EP1397228B1 - Meuleuse electrique portative, notamment meuleuse a excentrique a protege-arete - Google Patents

Meuleuse electrique portative, notamment meuleuse a excentrique a protege-arete Download PDF

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Publication number
EP1397228B1
EP1397228B1 EP02740280A EP02740280A EP1397228B1 EP 1397228 B1 EP1397228 B1 EP 1397228B1 EP 02740280 A EP02740280 A EP 02740280A EP 02740280 A EP02740280 A EP 02740280A EP 1397228 B1 EP1397228 B1 EP 1397228B1
Authority
EP
European Patent Office
Prior art keywords
sanding plate
portable electric
sander according
electric sander
strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02740280A
Other languages
German (de)
English (en)
Other versions
EP1397228A1 (fr
Inventor
Doris Reich
Steffen Wuensch
Joao Bergner
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1397228A1 publication Critical patent/EP1397228A1/fr
Application granted granted Critical
Publication of EP1397228B1 publication Critical patent/EP1397228B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/03—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor the tool being driven in a combined movement

Definitions

  • the invention relates to an electric hand grinder, in particular an eccentric grinder, the genus defined in the preamble of claim 1 (see, eg US-A-5,292,352 ).
  • the abrasive carrier is a rubber body attached to the sanding pad, on the underside of which a sanding sheet containing the abrasive is changeable as a wearing part.
  • the rubber body is clipped with an annular groove, which is incorporated at the bottom of a central recess on the upper side facing away from the sanding sheet of the rubber body over the outer edge of the sanding pad.
  • the abrasive carrier In a known orbital sander ( DE 197 08 086 A1 ), the abrasive carrier, there called a grinding plate, plate-shaped and fastened by means of screws on the formed as a vibrating plate sanding pad, where he slightly beyond the outer contour of the oscillating plate.
  • the abrasive carrier consists of a rigid top plate and a bottom plate of soft material.
  • On the underside of the underside plate a grinding grain-containing abrasive sheet is releasably fixed by means of a surface bond.
  • the electric hand grinding machine according to the invention with the features of claim 1 has the advantage that the outer edges of the abrasive material carrier made of soft material during the grinding process, especially in the range of edges and gradations of the workpiece are very well protected by the protrusion of the sanding pad and by the supernatant of circulating guard member on the abrasive carrier at any time of the grinding process can abut the workpiece.
  • the protective member projecting in the grinding plate plane beyond the outer contour of the abrasive carrier can be an integral part of the grinding plate, preferably made of plastic, or attached to the grinding plate as a separate component in the form of a circumferential strip.
  • the protective member engages the abrasive carrier partially on the outer surface, wherein in the one-piece design of the protective member with the sanding pad an encircling at the sanding plate elbow with a circumferential leg over the abrasive carrier receiving bottom of the sanding plate protrudes axially.
  • a circumferential bar provided with an axially extending over the underside of the sanding plate, circumferential ridge.
  • the circumferential overlapping edge on the abrasive carrier that results in both embodiments offers improved protection of the outer contour of the abrasive carrier even in the event of accidental tilting of the electric hand grinding machine.
  • FIG. 1 excerpts shown in longitudinal section eccentric grinder as an exemplary embodiment of a general electric hand grinder, which may for example be designed as orbital sander has a recorded in a housing 10 electric motor 11 which drives a sanding plate 14 mounted on its rotor shaft 12 a sanding pad 14-.
  • the sanding pad 14 is axially fixed on the eccentric 13 by means of a fastening screw 15 screwed in at the front and supported on the eccentric 13 via a ball bearing 16 integrated in the sanding pad 14, while the rotor shaft 12 is supported in the housing 10 by means of a ball bearing 17.
  • the fastening screw 15 is covered by a captive held in the sanding pad 14 cap 19, which can only be removed by destroying.
  • a brake rubber 18 for braking the grinding plate 14 is designed so that it protects the housing 10 at its largest diameter from damage.
  • a fan 20 is mounted on the rotor shaft 12, which sucks air from the underside of the sanding pad 14 via air in the sanding plate 14 existing dust extraction and promotes to a Lucasauslisterstutzen 22 to which usually a dust collecting filter is connected.
  • an abrasive carrier 23 made of soft material, preferably rubber, on the underside of the molded plastic grinding disc 14 is releasably attached.
  • the underside of the sanding pad 14 is provided with a surface adhesive 24, e.g. with a Velcro traction, coated with a surface adhesive layer 25 covering a disc surface of the abrasive carrier 23, e.g. a nonwoven, a surface bond between the sanding pad 14 and abrasive carrier 23 produces.
  • Staubabsauglöcher 26 are incorporated in the same manner as in the sanding pad 14, which are the correct placement of the abrasive carrier 23 on the sanding pad 14 congruent with the Staubabsauglöchern 21 in the sanding pad 14.
  • a grinding grain-containing abrasive sheet 29 is releasably attached.
  • the fastening is again effected by means of a surface bond which, like the surface bonding between the abrasive carrier 23 and the grinding disc 14, is produced by means of a surface adhesive 28 arranged on the abrasive carrier 23 and a counter-surface adhesive layer 29 arranged on the back side of the abrasive sheet 27.
  • the abrasive carrier 23 is provided with an edge protection.
  • This edge protector has a protective member 30 which revolves on the sanding pad 14 and which projects beyond the outer contour of the abrasive substrate 23 in the sanding plate plane and partially overlaps the abrasive substrate 23 on its outer surface 231.
  • Fig. 2 is the section II in Fig. 1 shown enlarged with removed grinding sheet 27.
  • the protective member 30 is an integral part of the grinding plate 14 and is injected with its injection. It has an encircling angle piece 31 which protrudes axially with the aid of a circumferential leg 311 via the underside of the sanding pad 14 receiving the abrasive carrier 23 and thus partially overlaps the outer surface 141 of the sanding pad 14.
  • the protective member 30 is attached to the sanding pad 14, circumferential strip 32 made of an elastic material, preferably made of rubber.
  • the strip 32 is clipped onto the peripheral outer edge 141 of the sanding pad 14 and engages with an axially extending, over the underside of the sanding pad 14 projecting, circumferential web 321 partially the outer surface 231 of the abrasive carrier 23.
  • the determination of the bar 32 on the sanding pad 14 takes place by a tongue and groove connection, for which purpose in the outer edge 141 of the grinding plate 14, a circumferential groove 34 incorporated and on the outer edge 141 facing surface of the bar 32 has a protruding, circumferential Spring 35 is formed, which is pressed positively and non-positively into the groove 34.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (10)

  1. Ponceuse électrique à main, notamment ponceuse ou meuleuse à excentrique comportant un plateau de ponceuse (14) dont la face inférieure comporte un moyen de support d'agent de ponçage (23) en une matière souple,
    caractérisée en ce que
    le plateau (14) porte une protection d'arête périphérique appliquée contre la surface extérieure (231) du support de moyen de ponçage (23), cette protection étant en forme d'organe de protection (30) qui vient en saillie par rapport au contour extérieur du support d'agent de ponçage (23) dans le plan du plateau de ponceuse.
  2. Ponceuse électrique à main, selon la revendication 1,
    caractérisée en ce que
    l'organe protecteur (30) dépasse le support d'agent de ponçage (23) au moins en partie au niveau de sa surface extérieure (231).
  3. Ponceuse électrique à main, selon la revendication 1 ou 2,
    caractérisée en ce que
    l'organe de protection (30) fait partie intégrante du plateau de ponceuse (14).
  4. Ponceuse électrique à main, selon la revendication 2 ou 3,
    caractérisée en ce que
    l'organe de protection (30) est une pièce recourbée (31), formée extérieurement sur le plateau de ponceuse (14), cette pièce étant périphérique et par une branche (311) elle dépasse axialement du côté inférieur du plateau de ponceuse (14) recevant le support d'agent de ponçage (23).
  5. Ponceuse électrique à main, selon la revendication 4,
    caractérisée en ce que
    le plateau de ponceuse (14) est en matière plastique injectée et la pièce d'angle (31) est injectée avec la branche (311) au cours de l'opération d'injection.
  6. Ponceuse électrique à main, selon la revendication 1 ou 2,
    caractérisée en ce que
    l'organe de protection (30) est une baguette périphérique (32) fixée au plateau de ponceuse (14).
  7. Ponceuse électrique à main, selon les revendications 2 et 6,
    caractérisée en ce que
    la baguette (32) comporte une entretoise périphérique (321) s'étendant axialement, dépassant du côté inférieur du plateau de ponceuse (14) recevant le support d'agent de ponçage (23).
  8. Ponceuse électrique à main, selon les revendications 6 ou 7,
    caractérisée en ce que
    la baguette (32) est fabriquée en une matière élastique.
  9. Ponceuse électrique à main, selon l'une des revendications 6 à 8,
    caractérisée en ce que
    la baguette (32) est clipsée sur le bord extérieur (141) du plateau de ponceuse (14).
  10. Ponceuse électrique à main, selon la revendication 9,
    caractérisée en ce que
    la liaison enclipsée entre la baguette (32) et le plateau de ponceuse (14) se fait à l'aide d'une rainure (34) usinée dans le bord extérieur (141) du plateau de ponceuse (14) et d'une languette périphérique (35) formée sur le côté intérieur en regard de la baguette (32) sur la surface extérieure (131), cette languette pénétrant dans la rainure (34) par une liaison par la force et la forme.
EP02740280A 2001-06-01 2002-04-23 Meuleuse electrique portative, notamment meuleuse a excentrique a protege-arete Expired - Lifetime EP1397228B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10126675A DE10126675A1 (de) 2001-06-01 2001-06-01 Elektrohandschleifmaschine, insbesondere Exzenterschleifer
DE10126675 2001-06-01
PCT/DE2002/001475 WO2002098607A1 (fr) 2001-06-01 2002-04-23 Meuleuse electrique portative, notamment meuleuse a excentrique a protege-arete

Publications (2)

Publication Number Publication Date
EP1397228A1 EP1397228A1 (fr) 2004-03-17
EP1397228B1 true EP1397228B1 (fr) 2008-05-28

Family

ID=7686859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02740280A Expired - Lifetime EP1397228B1 (fr) 2001-06-01 2002-04-23 Meuleuse electrique portative, notamment meuleuse a excentrique a protege-arete

Country Status (6)

Country Link
US (1) US6857949B2 (fr)
EP (1) EP1397228B1 (fr)
JP (1) JP2004519352A (fr)
CN (1) CN1231329C (fr)
DE (2) DE10126675A1 (fr)
WO (1) WO2002098607A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20031745A1 (it) * 2003-09-11 2005-03-12 Guido Valentini Platorello con deflettore per la lavorazione di superfici.
DE102006061634A1 (de) * 2006-12-27 2008-07-03 Robert Bosch Gmbh Exzenterschleifer
FI129765B (sv) * 2007-03-21 2022-08-15 Oy Kwh Mirka Ab Kompakt elektrisk slipmaskin
DE202011109293U1 (de) * 2011-12-20 2012-12-05 Kolthoff & Co. Schleifteller
EP2636483A1 (fr) 2012-03-08 2013-09-11 Guido Valentini Machine-outil portative de ponceage, meulage ou polissage d'une pièce
US9102048B2 (en) * 2013-11-29 2015-08-11 Black & Decker Inc. Sander having two-piece fan
DE102017122141A1 (de) * 2017-09-25 2019-03-28 Jakob Löwer Inh. von Schumann GmbH & Co. KG Vorrichtung zur Erzeugung eines undefinierten Finishes auf einer Oberfläche eines metallenen Werkstückes im Durchlaufverfahren
CN108436701A (zh) * 2018-03-26 2018-08-24 冯海松 一种信箱装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB486785A (en) 1936-12-10 1938-06-10 Sterling Products Company Improvement in a rubbing machine
SE362583B (fr) * 1972-03-07 1973-12-17 Electrolux Ab
US4616449A (en) * 1984-08-31 1986-10-14 Miksa Marton Suction housing for vacuum sanding devices
US5018314A (en) 1989-06-08 1991-05-28 Makita Electric Works, Ltd. Sander
DE4125795C1 (fr) 1991-08-03 1993-02-11 C. & E. Fein Gmbh & Co, 7000 Stuttgart, De
DE4226741C2 (de) 1992-08-13 1994-08-04 Atlas Copco Elektrowerkzeuge Handgeführte Schleifmaschine, insbesondere Exzenterschleifmaschine
US5445558A (en) * 1994-07-20 1995-08-29 Hutchins Manufacturing Company Wet sander
DE19708086A1 (de) 1997-02-28 1998-09-03 Elmotec Elektro Motoren Tech Vorrichtung zum Einziehen von Spulen in Nuten von Statorblechpaketen elektrischer Maschinen
DE10012243A1 (de) * 2000-03-14 2001-09-20 Bosch Gmbh Robert Elektrohandschleifmaschine, insbesondere Exzenterschleifer
DE20016263U1 (de) 2000-09-20 2001-10-18 Kolthoff & Co Stützteller für Werkzeuge zur Oberflächenfeinbearbeitung

Also Published As

Publication number Publication date
DE10126675A1 (de) 2002-12-05
CN1231329C (zh) 2005-12-14
DE50212325D1 (de) 2008-07-10
US6857949B2 (en) 2005-02-22
WO2002098607A1 (fr) 2002-12-12
EP1397228A1 (fr) 2004-03-17
CN1462224A (zh) 2003-12-17
US20030148719A1 (en) 2003-08-07
JP2004519352A (ja) 2004-07-02

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