EP0027219B1 - Hand belt-grinding machine with a guiding frame - Google Patents

Hand belt-grinding machine with a guiding frame Download PDF

Info

Publication number
EP0027219B1
EP0027219B1 EP80106007A EP80106007A EP0027219B1 EP 0027219 B1 EP0027219 B1 EP 0027219B1 EP 80106007 A EP80106007 A EP 80106007A EP 80106007 A EP80106007 A EP 80106007A EP 0027219 B1 EP0027219 B1 EP 0027219B1
Authority
EP
European Patent Office
Prior art keywords
housing
guide frame
belt sander
portable belt
sanding
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
Application number
EP80106007A
Other languages
German (de)
French (fr)
Other versions
EP0027219A1 (en
Inventor
Rainer Kuhn
Herbert André
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.)
Karl M Reich Maschinenfabrik GmbH
Original Assignee
Karl M Reich Maschinenfabrik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6083319&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0027219(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Karl M Reich Maschinenfabrik GmbH filed Critical Karl M Reich Maschinenfabrik GmbH
Priority to AT80106007T priority Critical patent/ATE6350T1/en
Publication of EP0027219A1 publication Critical patent/EP0027219A1/en
Application granted granted Critical
Publication of EP0027219B1 publication Critical patent/EP0027219B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • B24B23/06—Portable grinding machines, e.g. hand-guided; Accessories therefor with abrasive belts, e.g. with endless travelling belts; Accessories therefor

Definitions

  • the present invention relates to a hand-held belt grinder with a guide frame according to the preamble of claim 1.
  • Such a hand belt grinding machine is known from DE-U-1 964 108, the housing being mounted with pins in oblique slots in brackets which are connected to the guide frame.
  • a spring is provided between the housing and the guide frame, which presses it into a lifting position, so that the grinding belt is located behind the contact surface of the guide frame.
  • the housing is pressed against the action of this spring in the direction of the workpiece, the grinding depth is therefore dependent on the pressing force of the operator.
  • the housing is pressed unevenly against the workpiece, that is, tilted. This results in an unclean sanding pattern, thin veneers can be sanded through and damaged.
  • the guide frame is connected to the housing by means of parallel leaf springs. In the normal position, the grinding belt protrudes over the contact surface.
  • a lifting device is provided between the housing and the guide frame, with which the housing can be raised against the guide frame. When this lifting device is released, the housing and thus the sanding belt return to the original sanding position.
  • the hand-held belt sander is to be placed on a surface during short work interruptions or at the end of sanding work, this can only be done without damaging the sanding belt or surface if the sanding belt has come to a complete standstill.
  • the operator is undesirably forced to hold the hand belt grinder until the grinding belt comes to a standstill, which leads to a delay in the further work process.
  • the object of the present invention is therefore to create a hand-held belt grinder with a guide frame which can be shifted as quickly as possible into a working position that recedes against the grinding surface and a lifting position that is superior to it and can be locked there.
  • the guide frame can be brought quickly into a lifting position projecting beyond the grinding surface in order to set the machine down, so that the machine can be put down safely.
  • the adjusting device is connected to a coupling member which is screw-mounted as an adjusting screw in the adjusting rocker.
  • this adjusting screw is connected to brackets which are adjustably attached to the housing. This allows the bearing surface of the guide frame to be adjusted once to the effective grinding surface of the grinding belt during assembly. This exact setting of the guide frame is necessary in order to achieve a perfectly clean sanding pattern.
  • a grinding belt 2 with an effective grinding surface 3 is mounted in a housing 1 and can be driven by a motor, not shown, via a gear.
  • the housing 1 is surrounded by a guide frame 4, which has a support surface 5.
  • brackets 6 and 7 are provided, which are fastened to the housing 1 in an adjustable manner (FIGS. 4 and 5).
  • the housing 1 with elongated holes 8 reach through the screws 9, which are mounted in holes 10 of console 6 and are provided with nuts 11.
  • the brackets 6 and 7 have eyes 12 and 13 into which adjusting screws 14 are screwed. These touch with their end face 15 a contact surface 16 of the housing 1.
  • the brackets 6 and 7 are provided with outwardly directed storage pockets 17 which run essentially at an angle to the support surface 5 of the guide frame and open downwards.
  • the guide frame 4 is provided with bearing blocks 18, on which the pin holder 19 is fastened with screws 20 in the direction of the housing 1.
  • the pin holders 19 are provided with elongated holes 21.
  • Guide pins 22 connected to the pin holders 19 engage in the bearing pockets 17, with a spherical and conical design of the guide pin 22 a point contact between the guide pin 22 and the bearing pocket 17 arises. This ensures accurate and safe guidance of the housing 1 on the guide frame 4.
  • an adjusting screw 24 is screwably mounted on a narrow side of the guide frame 4 in an adjusting rocker 23.
  • the free end: of adjusting screw 24 is provided with a pin 25 which extends through a bore 26 of a coupling axis 27 and is secured by a nut 28.
  • the two coupling pins 29 of the coupling axis 27 engage in upwardly open pockets 30 of the bracket 6 and are secured by a form spring 31 which is fastened to the bracket 6 with screws 32.
  • an adjustment device 33 is provided which is pivotably mounted on an axle 34 fastened to the guide frame 4. (See also FIG. 3) It consists of the adjusting rocker 23 and the eccentric lever 35 which is pivotably mounted at the free end of the adjusting rocker 23.
  • the adjusting rocker 23 is pivotably mounted on the axis 34 with the two brackets 36, one of which is also on this axis 34 mounted double-leg torsion spring 37 acts on the adjusting rocker 23 in a counterclockwise direction.
  • An axle body 39 with an axis 40-40 is rotatably mounted in bores 38.
  • Axle body 39 is provided at both ends with collar pins 41 on which the eccentric lever 35 is pivotally mounted. He is provided in the region of the collar pin 41 with contact surfaces 42 and 43, each having different distances from the axis 40-40 and of which in the example shown, the contact surface 42 is supported under the action of the torsion spring 37 against the contact blocks 44 of the guide frame 4. If the eccentric lever 35 is pivoted from the position shown in solid lines in FIG. 1 to the position shown in dash-dotted lines, then the contact surface 43 lies against the contact block 44, whereby the axis 40-40 and thus the adjusting rocker 23 is pivoted away from the contact block 44.
  • Housing 1 is thereby shifted upwards via adjusting screw 24 and brackets 6 and 7 with their oblique pockets 17 in the guide pin 22 of the guide frame 4 and thus assumes a lifting position which is superior to the grinding surface 3 and in which the hand-held belt grinding machine can be placed despite the grinding belt 2 running.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

1. A portable belt sander having a guide frame (4) supported, for parallel displacement relative to the effective sanding surface (3) of the sanding belt (2), on the housing (1) of the portable belt sander via a pivotal lever of adjusting means (33) arranged between the housing (1) and the guide frame (4), characterized in that the free end of an adjusting link (23) carries a pivotal excentric lever (35) having at least two abutment faces (42, 43) extending at different radial spacings form its axis to enable the guide frame (4) to be displaced into, and held in, at least two positions relative to the housing (1).

Description

Die vorliegende Erfindung betrifft eine Handbandschleifmaschine mit einem Führungsrahmen gemäß Oberbegriff von Anspruch 1.The present invention relates to a hand-held belt grinder with a guide frame according to the preamble of claim 1.

Aus der DE-U-1 964 108 ist eine solche Handbandschleifmaschine bekannt, wobei das Gehäuse mit Zapfen in schrägen Schlitzen von Konsolen gelagert ist, die mit dem Führungsrahmen verbunden sind. Zwischen Gehäuse und Führungsrahmen ist eine Feder vorgesehen, die diesen in eine Abhebestellung drückt, so daß sich das Schleifband hinter der Auflagefläche des Führungsrahmens befindet. Beim Schleifen wird das Gehäuse gegen Wirkung dieser Feder in Richtung Werkstück gedrückt, die Schleiftiefe ist also von der Andrückkraft des Bedienungsmannes abhängig. Außerdem besteht die Gefahr, daß das Gehäuse ungleichmäßig gegen das Werkstück gedrückt wird, also verkantet. Er ergibt sich daraus ein unsauberes Schleifbild, dünne Furniere können durchgeschliffen und beschädigt werden.Such a hand belt grinding machine is known from DE-U-1 964 108, the housing being mounted with pins in oblique slots in brackets which are connected to the guide frame. A spring is provided between the housing and the guide frame, which presses it into a lifting position, so that the grinding belt is located behind the contact surface of the guide frame. When grinding, the housing is pressed against the action of this spring in the direction of the workpiece, the grinding depth is therefore dependent on the pressing force of the operator. There is also the risk that the housing is pressed unevenly against the workpiece, that is, tilted. This results in an unclean sanding pattern, thin veneers can be sanded through and damaged.

Bei einer weiteren Handbandschleifmaschine gemäß DE-U-6 946 309 ist der Führungsrahmen über parallele Blattfedern mit dem Gehäuse verbunden. In Normalstellung überragt dabei das Schleifband die Auflagefläche. Zum feinfühligen Anschleifen ist zwischen Gehäuse und Führungsrahmen eine Abhebevorrichtung vorgesehen, mit der das Gehäuse gegen den Führungsrahmen angehoben werden kann. Beim Loslassen dieser Abhebevorrichtung geht das Gehäuse und damit das Schleifband wieder in die ursprüngliche Schleifstellung zurück.In another hand belt grinding machine according to DE-U-6 946 309, the guide frame is connected to the housing by means of parallel leaf springs. In the normal position, the grinding belt protrudes over the contact surface. For sensitive grinding, a lifting device is provided between the housing and the guide frame, with which the housing can be raised against the guide frame. When this lifting device is released, the housing and thus the sanding belt return to the original sanding position.

Soll nun die Handbandschleifmaschine bei kurzer Arbeitsunterbrechungen oder bei Beendigung der Schleifarbeiten auf eine Unterlage abgesetzt werden, dann ist dies ohne Beschädigung von Schleifband oder Unterlage nur möglich, wenn das Schleifband völlig zum Stillstand gekommen ist. Der Bedienungsmann ist also in unerwünschter Weise gezwungen, die Handbandschleifmaschine bis zum Stillstand des Schleifbandes festzuhalten, was zu einer Verzögerung des weiteren Arbeitsablaufes führt.If the hand-held belt sander is to be placed on a surface during short work interruptions or at the end of sanding work, this can only be done without damaging the sanding belt or surface if the sanding belt has come to a complete standstill. The operator is undesirably forced to hold the hand belt grinder until the grinding belt comes to a standstill, which leads to a delay in the further work process.

Aufgabe der vorliegenden Erfindung ist daher die Schaffung einer Handbandschleifmaschine mit einem Führungsrahmen, der möglichst schnell in eine jeweils gegen die Schleiffläche zurücktretende Arbeitsstellung und eine diese überragende Abhebestellung verschiebbar und dort feststellbar ist.The object of the present invention is therefore to create a hand-held belt grinder with a guide frame which can be shifted as quickly as possible into a working position that recedes against the grinding surface and a lifting position that is superior to it and can be locked there.

. Diese Aufgabe wird erfindungsgemäß gelöst durch die Merkmale im Kennzeichen des Anspruchs 1. . This object is achieved according to the invention by the features in the characterizing part of claim 1.

Mit dieser erfindungsgemäßen Verstelleinrichtung läßt sich zum Absetzen der Maschine der Führungsrahmen auf einfache Weise rasch in eine die Schleiffläche überragende Abhebestellung bringen, so daß die Maschine unbedenklich abgesetzt werden kann. Andererseits ist es ebenso rasch möglich, die gewünschte Arbeitsstellung wieder zu erzielen, bei der die zuvor eingestellte Spanabnahme beim Schleifen wieder gewährleistet ist.With this adjusting device according to the invention, the guide frame can be brought quickly into a lifting position projecting beyond the grinding surface in order to set the machine down, so that the machine can be put down safely. On the other hand, it is just as quickly possible to achieve the desired working position again, in which the previously set chip removal during grinding is guaranteed again.

Auch ist es möglich, die Maschinen in Abhebestellung zu einer kurzen Arbeitsunterbrechung im Leerlauf weiterlaufen zu lassen.It is also possible to let the machines continue to run in idle position for a short work break.

Bei einer vorteilhaften Ausgestaltung der Erfindung ist die Verstelleinrichtung mit einem Kopplungsglied verbunden, das als Einstellschraube in der Verstellschwinge schraubbar gelagert ist. Diese Einstellschraube ist erfindungsgemäß mit Konsolen verbunden, die am Gehäuse einstellbar befestigt sind. Damit läßt sich die Auflagefläche des Führungsrahmens bei der Montage einmalig der wirksamen Schleiffläche des Schleifbandes anpassen. Diese genaue Einstellung des Führungsrahmens ist notwendig, um ein einwandfrei sauberes Schleifbild zu erzielen.In an advantageous embodiment of the invention, the adjusting device is connected to a coupling member which is screw-mounted as an adjusting screw in the adjusting rocker. According to the invention, this adjusting screw is connected to brackets which are adjustably attached to the housing. This allows the bearing surface of the guide frame to be adjusted once to the effective grinding surface of the grinding belt during assembly. This exact setting of the guide frame is necessary in order to achieve a perfectly clean sanding pattern.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Further advantageous embodiments of the invention are characterized in the subclaims.

Im folgenden ist ein Ausführungsbeispiel der Erfindung unter Bezugnahme auf die Zeichnungen näher beschrieben.An exemplary embodiment of the invention is described in more detail below with reference to the drawings.

Es zeigt

  • Fig. 1 Seitenansicht der erfindungsgemäßen Handbandschleifmaschine.
  • Fig. 2 Handbandschleifmaschine von oben.
  • Fig. 3 Teilschnitt nach Linie 111-111 in Fig. 1.
  • Fig. 4Teilschnitt nach Linie IV-IV in Fig. 2.
  • Fig. 5 Teilschnitt nach Linie V-V in Fig. 2.
It shows
  • Fig. 1 side view of the hand belt grinder according to the invention.
  • Fig. 2 hand belt grinder from above.
  • 3 partial section along line 111-111 in Fig. 1st
  • 4 partial section along line IV-IV in Fig. 2nd
  • 5 partial section along line VV in Fig. 2nd

Bei der in Fig. 1 dargestellten Handbandschleifmaschine ist in einem Gehäuse 1 ein Schleifband 2 mit einer wirksamen Schleiffläche 3 gelagert, das durch einen nicht dargestellten Motor über ein Getriebe antreibbar ist.In the hand-held belt grinding machine shown in FIG. 1, a grinding belt 2 with an effective grinding surface 3 is mounted in a housing 1 and can be driven by a motor, not shown, via a gear.

Wie auch Fig. 2 zeigt, ist das Gehäuse 1 von einem Führungsrahmen 4 umgeben, der eine Auflagefläche 5 aufweist.As also shown in FIG. 2, the housing 1 is surrounded by a guide frame 4, which has a support surface 5.

Zur Befestigung des Führungsrahmens 4 am Gehäuse 1 sind Konsolen 6 und 7 vorgesehen, die am Gehäuse 1 einstellbar befestigt sind (Fig. 4 und 5). Dazu ist z. B. das Gehäuse 1 mit Langlöchern 8 versehen, durch die Schrauben 9 hindurchgreifen, die in Bohrungen 10 von Konsole 6 gelagert und mit Muttern 11 versehen sind. Die Konsolen 6 und 7 weisen Augen 12 und 13 auf, in die Einstellschrauben 14 eingeschraubt sind. Diese berühren mit ihrer Stirnfläche 15 eine Anlagefläche 16 von Gehäuse 1.To fasten the guide frame 4 to the housing 1, brackets 6 and 7 are provided, which are fastened to the housing 1 in an adjustable manner (FIGS. 4 and 5). For this purpose, e.g. B. the housing 1 with elongated holes 8, reach through the screws 9, which are mounted in holes 10 of console 6 and are provided with nuts 11. The brackets 6 and 7 have eyes 12 and 13 into which adjusting screws 14 are screwed. These touch with their end face 15 a contact surface 16 of the housing 1.

Die Konsolen 6 und 7 sind mit nach außen gerichteten Lagertaschen 17 versehen, die im wesentlichen schräg zur Auflagefläche 5 des Führungsrahmens verlaufen und sich nach unten öffnen. Der Führungsrahmen 4 ist mit Lagerbökken 18 versehen, auf denen Zapfenhalter 19 mit Schrauben 20 in Richtung Gehäuse 1 verschiebbar befestigt sind. Die Zapfenhalter 19 sind dazu mit Langlöchern 21 versehen. Mit den Zapfenhaltern 19 verbundene Führungszapfen 22 greifen in die Lagertaschen 17 ein, wobei durch eine ballige und konische Ausführung der Führungszapfen 22 eine punktförmige Berührung zwischen Führungszapfen 22 und Lagertasche 17 entsteht. Dadurch ist eine genaue und sichere Führung von Gehäuse 1 am Führungsrahmen 4 gewährleistet.The brackets 6 and 7 are provided with outwardly directed storage pockets 17 which run essentially at an angle to the support surface 5 of the guide frame and open downwards. The guide frame 4 is provided with bearing blocks 18, on which the pin holder 19 is fastened with screws 20 in the direction of the housing 1. For this purpose, the pin holders 19 are provided with elongated holes 21. Guide pins 22 connected to the pin holders 19 engage in the bearing pockets 17, with a spherical and conical design of the guide pin 22 a point contact between the guide pin 22 and the bearing pocket 17 arises. This ensures accurate and safe guidance of the housing 1 on the guide frame 4.

Zur Verstellung der wirksamen Schleiffläche 3 zur Auflagefläche 5 ist an einer Schmalseite des Führungsrahmens 4 in einer Verstellschwinge 23 eine Einstellschraube 24 schraubbar gelagert. Das freie Ende: von Einstellschraube 24 ist mit einem Zapfen 25 versehen, der sich durch eine Bohrung 26 einer Kupplungsachse 27 erstreckt und durch eine Mutter 28 gesichert ist. Die beiden Kupplungszapfen 29 der Kupplungsachse 27 greifen in nach oben offene Taschen 30 der Konsole 6 ein und sind durch eine Formfeder 31 gesichert, die an der Konsole 6 mit Schrauben 32 befestigt ist.In order to adjust the effective grinding surface 3 to the contact surface 5, an adjusting screw 24 is screwably mounted on a narrow side of the guide frame 4 in an adjusting rocker 23. The free end: of adjusting screw 24 is provided with a pin 25 which extends through a bore 26 of a coupling axis 27 and is secured by a nut 28. The two coupling pins 29 of the coupling axis 27 engage in upwardly open pockets 30 of the bracket 6 and are secured by a form spring 31 which is fastened to the bracket 6 with screws 32.

Zur Schnellverstellung zwischen Gehäuse 1 und Führungsrahmen 4 ist eine Verstelleinrichtung 33 vorgesehen, die auf einer'am Führungsrahmen 4 befestigten Achse 34 schwenkbar gelagert ist. (Siehe auch Fig. 3.) Sie besteht aus der Verstellschwinge 23 und dem am freien Ende der Verstellschwinge 23 schwenkbar gelagerten Exzenterhebel 35. Die Verstellschwinge 23 ist mit den beiden Laschen 36 schwenkbar auf der Achse 34 gelagert, wobei eine ebenfalls auf dieser Achse 34 gelagerte doppelschenklige Drehfeder 37 die Verstellschwinge 23 im Gegenuhrzeigersinn beaufschlagt.For quick adjustment between the housing 1 and the guide frame 4, an adjustment device 33 is provided which is pivotably mounted on an axle 34 fastened to the guide frame 4. (See also FIG. 3) It consists of the adjusting rocker 23 and the eccentric lever 35 which is pivotably mounted at the free end of the adjusting rocker 23. The adjusting rocker 23 is pivotably mounted on the axis 34 with the two brackets 36, one of which is also on this axis 34 mounted double-leg torsion spring 37 acts on the adjusting rocker 23 in a counterclockwise direction.

In Bohrungen 38 ist ein Achskörper 39 mit Achse 40-40 drehbar gelagert. Achskörper 39 ist an seinen beiden Enden mit Bundzapfen 41 versehen, auf denen der Exzenterhebel 35 schwenkbar gelagert ist. Er ist dabei im Bereich der Bundzapfen 41 mit Anlageflächen 42 und 43 versehen, die jeweils verschiedene Abstände von der Achse 40-40 aufweisen und von denen im dargestellten Beispiel sich die Anlagefläche 42 unter Wirkung der Drehfeder 37 gegen die Anlageböcke 44 von Führungsrahmen 4 abstützt. Wird somit der Exzenterhebel 35 von der in Fig. 1 ausgezogen gezeichneten Stellung in die strichpunktiert gezeichnete Stellung verschwenkt, dann legt sich Anlagefläche 43 gegen Anlagebock 44 wodurch die Achse 40-40 und damit die Verstellschwinge 23 vom Anlagebock 44 weggeschwenkt wird. Gehäuse 1 wird dadurch über Einstellschraube 24 und Konsolen 6 und 7 mit ihren schrägen Taschen 17 in den Führungszapfen 22 des Führungsrahmens 4 nach oben verschoben und nimmt damit eine die Schleiffläche 3 überragende Abhebestellung ein, in der die Handbandschleifmaschine trotz laufendem Schleifband 2 abgesetzt werden kann.An axle body 39 with an axis 40-40 is rotatably mounted in bores 38. Axle body 39 is provided at both ends with collar pins 41 on which the eccentric lever 35 is pivotally mounted. He is provided in the region of the collar pin 41 with contact surfaces 42 and 43, each having different distances from the axis 40-40 and of which in the example shown, the contact surface 42 is supported under the action of the torsion spring 37 against the contact blocks 44 of the guide frame 4. If the eccentric lever 35 is pivoted from the position shown in solid lines in FIG. 1 to the position shown in dash-dotted lines, then the contact surface 43 lies against the contact block 44, whereby the axis 40-40 and thus the adjusting rocker 23 is pivoted away from the contact block 44. Housing 1 is thereby shifted upwards via adjusting screw 24 and brackets 6 and 7 with their oblique pockets 17 in the guide pin 22 of the guide frame 4 and thus assumes a lifting position which is superior to the grinding surface 3 and in which the hand-held belt grinding machine can be placed despite the grinding belt 2 running.

Soll die eigentliche Handbandschleifmaschine vom Führungsrahmen 4 abgenommen werden, dann braucht lediglich Kupplungsachse 27 aus den Taschen 30 ausgeklinkt zu werden, wonach das Gehäuse 1 nach oben aus den Führungszapfen 22 herausgefahren werden kann.If the actual hand-held belt grinder is to be removed from the guide frame 4, then only the coupling axis 27 has to be released from the pockets 30, after which the housing 1 can be moved upwards out of the guide pin 22.

Claims (4)

1. A portable belt sander having a guide frame (4) supported, for parallel displacement relative to the effective sanding surface (3) of the sanding belt (2), on the housing (1) of the portable belt sander via a pivotal lever of adjusting means (33) arranged between the housing (1) and the guide frame (4), characterized in that the free end of an adjusting link (23) carries a pivotal excentric lever (35) having at least two abutment faces (42, 43) extending at different radial spacings form its axis to enable the guide frame (4) to be displaced into, and held in, at least two positions relative to the housing (1
2. A portable belt sander in accordance with claim 1, characterized in that a setscrew (24) operably connected with the adjusting link (23) serves as coupling element between the adjusting link (23) and the housing (1).
3. A portable belt sander in accordance with claim 1 or 2, characterized in that the housing (1) carries, in adjustable relationship, brackets (6, 7) to which the guide frame (4) is connected for displacement relative thereto.
4. A portable belt sander in accordance with claim 3, characterized in that the brackets (6, 7) are provided with bearing pockets (17) extending at an angle relative to the sanding surface (3), which bearing pockets are engaged by guide pins (22) connected with the guide frame (4).
EP80106007A 1979-10-12 1980-10-03 Hand belt-grinding machine with a guiding frame Expired EP0027219B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80106007T ATE6350T1 (en) 1979-10-12 1980-10-03 HAND BELT SANDER WITH SINGLE GUIDE FRAME.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2941353 1979-10-12
DE2941353A DE2941353C2 (en) 1979-10-12 1979-10-12 Hand belt grinder with a lifting device

Publications (2)

Publication Number Publication Date
EP0027219A1 EP0027219A1 (en) 1981-04-22
EP0027219B1 true EP0027219B1 (en) 1984-02-22

Family

ID=6083319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106007A Expired EP0027219B1 (en) 1979-10-12 1980-10-03 Hand belt-grinding machine with a guiding frame

Country Status (4)

Country Link
EP (1) EP0027219B1 (en)
AT (1) ATE6350T1 (en)
DE (1) DE2941353C2 (en)
ES (1) ES8106097A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29922880U1 (en) * 1999-12-28 2001-05-03 Bosch Gmbh Robert Hand belt sander with side stop
US7207875B2 (en) 2003-10-14 2007-04-24 Black & Decker Inc. Sanding frame and stand for a belt sander

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US814787A (en) * 1905-09-08 1906-03-13 Joseph Lehnbeuter Polishing-machine.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR534616A (en) * 1921-04-26 1922-03-29 Polishing machine
US1841787A (en) * 1930-04-28 1932-01-19 Stanley Works Sanding and polishing machine
DE602436C (en) * 1932-06-16 1934-09-08 C F Scheer & Cie G M B H Belt grinder
DE1277068B (en) * 1965-04-24 1968-09-05 Lutz Kg Eugen Hand belt grinder
DE1964108U (en) * 1967-04-17 1967-07-13 Gotthold Haffner Fa HAND BELT SANDING MACHINE.
DE6946309U (en) * 1969-11-29 1970-05-21 Metabowerke Kg HAND BELT SANDING MACHINE.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US814787A (en) * 1905-09-08 1906-03-13 Joseph Lehnbeuter Polishing-machine.

Also Published As

Publication number Publication date
ES495844A0 (en) 1981-07-16
EP0027219A1 (en) 1981-04-22
DE2941353C2 (en) 1984-08-16
DE2941353A1 (en) 1981-04-23
ES8106097A1 (en) 1981-07-16
ATE6350T1 (en) 1984-03-15

Similar Documents

Publication Publication Date Title
EP0106057A2 (en) Surface grinding machine for punching tools
DE69913494T2 (en) GRINDING A CYLINDER MOWER BLADE
EP0027219B1 (en) Hand belt-grinding machine with a guiding frame
DE2652025A1 (en) GRINDING AND POLISHING MACHINE FOR TOOLS
DE2613448C3 (en) Machine for grinding the longitudinal edges of turbine blades
DE2920197C2 (en) Milling device for chamfering the edges of workpieces
DE10155700A1 (en) Electric chain saw sharpening machine
DE3841829C2 (en)
EP0036506B1 (en) Device for removing residual material left after cutting off workpieces
DE4313799C2 (en) Bell knife sharpening machine for leather
DE4432974B4 (en) Hand-guided, electric belt sander
DE3105100C2 (en) Machine for grinding a groove in the peripheral surface of an out-of-round spectacle lens
DE592639C (en) Speed control for grinding machines depending on the grinding wheel diameter
DE822793C (en) Multiple grinding machine
DE839610C (en) Machine for processing flat surfaces, especially for grinding and polishing grooves on flat glass
DE69206005T2 (en) Wooden floor surface grinding machine.
DE525367C (en) Machine for sharpening the edges of shoe soles
DE3728867C2 (en)
DE826708C (en) Precision grinding machine with a workpiece spindle and at least one grinding spindle with the same axis height that works together with it
DE803401C (en) Device for holding workpieces, in particular planing chairs, on grinding machines
DE933731C (en) Device for sharpening zigzag scissors
DE102013004201A1 (en) Portable machine for machining corners
DE3838517A1 (en) Dressing device
DE2249307A1 (en) DEVICE FOR SANDING THE EDGES OF WOODEN PARTS
DE1938153A1 (en) Spectacle lens grinding machine

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT NL SE

17P Request for examination filed

Effective date: 19811008

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI NL SE

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

Ref country code: SE

Effective date: 19840222

REF Corresponds to:

Ref document number: 6350

Country of ref document: AT

Date of ref document: 19840315

Kind code of ref document: T

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19840930

Year of fee payment: 5

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: EUGEN LUTZ GMBH & CO. MASCHINENFABRIK

Effective date: 19841120

NLR1 Nl: opposition has been filed with the epo

Opponent name: EUGEN LUTZ GMBH & CO. MASCHINENFABRIK.

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19860524

NLR2 Nl: decision of opposition
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19871031

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

Ref country code: NL

Payment date: 19871031

Year of fee payment: 8

BERE Be: lapsed

Owner name: KARL M. REICH MASCHINENFABRIK G.M.B.H.

Effective date: 19871031

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

Ref country code: NL

Effective date: 19900501

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940927

Year of fee payment: 15

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

Ref country code: AT

Payment date: 19941013

Year of fee payment: 15

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

Ref country code: FR

Payment date: 19941025

Year of fee payment: 15

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

Ref country code: CH

Payment date: 19941227

Year of fee payment: 15

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

Ref country code: GB

Effective date: 19951003

Ref country code: AT

Effective date: 19951003

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

Ref country code: LI

Effective date: 19951031

Ref country code: CH

Effective date: 19951031

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

Effective date: 19951003

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Effective date: 19960628

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST