EP2363242A1 - Manual operating device - Google Patents

Manual operating device Download PDF

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Publication number
EP2363242A1
EP2363242A1 EP11154439A EP11154439A EP2363242A1 EP 2363242 A1 EP2363242 A1 EP 2363242A1 EP 11154439 A EP11154439 A EP 11154439A EP 11154439 A EP11154439 A EP 11154439A EP 2363242 A1 EP2363242 A1 EP 2363242A1
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EP
European Patent Office
Prior art keywords
rocker
housing
hand tool
guide carriage
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.)
Granted
Application number
EP11154439A
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German (de)
French (fr)
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EP2363242B1 (en
Inventor
Eberhard Berhalter
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Individual
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Individual
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    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
    • B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
    • 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
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/06—Grinders for cutting-off
    • B24B27/08—Grinders for cutting-off being portable

Definitions

  • the invention relates to a hand tool, in particular for cutting components, according to the preamble of claim 1.
  • the cutting disc can be pushed out both from the front of the housing of the hand tool and from an outlet opening which extends laterally and perpendicular to the first outlet opening.
  • This movement possibilities of the milling disk ensures that the milling disk can be moved out of one of the four corner regions of the housing so that the milling disk can penetrate into the masonry in narrow, inaccessible niches or corners, in particular of windows.
  • the housing is designed so stable that although two end faces of the housing for the passage of the milling disc can be opened, but that one of the faces is closed until the mill actually to be pushed out of this and that at the same time the milling disc can be moved out of two adjacent end faces of the housing in order to achieve the largest possible working range for the milling disc.
  • the hand tool 1 in particular window frames, which are held in a masonry by means of metal brackets, are to be dissolved out for rehabilitation purposes, the hand tool 1 consists of a drive motor 2, which is connected via a drive shaft 4 with a cutter disc 3 , The milling disc 3 should penetrate into the masonry and cut the metal brackets to remove the window frame from the masonry.
  • a housing 5 is provided, through which the cutter disk 3 is almost completely encapsulated.
  • a slot 7 is incorporated in a cover plate 6 of the housing 5 facing the drive motor 2.
  • the slot 7 is penetrated by the shaft 4, so that the drive motor 2 and the cutter disk 3 are displaceable in the direction of the first outlet opening 12.
  • a guide carriage 10 is mounted on the cover plate 6, which is initially connected via a retaining pin 14 pivotally connected to the housing 5.
  • an arcuate guide groove 17 is incorporated in the cover plate 6.
  • the slot 7 has a total of two guide sections 8 and 9.
  • the first guide section 8 is aligned with the longitudinal axis 11; the second guide section 9 opens almost perpendicularly from the first guide section 8 in the direction of a second outlet opening 13.
  • the respective guide portions 8 and 9 are perpendicular to the first and second outlet opening 12 or 13th
  • This structural design of the hand-held implement 1 ensures that the drive motor 2, the milling disc 3 and the shaft 4 can be displaced in the direction of the first outlet opening 12, ie along the longitudinal axis 11, and that in this working position the milling disc 3 from the first outlet opening 12 protrudes. If it is now necessary that the cutter disk 3 is also to be moved out of the second outlet opening 13, in order to release hard-to-reach metal clips in corner regions of a masonry, the guide carriage 10 is first pivoted about the retaining bolt 14. This pivoting movement is supported by the arcuate guide groove 17 in the form that through this the possibility of movement of the guide carriage 10 in Direction of the second outlet opening 13 is not obstructed. However, the arcuate guide groove 17 is supported during the axial displacement of the drive motor 2 from the guide carriage 10 so that it is held in the direction of the longitudinal axis 11 by the retaining pin 18 and engaging in the guide groove 17 retaining pin 18 on the cover plate 6.
  • a slot-like opening 15 is incorporated, which is also penetrated by the shaft 4. Consequently, the guide carriage 10 can only be pivoted about the center of the retaining bolt 14 when the shaft 4 is arranged in the transition region between the first and the second section 8 and 9.
  • FIGS. 2a . 2 B . 3a and 3b It can be seen that the second outlet opening 13 by means of a lid 21 which is pivotally supported on the housing 5, as will be explained in more detail, is closed. Accordingly, a power transmission in the region of the second outlet opening 13 is achieved by the cover 21, so that forces which occur in this area are absorbed via the cover 21. The stability of the housing 5 is thus simulated in the region of the second outlet opening 13 a closed housing in this area.
  • the guide carriage 10 is inserted into the second guide portion 9, that is pivoted about the retaining pin 14, the guide carriage 10 acts on a rocker facing this 22 and pushes this area of the rocker 22 in the interior of the cover plate 6, as on the guide carriage 10 a nose 29 is attached, which protrudes in the shape of a hook in the direction of the rocker 22.
  • the lid 21 is fixedly mounted on the side opposite the guide carriage 10 side of the rocker 22, so that upon depression of one side of the rocker 22, the other side of the rocker 22 is raised, so that the lid 21, the second outlet opening 13 releases.
  • the rocker 22 is pivotably mounted by means of a bearing pin 23 in the cover plate 6, so that formed by the bearing pin 23 a rotation axis 24 is, which is perpendicular to the first outlet opening 12.
  • the rocker 22 is laterally offset from the first outlet opening 12 and arranged parallel thereto.
  • FIGS. 3a and 3b the sequence of movement of the rocker 22 and the structural design of the rocker 22 and the guide carriage 10 is shown.
  • the nose 29 is formed, which extends in the direction of the rocker 22 and acts on them.
  • the nose 29 is inserted into a machined into the surface 25 of the rocker 22 notch 27.
  • the inwardly projecting outer wall of the notch 27 is indicated by the reference numeral 28.
  • the outer wall 28 is inclined in the direction of the nose 29 and forms in the starting position with this an undercut in order to achieve the largest possible contact between the outer wall 28 and the nose 29, so that the transmitted forces from the cover 21 via the rocker 22 and the outer wall 28 and the nose 29 are reliably supported, whereby the housing 5 is stabilized in the closed state of the lid 21.
  • an inclined surface 26 is on the surface 25 of the rocker 22, which is aligned from the inside out and immediately laterally offset from the outside of the nose 29 is arranged.
  • FIG. 3b can be seen that the nose 29 acts upon pivoting of the guide carriage 10 about the retaining bolt 14 on the inclined surface 26 and thus exerts a substantially vertical force on one side of the rocker 22, so that the rocker 22 through the nose 29 in the direction the milling disc 3 is pressed, that is pivoted by the bearing pin 23 formed rotational axis 24.
  • This causes on the opposite side of the bearing pin 23 of the rocker 22 to which the lid 21 is mounted, lifting the lid 21, so that between the bottom of the housing 5 and the lid 21, an air gap is formed by the milling disc 3 from the Housing 5 is pushed out.
  • the stroke, the rocker 22 travels when driving over the nose 29 along the inclined surface 26, is dimensioned larger than the Verschwenkweg that the cutter disk 3 in the direction of the cover 21 during pivoting of the guide carriage 10 travels. This ensures that the milling disc 3 is not obstructed in its movement through the cover 21, but that the lid 21 releases a suitably large air gap, through which the milling disc 3 can be moved out of the housing 5.
  • the nose 29 releases the rocker 22, so that it rests along the inclined surface 26, which rests against the nose 29, in the starting position by means of a between the cover plate 6 and the rocker 22
  • Helical compression spring 31 is pushed back.
  • the helical compression spring 31 is advantageously arranged between the notch 27 and the bearing pin 23.
  • FIGS. 4a . 4b and FIG. 5 shows a further exemplary embodiment for mounting the rocker 22.
  • the pivoting of the rocker 22 is achieved in that on the surface of the guide carriage 10, which faces the rocker 22, a pressure plane 34 is incorporated.
  • a pressure plane 34 is incorporated on the surface of the guide carriage 10, which faces the rocker 22, a pressure plane 34 is incorporated.
  • the pressure plane 34 while acting in the direction of the rocker 22 holding force is generated, which acts on the upwardly projecting outer wall 28.
  • the outer wall 28 projects beyond the plane formed by the rocker 22.
  • the transition region between the recess 33 and the pressure plane 34 is inclined, in order to achieve as latch-free as possible depressing the outer wall 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

The device (1) has a drive motor (2), and a cutting disk (3) connected with the motor over a shaft (4). A housing (5) encloses the disk, and an elongated hole (7) is formed in the housing. The hole has guiding-sections, and a guide slide (10) is locked on a covering plate (6) of the housing in a pivotable manner. An outlet opening (13) turned towards one of the sections of the hole is closed by a cover (21) that is coupled to a compensator (22) supported in the plate. A side of the compensator turned away from the cover is passed through the slide and pressed into an inner area of the plate.

Description

Die Erfindung bezieht sich auf ein Handarbeitsgerät, insbesondere zum Durchtrennen von Bauteilen, nach dem Oberbegriff des Patentanspruches 1.The invention relates to a hand tool, in particular for cutting components, according to the preamble of claim 1.

Aus der DE 10 2005 021 212 A1 ist ein solches Handarbeitsgerät zu entnehmen, dessen Frässcheibe sowohl nach vorne aus dem Gehäuse des Handarbeitsgerätes als auch aus einer Austrittsöffnung, die seitlich und senkrecht zu der ersten Austrittsöffnung verläuft, herausgedrückt werden kann. Durch diese Bewegungsmöglichkeiten der Frässcheibe ist gewährleistet, dass die Frässcheibe aus einem der vier Eckbereiche des Gehäuses herausfahrbar ist, so dass in engen, schwer zugänglichen Nischen oder Ecken, insbesondere von Fenstern, die Frässcheibe in das Mauerwerk eindringen kann.From the DE 10 2005 021 212 A1 Such a manual working device can be seen, the cutting disc can be pushed out both from the front of the housing of the hand tool and from an outlet opening which extends laterally and perpendicular to the first outlet opening. This movement possibilities of the milling disk ensures that the milling disk can be moved out of one of the four corner regions of the housing so that the milling disk can penetrate into the masonry in narrow, inaccessible niches or corners, in particular of windows.

Diese Handarbeitsgeräte haben sich in der Praxis zwar bewährt, weisen jedoch den Nachteil auf, da bei jeder Vorwärtsbewegung der Frässcheibe der verschwenkbar gelagerte Deckel mitgeöffnet ist. Dadurch ist zum einen die Stabilität des Gehäuses reduziert, da diese Seite des Gehäuses nicht abgestützt ist, und zum anderen sind zusätzliche Kräfte aufzuwenden, um den Deckel zu bewegen.Although these hand tools have proven themselves in practice, they have the disadvantage that the pivoted lid is also opened during each forward movement of the milling disc. As a result, on the one hand reduces the stability of the housing, since this side of the housing is not supported, and on the other hand are to spend additional forces to move the lid.

Es ist daher Aufgabe der Erfindung, ein Handarbeitsgerät der vorgenannten Gattung bereitzustellen, dessen Gehäuse derart stabil ausgestaltet ist, dass zwar zwei Stirnseiten des Gehäuses für den Durchtritt der Frässcheibe geöffnet werden können, dass jedoch eine der Stirnseiten solange verschlossen ist bis die Frässcheibe tatsächlich aus dieser herausgeschoben werden soll und dass gleichzeitig die Frässcheibe aus zwei benachbarten Stirnseiten des Gehäuses herausfahrbar ist, um einen möglichst groß bemessenen Arbeitsbereich für die Frässcheibe zu erreichen.It is therefore an object of the invention to provide a hand tool of the aforementioned type, the housing is designed so stable that although two end faces of the housing for the passage of the milling disc can be opened, but that one of the faces is closed until the mill actually to be pushed out of this and that at the same time the milling disc can be moved out of two adjacent end faces of the housing in order to achieve the largest possible working range for the milling disc.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teils von Patentanspruch 1 gelöst.This object is achieved by the features of the characterizing part of claim 1.

Weitere vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous developments of the invention will become apparent from the dependent claims.

Dadurch, dass eine der beiden Austrittsöffnungen mittels eines Deckels verschlossen ist, der über eine Wippe sowohl an dem Gehäuse als auch an dem Führungsschlitten anliegt und mit diesen Bauteilen zusammenwirkt, ist erreicht, dass der Deckel die in diesen eingeleitete Kräfte aufnimmt und diese zuverlässig weiterleitet, zumindest dann, wenn der Deckel geschlossen ist. Durch den Deckel ist demnach die Stabilität des Gehäuses in dieser geschlossenen Stellung erhöht. Da der Deckel ausschließlich dann angehoben ist, wenn die Frässcheibe auch aus dieser Stirnseite herausgeschoben ist, benötigt der Benutzer zum einen während der üblichen Betriebsstellung keine zusätzlichen Kräfte, um die Wippe zu betätigen, sondern erst dann, wenn der Deckel zu öffnen ist, und zum anderen ist das Gehäuse bei geschlossenem Deckel durch diesen stabilisiert. Folglich ist der Deckel vorteilhafterweise als Abstützhilfe anzusehen, so dass das Gehäuse nunmehr entlang von drei Stirnseiten abgestützt ist.The fact that one of the two outlet openings is closed by means of a lid, which rests on a rocker on both the housing and on the guide carriage and cooperates with these components, it is achieved that the lid absorbs the forces introduced into these and reliably forwarding them, at least when the lid is closed. By the lid, therefore, the stability of the housing is increased in this closed position. Since the lid is raised only when the cutter disk is pushed out of this end, the user needs on the one hand during the usual operating position no additional forces to operate the rocker, but only when the lid is open, and The housing is stabilized by the latter when the lid is closed. Consequently, the lid is advantageously regarded as a support, so that the housing is now supported along three end faces.

Es ist besonders vorteilhaft, wenn zwischen der Wippe und dem Führungsschlitten eine Hinterschneidung gebildet ist, denn durch diese zusätzliche Anlagefläche wird die Stabilisierung des Deckels in geschlossenem Zustand vergrößert.It is particularly advantageous if an undercut is formed between the rocker and the guide carriage, because this additional contact surface increases the stabilization of the cover in the closed state.

Darüber hinaus ist durch den Verschluss einer der beiden Austrittsöffnungen erreicht, dass der durch den Fräsvorgang anfallende Staub nicht aus einer weiteren Austrittsöffnung für die Frässcheibe herausgeschleudert ist und die Umgebung verschmutzt.In addition, it is achieved by the closure of one of the two outlet openings, that the dust resulting from the milling process is not thrown out of a further outlet opening for the milling disc and pollutes the environment.

In der Zeichnung sind zwei erfindungsgemäße Ausführungsbeispiele dargestellt, die nachfolgend näher erläutert sind. Im Einzelnen zeigt:

Figur 1
ein erstes Ausführungsbeispiel eines Handarbeitsgerätes, mit einem Antriebsmotor, einer trieblich mit diesem verbundenen Welle und mit einer an der Welle angebrachten Frässcheibe, die durch zwei senkrecht zueinander ausgerichteten Austrittsöffnungen herausfahrbar ist, im Schnitt,
Figur 2a
das Handarbeitsgerät gemäß Fig. 1 in Draufsicht und in der Ausgangsstellung,
Figur 2b
das Handarbeitsgerät gemäß Fig. 2a in einem vollständig ausgefahrenen Zustand der Frässcheibe,
Figur 3a
das Handarbeitsgerät gemäß Fig. 2a entlang der Schnittlinie IIIa-IIIa,
Figur 3b
das Handarbeitsgerät gemäß Fig. 2b entlang der Schnittlinie IIIb-IIIb und
Figur 4a
ein zweites Ausführungsbeispiel eines Handarbeitsgerätes, mit einem Antriebsmotor, einer trieblich mit diesem verbundenen Welle und mit einer an der Welle angebrachten Frässcheibe, die durch zwei senkrecht zueinander ausgerichteten Austrittsöffnungen herausfahrbar ist, im Schnitt und im Ausgangszustand und
Figur 4b
das Handarbeitsgemäß Figur 4a in einem vollständig ausgefahrenen Zustand.
In the drawing, two embodiments of the invention are shown, which are explained in more detail below. In detail shows:
FIG. 1
a first embodiment of a hand tool, with a drive motor, a drivingly connected to this shaft and with a mounted on the shaft milling disc, which is moved out by two mutually perpendicular outlet openings, in section,
FIG. 2a
the hand tool according to Fig. 1 in plan view and in the starting position,
FIG. 2b
the hand tool according to Fig. 2a in a fully extended state of the milling disc,
FIG. 3a
the hand tool according to Fig. 2a along the section line IIIa-IIIa,
FIG. 3b
the hand tool according to Fig. 2b along the section line IIIb-IIIb and
FIG. 4a
a second embodiment of a hand tool, with a drive motor, a drive connected to this shaft and with a mounted on the shaft milling disc, which is moved out by two vertically aligned outlet openings, in section and in the initial state and
FIG. 4b
the handicraft according to FIG. 4a in a fully extended state.

Aus den Figuren 1 bis 4 ist jeweils ein Handarbeitsgerät 1 zu entnehmen, durch das insbesondere Fensterrahmen, die in einem Mauerwerk mittels Metallbügel gehalten sind, zu Sanierungszwecken herausgelöst werden sollen, Das Handarbeitsgerät 1 besteht dabei aus einem Antriebsmotor 2, der trieblich über eine Welle 4 mit einer Frässcheibe 3 verbunden ist. Die Frässcheibe 3 soll in das Mauerwerk eindringen und die Metallbügel durchschneiden, um den Fensterrahmen aus dem Mauerwerk herauslösen zu können.From the FIGS. 1 to 4 in each case a hand tool 1 can be seen, in particular window frames, which are held in a masonry by means of metal brackets, are to be dissolved out for rehabilitation purposes, the hand tool 1 consists of a drive motor 2, which is connected via a drive shaft 4 with a cutter disc 3 , The milling disc 3 should penetrate into the masonry and cut the metal brackets to remove the window frame from the masonry.

Zur Kraftübertragung zwischen dem Handarbeitsgerät 1, der Frässcheibe 3 und den einzelnen Metallbügeln ist ein Gehäuse 5 vorgesehen, durch das die Frässcheibe 3 nahezu vollständig gekapselt ist.For power transmission between the hand tool 1, the cutter disk 3 and the individual metal brackets, a housing 5 is provided, through which the cutter disk 3 is almost completely encapsulated.

Um die Frässcheibe 3 nunmehr aus einer ersten Austrittsöffnung 12, die in eine Stirnseite des Gehäuses 5 eingearbeitet ist, herausfahren zu können, ist in einer dem Antriebsmotor 2 zugewandten Abdeckplatte 6 des Gehäuses 5 ein Langloch 7 eingearbeitet. Das Langloch 7 wird von der Welle 4 durchgriffen, so dass der Antriebsmotor 2 und die Frässcheibe 3 in Richtung auf die erste Austrittsöffnung 12 verschiebbar sind. Zur seitlichen Führung des Antriebsmotors 2 ist auf der Abdeckplatte 6 ein Führungsschlitten 10 montiert, der zunächst über einen Haltebolzen 14 verschwenkbar mit dem Gehäuse 5 verbunden ist. Zum anderen ist in die Abdeckplatte 6 eine bogenförmige Führungsnut 17 eingearbeitet.In order to drive out the milling disc 3 now from a first outlet opening 12, which is incorporated in an end face of the housing 5, a slot 7 is incorporated in a cover plate 6 of the housing 5 facing the drive motor 2. The slot 7 is penetrated by the shaft 4, so that the drive motor 2 and the cutter disk 3 are displaceable in the direction of the first outlet opening 12. For lateral guidance of the drive motor 2, a guide carriage 10 is mounted on the cover plate 6, which is initially connected via a retaining pin 14 pivotally connected to the housing 5. On the other hand, an arcuate guide groove 17 is incorporated in the cover plate 6.

Das Langloch 7 weist insgesamt zwei Führungsabschnitte 8 und 9 auf. Der erste Führungsabschnitt 8 verläuft fluchtend zu der Längsachse 11; der zweite Führungsabschnitt 9 mündet nahezu senkrecht von dem ersten Führungsabschnitt 8 in Richtung einer zweiten Austrittsöffnung 13 ab. Somit verlaufen die jeweiligen Führungsabschnitte 8 bzw. 9 senkrecht zu der ersten bzw. zweiten Austrittsöffnung 12 oder 13.The slot 7 has a total of two guide sections 8 and 9. The first guide section 8 is aligned with the longitudinal axis 11; the second guide section 9 opens almost perpendicularly from the first guide section 8 in the direction of a second outlet opening 13. Thus, the respective guide portions 8 and 9 are perpendicular to the first and second outlet opening 12 or 13th

Durch diese konstruktive Ausgestaltung des Handarbeitsgerätes 1 ist gewährleistet, dass der Antriebsmotor 2, die Frässcheibe 3 und die Welle 4 in Richtung der ersten Austrittsöffnung 12, also entlang der Längsachse 11 verschoben werden können, und dass in dieser Arbeitsposition die Frässcheibe 3 aus der ersten Austrittsöffnung 12 hervorragt. Wenn es nunmehr erforderlich ist, dass die Frässcheibe 3 auch aus der zweiten Austrittsöffnung 13 herauszufahren ist, um beispielsweise in Eckbereichen eines Mauerwerkes schwer zugängliche Metallclipse in diesem zu lösen, wird zunächst der Führungsschlitten 10 um den Haltebolzen 14 verschwenkt. Diese Verschwenkbewegung wird durch die bogenförmige Führungsnut 17 in der Form unterstützt, dass durch diese die Bewegungsmöglichkeit des Führungsschlittens 10 in Richtung der zweiten Austrittsöffnung 13 nicht behindert ist. Die bogenförmige Führungsnut 17 stützt jedoch bei der axialen Verschiebung des Antriebsmotors 2 den Führungsschlitten 10 ab, so dass dieser in Richtung der Längsachse 11 durch den Haltebolzen 18 und den in die Führungsnut 17 eingreifenden Haltebolzen 18 an der Abdeckplatte 6 gehalten ist.This structural design of the hand-held implement 1 ensures that the drive motor 2, the milling disc 3 and the shaft 4 can be displaced in the direction of the first outlet opening 12, ie along the longitudinal axis 11, and that in this working position the milling disc 3 from the first outlet opening 12 protrudes. If it is now necessary that the cutter disk 3 is also to be moved out of the second outlet opening 13, in order to release hard-to-reach metal clips in corner regions of a masonry, the guide carriage 10 is first pivoted about the retaining bolt 14. This pivoting movement is supported by the arcuate guide groove 17 in the form that through this the possibility of movement of the guide carriage 10 in Direction of the second outlet opening 13 is not obstructed. However, the arcuate guide groove 17 is supported during the axial displacement of the drive motor 2 from the guide carriage 10 so that it is held in the direction of the longitudinal axis 11 by the retaining pin 18 and engaging in the guide groove 17 retaining pin 18 on the cover plate 6.

In den Führungsschlitten 10 ist eine schlitzartige Öffnung 15 eingearbeitet, die ebenso von der Welle 4 durchgriffen ist. Folglich kann der Führungsschlitten 10 erst dann um den Mittelpunkt des Haltebolzens 14 verschwenkt werden, wenn die Welle 4 im Übergangsbereich zwischen dem ersten und dem zweiten Abschnitt 8 und 9 angeordnet ist.In the guide carriage 10, a slot-like opening 15 is incorporated, which is also penetrated by the shaft 4. Consequently, the guide carriage 10 can only be pivoted about the center of the retaining bolt 14 when the shaft 4 is arranged in the transition region between the first and the second section 8 and 9.

Insbesondere den Figuren 2a, 2b, 3a und 3b ist zu entnehmen, dass die zweite Austrittsöffnung 13 mittels eines Deckels 21, der verschwenkbar an dem Gehäuse 5, wie dies nachfolgend noch näher erläutert wird, abgestützt ist, verschlossen ist. Durch den Deckel 21 ist demnach eine Kraftübertragung im Bereich der zweiten Austrittsöffnung 13 erreicht, so dass Kräfte, die in diesem Bereich auftreten, über den Deckel 21 aufgenommen werden. Die Stabilität des Gehäuses 5 ist somit im Bereich der zweiten Austrittsöffnung 13 einem in diesem Bereich geschlossenen Gehäuse nachgebildet.In particular the FIGS. 2a . 2 B . 3a and 3b It can be seen that the second outlet opening 13 by means of a lid 21 which is pivotally supported on the housing 5, as will be explained in more detail, is closed. Accordingly, a power transmission in the region of the second outlet opening 13 is achieved by the cover 21, so that forces which occur in this area are absorbed via the cover 21. The stability of the housing 5 is thus simulated in the region of the second outlet opening 13 a closed housing in this area.

Wird anschließend der Führungsschlitten 10 in den zweiten Führungs-Abschnitt 9 eingeschoben, also um den Haltebolzen 14 verschwenkt, wirkt der Führungsschlitten 10 auf eine diesem zugewandte Wippe 22 ein und drückt diesen Bereich der Wippe 22 in das Innere der Abdeckplatte 6, da an dem Führungsschlitten 10 eine Nase 29 angebracht ist, die hakenförmig in Richtung der Wippe 22 absteht. Der Deckel 21 ist an der dem Führungsschlitten 10 gegenüberliegenden Seite der Wippe 22 fest angebracht, so dass beim Herunterdrücken der einen Seite der Wippe 22 die andere Seite der Wippe 22 angehoben ist, so dass der Deckel 21 die zweite Austrittsöffnung 13 freigibt.Then, the guide carriage 10 is inserted into the second guide portion 9, that is pivoted about the retaining pin 14, the guide carriage 10 acts on a rocker facing this 22 and pushes this area of the rocker 22 in the interior of the cover plate 6, as on the guide carriage 10 a nose 29 is attached, which protrudes in the shape of a hook in the direction of the rocker 22. The lid 21 is fixedly mounted on the side opposite the guide carriage 10 side of the rocker 22, so that upon depression of one side of the rocker 22, the other side of the rocker 22 is raised, so that the lid 21, the second outlet opening 13 releases.

Die Wippe 22 ist dabei mittels eines Lagerbolzens 23 in der Abdeckplatte 6 verschwenkbar gelagert, so dass durch den Lagerbolzen 23 eine Drehachse 24 gebildet ist, die senkrecht zu der ersten Austrittsöffnung 12 verläuft. Die Wippe 22 ist seitlich versetzt zu der ersten Austrittsöffnung 12 und parallel zu dieser angeordnet.The rocker 22 is pivotably mounted by means of a bearing pin 23 in the cover plate 6, so that formed by the bearing pin 23 a rotation axis 24 is, which is perpendicular to the first outlet opening 12. The rocker 22 is laterally offset from the first outlet opening 12 and arranged parallel thereto.

In den Figuren 3a und 3b ist der Bewegungsablauf der Wippe 22 sowie die konstruktive Ausgestaltung der Wippe 22 und des Führungsschlittens 10 gezeigt. An dem Führungsschlitten 10 ist dabei die nach innen geneigt verlaufende, also in Richtung des Handarbeitsgerätes 1 abstehende Nase 29 angeformt, die in Richtung der Wippe 22 verläuft und auf diese einwirkt. In dem in Figur 3a gezeigten Ausgangszustand der Wippe 22 ist die Nase 29 in eine in die Oberfläche 25 der Wippe 22 eingearbeitete Kerbe 27 eingesetzt. Die nach innen ragende Außenwand der Kerbe 27 ist mit der Bezugsziffer 28 gekennzeichnet. Die Außenwand 28 ist in Richtung der Nase 29 geneigt und bildet in der Ausgangsposition mit dieser eine Hinterschneidung, um eine möglichst großflächige Anlage zwischen der Außenwand 28 und der Nase 29 zu erreichen, so dass die von dem Deckel 21 übertragenen Kräfte über die Wippe 22 und der Außenwand 28 bzw. der Nase 29 zuverlässig abgestützt sind, wodurch das Gehäuse 5 in geschlossenem Zustand des Deckels 21 stabilisiert ist.In the FIGS. 3a and 3b the sequence of movement of the rocker 22 and the structural design of the rocker 22 and the guide carriage 10 is shown. On the guide carriage 10 while the inwardly inclined extending, so projecting in the direction of the hand tool 1 nose 29 is formed, which extends in the direction of the rocker 22 and acts on them. In the in FIG. 3a shown initial state of the rocker 22, the nose 29 is inserted into a machined into the surface 25 of the rocker 22 notch 27. The inwardly projecting outer wall of the notch 27 is indicated by the reference numeral 28. The outer wall 28 is inclined in the direction of the nose 29 and forms in the starting position with this an undercut in order to achieve the largest possible contact between the outer wall 28 and the nose 29, so that the transmitted forces from the cover 21 via the rocker 22 and the outer wall 28 and the nose 29 are reliably supported, whereby the housing 5 is stabilized in the closed state of the lid 21.

Zwischen der Kerbe 27 und dem Lagerbolzen 23 ist auf der Oberfläche 25 der Wippe 22 eine schräge Fläche 26 angearbeitet, die von innen nach außen ausgerichtet ist und unmittelbar seitlich versetzt zu der Außenseite der Nase 29 angeordnet ist.Between the notch 27 and the bearing pin 23, an inclined surface 26 is on the surface 25 of the rocker 22, which is aligned from the inside out and immediately laterally offset from the outside of the nose 29 is arranged.

Aus Figur 3b kann entnommen werden, dass die Nase 29 beim Verschwenken des Führungsschlittens 10 um den Haltebolzen 14 auf die schräge Fläche 26 einwirkt und somit eine im Wesentlichen vertikal verlaufende Kraft auf eine Seite der Wippe 22 ausübt, so dass die Wippe 22 durch die Nase 29 in Richtung der Frässcheibe 3 gedrückt ist, also von dem Lagerbolzen 23 gebildeten Drehachse 24 verschwenkt ist. Dies bewirkt auf der dem Lagerbolzen 23 gegenüberliegenden Seite der Wippe 22, an der der Deckel 21 angebracht ist, ein Anheben des Deckels 21, so dass zwischen der Unterseite des Gehäuses 5 und dem Deckel 21 ein Luftspalt entsteht, durch den die Frässcheibe 3 aus dem Gehäuse 5 herausgedrückt ist.Out FIG. 3b can be seen that the nose 29 acts upon pivoting of the guide carriage 10 about the retaining bolt 14 on the inclined surface 26 and thus exerts a substantially vertical force on one side of the rocker 22, so that the rocker 22 through the nose 29 in the direction the milling disc 3 is pressed, that is pivoted by the bearing pin 23 formed rotational axis 24. This causes on the opposite side of the bearing pin 23 of the rocker 22 to which the lid 21 is mounted, lifting the lid 21, so that between the bottom of the housing 5 and the lid 21, an air gap is formed by the milling disc 3 from the Housing 5 is pushed out.

Der Hubweg, den die Wippe 22 beim Überfahren der Nase 29 entlang der schrägen Fläche 26 zurücklegt, ist dabei größer bemessen als der Verschwenkweg, den die Frässcheibe 3 in Richtung auf den Deckel 21 beim Verschwenken des Führungsschlittens 10 zurücklegt. Dadurch ist sichergestellt, dass die Frässcheibe 3 nicht in ihrer Bewegung durch den Deckel 21 behindert ist, sondern dass der Deckel 21 einen geeignet großen Luftspalt freigibt, durch den die Frässcheibe 3 aus dem Gehäuse 5 herausfahrbar ist.The stroke, the rocker 22 travels when driving over the nose 29 along the inclined surface 26, is dimensioned larger than the Verschwenkweg that the cutter disk 3 in the direction of the cover 21 during pivoting of the guide carriage 10 travels. This ensures that the milling disc 3 is not obstructed in its movement through the cover 21, but that the lid 21 releases a suitably large air gap, through which the milling disc 3 can be moved out of the housing 5.

Wird der Führungsschlitten 10 aus dem zweiten Abschnitt 9 zurückbewegt, gibt die Nase 29 die Wippe 22 frei, so dass diese entlang der schrägen Fläche 26, die an der Nase 29 anliegt, in die Ausgangsposition mittels einer zwischen der Abdeckplatte 6 und der Wippe 22 angeordneten Schraubendruckfeder 31 zurückgedrückt ist. Die Schraubendruckfeder 31 ist vorteilhafterweise zwischen der Kerbe 27 und dem Lagerbolzen 23 angeordnet.If the guide carriage 10 is moved back out of the second section 9, the nose 29 releases the rocker 22, so that it rests along the inclined surface 26, which rests against the nose 29, in the starting position by means of a between the cover plate 6 and the rocker 22 Helical compression spring 31 is pushed back. The helical compression spring 31 is advantageously arranged between the notch 27 and the bearing pin 23.

In den Figuren 4a, 4b und 5 ist ein weiteres Ausführungsbeispiel zur Lagerung der Wippe 22 abgebildet. Das Verschwenken der Wippe 22 wird dadurch erreicht, dass auf der Oberfläche des Führungsschlittens 10, die der Wippe 22 zugewandt ist, eine Druckebene 34 eingearbeitet ist. Durch die Druckebene 34 wird dabei eine in Richtung der Wippe 22 wirkende Haltekraft erzeugt, die auf die nach oben abstehende Außenwand 28 einwirkt. Die Außenwand 28 steht über die von der Wippe 22 gebildeten Ebene über. Im Ausgangszustand taucht die Außenwand 28 in eine Aussparung 33 ein, so dass diese die Verschwenkbewegung des Führungsschlittens 10 nicht behindert. Der Übergangsbereich zwischen der Aussparung 33 und der Druckebene 34 verläuft geneigt, um ein möglichst verrastfreies Herunterdrücken der Außenwand 28 zu erreichen.In the FIGS. 4a . 4b and FIG. 5 shows a further exemplary embodiment for mounting the rocker 22. The pivoting of the rocker 22 is achieved in that on the surface of the guide carriage 10, which faces the rocker 22, a pressure plane 34 is incorporated. By the pressure plane 34 while acting in the direction of the rocker 22 holding force is generated, which acts on the upwardly projecting outer wall 28. The outer wall 28 projects beyond the plane formed by the rocker 22. In the initial state, the outer wall 28 dips into a recess 33, so that it does not hinder the pivoting movement of the guide carriage 10. The transition region between the recess 33 and the pressure plane 34 is inclined, in order to achieve as latch-free as possible depressing the outer wall 28.

Sollte die Wippe 22 in die Ausgangslage nicht selbstständig zurückschnappen, wird diese durch die Nase 29 hochgezogen, der zwischen der Nase 29 und der Außenwand eine geneigte Auflagefläche 32 vorgesehen ist, so dass die Nase 29 beim Zurückfahren die Außenwand 28 und folglich die Wippe 22 nach oben zieht.If the rocker 22 does not snap back into the starting position, this is pulled up by the nose 29, which is provided between the nose 29 and the outer wall an inclined support surface 32, so that the nose 29 when returning the outer wall 28 and consequently the rocker 22 after pulls up.

Claims (9)

Handarbeitsgerät (1), insbesondere zum Durchtrennen von Bauteilen, bestehend aus einem Antriebsmotor (2), aus einer Frässcheibe (3), die mit dem Antriebsmotor (2) über eine Welle (4) trieblich verbunden ist, aus einem die Frässcheibe (3) umschließenden Gehäuse (5), in dem in der dem Antriebsmotor (2) zugewanden Abdeckplatte (6) ein aus zwei schlitzartigen Führungs-Abschnitten (8, 9) zusammengesetztes Langloch (7) eingearbeitet ist, das von der Welle (4) durchgriffen ist und dessen beide Abschnitte (8,9) jeweils etwa senkrecht in Richtung zu einer in dem Gehäuse (5) vorgesehenen Austrittsöffnung (12, 13) verlaufen, aus einem Führungsschlitten (10), der auf der Abdeckplatte (6) des Gehäuses (5) verschwenkbar um einen Haltebolzen (14) arretiert ist und der eine schlitzartige Öffnung (15) aufweist, die fluchtend zu dem ersten Abschnitt (8) des Langlochs (7) ausgerichtet und durch die die Welle (4) hindurch geführt ist, wobei der Antriebsmotor (2) an dem Führungsschlitten (10) verschieblich in Richtung der dem ersten Abschnitt (8) zugeordneten Austrittsöffnung (12) gehalten ist,
dadurch gekennzeichnet,
dass die dem zweiten Abschnitt (9) des Langlochs (7) zugewandte Austrittsöffnung (13) mittels eines Deckels (21) verschlossen ist, dass der Deckel (21) mindestens an einer in der Abdeckplatte (6) verschwenkbar gelagerten Wippe (22) gekoppelt ist und dass durch den Führungsschlitten (10) eine dem Deckel (21) abgewandten Seite der Wippe (22) überfahrbar und diese in das Innere der Abdeckplatte (6) eindrückbar ist.Hand tool (1), in particular for cutting components, consisting of a drive motor (2), from a milling disc (3), which is drivingly connected to the drive motor (2) via a shaft (4), from a milling disc (3) enclosing housing (5), in which in the drive motor (2) zugewanden cover plate (6) consists of two slot-like guide sections (8, 9) composed elongated hole (7) which is penetrated by the shaft (4) and whose two sections (8, 9) extend approximately perpendicularly in the direction of an outlet opening (12, 13) provided in the housing (5), from a guide carriage (10) pivotable on the cover plate (6) of the housing (5) is locked about a retaining bolt (14) and which has a slot-like opening (15) which is aligned with the first portion (8) of the slot (7) and through which the shaft (4) is guided, wherein the drive motor (2 ) on the guide carriage (10) slidably held in the direction of the first section (8) associated with the outlet opening (12),
characterized,
in that the outlet opening (13) facing the second section (9) of the oblong hole (7) is closed by means of a cover (21), that the cover (21) is supported on at least one rocker mounted pivotably in the cover plate (6) (22) is coupled and that by the guide carriage (10) facing away from the cover (21) side of the rocker (22) can be moved over and this in the interior of the cover plate (6) can be pressed. Handarbeitsgerät nach Anspruch 1,
dadurch gekennzeichnet,
dass die Wippe (22) parallel und seitlich versetzt zu der dem ersten Abschnitt (8) des Langlochs (7) zugeordneten Austrittsöffnung (12) verläuft.Hand tool according to claim 1,
characterized,
that the rocker (22) parallel to and laterally offset from the said first portion (8) of the slotted hole associated with (7) the outlet opening (12). Handarbeitsgerät nach Anspruch 2,
dadurch gekennzeichnet,
dass etwa fluchtend oder seitlich versetzt zu der Längsachse der Wippe (22) auf der gegenüberliegenden Seite des Führungsschlitzes (10) eine bogenförmige Führungsnut (16) in die Abdeckplatte (6) des Gehäuses (5) eingearbeitet ist, in die ein an dem Führungsschlitten (10) angebrachter Haltebolzen (18) eingreift, dass die Führungsnut (16) in den ersten Abschnitt (8) des Langloches (17) mündet und dass der Beginn der Führungsnut (16) gemeinsam mit dem Mittelpunkt des Haltebolzens (14) eine Achse bildet, die parallel oder geneigt zu der Längsachse (7) des Führungsschlittens (10) verläuft.Hand tool according to claim 2,
characterized,
that approximately flush or laterally offset from the longitudinal axis of the rocker (22) on the opposite side of the guide slot (10) an arcuate guide groove (16) in the cover plate (6) of the housing (5) is incorporated, in which a on the guide carriage ( 10) attached retaining pin (18) engages that the guide groove (16) in the first portion (8) of the elongated hole (17) opens and that the beginning of the guide groove (16) together with the center of the retaining bolt (14) forms an axis, which runs parallel or inclined to the longitudinal axis (7) of the guide carriage (10). Handarbeitsgerät nach einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
dass auf der der Wippe (22) zugewandten Oberfläche (25) des Führungsschlittens (10) eine, vorzugsweise nach innen geneigt verlaufende, Nase (29) angeformt ist, die im geschlossenen Zustand des Deckels (21) in eine in die Wippe (22) eingearbeitete Kerbe (27) eingreift und die mit der Außenwand (28) der Kerbe (27) eine Hinterschneidung zur an dem Führungsschlitten (10) geneigten Anlagefläche (32) bildet.Hand tool according to one of the preceding claims,
characterized,
that on the rocker (22) facing surface (25) of the guide carriage (10) is formed, preferably inwardly inclined, nose (29) formed in the closed state of the lid (21) in one in the Rocker (22) engaging notch (27) engages and with the outer wall (28) of the notch (27) forms an undercut to the guide carriage (10) inclined contact surface (32). Handarbeitsgerät nach einem der vorgenannten Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass die Oberfläche (25) der Wippe (22), die dem Führungsschlitten (10) zugewandt ist, bereichsweise als von innen nach außen geneigte und in Richtung des Deckels (21) verlaufende schräge Fläche (26) ausgestaltet ist und dass an dem Führungsschlitten (10) eine der schrägen Fläche (26) zugewandte Nase (29) angeformt ist, durch die die Wippe (22) in das Innere des Gehäuses (5) eindrückbar ist.Hand tool according to one of the preceding claims 1 to 3,
characterized,
in that the surface (25) of the rocker (22) which faces the guide carriage (10) is designed in regions as an inclined surface (26) inclined from the inside to the outside and in the direction of the cover (21) and that on the guide carriage ( 10) one of the oblique surface (26) facing nose (29) is integrally formed, through which the rocker (22) in the interior of the housing (5) can be pressed. Handarbeitsgerät nach einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
dass an der Wippe (22) eine Schraubendruckfeder (31) zwischen dem Führungsschklitten (10) und der Aufhängung (23) der Wippe (22) vorgesehen ist, durch die diese in die Ausgangsposition bewegbar ist.Hand tool according to one of the preceding claims,
characterized,
that a helical compression spring (31) between the Führungsschklitten (10) and the suspension (23) of the rocker (22) is provided on the rocker (22) through which it is movable into the starting position. Handarbeitsgerät nach einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
dass die Querschnittsform des Deckels (21) bogen- oder kreisförmig oder schräg abgelenkt ausgebildet ist.Hand tool according to one of the preceding claims,
characterized,
that the cross-sectional shape of the lid (21) is arcuate or circular or obliquely deflected. Handarbeitsgerät nach einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
dass das von dem Hebelarm der Wippe (22) und der Steigung der schrägen Fläche (26) gebildete Übersetzungsverhältnis derart bemessen ist, dass in jeder Betriebsstellung der Frässcheibe (3) zwischen dieser und dem Deckel (21) ein Luftspalt vorhanden ist.Hand tool according to one of the preceding claims,
characterized,
that of the lever arm of the rocker (22) and the slope of the oblique surface (26) ratio formed is dimensioned so that in each operating position of the cutter disk (3) between this and the cover (21) an air gap is present. Handarbeitsgerät nach einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
dass an dem Deckel (21) ein weiterer Hebelarm (30) angebracht ist, der parallel zu der Wippe (22) verläuft und der in der Auflageplatte (6) des Gehäuses (5) verschwenkbar gelagert ist.Hand tool according to one of the preceding claims,
characterized,
in that on the lid (21) a further lever arm (30) is mounted, which runs parallel to the rocker (22) and which is pivotably mounted in the support plate (6) of the housing (5).
EP20110154439 2010-03-01 2011-02-15 Manual operating device Active EP2363242B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010009778A DE102010009778A1 (en) 2010-03-01 2010-03-01 Hand tool

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EP2363242A1 true EP2363242A1 (en) 2011-09-07
EP2363242B1 EP2363242B1 (en) 2013-05-01

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DE (1) DE102010009778A1 (en)
ES (1) ES2423664T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016109049A1 (en) 2016-05-17 2017-11-23 Eberhard Berhalter Hand tool machine device for a movable mounting of a shaft in a guideway
CN106826486B (en) * 2017-02-14 2018-09-04 新疆吉瑞祥科技股份有限公司 A kind of hand-held Furniture panel side end burr processing unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298221A2 (en) * 1987-07-10 1989-01-11 wolfcraft GmbH Apparatus for milling grooves
DE102005019388A1 (en) * 2005-04-28 2006-11-02 Robert Bosch Gmbh Hand-held machine tool has turbine encompassing a rotatable turbine wheel, which is used as a drive unit while means for evacuating accidentally entrant particle, are arranged between turbine wheel and turbine housing
DE102005021212A1 (en) 2005-05-07 2006-11-09 Eberhard Berhalter Hand-held angle grinder has a grinding disc that is free to lower and retract through a limited range

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005002939U1 (en) * 2005-02-18 2005-06-23 Tischer, Karsten Radio controlled model off-road car, in a scale of 1:6 to 1:4, has a wholly enclosed gearbox and chain transmission to front and rear differentials and with dampened steering

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298221A2 (en) * 1987-07-10 1989-01-11 wolfcraft GmbH Apparatus for milling grooves
DE102005019388A1 (en) * 2005-04-28 2006-11-02 Robert Bosch Gmbh Hand-held machine tool has turbine encompassing a rotatable turbine wheel, which is used as a drive unit while means for evacuating accidentally entrant particle, are arranged between turbine wheel and turbine housing
DE102005021212A1 (en) 2005-05-07 2006-11-09 Eberhard Berhalter Hand-held angle grinder has a grinding disc that is free to lower and retract through a limited range

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ES2423664T3 (en) 2013-09-23
DE102010009778A1 (en) 2011-09-01

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