EP1866125A1 - Handwerkzeugmaschine mit einem schleifteller - Google Patents
Handwerkzeugmaschine mit einem schleiftellerInfo
- Publication number
- EP1866125A1 EP1866125A1 EP06708036A EP06708036A EP1866125A1 EP 1866125 A1 EP1866125 A1 EP 1866125A1 EP 06708036 A EP06708036 A EP 06708036A EP 06708036 A EP06708036 A EP 06708036A EP 1866125 A1 EP1866125 A1 EP 1866125A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hole
- hand tool
- sanding
- tool according
- holes
- 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
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 28
- 238000000605 extraction Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
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
-
- 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
- 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
- B24B23/028—Angle tools
-
- 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
-
- 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
- B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/08—Circular back-plates for carrying flexible material
Definitions
- the present invention relates to a hand tool with a sanding plate with holes for dust extraction according to the preamble of claim 1.
- Abrasive dust in the form of a Schleifstaubpolsters is blown away by means of overpressure at a central hole and is to be sucked through the holes arranged radially outside, since the Schleifstaubpolster disturbs the contact of the abrasive sheet with the workpiece to be ground and tends to melt due to heating and sticking to the abrasive sheet as well as to prevent efficient grinding.
- Gluing dust is prevented.
- the connecting channel is arranged as a downwardly open slot in the bottom of the sanding pad, which is covered by the Velcro over a simple, inexpensive way a central suction in the sanding pad with good adhesion of the sanding sheet can be realized.
- the sanding pad consists of a skeletal, supporting sanding plate, which carries a cushion of soft elastic material, on the underside of a Velcro layer sits, with a metal ring disc centered in the central opening and axially fixed between the grinding plate and the pad, in particular injected a particularly robust sanding pad construction has been chosen.
- the sanding pad is particularly simple connected with an effective, large-scale and central exhaust.
- the abrasive sheet has a central hole corresponding to the central opening of the sanding disk, the sanding dust can be extracted from the center region of the sanding disk in a particularly effective manner.
- Figure 1 is a side view of the hand tool of the invention
- Figure 2 is a bottom view of the grinding plate
- Figure 3 is a sectional view of the grinding plate
- Figure 4 is a plan view of an inventively adapted abrasive sheet.
- Figure 1 shows a side view of the hand tool 10 according to the invention, which is designed as an eccentric grinder. This has a cylindrical housing 12, whose - A -
- Handle 14 extends rearwardly and on the underside of a switch button 16 is arranged, which switches a switch 18 on or off by finger pressure of the operator.
- a switch button 16 which switches a switch 18 on or off by finger pressure of the operator.
- the circuit of a seated in the housing 12 motor 20 is controlled.
- the motor shaft 24 follows with a dust blower 26, an eccentric 28 and a sanding pad 30 whose rotation.
- the engine 20 is by means of
- Electric cable 22 can be connected to a voltage source, not shown.
- the rotating dust blower 26 generates in conjunction with other conventional, not mentioned means on the upper side 46 of the sanding pad 30, a negative pressure and thus at the hole 32, 33 of the sanding pad 30 a suction effect. This will be at the bottom 48 of the
- this negative pressure leads at the same time at the center hole 34 in the central region of the bottom 48 of the sanding pad 30 to a targeted extraction, where there accumulating sanding dust together with the suction air flow 40 formed above the sanding pad 30 by
- Connecting channels 58 is guided radially outward to the holes 32, 33 and from there up to the exhaust nozzle 42 and the dust container 44.
- the sanding pad 30 consists of a sanding plate 36 of flexurally elastic, relatively hard plastic and connected to the sanding plate 36, optionally cast sanding pad 38 made of soft elastic, foamed plastic, which carries a layer of Velcro fabric 50 on its underside 48 for attaching a sanding sheet 52 with velor Backing 53.
- the abrasive sheet 52 has a center hole 55 and radially closer to the outer edge a plurality of evenly spaced dust holes 54 which coincide with the lower holes 33 and lie on a same pitch circle 56.
- the holes 32, 33 pass through the sanding pad 30 and also the Velcro fabric 50 axially and thereby form a hole 33 on the underside 48 and a hole 32 offset radially to the outer edge on the upper side 46 of the sanding pad 30.
- the hole 32 is a partial Blind hole that passes through the sanding pad 30 about 70 to 80%.
- Bottom 48 is a partial blind hole which penetrates the sanding pad 30 to about 30 to 40%.
- the introduced from opposite sides holes 32, 33 penetrate each other axially and radially so that their overcut area defines the actual waist-like hole cross-section between the top and bottom 46, 48.
- the cross-section of the overlapped area is smaller than that of the holes 32, 33 and ensures a high flow rate of the passing dust air and thus for a good Staubabtransport.
- a bottom view of the sanding pad 30 shown in FIG. 2 shows the shape and location of the sanding pad 30
- the connecting channels 58 can be covered by a Velcro layer 50, so that the central exhaust takes place only in the region of the mouth in the center hole 34.
- the condition is that the Velcro layer 50 has a center hole with approximately congruent, unspecified hole.
- the abrasive sheet 52 (Fig. 1) must have a center hole 55 or which is approximately congruent with the center hole 34. Good center suction is also ensured by sanding sheets that have several small holes in the center area.
- Figure 3 shows a sectional view of the grinding plate 30 and sanding pad 30 with the upper dust hole 32 and the lower dust hole 33, wherein the radial and axial offset between the top 46 and underside 48 can be seen each other. Further, the center hole 34 on the bottom 48 can be seen, which extends axially in the direction of the top 46 to the grinding plate 36, so substantially only the grinding pad 38 penetrates.
- a Velcro fabric layer 50 bonded to the underside 48 has congruent recesses with the holes 33, 34 and the connecting channels 58, so that the abrasive sheet 52 (FIG. 4) has a likewise congruent center hole 55 and dust holes 54 with the holes 33, 34 as well as the Connecting channels 58 communicates and ensures effective dust extraction.
- the arrangement of the grinding plate 36 at the top 46 and that of the grinding pad 38 substantially at the bottom 48 of the grinding plate 30 on the upper side 46 of the grinding plate 36 is centrally located a toothed hub 66 which is adapted to engage a not shown gear-like Driver for rotational drive of the grinding plate 30 with the rotation of the motor shaft 24 is used.
- a centering hole 37 is arranged, which is aligned with the toothed hub 66 and the central hole 34 on the bottom 48 of the sanding pad. Through the centering hole 37 engages a screw bolt 29 for attaching the sanding pad 30 at the unillustrated driver.
- annular disc 68 is potted, whose annular hole 79 is aligned with the central hole 34 and a bolt 29 (Fig. 1) centers and guides and secures the clamping force transmission when coupling the grinding plate 30 to the power tool 10.
- FIG. 4 shows a plan view of a grinding blade 52 adapted according to the invention, which has a plurality of radial dust holes 54 on a common pitch circle 56 and a center hole 55 for center suction.
- One of the two flat sides of the abrasive sheet 52 carries an abrasive layer, not shown, and the back of a velor layer to
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510014045 DE102005014045A1 (de) | 2005-03-23 | 2005-03-23 | Handwerkzeugmaschine mit einem Schleifteller |
PCT/EP2006/050689 WO2006100153A1 (de) | 2005-03-23 | 2006-02-06 | Handwerkzeugmaschine mit einem schleifteller |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1866125A1 true EP1866125A1 (de) | 2007-12-19 |
EP1866125B1 EP1866125B1 (de) | 2012-01-11 |
Family
ID=36019373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06708036A Active EP1866125B1 (de) | 2005-03-23 | 2006-02-06 | Handwerkzeugmaschine mit einem schleifteller |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1866125B1 (de) |
CN (1) | CN101146650B (de) |
DE (1) | DE102005014045A1 (de) |
WO (1) | WO2006100153A1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006061635A1 (de) * | 2006-12-27 | 2008-07-03 | Robert Bosch Gmbh | Handgeführte Werkzeugmaschine |
DE102007007787A1 (de) * | 2007-02-16 | 2008-08-21 | Robert Bosch Gmbh | Schleifteller für eine Exzenterschleifmaschine |
CN101633146B (zh) * | 2009-03-03 | 2012-09-05 | 熊根稳 | 清尘磨光机 |
DE102009054811B4 (de) | 2009-12-17 | 2021-06-17 | Robert Bosch Gmbh | Handwerkzeugmaschine |
DE102010028123A1 (de) | 2010-04-22 | 2011-10-27 | Robert Bosch Gmbh | Schleiftellervorrichtung für ein handgeführtes Schleifgerät |
DE102010063481A1 (de) | 2010-12-20 | 2012-06-21 | Robert Bosch Gmbh | Schleiftellervorrichtung für ein handgeführtes Schleifgerät |
DE102011075586A1 (de) | 2011-05-10 | 2012-11-29 | Robert Bosch Gmbh | Schleiftellervorrichtung für ein handgeführtes Schleifgerät |
DE102011079294A1 (de) | 2011-07-18 | 2013-01-24 | Robert Bosch Gmbh | Absaugeinrichtung für eine akkubetriebene Handwerkzeugmaschine |
DE102013225885A1 (de) * | 2013-12-13 | 2015-06-18 | Robert Bosch Gmbh | Batteriebetriebener Exzenterschleifer mit einer wiederaufladbaren Batterie |
DE102015216615A1 (de) | 2015-08-31 | 2017-03-02 | Robert Bosch Gmbh | Schleifteller für ein handgeführtes Elektrowerkzeug, sowie Elektrowerkzeugsystem |
CN106799686A (zh) * | 2015-11-26 | 2017-06-06 | 成都九十度工业产品设计有限公司 | 一种砂纸片粘盘 |
CN206732729U (zh) * | 2017-03-17 | 2017-12-12 | 桂林创源金刚石有限公司 | 一种金刚石异形砂轮及立式加工冷却*** |
CN107443229A (zh) * | 2017-08-31 | 2017-12-08 | 太仓贝斯特机械设备有限公司 | 一种监控磨削盘的磨削式剥皮机及其工作方法 |
CN108857725A (zh) * | 2018-07-26 | 2018-11-23 | 芜湖市黄山松工业地坪新材料有限公司 | 一种建筑材料打磨机 |
CN110328589B (zh) * | 2019-08-06 | 2021-11-26 | 王君 | 一种通过偏心震动旋转产生负气压的家具平板砂光机 |
CN112388468B (zh) * | 2019-08-16 | 2022-12-13 | 博世电动工具(中国)有限公司 | 手持式工具机 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4205977A1 (de) * | 1992-02-27 | 1993-09-02 | Bosch Gmbh Robert | Schleifteller aus mehreren werkstoffschichten |
DE9414167U1 (de) * | 1994-09-01 | 1996-01-11 | Robert Bosch Gmbh, 70469 Stuttgart | Schleifteller |
DE19945060B4 (de) * | 1999-09-20 | 2010-12-02 | Robert Bosch Gmbh | Schleifhandwerkzeugmaschine |
DE20016263U1 (de) * | 2000-09-20 | 2001-10-18 | Kolthoff & Co., Flüelen, Uri | Stützteller für Werkzeuge zur Oberflächenfeinbearbeitung |
-
2005
- 2005-03-23 DE DE200510014045 patent/DE102005014045A1/de not_active Withdrawn
-
2006
- 2006-02-06 WO PCT/EP2006/050689 patent/WO2006100153A1/de not_active Application Discontinuation
- 2006-02-06 CN CN200680009141.3A patent/CN101146650B/zh not_active Expired - Fee Related
- 2006-02-06 EP EP06708036A patent/EP1866125B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2006100153A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2006100153A1 (de) | 2006-09-28 |
CN101146650A (zh) | 2008-03-19 |
EP1866125B1 (de) | 2012-01-11 |
DE102005014045A1 (de) | 2006-09-28 |
CN101146650B (zh) | 2012-11-14 |
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