動スピンドル制動装置
US09/384,733 US6213695B1 (en) 1998-08-28 1999-08-27 Automatic spindle arresting device
HK00105513A HK1029305A1 (en) 1998-08-28 2000-09-01 Automatic spindle locking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98116378A EP0982103B1 (fr) 1998-08-28 1998-08-28 Dispositif de verrouillage automatique pour une broche

Publications (2)

Publication Number Publication Date
EP0982103A1 true EP0982103A1 (fr) 2000-03-01
EP0982103B1 EP0982103B1 (fr) 2001-07-11

Family

ID=8232540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98116378A Expired - Lifetime EP0982103B1 (fr) 1998-08-28 1998-08-28 Dispositif de verrouillage automatique pour une broche

Country Status (5)

Country Link
US (1) US6213695B1 (fr)
EP (1) EP0982103B1 (fr)
JP (1) JP2000071180A (fr)
DE (1) DE59801010D1 (fr)
HK (1) HK1029305A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7066691B2 (en) 2002-01-25 2006-06-27 Black & Decker Inc. Power drill/driver
WO2009146872A1 (fr) * 2008-06-07 2009-12-10 Gardena Manufacturing Gmbh Appareil de travail motorisé
WO2014005768A1 (fr) * 2012-07-04 2014-01-09 Robert Bosch Gmbh Dispositif d'arrêt de broche
DE102012218850A1 (de) 2012-10-16 2014-04-17 Metabowerke Gmbh Spindelarretierung sowie Handwerkzeugmaschine mit Spindelarretierung

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1014558C2 (nl) * 2000-03-03 2001-09-13 Skil Europ Bv Boormachine met grendelmechanisme.
DE102006025703B4 (de) 2005-06-01 2019-11-14 Milwaukee Electric Tool Corp. Kraftwerkzeug, Antriebsanordnung und Betriebsverfahren davon
SE529929C2 (sv) * 2006-05-09 2008-01-08 Atlas Copco Tools Ab Portabelt verktyg med en frihjulslåsning av drivaxeln
SE529928C2 (sv) * 2006-05-09 2008-01-08 Atlas Copco Tools Ab Låsanordning för portabelt verktyg
DE102006000545A1 (de) * 2006-12-21 2008-06-26 Hilti Ag Werkzeuggerät mit einer Rutschkupplung
CN101204804B (zh) * 2006-12-21 2011-09-07 苏州宝时得电动工具有限公司 动力工具
DE502006007386D1 (de) * 2006-12-27 2010-08-19 Metabowerke Gmbh Elektrohandwerkzeug mit Bremseinrichtung
DE102009027951A1 (de) * 2009-07-23 2011-01-27 Robert Bosch Gmbh Handwerkzeugmaschine, insbesondere akkubetriebene Elektrohandwerkzeugmaschine
DE102011089913A1 (de) * 2011-12-27 2013-06-27 Robert Bosch Gmbh Handwerkzeugvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244203A2 (fr) * 1986-04-29 1987-11-04 Kango Limited Outil motorisé portatif
DE29715257U1 (de) * 1997-08-26 1997-12-04 Atlas Copco Electric Tools Mitnahmevorrichtung

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2943500A1 (de) * 1979-10-27 1981-05-07 Robert Bosch Gmbh, 7000 Stuttgart Werkzeugspannvorrichtung
US4489525A (en) * 1983-08-11 1984-12-25 Black & Decker Inc. Replaceable spindle lock system
US4650375A (en) * 1985-12-02 1987-03-17 James W. Millsap Drill braking system
DE3610820A1 (de) * 1986-04-01 1987-10-15 Fein C & E Motorgetriebene maschine mit drehmomenteinstellung, insbesondere elektrisches handwerkzeug
DE3644441A1 (de) * 1986-12-24 1988-07-07 Bosch Gmbh Robert Spanneinrichtung zum loesbaren befestigen eines werkzeuges, insbesondere einer scheibe
US4915555A (en) * 1989-06-07 1990-04-10 Smothers Clarence W Power drill having drill chuck tightener
DE4100412A1 (de) * 1991-01-09 1992-07-16 Bosch Gmbh Robert Elektrische handdrehwerkzeugmaschine, insbesondere handkreissaege
ES2066512T3 (es) * 1991-07-05 1995-03-01 Fein C & E Maquina herramienta portatil.
US5564872A (en) * 1994-03-21 1996-10-15 Veil; Wilfried Implement for machine tools and process for generating electric power in one such implement
DE4445598C2 (de) 1994-12-20 1998-04-09 Atlas Copco Elektrowerkzeuge Handgeführte Werkzeugmaschine
DE4445597A1 (de) 1994-12-20 1996-06-27 Atlas Copco Elektrowerkzeuge Handgeführte Werkzeugmaschine
DE19527193A1 (de) * 1995-07-26 1997-01-30 Hilti Ag Schraubgerät
JP3675527B2 (ja) 1995-08-03 2005-07-27 有限会社村技術綜合研究所 出力軸のロック装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244203A2 (fr) * 1986-04-29 1987-11-04 Kango Limited Outil motorisé portatif
DE29715257U1 (de) * 1997-08-26 1997-12-04 Atlas Copco Electric Tools Mitnahmevorrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7066691B2 (en) 2002-01-25 2006-06-27 Black & Decker Inc. Power drill/driver
WO2009146872A1 (fr) * 2008-06-07 2009-12-10 Gardena Manufacturing Gmbh Appareil de travail motorisé
WO2014005768A1 (fr) * 2012-07-04 2014-01-09 Robert Bosch Gmbh Dispositif d'arrêt de broche
CN104411472A (zh) * 2012-07-04 2015-03-11 罗伯特·博世有限公司 主轴止动装置
US9855649B2 (en) 2012-07-04 2018-01-02 Robert Bosch Gmbh Spindle locking device
DE102012218850A1 (de) 2012-10-16 2014-04-17 Metabowerke Gmbh Spindelarretierung sowie Handwerkzeugmaschine mit Spindelarretierung

Also Published As

Publication number Publication date
EP0982103B1 (fr) 2001-07-11
HK1029305A1 (en) 2001-03-30
JP2000071180A (ja) 2000-03-07
US6213695B1 (en) 2001-04-10
DE59801010D1 (de) 2001-08-16

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