EP2512752B1 - Hand-power tool - Google Patents

Hand-power tool Download PDF

Info

Publication number
EP2512752B1
EP2512752B1 EP10773269.5A EP10773269A EP2512752B1 EP 2512752 B1 EP2512752 B1 EP 2512752B1 EP 10773269 A EP10773269 A EP 10773269A EP 2512752 B1 EP2512752 B1 EP 2512752B1
Authority
EP
European Patent Office
Prior art keywords
housing
inner housing
power tool
transmission
support
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.)
Active
Application number
EP10773269.5A
Other languages
German (de)
French (fr)
Other versions
EP2512752A1 (en
Inventor
Andre Ullrich
Siegfried Fehrle
Thomas Bernhardt
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 EP2512752A1 publication Critical patent/EP2512752A1/en
Application granted granted Critical
Publication of EP2512752B1 publication Critical patent/EP2512752B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/065—Details regarding assembling of the tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/121—Housing details

Definitions

  • EP2 127 820 A1 As the closest prior art is EP2 127 820 A1 considered.
  • a hand tool in particular a hammer drill, known with a gear, a machine housing and an inner housing disposed within the machine housing, wherein the inner housing is provided to receive transmission elements of the transmission.
  • the transmission elements are mounted by means of bearing elements in the inner housing.
  • the inner housing supports the transmission elements along an axial and along a radial direction.
  • the invention according to claim 1 is based on a hand tool, in particular a drill and / or chisel, with a gearbox, with a machine housing and with an inner housing disposed within the machine housing, which is provided to at least partially receive at least one transmission element of the transmission.
  • a bearing of the at least one transmission element is divided between the inner housing and the machine housing.
  • the term "gear” should be understood here in particular a mechanism comprising at least two components, in particular transmission elements, which are provided by means of an interaction to at least change an amount of force, torque and / or speed and / or with their help one Movement form, such as a rotation, in another form of movement, such as translation, can be converted and / or are intended to transmit impact pulses.
  • the components, in particular gear elements can here be embodied as gears, shafts, clubs, firing pin, hammer tubes, wobble bearings, bearings and other components that appear to be appropriate to a person skilled in the art.
  • the at least one transmission element is designed as a hammer tube and / or as a shaft, in particular as an output shaft and / or intermediate shaft.
  • "intended” should be understood to mean in particular specially equipped and / or specially designed.
  • machine housing should in particular define an outermost shell that encloses components of the handheld power tool, so that the components of the handheld power tool are substantially protected from external influences, wherein the shell is provided to an operator of the power tool gripping and operation, in particular a guide to enable the hand tool machine.
  • the machine housing may be formed from a unit which comprises at least two housing half-shells, which can be joined together along a connecting plane.
  • the machine housing is formed of a plurality of units, in particular of a gear housing and a motor housing, wherein the gear housing and the motor housing are pot-shaped.
  • the cup-shaped gear housing and the pot-shaped motor housing are connected to one another by means of connecting elements known to the person skilled in the art in a connecting plane.
  • the gear housing and the motor housing each have two housing halves, which can each be joined together along a connecting plane.
  • the machine housing may be formed from various materials that appear appropriate to those skilled in the art, such as a metal, a non-ferrous metal, etc., preferably a plastic.
  • the term “inside” should in particular define a spatial position of at least the inner housing relative to the machine housing, wherein the inner housing is substantially enclosed by the machine housing, in particular in a common plane which is substantially perpendicular to a rotational axis of a disposed within the inner housing gear member and / or to a rotation axis of a tool holder of the power tool runs.
  • the term “partially absorb” is to be understood here in particular an arrangement of the at least one transmission element in the inner housing, wherein at least portions of the at least one transmission element are received by the inner housing, in particular substantially positively surrounded, so that at least one degree of freedom of movement of the at least one Transmission element can be at least partially limited.
  • a bearing of the at least one transmission element In connection with a bearing of the at least one transmission element is to be understood by "split" in particular a decoupling of the inner housing of the machine housing with respect to a bearing function, in particular a radial bearing function, the at least one transmission element. It is thus at least a bearing force of the at least one transmission element via the inner housing and at least one bearing force of the at least one transmission element decoupled from the inner housing supported on the machine housing.
  • a summation of tolerances of a bearing of gear elements can be counteracted particularly advantageously.
  • a game of the transmission elements dependent on the tolerances can be kept particularly low.
  • rotationally driven gear elements such as, in particular, an output shaft and / or an intermediate shaft
  • a high running accuracy in particular a high concentricity, can advantageously be achieved by the configuration according to the invention.
  • a vibration development can be counteracted advantageous.
  • the inner housing is provided to support the at least one transmission element at least axially.
  • the term "axially support” is to be understood here in particular an arrangement of at least the inner housing relative to the at least one transmission element, wherein the at least one transmission element at least partially directly or indirectly against the inner housing, so that a force flow between the at least one transmission element and the Inner housing can take place, in particular a force flow, which is substantially parallel to the axis of rotation of a disposed within the inner housing gear member and / or the axis of rotation of a tool holder the hand tool runs.
  • the axial support at least one degree of freedom of movement of the at least one transmission element along at least one direction, in particular substantially parallel to the axis of rotation of a disposed within the inner housing gear member and / or to the axis of rotation of the tool holder of the power tool to be limited.
  • the term "essentially parallel” should in particular define a direction which, relative to a reference direction, has a deviation, in particular less than 8 °, advantageously less than 5 °, and particularly advantageously less than 2 °.
  • the inner housing can be formed with a small wall thickness, which material and cost can be saved particularly advantageous.
  • the machine housing is provided to at least radially support the at least one gear element decoupled from the inner housing.
  • the term "radially support” should be understood here in particular an arrangement of the machine housing relative to the at least one transmission element, wherein the at least one transmission element at least partially directly or indirectly to the machine housing, so that a power flow between the at least one transmission element and the machine housing can take place, in particular a force flow which is substantially perpendicular to the axis of rotation of a disposed within the inner housing gear member and / or to the axis of rotation of the tool holder of the power tool.
  • radial bearing forces, which originate from the at least one gear element can be supported on the machine housing in a particularly advantageous manner, so that a running accuracy of the at least one gear element can be positively influenced in terms of design.
  • the handheld power tool has at least one support element that at least partially penetrates the inner housing along a radial direction.
  • a "support element” is to be understood in particular as a component which is intended to transmit forces and / or torques occurring in one component to another component.
  • a "radial direction” is to be understood here in particular as meaning a direction which is essentially perpendicular to the axis of rotation of one inside the inner housing arranged gear element and / or extends to the axis of rotation of the tool holder of the power tool.
  • the term "substantially perpendicular” should be understood to mean a direction which encloses an angle with a reference direction, which in particular has an angle between 85 ° and 95 °.
  • the at least one support element bears against the machine housing, so that a radial support, in particular a radial support decoupled from the inner housing, of the at least one gear element on the machine housing can be achieved.
  • a decoupling of the inner housing from a radial support of the at least one transmission element can advantageously be achieved.
  • the support element is designed in one piece with a support element which is provided to axially support the inner housing.
  • the support element is integrally formed with an intermediate flange, which is intended to axially support the inner housing.
  • the term "integral" should in particular be formed in one piece and / or from a cast and / or formed as a component, which is separable only with the aid of a cutting and / or cutting tool.
  • the support element has a radially outwardly facing free end. It is conceivable, along the radial direction between the free end of the support member and the machine housing to arrange a damping means, so that vibrations that emanate from the at least one transmission element, can be particularly advantageously damped.
  • the damping means can be formed from various materials that appear appropriate to the person skilled in the art. Particularly preferably, the damping means is formed from an elastomer. As a result, a relief of an operator during operation of the power tool can advantageously be achieved. Furthermore, by means of the embodiment according to the invention of the portable power tool advantageous space, cost and installation costs can be reduced.
  • the inner housing has at least one radial recess which is provided to at least partially receive the support element.
  • a "radial recess” is to be understood here in particular as a continuous recess of a lateral surface through which it is perpendicular to the axis of rotation of a disposed within the inner housing gear member and / or to the axis of rotation of the tool holder of the power tool, a component is feasible.
  • the handheld power tool comprises an intermediate flange which has at least one support element which is provided to axially support at least the inner housing.
  • the hand tool according to the invention has at least two storage levels, in which the at least one transmission element is decoupled from the inner housing radially supported on the machine housing.
  • the bearing planes in this case run essentially perpendicular to the axis of rotation of a gear element arranged within the inner housing and / or to the axis of rotation of the tool receptacle of the hand tool machine.
  • the at least two bearing planes along an axial direction, which is substantially parallel to the axis of rotation of a disposed within the inner housing transmission element and / or to the axis of rotation of the tool holder of the power tool, spaced from each other, preferably with an axial distance of at least 2 cm.
  • at least one radial bearing is arranged in the at least two storage levels. In this way, a particularly advantageous power flow can be achieved.
  • the inner housing is formed like a shell.
  • shell-like is to be understood here in particular as meaning a structure in which the inner housing is formed from at least two housing half-shells, which can be connected to one another along a connecting plane by means of connecting elements known to the person skilled in the art.
  • the connecting plane of the housing half-shells of the inner housing extends through the axis of rotation of a transmission element arranged within the inner housing and / or through the axis of rotation of the tool holder of the power tool.
  • FIG. 1 shows a hand tool 10 according to the invention, which is designed as a drill and / or chisel hammer.
  • the hand tool 10 comprises a gear 12, a machine housing 14 and an inner housing 16 (FIG. FIG. 2 ), which is intended to be a transmission element 18 of the transmission 12 record.
  • a bearing of the transmission element 18 is divided on the inner housing 16 and the machine housing 14.
  • the transmission 12 includes a percussion unit 36 for generating a shock pulse.
  • the transmission 12 is connected to a drive torque generating drive unit 38 (not shown here).
  • the impact impulse of the percussion mechanism unit 36 and a rotation of an intermediate shaft of the percussion unit 36, a hammer tube of the percussion unit 36 and a tool holder 40 of the power tool 10 are generated in a manner known to those skilled in the art, so that will not be discussed further here.
  • the tool holder 40 of the hand tool 10 is arranged in a front region 42 of the hand tool 10 and is intended to receive a tool 44.
  • the handheld power tool 10 comprises a main handle 48 for actuating the handheld power tool 10 and for applying a force emanating from an operator to the handheld power tool 10.
  • the handheld power tool 10 is also designed with a detachable auxiliary handle 50.
  • the auxiliary handle 50 can be detachably fastened to the handheld power tool 10 via a latching connection or other connections which appear meaningful to a person skilled in the art.
  • the auxiliary handle 50 is arranged to guide the hand tool 10 by the operator in the vicinity of the tool holder 40 on the power tool 10.
  • a main extension direction 52 of the power tool 10 extends from the main handle 48 in the direction of the tool holder 40.
  • the main extension 52 runs parallel to a rotation axis 54 of the tool holder 40 located in the tool 44 and a rotation axis 54 of the hammer tube designed as a transmission element 18.
  • Within the designed as a hammer tube gear member 18 are a firing pin, a racket and a hammer pin for transmitting the impact pulse on the tool 44 are arranged (not shown here).
  • the machine housing 14 comprises a pot-like gear housing 56 and a pot-like motor housing 58.
  • the gear housing 56 and the motor housing 58 are in a mounted state in a connecting plane 60 in a manner known in the art separable connected with each other.
  • the connecting plane 60 runs perpendicular to the axis of rotation 54 of the tool 44 located in the tool holder 40 and to the axis of rotation 54 of the hammer tube designed as a transmission element 18.
  • the motor housing 58 is partially formed integrally with the main handle 48. Further, within the motor housing 58 designed as an electric motor drive unit 38 is arranged (not shown here).
  • the arranged in an assembled state of the transmission case 56 within the transmission housing 56 inner housing 16 is provided to axially support the transmission element 18 designed as a hammer tube.
  • Trained as a hammer tube transmission element 18 is mounted by means of a bearing bush 64 designed as a bearing element 66 and a ball bearing 68 formed as a bearing member 70 within the inner housing 16 ( FIG. 5 ).
  • the bearing bush 64 is hereby arranged in an intermediate flange 30 of the portable power tool 10, which is arranged partially within the assembled inner housing 16.
  • the intermediate flange 30 has a support element 20, 24, which is intended to support the inner housing 16 axially.
  • the support member 20, 24 is in this case formed integrally with the intermediate flange 30.
  • the inner housing 16 has a radial recess 28 which is provided to partially receive the support member 20, 24.
  • the inner housing 16 to a receptacle of the ball bearing 68 and the intermediate flange 30 grooves 72, which extend along a circumferential direction 74 in the inner housing 16.
  • the circumferential direction 74 extends in a plane which extends perpendicular to the axis of rotation 54 of the tool 44 located in the tool holder 40 and to the axis of rotation 54 of the gear element 18 designed as a hammer tube.
  • the handheld power tool 10 has a support element 20, 24, which partially penetrates the inner housing 16 along a radial direction 22.
  • This support element 20,24 is integral with the support member 20, 24, which is intended to support the inner housing 16 axially.
  • the support member 20, 24 extends in an assembled state of the machine housing 14 and the inner housing 16, starting from the intermediate flange 30 in the direction of the transmission housing 56 through the recess 28 of the inner housing 16 therethrough.
  • the support member 20, 24 has a radially outwardly facing free end 26 which rests in an assembled state of the power tool 10 to the transmission housing 56. Trained as a hammer tube transmission element 18 is decoupled from the inner housing 16 radially on the machine housing 14, in particular on the transmission housing 56, supported.
  • the intermediate flange 30 six support elements 20, 24, which are partially formed integrally with the intermediate flange 30.
  • the inner housing 16 in this case has six recesses 28 for receiving the six support elements 20, 24.
  • the six support elements 20, 24 are in this case arranged uniformly along the circumferential direction 74 on the intermediate flange 30.
  • the six recesses 28 are also arranged uniformly along the circumferential direction 74 on the inner housing 16.
  • more than six support elements 20, 24 or less than six support elements 20, 24 are provided, so that the skilled person will provide a meaningful number of support elements 20, 24 and recesses 28 for a specific requirement.
  • FIG. 3 shows a detailed view of the assembled inner housing 16 of the hand tool 10 according to the invention, wherein the gear housing 56 is dismantled.
  • the ball bearing 68 for supporting the formed as a hammer tube gear member 18 in one of the grooves 72 is arranged in an assembled state of the inner housing 16.
  • the inner housing 16 has on this side 78 a recess 80 which is intended to receive a radial element 82 of the gear housing 56.
  • the inner housing has six recesses 80 for receiving a radial element 82.
  • the radial element 82 is formed as a radial extension 84 of the transmission housing 56 ( FIG. 4 ).
  • the radial extension 84 is arranged on an inner side 86 of the transmission housing 56, which faces the inner housing 16 in an assembled state of the transmission housing 56.
  • the gear housing 56 six radial extensions 84 which mounted in one State of the gear housing 56 each engage in one of the six recesses 80 of the inner housing 16.
  • more than six radial extensions 84 or fewer than six radial extensions 84 are provided depending on the requirement, so that the skilled person will provide a meaningful number of radial projections 84 and recesses 80 for a specific requirement.
  • the arranged in the inner housing 16 ball bearing 68 includes an outer ring 88 which rests in the mounted state of the gear housing 56 to the radial extensions 84.
  • the inner housing 16 comprises a bearing extension 90, which extends along a radial direction 22.
  • the bearing extension 90 extends from the inner housing 16 in the direction of the transmission housing 56.
  • the bearing extension 90 is provided to receive a ball bearing 92 designed as a bearing element 94.
  • the bearing extension 90 has a groove 96 which runs along the circumferential direction 74 in the bearing extension 90 of the inner housing 16.
  • the ball bearing 92 is intended to support a formed as an intermediate shaft 98 shaft 100 of the transmission 12. An axial support of the intermediate shaft 98 in this case takes place by means of an interaction of the ball bearing 92 and edge portions 102 of the groove 96 in the inner housing 16.
  • the bearing extension 90 has a recess 104 which is provided to a support member 106 of the transmission housing 56 record.
  • the bearing extension 90 comprises three recesses 104 (FIG. FIG. 4 ) and the transmission housing 56 comprises three support elements 106, wherein in each case a recess 104 receives a support element 106.
  • the support elements 106 of the gear housing 56 are provided to radially support the intermediate shaft 98 via the ball bearing 92.
  • the support members 106 of the gear housing 56 are inserted in an assembly of the gear housing 56 along the axial direction 62 in the recesses 104 of the bearing extension 90 of the already mounted inner housing 16.
  • the hand-held power tool 10 comprises two bearing levels 32, 34, a first bearing plane 32 and a second bearing plane 34, in which the transmission element designed as a hammer tube is decoupled from the inner housing 16 radially on the machine housing 14.
  • the two bearing planes 32, 34 in this case run perpendicular to the axis of rotation 54 of the tool holder 40 located in the tool 44 and the axis of rotation 54 of the hammer tube designed as a transmission element 18.
  • the first bearing plane 32 are in a mounted state of the machine housing 14 and the inner housing 16, the support elements 20, 24, a portion of the intermediate flange 30, the bearing bush 64 and a portion of the hammer tube designed as a transmission element 18 is arranged.
  • the second bearing plane 34 in a mounted state of the machine housing 14 and the inner housing 16, the radial extensions 84 of the gear housing 56, the ball bearings 68 and a portion of the transmission element 18 designed as a hammer tube are arranged.
  • FIG. 4 2 shows a schematic sectional representation of the machine housing 14, in particular of the gear housing 56, of the handheld power tool 10 according to the invention.
  • the radial extensions 84 of the gear housing 56 are arranged in a plane 108 (FIG. FIG. 2 ) arranged in an assembled state of the gear housing 56 perpendicular to the axis of rotation 54 of the tool holder 40 located in the tool 44 and the axis of rotation 54 of the hammer tube designed as a transmission element 18.
  • the radial extensions 84 are arranged uniformly along the circumferential direction 74 in the plane 108.
  • the plane 108 forms the second bearing plane 34 of the power tool 10 in an assembled state of the gear housing 56.
  • the support elements 106 of the gear housing 56 are arranged in a plane 110 that runs parallel to the plane 108 ( FIG. 2 ), in which the radial extensions 84 the transmission housing 56 are arranged.
  • the plane 110 in which the support elements 106 are arranged along the axial direction 62 in the direction of the main handle 48 spaced from the plane 108, which has the radial extensions 84 of the gear housing 56.
  • the plane 110 forms in a mounted state of the gear housing 56, a third bearing plane 112 of the power tool 10.
  • the third bearing plane 112 comprises in a mounted state of the power tool 10, a portion of the bearing extension 90 of the inner housing 16, the support members 106, the ball bearing 92 of the intermediate shaft 98th and a portion of the intermediate shaft 98.
  • FIG. 5 shows the hand tool 10 according to the invention with an open inner housing 16 and disassembled gear housing 56.
  • the inner housing 16 is cup-shaped.
  • the inner housing 16 comprises two inner housing half-shells 114, 116, which are separably connected to one another in a connecting plane.
  • the connection plane extends through the axis of rotation 54 of the tool 44 located in the tool holder 40 and through the axis of rotation 54 of the gear element 18 designed as a hammer tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)
  • General Details Of Gearings (AREA)

Description

Stand der TechnikState of the art

Als nächstliegender Stand der Technik wird EP2 127 820 A1 betrachtet. Aus der DE 34 05 922 ist eine Handwerkzeugmaschine, insbesondere ein Bohrhammer, mit einem Getriebe, einem Maschinengehäuse und einem innerhalb des Maschinengehäuses angeordneten Innengehäuse bekannt, wobei das Innengehäuse dazu vorgesehen ist, Getriebeelemente des Getriebes aufzunehmen. Hierbei werden die Getriebeelemente mittels Lagerelementen im Innengehäuse gelagert. Das Innengehäuse stützt die Getriebeelemente entlang einer axialen und entlang einer radialen Richtung ab.As the closest prior art is EP2 127 820 A1 considered. From the DE 34 05 922 is a hand tool, in particular a hammer drill, known with a gear, a machine housing and an inner housing disposed within the machine housing, wherein the inner housing is provided to receive transmission elements of the transmission. Here, the transmission elements are mounted by means of bearing elements in the inner housing. The inner housing supports the transmission elements along an axial and along a radial direction.

Offenbarung der ErfindungDisclosure of the invention

Die Erfindung gemäß Anspruch 1 geht aus von einer Handwerkzeugmaschine, insbesondere einem Bohr- und/oder Meißelhammer, mit einem Getriebe, mit einem Maschinengehäuse und mit einem innerhalb des Maschinengehäuses angeordneten Innengehäuse, das dazu vorgesehen ist, zumindest ein Getriebeelement des Getriebes zumindest teilweise aufzunehmen.The invention according to claim 1 is based on a hand tool, in particular a drill and / or chisel, with a gearbox, with a machine housing and with an inner housing disposed within the machine housing, which is provided to at least partially receive at least one transmission element of the transmission.

Es wird vorgeschlagen, dass eine Lagerung des zumindest einen Getriebeelements auf das Innengehäuse und auf das Maschinengehäuse aufgeteilt ist. Unter der Bezeichnung "Getriebe" soll hier insbesondere ein Mechanismus verstanden werden, der zumindest zwei Bauteile, insbesondere Getriebeelemente, umfasst, die mittels eines Zusammenwirkens dazu vorgesehen sind, zumindest einen Betrag einer Kraft, eines Drehmoments und/oder einer Drehzahl zu ändern und/oder mit deren Hilfe eine Bewegungsform, wie eine Rotation, in eine andere Bewegungsform, wie eine Translation, umgewandelt werden kann und/oder die dazu vorgesehen sind, Schlagimpulse zu übertragen. Die Bauteile, insbesondere Getriebeelemente, können hierbei als Zahnräder, Wellen, Schläger, Schlagbolzen, Hammerrohre, Taumellager, Lager und andere, dem Fachmann als sinnvoll erscheinende Bauteile ausgebildet sein. Vorteilhafterweise ist das zumindest eine Getriebeelement als Hammerrohr und/oder als Welle, insbesondere als Abtriebswelle und/oder Zwischenwelle, ausgebildet. In diesem Zusammenhang soll unter "vorgesehen" insbesondere speziell ausgestattet und/oder speziell ausgelegt verstanden werden.It is proposed that a bearing of the at least one transmission element is divided between the inner housing and the machine housing. The term "gear" should be understood here in particular a mechanism comprising at least two components, in particular transmission elements, which are provided by means of an interaction to at least change an amount of force, torque and / or speed and / or with their help one Movement form, such as a rotation, in another form of movement, such as translation, can be converted and / or are intended to transmit impact pulses. The components, in particular gear elements, can here be embodied as gears, shafts, clubs, firing pin, hammer tubes, wobble bearings, bearings and other components that appear to be appropriate to a person skilled in the art. Advantageously, the at least one transmission element is designed as a hammer tube and / or as a shaft, in particular as an output shaft and / or intermediate shaft. In this context, "intended" should be understood to mean in particular specially equipped and / or specially designed.

Der Begriff "Maschinengehäuse" soll hier insbesondere eine äußerste Hülle definieren, die Bauteile der Handwerkzeugmaschine umschließt, so dass die Bauteile der Handwerkzeugmaschine im Wesentlichen vor äußeren Einflüssen geschützt sind, wobei die Hülle dazu vorgesehen ist, einem Bediener der Handwerkzeugmaschine ein Greifen und eine Bedienung, insbesondere eine Führung, der Handwerkzeugmaschine zu ermöglichen. Hierbei kann das Maschinengehäuse aus einer Einheit gebildet sein, die zumindest zwei Gehäusehalbschalen umfasst, welche entlang einer Verbindungsebene zusammengefügt werden können. Besonders bevorzugt ist das Maschinengehäuse aus mehreren Einheiten, insbesondere aus einem Getriebegehäuse und einem Motorgehäuse, gebildet, wobei das Getriebegehäuse und das Motorgehäuse topfartig ausgebildet sind. Zur Bildung des Maschinengehäuses werden das topfartige Getriebegehäuse und das topfartige Motorgehäuse mittels dem Fachmann bekannter Verbindungselemente in einer Verbindungsebene miteinander verbunden. Es ist jedoch denkbar, dass das Getriebegehäuse und das Motorgehäuse jeweils zwei Gehäusehalbschalen aufweisen, die jeweils entlang einer Verbindungsebene zusammengefügt werden können. Das Maschinengehäuse kann aus verschiedenen, dem Fachmann als sinnvoll erscheinenden Materialien gebildet sein wie beispielsweise einem Metall, einem Nichteisenmetall, usw. vorzugsweise einem Kunststoff. Der Begriff "innerhalb" soll hier insbesondere eine räumliche Lage zumindest des Innengehäuses relativ zum Maschinengehäuse definieren, wobei das Innengehäuse im Wesentlichen von dem Maschinengehäuse umschlossen wird, insbesondere in einer gemeinsamen Ebene, die im Wesentlichen senkrecht zu einer Rotationsachse eines innerhalb des Innengehäuses angeordneten Getriebeelements und/oder zu einer Rotationsachse einer Werkzeugaufnahme der Handwerkzeugmaschine verläuft. Unter dem Begriff "teilweise aufzunehmen" soll hier insbesondere eine Anordnung des zumindest einen Getriebeelements in dem Innengehäuse verstanden werden, wobei zumindest Teilbereiche des zumindest einen Getriebeelements von dem Innengehäuse aufgenommen werden, insbesondere im Wesentlichen formschlüssig umgeben werden, so dass zumindest ein Bewegungsfreiheitsgrad des zumindest einen Getriebeelements zumindest teilweise eingeschränkt werden kann. Im Zusammenhang mit einer Lagerung des zumindest einen Getriebeelements soll unter "aufgeteilt" insbesondere eine Entkopplung des Innengehäuses von dem Maschinengehäuse hinsichtlich einer Lagerfunktion, insbesondere einer radialen Lagerfunktion, des zumindest einen Getriebeelements verstanden werden. Es wird damit zumindest eine Lagerkraft des zumindest einen Getriebeelements über das Innengehäuse und zumindest eine Lagerkraft des zumindest einen Getriebeelements entkoppelt vom Innengehäuse über das Maschinengehäuse abgestützt.The term "machine housing" should in particular define an outermost shell that encloses components of the handheld power tool, so that the components of the handheld power tool are substantially protected from external influences, wherein the shell is provided to an operator of the power tool gripping and operation, in particular a guide to enable the hand tool machine. In this case, the machine housing may be formed from a unit which comprises at least two housing half-shells, which can be joined together along a connecting plane. Particularly preferably, the machine housing is formed of a plurality of units, in particular of a gear housing and a motor housing, wherein the gear housing and the motor housing are pot-shaped. To form the machine housing, the cup-shaped gear housing and the pot-shaped motor housing are connected to one another by means of connecting elements known to the person skilled in the art in a connecting plane. However, it is conceivable that the gear housing and the motor housing each have two housing halves, which can each be joined together along a connecting plane. The machine housing may be formed from various materials that appear appropriate to those skilled in the art, such as a metal, a non-ferrous metal, etc., preferably a plastic. The term "inside" should in particular define a spatial position of at least the inner housing relative to the machine housing, wherein the inner housing is substantially enclosed by the machine housing, in particular in a common plane which is substantially perpendicular to a rotational axis of a disposed within the inner housing gear member and / or to a rotation axis of a tool holder of the power tool runs. The term "partially absorb" is to be understood here in particular an arrangement of the at least one transmission element in the inner housing, wherein at least portions of the at least one transmission element are received by the inner housing, in particular substantially positively surrounded, so that at least one degree of freedom of movement of the at least one Transmission element can be at least partially limited. In connection with a bearing of the at least one transmission element is to be understood by "split" in particular a decoupling of the inner housing of the machine housing with respect to a bearing function, in particular a radial bearing function, the at least one transmission element. It is thus at least a bearing force of the at least one transmission element via the inner housing and at least one bearing force of the at least one transmission element decoupled from the inner housing supported on the machine housing.

Mittels der erfindungsgemäßen Ausgestaltung der Handwerkzeugmaschine kann einer Aufsummierung von Toleranzen einer Lagerung von Getriebeelementen besonders vorteilhaft entgegengewirkt werden. Hierdurch kann ein von den Toleranzen abhängiges Spiel der Getriebeelemente besonders vorteilhaft gering gehalten werden. Insbesondere bei rotatorisch angetriebenen Getriebeelementen, wie insbesondere einer Abtriebswelle und/oder einer Zwischenwelle, kann durch die erfindungsgemäße Ausgestaltung vorteilhaft eine hohe Laufgenauigkeit, insbesondere eine hohe Rundlaufgenauigkeit, erreicht werden. Somit kann einer Vibrationsentwicklung vorteilhaft entgegengewirkt werden.By means of the embodiment of the hand tool according to the invention, a summation of tolerances of a bearing of gear elements can be counteracted particularly advantageously. In this way, a game of the transmission elements dependent on the tolerances can be kept particularly low. Particularly in the case of rotationally driven gear elements, such as, in particular, an output shaft and / or an intermediate shaft, a high running accuracy, in particular a high concentricity, can advantageously be achieved by the configuration according to the invention. Thus, a vibration development can be counteracted advantageous.

Vorzugsweise ist das Innengehäuse dazu vorgesehen, das zumindest eine Getriebeelement zumindest axial abzustützen. Unter der Bezeichnung "axial abzustützen" soll hier insbesondere eine Anordnung zumindest des Innengehäuses relativ zu dem zumindest einen Getriebeelement verstanden werden, wobei das zumindest eine Getriebeelement zumindest teilweise an dem Innengehäuses direkt oder indirekt anliegt, so dass ein Kraftfluss zwischen dem zumindest einen Getriebeelement und dem Innengehäuse stattfinden kann, insbesondere ein Kraftfluss, der im Wesentlichen parallel zur Rotationsachse eines innerhalb des Innengehäuses angeordneten Getriebeelements und/oder zur Rotationsachse einer Werkzeugaufnahme der Handwerkzeugmaschine verläuft. Ferner soll mittels der axialen Abstützung zumindest ein Bewegungsfreiheitsgrad des zumindest einen Getriebeelements entlang zumindest einer Richtung, insbesondere im Wesentlichen parallel zur Rotationsachse eines innerhalb des Innengehäuses angeordneten Getriebeelements und/oder zur Rotationsachse der Werkzeugaufnahme der Handwerkzeugmaschine, begrenzt werden. Der Ausdruck "im Wesentlichen parallel" soll hier insbesondere eine Richtung definieren, die gegenüber einer Bezugsrichtung eine Abweichung insbesondere kleiner als 8°, vorteilhaft kleiner als 5° und besonders vorteilhaft kleiner als 2° aufweist. Das Innengehäuse kann mit einer geringen Wandstärke ausgebildet werden, wodurch besonders vorteilhaft Material und Kosten eingespart werden können.Preferably, the inner housing is provided to support the at least one transmission element at least axially. The term "axially support" is to be understood here in particular an arrangement of at least the inner housing relative to the at least one transmission element, wherein the at least one transmission element at least partially directly or indirectly against the inner housing, so that a force flow between the at least one transmission element and the Inner housing can take place, in particular a force flow, which is substantially parallel to the axis of rotation of a disposed within the inner housing gear member and / or the axis of rotation of a tool holder the hand tool runs. Furthermore, by means of the axial support at least one degree of freedom of movement of the at least one transmission element along at least one direction, in particular substantially parallel to the axis of rotation of a disposed within the inner housing gear member and / or to the axis of rotation of the tool holder of the power tool to be limited. The term "essentially parallel" should in particular define a direction which, relative to a reference direction, has a deviation, in particular less than 8 °, advantageously less than 5 °, and particularly advantageously less than 2 °. The inner housing can be formed with a small wall thickness, which material and cost can be saved particularly advantageous.

Des Weiteren wird vorgeschlagen, dass das Maschinengehäuse dazu vorgesehen ist, das zumindest eine Getriebeelement entkoppelt vom Innengehäuse zumindest radial abzustützen. Unter der Bezeichnung "radial abzustützen" soll hier insbesondere eine Anordnung des Maschinengehäuses relativ zu dem zumindest einen Getriebeelement verstanden werden, wobei das zumindest eine Getriebeelement zumindest teilweise an dem Maschinengehäuse direkt oder indirekt anliegt, so dass ein Kraftfluss zwischen dem zumindest einen Getriebeelement und dem Maschinengehäuse stattfinden kann, insbesondere ein Kraftfluss, der im Wesentlichen senkrecht zur Rotationsachse eines innerhalb des Innengehäuses angeordneten Getriebeelements und/oder zur Rotationsachse der Werkzeugaufnahme der Handwerkzeugmaschine verläuft. Hierdurch können besonders vorteilhaft radiale Lagerkräfte, die von dem zumindest einen Getriebeelement ausgehen, am Maschinengehäuse abgestützt werden, so dass konstruktiv einfach eine Laufgenauigkeit des zumindest einen Getriebeelements positiv beeinflusst werden kann.Furthermore, it is proposed that the machine housing is provided to at least radially support the at least one gear element decoupled from the inner housing. The term "radially support" should be understood here in particular an arrangement of the machine housing relative to the at least one transmission element, wherein the at least one transmission element at least partially directly or indirectly to the machine housing, so that a power flow between the at least one transmission element and the machine housing can take place, in particular a force flow which is substantially perpendicular to the axis of rotation of a disposed within the inner housing gear member and / or to the axis of rotation of the tool holder of the power tool. As a result, radial bearing forces, which originate from the at least one gear element, can be supported on the machine housing in a particularly advantageous manner, so that a running accuracy of the at least one gear element can be positively influenced in terms of design.

Wie im Anspruch 1 dargestellt,
weist die Handwerkzeugmaschine zumindest ein Stützelement auf, das zumindest teilweise das Innengehäuse entlang einer radialen Richtung durchdringt. In diesem Zusammenhang soll unter einem "Stützelement" insbesondere ein Bauteil verstanden werden, das dazu vorgesehen ist, in einem Bauteil auftretende Kräfte und/oder Momente an ein anderes Bauteil zu übertragen. Unter einer "radialen Richtung" soll hier insbesondere eine Richtung verstanden werden, die im Wesentlichen senkrecht zur Rotationsachse eines innerhalb des Innengehäuses angeordneten Getriebeelements und/oder zur Rotationsachse der Werkzeugaufnahme der Handwerkzeugmaschine verläuft. In diesem Zusammenhang soll unter "im Wesentlichen senkrecht" eine Richtung verstanden werden, die mit einer Bezugsrichtung einen Winkel einschließt, der insbesondere ein Winkelmaß zwischen 85° und 95° aufweist. Besonders bevorzugt liegt das zumindest eine Stützelement am Maschinengehäuse an, so dass eine radiale Abstützung, insbesondere eine vom Innengehäuse entkoppelte radiale Abstützung, des zumindest einen Getriebeelements am Maschinengehäuse erreicht werden kann. Mittels der erfindungsgemäßen Ausgestaltung kann vorteilhaft eine Entkopplung des Innengehäuses von einer radialen Abstützung des zumindest einen Getriebeelements erreicht werden.As shown in claim 1,
For example, the handheld power tool has at least one support element that at least partially penetrates the inner housing along a radial direction. In this context, a "support element" is to be understood in particular as a component which is intended to transmit forces and / or torques occurring in one component to another component. A "radial direction" is to be understood here in particular as meaning a direction which is essentially perpendicular to the axis of rotation of one inside the inner housing arranged gear element and / or extends to the axis of rotation of the tool holder of the power tool. In this context, the term "substantially perpendicular" should be understood to mean a direction which encloses an angle with a reference direction, which in particular has an angle between 85 ° and 95 °. Particularly preferably, the at least one support element bears against the machine housing, so that a radial support, in particular a radial support decoupled from the inner housing, of the at least one gear element on the machine housing can be achieved. By means of the embodiment according to the invention, a decoupling of the inner housing from a radial support of the at least one transmission element can advantageously be achieved.

Vorzugsweise ist das Stützelement einstückig mit einem Stützelement ausgeführt, das dazu vorgesehen ist, das Innengehäuse axial abzustützen. Insbesondere ist das Stützelement einstückig mit einem Zwischenflansch ausgebildet, der dazu vorgesehen ist, das Innengehäuse axial abzustützen. Unter dem Begriff "einstückig" soll hier insbesondere einteilig und/oder aus einem Guss gebildet und/oder als ein Bauteil ausgebildet verstanden werden, welches lediglich unter Zuhilfenahme eines Trenn- und/oder Schneidwerkzeugs trennbar ist. In einer bevorzugten Ausgestaltung weist das Stützelement ein radial nach außen weisendes freies Ende auf. Es ist denkbar, entlang der radialen Richtung zwischen dem freien Ende des Stützelements und dem Maschinengehäuse ein Dämpfungsmittel anzuordnen, so dass Schwingungen, die von dem zumindest einen Getriebeelement ausgehen, besonders vorteilhaft gedämpft werden können. Das Dämpfungsmittel kann aus verschiedenen, dem Fachmann als sinnvoll erscheinenden Materialien ausgebildet sein. Besonders bevorzugt ist das Dämpfungsmittel aus einem Elastomer gebildet. Hierdurch kann vorteilhaft eine Entlastung eines Bedieners bei einem Betrieb der Handwerkzeugmaschine erreicht werden. Ferner können mittels der erfindungsgemäßen Ausgestaltung der Handwerkzeugmaschine vorteilhaft Bauraum, Kosten und Montageaufwand reduziert werden.Preferably, the support element is designed in one piece with a support element which is provided to axially support the inner housing. In particular, the support element is integrally formed with an intermediate flange, which is intended to axially support the inner housing. The term "integral" should in particular be formed in one piece and / or from a cast and / or formed as a component, which is separable only with the aid of a cutting and / or cutting tool. In a preferred embodiment, the support element has a radially outwardly facing free end. It is conceivable, along the radial direction between the free end of the support member and the machine housing to arrange a damping means, so that vibrations that emanate from the at least one transmission element, can be particularly advantageously damped. The damping means can be formed from various materials that appear appropriate to the person skilled in the art. Particularly preferably, the damping means is formed from an elastomer. As a result, a relief of an operator during operation of the power tool can advantageously be achieved. Furthermore, by means of the embodiment according to the invention of the portable power tool advantageous space, cost and installation costs can be reduced.

Zudem wird vorgeschlagen, dass das Innengehäuse zumindest eine radiale Ausnehmung aufweist, die dazu vorgesehen ist, das Stützelement zumindest teilweise aufzunehmen. Unter einer "radialen Ausnehmung" soll hier insbesondere eine durchgehende Ausnehmung einer Mantelfläche verstanden werden, durch die senkrecht zur Rotationsachse eines innerhalb des Innengehäuses angeordneten Getriebeelements und/oder zur Rotationsachse der Werkzeugaufnahme der Handwerkzeugmaschine ein Bauteil führbar ist. Mittels eines Zusammenwirkens der radialen Ausnehmung des Innengehäuses und dem Stützelement kann konstruktiv einfach eine vorteilhafte Abstützung realisiert werden.In addition, it is proposed that the inner housing has at least one radial recess which is provided to at least partially receive the support element. A "radial recess" is to be understood here in particular as a continuous recess of a lateral surface through which it is perpendicular to the axis of rotation of a disposed within the inner housing gear member and / or to the axis of rotation of the tool holder of the power tool, a component is feasible. By means of an interaction of the radial recess of the inner housing and the support element structurally simple advantageous support can be realized.

In einer besonders bevorzugten Ausgestaltung umfasst die Handwerkzeugmaschine einen Zwischenflansch, der zumindest ein Stützelement aufweist, das dazu vorgesehen ist, zumindest das Innengehäuse axial abzustützen. Hierdurch kann konstruktiv einfach eine axiale Abstützung des Innengehäuses erreicht werden. Es können vorteilhaft Bauteile zur Realsierung der axialen Abstützung des Innengehäuses eingespart werden.In a particularly preferred embodiment, the handheld power tool comprises an intermediate flange which has at least one support element which is provided to axially support at least the inner housing. As a result, structurally simple axial support of the inner housing can be achieved. It can be advantageously saved components for realizing the axial support of the inner housing.

Vorzugsweise weist die erfindungsgemäße Handwerkzeugmaschine zumindest zwei Lagerebenen auf, in denen das zumindest eine Getriebeelement entkoppelt vom Innengehäuse radial am Maschinengehäuse abgestützt ist. Die Lagerebenen verlaufen hierbei im Wesentlichen senkrecht zur Rotationsachse eines innerhalb des Innengehäuses angeordneten Getriebeelements und/oder zur Rotationsachse der Werkzeugaufnahme der Handwerkzeugmaschine. Vorzugsweise sind die zumindest zwei Lagerebenen entlang einer axialen Richtung, die im Wesentlichen parallel zur Rotationsachse eines innerhalb des Innengehäuses angeordneten Getriebeelements und/oder zur Rotationsachse der Werkzeugaufnahme der Handwerkzeugmaschine verläuft, voneinander beabstandet angeordnet, und zwar vorzugsweise mit einem axialen Abstand von zumindest 2 cm. Besonders bevorzugt ist in den zumindest zwei Lagerebenen jeweils zumindest ein Radiallager angeordnet. Hierdurch kann ein besonders vorteilhafter Kraftfluss erreicht werden.Preferably, the hand tool according to the invention has at least two storage levels, in which the at least one transmission element is decoupled from the inner housing radially supported on the machine housing. The bearing planes in this case run essentially perpendicular to the axis of rotation of a gear element arranged within the inner housing and / or to the axis of rotation of the tool receptacle of the hand tool machine. Preferably, the at least two bearing planes along an axial direction, which is substantially parallel to the axis of rotation of a disposed within the inner housing transmission element and / or to the axis of rotation of the tool holder of the power tool, spaced from each other, preferably with an axial distance of at least 2 cm. Particularly preferably, at least one radial bearing is arranged in the at least two storage levels. In this way, a particularly advantageous power flow can be achieved.

Des Weiteren wird vorgeschlagen, dass das Innengehäuse schalenartig ausgebildet ist. Unter "schalenartig" soll hier insbesondere ein Aufbau verstanden werden, bei dem das Innengehäuse aus zumindest zwei Gehäusehalbschalen ausgebildet ist, die entlang einer Verbindungsebene mittels dem Fachmann bekannter Verbindungselemente miteinander verbunden werden können. Besonders bevorzugt verläuft die Verbindungsebene der Gehäusehalbschalen des Innengehäuses durch die Rotationsachse eines innerhalb des Innengehäuses angeordneten Getriebeelements und/oder durch die Rotationsachse der Werkzeugaufnahme der Handwerkzeugmaschine. Hierdurch kann vorteilhaft eine Zugänglichkeit von im Innengehäuse angeordneten Bauteilen, insbesondere Getriebeelementen, zu Wartungs- und/oder zu Montage- und/oder zu Reparaturzwecken erreicht werden.Furthermore, it is proposed that the inner housing is formed like a shell. The term "shell-like" is to be understood here in particular as meaning a structure in which the inner housing is formed from at least two housing half-shells, which can be connected to one another along a connecting plane by means of connecting elements known to the person skilled in the art. Particularly preferably, the connecting plane of the housing half-shells of the inner housing extends through the axis of rotation of a transmission element arranged within the inner housing and / or through the axis of rotation of the tool holder of the power tool. In this way, advantageously, accessibility of components arranged in the inner housing, in particular gear elements, for maintenance and / or assembly and / or repair purposes can be achieved.

Zeichnungdrawing

Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Die Zeichnung, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the drawing. In the drawing, an embodiment of the invention is shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Es zeigen:

Fig. 1
eine erfindungsgemäße Handwerkzeugmaschine,
Fig. 2
die erfindungsgemäße Handwerkzeugmaschine mit geöffnetem Maschinengehäuse,
Fig. 3
eine Detailansicht eines montierten Innengehäuses der erfindungsgemäßen Handwerkzeugmaschine,
Fig. 4
eine schematische Schnittdarstellung des Maschinengehäuses entlang der Linie IV-IV aus Figur 2 der erfindungsgemäßen Handwerkzeugmaschine und
Fig. 5
die erfindungsgemäße Handwerkzeugmaschine mit geöffnetem Innengehäuse.
Show it:
Fig. 1
a hand tool according to the invention,
Fig. 2
the hand tool of the invention with the machine housing open,
Fig. 3
a detailed view of a mounted inner housing of the hand tool of the invention,
Fig. 4
a schematic sectional view of the machine housing along the line IV-IV FIG. 2 the hand tool of the invention and
Fig. 5
the hand tool of the invention with an open inner housing.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Figur 1 zeigt eine erfindungsgemäße Handwerkzeugmaschine 10, die als Bohr- und/oder Meißelhammer ausgebildet ist. Die Handwerkzeugmaschine 10 umfasst ein Getriebe 12, ein Maschinengehäuse 14 und ein innerhalb des Maschinengehäuses 14 angeordnetes Innengehäuse 16 (Figur 2), das dazu vorgesehen ist, ein Getriebeelement 18 des Getriebes 12 aufzunehmen. Hierbei ist eine Lagerung des Getriebeelements 18 auf das Innengehäuse 16 und das Maschinengehäuse 14 aufgeteilt. Das Getriebe 12 umfasst eine Schlagwerkeinheit 36 zu einer Erzeugung eines Schlagimpulses. Das Getriebe 12 ist mit einer ein Antriebsmoment erzeugenden Antriebseinheit 38 verbunden (hier nicht näher dargestellt). Der Schlagimpuls der Schlagwerkeinheit 36 und eine Rotation einer Zwischenwelle der Schlagwerkeinheit 36, eines Hammerrohrs der Schlagwerkeinheit 36 und einer Werkzeugaufnahme 40 der Handwerkzeugmaschine 10 werden auf einer, dem Fachmann bekannten Art und Weise erzeugt, so dass hier nicht näher darauf eingegangen wird. Die Werkzeugaufnahme 40 der Handwerkzeugmaschine 10 ist in einem Frontbereich 42 der Handwerkzeugmaschine 10 angeordnet und ist dazu vorgesehen, ein Werkzeug 44 aufzunehmen. An einer dem Frontbereich 42 abgewandten Seite 46 umfasst die Handwerkzeugmaschine 10 einen Haupthandgriff 48 zu einem Betätigen der Handwerkzeugmaschine 10 und zu einer Krafteinleitung einer von einem Bediener ausgehenden Kraft auf die Handwerkzeugmaschine 10. Die Handwerkzeugmaschine 10 ist ferner mit einem lösbaren Zusatzhandgriff 50 ausgeführt. Hierbei kann der Zusatzhandgriff 50 über eine Rastverbindung oder andere, dem Fachmann als sinnvoll erscheinende Verbindungen lösbar an der Handwerkzeugmaschine 10 befestigt sein. Der Zusatzhandgriff 50 ist zu einer Führung der Handwerkzeugmaschine 10 durch den Bediener in der Nähe der Werkzeugaufnahme 40 an der Handwerkzeugmaschine 10 angeordnet. Eine Haupterstreckungsrichtung 52 der Handwerkzeugmaschine 10 erstreckt sich von dem Haupthandgriff 48 in Richtung der Werkzeugaufnahme 40. Die Haupterstreckungsrichtung 52 verläuft hierbei parallel zu einer Rotationsachse 54 des in der Werkzeugaufnahme 40 befindlichen Werkzeugs 44 und zu einer Rotationsachse 54 des als Hammerrohr ausgebildeten Getriebeelements 18. Innerhalb des als Hammerrohr ausgebildeten Getriebeelements 18 sind ein Schlagbolzen, ein Schläger und ein Hammerbolzen zur Übertragung des Schlagimpulses auf das Werkzeug 44 angeordnet (hier nicht näher dargestellt). FIG. 1 shows a hand tool 10 according to the invention, which is designed as a drill and / or chisel hammer. The hand tool 10 comprises a gear 12, a machine housing 14 and an inner housing 16 (FIG. FIG. 2 ), which is intended to be a transmission element 18 of the transmission 12 record. Here, a bearing of the transmission element 18 is divided on the inner housing 16 and the machine housing 14. The transmission 12 includes a percussion unit 36 for generating a shock pulse. The transmission 12 is connected to a drive torque generating drive unit 38 (not shown here). The impact impulse of the percussion mechanism unit 36 and a rotation of an intermediate shaft of the percussion unit 36, a hammer tube of the percussion unit 36 and a tool holder 40 of the power tool 10 are generated in a manner known to those skilled in the art, so that will not be discussed further here. The tool holder 40 of the hand tool 10 is arranged in a front region 42 of the hand tool 10 and is intended to receive a tool 44. On a side 46 facing away from the front region 42, the handheld power tool 10 comprises a main handle 48 for actuating the handheld power tool 10 and for applying a force emanating from an operator to the handheld power tool 10. The handheld power tool 10 is also designed with a detachable auxiliary handle 50. In this case, the auxiliary handle 50 can be detachably fastened to the handheld power tool 10 via a latching connection or other connections which appear meaningful to a person skilled in the art. The auxiliary handle 50 is arranged to guide the hand tool 10 by the operator in the vicinity of the tool holder 40 on the power tool 10. A main extension direction 52 of the power tool 10 extends from the main handle 48 in the direction of the tool holder 40. The main extension 52 runs parallel to a rotation axis 54 of the tool holder 40 located in the tool 44 and a rotation axis 54 of the hammer tube designed as a transmission element 18. Within the designed as a hammer tube gear member 18 are a firing pin, a racket and a hammer pin for transmitting the impact pulse on the tool 44 are arranged (not shown here).

Figur 2 zeigt die erfindungsgemäße Handwerkzeugmaschine 10 mit geöffnetem Maschinengehäuse 14. Das Maschinengehäuse 14 umfasst ein topfartiges Getriebegehäuse 56 und ein topfartiges Motorgehäuse 58. Das Getriebegehäuse 56 und das Motorgehäuse 58 sind in einem montierten Zustand in einer Verbindungsebene 60 auf einer, dem Fachmann bekannten Art und Weise trennbar miteinander verbunden. Die Verbindungsebene 60 verläuft senkrecht zur Rotationsachse 54 des in der Werkzeugaufnahme 40 befindlichen Werkzeugs 44 und zur Rotationsachse 54 des als Hammerrohr ausgebildeten Getriebeelements 18. Das Motorgehäuse 58 ist teilweise einstückig mit dem Haupthandgriff 48 ausgebildet. Ferner ist innerhalb des Motorgehäuses 58 die als Elektromotor ausgebildete Antriebseinheit 38 angeordnet (hier nicht näher dargestellt). Das in einem montierten Zustand des Getriebegehäuses 56 innerhalb des Getriebegehäuses 56 angeordnete Innengehäuse 16 ist dazu vorgesehen, das als Hammerrohr ausgebildete Getriebeelement 18 axial abzustützen. FIG. 2 The machine housing 14 comprises a pot-like gear housing 56 and a pot-like motor housing 58. The gear housing 56 and the motor housing 58 are in a mounted state in a connecting plane 60 in a manner known in the art separable connected with each other. The connecting plane 60 runs perpendicular to the axis of rotation 54 of the tool 44 located in the tool holder 40 and to the axis of rotation 54 of the hammer tube designed as a transmission element 18. The motor housing 58 is partially formed integrally with the main handle 48. Further, within the motor housing 58 designed as an electric motor drive unit 38 is arranged (not shown here). The arranged in an assembled state of the transmission case 56 within the transmission housing 56 inner housing 16 is provided to axially support the transmission element 18 designed as a hammer tube.

Das als Hammerrohr ausgebildete Getriebeelement 18 ist mittels eines als Lagerbuchse 64 ausgebildeten Lagerelements 66 und eines als Kugellager 68 ausgebildeten Lagerelements 70 innerhalb des Innengehäuses 16 gelagert (Figur 5). Die Lagerbuchse 64 ist hierbei in einem Zwischenflansch 30 der Handwerkzeugmaschine 10 angeordnet, der teilweise innerhalb des montierten Innengehäuses 16 angeordnet ist. Ferner weist der Zwischenflansch 30 ein Stützelement 20, 24 auf, das dazu vorgesehen ist, das Innengehäuse 16 axial abzustützen. Das Stützelement 20, 24 ist hierbei einstückig mit dem Zwischenflansch 30 ausgebildet. Das Innengehäuse 16 weist eine radiale Ausnehmung 28 auf, die dazu vorgesehen ist, das Stützelement 20, 24 teilweise aufzunehmen. Des Weiteren weist das Innengehäuse 16 zu einer Aufnahme des Kugellagers 68 und des Zwischenflanschs 30 Nuten 72 auf, die sich entlang einer Umfangsrichtung 74 im Innengehäuse 16 erstrecken. Die Umfangsrichtung 74 verläuft in einer Ebene, die sich senkrecht zur Rotationsachse 54 des in der Werkzeugaufnahme 40 befindlichen Werkzeugs 44 und zur Rotationsachse 54 des als Hammerrohr ausgebildeten Getriebeelements 18 erstreckt. Mittels eines Zusammenwirkens von Randbereichen 76 der Nuten 72, den radialen Ausnehmungen 28 des Innengehäuses 16 und dem Stützelement 20, 24 stützt sich das Innengehäuse 16 entlang der axialen Richtung 62 am Zwischenflansch 30 ab. Das als Hammerrohr ausgebildete Getriebeelement 18 stütz sich über das in einer der Nuten 72 des Innengehäuses 16 angeordnete Kugellager 68 und einen der Randbereiche 76 der Nuten 72 axial am Innengehäuse 16 ab.Trained as a hammer tube transmission element 18 is mounted by means of a bearing bush 64 designed as a bearing element 66 and a ball bearing 68 formed as a bearing member 70 within the inner housing 16 ( FIG. 5 ). The bearing bush 64 is hereby arranged in an intermediate flange 30 of the portable power tool 10, which is arranged partially within the assembled inner housing 16. Furthermore, the intermediate flange 30 has a support element 20, 24, which is intended to support the inner housing 16 axially. The support member 20, 24 is in this case formed integrally with the intermediate flange 30. The inner housing 16 has a radial recess 28 which is provided to partially receive the support member 20, 24. Furthermore, the inner housing 16 to a receptacle of the ball bearing 68 and the intermediate flange 30 grooves 72, which extend along a circumferential direction 74 in the inner housing 16. The circumferential direction 74 extends in a plane which extends perpendicular to the axis of rotation 54 of the tool 44 located in the tool holder 40 and to the axis of rotation 54 of the gear element 18 designed as a hammer tube. By means of an interaction of edge regions 76 of the grooves 72, the radial recesses 28 of the inner housing 16 and the support member 20, 24, the inner housing 16 is supported along the axial direction 62 on the intermediate flange 30. The trained as a hammer tube gear member 18 is supported via the arranged in one of the grooves 72 of the inner housing 16 ball bearing 68 and one of the edge portions 76 of the grooves 72 axially on the inner housing 16.

Des Weiteren weist die Handwerkzeugmaschine 10 ein Stützelement 20, 24 auf, das teilweise das Innengehäuse 16 entlang einer radialen Richtung 22 durchdringt.Furthermore, the handheld power tool 10 has a support element 20, 24, which partially penetrates the inner housing 16 along a radial direction 22.

Dieses Stützelement 20,24 ist einstückig mit dem Stützelement 20, 24 ausgeführt, das dazu vorgesehen ist, das Innengehäuse 16 axial abzustützen. Das Stützelement 20, 24 erstreckt sich in einem montierten Zustand des Maschinengehäuses 14 und des Innengehäuses 16 ausgehend vom Zwischenflansch 30 in Richtung des Getriebegehäuses 56 durch die Ausnehmung 28 des Innengehäuses 16 hindurch. Das Stützelement 20, 24 weist ein radial nach außen weisendes freies Ende 26 auf, welches in einem montierten Zustand der Handwerkzeugmaschine 10 an dem Getriebegehäuse 56 anliegt. Das als Hammerohr ausgebildete Getriebeelement 18 wird entkoppelt vom Innengehäuse 16 radial am Maschinengehäuse 14, insbesondere am Getriebegehäuse 56, abgestützt. Insgesamt weist der Zwischenflansch 30 sechs Stützelemente 20, 24 auf, die teilweise einstückig mit dem Zwischenflansch 30 ausgebildet sind. Das Innengehäuse 16 weist hierbei sechs Ausnehmungen 28 zur Aufnahme der sechs Stützelemente 20, 24 auf. Die sechs Stützelemente 20, 24 sind hierbei gleichmäßig entlang der Umfangsrichtung 74 am Zwischenflansch 30 angeordnet. Ferner sind die sechs Ausnehmungen 28 ebenfalls gleichmäßig entlang der Umfangsrichtung 74 am Innengehäuse 16 angeordnet. Es ist jedoch denkbar, dass je nach Anforderung mehr als sechs Stützelemente 20, 24 oder weniger als sechs Stützelemente 20, 24 vorgesehen sind, so dass der Fachmann eine für eine bestimmte Anforderung sinnvolle Anzahl an Stützelementen 20, 24 und Ausnehmungen 28 vorsehen wird.This support element 20,24 is integral with the support member 20, 24, which is intended to support the inner housing 16 axially. The support member 20, 24 extends in an assembled state of the machine housing 14 and the inner housing 16, starting from the intermediate flange 30 in the direction of the transmission housing 56 through the recess 28 of the inner housing 16 therethrough. The support member 20, 24 has a radially outwardly facing free end 26 which rests in an assembled state of the power tool 10 to the transmission housing 56. Trained as a hammer tube transmission element 18 is decoupled from the inner housing 16 radially on the machine housing 14, in particular on the transmission housing 56, supported. Overall, the intermediate flange 30 six support elements 20, 24, which are partially formed integrally with the intermediate flange 30. The inner housing 16 in this case has six recesses 28 for receiving the six support elements 20, 24. The six support elements 20, 24 are in this case arranged uniformly along the circumferential direction 74 on the intermediate flange 30. Furthermore, the six recesses 28 are also arranged uniformly along the circumferential direction 74 on the inner housing 16. However, it is conceivable that, depending on the requirement, more than six support elements 20, 24 or less than six support elements 20, 24 are provided, so that the skilled person will provide a meaningful number of support elements 20, 24 and recesses 28 for a specific requirement.

Figur 3 zeigt eine Detailansicht des montierten Innengehäuses 16 der erfindungsgemäßen Handwerkzeugmaschine 10, wobei das Getriebegehäuse 56 demontiert ist. An einer der Werkzeugaufnahme 40 zugewandten Seite 78 des Innengehäuses 16 ist in einem montierten Zustand des Innengehäuses 16 das Kugellager 68 zur Lagerung des als Hammerrohr ausgebildeten Getriebeelements 18 in einer der Nuten 72 angeordnet. Das Innengehäuse 16 weist an dieser Seite 78 eine Ausnehmung 80 auf, die dazu vorgesehen ist, ein Radialelement 82 des Getriebegehäuses 56 aufzunehmen. Insgesamt weist das Innengehäuse sechs Ausnehmungen 80 zur Aufnahme eines Radialelements 82 auf. Das Radialelement 82 ist als radialer Fortsatz 84 des Getriebegehäuses 56 ausgebildet (Figur 4). Der radiale Fortsatz 84 ist an einer Innenseite 86 des Getriebegehäuses 56 angeordnet, die in einem montierten Zustand des Getriebegehäuses 56 zum Innengehäuse 16 weist. Insgesamt weist das Getriebegehäuse 56 sechs radiale Fortsätze 84 auf, die in einem montierten Zustand des Getriebegehäuses 56 jeweils in eine der sechs Ausnehmungen 80 des Innengehäuses 16 eingreifen. Es ist jedoch denkbar, dass je nach Anforderung mehr als sechs radiale Fortsätze 84 oder weniger als sechs radiale Fortsätze 84 vorgesehen sind, so dass der Fachmann eine für eine bestimmte Anforderung sinnvolle Anzahl an radialen Fortsätzen 84 und Ausnehmungen 80 vorsehen wird. Das im Innengehäuse 16 angeordnete Kugellager 68 umfasst einen Außenring 88, der im montierten Zustand des Getriebegehäuses 56 an den radialen Fortsätzen 84 anliegt. Es ist denkbar, dass zwischen den radialen Fortsätzen 84 des Getriebegehäuses 56 und dem Außenring 88 des Kugellagers 68 Dämpfungsmittel angeordnete sind, die dazu vorgesehen sind, Schwingungen zu dämpfen. Mittels eines Zusammenwirkens des Außenrings 88 des Kugellagers 68 und der radialen Fortsätze 84 des Getriebegehäuses 56 stütz sich das als Hammerrohr ausgebildete Getriebeelement 18 radial am Getriebegehäuse 56 ab. Hierdurch werden radiale Kräfte, die von dem als Hammerrohr ausgebildeten Getriebeelement 18 ausgehen, in das Getriebegehäuse 56 übertragen. Die radialen Fortsätze 84 des Getriebegehäuses 56 werden bei einer Montage des Getriebegehäuses 56 entlang der axialen Richtung 62 in die Ausnehmungen 80 des bereits montierten Innengehäuses 16 eingeschoben. FIG. 3 shows a detailed view of the assembled inner housing 16 of the hand tool 10 according to the invention, wherein the gear housing 56 is dismantled. On one of the tool holder 40 facing side 78 of the inner housing 16, the ball bearing 68 for supporting the formed as a hammer tube gear member 18 in one of the grooves 72 is arranged in an assembled state of the inner housing 16. The inner housing 16 has on this side 78 a recess 80 which is intended to receive a radial element 82 of the gear housing 56. Overall, the inner housing has six recesses 80 for receiving a radial element 82. The radial element 82 is formed as a radial extension 84 of the transmission housing 56 ( FIG. 4 ). The radial extension 84 is arranged on an inner side 86 of the transmission housing 56, which faces the inner housing 16 in an assembled state of the transmission housing 56. Overall, the gear housing 56 six radial extensions 84 which mounted in one State of the gear housing 56 each engage in one of the six recesses 80 of the inner housing 16. However, it is conceivable that more than six radial extensions 84 or fewer than six radial extensions 84 are provided depending on the requirement, so that the skilled person will provide a meaningful number of radial projections 84 and recesses 80 for a specific requirement. The arranged in the inner housing 16 ball bearing 68 includes an outer ring 88 which rests in the mounted state of the gear housing 56 to the radial extensions 84. It is conceivable that between the radial extensions 84 of the gear housing 56 and the outer ring 88 of the ball bearing 68 damping means are arranged, which are intended to dampen vibrations. By means of an interaction of the outer ring 88 of the ball bearing 68 and the radial extensions 84 of the gear housing 56, designed as a hammer tube gear member 18 supports radially on the gear housing 56 from. As a result, radial forces which emanate from the transmission element 18 embodied as a hammer tube are transmitted to the transmission housing 56. The radial extensions 84 of the gear housing 56 are inserted in an assembly of the gear housing 56 along the axial direction 62 in the recesses 80 of the already mounted inner housing 16.

Des Weiteren umfasst das Innengehäuse 16 einen Lagerfortsatz 90, der sich entlang einer radialen Richtung 22 erstreckt. In einem montierten Zustand des Getriebegehäuses 56 erstreckt sich der Lagerfortsatz 90 ausgehend vom Innengehäuse 16 in Richtung des Getriebegehäuses 56. Der Lagerfortsatz 90 ist dazu vorgesehen, ein als Kugellager 92 ausgebildetes Lagerelement 94 aufzunehmen. Hierzu weist der Lagerfortsatz 90 eine Nut 96 auf, die entlang der Umfangsrichtung 74 im Lagerfortsatz 90 des Innengehäuses 16 verläuft. Das Kugellager 92 ist dazu vorgesehen, eine als Zwischenwelle 98 ausgebildete Welle 100 des Getriebes 12 zu lagern. Eine axiale Abstützung der Zwischenwelle 98 erfolgt hierbei mittels eines Zusammenwirkens des Kugellagers 92 und Randbereichen 102 der Nut 96 im Innengehäuse 16. Zu einer radialen Abstützung der Zwischenwelle 98 weist der Lagerfortsatz 90 eine Ausnehmung 104 auf, die dazu vorgesehen ist, ein Abstützelement 106 des Getriebegehäuses 56 aufzunehmen. Insgesamt umfasst der Lagerfortsatz 90 drei Ausnehmungen 104 (Figur 4) und das Getriebegehäuse 56 umfasst drei Abstützelemente 106, wobei jeweils eine Ausnehmung 104 ein Abstützelement 106 aufnimmt.Furthermore, the inner housing 16 comprises a bearing extension 90, which extends along a radial direction 22. In a mounted state of the gear housing 56, the bearing extension 90 extends from the inner housing 16 in the direction of the transmission housing 56. The bearing extension 90 is provided to receive a ball bearing 92 designed as a bearing element 94. For this purpose, the bearing extension 90 has a groove 96 which runs along the circumferential direction 74 in the bearing extension 90 of the inner housing 16. The ball bearing 92 is intended to support a formed as an intermediate shaft 98 shaft 100 of the transmission 12. An axial support of the intermediate shaft 98 in this case takes place by means of an interaction of the ball bearing 92 and edge portions 102 of the groove 96 in the inner housing 16. For a radial support of the intermediate shaft 98, the bearing extension 90 has a recess 104 which is provided to a support member 106 of the transmission housing 56 record. Overall, the bearing extension 90 comprises three recesses 104 (FIG. FIG. 4 ) and the transmission housing 56 comprises three support elements 106, wherein in each case a recess 104 receives a support element 106.

Die Abstützelemente 106 des Getriebegehäuses 56 sind dazu vorgesehen, die Zwischenwelle 98 über das Kugellager 92 radial abzustützen. Die Abstützelemente 106 des Getriebegehäuses 56 werden bei einer Montage des Getriebegehäuses 56 entlang der axialen Richtung 62 in die Ausnehmungen 104 des Lagerfortsatzes 90 des bereits montierten Innengehäuses 16 eingeschoben.The support elements 106 of the gear housing 56 are provided to radially support the intermediate shaft 98 via the ball bearing 92. The support members 106 of the gear housing 56 are inserted in an assembly of the gear housing 56 along the axial direction 62 in the recesses 104 of the bearing extension 90 of the already mounted inner housing 16.

Die Handwerkzeugmaschine 10 umfasst zwei Lagerebenen 32, 34, eine erste Lagerebene 32 und eine zweite Lagerebene 34, in denen das als Hammerrohr ausgebildete Getriebeelement 18 entkoppelt vom Innengehäuse 16 radial am Maschinengehäuse 14 abgestützt ist. Die zwei Lagerebenen 32, 34 verlaufen hierbei senkrecht zur Rotationsachse 54 des in der Werkzeugaufnahme 40 befindlichen Werkzeugs 44 und zur Rotationsachse 54 des als Hammerrohr ausgebildeten Getriebeelements 18. In der ersten Lagerebene 32 sind in einem montierten Zustand des Maschinengehäuses 14 und des Innengehäuses 16 die Stützelemente 20, 24, ein Teilbereich des Zwischenflanschs 30, die Lagerbuchse 64 und ein Teilbereich des als Hammerrohr ausgebildeten Getriebeelements 18 angeordnet. In der zweiten Lagerebene 34 sind in einem montierten Zustand des Maschinengehäuses 14 und des Innengehäuses 16 die radialen Fortsätze 84 des Getriebegehäuses 56, das Kugellager 68 und ein Teilbereich des als Hammerrohr ausgebildeten Getriebeelements 18 angeordnet.The hand-held power tool 10 comprises two bearing levels 32, 34, a first bearing plane 32 and a second bearing plane 34, in which the transmission element designed as a hammer tube is decoupled from the inner housing 16 radially on the machine housing 14. The two bearing planes 32, 34 in this case run perpendicular to the axis of rotation 54 of the tool holder 40 located in the tool 44 and the axis of rotation 54 of the hammer tube designed as a transmission element 18. In the first bearing plane 32 are in a mounted state of the machine housing 14 and the inner housing 16, the support elements 20, 24, a portion of the intermediate flange 30, the bearing bush 64 and a portion of the hammer tube designed as a transmission element 18 is arranged. In the second bearing plane 34, in a mounted state of the machine housing 14 and the inner housing 16, the radial extensions 84 of the gear housing 56, the ball bearings 68 and a portion of the transmission element 18 designed as a hammer tube are arranged.

Figur 4 zeigt eine schematische Schnittdarstellung des Maschinengehäuses 14, insbesondere des Getriebegehäuses 56, der erfindungsgemäßen Handwerkzeugmaschine 10. Die radialen Fortsätze 84 des Getriebegehäuses 56 sind in einer Ebene 108 (Figur 2) angeordnet, die in einem montierten Zustand des Getriebegehäuses 56 senkrecht zur Rotationsachse 54 des in der Werkzeugaufnahme 40 befindlichen Werkzeugs 44 und zur Rotationsachse 54 des als Hammerrohr ausgebildeten Getriebeelements 18 verläuft. Ferner sind die radialen Fortsätze 84 gleichmäßig entlang der Umfangsrichtung 74 in der Ebene 108 angeordnet. Die Ebene 108 bildet in einem montierten Zustand des Getriebegehäuses 56 die zweite Lagerebene 34 der Handwerkzeugmaschine 10. FIG. 4 2 shows a schematic sectional representation of the machine housing 14, in particular of the gear housing 56, of the handheld power tool 10 according to the invention. The radial extensions 84 of the gear housing 56 are arranged in a plane 108 (FIG. FIG. 2 ) arranged in an assembled state of the gear housing 56 perpendicular to the axis of rotation 54 of the tool holder 40 located in the tool 44 and the axis of rotation 54 of the hammer tube designed as a transmission element 18. Furthermore, the radial extensions 84 are arranged uniformly along the circumferential direction 74 in the plane 108. The plane 108 forms the second bearing plane 34 of the power tool 10 in an assembled state of the gear housing 56.

Die Abstützelemente 106 des Getriebegehäuses 56 sind in einer Ebene 110 angeordnet, die parallel zur Ebene 108 verläuft (Figur 2), in der die radialen Fortsätze 84 des Getriebegehäuses 56 angeordnet sind. Hierbei ist die Ebene 110, in der die Abstützelemente 106 angeordnet sind, entlang der axialen Richtung 62 in Richtung des Haupthandgriffs 48 beabstandet zur Ebene 108 angeordnet, die die radialen Fortsätze 84 des Getriebegehäuses 56 aufweist. Die Ebene 110 bildet in einem montierten Zustand des Getriebegehäuses 56 eine dritte Lagerebene 112 der Handwerkzeugmaschine 10. Die dritte Lagerebene 112 umfasst in einem montierten Zustand der Handwerkzeugmaschine 10 einen Teilbereich des Lagerfortsatzes 90 des Innengehäuses 16, die Abstützelemente 106, das Kugellager 92 der Zwischenwelle 98 und einen Teilbereich der Zwischenwelle 98.The support elements 106 of the gear housing 56 are arranged in a plane 110 that runs parallel to the plane 108 ( FIG. 2 ), in which the radial extensions 84 the transmission housing 56 are arranged. Here, the plane 110 in which the support elements 106 are arranged, along the axial direction 62 in the direction of the main handle 48 spaced from the plane 108, which has the radial extensions 84 of the gear housing 56. The plane 110 forms in a mounted state of the gear housing 56, a third bearing plane 112 of the power tool 10. The third bearing plane 112 comprises in a mounted state of the power tool 10, a portion of the bearing extension 90 of the inner housing 16, the support members 106, the ball bearing 92 of the intermediate shaft 98th and a portion of the intermediate shaft 98.

Figur 5 zeigt die erfindungsgemäße Handwerkzeugmaschine 10 mit geöffnetem Innengehäuse 16 und demontiertem Getriebegehäuse 56. Das Innengehäuse 16 ist schalenartig ausgebildet. Hierbei umfasst das Innengehäuse 16 zwei Innengehäusehalbschalen 114, 116, die in einer Verbindungsebene trennbar miteinander verbunden sind. Die Verbindungsebene verläuft durch die Rotationsachse 54 des in der Werkzeugaufnahme 40 befindlichen Werkzeugs 44 und durch die Rotationsachse 54 des als Hammerrohr ausgebildeten Getriebeelements 18. FIG. 5 shows the hand tool 10 according to the invention with an open inner housing 16 and disassembled gear housing 56. The inner housing 16 is cup-shaped. In this case, the inner housing 16 comprises two inner housing half-shells 114, 116, which are separably connected to one another in a connecting plane. The connection plane extends through the axis of rotation 54 of the tool 44 located in the tool holder 40 and through the axis of rotation 54 of the gear element 18 designed as a hammer tube.

Claims (9)

  1. Portable power tool, in particular a rotary and/or demolition hammer, having a transmission (12), having a machine housing (14) and having an inner housing (16) arranged inside the machine housing (14), said inner housing (16) being provided to at least partially receive at least one transmission element (18) of the transmission (12), wherein the at least one transmission element (18) is mounted in a manner distributed between the inner housing (16) and the machine housing (14), characterized by at least one supporting element (20, 24) which penetrates at least partially through the inner housing (16) in a radial direction (22).
  2. Portable power tool according to Claim 1, characterized in that the inner housing (16) is provided to at least axially support the at least one transmission element (18).
  3. Portable power tool according to either of the preceding claims, characterized in that the machine housing (14) is provided to at least radially support the at least one transmission element (18) in a manner uncoupled from the inner housing (16).
  4. Portable power tool according to one of the preceding claims, characterized in that the supporting element (20, 24) is configured in one piece with a supporting element (20, 24) which is provided to axially support the inner housing (16).
  5. Portable power tool according to one of the preceding claims, characterized in that the supporting element (20, 24) has a free end (26) that is directed radially outward.
  6. Portable power tool according to one of the preceding claims, characterized in that the inner housing (16) has at least one radial cutout (28) which is provided to at least partially receive the supporting element (20, 24).
  7. Portable power tool according to one of the preceding claims, characterized by an intermediate flange (30) which has at least one supporting element (20, 24) which is provided to axially support at least the inner housing (16).
  8. Portable power tool according to one of the preceding claims, characterized by at least two bearing planes (32, 34) in which the at least one transmission element (18) is supported radially on the machine housing (14) in a manner uncoupled from the inner housing (16).
  9. Portable power tool according to one of the preceding claims, characterized in that the inner housing (16) is formed in a shell-like manner.
EP10773269.5A 2009-12-15 2010-10-15 Hand-power tool Active EP2512752B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009054640A DE102009054640A1 (en) 2009-12-15 2009-12-15 Hand tool
PCT/EP2010/065511 WO2011072907A1 (en) 2009-12-15 2010-10-15 Hand-power tool

Publications (2)

Publication Number Publication Date
EP2512752A1 EP2512752A1 (en) 2012-10-24
EP2512752B1 true EP2512752B1 (en) 2013-09-04

Family

ID=43446430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10773269.5A Active EP2512752B1 (en) 2009-12-15 2010-10-15 Hand-power tool

Country Status (6)

Country Link
US (1) US9527201B2 (en)
EP (1) EP2512752B1 (en)
CN (1) CN102655991B (en)
DE (1) DE102009054640A1 (en)
RU (1) RU2012129661A (en)
WO (1) WO2011072907A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2749381B1 (en) * 2012-12-25 2017-04-19 Makita Corporation Impact tool
LU92280B1 (en) * 2013-09-17 2015-03-18 Proxxon Sa Drill grinder with maintenance-friendly storage
US10875168B2 (en) 2016-10-07 2020-12-29 Makita Corporation Power tool
JP6863704B2 (en) 2016-10-07 2021-04-21 株式会社マキタ Strike tool
JP7246202B2 (en) 2019-02-19 2023-03-27 株式会社マキタ Power tool with vibration mechanism
JP7229807B2 (en) 2019-02-21 2023-02-28 株式会社マキタ Electric tool
DE102019207973A1 (en) * 2019-05-29 2020-12-03 Robert Bosch Gmbh Hand machine tool
CN113858136A (en) * 2020-05-12 2021-12-31 浙江动一新能源动力科技股份有限公司 Electric tool
US11691261B2 (en) * 2020-06-02 2023-07-04 Snap-On Incorporated Housing clamp for a power tool
JP2022096443A (en) * 2020-12-17 2022-06-29 株式会社マキタ Electric rotary tool

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3405922A1 (en) 1984-02-18 1985-08-22 Robert Bosch Gmbh, 7000 Stuttgart HAND MACHINE, ESPECIALLY DRILLING HAMMER
US6672402B2 (en) * 2001-12-27 2004-01-06 Black & Decker Inc. Combined fastenerless motor end cap and output device mounting
DE10261025A1 (en) * 2002-12-24 2004-07-08 Robert Bosch Gmbh Power tool with several functional assemblies housed in separate housings
US20050236170A1 (en) * 2004-04-23 2005-10-27 Lee Wen S Power tool having noise reducing structure
JP4515181B2 (en) 2004-07-20 2010-07-28 株式会社マキタ Electric hammer drill
DE102004036585A1 (en) * 2004-07-28 2006-03-23 Robert Bosch Gmbh Intermediate flange for a machine tool
DE202005021085U1 (en) * 2004-08-27 2007-01-25 Makita Corp., Anjo Working tool e.g. hammer, has dynamic damper arranged in inner space formed by housing and hand grip, to reduce vibration applied to tool bit
JP4647957B2 (en) * 2004-08-27 2011-03-09 株式会社マキタ Work tools
DE102004055758B4 (en) 2004-11-18 2018-05-09 Andreas Stihl Ag & Co. Kg Anti-vibration element of a hand-held implement
EP1674215B1 (en) * 2004-12-23 2016-09-28 Black & Decker Inc. Hammer drill
US7469752B2 (en) * 2005-12-02 2008-12-30 Makita Corporation Power tool
DE102006044433A1 (en) 2006-09-21 2008-04-03 Robert Bosch Gmbh Electric machine tool with vibration-decoupled grip element
EP2127820A1 (en) * 2008-05-26 2009-12-02 Max Co., Ltd. Driving tool
US20090321101A1 (en) * 2008-06-26 2009-12-31 Makita Corporation Power tool

Also Published As

Publication number Publication date
EP2512752A1 (en) 2012-10-24
DE102009054640A1 (en) 2011-06-16
US9527201B2 (en) 2016-12-27
RU2012129661A (en) 2014-01-27
CN102655991A (en) 2012-09-05
WO2011072907A1 (en) 2011-06-23
CN102655991B (en) 2015-07-01
US20130168121A1 (en) 2013-07-04

Similar Documents

Publication Publication Date Title
EP2512752B1 (en) Hand-power tool
DE102005000199A1 (en) Hand tool with ratchet impact mechanism
EP1965951B1 (en) Hand power tool, in particular drill hammer and/or chipping hammer
EP1228561B1 (en) Manually-operated machine tool
EP2040884A1 (en) Hand-held machine tool
EP1320447B1 (en) Machine tool with a chamber for lubricating agent and a pressure equalisation device for said chamber
DE102006033344A1 (en) Hand-held implement
EP1787761B1 (en) Motor-driven hammer drill
EP2142344B1 (en) Hand machine tool
EP2191939B1 (en) Device for hand machine tool
WO2012025329A1 (en) Hand-held machine tool
DE102012222639A1 (en) Percussion device for use in e.g. drilling and/or chipping hammer, has fixing element which extends along circumferential direction around guiding element and tool receiving element, for force-locking connection
EP2451615B1 (en) Drill- and/or percussion apparatus
EP1959543A2 (en) Electrical motor with commutator-side rotor bearing
EP1550532B1 (en) Hand tool with vibration damping
EP2822734B1 (en) Hand-machine tool device
EP2239100A2 (en) Impact control device
DE102014205563A1 (en) Hand-operated machine tool
EP2283978A2 (en) Hand tool machine apparatus
EP2822735B1 (en) Hand power tool device
DE102012218882A1 (en) Hand-held power tool device e.g. demolition hammer has stroke unit that transmits drive motion of drive unit to tool holder in driving direction, and locking element that provides positive coupling of tool holder in operating state
EP2033743B1 (en) Transmission system for a power tool, in particular an electric hand tool
DE102017211773A1 (en) Hand machine tool device
DE102017211778A1 (en) Hand machine tool device
DE102019205827A1 (en) Hand machine tool with a securing element for a shaft

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20120716

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20130605

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 630222

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502010004642

Country of ref document: DE

Effective date: 20131031

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130918

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131204

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130904

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

BERE Be: lapsed

Owner name: ROBERT BOSCH G.M.B.H.

Effective date: 20131031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140104

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010004642

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140106

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140630

26N No opposition filed

Effective date: 20140605

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131104

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010004642

Country of ref document: DE

Effective date: 20140605

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131031

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20141015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131204

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20101015

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141031

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131015

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141031

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 630222

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502010004642

Country of ref document: DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231218

Year of fee payment: 14