EP1321231B1 - Schleiferät mit einer Absaughaube - Google Patents
Schleiferät mit einer Absaughaube Download PDFInfo
- Publication number
- EP1321231B1 EP1321231B1 EP02406076A EP02406076A EP1321231B1 EP 1321231 B1 EP1321231 B1 EP 1321231B1 EP 02406076 A EP02406076 A EP 02406076A EP 02406076 A EP02406076 A EP 02406076A EP 1321231 B1 EP1321231 B1 EP 1321231B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- tool
- suction
- drive
- holder
- 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
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
- 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
Definitions
- the invention relates to a grinding device with a housing and a motor-driven, a bearing unit passing through, with its free end the housing superior, Drive spindle, according to the preamble of claim 1.
- a sander is e.g. known from DE 1189 405.
- Grinders of the above type are used for processing a surface by means of a motor-driven drive spindle at the free end of a tool holder for releasably fixing a tool, in particular a grinding wheel, provided is.
- a suction hood which is the free end surrounds the drive spindle and an open towards the tool holder suction space having.
- DE 195 03 201 A1 discloses a grinding device with a housing and a motor-driven, a bearing unit passing through and with its free end the housing superior Drive spindle known.
- a tool holder provided for releasably fixing a tool.
- closes to the housing a suction hood surrounding the free end of the drive spindle, the one for tool holder has open suction.
- the storage unit is through a seal protected against dust entry.
- a disadvantage of the known solution is that the sealing of the bearing unit on the one hand economically very complex and on the other hand, an intrusion of dust in the storage unit can not be prevented.
- a grinding device with a housing is known in which an electric motor is arranged.
- the mounted in the housing motor shaft of the electric motor is connected to the shaft a grinding plate rotatably connected.
- Above the sanding pad is on the motor shaft Dust blower wheel is provided, which is coupled to a motor ventilation fan.
- the Blower chambers of the dust blower wheel and the motor ventilation blower wheel are included separated by an annular plate from each other, which extends radially outward around the shaft extends around with the blower wheels.
- the present invention is based on the object, an economically producible To provide grinder that has a powerful dust extraction and penetration prevented from dust in the storage unit
- the object is achieved by the features of claim 1, wherein the drive space on the Dirt chamber with the vacuum source is connectable.
- the suction space has an intermediate wall, the dirt-sensitive parts, such as For example, the storage unit, separated from the dust, is a structurally simple Means, the partition, prevents contamination of these parts.
- the drive space has at least one inlet opening which is open toward the outside, to ensure an optimal supply of air from the environment of the grinder.
- the inlet opening has an air filter, for example Filter dust from the air from the outside.
- a game is provided to prevent seizure of the drive spindle. Furthermore, the game ensures an air flow between the drive space and the Dirt chamber and thus prevents penetration of dust through the passage opening because in this area the, by the pressure difference between the drive space and the Dirt room, flow rate is very high.
- the figure shows a part of an inventive grinding device in longitudinal section with a Housing 1, a partially illustrated motor 2, a symbolically shown Angular gear 3 and one, driven by the motor 2, drive spindle 4.
- the drive spindle 4 passes through a bearing unit 5 and projects beyond the housing with its free end 7 1.
- a tool holder 8 for releasable Setting a tool 9, in particular a sanding plate, provided.
- suction hood 11 To the Housing 1 closes a, the free end 7 of the drive spindle 4 surrounding, suction hood 11, which has a tool receptacle 8 open towards the suction chamber 12.
- the suction chamber 12 has between the tool holder 8 and the bearing unit 5 a Partition wall 13, which opens the suction chamber 12 in a tool holder 8 back trained dirt chamber 14 and in one, against the tool holder 8 thereto subsequent, drive space 15 divided. Furthermore, the intermediate wall 13 has a passage opening 17 for carrying out the drive spindle 4. Between the inner contour of the Passage opening 17 and the outer contour of the drive spindle 4 a game s provided.
- the dirt chamber 14 has a suction opening 18, for example, by a suction 19 is connectable to a vacuum source, not shown.
- the drive room 15 has an inlet opening 16, which is designed to be open to the outside Air duct from the outside to form the drive space 15.
- the dirt chamber 14 vacuumed by the vacuum source has a lower pressure p 1 than the pressure p 2 prevailing in the drive chamber 15.
- This pressure difference produces an air flow a between the drive chamber 15 and the dirt chamber 14.
- the air flow occurs in particular between the inner contour of the passage opening 17 and the outer contour of the drive spindle 4, which preferably has a high flow velocity in this area due to the small-sized clearance.
- an air flow b is generated from outside into the drive space 15.
- Dust or other particles produced by the grinding process are sucked out by the vacuum p 1 prevailing in the dirt chamber 14 and sucked out of the dirt chamber 14 through the suction opening 18 by the pressure p u generated by means of the vacuum source.
- the air flow a prevents the penetration of dust or the like into the drive space 15.
- the tool holder 8 has a fixed to the drive spindle 4 flange 20 and a screwed by means of a threaded connection 21 to the drive spindle 4 nut 22, wherein the tool 9 in the clamped state between the flange 20 and the Nut 22 is fixed to the drive spindle 4 non-positively and / or positively.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Carbon And Carbon Compounds (AREA)
- Disintegrating Or Milling (AREA)
Description
Claims (4)
- Schleifgerät mit einem Gehäuse (1) und einer motorisch angetriebenen, eine Lagereinheit (5) durchsetzende, mit ihrem freien Ende (7) das Gehäuse (1) überragende, Antriebsspindel (4), wobei am freien Ende (7) der Antriebsspindel (4) eine Werkzeugaufnahme (8) zum lösbaren Festlegen eines Werkzeuges (9) vorgesehen ist und an das Gehäuse (1) eine das freie Ende (7) der Antriebsspindel (4) umgebende Absaughaube (11) anschliesst, die einen zur Werkzeugaufnahme (8) hin offenen Absaugraum (12) aufweist, wobei der Absaugraum (12) zwischen der Werkzeugaufnahme (8) und der Lagereinheit (5) eine Zwischenwand (13) aufweist, die den Absaugraum (12) in einen zur Werkzeugaufnahme (8) hin offen ausgebildeten Schmutzraum (14) und in einen, entgegen der Werkzeugaufnahme (8) daran anschliessenden Antriebsraum (15) unterteilt und die Zwischenwand (13) eine Durchtrittsöffnung (17) zur Durchführung der Antriebsspindel (4) aufweist, wobei der Schmutzraum (14) zumindest eine Absaugöffnung (18) aufweist, die mit einer Unterdruckquelle verbindbar ist, dadurch gekennzeichnet, dass der Antriebsraum (15) über den Schmutzraum (14) mit der Unterdruckquelle verbindbar ist.
- Schleifgerät nach Anspruch 1, dadurch gekennzeichnet, dass der Antriebsraum (15) zumindest eine Eintrittsöffnung (16) aufweist, die nach aussen hin offen ist.
- Schleifgerät nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass zwischen der Innenkontur der Durchtrittsöffnung (17) und der Aussenkontur der Antriebsspindel (4) ein Spiels vorgesehen ist.
- Schleifgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass in dem Schmutzraum (14) im Betrieb des Schleifgerätes ein Druck p1 vorliegt, der kleiner ist als der im Antriebsraum (15) herrschende Druck p2.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10162630A DE10162630A1 (de) | 2001-12-20 | 2001-12-20 | Schleifgerät mit einer Absaughaube |
DE10162630 | 2001-12-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1321231A1 EP1321231A1 (de) | 2003-06-25 |
EP1321231B1 true EP1321231B1 (de) | 2005-05-25 |
Family
ID=7709944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02406076A Expired - Lifetime EP1321231B1 (de) | 2001-12-20 | 2002-12-09 | Schleiferät mit einer Absaughaube |
Country Status (7)
Country | Link |
---|---|
US (1) | US6811476B2 (de) |
EP (1) | EP1321231B1 (de) |
AT (1) | ATE296186T1 (de) |
DE (2) | DE10162630A1 (de) |
DK (1) | DK1321231T3 (de) |
ES (1) | ES2240679T3 (de) |
PL (1) | PL203977B1 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE528111C2 (sv) * | 2004-06-30 | 2006-09-05 | Atlas Copco Tools Ab | Motordrivet verktyg med dammhindrande barriär runt utgående axel |
US20060019585A1 (en) * | 2004-07-26 | 2006-01-26 | Zayat Charles D | Device for circular grinding, sanding and stripping tools to attach to any power drive |
DE102006000360A1 (de) * | 2006-07-20 | 2008-01-24 | Hilti Ag | Werkzeugaufnahme für ein scheibenförmiges Werkzeug |
US8137165B2 (en) | 2008-01-15 | 2012-03-20 | Dust Collection Products, Llc | Dust shroud with adjustable mounting mechanism |
US8177606B2 (en) | 2008-01-15 | 2012-05-15 | Dustless Depot, Llc | Dust shroud for rotary tools |
US20090183377A1 (en) * | 2008-01-21 | 2009-07-23 | Michael Loveless | Dust shroud for circular saws |
US8133094B2 (en) * | 2008-01-21 | 2012-03-13 | Dust Collection Products, Llc | Dust shroud with access hatch retention mechanism |
US8011398B2 (en) * | 2008-01-22 | 2011-09-06 | Dustless Depot, Llc | Dust shroud for gas powered circular saws |
US8702478B2 (en) | 2009-05-08 | 2014-04-22 | Michael Loveless | Angle grinder dust shroud with unitary adjustable mounting collar |
US8381711B2 (en) | 2009-06-16 | 2013-02-26 | Dustless Depot, Llc | Universal dust collection shroud for high speed gas powered saws |
US8523637B2 (en) | 2009-07-21 | 2013-09-03 | Dustless Depot, Llc | Angle grinder dust shroud with slideable access hatch |
US8561512B2 (en) | 2009-08-18 | 2013-10-22 | Dustless Depot Llc | Cutoff saw and stand with integrated dust filtration system |
US8382559B2 (en) * | 2010-04-09 | 2013-02-26 | X'pole Precision Tools Inc. | Negative pressure dust collection structure for power tools |
US9937598B2 (en) * | 2010-10-27 | 2018-04-10 | Subaru Corporation | Cover for cutting tool, holder for cutting, and cutting device |
US9028300B2 (en) * | 2011-08-31 | 2015-05-12 | Ehwa Diamond Industrial Co., Ltd. | Grinding tool adapted to collect grinding particles |
US9038275B2 (en) | 2011-09-07 | 2015-05-26 | Dustless Depot, Llc | Reciprocating saw dust shroud |
TWI584910B (zh) * | 2015-12-02 | 2017-06-01 | X'pole Prec Tools Inc | Machine tool dust blocking structure |
US10293421B2 (en) | 2016-09-15 | 2019-05-21 | Dustless Depot, Llc | Circular saw dust collection shroud |
USD816453S1 (en) | 2016-09-15 | 2018-05-01 | Dustless Depot, Llc | Circular saw dust shroud |
JP6482142B2 (ja) * | 2016-10-04 | 2019-03-13 | 株式会社マルホウ | 塗材剥離装置 |
CN108151044B (zh) * | 2017-12-25 | 2019-07-19 | 常德金德新材料科技股份有限公司 | 一种应用于模压机的环保排烟装置 |
US11338410B1 (en) | 2018-07-02 | 2022-05-24 | SOTA Customs LLC | Dust removal assembly for use with disc grinder |
US11123839B2 (en) | 2018-10-23 | 2021-09-21 | Dustless Depot Llc | Grinder dust shroud with input shaft gasket and adjustable mounting mechanism |
USD908149S1 (en) | 2018-10-23 | 2021-01-19 | Dustless Depot Llc | Angle grinder dust shroud with variable position slots for mounting brackets |
US11273505B2 (en) | 2019-03-27 | 2022-03-15 | Dustless Depot, Llc | Circular saw dust collection shroud |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1189405B (de) * | 1961-08-07 | 1965-03-18 | Lutz Kg Eugen | Staubabsaugvorrichtung fuer Tellerhandschleifmaschinen, insbesondere Falzschleifmaschinen |
DE3805991A1 (de) * | 1987-07-20 | 1989-02-02 | Festo Kg | Tellerschleifmaschine |
DE3724747A1 (de) * | 1987-07-25 | 1989-02-02 | Fein C & E | Schleifgeraet mit staubabsaugeinrichtung |
DE4125795C1 (de) * | 1991-08-03 | 1993-02-11 | C. & E. Fein Gmbh & Co, 7000 Stuttgart, De | |
US5218790A (en) * | 1992-11-12 | 1993-06-15 | Huang Kan Chi | Pneumatically operated debris-removable grinding tool |
DE19503201A1 (de) * | 1995-02-02 | 1996-08-08 | Bosch Gmbh Robert | Handgeführter Betonschleifer |
JPH09267251A (ja) * | 1996-04-02 | 1997-10-14 | S P Air Kk | 研磨装置 |
US5713785A (en) * | 1997-01-17 | 1998-02-03 | Linax Co., Ltd. | Vacuum type portable sander |
US5791979A (en) * | 1997-03-17 | 1998-08-11 | Duncan; C. Warren | Grinding vacuum shroud |
DE19750283A1 (de) * | 1997-11-13 | 1999-05-20 | Hilti Ag | Absaugvorrichtung für handgeführtes Werkzeuggerät |
DE19923145A1 (de) * | 1999-05-20 | 2000-11-23 | Hilti Ag | Absaughaube für handgeführte Trennschleifer |
DE19936555A1 (de) * | 1999-08-03 | 2001-02-08 | Hilti Ag | Staubschutzhaube für Oberflächenschleifgerät |
-
2001
- 2001-12-20 DE DE10162630A patent/DE10162630A1/de not_active Withdrawn
-
2002
- 2002-12-09 ES ES02406076T patent/ES2240679T3/es not_active Expired - Lifetime
- 2002-12-09 AT AT02406076T patent/ATE296186T1/de active
- 2002-12-09 DE DE50203188T patent/DE50203188D1/de not_active Expired - Lifetime
- 2002-12-09 DK DK02406076T patent/DK1321231T3/da active
- 2002-12-09 EP EP02406076A patent/EP1321231B1/de not_active Expired - Lifetime
- 2002-12-10 US US10/315,783 patent/US6811476B2/en not_active Expired - Lifetime
- 2002-12-19 PL PL357892A patent/PL203977B1/pl unknown
Also Published As
Publication number | Publication date |
---|---|
DE10162630A1 (de) | 2003-07-10 |
EP1321231A1 (de) | 2003-06-25 |
US6811476B2 (en) | 2004-11-02 |
ES2240679T3 (es) | 2005-10-16 |
ATE296186T1 (de) | 2005-06-15 |
PL203977B1 (pl) | 2009-11-30 |
DE50203188D1 (de) | 2005-06-30 |
US20030119436A1 (en) | 2003-06-26 |
PL357892A1 (en) | 2003-06-30 |
DK1321231T3 (da) | 2005-09-19 |
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