EP0916453A2 - Absaugvorrichtung für handgeführtes Werkzeugggerät - Google Patents
Absaugvorrichtung für handgeführtes Werkzeugggerät Download PDFInfo
- Publication number
- EP0916453A2 EP0916453A2 EP98810948A EP98810948A EP0916453A2 EP 0916453 A2 EP0916453 A2 EP 0916453A2 EP 98810948 A EP98810948 A EP 98810948A EP 98810948 A EP98810948 A EP 98810948A EP 0916453 A2 EP0916453 A2 EP 0916453A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- curtain
- slots
- suction device
- circumferential extent
- housing
- 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
- 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
-
- 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 suction device, in particular for plate-like tools Handheld devices according to the preamble of patent claim 1.
- a suction device from the processing point is suctioned off and fed to a collecting container.
- a handheld device in the form of an angle grinder is known for example from FR 27 12 835.
- the Suction device of this angle grinder has a peripheral area of a plate-like Tool in the form of a grinding wheel surrounding, hood-shaped Housing, which is fixed to the device housing of the angle grinder.
- the housing is with a screening curtain provided that projects beyond the housing and the interior of the housing seals against the external environment in such a way that a negative pressure in the interior can be generated by means of a device for generating a negative pressure.
- a device for generating a negative pressure is made from a strip of flexible, elastic material formed.
- the device for generating a negative pressure The amount of air discharged from the housing through an outlet opening is transferred via a Intake cross section sucked from the outside into the interior of the housing.
- the Intake cross section is from an annular space between the curtain and the underground that arises when one is not worn out The grinding wheel rests on the surface.
- the invention has for its object to provide a suction device whose Shielding curtain is not prone to wear and is of sufficient size Intake cross-section guaranteed.
- the Slots divide the free end of the curtain into several side by side arranged sections, which are dependent on the through the intake cross section Bend the amount of air flowing into the housing towards the inside of the housing and in this way ensure a sufficient size of the intake cross section.
- the slots preferably run essentially normal to the circumference of the curtain.
- the sections can be bent more easily, expediently they extend the slots at least partially over the entire height of the curtain.
- a constant width of the slots or a constant distance between the individual sections in the circumferential extent of the shielding curtain is reached by expediently the width of the slots measured in circumferential extent increases towards the free end of the curtain.
- the width of the slots can be for example, increase by the individual sections in the transition area from the Slots are rounded to the free end of the sections, the radius of the Rounding corresponds at most to the length of the slots.
- the extent of the individual sections in the circumferential extent of the screening curtain can for example also towards the free end of the sections rejuvenate. In this way, there are slits that extend to the free end of the Extend sections conically.
- the width of the slots or the circumferential extent of the Shielding curtain extending distance between the individual sections is preferably the smallest width measured in the circumferential extent of the screening curtain Slots 0 to 3 mm.
- the sections of the screening curtain are subject to a while Underground of a constant movement. So that this movement of the sections does not increase tearing of the shielding curtain in the attachment area of the slots preferably the slots in radial openings of the screening curtain, the Diameter exceeds the width of the slots in the mouth area.
- the Shielding curtain is formed from an elastomer.
- the invention is based on a drawing, the suction device according to the invention reproduces described in more detail.
- the angle grinder 1 which is only hinted at in the drawing, has one arranged in a device housing 11 drive motor, the rotational movement outputs on an output shaft 12 via an angular gear.
- the drive motor and that Angular gears are not shown.
- On the free, protruding from the device housing 11 The end region of the output shaft 12 is a plate-like tool 4 in the form of a Fixed grinding wheel, which performs a rotating movement on a surface U. and removes small particles from the underground U.
- a suction device that the Covering grinding wheel, arranged substantially coaxially to the grinding wheel hood-shaped housing 2 and a screening curtain 3.
- the housing 2 Starting from the fastening area of the housing 2 in the area of the angular gear the housing 2 widens conically up to its machining direction side, free end opposite the attachment area.
- the housing 2 In the area of conical Enlargement, the housing 2 is provided with an outlet opening 21 which opens into one the outside of the housing 2 arranged mounting neck 22 opens.
- This Fastening nozzle 22 is with a device, not shown, for generating a Vacuum in the processing area of the grinding wheel, or in the interior of the Housing 2 and with a collecting container, not shown, for the from the underground U removed particles can be connected.
- the device for generating a negative pressure is, for example, an external suction device with one Hose line, which can be fixed on the attachment piece 22.
- the shielding curtain 3 has a fastening area projecting into the housing 2 and is made of a strip-shaped elastomer part bent into a ring educated.
- the two clamping rings 5, 6 have a height H extending parallel to the longitudinal axis of the housing 2.
- the shielding curtain 3 has a plurality of slots 31 which are essentially parallel extend to the longitudinal axis of the housing 2 and to the free end of the screening curtain 3 are open. Through these slots 31 becomes part of the curtain 3 in several in a circumferential extent of the shielding curtain 3 in a row arranged, elastic sections 33 divided.
- the sections 33 can be of one Air flow running in the direction of the arrow, for example from an external Device for generating a vacuum is easily generated to the interior of the Bend housing 2 towards.
- the slots 31 open into radially extending through openings 32, whose diameter is 0.2mm to 5mm.
- the shielding curtain 3 formed from an elastomer part has a thickness S of 0.2mm to 3mm.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- External Artificial Organs (AREA)
- Manipulator (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims (9)
- Absaugvonrichtung, insbesondere für tellerartige Werkzeuge aufweisende Handgeräte (1) mit einem die Rückseite und teilweise den Umfang der Werkzeuge (4) umgebbaren haubenförmigen Gehäuse (2), das mit einer Vorrichtung für die Erzeugung eines Unterdruckes verbindbar ist, sowie einen sich über den Umfang der freien Stimseite erstreckenden und diese axial überragenden Abschirmvorhang (3) aus nachgiebigem Material aufweist, dadurch gekennzeichnet, dass der Abschirmvorhang (3) mehrere entlang dessen Umfangserstreckung verteilte, zum freien Ende hin offene Schlitze (31) aufweist.
- Absaugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Schlitze (31) im wesentlichen normal zur Umfangserstreckung des Abschirmvorhanges (3) verlaufen.
- Absaugvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich die Schlitze (31) wenigstens teilweise über die gesamte Höhe des Abschirmvorhanges (3) erstrecken.
- Absaugvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass 1 bis 50 Schlitze (31) gleichmässig über den Umfang des Abschirmvorhanges (3) verteilt angeordnet sind.
- Absaugvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die in Umfangserstreckung gemessene Breite der Schlitze (31) zum freien Ende des Abschirmvorhanges (3) hin zunimmt.
- Absaugvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die geringste, in Umfangserstreckung des Abschirmvorhanges (3) gemessene Breite der Schlitze (31) 0 bis 3 mm beträgt.
- Absaugvorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass die Schlitze (31) in radiale Durchtrittsöffnungen (32) des Abschirmvorhanges (3) münden, deren Durchmesser die Breite der Schlitze (31) im Mündungsbereich überragt.
- Absaugvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Durchmesser der radialen Durchtrittsöffnungen (32) 0,2 mm bis 5 mm beträgt.
- Absaugvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Abschirmvorhang (3) aus einem Elastomer gebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19750283 | 1997-11-13 | ||
DE19750283A DE19750283A1 (de) | 1997-11-13 | 1997-11-13 | Absaugvorrichtung für handgeführtes Werkzeuggerät |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0916453A2 true EP0916453A2 (de) | 1999-05-19 |
EP0916453A3 EP0916453A3 (de) | 1999-07-14 |
EP0916453B1 EP0916453B1 (de) | 2002-01-23 |
Family
ID=7848600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98810948A Expired - Lifetime EP0916453B1 (de) | 1997-11-13 | 1998-09-22 | Absaugvorrichtung für handgeführtes Werkzeugggerät |
Country Status (6)
Country | Link |
---|---|
US (1) | US6053806A (de) |
EP (1) | EP0916453B1 (de) |
JP (1) | JPH11216671A (de) |
AT (1) | ATE212273T1 (de) |
DE (2) | DE19750283A1 (de) |
ES (1) | ES2172109T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001021363A1 (de) * | 1999-09-17 | 2001-03-29 | Homag Maschinenbau Ag | Bearbeitungsaggregat mit einem rotierenden werkzeug und mit einer absaughaube |
CN108202282A (zh) * | 2016-12-20 | 2018-06-26 | 天津津航技术物理研究所 | 一种高效石英球面整流罩数控加工方法 |
EP3705229A1 (de) * | 2019-03-04 | 2020-09-09 | Hilti Aktiengesellschaft | Staubhaubenerweiterungsvorrichtung und system umfassend eine solche staubhaubenerweiterungsvorrichtung und einen adapter |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19900928C2 (de) * | 1999-01-13 | 2001-10-31 | Bosch Gmbh Robert | Staubschutzhaube für ein Schleifwerkzeug |
DE10162630A1 (de) * | 2001-12-20 | 2003-07-10 | Hilti Ag | Schleifgerät mit einer Absaughaube |
US20040154168A1 (en) * | 2003-02-07 | 2004-08-12 | Mcdonald Jon Anthony | Dust and debris shield for powered hand tool |
DK1706239T3 (da) * | 2003-12-08 | 2009-07-27 | Flex Trim As | Slibeapparat |
KR101220750B1 (ko) * | 2010-07-06 | 2013-01-09 | 계양전기 주식회사 | 위치 조절이 용이한 더스트 후드 조립체 및 이러한 더스트 후드 조립체를 구비한 전동공구 |
US8801506B2 (en) * | 2011-11-28 | 2014-08-12 | X'pole Precision Tools Inc. | Dust collection hood for grinding machine tools |
CN110450245A (zh) * | 2019-06-27 | 2019-11-15 | 安徽尧龙竹木制品有限公司 | 一种高耐磨抗静电防潮重组竹板加工防尘设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1951105A (en) * | 1933-02-03 | 1934-03-13 | American Floor Surfacing Mach | Rotary disk edging machine |
US3673744A (en) * | 1971-02-12 | 1972-07-04 | Anders Oimoen | Portable grinder |
US4099328A (en) * | 1977-07-20 | 1978-07-11 | Schlemmer John E | Machine for removing floor covering |
US4965966A (en) * | 1987-12-11 | 1990-10-30 | Gerd Braasch | Grinding tool body |
US5527207A (en) * | 1994-06-27 | 1996-06-18 | Azar; John C. | Dust collection shroud for hand held power tools |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3172831A (en) * | 1960-06-15 | 1965-03-09 | Anocut Eng Co | Grinding machine |
US3068620A (en) * | 1961-02-06 | 1962-12-18 | Tocci-Guilbert Berne | Safety guard for grinding machine |
US3148488A (en) * | 1961-12-11 | 1964-09-15 | Sun Tool And Machine Company | Coolant splash shield and support |
US5388305A (en) * | 1993-09-17 | 1995-02-14 | Surtec, Inc. | Vacuum buffer |
FR2712835B3 (fr) * | 1993-11-26 | 1995-10-06 | Ko Kent | Outil abrasif avec unité de collecte de poussière. |
US5411433A (en) * | 1994-06-13 | 1995-05-02 | Dynabrade, Inc. | Dust-collecting apparatus |
US5709597A (en) * | 1995-11-21 | 1998-01-20 | Sarantitis; Andreas I. | Pivotal vacuum shield for an abrading device |
US5711051A (en) * | 1996-04-01 | 1998-01-27 | Professional Chemicals Corporation | Hard surface cleaning appliance |
SE507264C2 (sv) * | 1996-06-13 | 1998-05-04 | Atlas Copco Tools Ab | Handhållet motordrivet verktyg |
US5713785A (en) * | 1997-01-17 | 1998-02-03 | Linax Co., Ltd. | Vacuum type portable sander |
-
1997
- 1997-11-13 DE DE19750283A patent/DE19750283A1/de not_active Withdrawn
-
1998
- 1998-09-22 DE DE59802888T patent/DE59802888D1/de not_active Expired - Lifetime
- 1998-09-22 ES ES98810948T patent/ES2172109T3/es not_active Expired - Lifetime
- 1998-09-22 EP EP98810948A patent/EP0916453B1/de not_active Expired - Lifetime
- 1998-09-22 AT AT98810948T patent/ATE212273T1/de active
- 1998-11-09 US US09/188,879 patent/US6053806A/en not_active Expired - Lifetime
- 1998-11-11 JP JP10320447A patent/JPH11216671A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1951105A (en) * | 1933-02-03 | 1934-03-13 | American Floor Surfacing Mach | Rotary disk edging machine |
US3673744A (en) * | 1971-02-12 | 1972-07-04 | Anders Oimoen | Portable grinder |
US4099328A (en) * | 1977-07-20 | 1978-07-11 | Schlemmer John E | Machine for removing floor covering |
US4965966A (en) * | 1987-12-11 | 1990-10-30 | Gerd Braasch | Grinding tool body |
US5527207A (en) * | 1994-06-27 | 1996-06-18 | Azar; John C. | Dust collection shroud for hand held power tools |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001021363A1 (de) * | 1999-09-17 | 2001-03-29 | Homag Maschinenbau Ag | Bearbeitungsaggregat mit einem rotierenden werkzeug und mit einer absaughaube |
CN108202282A (zh) * | 2016-12-20 | 2018-06-26 | 天津津航技术物理研究所 | 一种高效石英球面整流罩数控加工方法 |
EP3705229A1 (de) * | 2019-03-04 | 2020-09-09 | Hilti Aktiengesellschaft | Staubhaubenerweiterungsvorrichtung und system umfassend eine solche staubhaubenerweiterungsvorrichtung und einen adapter |
WO2020178072A1 (de) * | 2019-03-04 | 2020-09-10 | Hilti Aktiengesellschaft | Staubhaubenerweiterungsvorrichtung und system umfassend eine solche staubhaubenerweiterungsvorrichtung und einen adapter |
Also Published As
Publication number | Publication date |
---|---|
DE19750283A1 (de) | 1999-05-20 |
DE59802888D1 (de) | 2002-03-14 |
ES2172109T3 (es) | 2002-09-16 |
JPH11216671A (ja) | 1999-08-10 |
ATE212273T1 (de) | 2002-02-15 |
EP0916453A3 (de) | 1999-07-14 |
US6053806A (en) | 2000-04-25 |
EP0916453B1 (de) | 2002-01-23 |
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