EP2268456A1 - Adapter part for a machine tool - Google Patents

Adapter part for a machine tool

Info

Publication number
EP2268456A1
EP2268456A1 EP09732559A EP09732559A EP2268456A1 EP 2268456 A1 EP2268456 A1 EP 2268456A1 EP 09732559 A EP09732559 A EP 09732559A EP 09732559 A EP09732559 A EP 09732559A EP 2268456 A1 EP2268456 A1 EP 2268456A1
Authority
EP
European Patent Office
Prior art keywords
adapter
housing
adapter part
part according
functional 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.)
Granted
Application number
EP09732559A
Other languages
German (de)
French (fr)
Other versions
EP2268456B1 (en
Inventor
Justus Lamprecht
Sinisa Andrasic
Marcus Schuller
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2268456A1 publication Critical patent/EP2268456A1/en
Application granted granted Critical
Publication of EP2268456B1 publication Critical patent/EP2268456B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B25F5/02—Construction of casings, bodies or handles
    • 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
    • B25F5/006—Vibration damping means

Definitions

  • the invention relates to an adapter part for a
  • Machine tool in particular a hand tool and a correspondingly configured machine tool.
  • Hand tool machines such as drills, saws, angle grinders or the like have as drive to an electric motor whose rotor shaft is rotatably connected via a gear unit with a tool shaft as a support of a tool.
  • a gear unit with a tool shaft as a support of a tool.
  • considerable mechanical loads can occur which originate, on the one hand, from the vibrations of the drive motor, the gear unit and the tool shaft and the tool and, on the other hand, result from the machining of the workpiece, for example due to impacts or impacts.
  • the vibrations and vibrations can also lead to a significant noise pollution.
  • the invention has for its object to provide with simple measures a machine tool, in particular a hand tool, with additional functionality. It should be in particular at the option of the user a vibration damping element in a simple manner and remove. This object is achieved with the features of claim 1.
  • the dependent claims indicate expedient developments.
  • the adapter part according to the invention is suitable for use for a machine tool, in particular a hand tool such as an angle grinder, wherein the housing of the machine tool is at least two parts and the two separate housing parts are coupled via a connecting device.
  • the adapter part is inserted at the option of the user between the two housing parts and has for this purpose at least one adapter-connecting element, which is adapted to a housing-connecting element on one of the two housing parts.
  • This makes it possible, without additional measures such as the use of auxiliary tools to insert the adapter part between the housing parts and connect via the adapter connecting element with the relevant housing parts.
  • the adapter-connecting element is expediently the same structure as the housing-connecting element, the connection between the housing part and the adapter part in a similar manner as the direct connection between the housing parts in the event that no adapter part is used.
  • a functional element is integrated, via which the desired functionality is generated.
  • the functional element is according to a first advantageous embodiment as
  • Vibration damping element formed and used to reduce vibration in the machine tool.
  • functional elements with other functionalities come into consideration, for example, a lighting unit to illuminate the work area, a measuring device, a control unit or a display unit for displaying various state or Operating variables of the machine tool such as the temperature.
  • cooling modules or fan units may also be provided as functional elements.
  • the adapter part serves only for extension without additional function; In this case, the functional element forms an extension part.
  • the functional element is designed as an independent component, which is designed separately from the adapter connecting element, so that a simple replacement of the functional element is also possible within the adapter part.
  • an adapter ring is provided on the adapter part, on which the adapter connecting element is formed.
  • the adapter ring is also the carrier of the functional element.
  • a section of the functional element extends axially beyond the receiving groove and at least partially covers the outer lateral surface of the adapter ring.
  • the adapter ring is formed elastically deformable.
  • This embodiment is particularly suitable for a functional element, which is designed as a vibration damping element, since on the inherent elasticity of the adapter ring deformation due to the - A -
  • vibrations or shocks is achieved and these deformations are reduced in the vibration damping element.
  • the adapter ring is designed in such a way that the adapter-connecting element is arranged in the region of an end face of the adapter part on the radial outer side of the adapter ring.
  • a latching of the adapter ring is achieved at this end face with the associated housing part.
  • adapter parts To combine adapter parts and to assemble a total adapter part.
  • two or more, mutually identically constructed adapter parts are assembled axially one behind the other and inserted between the two housing parts of the machine tool.
  • the individual adapter parts can have either identical or different functional elements.
  • adapter connection elements on both end sides of the adapter part, which correspond with the respectively assigned housing connection parts.
  • an adapter connection element only on one end side of the adapter part and to provide an adapter compensation element on the opposite end side, which is not brought into connection engagement with the facing housing connection element, but cup-shaped the relevant housing connection element engages, whereby a compact design is achieved in the axial direction.
  • the connection on this end face is expediently carried out via a separate connection device, for example via a screw connection.
  • FIG. 1 is a schematic representation of the two-part housing of a power tool, with a handle housing and a motor housing in the assembled position,
  • Fig. 3 shows the housing of the power tool with pulled apart housing parts, wherein the space between the housing parts for receiving a
  • FIG. 6 is a side view of the housing of FIG .. 5
  • the housing 2 of the power tool 1 for example, a grinder such as an angle grinder, divided into two and consists of two detachably mounted to each other housing parts 2a and 2b, of which the first housing part 2a a handle housing and the second housing part 2b forms a motor housing for receiving an electric drive motor.
  • the two housing parts 2a and 2b abut each other at a separating edge, which is designated by the reference numeral 3.
  • the connection between the housing parts 2a and 2b is preferably done manually and without auxiliary tool, as well as the release of the two housing parts 2a and 2b.
  • housing connecting elements which are designed as housing latching elements 4 and 5 and respectively arranged on the housing parts 2a and 2b in the region of the end face facing one another latch into one another.
  • the connection is made by joining in the radial direction, so that in the axial direction, which at the same time the Lender standing. Mounting direction represents a positive connection between the housing locking elements 4 and 5 consists.
  • the handle housing 2a is divided into two parts in the axial direction, which opens up the possibility of each approaching the two halves of the handle housing in the radial direction to the housing latching element 5 on the motor housing 2b.
  • the housing locking element 5 on the housing part 2b is designed as an external thread, the housing locking element 4 on the housing part 2a accordingly as an internal thread. But it is also possible locking with only axial Verrastgraphy without rotation about the longitudinal axis of the power tool.
  • the housing parts 2 a and 2 b of the power tool 1 are shown axially remote from each other, creating a gap 6 between the housing parts, in which an adapter part can be used.
  • This adapter part is designated by reference numeral 7 in FIG. 4 and comprises two axially spaced, parallel adapter rings 8a and 8b and a functional element 9 received between the adapter rings 8a, 8b.
  • the adapter part 7 can be inserted into the interspace 6 as required, whereby the overall length of the power tool 1 increases.
  • the functional element 9 takes on different tasks.
  • the functional element 9 is designed as a vibration damping element, which ensures a reduction of the vibration load in the housing of the power tool.
  • a functional element as a carrier of a lighting unit or a version with sensors, a control unit, a display unit or the like, are also possible.
  • the adapter part 7 assumes a force-transmitting function between the two housing parts 2a and 2b in the inserted state.
  • the functional element 9 as a vibration damping element
  • the between the housing parts 2a and 2b extending adapter rings 8a, 8b has a minimum of inherent elasticity, so that within narrow limits, a relative movement between the housing parts 2a and 2b may occur is damped by the functional element 9.
  • an embodiment of the two adapter rings 8a, 8b made of a hard plastic is also possible, wherein the functional element 9, which consists of soft, damping material, axially connects the two adapter rings 8a and 8b.
  • the adapter ring 8b which faces the housing part 2a, is provided in the region of its free axial end side with an adapter latching element 11, which is constructed in a corresponding manner as the housing latching element 4 on the housing part 2a, as a radially inwardly directed latching device is formed with a plurality of circumferential, parallel ratchet teeth or as a thread.
  • the adapter part 7 can be brought to the housing part 2a in a connecting or locking position, in the same manner as in a direct connection of the two housing parts together. As shown in FIG.
  • an adapter compensation element 10 is provided on the adapter ring 8a on the side facing the housing part 2b, which is cup-shaped and the housing latching element 5 overlaps, so that in the axial direction, a compact design is given.
  • the housing latching element 5 is designed as a radially outwardly extending latching device, for example as an external thread. A force-transmitting connection between the adapter compensation element 10 and the housing latching element 5 does not take place; rather, the connection between the
  • Adapter part 7 and the housing part 2b made via an additional connection means 12, which is designed for example as a screw connection and may comprise a plurality ververschiebte around the circumference screws, with which the adapter ring 8a is screwed to the housing part 2b.
  • the adapter compensation element 10 is designed as an adapter connecting element, which is adapted to the associated housing connecting element 5.
  • the connecting device 12 is not required.
  • the functional element 9 has an axially projecting lip 9a, which covers the adapter ring 8a in the region of the adapter compensation element 10 up to the end face. Since the axially opposite adapter locking element 11 is overlapped in the mounted position of the housing locking element 4, thus covering the functional element 9, the gap in which the adapter part 7 is inserted in the axial direction completely.
  • FIG. 5 and 6 a further embodiment is shown in which two individual adapter parts 7 are inserted axially one behind the other and are connected to the two housing parts 2a and 2b.
  • the Functional element 9 in the two adapter parts may possibly differ.

Abstract

The invention relates to an adapter part for a machine tool. Said adapter part is designed to be inserted between two housing parts and comprises an adapter connection element that corresponds to a housing connection element on a housing part.

Description

BeSchreibungDescription
Titeltitle
Adapterteil für eine WerkzeugmaschineAdapter part for a machine tool
Die Erfindung bezieht sich auf ein Adapterteil für eineThe invention relates to an adapter part for a
Werkzeugmaschine, insbesondere eine Handwerkzeugmaschine und auf eine dementsprechend ausgestaltete Werkzeugmaschine.Machine tool, in particular a hand tool and a correspondingly configured machine tool.
Stand der TechnikState of the art
Handwerkzeugmaschinen wie Bohrer, Sägen, Winkelschleifer oder dergleichen weisen als Antrieb einen Elektromotor auf, dessen Rotorwelle über eine Getriebeeinheit drehbar mit einer Werkzeugwelle als Träger eines Werkzeuges verbunden ist. Im Betrieb der Handwerkzeugmaschine können erhebliche mechanische Belastungen auftreten, die zum einen von den Schwingungen des Antriebsmotors, der Getriebeeinheit und der Werkzeugwelle sowie des Werkzeuges stammen und zum anderen von der Bearbeitung des Werkstückes herrühren, beispielsweise durch Stöße oder Schläge. Die Schwingungen und Vibrationen können auch zu einer erheblichen Geräuschbelastung führen.Hand tool machines such as drills, saws, angle grinders or the like have as drive to an electric motor whose rotor shaft is rotatably connected via a gear unit with a tool shaft as a support of a tool. During operation of the power tool, considerable mechanical loads can occur which originate, on the one hand, from the vibrations of the drive motor, the gear unit and the tool shaft and the tool and, on the other hand, result from the machining of the workpiece, for example due to impacts or impacts. The vibrations and vibrations can also lead to a significant noise pollution.
Offenbarung der ErfindungDisclosure of the invention
Der Erfindung liegt die Aufgabe zugrunde, mit einfachen Maßnahmen eine Werkzeugmaschine, insbesondere eine Handwerkzeugmaschine, mit zusätzlicher Funktionalität auszustatten. Es soll insbesondere nach Wahl des Anwenders ein Schwingungsdämpfungselement in einfacher Weise ein- und auszubauen sein. Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an.The invention has for its object to provide with simple measures a machine tool, in particular a hand tool, with additional functionality. It should be in particular at the option of the user a vibration damping element in a simple manner and remove. This object is achieved with the features of claim 1. The dependent claims indicate expedient developments.
Das erfindungsgemäße Adapterteil eignet sich zur Anwendung für eine Werkzeugmaschine, insbesondere eine Handwerkzeugmaschine wie zum Beispiel einen Winkelschleifer, wobei das Gehäuse der Werkzeugmaschine mindestens zweigeteilt ist und die beiden separaten Gehäuseteile über eine Verbindungseinrichtung gekoppelt sind. Das Adapterteil ist nach Wahl des Anwenders zwischen die beiden Gehäuseteile einzufügen und weist hierfür mindestens ein Adapter-Verbindungselement auf, das an ein Gehäuse-Verbindungselement an einem der beiden Gehäuseteile angepasst ist. Dadurch ist es möglich, ohne zusätzliche Maßnahmen wie die Verwendung von Hilfswerkzeugen das Adapterteil zwischen die Gehäuseteile einzufügen und über das Adapter- Verbindungselement mit dem betreffenden Gehäuseteile zu verbinden. Da das Adapter-Verbindungselement zweckmäßigerweise gleich aufgebaut ist wie das Gehäuse-Verbindungselement, erfolgt auch die Verbindung zwischen dem Gehäuseteil und dem Adapterteil in entsprechender Weise wie die direkte Verbindung zwischen den Gehäuseteilen für den Fall, dass kein Adapterteil eingesetzt wird.The adapter part according to the invention is suitable for use for a machine tool, in particular a hand tool such as an angle grinder, wherein the housing of the machine tool is at least two parts and the two separate housing parts are coupled via a connecting device. The adapter part is inserted at the option of the user between the two housing parts and has for this purpose at least one adapter-connecting element, which is adapted to a housing-connecting element on one of the two housing parts. This makes it possible, without additional measures such as the use of auxiliary tools to insert the adapter part between the housing parts and connect via the adapter connecting element with the relevant housing parts. Since the adapter-connecting element is expediently the same structure as the housing-connecting element, the connection between the housing part and the adapter part in a similar manner as the direct connection between the housing parts in the event that no adapter part is used.
Diese Ausführung ermöglicht einen schnellen Ein- und Ausbau des Adapterteils, wobei verschiedene Funktionalitäten im Adapterteil realisiert sein können. In das Adapterteil ist ein Funktionselement integriert, über das die gewünschte Funktionalität erzeugt wird. Das Funktionselement ist gemäß einer ersten vorteilhaften Ausführung alsThis design allows a quick installation and removal of the adapter part, wherein various functionalities can be implemented in the adapter part. In the adapter part, a functional element is integrated, via which the desired functionality is generated. The functional element is according to a first advantageous embodiment as
Schwingungsdämpfungselement ausgebildet und dient zur Schwingungsreduzierung in der Werkzeugmaschine. Zusätzlich oder alternativ kommen aber auch Funktionselemente mit anderen Funktionalitäten in Betracht, beispielsweise eine Beleuchtungseinheit, um den Arbeitsbereich auszuleuchten, eine Messeinrichtung, eine Steuereinheit oder auch eine Anzeigeeinheit zur Anzeige diverser Zustands- oder Betriebsgrößen der Werkzeugmaschine wie beispielsweise die Temperatur. Gegebenenfalls können als Funktionselemente auch Kühlmodule oder Gebläseeinheiten vorgesehen sein. Gemäß einer besonders einfachen Ausführung dient das Adapterteil lediglich zur Verlängerung ohne darüber hinausgehende Funktion; in diesem Fall bildet das Funktionselement ein Verlängerungsteil.Vibration damping element formed and used to reduce vibration in the machine tool. Additionally or alternatively, however, functional elements with other functionalities come into consideration, for example, a lighting unit to illuminate the work area, a measuring device, a control unit or a display unit for displaying various state or Operating variables of the machine tool such as the temperature. Optionally, cooling modules or fan units may also be provided as functional elements. According to a particularly simple embodiment, the adapter part serves only for extension without additional function; In this case, the functional element forms an extension part.
Gemäß einer vorteilhaften Ausführung ist das Funktionselement als ein eigenständiges Bauteil ausgebildet, welches separat von dem Adapter-Verbindungselement ausgeführt ist, so dass auch innerhalb des Adapterteils ein einfacher Austausch des Funktionselementes möglich ist.According to an advantageous embodiment, the functional element is designed as an independent component, which is designed separately from the adapter connecting element, so that a simple replacement of the functional element is also possible within the adapter part.
Gemäß einer weiteren vorteilhaften Ausführung ist am Adapterteil ein Adapterring vorgesehen, an dem das Adapter- Verbindungselement ausgebildet ist. Der Adapterring ist zugleich Träger des Funktionselementes. Vorzugsweise sind zwei beabstandete, parallel angeordnete Adapterringe angeordnet, zwischen denen sich das Funktionselement befindet, wobei das Funktionselement zweckmäßigerweise die beiden Adapterringe miteinander verbindet, so dass die beiden Adapterringe und das Funktionselement eine bauliche Einheit bilden. Über diese Ausführung lässt sich in Achsrichtung eine optimale Dämpfung erzielen .According to a further advantageous embodiment, an adapter ring is provided on the adapter part, on which the adapter connecting element is formed. The adapter ring is also the carrier of the functional element. Preferably, two spaced, parallel arranged adapter rings, between which the functional element is located, wherein the functional element expediently connects the two adapter rings together, so that the two adapter rings and the functional element form a structural unit. This version can be achieved in the axial direction optimum damping.
Es kann zweckmäßig sein, dass ein Abschnitt des Funktionselementes sich axial über die Aufnahmenut hinaus erstreckt und zumindest teilweise die äußere Mantelfläche des Adapterringes überdeckt. Dadurch wird im zusammengebauten Zustand eine Überdeckung im Gehäuse in dem das Adapterteil aufnehmenden Bereich erreicht.It may be expedient that a section of the functional element extends axially beyond the receiving groove and at least partially covers the outer lateral surface of the adapter ring. As a result, an overlap in the housing in the adapter part receiving area is achieved in the assembled state.
Gemäß einer weiteren vorteilhaften Ausführung ist der Adapterring elastisch verformbar ausgebildet. Diese Ausführung eignet sich insbesondere für ein Funktionselement, das als Schwingungsdämpfungselement ausgeführt ist, da über die Eigenelastizität des Adapterringes eine Verformung aufgrund der - A -According to a further advantageous embodiment of the adapter ring is formed elastically deformable. This embodiment is particularly suitable for a functional element, which is designed as a vibration damping element, since on the inherent elasticity of the adapter ring deformation due to the - A -
auftretenden Schwingungen oder Stöße erreicht wird und diese Verformungen im Schwingungsdämpfungselement reduziert werden.occurring vibrations or shocks is achieved and these deformations are reduced in the vibration damping element.
Gemäß einer weiteren zweckmäßigen Ausführung ist der Adapterring in der Weise ausgeführt, dass das Adapter-Verbindungselement im Bereich einer Stirnseite des Adapterteils an der radialen Außenseite des Adapterringes angeordnet ist. In Kombination mit einer Ausführung der Verbindungselemente als Rastelemente wird eine Verrastung des Adapterringes an dieser Stirnseite mit dem zugeordneten Gehäuseteil erreicht. Der Vorteil dieser Ausführung liegt darin, dass eine axiale Überlappung zwischen der Stirnseite des Adapterringes und dem benachbarten Gehäuseteil erfolgt, und zwar in gleicher Weise wie die Überlappung zwischen den unmittelbar zusammengefügten Gehäuseteilen für den Fall, dass kein Adapterteil eingesetzt wird. Auch mit Adapterteil wird eine feste Verbindung zwischen den Gehäuseteilen erzielt, wobei die Qualität der Verbindung zumindest im Wesentlichen gleich ist wie bei unmittelbar miteinander verrasteten Gehäuseteilen.According to a further expedient embodiment of the adapter ring is designed in such a way that the adapter-connecting element is arranged in the region of an end face of the adapter part on the radial outer side of the adapter ring. In combination with an embodiment of the connecting elements as latching elements, a latching of the adapter ring is achieved at this end face with the associated housing part. The advantage of this embodiment is that an axial overlap between the end face of the adapter ring and the adjacent housing part takes place, in the same way as the overlap between the immediately assembled housing parts in the event that no adapter part is used. Even with adapter part a firm connection between the housing parts is achieved, wherein the quality of the connection is at least substantially the same as in directly latched together housing parts.
Ein weiterer Vorteil liegt in der Möglichkeit, mehrereAnother advantage is the possibility of several
Adapterteile zu kombinieren und zu einem Gesamt-Adapterteil zusammenzusetzen. In diesem Fall werden zwei oder mehrere, untereinander identisch aufgebaute Adapterteile axial hintereinander liegend zusammengesetzt und zwischen die beiden Gehäuseteile der Werkzeugmaschine eingefügt. Die einzelnen Adapterteile können hierbei entweder gleichartige oder auch unterschiedliche Funktionselemente aufweisen.To combine adapter parts and to assemble a total adapter part. In this case, two or more, mutually identically constructed adapter parts are assembled axially one behind the other and inserted between the two housing parts of the machine tool. The individual adapter parts can have either identical or different functional elements.
Es kann zweckmäßig sein, an beiden Stirnseiten des Adapterteils Adapter-Verbindungselemente vorzusehen, die mit den jeweils zugeordneten Gehäuse-Verbindungsteilen korrespondieren. Möglich ist es aber auch, nur an einer Stirnseite des Adapterteils ein Adapter-Verbindungselement anzuordnen und an der gegenüberliegenden Stirnseite ein Adapter-Kompensationselement vorzusehen, das nicht in einen Verbindungseingriff mit dem zugewandten Gehäuse-Verbindungselement gebracht wird, sondern das betreffende Gehäuse-Verbindungselement topfförmig übergreift, wodurch eine in Achsrichtung kompakte Ausführung erreicht wird. Die Verbindung an dieser Stirnseite wird zweckmäßigerweise über eine separate Verbindungseinrichtung durchgeführt, beispielsweise über eine Schraubverbindung.It may be expedient to provide adapter connection elements on both end sides of the adapter part, which correspond with the respectively assigned housing connection parts. However, it is also possible to arrange an adapter connection element only on one end side of the adapter part and to provide an adapter compensation element on the opposite end side, which is not brought into connection engagement with the facing housing connection element, but cup-shaped the relevant housing connection element engages, whereby a compact design is achieved in the axial direction. The connection on this end face is expediently carried out via a separate connection device, for example via a screw connection.
Weitere Vorteile und zweckmäßige Ausführungen sind den weiteren Ansprüchen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen:Further advantages and expedient embodiments can be taken from the further claims, the description of the figures and the drawings. Show it:
Fig. 1 eine schematische Darstellung des zweiteiligen Gehäuses einer Handwerkzeugmaschine, mit einem Griffgehäuse und einem Motorgehäuse in zusammengesetzter Position,1 is a schematic representation of the two-part housing of a power tool, with a handle housing and a motor housing in the assembled position,
Fig. 2 eine Schnittdarstellung aus dem Verbindungsbereich zwischen den Gehäuseteilen,2 is a sectional view of the connection area between the housing parts,
Fig. 3 das Gehäuse der Handwerkzeugmaschine mit auseinander gezogenen Gehäuseteilen, wobei der Zwischenraum zwischen den Gehäuseteilen zur Aufnahme einesFig. 3 shows the housing of the power tool with pulled apart housing parts, wherein the space between the housing parts for receiving a
Adapterteils genutzt werden kann,Adapter parts can be used,
Fig. 4 eine Schnittdarstellung mit einem eingesetzten Adapterteil zwischen den beiden Gehäuseteilen,4 is a sectional view with an inserted adapter part between the two housing parts,
Fig. 5 eine weitere Schnittdarstellung mit zwei axial hintereinander eingesetzten Adapterteilen,5 is a further sectional view with two axially successively used adapter parts,
Fig. 6 eine Seitenansicht auf das Gehäuse gemäß Fig. 5.6 is a side view of the housing of FIG .. 5
In den Figuren sind gleiche Bauteile mit gleichen Bezugszeichen versehen .In the figures, the same components are provided with the same reference numerals.
Wie Fig. 1 zu entnehmen, ist das Gehäuse 2 der Handwerkzeugmaschine 1, beispielsweise ein Schleifgerät wie ein Winkelschleifer, zweigeteilt und besteht aus zwei lösbar aneinander montierten Gehäuseteilen 2a und 2b, von denen das erste Gehäuseteil 2a ein Griffgehäuse und das zweite Gehäuseteil 2b ein Motorgehäuse zur Aufnahme eines elektrischen Antriebsmotors bildet. Die beiden Gehäuseteile 2a und 2b stoßen an einer Trennkante aneinander, die mit dem Bezugszeichen 3 bezeichnet ist. Die Verbindung zwischen den Gehäuseteilen 2a und 2b ist vorzugsweise manuell und ohne Hilfswerkzeug zu bewerkstelligen, ebenso das Lösen der beiden Gehäuseteile 2a und 2b.1, the housing 2 of the power tool 1, for example, a grinder such as an angle grinder, divided into two and consists of two detachably mounted to each other housing parts 2a and 2b, of which the first housing part 2a a handle housing and the second housing part 2b forms a motor housing for receiving an electric drive motor. The two housing parts 2a and 2b abut each other at a separating edge, which is designated by the reference numeral 3. The connection between the housing parts 2a and 2b is preferably done manually and without auxiliary tool, as well as the release of the two housing parts 2a and 2b.
Im zusammengefügten Zustand greifen Gehäuse-Verbindungselemente, die als Gehäuse-Rastelemente 4 und 5 ausgeführt und jeweils an den Gehäuseteilen 2a und 2b im Bereich einander zugewandten Stirnseite angeordnet sind, verrastend ineinander. Die Verbindung wird durch Zusammenfügen in Radialrichtung hergestellt, so dass in Achsrichtung, die zugleich die Lösebzw. Montagerichtung darstellt, ein Formschluss zwischen den Gehäuse-Rastelementen 4 und 5 besteht. Zweckmäßigerweise ist das Griffgehäuse 2a in Achrichtung zweigeteilt, was die Möglichkeit eröffnet, die beiden Hälften des Griffgehäuses jeweils in Radialrichtung an das Gehäuse-Rastelement 5 am Motorgehäuse 2b anzunähern .In the assembled state, housing connecting elements which are designed as housing latching elements 4 and 5 and respectively arranged on the housing parts 2a and 2b in the region of the end face facing one another latch into one another. The connection is made by joining in the radial direction, so that in the axial direction, which at the same time the Lösebzw. Mounting direction represents a positive connection between the housing locking elements 4 and 5 consists. Expediently, the handle housing 2a is divided into two parts in the axial direction, which opens up the possibility of each approaching the two halves of the handle housing in the radial direction to the housing latching element 5 on the motor housing 2b.
Das Gehäuse-Rastelement 5 am Gehäuseteil 2b ist als Außengewinde ausgeführt, das Gehäuse-Rastelement 4 am Gehäuseteil 2a dementsprechend als Innengewinde. Möglich ist aber auch eine Verrastung mit ausschließlich axialer Verrastbewegung ohne Drehung um die Längsachse der Handwerkzeugmaschine.The housing locking element 5 on the housing part 2b is designed as an external thread, the housing locking element 4 on the housing part 2a accordingly as an internal thread. But it is also possible locking with only axial Verrastbewegung without rotation about the longitudinal axis of the power tool.
In Fig. 3 sind die Gehäuseteile 2a und 2b der Handwerkzeugmaschine 1 axial voneinander entfernt dargestellt, wodurch ein Zwischenraum 6 zwischen den Gehäuseteilen entsteht, in den ein Adapterteil eingesetzt werden kann. Dieses Adapterteil ist in Fig. 4 mit Bezugszeichen 7 bezeichnet und umfasst zwei axial beabstandete, parallele Adapterringe 8a und 8b sowie ein zwischen den Adapterringen 8a, 8b aufgenommenes Funktionselement 9. Das Adapterteil 7 kann bei Bedarf in den Zwischenraum 6 eingesetzt werden, wodurch sich die Gesamtlänge der Handwerkzeugmaschine 1 erhöht. Je nach Wahl des Funktionselementes 9 übernimmt das Adapterteil 7 verschiedene Aufgaben. Gemäß einer bevorzugten Ausführung ist das Funktionselement 9 als Schwingungsdämpfungselement ausgebildet, welches für eine Reduzierung der Schwingungsbelastung im Gehäuse der Handwerkzeugmaschine sorgt. In Betracht kommen aber auch sonstige Ausführungen, beispielsweise ein Funktionselement als Träger einer Beleuchtungseinheit oder eine Ausführung mit Sensoren, eine Steuereinheit, eine Anzeigeeinheit oder dergleichen.In Fig. 3, the housing parts 2 a and 2 b of the power tool 1 are shown axially remote from each other, creating a gap 6 between the housing parts, in which an adapter part can be used. This adapter part is designated by reference numeral 7 in FIG. 4 and comprises two axially spaced, parallel adapter rings 8a and 8b and a functional element 9 received between the adapter rings 8a, 8b. The adapter part 7 can be inserted into the interspace 6 as required, whereby the overall length of the power tool 1 increases. Depending on the choice of the functional element 9, the adapter part 7 takes on different tasks. According to a preferred embodiment, the functional element 9 is designed as a vibration damping element, which ensures a reduction of the vibration load in the housing of the power tool. However, other embodiments, such as a functional element as a carrier of a lighting unit or a version with sensors, a control unit, a display unit or the like, are also possible.
Das Adapterteil 7 übernimmt im eingesetzten Zustand eine kraftübertragende Funktion zwischen den beiden Gehäuseteilen 2a und 2b. Im Falle einer Ausführung des Funktionselements 9 als Schwingungsdämpfungselement kann es zweckmäßig sein, dass die sich zwischen den Gehäuseteilen 2a und 2b erstreckenden Adapterringe 8a, 8b ein Mindestmaß an Eigenelastizität aufweist, damit innerhalb enger Grenzen eine Relativbewegung zwischen den Gehäuseteilen 2a und 2b auftreten kann, die von dem Funktionselement 9 gedämpft wird. Möglich ist aber auch eine Ausführung der beiden Adapterringe 8a, 8b aus einem Hartkunststoff, wobei das Funktionselement 9, welches aus weichem, dämpfenden Material besteht, die beiden Adapterringe 8a und 8b axial miteinander verbindet.The adapter part 7 assumes a force-transmitting function between the two housing parts 2a and 2b in the inserted state. In the case of an embodiment of the functional element 9 as a vibration damping element, it may be appropriate that the between the housing parts 2a and 2b extending adapter rings 8a, 8b has a minimum of inherent elasticity, so that within narrow limits, a relative movement between the housing parts 2a and 2b may occur is damped by the functional element 9. However, an embodiment of the two adapter rings 8a, 8b made of a hard plastic is also possible, wherein the functional element 9, which consists of soft, damping material, axially connects the two adapter rings 8a and 8b.
Der Adapterring 8b, der dem Gehäuseteil 2a zugewandt ist, ist im Bereich seiner freien axialen Stirnseite mit einem Adapter- Rastelement 11 versehen, das in korrespondierender Weise aufgebaut ist wie das Gehäuse-Rastelement 4 an dem Gehäuseteil 2a, das als radial nach innen gerichtete Rasteinrichtung mit mehreren umlaufenden, parallelen Rastzähnen oder als Gewinde ausgebildet ist. Dadurch kann das Adapterteil 7 mit dem Gehäuseteil 2a in eine Verbindungs- bzw. Rastposition gebracht werden, und zwar in gleicher Weise wie bei einer unmittelbaren Verbindung der beiden Gehäuseteile miteinander. Wie Fig. 4 zu entnehmen, ist am Adapterring 8a auf der dem Gehäuseteil 2b zugewandten Seite ein Adapter- Kompensationselement 10 vorgesehen, das topfförmig ausgebildet ist und das Gehäuse-Rastelement 5 übergreift, so dass in Achsrichtung eine kompakte Ausführung gegeben ist. Das Gehäuse- Rastelement 5 ist als radial sich nach außen erstreckende Rasteinrichtung, beispielsweise als Außengewinde ausgeführt. Ein kraftübertragende Verbindung zwischen dem Adapter- Kompensationselement 10 und dem Gehäuse-Rastelement 5 findet nicht statt; vielmehr wird die Verbindung zwischen demThe adapter ring 8b, which faces the housing part 2a, is provided in the region of its free axial end side with an adapter latching element 11, which is constructed in a corresponding manner as the housing latching element 4 on the housing part 2a, as a radially inwardly directed latching device is formed with a plurality of circumferential, parallel ratchet teeth or as a thread. As a result, the adapter part 7 can be brought to the housing part 2a in a connecting or locking position, in the same manner as in a direct connection of the two housing parts together. As shown in FIG. 4, an adapter compensation element 10 is provided on the adapter ring 8a on the side facing the housing part 2b, which is cup-shaped and the housing latching element 5 overlaps, so that in the axial direction, a compact design is given. The housing latching element 5 is designed as a radially outwardly extending latching device, for example as an external thread. A force-transmitting connection between the adapter compensation element 10 and the housing latching element 5 does not take place; rather, the connection between the
Adapterteil 7 und dem Gehäuseteil 2b über eine zusätzliche Verbindungseinrichtung 12 hergestellt, die beispielsweise als Schraubverbindung ausgeführt ist und mehrere, über den Umfang verδteilte Schrauben umfassen kann, mit denen der Adapterring 8a mit dem Gehäuseteil 2b verschraubt wird.Adapter part 7 and the housing part 2b made via an additional connection means 12, which is designed for example as a screw connection and may comprise a plurality ververschiebte around the circumference screws, with which the adapter ring 8a is screwed to the housing part 2b.
Gegebenenfalls ist auch das Adapter-Kompensationselement 10 als Adapter-Verbindungselement ausgeführt, das an das zugeordnete Gehäuse-Verbindungselement 5 angepasst ist. In diesem Fall ist die Verbindungseinrichtung 12 nicht erforderlich.Optionally, the adapter compensation element 10 is designed as an adapter connecting element, which is adapted to the associated housing connecting element 5. In this case, the connecting device 12 is not required.
Das Funktionselement 9 weist eine axial überstehende Lippe 9a auf, die den Adapterring 8a im Bereich des Adapter- Kompensationselementes 10 bis zur Stirnseite überdeckt. Da das axial gegenüberliegende Adapter-Rastelement 11 in montierter Position von dem Gehäuse-Rastelement 4 übergriffen ist, deckt somit das Funktionselement 9 den Zwischenraum, in den das Adapterteil 7 eingesetzt ist, in Achsrichtung vollständig ab.The functional element 9 has an axially projecting lip 9a, which covers the adapter ring 8a in the region of the adapter compensation element 10 up to the end face. Since the axially opposite adapter locking element 11 is overlapped in the mounted position of the housing locking element 4, thus covering the functional element 9, the gap in which the adapter part 7 is inserted in the axial direction completely.
In den Fig. 5 und 6 ist ein weiteres Ausführungsbeispiel dargestellt, bei dem zwei einzelne Adapterteile 7 axial hintereinander eingesetzt werden und mit den beiden Gehäuseteilen 2a und 2b verbunden werden. Dadurch erhält man ein Gesamt-Adapterteil, bestehend aus den beiden einzelnen Adapterteilen 7, die untereinander bezüglich ihrer Dimensionen und Geometrie identisch aufgebaut sind und jeweils zwei Adapterringe 8a, 8b und ein Funktionselement 9 aufweisen. Das Funktionselement 9 in den beiden Adapterteilen kann sich gegebenenfalls unterscheiden.5 and 6, a further embodiment is shown in which two individual adapter parts 7 are inserted axially one behind the other and are connected to the two housing parts 2a and 2b. This results in a total adapter part, consisting of the two individual adapter parts 7, which are constructed identically to each other with respect to their dimensions and geometry and each have two adapter rings 8a, 8b and a functional element 9. The Functional element 9 in the two adapter parts may possibly differ.
In der montierten Position sind die einander zugewandten Adapter-Rastelemente 10 und 11 im Bereich der Verbindung zwischen den einzelnen Adapterteilen 7 miteinander verrastet. Die Verbindung zwischen den jeweiligen Adapter-Rastelementen zu den Gehäuseteilen 2a und 2b erfolgt wie vorbeschrieben wie beim Ausführungsbeispiel gemäß Fig. 4. In the mounted position, the mutually facing adapter locking elements 10 and 11 are locked together in the region of the connection between the individual adapter parts 7. The connection between the respective adapter locking elements to the housing parts 2a and 2b is carried out as described above as in the embodiment of FIG. 4th

Claims

Ansprüche claims
1. Adapterteil für eine Werkzeugmaschine, insbesondere eine Handwerkzeugmaschine (1) , die ein Gehäuse (2) zur Aufnahme und Halterung einer Antriebseinheit und eines Werkzeugs aufweist, wobei das Gehäuse (2) zwei separate Gehäuseteile (2a, 2b) besitzt, die über eine Verbindungseinrichtung miteinander zu verbinden sind, welche Gehäuse-Verbindungselemente (4, 5) an den Gehäuseteilen (2a, 2b) umfasst, mit einem dem Adapterteil (7) zugeordneten Funktionselement (9) , wobei das Adapterteil (7) zwischen die beiden Gehäuseteile (2a, 2b) einzufügen ist und mindestens ein Adapter-Verbindungselement (11) aufweist, das an ein Gehäuse-Verbindungselement (4) angepasst ist und mit dem Gehäuse-Verbindungselement (4) in eine Verbindungsposition zu verbringen ist.1. adapter part for a machine tool, in particular a hand tool (1), which has a housing (2) for receiving and holding a drive unit and a tool, wherein the housing (2) has two separate housing parts (2a, 2b), which via a Connection device to be connected to each other, which housing connecting elements (4, 5) on the housing parts (2a, 2b), with a the adapter part (7) associated with the functional element (9), wherein the adapter part (7) between the two housing parts (2a , 2b) and at least one adapter connecting element (11), which is adapted to a housing connecting element (4) and is to spend with the housing connecting element (4) in a connecting position.
2. Adapterteil nach Anspruch 1, dadurch gekennzeichnet, dass das Adapter-Verbindungselement (11) separat von dem Funktionselement (9) ausgebildet ist.2. Adapter part according to claim 1, characterized in that the adapter-connecting element (11) is formed separately from the functional element (9).
3. Adapterteil nach Anspruch 2, dadurch gekennzeichnet, dass das Adapter-Verbindungselement (11) an einem Adapterring (8a, 8b) ausgebildet sind, der Träger des Funktionselements (9) ist.3. Adapter part according to claim 2, characterized in that the adapter-connecting element (11) on an adapter ring (8 a, 8 b) are formed, the carrier of the functional element (9).
4. Adapterteil nach Anspruch 3, dadurch gekennzeichnet, dass der Adapterring (8a, 8b) elastisch verformbar ausgebildet ist.4. Adapter part according to claim 3, characterized in that the adapter ring (8a, 8b) is formed elastically deformable.
5. Adapterteil nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass das Adapter-Verbindungselement (11) im Bereich einer Stirnseite an der radialen Außenseite des Adapterrings (8b) angeordnet ist. 5. Adapter part according to claim 3 or 4, characterized in that the adapter-connecting element (11) in the region of an end face on the radial outer side of the adapter ring (8b) is arranged.
6. Adapterteil nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass im Bereich der gegenüberliegenden Stirnseite ein Adapter-Kompensationselement (10) ausgebildet ist, das an ein Gehäuse-Verbindungselement (5) angepasst ist.6. Adapter part according to one of claims 3 to 5, characterized in that in the region of the opposite end face, an adapter compensation element (10) is formed, which is adapted to a housing connecting element (5).
7. Adapterteil nach Anspruch 6, dadurch gekennzeichnet, dass das Gehäuse-Verbindungselement (5) an der radialen Außenseite des Gehäuseteils (2b) angeordnet ist und das Adapter-Kompensationselement (10) das zugeordnete Gehäuse-Verbindungselement (5) topfförmig übergreift.7. Adapter part according to claim 6, characterized in that the housing connecting element (5) on the radial outer side of the housing part (2b) is arranged and the adapter compensation element (10) engages over the associated housing connecting element (5) pot-shaped.
8. Adapterteil nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, dass das Funktionselement (9) die äußere Mantelfläche des Adapterrings (8b) zumindest teilweise überdeckt.8. Adapter part according to one of claims 3 to 7, characterized in that the functional element (9) at least partially covers the outer surface of the adapter ring (8b).
9. Adapterteil nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, dass zwei parallel angeordnete Adapterringe (8a, 8b) vorgesehen sind, zwischen denen das Funktionselement (9) angeordnet ist.9. Adapter part according to one of claims 3 to 8, characterized in that two parallel arranged adapter rings (8a, 8b) are provided, between which the functional element (9) is arranged.
10. Adapterteil nach Anspruch 9, dadurch gekennzeichnet, dass das Funktionselement (9) die beiden Adapterringe (8a, 8b) miteinander verbindet.10. Adapter part according to claim 9, characterized in that the functional element (9) connects the two adapter rings (8a, 8b) with each other.
11. Adapterteil nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass sich das Funktionselement (9) zumindest im Wesentlichen über die axiale Länge des Adapterteils (7) erstreckt.11. Adapter part according to one of claims 1 to 10, characterized in that extending the functional element (9) at least substantially over the axial length of the adapter part (7).
12. Adapterteil nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass das Gehäuse-Verbindungselement (4) und das Adapter-Verbindungselement (11) als Rastelemente ausgebildet sind, die in eine Rastposition zu verbringen sind.12. Adapter part according to one of claims 1 to 11, characterized in that the housing connecting element (4) and the adapter connecting element (11) are designed as latching elements, which are to be spent in a latching position.
13. Adapterteil nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass eine Mehrzahl von Adapterteilen (7) zu einem Gesamt-Adapterteil zusammen zu setzen sind.13. Adapter part according to one of claims 1 to 12, characterized in that a plurality of adapter parts (7) are to be put together to form an overall adapter part.
14. Adapterteil nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass das Funktionselement (9) als Schwingungsdämpfungselement ausgebildet ist.14. Adapter part according to one of claims 1 to 13, characterized in that the functional element (9) is designed as a vibration damping element.
15. Adapterteil nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass das Funktionselement (9) eine Mess- und/oder Steuereinheit umfasst.15. Adapter part according to one of claims 1 to 14, characterized in that the functional element (9) comprises a measuring and / or control unit.
16. Adapterteil nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass das Funktionselement (9) eine Anzeigeeinheit umfasst.16. Adapter part according to one of claims 1 to 15, characterized in that the functional element (9) comprises a display unit.
17. Adapterteil nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass das Funktionselement (9) eine Beleuchtungseinheit umfasst.17. Adapter part according to one of claims 1 to 16, characterized in that the functional element (9) comprises a lighting unit.
18. Werkzeugmaschine mit einem Adapterteil nach einem der Ansprüche 1 bis 17. 18. Machine tool with an adapter part according to one of claims 1 to 17.
EP09732559.1A 2008-04-18 2009-03-25 Adapter part for a machine tool Active EP2268456B1 (en)

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DE102008001266A DE102008001266A1 (en) 2008-04-18 2008-04-18 Adapter part for a machine tool
PCT/EP2009/053531 WO2009127505A1 (en) 2008-04-18 2009-03-25 Adapter part for a machine tool

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CN102006972A (en) 2011-04-06
RU2516019C2 (en) 2014-05-20
WO2009127505A1 (en) 2009-10-22
RU2010146707A (en) 2012-05-27
CN102006972B (en) 2014-02-05
US8453757B2 (en) 2013-06-04
US20110024148A1 (en) 2011-02-03
DE102008001266A1 (en) 2009-10-22

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