EP0791435B1 - Motor-driven handtool - Google Patents
Motor-driven handtool Download PDFInfo
- Publication number
- EP0791435B1 EP0791435B1 EP96119429A EP96119429A EP0791435B1 EP 0791435 B1 EP0791435 B1 EP 0791435B1 EP 96119429 A EP96119429 A EP 96119429A EP 96119429 A EP96119429 A EP 96119429A EP 0791435 B1 EP0791435 B1 EP 0791435B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- handle
- hand tool
- tool according
- fastening element
- hand
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
- B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
- B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/005—Auxiliary devices used in connection with portable grinding machines, e.g. holders
Definitions
- the invention relates to a motor-operated hand tool, such as. an eccentric, angle or orbital sander or Sander, with a removable handle, the handle being a arranged in the handling area of the handle and for manual assembly or removal of the handle relative to this Movable, in particular rotatable fastener.
- a motor-operated hand tool such as. an eccentric, angle or orbital sander or Sander
- Known Hand tools are often two-handed equipped, one often as a removable additional handle is trained.
- the handle must be turned several times be rotated itself, which is a multiple change of grip required and cumbersome.
- Another known one Drilling machine according to DE-A-41 32 058 is also transverse to Drilling spindle running handle on a clamp-like Fastening over the drill chuck area of the drill is turned, mounted on the tool housing, one Clamping screw is tightened or loosened manually.
- the Clamping screw is not in the handling area of the Handle.
- a similar device is shown in EP-A-0 249 037.
- the assembly or disassembly of this handle is extremely expensive because the Drill either between the upper arm and body or between the legs is held while a hand grips the handle brings the desired position relative to the machine housing and the other hand to tighten the mentioned clamping screw is needed.
- DE-U-93 04 887.4 shows a drill with one opposite Movable handle of the machine housing. In the respective The handle is moved by means of an im Handling area of the handle provided screw fixable. The handle should not be released from the machine housing.
- the removable additional handle in the circumferential direction with respect to Tool drive axis is movable on the outside of the machine housing.
- the handle consists essentially of a spherical one Knob with an internal thread that with a threaded bolt can be screwed, which is movable in the circumferential direction spherical arched protrusion. To screw on the Knob must be turned several times, and a complex Reaching is required.
- An ergonomic shape of the Handle is not possible, but its rotationally symmetrical Rather, the design is predetermined.
- a generic hand tool is from US-A-5,074,081 known.
- An additional hand knob is over a longitudinal guide can be pushed onto a machine housing. It snaps into place Fastening element in a locking position.
- the Fastener can be manually from the hand knob comprehensive hand of the user in the unlocked position can be deflected to remove the hand knob.
- the invention is therefore based on the object of a hand tool of the generic type to improve in that the Handle is easier to assemble or remove and an ergonomic one that is favorable for the working device in question Allows shaping.
- the hand tool and the handle should be easy to handle his; multiple repositioning should not be necessary, and there must also be no problems holding or supporting the Hand tool occur.
- This task is done with a motorized hand tool solved according to the invention in that the handle one in the Grip surface has a recess in which the Fastener is manually operable.
- the fastener in the gripping surface opening recess in the handling area of the handle is provided and opposite to this for mounting or releasing is movable, in particular rotatable, is a multiple gripping, as it was initially described as disadvantageous, dispensable; the handle is held or positioned with one hand and it becomes the fastener for fastening with the same hand actuated or loosening the handle, especially with the fingers rotated while the handle continues with the cupped hand is held or remains in the cupped hand while doing so is supported.
- the fastener is one in the handle positionally secured screw with a manually graspable and actuatable head.
- the screw head is preferred for this gripped with the thumb and index finger or middle finger and turned.
- fasteners such as e.g. in the form of a bayonet lock, conceivable. Even if it was is a rotatable fastener, this must not necessarily be formed by a screw, but it could also be a connectable to an actuating head Act threaded part with one of the tool housing projecting threaded bolt is screwed.
- one Screw could also be a pin with limited movement in the Tool body lockable ring grooves or an insertable and secured by rotation, engaging behind a stop or lockable pin can be used.
- the fastener is pending the recess over the gripping surface and is therefore tangible, in particular rotatable.
- the recess need not be dimensioned so large that a user of the handheld device with his fingers in the recess can get into the fastener, but the Recess can essentially the shape of the fastener be adapted and surround it quite closely. This will also optically a compact appealing Appearance of the handle achieved.
- the handle can e.g. have the shape of an ergonomically shaped knob, and the Recess can be used as an opening from one side of the handle surface the knob extends to the other side.
- the Fastener is then preferably on the two opposite sides of the handle over the grip surface in front.
- the position of the handle on the tool body is preferred given. It proves to be advantageous if the Handle unintentionally towards the tool body is rotatable or pivotable; this can preferably be done by a complementary shape of tool body and handle can be achieved by, for example, the radius of curvature of the Tool body attachable side of the handle accordingly the curvature of the tool body is formed.
- Ribs, webs, pins and appropriately trained Recesses can be provided in the other part.
- the handle advantageously comprises two Half-shell parts, which are simple in the Injection molding process made of plastic and can preferably be locked together.
- the half-shell parts advantageously limit one Through opening for the fastener, which before the closing of the half-shell parts in one Opening half inserted and by connecting the Half-shell parts are secured in position within the opening.
- the manually operable fastener additionally a tool attachment point, e.g. for one Screwdriver, an Allen key or the like.
- a tool attachment point e.g. for one Screwdriver, an Allen key or the like.
- FIG. 1 shows an overall reference number 2 designated hand-held random orbit sander with a first housing-fixed handle 4, the one Passage opening 6 limited. In this passage opening 6 extends from the handle 4 from an actuation button 8.
- the handle 4 is on a motor housing 10 molded in which ventilation slots 12 are formed are, but also in the upper area to handle and guiding the orbital sander gripped by hand can be.
- the Handle 14 has an ergonomically curved knob shape 16 and is T-shaped in plan view ( Figure 3), but without corners or have edges.
- the handle 14 comprises two Half-shell parts 18, 20 made of a plastic material, the can be locked together.
- the handle 14 is by means of one rotatable relative to the half-shell parts 18, 20 Fastening element 22 in the form of a screw 24 on Tool body attachable.
- Both half-shell parts 18, 20 have in their gripping surface 26, 28 an opening 30, 32 or a through opening , whereby a recess 34 inside the handle 14 limited for receiving and securing the screw 24 or released.
- the half-shell parts 18, 20 also limit a through opening 36 for the Screw shaft of the screw 24.
- the screw 24 is in one of the half-shell parts inserted and by connecting or latching of the two half-shell parts secured in place, the head 38 of the screw 24 in the recess 34 is arranged. How particularly good from Figure 1 can be seen, the screw head 38 protrudes on both sides of the Handle 14 over the grip surface 26, 28 and can be thus comfortable with the thumb and index finger or Twist middle finger, with handle 14 using the same Can be held by hand without being complex Reaching is required.
- the screw head 38 has one on its end face Tool attachment point 40 for an Allen key, which by a channel-shaped, indicated by the broken line 42 Access opening 44 can be reached through.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
Die Erfindung betrifft ein motorbetriebenes Handwerkzeug, wie z.B. einen Exzenter-, Winkel- oder Schwingschleifer oder Sander, mit einem abnehmbaren Handgriff, wobei der Handgriff ein im Handhabungsbereich des Handgriffs angeordnetes und zum manuellen Montieren bzw. Abnehmen des Handgriffs gegenüber diesem bewegbares, insbesondere drehbares Befestigungselement aufweist.The invention relates to a motor-operated hand tool, such as. an eccentric, angle or orbital sander or Sander, with a removable handle, the handle being a arranged in the handling area of the handle and for manual assembly or removal of the handle relative to this Movable, in particular rotatable fastener.
Es kann sich hierbei um Elektrohandwerkzeuge oder aber um kompressorbetriebene Handwerkzeuge handeln. Bekannte Handwerkzeuge sind häufig mit zwei Handgriffen ausgestattet, wobei einer oftmals als abnehmbarer Zusatzhandgriff ausgebildet ist. So sind nicht gattungsgemäße Handbohrmaschinen bekannt, bei denen ein länglicher, gerader Handgriff mit einem vorstehenden Gewindeabschnitt quer zur Richtung der Bohrspindel in eine Öffnung des Maschinengehäuses einschraubbar ist. Hierbei muß der Handgriff mehrmals um sich selbst gedreht werden, was ein mehrfaches Umgreifen erfordert und umständlich ist. Bei einer anderen bekannten Bohrmaschine nach DE-A-41 32 058 wird der ebenfalls quer zur Bohrspindel verlaufende Handgriff über eine schellenartige Befestigung, die über den Bohrfutterbereich der Bohrmaschine gestülpt wird, am Werkzeuggehäuse montiert, wobei eine Spannschraube manuell gespannt bzw. gelöst wird. Die Spannschraube befindet sich nicht im Handhabungsbereich des Griffs. Ein ähnliches Gerät zeigt EP-A-0 249 037. Die Montage bzw. Demontage dieses Handgriffs ist extrem aufwendig, da die Bohrmaschine entweder zwischen Oberarm und Körper oder zwischen den Beinen gehalten wird, während eine Hand den Handgriff in die erwünschte Position relativ zum Maschinengehäuse bringt und die andere Hand zum Spannen der erwähnten Spannschraube benötigt wird.These can be electrical hand tools or act on compressor-operated hand tools. Known Hand tools are often two-handed equipped, one often as a removable additional handle is trained. So are not generic hand drills known in which an elongated, straight handle with a protruding thread section transverse to the direction of Drilling spindle in an opening in the machine housing can be screwed in. Here, the handle must be turned several times be rotated itself, which is a multiple change of grip required and cumbersome. Another known one Drilling machine according to DE-A-41 32 058 is also transverse to Drilling spindle running handle on a clamp-like Fastening over the drill chuck area of the drill is turned, mounted on the tool housing, one Clamping screw is tightened or loosened manually. The Clamping screw is not in the handling area of the Handle. A similar device is shown in EP-A-0 249 037. The assembly or disassembly of this handle is extremely expensive because the Drill either between the upper arm and body or between the legs is held while a hand grips the handle brings the desired position relative to the machine housing and the other hand to tighten the mentioned clamping screw is needed.
DE-U-93 04 887.4 zeigt eine Bohrmaschine mit einem gegenüber dem Maschinengehäuse verschieblichen Handgriff. In der jeweiligen Verschiebeposition ist der Handgriff mittels einer im Handhabungsbereich des Handgriffs vorgesehen Schraube fixierbar. Der Handgriff soll nicht vom Maschinengehäuse gelöst werden.DE-U-93 04 887.4 shows a drill with one opposite Movable handle of the machine housing. In the respective The handle is moved by means of an im Handling area of the handle provided screw fixable. The handle should not be released from the machine housing.
Aus der DE-C-42 03 171 ist ein Schleifgerät bekannt, dessen abnehmbarer Zusatzhandgriff in Umfangsrichtung bzgl. der Werkzeugantriebsachse außen am Maschinengehäuse verfahrbar ist. Der Handgriff besteht im wesentlichen aus einem kugelförmigen Knopf mit einem Innengewinde, das mit einem Gewindebolzen verschraubbar ist, der aus einer in Umfangsrichtung verfahrbaren sphärisch gewölbten Aufnahme herausragt. Zum Aufschrauben des Knopfs muß dieser mehrfach gedreht werden, und ein aufwendiges Umgreifen ist erforderlich. Eine ergonomische Formgebung des Handgriffs ist nicht möglich, sondern seine rotationssymmetrische Ausgestaltung ist vielmehr vorgegeben.From DE-C-42 03 171 a grinding device is known, the removable additional handle in the circumferential direction with respect to Tool drive axis is movable on the outside of the machine housing. The handle consists essentially of a spherical one Knob with an internal thread that with a threaded bolt can be screwed, which is movable in the circumferential direction spherical arched protrusion. To screw on the Knob must be turned several times, and a complex Reaching is required. An ergonomic shape of the Handle is not possible, but its rotationally symmetrical Rather, the design is predetermined.
Ein gattungsgemäßes Handwerkzeug ist aus der US-A-5,074,081 bekannt. Ein zusätzlicher Handknauf ist über eine Längsführung auf ein Maschinengehäuse aufschiebbar. Dabei rastet ein Befestigungselement in eine Verriegelungsstellung. Das Befestigungselement kann manuell von der den Handknauf umfassenden Hand des Benutzers in Entriegelungsstellung ausgelenkt werden, um den Handknauf entfernen zu können.A generic hand tool is from US-A-5,074,081 known. An additional hand knob is over a longitudinal guide can be pushed onto a machine housing. It snaps into place Fastening element in a locking position. The Fastener can be manually from the hand knob comprehensive hand of the user in the unlocked position can be deflected to remove the hand knob.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Handwerkzeug der gattungsgemäßen Art dahingehend zu verbessern, daß der Handgriff auf einfachere Art montierbar bzw. abnehmbar ist und dabei eine für das betreffende Arbeitsgerät günstige ergonomische Formgebung zuläßt. Beim Montieren bzw. Abnehmen des Handgriffs soll das Handwerkzeug sowie der Handgriff einfach handhabbar sein; ein mehrfaches Umgreifen soll nicht erforderlich sein, und es dürfen auch keine Probleme beim Halten oder Abstützen des Handwerkzeugs auftreten.The invention is therefore based on the object of a hand tool of the generic type to improve in that the Handle is easier to assemble or remove and an ergonomic one that is favorable for the working device in question Allows shaping. When mounting or removing the handle the hand tool and the handle should be easy to handle his; multiple repositioning should not be necessary, and there must also be no problems holding or supporting the Hand tool occur.
Diese Aufgabe wird bei einem motorbetriebenen Handwerkzeug erfindungsgemäß dadurch gelöst, daß der Handgriff eine in der Grifffläche mündende Ausnehmung aufweist, in der das Befestigungselement manuell betätigbar vorgesehen ist.This task is done with a motorized hand tool solved according to the invention in that the handle one in the Grip surface has a recess in which the Fastener is manually operable.
Dadurch, daß das Befestigungselement in der in der Grifffläche mündenden Ausnehmung im Handhabungsbereich des Handgriffs vorgesehen ist und gegenüber diesem zum Montieren bzw. Lösen bewegbar, insbesondere drehbar ist, ist ein mehrfaches Umgreifen, wie es eingangs als nachteilig geschildert wurde, entbehrlich; der Handgriff wird mit einer Hand gehalten bzw. positioniert und es wird mit derselben Hand das Befestigungselement zum Befestigen bzw. Lösen des Handgriffs betätigt, insbesondere mit den Fingern gedreht, während der Handgriff mit der hohlen Hand weiter gehalten wird bzw. in der hohlen Hand verbleibt und dabei gestützt wird.The fact that the fastener in the gripping surface opening recess in the handling area of the handle is provided and opposite to this for mounting or releasing is movable, in particular rotatable, is a multiple gripping, as it was initially described as disadvantageous, dispensable; the handle is held or positioned with one hand and it becomes the fastener for fastening with the same hand actuated or loosening the handle, especially with the fingers rotated while the handle continues with the cupped hand is held or remains in the cupped hand while doing so is supported.
Bei einer vorteilhaften Ausführungsform der Erfindung handelt es sich bei dem Befestigungselement um eine im Handgriff lagegesicherte Schraube mit einem manuell greifbaren und betätigbaren Kopf. Der Schraubenkopf wird hierfür vorzugsweise mit dem Daumen und Zeigefinger oder Mittelfinger gegriffen und gedreht. Es sind jedoch auch andere Befestigungselemente, wie z.B. in Form eines Bajonettverschlußes, denkbar. Selbst wenn es sich um ein drehbares Befestigungselement handelt, muß dieses nicht notwendigerweise von einer Schraube gebildet sein, sondern es könnte sich auch um ein mit einem Betätigungskopf verbindbares Gewindeteil handeln, das mit einem von dem Werkzeuggehäuse vorstehenden Gewindebolzen verschraubbar ist. Anstelle einer Schraube könnte auch ein begrenzt verschieblicher Stift mit im Werkzeugkörper verrastbaren Ringnuten oder ein einsteckbarer und durch Drehung sicherbarer, einen Anschlag hintergreifender oder verrastbarer Stift verwendet werden.It is an advantageous embodiment of the invention the fastener is one in the handle positionally secured screw with a manually graspable and actuatable head. The screw head is preferred for this gripped with the thumb and index finger or middle finger and turned. However, there are other fasteners, such as e.g. in the form of a bayonet lock, conceivable. Even if it was is a rotatable fastener, this must not necessarily be formed by a screw, but it could also be a connectable to an actuating head Act threaded part with one of the tool housing projecting threaded bolt is screwed. Instead of one Screw could also be a pin with limited movement in the Tool body lockable ring grooves or an insertable and secured by rotation, engaging behind a stop or lockable pin can be used.
In Weiterbildung der Erfindung steht das Befestigungselement aus der Ausnehmung über die Grifffläche vor und ist damit greifbar, insbesondere drehbar. Bei dieser bevorzugten Ausführungsform braucht die Ausnehmung nicht derart groß bemessen zu werden, daß ein Benutzer des Handgeräts mit den Fingern in die Ausnehmung hinein zu dem Befestigungselement gelangen kann, sondern die Ausnehmung kann im wesentlichen der Form des Befestigungselements angepaßt sein und dieses recht eng umgeben. Hierdurch wird auch in optischer Hinsicht ein kompaktes ansprechendes Erscheinungsbild des Handgriffs erreicht. Der Handgriff kann bsp. die Form eines ergonomisch geformten Knaufs aufweisen, und die Ausnehmung kann als Durchbruch von einer Seite der Grifffläche des Knaufs zur anderen Seite erstreckt sein. Das Befestigungselement steht dann vorzugsweise auf den zwei gegenüberliegenden Seiten des Handgriffs über die Grifffläche vor.In a development of the invention, the fastener is pending the recess over the gripping surface and is therefore tangible, in particular rotatable. In this preferred embodiment the recess need not be dimensioned so large that a user of the handheld device with his fingers in the recess can get into the fastener, but the Recess can essentially the shape of the fastener be adapted and surround it quite closely. This will also optically a compact appealing Appearance of the handle achieved. The handle can e.g. have the shape of an ergonomically shaped knob, and the Recess can be used as an opening from one side of the handle surface the knob extends to the other side. The Fastener is then preferably on the two opposite sides of the handle over the grip surface in front.
Die Position des Handgriffs am Werkzeugkörper ist vorzugsweise vorgegeben. Dabei erweist es sich als vorteilhaft, wenn der Handgriff gegenüber dem Werkzeugkörper nicht unbeabsichtigt verdrehbar oder verschwenkbar ist; dies kann vorzugsweise durch eine komplementäre Formgebung von Werkzeugkörper und Handgriff erreicht werden, indem bspw. der Krümmungsradius der an den Werkzeugkörper anlegbaren Seite des Handgriffs entsprechend der Krümmung des Werkzeugkörpers ausgebildet ist. Zusätzlich können zwischen Handgriff und Werkzeugkörper Rippen, Stege, Stifte und entsprechend ausgebildete Ausnehmungen in dem anderen Teil vorgesehen sein.The position of the handle on the tool body is preferred given. It proves to be advantageous if the Handle unintentionally towards the tool body is rotatable or pivotable; this can preferably be done by a complementary shape of tool body and handle can be achieved by, for example, the radius of curvature of the Tool body attachable side of the handle accordingly the curvature of the tool body is formed. In addition, between the handle and tool body Ribs, webs, pins and appropriately trained Recesses can be provided in the other part.
Der Handgriff umfaßt vorteilhafterweise zwei Halbschalenteile, die auf einfache Art und Weise bspw. im Spritzgußverfahren aus Kunststoff herstellbar und vorzugsweise miteinander verrastbar sind. The handle advantageously comprises two Half-shell parts, which are simple in the Injection molding process made of plastic and can preferably be locked together.
Die Halbschalenteile begrenzen vorteilhafterweise eine Durchgangsöffnung für das Befestigungselement, welches vor dem Schließen der Halbschalenteile in die eine Öffnungshälfte eingesetzt und durch Verbindung der Halbschalenteile innerhalb der Öffnung lagegesichert wird.The half-shell parts advantageously limit one Through opening for the fastener, which before the closing of the half-shell parts in one Opening half inserted and by connecting the Half-shell parts are secured in position within the opening.
Bei einer bevorzugten Ausführungsform der Erfindung weist das an sich manuell betätigbare Befestigungselement zusätzlich eine Werkzeugansetzstelle, z.B. für einen Schraubenzieher, einen Inbus oder dgl., auf. Dies kann sich dann als vorteilhaft erweisen, wenn eine dauerhafte Montage des Handgriffs an dem Werkzeugkörper erwünscht und daher eine manuell unlösbare Montage vorteilhaft wäre. Aber auch für den Fall, daß der Handgriff abgenommen werden soll und der Benutzer das Befestigungselement nicht manuell zu lösen vermag, erweist sich diese Ausführungsform als zweckmäßig und vorteilhaft. Wenn das Befestigungselement in einer Ausnehmung im Handgriff untergebracht ist, kann dieser eine in der Ausnehmung mündende Zugangsöffnung zu der Werkzeugansetzstelle des Befestigungselements aufweisen.In a preferred embodiment of the invention the manually operable fastener additionally a tool attachment point, e.g. for one Screwdriver, an Allen key or the like. This can be then prove to be advantageous if permanent assembly of the handle on the tool body is desirable and therefore a manually unsolvable assembly would be advantageous. But also in the event that the handle is to be removed and the user does not manually loosen the fastener capable, this embodiment proves to be expedient and beneficial. If the fastener is in a Recess is housed in the handle, this one Access opening to the opening in the recess Have tool attachment point of the fastener.
Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus den beigefügten Patentansprüchen und der zeichnerischen Darstellung sowie der nachfolgenden Beschreibung einer vorteilhaften Ausführungsform der Erfindung. In der Zeichnung zeigt:
- Figur 1
- eine Seitenansicht eines erfindungsgemäß ausgebildeten Handwerkzeugs;
- Figur 2
- einen Schnitt durch einen abnehmbaren Handgriff des Handwerkzeugs nach Figur 1 und
- Figur 3
- eine Draufsicht auf den Handgriff nach Figur 2.
- Figure 1
- a side view of a hand tool designed according to the invention;
- Figure 2
- a section through a removable handle of the hand tool according to Figure 1 and
- Figure 3
- a plan view of the handle of Figure 2.
Figur 1 zeigt einen insgesamt mit dem Bezugszeichen 2
bezeichneten handgeführten Exzenterschleifer mit einem
ersten gehäusefesten Handgriff 4, der eine
Durchgriffsöffnung 6 begrenzt. In diese Durchgriffsöffnung
6 erstreckt sich vom Handgriff 4 aus eine Betätigungstaste
8. Der Handgriff 4 ist an einem Motorengehäuse 10
angeformt, in welchem Entlüftungsschlitze 12 ausgebildet
sind, das aber in seinem oberen Bereich auch zum Handhaben
und Führen des Exzenterschleifers mit der Hand gegriffen
werden kann. Um den Exzenterschleifer 2 noch besser führen
zu können, ist ein zusätzlicher abnehmbarer Handgriff 14 in
der Nähe des exzentrisch angetriebenen Schleifkopfs im
unteren Bereich des Werkzeugkörpers vorgesehen. Der
Handgriff 14 hat eine ergonomisch gewölbte Knaufform 16 und
ist in der Draufsicht (Figur 3) T-förmig, ohne jedoch Ecken
oder Kanten aufzuweisen. Der Handgriff 14 umfaßt zwei
Halbschalenteile 18, 20 aus einem Kunststoffmaterial, die
miteinander verrastbar sind. Der Handgriff 14 ist mittels
eines gegenüber den Halbschalenteilen 18, 20 drehbaren
Befestigungselements 22 in Form einer Schraube 24 am
Werkzeugkörper befestigbar.FIG. 1 shows an overall reference number 2
designated hand-held random orbit sander with a
first housing-fixed handle 4, the one
Passage opening 6 limited. In this
Beide Halbschalenteile 18, 20 weisen in ihrer Grifffläche
26, 28 einen Durchbruch 30, 32 bzw. eine Durchgangsöffnung
auf, wodurch innerhalb des Handgriffs 14 eine Ausnehmung 34
für die Aufnahme und Lagesicherung der Schraube 24 begrenzt
bzw. freigegeben wird. Die Halbschalenteile 18, 20
begrenzen außerdem eine Durchgangsöffnung 36 für den
Schraubenschaft der Schraube 24. Die Schraube 24 wird in
eines der Halbschalenteile eingelegt und durch Verbinden
bzw. Verrasten der beiden Halbschalenteile lagegesichert,
wobei der Kopf 38 der Schraube 24 in der Ausnehmung 34
angeordnet ist. Wie besonders gut aus der Figur 1
ersichtlich ist, ragt der Schraubenkopf 38 beidseits des
Handgriffs 14 über die Grifffläche 26, 28 vor und läßt sich
somit bequem mit dem Daumen und Zeigefinger oder
Mittelfinger drehen, wobei der Handgriff 14 mit derselben
Hand gehalten werden kann, ohne daß ein aufwendiges
Umgreifen erforderlich ist.Both half-
Der Schraubenkopf 38 weist an seiner Stirnseite eine
Werkzeugansetzstelle 40 für einen Inbus auf, die durch eine
kanalförmige, mit der unterbrochenen Linie 42 angedeutete
Zugangsöffnung 44 hindurch erreicht werden kann.The
Claims (14)
- Motor-driven hand tool (2), such as, for example, an eccentric grinder, angle grinder, or sander, having a removable handle (14), the handle (14) having a fastening element (22) arranged in the handling region of the handle and movable, in particular rotatable, with respect to the handle for the manual mounting or detachment thereof, characterized in that the handle (14) has a cutout (34) which opens out in the gripping surface (26, 28) thereof and in which the fastening element (22) is provided in such a way that it can be manually actuated.
- Hand tool according to Claim 1, characterized in that the fastening element (22) is a screw (24) which is secured in position in the handle (14) and has a manually grippable and actuable head (38).
- Hand tool according to Claim 1 or 2, characterized in that the fastening element (22) protrudes from the cutout (34) beyond the gripping surface (26, 28) and is thus grippable.
- Hand tool according to Claim 1, 2 or 3, characterized in that the handle (14) is an ergonomically shaped knob and the cutout (34) is in the form of a perforation (30, 32) from one side of the gripping surface (26, 28) to [lacuna] other.
- Hand tool according to Claim 4, characterized in that the fastening element (22) protrudes beyond the gripping surface (26, 28) on two opposite sides.
- Hand tool according to one or more of the preceding claims, characterized in that the mounting position of the handle (14) on the tool body is preset.
- Hand tool according to Claim 6, characterized in that the side of the handle (14) which can be placed against the tool body is designed to be complementary to the shape thereof.
- Hand tool according to Claim 6 or 7, characterized by ribs which bring about centring between handle (14) and tool body.
- Hand tool according to one or more of the preceding claims, characterized in that the handle (14) comprises two half-shell parts (18, 20).
- Hand tool according to Claim 9, characterized in that the half-shell parts (18, 20) can be locked to one another.
- Hand tool according to Claim 9 or 10, characterized in that the half-shell parts (18, 20) bound a through-opening (36) for the fastening element (22), which is inserted before the half-shell parts are closed and is secured in position by their connection.
- Hand tool according to one or more of the preceding claims, characterized in that the fastening element (22), which is manually actuable per se, additionally has a tool application point (40), e.g. for a screwdriver.
- Hand tool according to Claim 12, characterized in that the handle (14) has an access opening for a tool for tightening or loosening the fastening element.
- Hand tool according to Claim 13, characterized in that the access opening (44) is a channel running transversely to the perforation (30, 32).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19606535 | 1996-02-22 | ||
| DE19606535A DE19606535C2 (en) | 1996-02-22 | 1996-02-22 | Motor-operated hand tool with removable handle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0791435A1 EP0791435A1 (en) | 1997-08-27 |
| EP0791435B1 true EP0791435B1 (en) | 2000-06-07 |
Family
ID=7786064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96119429A Expired - Lifetime EP0791435B1 (en) | 1996-02-22 | 1996-12-04 | Motor-driven handtool |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6148931A (en) |
| EP (1) | EP0791435B1 (en) |
| DE (2) | DE19606535C2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3490914B2 (en) * | 1997-12-04 | 2004-01-26 | 株式会社シマノ | Fishing reel handle handle and handle assembly |
| DE29802027U1 (en) * | 1998-02-06 | 1998-03-26 | J. Wagner GmbH, 88677 Markdorf | Motorized hand tool |
| ATE287319T1 (en) * | 1998-12-31 | 2005-02-15 | Fein C & E Gmbh | POWER TOOLS, ESPECIALLY ANGLE GRINDERS |
| US6260591B1 (en) | 1999-08-11 | 2001-07-17 | Black & Decker Inc. | Biscuit joiner |
| DE29922108U1 (en) * | 1999-12-16 | 2000-02-17 | Hilti Ag | Handheld grinder |
| US6669543B2 (en) | 2001-10-31 | 2003-12-30 | Ingersoll-Rand Company | Interchangeable handle grip assembly, conversion kit, and tools incorporating same |
| DE102004016088B4 (en) | 2004-04-01 | 2012-07-19 | Hilti Aktiengesellschaft | Additional handle assembly |
| US20050221738A1 (en) * | 2004-04-06 | 2005-10-06 | Cooper Vincent P | Orbital sander with vertical handle |
| US7222679B1 (en) * | 2006-03-17 | 2007-05-29 | Snap-On Incorporated | Random orbital sander |
| DE102006023039B3 (en) * | 2006-05-17 | 2008-01-31 | Metabowerke Gmbh | Electric hand-held tool device e.g. eccentric sander, has carbon brush of motor and/or electronics accessed during removal of cover unit, and bearing carrier integrated into unit for partially supporting bearing of drive shaft of motor |
| DE102010063912A1 (en) * | 2010-12-22 | 2012-06-28 | Hilti Aktiengesellschaft | Auxiliary handle, hand tool machine, system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0249037A2 (en) * | 1986-06-10 | 1987-12-16 | Scintilla Ag | Auxiliary handle for a hand drill |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1809060A (en) * | 1929-08-15 | 1931-06-09 | Columbian Enameling & Stamping | Handle attachment for cooking utensils |
| US2499962A (en) * | 1945-07-21 | 1950-03-07 | Blackhawk Mfg Co | Portable impact tool assemblage |
| US2639564A (en) * | 1950-09-09 | 1953-05-26 | Clarke Sanding Machine Company | Oscillating sander |
| US2831463A (en) * | 1955-07-07 | 1958-04-22 | Atlas Copco Ab | Cushioning device for hammer tools |
| US3849943A (en) * | 1973-02-26 | 1974-11-26 | Rockwell International Corp | Power operated sanding machine |
| JPS6044530B2 (en) * | 1980-03-13 | 1985-10-04 | 正治 窪川 | Anti-vibration buffer handle for vibration equipment |
| DE3829801C2 (en) * | 1988-09-02 | 1995-01-26 | Metabowerke Kg | Additional handle for motor-operated hand machine tools |
| DE3901728C2 (en) * | 1989-01-21 | 1994-10-13 | Atlas Copco Elektrowerkzeuge | Screw-free connection of the handle shells of a double-shell housing for a power tool |
| DE4102838A1 (en) * | 1991-01-31 | 1992-08-06 | Bosch Gmbh Robert | HAND MACHINE TOOL |
| US5049012A (en) * | 1991-03-11 | 1991-09-17 | Ryobi Motor Products Corp. | Auxiliary handle for hand-held drill |
| US5074081A (en) * | 1991-06-12 | 1991-12-24 | Ryobi Motor Products Corp. | Sander with removable auxiliary handle |
| DE4132058A1 (en) * | 1991-09-26 | 1993-04-01 | Hilti Ag | Handle for hand-held power tool - incorporates clamping mechanism which fits around tool housing. |
| DE4203171C1 (en) | 1992-02-05 | 1993-06-09 | Festo Kg, 7300 Esslingen, De | |
| WO1993021751A1 (en) * | 1992-04-24 | 1993-11-11 | Poetker Dynamics Inc. | Attachable handle |
| FR2695054B3 (en) * | 1992-08-25 | 1995-05-05 | Andre Dieu | Universal hand tool holder, handle type. |
| DE9304887U1 (en) * | 1993-03-31 | 1993-08-05 | Karmann, Ahmet, 73033 Göppingen | Hand drill and screw machine |
| JPH07276261A (en) * | 1994-04-08 | 1995-10-24 | Hitachi Koki Co Ltd | Inserting type assistant handle device |
| DE19544104A1 (en) * | 1995-11-27 | 1997-05-28 | Hilti Ag | Explosively driven fastener gun for inserting bolts and nails etc. into hard materials |
-
1996
- 1996-02-22 DE DE19606535A patent/DE19606535C2/en not_active Expired - Fee Related
- 1996-12-04 DE DE59605400T patent/DE59605400D1/en not_active Expired - Fee Related
- 1996-12-04 EP EP96119429A patent/EP0791435B1/en not_active Expired - Lifetime
-
1997
- 1997-02-07 US US08/797,603 patent/US6148931A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0249037A2 (en) * | 1986-06-10 | 1987-12-16 | Scintilla Ag | Auxiliary handle for a hand drill |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59605400D1 (en) | 2000-07-13 |
| DE19606535C2 (en) | 1999-01-07 |
| US6148931A (en) | 2000-11-21 |
| DE19606535A1 (en) | 1997-08-28 |
| EP0791435A1 (en) | 1997-08-27 |
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