EP0729807A1 - Outil de ponçage dont la surface de travail est équipée d'un moyen de ponçage pour outil de ponçage - Google Patents

Outil de ponçage dont la surface de travail est équipée d'un moyen de ponçage pour outil de ponçage Download PDF

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Publication number
EP0729807A1
EP0729807A1 EP96101579A EP96101579A EP0729807A1 EP 0729807 A1 EP0729807 A1 EP 0729807A1 EP 96101579 A EP96101579 A EP 96101579A EP 96101579 A EP96101579 A EP 96101579A EP 0729807 A1 EP0729807 A1 EP 0729807A1
Authority
EP
European Patent Office
Prior art keywords
abrasive
strip
grinding
grinding tool
abrasive cloth
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
EP96101579A
Other languages
German (de)
English (en)
Other versions
EP0729807B1 (fr
Inventor
Gerd Braasch
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0729807A1 publication Critical patent/EP0729807A1/fr
Application granted granted Critical
Publication of EP0729807B1 publication Critical patent/EP0729807B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/04—Hand tools or other devices for non-rotary grinding, polishing, or stropping resilient; with resiliently-mounted operative surface

Definitions

  • the invention relates to a rotating machine grinding tool, the working surface of which is equipped with an abrasive, in particular a bonded abrasive cloth, and the abrasive provided therefor.
  • Rotating machine grinding tools with which grinding is carried out on an industrial scale, in particular in the furniture industry, can be divided into types of rotating grinding belts and rotating grinding wheels or rollers.
  • the working surfaces of the grinding tools that can be brought into contact with the workpiece to be ground are equipped with abrasive abrasives.
  • Such abrasives consist of a base made of paper, tissue or the like, the surface of which is provided with a layer of abrasive grains. Most of the time, it is about abrasive cloth glued to the work surfaces, which, due to its relatively short service life, must be replaced regularly by loosening the bond and then gluing new abrasive cloth on.
  • the working surfaces of the grinding tools are contoured accordingly for grinding profiles.
  • the glued abrasive cloth is thin enough to be nestled into the contours. It has been shown that during profile grinding, point abutments of the abrasive can result on the profile to be ground, as a result of which undesirable "chatter marks" occur in the surface of the workpiece to be ground.
  • the point support can locally lead to such high pressure that the frictional heat that occurs leads to "burning" of the abrasive. About that In addition, intermediate lacquer sanding with abrasive cloth is not possible because the lacquer layer is sanded through.
  • the invention has for its object to provide a rotating machine grinding tool and an abrasive provided for its equipment, in which the disadvantages described above do not occur.
  • This object is achieved in that an elastic pad is arranged between the work surface and the abrasive cloth.
  • an abrasive tool equipped in this way has the advantage that the relatively soft pad is protected under the abrasive cloth so that pieces are not torn out.
  • the mechanical strength of the abrasive cloth covering the pad prevents instability due to centrifugal forces.
  • a suitable foam with appropriate porosity and elasticity can therefore be selected for the upholstery.
  • a grinding tool for example a rotating grinding wheel, can first be covered with a foam pad on its work surface in preparation for the grinding process. An abrasive cloth is then placed over it, covering the free surface of the foam pad.
  • the pad can be glued to the work surface, whereby the abrasive cloth can in turn be glued to the pad.
  • contoured work surfaces of grinding tools can also be equipped for profile grinding.
  • the abrasive cloth and pad can be in the form of strips that are only cut to the appropriate length.
  • the abrasive cloth strip is particularly advantageously wider than the upholstery strip. This makes it possible to pull the longitudinal edges of the abrasive cloth strip over the longitudinal edges of the padded strip and to attach them to the grinding tool, for example a rotating grinding wheel, by gluing.
  • the pad is completely encapsulated under the abrasive cloth and protected against mechanical influences.
  • An embodiment of the abrasive, with which a grinding tool can be equipped in the manner according to the invention, and for which independent protection is also claimed, provides that a central region of the abrasive cloth strip is coated with a cushioning strip.
  • Appropriate prefabrication can thus be used to provide a one-piece abrasive consisting of upholstery and abrasive cloth, which is in the form of strips or strips. Sections of appropriate length can be cut from the abrasive strip with which the working surfaces of an abrasive tool can be equipped.
  • At least one of the longitudinal edges of the abrasive strip has notches. Both longitudinal edges of the abrasive strip are preferably provided with corresponding notches, which facilitate nestling of the abrasive strip into corresponding contours in the working surface of an abrasive tool.
  • the notches are attached in such a way that they protrude at least partially into the adjacent edge of the cushion strip.
  • the padding strip on the underside of the loop This does not hinder the deformations necessary for nestling into the contours of the work surface.
  • the notches can be simple, more or less acute-angled incisions.
  • the notches are preferably designed as a row of holes running parallel to the respective longitudinal edge of the abrasive, a longitudinal edge incision being made in each hole.
  • the pad strip can be attached to the underside of the abrasive cloth strip using appropriate means, for example adhesives.
  • the undersides of the abrasive cloth strip and the cushion strip arranged on the work surface have a coating of adhesive that can be activated by preferably dissolving.
  • the grinding tool has a tool body 2 with a work surface 3 that can be pressed against a workpiece (not shown here).
  • the work surface 3 is covered with a foam pad 4.
  • Abrasive cloth 5 is placed over the upholstery is wider than the pad 4, so that its longitudinal edges 6 and 7 can be folded down, pulled over the side edges of the pad 4 and can be attached to the flank surfaces 8 and 9 of the tool body 2, for example by gluing.
  • the pad 4 is thus protected under the abrasive cloth 5, which is relatively resistant to mechanical loads.
  • the pad 4 can also be glued to the work surface 3. Furthermore, it is possible to glue the abrasive cloth over the entire surface with the facing top of the cushion 4.
  • Fig. 2 shows a bottom view of an abrasive which is prefabricated in the form of a strip, a portion of which is shown here.
  • the abrasive consists of the abrasive cloth strips 5, the central strip area of which is coated with a strip of cushion 4. Since the abrasive cloth strip 5 is wider than the upholstery strip 4, only the protruding longitudinal edges 6 and 7 are visible here, the longitudinal edges of the upholstery strip 4 being designated 10 and 11.
  • Notches 12 denote notches which are designed as a row of holes running parallel to the respective longitudinal edge 6, 7, a longitudinal edge incision 13 being made in each hole.
  • Fig. 3 shows a sectional view of the abrasive along the line III - III in Fig. 2. Under the abrasive cloth strips 5, the pad 4 is glued. The longitudinal edges of the abrasive cloth strip 5 are again designated 6 and 7, it being clearly visible here that the abrasive cloth 5 is wider than the cushion 4. As in FIG. 2, it can also be seen in FIG. 3 that the notches formed as a row of holes partially extend into the upholstery strip 4.
  • the undersides of the abrasive cloth strip 5 and the arranged cushion strip 4, which come to rest on the work surface 3 (FIG. 1), are provided with a coating 14 made of, for example, adhesives which can be activated by detachment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP96101579A 1995-02-28 1996-02-05 Moyen de ponçage en bande Expired - Lifetime EP0729807B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19506823 1995-02-28
DE19506823A DE19506823A1 (de) 1995-02-28 1995-02-28 Schleifwerkzeug, dessen Arbeitsfläche mit einem Schleifmittel ausgerüstet ist sowie Schleifmittel für ein Schleifwerkzeug

Publications (2)

Publication Number Publication Date
EP0729807A1 true EP0729807A1 (fr) 1996-09-04
EP0729807B1 EP0729807B1 (fr) 2001-04-11

Family

ID=7755163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101579A Expired - Lifetime EP0729807B1 (fr) 1995-02-28 1996-02-05 Moyen de ponçage en bande

Country Status (3)

Country Link
EP (1) EP0729807B1 (fr)
AT (1) ATE200443T1 (fr)
DE (2) DE19506823A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830783A1 (fr) * 2001-10-16 2003-04-18 Sarl Capital Innovation Dispositif pour le poncage ou le polissage comportant un support presentant une surface a adherence renouvelable
WO2005092572A1 (fr) * 2004-03-26 2005-10-06 Tacky Tools Inc. Systeme d'outil, procede d'utilisation et kit destine a un composant d'outil remplaçable

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081120A2 (fr) * 1981-12-08 1983-06-15 Gerd Braasch Procédé pour coller un matériau abrasif sur un corps abrasif
US4502174A (en) * 1982-12-23 1985-03-05 Land Industries Polishing pad
DE3725656A1 (de) * 1987-08-03 1989-02-16 Festo Kg Handschleifgeraet
FR2622136A1 (fr) * 1987-10-27 1989-04-28 Herremans Frank Dispositif pour poncer les surfaces planes ou courbes
DE9309951U1 (de) * 1993-07-05 1993-10-14 Zeitz, Fritz, 66115 Saarbrücken Flexibler, beidseitig benutzbarer Schleifpapierträger, ohne Klammern und mit 100prozentiger Schleifpapierausnutzung
WO1994023899A1 (fr) * 1993-04-16 1994-10-27 William Edmund Carroll Outil
DE9418892U1 (de) * 1994-11-25 1995-01-26 Büsken, Hermann, 46325 Borken Weiches, federndes zusammendrückbares, sich allen unebenen Flächen anpassendes Schleifkissen, sowohl für den Handbetrieb oder als Zusatzteil für jeden Schwingschleifer
US5390449A (en) * 1993-12-06 1995-02-21 Hilton; Harry Rotary sanding apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641719A (en) * 1969-03-12 1972-02-15 Crown Zellerbach Corp Cleaning towel
DE8119429U1 (de) * 1981-07-03 1982-04-08 Jöst, Peter, 6941 Absteinach Schleifkoerperhalter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081120A2 (fr) * 1981-12-08 1983-06-15 Gerd Braasch Procédé pour coller un matériau abrasif sur un corps abrasif
US4502174A (en) * 1982-12-23 1985-03-05 Land Industries Polishing pad
DE3725656A1 (de) * 1987-08-03 1989-02-16 Festo Kg Handschleifgeraet
FR2622136A1 (fr) * 1987-10-27 1989-04-28 Herremans Frank Dispositif pour poncer les surfaces planes ou courbes
WO1994023899A1 (fr) * 1993-04-16 1994-10-27 William Edmund Carroll Outil
DE9309951U1 (de) * 1993-07-05 1993-10-14 Zeitz, Fritz, 66115 Saarbrücken Flexibler, beidseitig benutzbarer Schleifpapierträger, ohne Klammern und mit 100prozentiger Schleifpapierausnutzung
US5390449A (en) * 1993-12-06 1995-02-21 Hilton; Harry Rotary sanding apparatus
DE9418892U1 (de) * 1994-11-25 1995-01-26 Büsken, Hermann, 46325 Borken Weiches, federndes zusammendrückbares, sich allen unebenen Flächen anpassendes Schleifkissen, sowohl für den Handbetrieb oder als Zusatzteil für jeden Schwingschleifer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830783A1 (fr) * 2001-10-16 2003-04-18 Sarl Capital Innovation Dispositif pour le poncage ou le polissage comportant un support presentant une surface a adherence renouvelable
WO2005092572A1 (fr) * 2004-03-26 2005-10-06 Tacky Tools Inc. Systeme d'outil, procede d'utilisation et kit destine a un composant d'outil remplaçable

Also Published As

Publication number Publication date
EP0729807B1 (fr) 2001-04-11
DE59606736D1 (de) 2001-05-17
DE19506823A1 (de) 1996-08-29
ATE200443T1 (de) 2001-04-15

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