WO1999015316A1 - Hand-held machine-tool having a front and a rear parts which are offset relative to the housing for two-hand use - Google Patents

Hand-held machine-tool having a front and a rear parts which are offset relative to the housing for two-hand use Download PDF

Info

Publication number
WO1999015316A1
WO1999015316A1 PCT/DE1998/001046 DE9801046W WO9915316A1 WO 1999015316 A1 WO1999015316 A1 WO 1999015316A1 DE 9801046 W DE9801046 W DE 9801046W WO 9915316 A1 WO9915316 A1 WO 9915316A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
tool
hand
hand tool
tool according
Prior art date
Application number
PCT/DE1998/001046
Other languages
German (de)
French (fr)
Inventor
Ernst Dreher
Christian Hermes
Juergen Stoeger
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
Priority to EP98931910A priority Critical patent/EP1017545B1/en
Priority to DE59813832T priority patent/DE59813832D1/en
Priority to JP2000512670A priority patent/JP2001517560A/en
Priority to BR9812670-9A priority patent/BR9812670A/en
Publication of WO1999015316A1 publication Critical patent/WO1999015316A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor

Definitions

  • the invention relates to a hand tool according to the preamble of claim 1.
  • Brushes designed as hand-held power tools with diverse, in particular rod-like, housing shapes are known which differ above all in terms of their drive and their working effect and in which handling was previously of secondary importance.
  • angle grinders with a rotating tool which is arranged approximately at right angles to the housing axis and which can also be a clampable brush tool.
  • Two-hand operation with high holding forces is required, such as when cleaning stubbornly soiled parts with an angle grinder or a hand drill with inserted brush tool.
  • the hand-held power tool according to the invention with the characterizing features of claim 1 is much easier to handle than known hand-held power tools, in particular when operating with two hands with high operating force with a brush tool inserted, because the double-kinked arrangement of the housing ends means that they can be securely clamped in the hands of the operator. that this ensures particularly effective guiding and working in a variety of holding positions.
  • the tool preferably at an angle of less than 90 °, in particular by 60 °
  • a small area of the housing receiving the tool being inclined parallel or in alignment with the tool or bent relative to the elongated area and that a small area of the rear end of the housing facing away from the tool is also angled or kinked, preferably by less than 90 °, in particular by 60 °, with respect to the elongated area, is particularly easy to handle with a particularly large number of different holding positions the operator's hands are secured with both one-hand and two-hand operation.
  • the bent, tool-receiving area of the housing has a waist at the kink. points, the fingers of the operating hands are given a particularly secure, defined hold.
  • the housing has an at least partially spherical area in the area of the kink, the operating hands have a comfortable, large-area grip.
  • a lateral indentation is arranged on the side of the spherical area, in particular on each housing shell, further improves the grip security on the housing, with the annular bead on the bent region of the housing receiving the tool near the tool holder, causing unwanted touching of the brush tool prevents the operator's hand and improves work safety.
  • the hand-held power tool has a snap-on clamping device for interchangeable brush tools of different sizes and shapes ensures universal use in the case of quick brush changes.
  • the clamping device can be released by means of a button, the tool change is possible quickly and easily.
  • the button is formed from an area of the ring bead, it is particularly easy to reach by the operator's hand.
  • the fact that the housing is made in shell construction, the bent housing at both ends is torsion and bending resistant and easier to assemble than in pot construction.
  • FIG. 1 shows a side view of an electric brush with a housing angled obliquely in the longitudinal direction
  • FIG. 2 shows a view from above of the electric brush according to FIG. 1
  • FIGS. 3, 4 show two further exemplary embodiments of an electric brush
  • FIGS. 5 to 9 show the exemplary embodiment of the electric brush according to FIG. 1 in different two-hand operating positions
  • Figure 10 this electric brush in one-hand operating position.
  • the handheld tool shown in longitudinal section in FIG. 1 is designed as an electric brush 10 and has a housing 12 which extends in the middle in an approximately cylindrical, elongated manner as the main housing part 12a and which is configured at both ends longitudinally at an angle of approximately 45 ° as a front and rear bend 28, 30 .
  • the main housing part (12a) contains an electric motor 14 which is rotatably connected to an output shaft 18 via a gear 16.
  • the output shaft 18 receives an interchangeably insertable brush tool 20 so that it can be rotatably clamped for rotational driving.
  • the brush tool 20 has a shank-like insertion end, which can be locked in a rotationally fixed manner in a tensioning device of the output shaft 18, which cannot be lost.
  • the transmission housing 12 In its straight middle region, the main housing part 12a, the transmission housing 12 carries on its upper side a switching slide 22 for actuating an electric switch for switching the electric motor 14 on and off.
  • An electric cable emerging from the rear end 30 serves to supply power to the electric motor 14
  • a setting wheel 25 of an electronic speed control is arranged at the end of the rear bend 30 of the housing 12.
  • the main housing part 12a merges into the front, downward bend 28, the upper side of the housing 12 being designed as a knee-like spherical region 26 in the region of the bend 28.
  • the front bend 28 merges at the bottom, at its free end close to the coupling area of the brush tool 20, into an annular bead 34.
  • the annular bead 34 serves to support the operator's guiding hand and is intended to prevent the hand from slipping towards the brush tool 20.
  • a segment area of the annular bead 34 is designed as a pushbutton 32 with which the clamping device (not described in more detail) can be released by pressing it down, so that the brush tool 20 can then be easily removed.
  • a waist 36 is formed between the ball region 26 and the front bend 2E, which gives the handheld power tool 10 a particularly good grip.
  • the housing 12 On the underside opposite the spherical region 26, the housing 12 has a concave-shaped indentation 38 which continues laterally in each of the housing shells 11 and 13 (FIG. 2) in waist-like indentations 38 ', 39.
  • FIG. 2 shows a top view of the exemplary embodiment according to FIG. 1, the switching slide 22 at the top of the main housing part 12a, the housing shells 11, 13 of the housing 12, the spherical region 26, the waist 36 and the waist-like indentations being particularly clear 38 ', 39, the front bend 28, the annular bead 34, the push button 32 and the rear bend 30 can be seen.
  • the exemplary embodiment shown in FIG. 4 differs from the previous exemplary embodiments by a slightly longer region of the front bend 108 without a waist-like indentation and by a rear bend 110 shaped like a pistol grip.
  • FIG. 5 shows the electric brush 10 according to FIGS. 1 and 2 in two-hand operation, the right control hand R encompassing the area of the rear bend 30 like a pistol grip and the left control hand L from above onto the ball area 26 of the front bend 28 engages, the fingers find particularly good hold in the feed 38.
  • FIG. 6 shows the same machine as FIG. 5, the left control hand L holding the area of the rear bend 30 spanned like a pistol grip and the right control hand R holding the housing 12 in the area of the front bend 28 from above or respectively overlaps laterally. In this position, a considerable working pressure can be exerted on the brush tool (not shown) in an ergonomically favorable manner with the right operating hand R.
  • FIG. 7 shows the electric brush 10 when working overhead, the right control hand R embracing the rear bend 30 like a pistol grip and the left control hand L embracing the front bend 28 laterally from below.
  • the left operating hand L can apply high operating forces to the brush tool (not shown) without fatigue.
  • FIG. 8 shows the hand-held power tool in principle as handled in FIG. 7, but the thumb of the left operating hand L does not reach under the housing 12 in the area of the feeder 38, but is supported laterally on the housing shell 11 and thereby has a high lateral Can apply working pressure on the housing 12 and thus on the brush tool, not shown.
  • FIG 9 shows the handling of the hand tool 10, the left control hand L engages under the housing 12 at the front bend 28 in the area of the feed 38 and the right control hand R overlaps the rear bend 30 from above, so that the Hand machine tool 10 can be securely clamped and guided between the left and right operating hand L, R.
  • FIG. 10 shows handheld power tool 10 held in one-hand operation only in the right operating hand R, with the pointing finger and subsequent fingers engages under housing 12 in the area of indentation 38 at front bend 28 and the thumb engages over housing 12 at the top.
  • the machine 10 can also be held securely with a single hand and is suitable for compensating the corresponding reaction forces of the hand tool when working with the brush tool, not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)
  • Harvester Elements (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)

Abstract

The present invention relates to a hand-held machine-tool (10) comprising an oblong housing (12) and a rotating tool (20), such as a brush insert, which is arranged at a given angle relative to the main part (12a) of the housing. The machine-tool is particularly easy and safe to handle since the tool (20) is mounted on the housing (12) at an angle not exceeding 90°, and preferably not exceeding 60°, relative to the housing main part (12a). A region of the housing (12) for receiving the tool (20) is parallel to or in alignment with the tool (20) and inclined relative to the housing main part (12a) so as to define an offset front part (28). The ease of use and safety are also ensured by the fact that a rear end region of the housing (12) opposite from the tool (20) is equally bent downward at an angle not exceeding 90°, and preferably not exceeding 60°, relative to the housing main part (12a) so as to define an offset rear part (30).

Description

HANDWERKZEUGMASCHINE MIT EINER VORDEREN UND EINER HINTEREN ABKNICKUNG DES GEHÄUSES FÜR ZWEIHANDBEDIENUNGHAND MACHINE TOOL WITH A FRONT AND REAR BEND OF THE HOUSING FOR TWO-HANDED OPERATION
Stand der TechnikState of the art
Die Erfindung betrifft eine Handwerkzeugmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a hand tool according to the preamble of claim 1.
Es sind als Handwerkzeugmaschinen ausgestaltete Bürsten mit vielfältigen, insbesondere stabartigen Gehäuseformen bekannt, die sich vor allem hinsichtlich ihres Antriebs und ihrer Arbeitswirkung unterscheiden und bei denen die Handhabbarkeit bisher zweitrangig war.Brushes designed as hand-held power tools with diverse, in particular rod-like, housing shapes are known which differ above all in terms of their drive and their working effect and in which handling was previously of secondary importance.
Es sind auch Winkelschleifer mit etwa rechtwinklig zur Gehäuseachse abgewinkelt angeordnetem, rotierendem Werkzeug bekannt, das auch ein einspannbares Bürstenwerkzeug sein kann.There are also known angle grinders with a rotating tool which is arranged approximately at right angles to the housing axis and which can also be a clampable brush tool.
Bei Winkelschleifern und auch bei Handwerkzeugmaschinen mit pistolenförmigem Gehäuse zum Halten und Führen mit nur einer Hand läßt die Handlichkeit dann zu wünschen übrig, wennWith angle grinders and also with hand-held machine tools with a pistol-shaped housing for holding and guiding with only one hand, the handiness leaves much to be desired if
Zweihandbedienung mit hohen Haltekräften erforderlich ist, wie z.B. beim Reinigen hartnäckig verschmutzter Teile mit einem Winkelschleifer oder einer Handbohrmaschine mit eingesetztem Bürstenwerkzeug.Two-hand operation with high holding forces is required, such as when cleaning stubbornly soiled parts with an angle grinder or a hand drill with inserted brush tool.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Handwerkzeugmaschine mit den kennzeichnenden Merkmalen des Anspruchs 1 ist gegenüber bekannten Handwerkzeugmaschinen deutlich besser handhabbar, insbesondere beim beidhandigen Führen mit hoher Bedienkraft mit ein- gesetztem Bürstenwerkzeug, weil durch die doppelt abgeknickte Anordnung der Gehäuseenden diese derart sicher in den Händen des Bedienenden einspannbar sind, daß dies in vielfältigen Haltepositionen ein besonders effektives Führen und Arbeiten gewährleistet.The hand-held power tool according to the invention with the characterizing features of claim 1 is much easier to handle than known hand-held power tools, in particular when operating with two hands with high operating force with a brush tool inserted, because the double-kinked arrangement of the housing ends means that they can be securely clamped in the hands of the operator. that this ensures particularly effective guiding and working in a variety of holding positions.
Dadurch, daß das Werkzeug, vorzugsweise um weniger als 90°, insbesondere um 60°, gegenüber der Gehäuseachse abgewinkelt am Gehäuse befestigt ist, wobei ein kleiner Bereich des das Werkzeug aufnehmenden Gehäuses parallel bzw. fluchtend zum Werkzeug geneigt bzw. gegenüber dem länglichen Bereich abgeknickt ist und daß ein kleiner Bereich des dem Werkzeug abgewandten, hinteren Endes des Gehäuses ebenfalls, vorzugsweise um weniger als 90°, insbesondere um 60°, gegenüber dem länglichen Bereich abgewinkelt ist bzw. abgeknickt verläuft, ist eine besonders gute Handhabbarkeit bei besonders vielen unterschiedlichen Haltepositionen der Hände des Bedienenden sowohl bei Einhand- als auch Zweihandbedienung gesichert .Characterized in that the tool, preferably at an angle of less than 90 °, in particular by 60 °, is attached to the housing at an angle to the housing axis, a small area of the housing receiving the tool being inclined parallel or in alignment with the tool or bent relative to the elongated area and that a small area of the rear end of the housing facing away from the tool is also angled or kinked, preferably by less than 90 °, in particular by 60 °, with respect to the elongated area, is particularly easy to handle with a particularly large number of different holding positions the operator's hands are secured with both one-hand and two-hand operation.
Dadurch, daß der abgeknickte, das Werkzeug aufnehmende Bereich des Gehäuses an der Abknickung eine Taillierung auf- weist, ist den Fingern der Bedienhände ein besonders sicherer, definierter Halt gegeben.Because the bent, tool-receiving area of the housing has a waist at the kink. points, the fingers of the operating hands are given a particularly secure, defined hold.
Dadurch, daß das Gehäuse im Bereich der Abknickung einen zumindest teilweise kugeligen Bereich aufweist, haben die Bedienhände einen großflächig anliegenden, bequemen Halt.Because the housing has an at least partially spherical area in the area of the kink, the operating hands have a comfortable, large-area grip.
Dadurch, daß seitlich am kugeligen Bereich, insbesondere an je einer Gehäuseschale je ein seitlicher Einzug angeordnet ist, wird die GriffSicherheit am Gehäuse weiter verbessert, wobei der Ringwulst an dem das Werkzeug aufnehmenden, abgeknickten Bereich des Gehäuses nahe der Werkzeugaufnahme ein ungewolltes Berühren des Bürstenwerkzeugs durch die Bedienhand verhindert und die Arbeitssicherheit verbessert.The fact that a lateral indentation is arranged on the side of the spherical area, in particular on each housing shell, further improves the grip security on the housing, with the annular bead on the bent region of the housing receiving the tool near the tool holder, causing unwanted touching of the brush tool prevents the operator's hand and improves work safety.
Dadurch, daß die Kontur der Taillierung in den Ringwulst abgerundet übergeht, ist die Handhabung besonders bequem.The fact that the contour of the waist is rounded in the ring bead, the handling is particularly convenient.
Dadurch, daß die Handwerkzeugmaschine eine überrastbare Spanneinrichtung für auswechselbare Bürstenwerkzeuge unterschiedlicher Größe und Form aufweist, ist ein universeller Einsatz bei schnellem Bürstenwechsel gesichert.The fact that the hand-held power tool has a snap-on clamping device for interchangeable brush tools of different sizes and shapes ensures universal use in the case of quick brush changes.
Dadurch, daß die Spanneinrichtung mittels einer Taste lösbar ist, ist der Werkzeugwechsel schnell und bequem möglich.Because the clamping device can be released by means of a button, the tool change is possible quickly and easily.
Dadurch, daß die Taste aus einem Bereich des Ringwulsts gebildet wird, ist sie besonder leicht von der Hand des Bedienenden erreichbar. Dadurch, daß das Gehäuse in Schalenbauweise hergestellt ist, ist das beidenends abgeknickte Gehäuse verwindungs- und biegesteifer und leichter montierbar als in Topfbauweise .Because the button is formed from an area of the ring bead, it is particularly easy to reach by the operator's hand. The fact that the housing is made in shell construction, the bent housing at both ends is torsion and bending resistant and easier to assemble than in pot construction.
Zeichnungdrawing
Nachfolgend ist die Erfindung an Hand von Ausführungsbei- spielen mit zugehörigen Zeichnungen erläutert.The invention is explained below on the basis of exemplary embodiments with associated drawings.
Es zeigenShow it
Figur 1 eine Seitenansicht einer Elektroburste mit beidenends in Längsrichtung schräg abgewinkeltem Gehäuse, Figur 2 eine Ansicht von oben auf die Elektroburste gemäß Figur 1, die Figuren 3, 4 zwei weitere Ausführungsbeispiele einer Elektroburste , die Figuren 5 bis 9 das Ausführungsbeispiel der Elektroburste gemäß Figur 1 in unterschiedlichen Zweihand-Bedienpositionen und Figur 10 diese Elektroburste in Einhand-Bedienposition.1 shows a side view of an electric brush with a housing angled obliquely in the longitudinal direction, FIG. 2 shows a view from above of the electric brush according to FIG. 1, FIGS. 3, 4 show two further exemplary embodiments of an electric brush, FIGS. 5 to 9 show the exemplary embodiment of the electric brush according to FIG. 1 in different two-hand operating positions and Figure 10 this electric brush in one-hand operating position.
Beschreibung der AusführungsbeispieleDescription of the embodiments
Das in Figur 1 im Längsschnitt gezeigte als Elektroburste 10 ausgestaltet Handwerkzeug hat ein Gehäuse 12, das mittig etwa zylindrisch länglich als Gehäusehauptteil 12a verläuft und das beidenends längs nach unten unter einem Winkel von ca. 45° als vordere und hintere Abknickung 28, 30 ausgestaltet ist. Das Gehäusehauptteil (12a) enthält einen Elektromo- tor 14, der über ein Getriebe 16 mit einer Abtriebswelle 18 drehverbunden ist. Die Abtriebswelle 18 nimmt ein auswechselbar einsteckbares Bürstenwerkzeug 20 zur Drehmitnahme drehfest einspannbar auf. Das Bürstenwerkzeug 20 trägt ein schaftartiges Einsteckende, das in einer nicht näher bezeichneten Spanneinrichtung der Abtriebswelle 18 drehfest verriegelbar, unverlierbar einsteckbar ist.The handheld tool shown in longitudinal section in FIG. 1 is designed as an electric brush 10 and has a housing 12 which extends in the middle in an approximately cylindrical, elongated manner as the main housing part 12a and which is configured at both ends longitudinally at an angle of approximately 45 ° as a front and rear bend 28, 30 . The main housing part (12a) contains an electric motor 14 which is rotatably connected to an output shaft 18 via a gear 16. The output shaft 18 receives an interchangeably insertable brush tool 20 so that it can be rotatably clamped for rotational driving. The brush tool 20 has a shank-like insertion end, which can be locked in a rotationally fixed manner in a tensioning device of the output shaft 18, which cannot be lost.
In seinem geraden mittleren Bereich, dem Gehäusehauptteil 12a, trägt das Getriebegehäuse 12 auf seiner Oberseite einen Schalt-Schieber 22 zum Betätigen eines Elektroschalters zum Ein- und Ausschalten des Elektromotors 14. Ein unten aus dem hinteren Ende 30 austretendes Elektrokabel dient der Energieversorgung des Elektromotors 14. Weiter ist ein Stellrad 25 einer elektronischen Drehzahlregelung am Ende der hinteren Abknickung 30 des Gehäuses 12 angeordnet.In its straight middle region, the main housing part 12a, the transmission housing 12 carries on its upper side a switching slide 22 for actuating an electric switch for switching the electric motor 14 on and off. An electric cable emerging from the rear end 30 serves to supply power to the electric motor 14 Furthermore, a setting wheel 25 of an electronic speed control is arranged at the end of the rear bend 30 of the housing 12.
In Betrachtungsrichtung rechts geht der Gehäusehauptteil 12a in die vordere, nach unten gerichtete Abknickung 28 über, wobei im Bereich der Abknickung 28 die Oberseite des Gehäuses 12 als knieartiger Kugel-Bereich 26 ausgestaltet ist.In the viewing direction on the right, the main housing part 12a merges into the front, downward bend 28, the upper side of the housing 12 being designed as a knee-like spherical region 26 in the region of the bend 28.
Die vordere Abknickung 28 geht unten, an ihrem freien Ende nahe benachbart zum Koppelbereich des Bürstenwerkzeugs 20 in einen Ringwulst 34 über. Der Ringwulst 34 dient zum Abstützen der Führungshand des Bedienenden und soll ein Abrutschen der Hand zum Bürstenwerkzeug 20 hin vermeiden.The front bend 28 merges at the bottom, at its free end close to the coupling area of the brush tool 20, into an annular bead 34. The annular bead 34 serves to support the operator's guiding hand and is intended to prevent the hand from slipping towards the brush tool 20.
Ein Segmentbereich des Ringwulstes 34 ist als Drucktaste 32 ausgestaltet, mit der die nicht näher beschriebene Spanneinrichtung durch Niederdrücken lösbar ist, so daß das Bürstenwerkzeug 20 anschließend leicht entnehmbar ist.A segment area of the annular bead 34 is designed as a pushbutton 32 with which the clamping device (not described in more detail) can be released by pressing it down, so that the brush tool 20 can then be easily removed.
Zwischen dem Kugel-Bereich 26 und der vorderen Abknickung 2E ist eine Taille 36 eingeformt, die der Handwerkzeugmaschine 10 eine besonders gute Griffigkeit verleiht. Auf der dem Kugel-Bereich 26 gegenüberliegenden Unterseite weist das Gehäuse 12 einen konkav geformten Einzug 38 auf, der sich seitlich in jeder der Gehäuseschalen 11 und 13 (Figur 2) in taillenartigen Einzügen 38', 39 fortsetzt.A waist 36 is formed between the ball region 26 and the front bend 2E, which gives the handheld power tool 10 a particularly good grip. On the underside opposite the spherical region 26, the housing 12 has a concave-shaped indentation 38 which continues laterally in each of the housing shells 11 and 13 (FIG. 2) in waist-like indentations 38 ', 39.
Die Figur 2 zeigt eine Draufsicht auf das Ausführungsbei- spiel gemäß Figur 1, wobei besonders deutlich der Schalt- Schieber 22 oben am Gehäusehauptteil 12a, die Gehäuseschalen 11, 13 des Gehäuses 12, der Kugel-Bereich 26, die Taille 36, die taillenartigen Einzüge 38', 39, die vordere Abknickung 28, der Ringwulst 34, die Drucktaste 32 sowie die hintere Abknickung 30 erkennbar sind.FIG. 2 shows a top view of the exemplary embodiment according to FIG. 1, the switching slide 22 at the top of the main housing part 12a, the housing shells 11, 13 of the housing 12, the spherical region 26, the waist 36 and the waist-like indentations being particularly clear 38 ', 39, the front bend 28, the annular bead 34, the push button 32 and the rear bend 30 can be seen.
Das in Figur 3 gezeigte weitere Ausführungsbeispiel einer Elektroburste 50 stimmt prinzipiell mit dem gemäß Figur 1 überein, wobei sich nur die an ihren Kugel -Bereich 66 anschließenden taillenartigen Einzüge 78, 79 vom vorigen Ausführungsbeispiel unterscheiden.The further exemplary embodiment of an electric brush 50 shown in FIG. 3 agrees in principle with that according to FIG. 1, only the waist-like indentations 78, 79 adjoining its spherical region 66 differing from the previous exemplary embodiment.
Das in Figur 4 gezeigte Ausführungsbeispiel unterscheidet sich von den vorangegangenen Ausführungsbeispielen durch einen geringfügig längeren Bereich der vorderen Abknickung 108 ohne taillenartige Einzüge und durch eine pistolengriff- artig geformte hintere Abknickung 110.The exemplary embodiment shown in FIG. 4 differs from the previous exemplary embodiments by a slightly longer region of the front bend 108 without a waist-like indentation and by a rear bend 110 shaped like a pistol grip.
Figur 5 zeigt die Elektroburste 10 gemäß Figur 1 und 2 im Zweihandbetrieb, wobei die rechte Bedien-Hand R den Bereich der hinteren Abknickung 30 wie einen Pistolengriff umgreift und die linke Bedien-Hand L von oben auf den Kugel-Bereich 26 der vorderen Abknickung 28 greift, wobei die Finger besonders guten Halt im Einzug 38 finden. Auf diese Weise kann mit der linken Bedien-Hand L ein erheblicher Arbeitsdruck auf das nichtdargestellte Bürstenwerkzeug ausgeübt werden. Figur 6 zeigt die gleiche Maschine wie Figur 5, wobei die linke Bedien-Hand L den Bereich der hinteren Abknickung 30 wie einen Pistolengriff umspannt hält und wobei die rechte Bedien-Hand R das Gehäuse 12 im Bereich der vorderen Abknik- kung 28 von oben bzw. seitlich übergreift. In dieser Position ist mit der rechten Bedien-Hand R ein erheblicher Arbeitsdruck auf das nichtdargestellte Bürstenwerkzeug ergo- nomisch günstig ausübbar.FIG. 5 shows the electric brush 10 according to FIGS. 1 and 2 in two-hand operation, the right control hand R encompassing the area of the rear bend 30 like a pistol grip and the left control hand L from above onto the ball area 26 of the front bend 28 engages, the fingers find particularly good hold in the feed 38. In this way, a considerable working pressure can be exerted on the brush tool (not shown) with the left operating hand L. FIG. 6 shows the same machine as FIG. 5, the left control hand L holding the area of the rear bend 30 spanned like a pistol grip and the right control hand R holding the housing 12 in the area of the front bend 28 from above or respectively overlaps laterally. In this position, a considerable working pressure can be exerted on the brush tool (not shown) in an ergonomically favorable manner with the right operating hand R.
Figur 7 zeigt die Elektroburste 10 bei Überkopfarbeiten, wobei die rechte Bedien-Hand R die hintere Abknickung 30 wie einen Pistolengriff umgreift und die linke Bedien-Hand L seitlich von unten die vordere Abknickung 28 umgreift. In diesem Fall kann die linke Bedien-Hand L ermüdungsfrei hohe Bedienkräfte auf das nichtdargestellte Bürstenwerkzeug aufbringen.FIG. 7 shows the electric brush 10 when working overhead, the right control hand R embracing the rear bend 30 like a pistol grip and the left control hand L embracing the front bend 28 laterally from below. In this case, the left operating hand L can apply high operating forces to the brush tool (not shown) without fatigue.
Figur 8 zeigt die Handwerkzeugmaschine im Prinzip so wie in Figur 7 gehandhabt, wobei jedoch der Daumen der linken Be- dien-Hand L das Gehäuse 12 im Bereich des Einzugs 38 nicht untergreift, sondern sich seitlich auf die Gehäuseschale 11 stützt und dadurch einen hohen seitlichen Arbeitsdruck auf das Gehäuse 12 und damit auf das nichtdargestellte Bürstenwerkzeug aufbringen kann.FIG. 8 shows the hand-held power tool in principle as handled in FIG. 7, but the thumb of the left operating hand L does not reach under the housing 12 in the area of the feeder 38, but is supported laterally on the housing shell 11 and thereby has a high lateral Can apply working pressure on the housing 12 and thus on the brush tool, not shown.
Figur 9 zeigt die Handhabung der Handwerkzeugmaschine 10, wobei die linke Bedien-Hand L das Gehäuse 12 an der vorderen Abknickung 28 im Bereich des Einzugs 38 untergreift und wobei die rechte Bedien-Hand R die hintere Abknickung 30 von oben her übergreift, so daß die Handwerkzeugmaschine 10 zwischen der linken und rechten Bedien-Hand L, R sicher verspannt gehalten und geführt werden kann.Figure 9 shows the handling of the hand tool 10, the left control hand L engages under the housing 12 at the front bend 28 in the area of the feed 38 and the right control hand R overlaps the rear bend 30 from above, so that the Hand machine tool 10 can be securely clamped and guided between the left and right operating hand L, R.
Figur 10 zeigt die Handwerkzeugmaschine 10 im Einhandbetrieb nur in der rechten Bedien-Hand R gehalten, wobei der Zeige- finger und nachfolgende Finger das Gehäuse 12 im Bereich des Einzugs 38 an der vorderen Abknickung 28 untergreift und der Daumen das Gehäuse 12 oben übergreift. In dieser GriffPosition ist die Maschine 10 auch mit einer einzigen Hand sicher zu halten und zum Ausgleichen entsprechender Reaktionskräfte der Handwerkzeugmaschine beim Arbeiten mit dem nichtdarge- stellten Bürstenwerkzeug geeignet. FIG. 10 shows handheld power tool 10 held in one-hand operation only in the right operating hand R, with the pointing finger and subsequent fingers engages under housing 12 in the area of indentation 38 at front bend 28 and the thumb engages over housing 12 at the top. In this gripping position, the machine 10 can also be held securely with a single hand and is suitable for compensating the corresponding reaction forces of the hand tool when working with the brush tool, not shown.

Claims

Ansprüche Expectations
1. Handwerkzeugmaschine (10) mit länglichem Gehäuse (12) mit zum Gehäusehauptteil (12a) abgewinkelt angeordnetem, rotierendem Werkzeug (20) , insbesondere Einsatz-Bürstenwerkzeug, dadurch gekennzeichnet, daß das Werkzeug (20) weniger als 90°, vorzugsweise höch- stens 60° gegenüber dem Gehäusehauptteil (12a) abgewinkelt am Gehäuse (12) befestigt ist, wobei ein Bereich des das Werkzeug (20) aufnehmenden Gehäuses (12) parallel bzw. fluchtend zum Werkzeug (20) und geneigt gegenüber dem Gehäusehauptteil (12a) als vordere Abknickung (28) ausgestaltet ist und daß ein Bereich des dem Werkzeug (20) abgewandten, hinteren Endes des Gehäuses (12) ebenfalls um weniger als 90°, vorzugsweise höchstens 60°, nach unten gegenüber dem Gehäusehauptteil (12a) abgewinkelt als hintere Abknickung (30) ausgestaltet ist.1. Hand tool (10) with an elongated housing (12) with a rotating tool (20), in particular an insert brush tool, arranged at an angle to the main housing part (12a), characterized in that the tool (20) is less than 90 °, preferably at most Angled at 60 ° with respect to the main housing part (12a) is attached to the housing (12), a region of the housing (12) receiving the tool (20) being parallel or in alignment with the tool (20) and inclined with respect to the main housing part (12a) as the front Bend (28) is designed and that a region of the rear end of the housing (12) facing away from the tool (20) is also angled downward by less than 90 °, preferably at most 60 °, relative to the main housing part (12a) as a rear bend ( 30) is designed.
2. Handwerkzeugmaschine nach Anspruch 1, dadurch gekennzeichnet, daß das Gehäuse (12) im Bereich der vorderen Abknickung (28) eine Taillierung (36) aufweist.2. Hand tool according to claim 1, characterized in that the housing (12) has a waist (36) in the region of the front bend (28).
3. Handwerkzeugmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Gehäuse (12) zumindest oben im Bereich der vorderen Abknickung (28) einen gewölbt, insbesondere kugelig ausgeformten Bereich (26) aufweist. 3. Hand tool according to claim 1 or 2, characterized in that the housing (12) at least above in the region of the front bend (28) has an arched, in particular spherically shaped area (26).
4. Handwerkzeugmaschine nach Anspruch 3, dadurch gekennzeichnet, daß die Taillierung (36) seitlich am kugeligen Bereich (26), insbesondere an jeder Gehäuseschale (11, 13) des längsgeteilten Gehäuses (12) , je als seitlicher Einzug (38, 39) ausgestaltet ist.4. Hand tool according to claim 3, characterized in that the waist (36) laterally on the spherical region (26), in particular on each housing shell (11, 13) of the longitudinally divided housing (12), each designed as a side feed (38, 39) is.
5. Handwerkzeugmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die vordere Abknickung (28) des Gehäuses (12) an ihrem Ende, insbesondere nahe dem eingespannten Bürstenwerkzeug (20), einen Ringwulst (34) trägt.5. Hand tool according to claim 1, characterized in that the front bend (28) of the housing (12) at its end, in particular near the clamped brush tool (20), carries an annular bead (34).
6. Handwerkzeugmaschine nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die vordere und die hintere Ab- knickung (28, 30) jeweils kürzer als der Gehäusehauptteil (12a) ist.6. Hand tool according to one of the preceding claims, characterized in that the front and the rear kink (28, 30) are each shorter than the main housing part (12a).
7. Handwerkzeugmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie eine überrastbare Spanneinrichtung für auswechselbare Bürstenwerkzeuge (20) , insbesondere unterschiedlicher Größe und Form, aufweist.7. Hand tool according to one of the preceding claims, characterized in that it has a snap-on clamping device for interchangeable brush tools (20), in particular of different sizes and shapes.
8. Handwerkzeugmaschine nach Anspruch 7, dadurch gekennzeichnet, daß sie eine Taste (32) zum Lösen der Spannein- richtung trägt.8. Hand tool according to claim 7, characterized in that it carries a button (32) for releasing the clamping device.
9. Handwerkzeugmaschine nach Anspruch 8, dadurch gekennzeichnet, daß die Taste (32) aus einem Abschnitt des Ring- wulsts (34) gebildet wird. 9. Hand tool according to claim 8, characterized in that the button (32) from a portion of the annular bead (34) is formed.
10. Handwerkzeugmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (12) in Schalenbauweise hergestellt ist. 10. Hand tool according to one of the preceding claims, characterized in that the housing (12) is made in shell construction.
PCT/DE1998/001046 1997-09-24 1998-04-11 Hand-held machine-tool having a front and a rear parts which are offset relative to the housing for two-hand use WO1999015316A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP98931910A EP1017545B1 (en) 1997-09-24 1998-04-11 Hand-held machine-tool having a front and a rear parts which are offset relative to the housing for two-hand use
DE59813832T DE59813832D1 (en) 1997-09-24 1998-04-11 HAND TOOL MACHINE WITH A FRONT AND BACK REVERSE OF THE TWO HANDHELD BUILDING
JP2000512670A JP2001517560A (en) 1997-09-24 1998-04-11 Hand tool machine
BR9812670-9A BR9812670A (en) 1997-09-24 1998-04-11 Machine tools

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29717071.6 1997-09-24
DE29717071U DE29717071U1 (en) 1997-09-24 1997-09-24 Hand tool

Publications (1)

Publication Number Publication Date
WO1999015316A1 true WO1999015316A1 (en) 1999-04-01

Family

ID=8046388

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/001046 WO1999015316A1 (en) 1997-09-24 1998-04-11 Hand-held machine-tool having a front and a rear parts which are offset relative to the housing for two-hand use

Country Status (6)

Country Link
EP (1) EP1017545B1 (en)
JP (1) JP2001517560A (en)
CN (1) CN1145546C (en)
BR (1) BR9812670A (en)
DE (2) DE29717071U1 (en)
WO (1) WO1999015316A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6886614B2 (en) 2002-05-16 2005-05-03 Hunt Holdings, Inc. Pencil sharpener
EP1612002A1 (en) * 2004-07-02 2006-01-04 BLACK & DECKER INC. Power tool

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5431744B2 (en) * 2009-02-10 2014-03-05 株式会社やまびこ Top handle type portable power working machine
DE102009027640A1 (en) * 2009-07-13 2011-01-20 Robert Bosch Gmbh Hand tool with two-hand registration
CN110613395B (en) * 2019-08-07 2021-09-07 尚科宁家(中国)科技有限公司 Hand-held type cleaning device
CN111890193A (en) * 2020-06-22 2020-11-06 苏州安萃普智能科技有限公司 Hand-held electric tool

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129334A (en) * 1982-11-04 1984-05-16 Chubb Fire Security Ltd Fluid discharge device
EP0129754A1 (en) * 1983-06-28 1985-01-02 Robert Bosch Gmbh Electric hand tool with a divisible enclosure
US4810855A (en) * 1985-04-24 1989-03-07 Magic Line S.P.A. Combined set of household electrical appliances and a handgrip therefor
GB2234932A (en) * 1989-07-29 1991-02-20 Andrew Gordon Cameron Bruce Implements with handles
US5125130A (en) * 1990-07-12 1992-06-30 Stanish Walter F Ergonomic handle for tools and sporting equipment
US5423102A (en) * 1994-08-19 1995-06-13 Madison; Ava Portable cleaning device
EP0657255A1 (en) * 1993-12-10 1995-06-14 Black & Decker Inc. Improved electrically operated tool
WO1996041704A1 (en) * 1995-06-13 1996-12-27 Ergonomi Design Gruppen Ab Portable electrically driven tool
DE19547332A1 (en) * 1995-12-19 1997-06-26 Bosch Gmbh Robert Electric hand machine tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9323110D0 (en) * 1993-11-09 1994-01-05 Black & Decker Inc Improved shaft assembly

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129334A (en) * 1982-11-04 1984-05-16 Chubb Fire Security Ltd Fluid discharge device
EP0129754A1 (en) * 1983-06-28 1985-01-02 Robert Bosch Gmbh Electric hand tool with a divisible enclosure
US4810855A (en) * 1985-04-24 1989-03-07 Magic Line S.P.A. Combined set of household electrical appliances and a handgrip therefor
GB2234932A (en) * 1989-07-29 1991-02-20 Andrew Gordon Cameron Bruce Implements with handles
US5125130A (en) * 1990-07-12 1992-06-30 Stanish Walter F Ergonomic handle for tools and sporting equipment
EP0657255A1 (en) * 1993-12-10 1995-06-14 Black & Decker Inc. Improved electrically operated tool
US5423102A (en) * 1994-08-19 1995-06-13 Madison; Ava Portable cleaning device
WO1996041704A1 (en) * 1995-06-13 1996-12-27 Ergonomi Design Gruppen Ab Portable electrically driven tool
DE19547332A1 (en) * 1995-12-19 1997-06-26 Bosch Gmbh Robert Electric hand machine tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6886614B2 (en) 2002-05-16 2005-05-03 Hunt Holdings, Inc. Pencil sharpener
EP1612002A1 (en) * 2004-07-02 2006-01-04 BLACK & DECKER INC. Power tool

Also Published As

Publication number Publication date
BR9812670A (en) 2000-08-22
CN1271307A (en) 2000-10-25
JP2001517560A (en) 2001-10-09
DE59813832D1 (en) 2007-01-11
EP1017545A1 (en) 2000-07-12
DE29717071U1 (en) 1999-02-04
EP1017545B1 (en) 2006-11-29
CN1145546C (en) 2004-04-14

Similar Documents

Publication Publication Date Title
EP1116551B1 (en) Hand guided sanding device
DE19745306C2 (en) Handle arrangement for an angle grinder
EP1312448B1 (en) Electric hand tool with handle
DE102010007193B4 (en) TopHandle portable work machine
EP2756928B1 (en) Portable tool with ergonomic handle
DE102012212803B4 (en) Hand tool attachment handle
EP2029323B1 (en) Hand-held grinder
EP1017545B1 (en) Hand-held machine-tool having a front and a rear parts which are offset relative to the housing for two-hand use
DE602004002630T2 (en) Swivel handle assembly for a power tool
DE3341823A1 (en) HANDLE ARRANGEMENT ON ELECTRIC TOOLS
DE10003984A1 (en) Tool with a drive motor
DE4119325A1 (en) Portable power tool with hand support strap - which forms loop fitting over back of operator's hand when tool is gripped
EP1049570A2 (en) Hand controlled motor driven oscillating device
DE9208940U1 (en) Hand tool with dust extraction
CH666640A5 (en) Electric hand drill or polisher attachment - includes support holder worn by operator and flexible drive shaft for auxiliary hand tool
EP3558607A1 (en) Power tool having at least one motor axis and one output axis
EP3134230B1 (en) Hand-operated machine tool with ergonomic grip part
DE2559132C2 (en) Handle assembly for portable power tools
DE19930008A1 (en) Electric hand tool has support attachment for user's forearm
DE2332454B2 (en) GUIDE DEVICE FOR HANDBAND SANDING MACHINES OR THE SAME
DE19647992A1 (en) Motor-driven hand drill, screw driver, etc.
DE102004007764B3 (en) Hand held electric drill or screwdriver with secondary detachable snap-fit U-shaped handle
DE3303036A1 (en) Handle for hand-guided equipment
CH666206A5 (en) HANDLE FOR DRILLING MACHINES AND / OR DRILLING HAMMER.
WO2005053921A1 (en) Grip for a hand-guided tool

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 98809502.5

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): BR CN JP

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1998931910

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1998931910

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1998931910

Country of ref document: EP