EP0856385B1 - Portable handtool - Google Patents

Portable handtool Download PDF

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Publication number
EP0856385B1
EP0856385B1 EP97122891A EP97122891A EP0856385B1 EP 0856385 B1 EP0856385 B1 EP 0856385B1 EP 97122891 A EP97122891 A EP 97122891A EP 97122891 A EP97122891 A EP 97122891A EP 0856385 B1 EP0856385 B1 EP 0856385B1
Authority
EP
European Patent Office
Prior art keywords
handle
shell element
hand
machine tool
tool according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97122891A
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German (de)
French (fr)
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EP0856385A1 (en
Inventor
Hermann Schaible
Robert Simm
Reto Michel
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.)
Scintilla AG
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Scintilla AG
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Filing date
Publication date
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Publication of EP0856385A1 publication Critical patent/EP0856385A1/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/006—Vibration damping means
    • 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

Definitions

  • the invention is based on a hand machine tool the preamble of claim 1. It is such a hand machine tool known from DE 195 38 252 A1.
  • the shell element has engagement projections on its outer edge on, which in corresponding receiving grooves in Intervene in the handle.
  • the shell element is either screwed or clamped with the handle. In each Fall is between the shell element and handle a backlash-free Connection provided. Operation of the hand machine tool without a shell element is not permitted, because only that Shell element the handle against the ingress of dirt or water protects. When operating the hand tool Vibrations that occur cannot be effectively damped become.
  • the invention is based on the object effective shock absorption with easy handling of the hand tool ensure, the hand tool also at removed shell element fully functional is. This task is characterized by the characteristics of the characterizing part of claim 1 solved.
  • FIG. 1 shows a section through the handle part a hand power tool
  • Figure 2 is a view of the handle part with the damping device removed
  • FIG. 4 shows a view of the handle part according to FIG. 3 in Contact position.
  • 10 denotes a hand tool, of which a rear part is shown.
  • the hand machine tool 10 has a machine housing 11 which i.a. one Drive motor 12 takes.
  • To the machine housing 11, which is composed in a known manner from two housing shells is also a two-shell composite Handle 13 molded.
  • a Switch 14 by means of which the drive motor 12 via a Push button 15 is controllable.
  • the handle 13 has a known, pistol grip-like shape that allows the user to apply a pressing force in the direction of a tool progress enables. In the example shown, it is in the hand-held power tool 10 by an impact drill or a hammer drill, in which the tool progress in the longitudinal direction of the drilling tool and therefore a pressing force is to be applied in the direction of an arrow 21.
  • the housing wall serves as the pressure surface for the operator on the rear part 24 of the handle 13.
  • This Part 24 of the handle 13 is of a shell element 25 covered, which consists of a hard base body 26, which has a soft coating 27 in the area of the pressing surface wearing.
  • the shell element 25 is in fastening points 30, 31 with connected to the machine housing 11 or to the handle 13.
  • a first attachment point 30 is in the area of the free End 18 of the handle 13 is provided.
  • the from a resilient tongue 32 formed on the base body 26 is formed, on which a locking hook 33 is formed.
  • the Locking hook 33 engages behind in the mounting position of the shell element 25 a projection 34 on the handle housing 13.
  • a second attachment point 31 is on the machine side End of the handle 13 in the area of its approach to the machine housing 11 provided.
  • the tab 36 engages behind a paragraph 38 on the machine housing 11, the serves as a stop for the tab 36.
  • the special type of attachment of the shell element 25 ensures in the first attachment point 30 almost backlash-free connection of shell element 25 and handle 13 in the pressing direction (arrow 21).
  • the receiving opening 37 is significantly wider than the tab 36 so that in the pressing direction (arrow 21) there is a clear play of movement.
  • the shell element 25 around its first attachment point 30 pivotable within limits, so that the tab 36 when pressed in Direction of arrow 21 against one opposite paragraph 38 Stop on the machine housing 11 are pressed can.
  • the shell element 25 is removed from the handle 13 shown.
  • the handle 13 is also without a shell element 25 fully functional and in hand machine tools in the usual way composed of two housing shells, that roughly in a longitudinal plane of the hand tool 1 are divided.
  • the handheld power tool 10 such as conventional machines without special damping Handle is common, possible.
  • the handle 13 is to be equipped with effective damping the damping element 40 is in the recess 43 used.
  • the two housing shells to separate the machine housing 11 and the damping element 40 in between.
  • the damping element 40 is over an edge 40a in a form-fitting manner in the handle 13 or in the machine housing 11 held.
  • the tab 36 is first in the receiving opening 37th introduced, then the shell member 25 with his the first attachment point 30 facing end the handle 13 pressed, the tongue 32 on the projection 34 resiliently withdraws until the locking hook 33 behind the projection 34 can snap into place.
  • the shell element 25 is then attached to the handheld power tool 10 without tools and then takes in the direction of the arrow without exerting a pressing force 48 the rest position shown in Figure 3. Between the hidden ones and therefore dashed housing contours 11a, 25a of the machine housing 11 and the shell element 25 then in the area of the second fastening point 31 Game s.
  • the damping element 40 is thus between the machine housing 11 and shell element 25 interposed, that it is the shell element 25 under tension from the handle 13 away in the direction of the stop 38 on the machine housing 11 urges, which limits the game to a maximum value s becomes.
  • the shell element 25 is, for example, by Opening the two-shell machine housing 11 possible because then the locking hook 33 can be moved laterally past the projection 34 is. But it would also be conceivable in the handle housing provide an opening through which the tongue 32 pushed back in the sense of an unlatching on the projection 34 can be.
  • the hand tool 10 is in the working position shown in which on the shell member 25 by the operator Pressing force 48 is applied.
  • the damping element 40 is elastically deformed by a maximum of the game s.
  • the Shell element 25 then comes at least with its tab 36 for contact with the machine housing 11.

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer Handwerkzeugmaschine nach dem Oberbegriff des Anspruchs 1. Es ist schon eine derartige Handwerkzeugmaschine bekannt aus der DE 195 38 252 A1. Das Schalenelement weist an seiner Außenkante Eingriffvorsprünge auf, die in korrespondierende Aufnahmerillen im Handgriff eingreifen. Zusätzlich ist das Schalenelement entweder mit dem Handgriff verschraubt oder verspannt. In jedem Fall ist zwischen Schalenelement und Handgriff eine spielfreie Verbindung vorgesehen. Ein Betrieb der Handwerkzeugmaschine ohne Schalenelement ist nicht zulässig, da erst das Schalenelement den Handgriff gegen Eindringen von Schmutz oder Wasser schützt. Beim Betrieb der Handwerkzeugmaschine auftretende Schwingungen können nicht wirksam abgedämpft werden.The invention is based on a hand machine tool the preamble of claim 1. It is such a hand machine tool known from DE 195 38 252 A1. The shell element has engagement projections on its outer edge on, which in corresponding receiving grooves in Intervene in the handle. In addition, the shell element is either screwed or clamped with the handle. In each Fall is between the shell element and handle a backlash-free Connection provided. Operation of the hand machine tool without a shell element is not permitted, because only that Shell element the handle against the ingress of dirt or water protects. When operating the hand tool Vibrations that occur cannot be effectively damped become.

Aus der DE 41 24 574 A1 ist ein Bohrhammer bekannt, bei dem der Handgriff über ein Drehgelenk am Maschinengehäuse befestigt ist. Zusätzlich zum Drehgelenk ist der Handgriff mit dem Maschinengehäuse über ein Federsystem gekoppelt. Diese Ankopplung hat jedoch den Nachteil, daß die Handhabbarkeit des Arbeitsgeräts wegen des allein über das Federsystem begrenzten Federweges zwischen Handgriff und Maschinengehäuse erschwert wird.From DE 41 24 574 A1 a rotary hammer is known in which the handle is attached to the machine housing via a swivel joint is. In addition to the swivel, the handle is included coupled to the machine housing via a spring system. This However, coupling has the disadvantage that it is easy to handle of the implement because of the limited only by the spring system Travel between the handle and the machine housing is difficult.

Vorteile der ErfindungAdvantages of the invention

Der Erfindung liegt die aufgabe zugrunde, eine wirksame Schlagdämpfung bei guter Handhabbarkeit der Handwerkzeugmaschine zu gewährleisten, wobei die Handwerkzeugmaschine auch bei abgenommenem Schalenelement uneingeschränkt funktionsfähig ist. Diese aufgabe wird durch die Merkmale des kennzeichnenden Teils des Anspruchs 1 gelöst.The invention is based on the object effective shock absorption with easy handling of the hand tool ensure, the hand tool also at removed shell element fully functional is. This task is characterized by the characteristics of the characterizing part of claim 1 solved.

Durch die in abhängigen Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der erfindungsgemäßen Handwerkzeugmaschine möglich.Through the measures listed in dependent claims are advantageous developments and improvements of the invention Hand tool possible.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen Schnitt durch den Griffteil einer Handwerkzeugmaschine, Figur 2 eine Ansicht des Griffteils bei abgenommener Dämpfungseinrichtung, Figur 3 eine Ansicht des Griffteils mit Dämpfungseinrichtung in Ruhestellung und Figur 4 eine Ansicht des Griffteils nach Figur 3 in Anpreßstellung.An embodiment of the invention is in the drawing shown and explained in more detail in the following description. 1 shows a section through the handle part a hand power tool, Figure 2 is a view of the handle part with the damping device removed, FIG View of the handle with damping device in the rest position and FIG. 4 shows a view of the handle part according to FIG. 3 in Contact position.

Beschreibung des AusführungsbeispielsDescription of the embodiment

In Figur 1 ist mit 10 eine Handwerkzeugmaschine bezeichnet, von der ein hinterer Teil dargestellt ist. Die Handwerkzeugmaschine 10 weist ein Maschinengehäuse 11 auf, das u.a. einen Antriebsmotor 12 aufnimmt. An das Maschinengehäuse 11, das in bekannter Weise aus zwei Gehäuseschalen zusammengesetzt ist, ist ein ebenfalls zweischalig zusammengesetzter Handgriff 13 angeformt. Im Handgriff 13 befindet sich ein Schalter 14, mittels dem der Antriebsmotor 12 über einen Drucktaster 15 steuerbar ist. An einem freien Ende 18 des Handgriffs 13 ist eine Verstärkungsmuffe 19 für ein Zuleitungskabel 20 befestigt. Der Handgriff 13 hat eine bekannte, pistolengriffähnliche Form, die dem Benutzer das Aufbringen einer Andrückkraft in Richtung auf einen Werkzeugfortschritt ermöglicht. Im dargestellten Beispielfall handelt es sich bei der Handwerkzeugmaschine 10 um ein Schlagbohrgerät bzw. einen Bohrhammer, bei dem der Werkzeugfortschritt in Längsrichtung des Bohrwerkzeugs erfolgt und daher eine Andrückkraft in Richtung eines Pfeils 21 aufzubringen ist.In FIG. 1, 10 denotes a hand tool, of which a rear part is shown. The hand machine tool 10 has a machine housing 11 which i.a. one Drive motor 12 takes. To the machine housing 11, which is composed in a known manner from two housing shells is also a two-shell composite Handle 13 molded. In the handle 13 there is a Switch 14, by means of which the drive motor 12 via a Push button 15 is controllable. At a free end 18 of the Handle 13 is a reinforcing sleeve 19 for a supply cable 20 attached. The handle 13 has a known, pistol grip-like shape that allows the user to apply a pressing force in the direction of a tool progress enables. In the example shown, it is in the hand-held power tool 10 by an impact drill or a hammer drill, in which the tool progress in the longitudinal direction of the drilling tool and therefore a pressing force is to be applied in the direction of an arrow 21.

Als Andruckfläche für den Bediener dient überwiegend die Gehäusewandung am rückseitigen Teil 24 des Handgriffs 13. Dieser Teil 24 des Handgriffs 13 ist von einem Schalenelement 25 überdeckt, das aus einem harten Grundkörper 26 besteht, der im Bereich der Andrückfläche einen weichen Überzug 27 trägt.The housing wall serves as the pressure surface for the operator on the rear part 24 of the handle 13. This Part 24 of the handle 13 is of a shell element 25 covered, which consists of a hard base body 26, which has a soft coating 27 in the area of the pressing surface wearing.

Das Schalenelement 25 ist in Befestigungsstellen 30, 31 mit dem Maschinengehäuse 11 bzw. mit dem Handgriff 13 verbunden. Eine erste Befestigungsstelle 30 ist im Bereich des freien Endes 18 des Handgriffs 13 vorgesehen. Zwischen Handgriff 13 und Schalenelement 25 besteht eine Schnappverbindung, die aus einer am Grundkörper 26 angeformten, federnden Zunge 32 gebildet wird, an der ein Rasthaken 33 angeformt ist. Der Rasthaken 33 hintergreift in der Montagestellung des Schalenelements 25 einen Vorsprung 34 am Handgriffgehäuse 13.The shell element 25 is in fastening points 30, 31 with connected to the machine housing 11 or to the handle 13. A first attachment point 30 is in the area of the free End 18 of the handle 13 is provided. Between handle 13 and shell element 25 is a snap connection, the from a resilient tongue 32 formed on the base body 26 is formed, on which a locking hook 33 is formed. The Locking hook 33 engages behind in the mounting position of the shell element 25 a projection 34 on the handle housing 13.

Eine zweite Befestigungsstelle 31 ist am maschinenseitigen Ende des Handgriffs 13 im Bereich seines Ansatzes zum Maschinengehäuse 11 vorgesehen. Zur Befestigung dient eine vom Schalenelement 25 quer zur Andrückrichtung wegstehende Lasche 36, die in eine entsprechend quer verlaufende Aufnahmeöffnung 37 im Maschinengehäuse 11 greift. Die Lasche 36 hintergreift dabei einen Absatz 38 am Maschinengehäuse 11, der als Anschlag für die Lasche 36 dient.A second attachment point 31 is on the machine side End of the handle 13 in the area of its approach to the machine housing 11 provided. One of the Shell element 25 protruding tab transversely to the pressing direction 36 in a correspondingly transverse receiving opening 37 engages in the machine housing 11. The tab 36 engages behind a paragraph 38 on the machine housing 11, the serves as a stop for the tab 36.

Die spezielle Art der Befestigung des Schalenelements 25 gewährleistet in der ersten Befestigungsstelle 30 eine nahezu spielfreie Verbindung von Schalenelement 25 und Handgriff 13 in Andrückrichtung (Pfeil 21). In der zweiten Befestigungsstelle 31 ist die Aufnahmeöffnung 37 deutlich breiter als die Lasche 36, so daß in Andrückrichtung (Pfeil 21) ein deutliches Bewegungsspiel vorhanden ist. Andererseits ist das Schalenelement 25 um seine erste Befestigungsstelle 30 in Grenzen schwenkbar, so daß die Lasche 36 beim Andruck in Richtung des Pfeils 21 gegen einen dem Absatz 38 gegenüberliegenden Anschlag am Maschinengehäuse 11 gedrückt werden kann.The special type of attachment of the shell element 25 ensures in the first attachment point 30 almost backlash-free connection of shell element 25 and handle 13 in the pressing direction (arrow 21). In the second attachment point 31, the receiving opening 37 is significantly wider than the tab 36 so that in the pressing direction (arrow 21) there is a clear play of movement. On the other hand the shell element 25 around its first attachment point 30 pivotable within limits, so that the tab 36 when pressed in Direction of arrow 21 against one opposite paragraph 38 Stop on the machine housing 11 are pressed can.

Aufgrund der Schlagwirkung der Handwerkzeugmaschine 10 werden im Betrieb Schwingungen auf den Handgriff 13 übertragen. Zwischen Schalenelement 25 und Maschinengehäuse 11 ist zur Reduzierung der auf den Bediener wirkenden Schwingungen ein Dämpfungselement 40 zwischengeschaltet. Am Schalenelement 25 ist eine Stützfläche 41 gebildet, die am Dämpfungselement 40 anliegt. Eine korrespondierende Auflagefläche 42 stützt das Dämpfungselement 40 gegenüber dem Maschinengehäuse 11 ab. Das Dämpfungselement 40 besteht aus einem Material mit stoßdämpfender Wirkung, beispielsweise einem Weichgummi.Due to the impact of the handheld power tool 10 transmit vibrations to the handle 13 during operation. Between the shell element 25 and the machine housing 11 is for Reduction of vibrations acting on the operator Damping element 40 interposed. On the shell element 25 a support surface 41 is formed, which on the damping element 40 is present. A corresponding bearing surface 42 supports this Damping element 40 from the machine housing 11. The damping element 40 consists of a material with shock-absorbing Effect, for example a soft rubber.

In Figur 2 ist das Schalenelement 25 vom Handgriff 13 abgenommen dargestellt. Der Handgriff 13 ist auch ohne Schalenelement 25 voll funktionsfähig und in bei Handwerkzeugmaschinen üblicher Art und Weise aus zwei Gehäuseschalen zusammengesetzt, die etwa in einer Längsebene der Handwerkzeugmaschine 1 geteilt sind. In der in Figur 2 dargestellten Form ist somit ein Betrieb der Handwerkzeugmaschine 10, wie er bei herkömmlichen Maschinen ohne spezielle Dämpfung am Handgriff üblich ist, möglich. Im Bereich des Handgriffs 13 erkennt man dann nach außen hin sichtbar eine nach hinten offene Aussparung 43 für das Dämpfungselement 40, eine Ausnehmung 44 für eine Versteifungsrippe 45 am Schalenelement 25, die Aufnahmeöffnung 37 an der zweiten Befestigungsstelle 31 und den Vorsprung 34 an der ersten Befestigungsstelle 30.In Figure 2, the shell element 25 is removed from the handle 13 shown. The handle 13 is also without a shell element 25 fully functional and in hand machine tools in the usual way composed of two housing shells, that roughly in a longitudinal plane of the hand tool 1 are divided. In the shown in Figure 2 Form is thus an operation of the handheld power tool 10, such as conventional machines without special damping Handle is common, possible. In the area of the handle 13 then you can see one visible to the outside open recess 43 for the damping element 40, a recess 44 for a stiffening rib 45 on the shell element 25, the receiving opening 37 at the second attachment point 31 and the projection 34 at the first fastening point 30.

Soll der Handgriff 13 mit einer wirksamen Dämpfung ausgestattet werden, wird das Dämpfungselement 40 in die Aussparung 43 eingesetzt. Hierzu sind die beiden Gehäuseschalen des Maschinengehäuses 11 zu trennen und das Dämpfungselement 40 dazwischen einzulegen. Nach anschließendem Zusammenfügen der beiden Gehäusehälften ist das Dämpfungselement 40 über einen Rand 40a formschlüssig im Handgriff 13 bzw. im Maschinengehäuse 11 gehalten. Zum Befestigen des Schalenelements 25 wird zunächst die Lasche 36 in die Aufnahmeöffnung 37 eingeführt, anschließend wird das Schalenelement 25 mit seinem der ersten Befestigungsstelle 30 zugewandten Ende gegen den Handgriff 13 gedrückt, wobei die Zunge 32 am Vorsprung 34 federnd zurückweicht bis der Rasthaken 33 hinter dem Vorsprung 34 einrasten kann. Das Schalenelement 25 ist dann werkzeuglos an die Handwerkzeugmaschine 10 angesetzt und nimmt dann ohne Ausübung einer Andrückkraft in Pfeilrichtung 48 die in Figur 3 gezeigte Ruhelage ein. Zwischen den verdeckten und daher gestrichelt gezeichneten Gehäusekonturen 11a, 25a von Maschinengehäuse 11 und Schalenelement 25 besteht dann im Bereich der zweiten Befestigungsstelle 31 ein Spiel s. Das Dämpfungselement 40 ist dabei so zwischen Maschinengehäuse 11 und Schalenelement 25 zwischengeschaltet, daß es das Schalenelement 25 unter Vorspannung vom Handgriff 13 weg in Richtung auf den Anschlag 38 am Maschinengehäuse 11 drängt, wodurch das Spiel auf einen Maximalwert s begrenzt wird. Das Schalenelement 25 ist beispielsweise durch Öffnen des zweischaligen Maschinengehäuses 11 möglich, da dann der Rasthaken 33 seitlich am Vorsprung 34 vorbei verschiebbar ist. Es wäre aber auch denkbar, im Handgriffgehäuse eine Öffnung vorzusehen, durch die hindurch die Zunge 32 im Sinne einer Entrastung am Vorsprung 34 zurückgedrückt werden kann.If the handle 13 is to be equipped with effective damping the damping element 40 is in the recess 43 used. For this purpose, the two housing shells to separate the machine housing 11 and the damping element 40 in between. After joining together of the two housing halves, the damping element 40 is over an edge 40a in a form-fitting manner in the handle 13 or in the machine housing 11 held. For attaching the shell element 25, the tab 36 is first in the receiving opening 37th introduced, then the shell member 25 with his the first attachment point 30 facing end the handle 13 pressed, the tongue 32 on the projection 34 resiliently withdraws until the locking hook 33 behind the projection 34 can snap into place. The shell element 25 is then attached to the handheld power tool 10 without tools and then takes in the direction of the arrow without exerting a pressing force 48 the rest position shown in Figure 3. Between the hidden ones and therefore dashed housing contours 11a, 25a of the machine housing 11 and the shell element 25 then in the area of the second fastening point 31 Game s. The damping element 40 is thus between the machine housing 11 and shell element 25 interposed, that it is the shell element 25 under tension from the handle 13 away in the direction of the stop 38 on the machine housing 11 urges, which limits the game to a maximum value s becomes. The shell element 25 is, for example, by Opening the two-shell machine housing 11 possible because then the locking hook 33 can be moved laterally past the projection 34 is. But it would also be conceivable in the handle housing provide an opening through which the tongue 32 pushed back in the sense of an unlatching on the projection 34 can be.

In Figur 4 ist die Handwerkzeugmaschine 10 in Arbeitslage gezeigt, bei der auf das Schalenelement 25 vom Bediener eine Andrückkraft 48 aufgebracht wird. Das Dämpfungselement 40 wird dabei maximal um das Spiel s elastisch verformt. Das Schalenelement 25 kommt dann zumindest mit seiner Lasche 36 zur Anlage am Maschinengehäuse 11.In Figure 4, the hand tool 10 is in the working position shown in which on the shell member 25 by the operator Pressing force 48 is applied. The damping element 40 is elastically deformed by a maximum of the game s. The Shell element 25 then comes at least with its tab 36 for contact with the machine housing 11.

Claims (9)

  1. Hand-held machine tool, in particular drilling hammer or impact drilling machine, having a machine housing (11), having a handle (13) which is connected to the machine housing (11), and having a shell element (25) which covers a rear part (24) of the handle (13) and serves as a pressing surface for the operator, the shell element (25) being connected at at least two fastening points (30, 31) to the handle (13) and the machine housing (11), respectively, a first fastening point (30) being provided which ensures a virtually clearance-free connection between the handle (13) and shell element (25) in the pressing direction (21), characterized in that a second fastening point (31) is provided which permits a movement clearance between the handle (13) and shell element (25) in the pressing direction (21), and in that at least one damping element (40) is inserted between the handle (13) and shell element (25), which damping element pushes the shell element (25) away in the direction of a stop (38) on the handle (13) with the handle (13) being pretensioned.
  2. Hand-held machine tool according to Claim 1, characterized in that the shell element (25) is composed of a hard basic body (26) and a soft covering (27) covering the pressing surface.
  3. Hand-held machine tool according to Claim 1 or 2, characterized in that the shell element (25) is arranged in an optionally removable manner on a wall (24) on the rear part of the machine housing (11).
  4. Hand-held machine tool according to one of the preceding claims, characterized in that the first fastening point (30) is formed by a tongue (32) which protrudes on the shell element (25) and on which a latching hook (33) is formed which grips behind a projection (34) on the handle (13) in the installed position of the shell element (25).
  5. Hand-held machine tool according to one of the preceding claims, characterized in that the second fastening point (31) is formed by a tab (36) which protrudes on the shell element (25) and engages in a receiving opening (37) in the machine housing (11).
  6. Hand-held machine tool according to Claim 5, characterized in that the receiving opening (37) and the tab (36) are arranged transversely to the pressing direction, the receiving opening (37) being wider in the pressing direction than the tab (36).
  7. Hand-held machine tool according to one of the preceding claims, characterized in that a supporting surface (41) is formed on the shell element (25), which supporting surface is supported on the damping element (40).
  8. Hand-held machine tool according to one of the preceding claims, characterized in that the machine housing (11) is formed from two housing shells divided in the longitudinal direction of the hand-held machine tool (10), and when the housing shells are opened the damping element (40) can be inserted into a recess (43) in the machine housing (11).
  9. Hand-held machine tool according to one of the preceding claims, characterized in that the shell element (25) has at least one reinforcing rib (45).
EP97122891A 1997-02-03 1997-12-24 Portable handtool Expired - Lifetime EP0856385B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19703746 1997-02-03
DE19703746A DE19703746A1 (en) 1997-02-03 1997-02-03 Hand tool

Publications (2)

Publication Number Publication Date
EP0856385A1 EP0856385A1 (en) 1998-08-05
EP0856385B1 true EP0856385B1 (en) 2000-07-19

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EP97122891A Expired - Lifetime EP0856385B1 (en) 1997-02-03 1997-12-24 Portable handtool

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EP (1) EP0856385B1 (en)
JP (1) JP4125812B2 (en)
DE (2) DE19703746A1 (en)

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JP2596440Y2 (en) * 1993-09-17 1999-06-14 日立工機株式会社 Electric hammer anti-vibration handle
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7077218B2 (en) 2004-05-20 2006-07-18 Black & Decker Inc. Motor housing and assembly process for power tool
US7134510B2 (en) 2004-05-20 2006-11-14 Black & Decker Inc. Motor housing and assembly process for power tool

Also Published As

Publication number Publication date
JPH10217152A (en) 1998-08-18
DE59702050D1 (en) 2000-08-24
JP4125812B2 (en) 2008-07-30
DE19703746A1 (en) 1998-08-06
EP0856385A1 (en) 1998-08-05

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