EP0027219B1 - Ponçeuse à bande portative avec cadre de guidage - Google Patents

Ponçeuse à bande portative avec cadre de guidage Download PDF

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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)
English (en)
Other versions
EP0027219A1 (fr
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/de
Publication of EP0027219A1 publication Critical patent/EP0027219A1/fr
Application granted granted Critical
Publication of EP0027219B1 publication Critical patent/EP0027219B1/fr
Expired legal-status Critical Current

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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)

Claims (4)

1. Ponceuse manuelle à bande avec un cadre de guidage (4) logé de façon déplaçable en parallèle sur le carter (1) de la ponceuse manuelle à bande (2) moyennant un levier monté de façon pivotable sur le cadre de guidage (4) et faisant partie d'un dispositif de réglage (33) disposé entre le carter (1) et le cadre de guidage (4) et ce en antagonisme à la surface de ponçage efficace (3) de la bande abrasive (2), caractérisé par le fait qu'un levier de réglage (35) est monté de façon pivotable sur l'extrémité libre de la biellette (23), levier ayant au moins deux surfaces d'appui (42, 43) d'un écart radial différent de son axe (40-40), pour déplacer et maintenir le cadre de guidage (4) en au moins deux positions contre le carter (1 ).
2. Ponceuse manuelle à bande selon revendication 1, caractérisé par le fait qu'une vis des réglage (24) vissable sur la biellette (23) sert d'élément de liaison entre la biellette (23) et le carter (1).
3. Ponceuse manuelle à bande selon revendication 1 ou 2, caractérisé par le fait que des consoles (6, 7) sont montées de façon réglable sur la carcasse (1), avec lesquelles le cadre de guidage (4) est relié de façon déplaçable.
4. Ponceuse manuelle à bande selon revendication 3, caractérisé par le fait que des évidements d'appui (17), inclinés par rapport à la surface de ponçage (3), sont prévus dans les consoles (6, 7) dans lesquels mordent des tourillons de guidage (22) reliés au cadre de guidage (4).
EP80106007A 1979-10-12 1980-10-03 Ponçeuse à bande portative avec cadre de guidage Expired EP0027219B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80106007T ATE6350T1 (de) 1979-10-12 1980-10-03 Handbandschleifmaschine mit einem fuehrungsrahmen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2941353 1979-10-12
DE2941353A DE2941353C2 (de) 1979-10-12 1979-10-12 Handbandschleifmaschine mit einer Abhebeeinrichtung

Publications (2)

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

Family

ID=6083319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106007A Expired EP0027219B1 (fr) 1979-10-12 1980-10-03 Ponçeuse à bande portative avec cadre de guidage

Country Status (4)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29922880U1 (de) * 1999-12-28 2001-05-03 Robert Bosch Gmbh, 70469 Stuttgart Handbandschleifer mit Seitenanschlag
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 (fr) * 1921-04-26 1922-03-29 Machine à polir
US1841787A (en) * 1930-04-28 1932-01-19 Stanley Works Sanding and polishing machine
DE602436C (de) * 1932-06-16 1934-09-08 C F Scheer & Cie G M B H Bandschleifmaschine
DE1277068B (de) * 1965-04-24 1968-09-05 Lutz Kg Eugen Handbandschleifmaschine
DE1964108U (de) * 1967-04-17 1967-07-13 Gotthold Haffner Fa Handbandschleifmaschine.
DE6946309U (de) * 1969-11-29 1970-05-21 Metabowerke Kg Handbandschleifmaschine.

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 (es) 1981-07-16
ATE6350T1 (de) 1984-03-15
DE2941353A1 (de) 1981-04-23
EP0027219A1 (fr) 1981-04-22
DE2941353C2 (de) 1984-08-16
ES8106097A1 (es) 1981-07-16

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