EP1881883A1 - Motor-driven machine-tool with a locking/releasing device for the spindle - Google Patents

Motor-driven machine-tool with a locking/releasing device for the spindle

Info

Publication number
EP1881883A1
EP1881883A1 EP05750161A EP05750161A EP1881883A1 EP 1881883 A1 EP1881883 A1 EP 1881883A1 EP 05750161 A EP05750161 A EP 05750161A EP 05750161 A EP05750161 A EP 05750161A EP 1881883 A1 EP1881883 A1 EP 1881883A1
Authority
EP
European Patent Office
Prior art keywords
spindle
component
machine housing
tool
tool according
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
EP05750161A
Other languages
German (de)
French (fr)
Other versions
EP1881883B1 (en
Inventor
Jörg Seyerle
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.)
Metabowerke GmbH and Co
Original Assignee
Metabowerke GmbH and Co
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 Metabowerke GmbH and Co filed Critical Metabowerke GmbH and Co
Publication of EP1881883A1 publication Critical patent/EP1881883A1/en
Application granted granted Critical
Publication of EP1881883B1 publication Critical patent/EP1881883B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the invention relates to a motor-operated tool device, in particular hand tool, battery operated, such as drill, percussion drill, hammer drill or screwdriver, with ' a machine housing, a drive motor, a drivable by the drive motor spindle, wherein between the drive motor and spindle a lock / release device with an engine side Drive part, a spindle-side output member, the latter is rotatably or integrally connected to the spindle, and at least one clamping body is provided, and with a connectable to the spindle chuck for clamping a tool, the spindle acting upon initiation of a feed from the drive motor Torque relative to the machine housing can be fixed and is freely rotatable when initiating a torque acting from the drive motor in the direction of the spindle relative to the machine housing.
  • Tool devices of this type with a locking / releasing device for the spindle have become widely known, for example by DE 199 42 271 Al, DE 103 38 608 B, DE 103 36 637 B, DE 103 16 889, DE 196 08 499 Al, EP 0 982 103 Bl.
  • the locking / releasing device When switching off the motor drive by running the tool chuck with it inserted Tool, the locking / releasing device is activated, so goes with the setting of the spindle, that the clamp body is brought into a blocking clamping position, a noise and a shock load associated, which is disadvantageously audible but also noticeable to the user.
  • the present invention has set itself the task of countering this.
  • the clamping body does not start directly against an absolutely fixed housing component and abruptly fixed, or abruptly the drive spindle or its output part relative to the machine housing sets, but it is limited to the machine housing with the interposition of the damping means movable component provided, against which the clamping body starts.
  • the coupling of the component with the machine housing by the mentioned damping means may be formed in any desired manner, wherein an arrangement of the damping means in the radial direction between the component and the machine housing has proved to be expedient. It is also conceivable and advantageous that a plurality of damping means are provided at different locations, such as at diametrically opposite locations or offset by 120 ° in the circumferential direction points.
  • the component comprises a circumferentially effective hard stop, which limits by abutment against the machine housing or a component of the machine housing, a mobility of the component. Also, several such attacks can be provided for the uniform introduction of forces.
  • the component has at least one extension which extends in the radial direction and which can cooperate with the machine housing or a component of the machine housing in a manner limiting the rotation.
  • the invention proves to be particularly advantageous in the case of battery-operated electric hand tool devices, in particular those with a planetary gear, since the problem described in the introduction is particularly pronounced here.
  • the figure is a schematic representation of an inventively designed lock / release device for a hand tool.
  • the single figure illustrates schematically the principle of the inventively embodied locking / releasing device (spindle lock) in a hand tool.
  • a spindle 2 on which a tool chuck, not shown, for receiving a tool can be arranged rotationally fixed.
  • the spindle 2 is a spindle-side driven part or is rotatably and rigidly connected to such a spindle-side driven part 4.
  • a clamping body 6 is provided which is received in a space between the spindle 2 and a circumferentially closed component 8, which forms a machine-fixed brake ring 10.
  • Reference numeral 12 designates a machine housing or a component of the machine housing of the tool device.
  • the component 8, which acts as a brake ring 10, comprises a radial projection 14 which is somewhat larger in a circumferential direction formed recess 16 of the machine housing 12 protrudes.
  • a damping means 18 of an elastomeric material 20 is provided in the radial direction between the projection 14 and the machine housing 12.
  • the damping means 18 is received in complementary shaped recesses 22 in the projection 20, and 24 in the machine housing 12. It forms a limited deformable coupling between the component 8 and the machine housing 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Braking Arrangements (AREA)
  • Drilling And Boring (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Springs (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The invention relates to a motor-driven or battery-powered machine-tool, in particular a hand machine-tool, such as a drill, a percussion drill, a hammer drill or a screwdriver. Said machine-tool comprises a machine casing, a driving motor, a spindle (2) which can be driven by the driving motor, whereby a locking/releasing device is provided between the driving motor and the spindle (2), which comprises a motor-sided driving element, a spindle-sided driven element (4), rotationally fixed to or integrally joined to said spindle (2) and at least one clamping body (6), and said machine-tool comprises a chuck for clamping a tool, which can be connected to the spindle (2), whereby said spindle (2) can be locked in relation to the machine casing (12) by application of a torque, acting from the chuck in the direction of the driving motor and can rotate freely in relation to the machine casing (12) by application of a torque, acting from the driving motor in the direction of the spindle (2). In order to make said machine-tool more convenient to operate, the clamping body (6) abuts against a component (8) during locking of the spindle (2), which is connected to the machine casing (2) through a damping means (18) with limited deformation.

Description

Titel: Motorbetriebenes Werkzeuggerät mit einer Sperr- /Freigabeeinrichtung für die SpindelTitle: Motorized tool unit with a lock / release device for the spindle
BesehreibungBesehreibung
Die Erfindung betrifft ein motorbetriebenes Werkzeuggerät, insbesondere Handwerkzeuggerät, auch akkubetrieben, wie Bohrmaschine, Schlagbohrmaschine, Bohrhammer oder Schrauber, mit' einem Maschinengehäuse, einem Antriebsmotor, einer durch den Antriebsmotor antreibbaren Spindel, wobei zwischen Antriebsmotor und Spindel eine Sperr- /Freigabeeinrichtung mit einem motorseitigen Antriebsteil, einem spindelseitigen Abtriebsteil, welchletzteres drehfest oder einstückig mit der Spindel verbunden ist, und wenigstens einem Klemmkörper vorgesehen ist, und mit einem mit der Spindel verbindbaren Futter zum Einspannen eines Werkzeugs, wobei die Spindel bei Einleitung eines vom Futter in Richtung auf den Antriebsmotor wirkenden Drehmoments gegenüber dem Maschinengehäuse festsetzbar ist und bei Einleitung eines vom Antriebsmotor in Richtung auf die Spindel wirkenden Drehmoments gegenüber dem Maschinengehäuse frei drehbar ist.The invention relates to a motor-operated tool device, in particular hand tool, battery operated, such as drill, percussion drill, hammer drill or screwdriver, with ' a machine housing, a drive motor, a drivable by the drive motor spindle, wherein between the drive motor and spindle a lock / release device with an engine side Drive part, a spindle-side output member, the latter is rotatably or integrally connected to the spindle, and at least one clamping body is provided, and with a connectable to the spindle chuck for clamping a tool, the spindle acting upon initiation of a feed from the drive motor Torque relative to the machine housing can be fixed and is freely rotatable when initiating a torque acting from the drive motor in the direction of the spindle relative to the machine housing.
Werkzeuggeräte dieser Art mit einer Sperr- /Freigabeeinrichtung für die Spindel (automatischer Spindelstopp) sind vielfach bekannt geworden, beispielsweise durch DE 199 42 271 Al, DE 103 38 608 B, DE 103 36 637 B, DE 103 16 889, DE 196 08 499 Al, EP 0 982 103 Bl.Tool devices of this type with a locking / releasing device for the spindle (automatic spindle stop) have become widely known, for example by DE 199 42 271 Al, DE 103 38 608 B, DE 103 36 637 B, DE 103 16 889, DE 196 08 499 Al, EP 0 982 103 Bl.
Wenn beim Abschalten des motorischen Antriebs durch Nachlaufen des Werkzeugfutters mit darin eingesetztem Werkzeug die Sperr-/Freigabeeinrichtung aktiviert wird, so geht mit dem Festsetzen der Spindel dadurch, dass der Klemmkörper in eine blockierende Klemmlage gebracht wird, eine Geräuschentwicklung und eine Stoßbelastung einher, die für den Benutzer in nachteiliger Weise hörbar aber auch spürbar ist.When switching off the motor drive by running the tool chuck with it inserted Tool, the locking / releasing device is activated, so goes with the setting of the spindle, that the clamp body is brought into a blocking clamping position, a noise and a shock load associated, which is disadvantageously audible but also noticeable to the user.
Die vorliegende Erfindung hat sich zur Aufgabe gesetzt, dem zu begegnen.The present invention has set itself the task of countering this.
Diese Aufgabe wird bei einem Werkzeuggerät der genannten Art erfiπdungsgemäß dadurch gelöst, dass der Klemmkörper einem Festsetzen der Spindel gegen ein Bauteil anläuft, •welches über ein beschränkt verformbares Dämpfungsmittel mit dem Maschinengehäuse verbunden istThis object is achieved in a power tool of the type mentioned erfiπdungsgemäß characterized in that the clamping body starts a setting of the spindle against a component, • which is connected via a deformable damping means limited to the machine housing
Es wird also erfindungsgemäß vorgeschlagen, dass der Klemmkörper nicht direkt gegen ein absolut gehäusefestes Bauteil anläuft und schlagartig festgesetzt wird, bzw. schlagartig die Antriebsspindel bzw. deren Abtriebsteil gegenüber dem Maschinengehäuse festsetzt, sondern es wird ein gegenüber dem Maschinengehäuse unter Zwischenordnung des Dämpfungsmittels begrenzt bewegliches Bauteil vorgesehen, gegenüber dem der Klemmkörper anläuft.It is therefore proposed according to the invention that the clamping body does not start directly against an absolutely fixed housing component and abruptly fixed, or abruptly the drive spindle or its output part relative to the machine housing sets, but it is limited to the machine housing with the interposition of the damping means movable component provided, against which the clamping body starts.
Das Bauteil ist gegenüber dem Maschinengehäuse vorzugsweise begrenzt verdrehbar und zwar vorzugsweise in beide Drehrichtungen. Es ist insbesondere ringförmig. Weiter wird vorgeschlagen, dass das Bauteil von dem Maschinengehäuse oder einer Komponente des Maschinengehäuses (begrenzt) drehbar gelagert ist. Die Begrenzung erfolgt in vorteilhafter Weise durch das beschränkt verformbare Dämpfungsmittel . Das Dämpfungsmittel kann in an sich beliebiger Weise ausgebildet sein. Es könnte sich hierbei um ein Federmittel handeln. Vorteilhafter Weise wird ein elastisches Material, insbesondere ein Gummikörper verwandt. Das Dämpfungsmittel kann vorteilhafter Weise eine Shore-Härte von 30 bis 80 Shore A aufweisen.The component is preferably limited rotatable relative to the machine housing, preferably in both directions of rotation. It is especially annular. It is further proposed that the component of the machine housing or a component of the machine housing (limited) is rotatably mounted. The limitation is advantageously achieved by the limited deformable damping means. The damping means may be formed in any desired manner. It could be a spring device. Advantageously, an elastic material, in particular a rubber body is used. The damping means may advantageously have a Shore hardness of 30 to 80 Shore A.
Die Kopplung des Bauteils mit dem Maschinengehäuse durch das erwähnte Dämpfungsmittel kann in an sich beliebiger Weise ausgebildet sein, wobei sich eine Anordnung des Dämpfungsmittels in radialer Richtung zwischen dem Bauteil und -dem Maschinengehäuse als zweckmäßig erwiesen hat. Es ist auch denkbar und vorteilhaft, dass mehrere Dämpfungsmittel an verschiedenen Stellen, etwa an diametral gegenüberliegenden Stellen oder an um 120° in Umfangsrichtung versetzten Stellen vorgesehen sind.The coupling of the component with the machine housing by the mentioned damping means may be formed in any desired manner, wherein an arrangement of the damping means in the radial direction between the component and the machine housing has proved to be expedient. It is also conceivable and advantageous that a plurality of damping means are provided at different locations, such as at diametrically opposite locations or offset by 120 ° in the circumferential direction points.
Des weiteren erweist es sich als besonders vorteilhaft, wenn zusätzlich zu der Kopplung durch das Dämpfungsmittel das Bauteil einen in Umfangsrichtung wirksamen harten Anschlag umfasst, welcher durch Anlage gegen das Maschinengehäuse oder eine Komponente des Maschinengehäuses eine Bewegbarkeit des Bauteils begrenzt. Auch mehrere solcher Anschläge können zur gleichmäßigen Einleitung von Kräften vorgesehen werden.Furthermore, it proves to be particularly advantageous if in addition to the coupling by the damping means, the component comprises a circumferentially effective hard stop, which limits by abutment against the machine housing or a component of the machine housing, a mobility of the component. Also, several such attacks can be provided for the uniform introduction of forces.
Es erweist sich auch als vorteilhaft, wenn das Bauteil wenigstens einen in radialer Richtung erstreckten Ansatz aufweist, der drehbegrenzend mit dem Maschinengehäuse oder einer Komponente des Maschinengehäuses zusammenwirken kann.It also proves to be advantageous if the component has at least one extension which extends in the radial direction and which can cooperate with the machine housing or a component of the machine housing in a manner limiting the rotation.
Insgesamt kann bei einer erfindungsgemäßen Ausbildung eine harte Stillsetzung der Werkzeugspindel, die als laut und unangenehm empfunden werden kann, durch eine kaum mehr spür- und hörbare gedämpfte Stillsetzung der Spindel ersetzt werden. Damit wird auch das Risiko verringert, dass sich ein Werkzeugfutter unbeabsichtigt löst.Overall, in a design according to the invention, a hard shutdown of the tool spindle, which can be perceived as loud and unpleasant, by a barely perceptible and audible damped shutdown of the spindle be replaced. This also reduces the risk of a tool chuck unintentionally releasing.
Es sei auch darauf hingewiesen, dass sich die Erfindung gerade bei akkubetriebenen- Elektrohandwerkzeuggeräten, insbesondere bei solchen mit einem Planetengetriebe, als besonders vorteilhaft erweist, da sich das eingangs beschriebene Problem hier besonders äußert.It should also be pointed out that the invention proves to be particularly advantageous in the case of battery-operated electric hand tool devices, in particular those with a planetary gear, since the problem described in the introduction is particularly pronounced here.
Weitere Merkmale, Einzelheiten der Vorteile der Erfindung ergeben sich aus den beigefügten Patentansprüchen und aus der zeichnerischen Darstellung und nachfolgenden Beschreibung der Erfindung. In der Zeichnung zeigtFurther features, details of the advantages of the invention will become apparent from the appended claims and from the drawings and the following description of the invention. In the drawing shows
die Figur eine schematische Darstellung einer erfindungsgemäß ausgebildeten Sperr- /Freigabeeinrichtung für ein Handwerkzeuggerät.the figure is a schematic representation of an inventively designed lock / release device for a hand tool.
Die einzige Figur verdeutlicht schematisch das Prinzip der erfindungsgemäß ausgebildeten Sperr-/Freigabeeinrichtung (Spindelarretierung) bei einem Handwerkzeuggerät. Schematisch angedeutet ist eine Spindel 2, an der ein nicht dargestelltes Werkzeugfutter zur Aufnahme eines Werkzeugs drehfest angeordnet werden kann. Die Spindel 2 stellt ein spindelseitiges Abtriebsteil dar oder ist drehfest und starr mit einem solchen spindelseitigen Abtriebsteil 4 verbunden. Zwischen Spindel 2 bzw. spindelseitigem Abtriebsteil 4 ist ein Klemmkörper 6 vorgesehen, der in einem Raum zwischen Spindel 2 und einem in Umfangsrichtung geschlossenen Bauteil 8, welches einen maschinenfesten Bremsring 10 bildet, aufgenommen ist. Mit dem Bezugszeichen 12 ist ein Maschinengehäuse oder eine Komponente des Maschinengehäuses des Werkzeuggeräts bezeichnet. Das als Bremsring 10 wirkende Bauteil 8 umfasst einen radialen Vorsprung 14, der in eine in Umfangsrichtung etwas größer ausgebildete Ausnehmung 16 des Maschinengehäuses 12 einragt. In radialer Richtung zwischen dem Vorsprung 14 und dem Maschinengehäuse 12 ist ein Dämpfungsmittel 18 aus einem elastomeren Material 20 vorgesehen. Das Dämpfungsmittel 18 ist in komplementär ausgeformten Ausnehmungen 22 in dem Vorsprung 20, bzw. 24 in dem Maschinengehäuse 12 aufgenommen. Es bildet eine beschränkt verformbare Kopplung zwischen dem Bauteil 8 und dem Maschinengehäuse 12. Wenn durch Anlaufen des Klemmkörpers 6 bei Einleitung eines Drehmoments von der Spindel 2 in Richtung auf den nicht dargestellten Antriebsmotor (Pfeil 26) ein Drehmoment auf das Bauteil 8 in Richtung des Pfeils 28 ausgeübt wird, so wird das Dämpfungsmittel 18 verformt und dabei auch auf Scherung beansprucht. Es lässt jedoch eine geringfügige Bewegung des Bauteils 28 in Richtung des Pfeils 28 zu. Eine solche geringfügige Bewegung wird jedoch durch in Umfangsrichtung wirksame Anschlagsflächen 30 zwischen dem Vorsprung 14 und der Ausnehmung 16 definitiv begrenzt.The single figure illustrates schematically the principle of the inventively embodied locking / releasing device (spindle lock) in a hand tool. Schematically indicated is a spindle 2, on which a tool chuck, not shown, for receiving a tool can be arranged rotationally fixed. The spindle 2 is a spindle-side driven part or is rotatably and rigidly connected to such a spindle-side driven part 4. Between spindle 2 and spindle-side output part 4, a clamping body 6 is provided which is received in a space between the spindle 2 and a circumferentially closed component 8, which forms a machine-fixed brake ring 10. Reference numeral 12 designates a machine housing or a component of the machine housing of the tool device. The component 8, which acts as a brake ring 10, comprises a radial projection 14 which is somewhat larger in a circumferential direction formed recess 16 of the machine housing 12 protrudes. In the radial direction between the projection 14 and the machine housing 12, a damping means 18 of an elastomeric material 20 is provided. The damping means 18 is received in complementary shaped recesses 22 in the projection 20, and 24 in the machine housing 12. It forms a limited deformable coupling between the component 8 and the machine housing 12. If by starting the clamping body 6 upon initiation of torque from the spindle 2 in the direction of the drive motor, not shown (arrow 26), a torque on the component 8 in the direction of the arrow 28 is exercised, the damping means 18 is deformed and thereby subjected to shear. However, it allows for a slight movement of the component 28 in the direction of the arrow 28. However, such slight movement is definitely limited by circumferentially effective abutment surfaces 30 between the projection 14 and the recess 16.
Durch die Vorsehung des Dämpfungsmittels 18 kann eine geräuscharme und weitgehend stoßfreie, jedoch gleichwohl sehr rasche Stillsetzung der Spindel erreicht werden. By the provision of the damping means 18, a quiet and largely shock-free, but nevertheless very rapid shutdown of the spindle can be achieved.

Claims

Patentansprüche claims
1. Motorbetriebenes Werkzeuggerät, insbesondere Handwerkzeuggerät, auch akkubetrieben, wie Bohrmaschine, Schlagbohrmaschine, Bohrhammer oder Schrauber, mit einem Maschinengehäuse, einem Antriebsmotor, einer durch den Antriebsmotor antreibbaren Spindel (2) , wobei zwischen Antriebsmotor und Spindel (2) eine Sperr-/Freigabeeinrichtung mit einem motorseitigen Antriebsteil, einem spindelseitigen Abtriebsteil (4), weichletzteres drehfest oder einstückig mit der Spindel (2) verbunden ist, und wenigstens einem Klemmkörper (6) vorgesehen ist, und mit einem mit der Spindel (2) verbindbaren Futter zum Einspannen eines Werkzeugs, wobei die Spindel (2) bei Einleitung eines vom Futter in Richtung auf den Antriebsmotor wirkenden Drehmoments gegenüber dem Maschinengehäuse (12) festsetzbar ist und bei Einleitung eines vom Antriebsmotor in Richtung auf die Spindel (2) wirkenden Drehmoments gegenüber dem Maschinengehäuse (12) frei drehbar ist, dadurch gekennzeichnet, dass der Klemmkörper (β) beim Festsetzen der Spindel (2) gegen ein Bauteil (8) anläuft, welches über ein beschränkt verformbares Dämpfungsmittel (18) mit dem Maschinengehäuse (12) verbunden ist.1. Motor-operated tool device, in particular hand tool, battery operated, such as drill, percussion drill, hammer drill or screwdriver, with a machine housing, a drive motor, a drivable by the drive motor spindle (2), wherein between the drive motor and spindle (2) a lock / release device with a motor-side drive part, a spindle-side driven part (4), weichletzteres rotatably or integrally with the spindle (2) is connected, and at least one clamping body (6) is provided, and with the spindle (2) connectable chuck for clamping a tool in that the spindle (2) can be fixed with respect to the machine housing (12) when a torque acting on the drive motor is initiated, and upon introduction of a torque acting on the spindle (2) from the drive motor relative to the machine housing (12) is rotatable, characterized in that the clamping body (β) when setting the spindle (2) against a component (8) starts, which is connected via a limited deformable damping means (18) with the machine housing (12).
2. Werkzeuggerät nach Anspruch 1, dadurch gekennzeichnet, dass das Bauteil (8) gegenüber dem Maschinengehäuse2. Tool according to claim 1, characterized in that the component (8) relative to the machine housing
(12) begrenzt verdrehbar ist. (12) is limited twistable.
3. Werkzeuggerät nach Anspruch 2, dadurch gekennzeichnet, dass das Bauteil (8) gegenüber dem Maschinengehäuse (12) in beiden Richtungen begrenzt verdrehbar ist.3. Tool according to claim 2, characterized in that the component (8) relative to the machine housing (12) is limited in both directions rotatable.
4.. Werkzeuggerät nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das Bauteil (8) ringförmig ist.4. .. Tool according to claim 1, 2 or 3, characterized in that the component (8) is annular.
5. Werkzeuggerät nach Anspruch 2, 3 oder 4, dadurch gekennzeichnet, dass das Bauteil (8) durch das Maschinengehäuse oder durch eine Komponente des Maschinengehäuses (12) begrenzt drehbar gelagert ist.5. Tool according to claim 2, 3 or 4, characterized in that the component (8) by the machine housing or by a component of the machine housing (12) is mounted rotatably limited.
6. Werkzeuggerät nach einem der vorstehenden Ansprüche', dadurch gekennzeichnet, dass das Dämpfungsmittel (18) einen Gummikörper (20) umfasst.6. Tool according to one of the preceding claims', characterized in that the damping means (18) comprises a rubber body (20).
7. Werkzeuggerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Dämpfungsmittel (18) eine Shore-Härte von 30 - 80 Shore A aufweist.7. Tool according to one of the preceding claims, characterized in that the damping means (18) has a Shore hardness of 30 - 80 Shore A.
8. Werkzeuggerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Dämpfungsmittel (18) beim Festsetzen auf Scherung beansprucht ist.8. Tool according to one of the preceding claims, characterized in that the damping means (18) is claimed during setting to shear.
9. Werkzeuggerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Dämpfungsmittel (18) in radialer Richtung zwischen dem Bauteil (8) und dem Maschinengehäuse (12) angeordnet ist.9. Tool according to one of the preceding claims, characterized in that the damping means (18) in the radial direction between the component (8) and the machine housing (12) is arranged.
10. Werkzeuggerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Bauteil (8) einen in ümfangsrichtung wirksamen Anschlag (30) umfasst, der durch Anlage gegen das Maschinengehäuse (12) eine Bewegbarkeit des Bauteils (8) begrenzt.10. Tool according to one of the preceding claims, characterized in that the component (8) comprises an effective in ümfangsrichtung stop (30) which limits by abutment against the machine housing (12) a mobility of the component (8).
11. Werkzeuggerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Bauteil (8) wenigstens einen in radialer Richtung erstreckten Ansatz (14) aufweist, der drehbegrenzend mit dem Maschinengehäuse (12) zusammenwirkt. 11. Tool according to one of the preceding claims, characterized in that the component (8) at least one extending in the radial direction Approach (14) which cooperates drehbegrenzend with the machine housing (12).
EP05750161A 2005-05-14 2005-05-14 Motor-driven machine-tool with a locking/releasing device for the spindle Not-in-force EP1881883B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2005/005308 WO2006122571A1 (en) 2005-05-14 2005-05-14 Motor-driven machine-tool with a locking/releasing device for the spindle

Publications (2)

Publication Number Publication Date
EP1881883A1 true EP1881883A1 (en) 2008-01-30
EP1881883B1 EP1881883B1 (en) 2009-04-29

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Country Status (6)

Country Link
EP (1) EP1881883B1 (en)
CN (1) CN101175610A (en)
AT (1) ATE430000T1 (en)
DE (1) DE502005007214D1 (en)
ES (1) ES2323426T3 (en)
WO (1) WO2006122571A1 (en)

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CN105500296A (en) * 2015-12-31 2016-04-20 宁波中旺工具有限公司 Electric screw driver with vibration reduction separating piece

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DE19942271C2 (en) * 1999-09-04 2002-01-31 Metabowerke Kg Power tool with a locking mechanism and a safety coupling
JP2002137179A (en) * 2000-08-04 2002-05-14 Hitachi Koki Co Ltd Electric tool
US6702090B2 (en) * 2001-03-14 2004-03-09 Milwaukee Electric Tool Corporation Power tool and spindle lock system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006122571A1 *

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CN101175610A (en) 2008-05-07
EP1881883B1 (en) 2009-04-29
DE502005007214D1 (en) 2009-06-10
WO2006122571A1 (en) 2006-11-23
ES2323426T3 (en) 2009-07-15
ATE430000T1 (en) 2009-05-15

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