EP1321231A1 - Schleiferät mit einer Absaughaube - Google Patents
Schleiferät mit einer Absaughaube Download PDFInfo
- Publication number
- EP1321231A1 EP1321231A1 EP02406076A EP02406076A EP1321231A1 EP 1321231 A1 EP1321231 A1 EP 1321231A1 EP 02406076 A EP02406076 A EP 02406076A EP 02406076 A EP02406076 A EP 02406076A EP 1321231 A1 EP1321231 A1 EP 1321231A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive spindle
- tool holder
- drive
- grinding device
- suction
- 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
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, passing through a bearing unit, with its free end projecting beyond the housing, Drive spindle, a tool holder for at the free end of the drive spindle releasable setting of a tool is provided and the free one on the housing Suction hood surrounding the end of the drive spindle, one for the tool holder has open suction space.
- Grinders of the type mentioned above are used to process a surface using a motor-driven drive spindle at its free end a tool holder for releasably fixing a tool, in particular a grinding wheel is. Arise during a grinding process due to the rotary movement of the tool particles removed from the surface, which leads to strong dust formation to lead. To avoid or at least reduce pollution of an environment arranged on a housing of the grinder, a suction hood, the free end surrounds the drive spindle and a suction chamber which is open towards the tool holder having.
- a disadvantage of the known solution is that the bearing unit is sealed on the one hand is economically very complex and, on the other hand, the ingress of dust into the storage unit cannot be prevented.
- the present invention has for its object to be an economically producible To create a grinder that has a powerful dust extraction and penetration prevented from dust in the storage unit
- the object is achieved in that the suction space between the Tool holder and the storage unit has an intermediate wall, the suction chamber into a dirt space that is open towards the tool holder and into one the drive compartment attached to it and the partition has a passage opening for the passage of the drive spindle.
- the suction chamber has an intermediate wall that is sensitive to dirt Parts, such as the storage unit, are separated from the dust by a constructive simple means of preventing the partition from soiling these parts.
- the dirt chamber preferably has at least one suction opening, which is connected to a vacuum source is connectable to.
- the drive space has at least one inlet opening that is open to the outside, to ensure an optimal supply of air from the environment of the grinder.
- the inlet opening has an air filter, for example to To filter dust from the air from outside.
- the game ensures an air flow between the drive room and the Dirt space and thus prevents dust from entering through the passage opening, because in this area, due to the pressure difference between the drive compartment and the Dirt room, flow rate is very high.
- the figure shows a part of a grinding device according to the invention in longitudinal section with a Housing 1, a motor 2, partially shown, 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 with its free end 7 over the housing 1.
- a tool holder 8 for detachable Setting a tool 9, in particular a grinding plate, provided.
- To the Housing 1 closes a suction hood surrounding the free end 7 of the drive spindle 4 11, which has a suction chamber 12 open towards the tool holder 8.
- the suction chamber 12 has a between the tool holder 8 and the bearing unit 5 Intermediate wall 13 which opens the suction chamber 12 into a tool holder 8 trained dirt space 14 and in one, against the tool holder 8 thereon subsequent, drive room 15 divided.
- the intermediate wall 13 also has a passage opening 17 to carry 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 space 14 has a suction opening 18, for example through a suction nozzle 19 can be connected to a vacuum source, not shown.
- the drive room 15 has an inlet opening 16, which is open to the outside, around a Form air duct from the outside to the drive chamber 15.
- the dirt space 14 vacuumed by the vacuum source has a smaller pressure p 1 than the pressure p 2 prevailing in the drive space 15.
- This pressure difference creates an air flow a between the drive space 15 and the dirt space 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 dimensioned play.
- the resulting pressure difference between the pressure p a prevailing outside and the pressure p 2 prevailing in the drive space 15 generates an air flow b from the outside into the drive space 15.
- Dust or other particles generated by the grinding process are suctioned off by the negative pressure p 1 prevailing in the dirt chamber 14 and sucked out of the dirt chamber 14 by the suction opening 18 by means of pressure p u generated by the vacuum source.
- the air flow a prevents dust or the like from entering the drive chamber 15.
- the tool holder 8 has a flange 20 and fixed to the drive spindle 4 a nut which can be screwed onto the drive spindle 4 by means of a threaded connection 21 22, wherein the tool 9 in the clamped state between the flange 20 and the Nut 22 on the drive spindle 4 is fixed 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)
- Disintegrating Or Milling (AREA)
- Carbon And Carbon Compounds (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
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, dadurch gekennzeichnet, dass 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.
- Schleifgerät nach Anspruch 1, dadurch gekennzeichnet, dass der Schmutzraum (14) zumindest eine Absaugöffnung (18) aufweist, die mit einer Unterdruckquelle verbindbar ist.
- Schleifgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Antriebsraum (15) zumindest eine Eintrittsöffnung (16) aufweist, die nach aussen hin offen ist.
- Schleifgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zwischen der Innenkontur der Durchtrittsöffnung (17) und der Aussenkontur der Antriebsspindel (4) ein Spiels vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10162630 | 2001-12-20 | ||
DE10162630A DE10162630A1 (de) | 2001-12-20 | 2001-12-20 | Schleifgerät mit einer Absaughaube |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1321231A1 true EP1321231A1 (de) | 2003-06-25 |
EP1321231B1 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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108151044A (zh) * | 2017-12-25 | 2018-06-12 | 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 |
Families Citing this family (24)
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 |
US8177606B2 (en) | 2008-01-15 | 2012-05-15 | Dustless Depot, Llc | Dust shroud for rotary tools |
US8137165B2 (en) | 2008-01-15 | 2012-03-20 | Dust Collection Products, Llc | Dust shroud with adjustable mounting mechanism |
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 |
CN103180074B (zh) * | 2010-10-27 | 2016-08-31 | 富士重工业株式会社 | 切削刀具用罩、切削用支架及切削装置 |
WO2013032115A1 (en) * | 2011-08-31 | 2013-03-07 | Ehwa Diamond Industrial Co., Ltd. | Grinding tool |
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 |
US11338410B1 (en) | 2018-07-02 | 2022-05-24 | SOTA Customs LLC | Dust removal assembly for use with disc grinder |
USD908149S1 (en) | 2018-10-23 | 2021-01-19 | Dustless Depot Llc | Angle grinder dust shroud with variable position slots for mounting brackets |
US11123839B2 (en) | 2018-10-23 | 2021-09-21 | Dustless Depot Llc | Grinder dust shroud with input shaft gasket and adjustable mounting mechanism |
US11273505B2 (en) | 2019-03-27 | 2022-03-15 | Dustless Depot, Llc | Circular saw dust collection shroud |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1189405B (de) * | 1961-08-07 | 1965-03-18 | Lutz Kg Eugen | Staubabsaugvorrichtung fuer Tellerhandschleifmaschinen, insbesondere Falzschleifmaschinen |
DE19503201A1 (de) * | 1995-02-02 | 1996-08-08 | Bosch Gmbh Robert | Handgeführter Betonschleifer |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 DK DK02406076T patent/DK1321231T3/da active
- 2002-12-09 EP EP02406076A patent/EP1321231B1/de 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
- 2002-12-10 US US10/315,783 patent/US6811476B2/en not_active Expired - Lifetime
- 2002-12-19 PL PL357892A patent/PL203977B1/pl unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1189405B (de) * | 1961-08-07 | 1965-03-18 | Lutz Kg Eugen | Staubabsaugvorrichtung fuer Tellerhandschleifmaschinen, insbesondere Falzschleifmaschinen |
DE19503201A1 (de) * | 1995-02-02 | 1996-08-08 | Bosch Gmbh Robert | Handgeführter Betonschleifer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108151044A (zh) * | 2017-12-25 | 2018-06-12 | 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 |
Also Published As
Publication number | Publication date |
---|---|
ATE296186T1 (de) | 2005-06-15 |
PL357892A1 (en) | 2003-06-30 |
DE50203188D1 (de) | 2005-06-30 |
ES2240679T3 (es) | 2005-10-16 |
DE10162630A1 (de) | 2003-07-10 |
PL203977B1 (pl) | 2009-11-30 |
US20030119436A1 (en) | 2003-06-26 |
US6811476B2 (en) | 2004-11-02 |
EP1321231B1 (de) | 2005-05-25 |
DK1321231T3 (da) | 2005-09-19 |
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