EP0820838A1 - Ponçeuse à plateau excentrique - Google Patents
Ponçeuse à plateau excentrique Download PDFInfo
- Publication number
- EP0820838A1 EP0820838A1 EP97112604A EP97112604A EP0820838A1 EP 0820838 A1 EP0820838 A1 EP 0820838A1 EP 97112604 A EP97112604 A EP 97112604A EP 97112604 A EP97112604 A EP 97112604A EP 0820838 A1 EP0820838 A1 EP 0820838A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- eccentric
- fan wheel
- eccentric sleeve
- bore
- tool
- 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
- 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
Definitions
- the invention relates to a grinder with a with eccentric stroke driven tool in the generic term of claim 1 closer designated Art.
- Such a grinder is known from DE 35 17 766 C2.
- the motor shaft is at the tool end Hollow shaft executed and has an eccentric bore in which an eccentric pin engages.
- This eccentric pin in turn carries one at its tool end Drive eccentric for the grinding tool, which is relative to the eccentric bore of the motor shaft can be turned.
- the minimum results when the motor runs clockwise Eccentricity and the maximum when the motor runs counterclockwise Eccentricity for the eccentric stroke of the grinding tool is decisive.
- the grinding tool of the well-known Grinder is connected to the machine housing via elastic intermediate links connected to a rotation of the grinding tool to prevent its drive eccentric.
- the well-known Machine requires a considerable height. So is the motor shaft with the eccentric bore at the end still necessary for the dust extraction Fan wheel passed coaxially, this fan wheel is not included in the tool eccentric drive.
- the invention has for its object a grinder with adjustable eccentric stroke according to the generic type Way of creating a more compact nesting of the eccentric members which can be rotated relative to one another the overall height is reduced.
- the grinder shown in FIG. 1 has a housing 1 on, in which an electric motor is arranged upwards from which the lower end of the armature 2 can be seen.
- the pot-like down Opening fan wheel 4 has an eccentric bore 5, in an eccentric sleeve 6 is arranged.
- the eccentric sleeve 6 is concentric with the outer circumference in the eccentric Bore 5 of the fan wheel 4 fitted and opposite the fan wheel 4 in a special manner, whereupon will be discussed in more detail below.
- the eccentric sleeve 6 has an eccentric bore opening downwards 7, in which a driver 10 engages coaxially a bearing 8 on the wall of the eccentric bore 7 supports, which is firmly connected to the driver 10 Pin 10a sits.
- the driver carries a tool 11, with which it is fixed by means of a screw 9, but detachable is connected, with which the tool 11 are replaced can.
- the tool 11 preferably has the shape of a circular grinding plate and is accordingly on his lower working side with an abrasive such as a Sandpaper 12, coated.
- the tool 11 is not supported from the machine housing 1 but is over the driver 10 rotatable in the eccentric sleeve 6 by means of the bearing 8 added, however, a rotation of the grinding tool 11 is only possible in one direction of rotation.
- the grinder is equipped with a dust extractor and so the grinding tool 11 has dust suction openings 13 that continue through the abrasive 12.
- the dust suction openings 13 open at the top a housing interior 14 in which the fan wheel 4 turns.
- the fan wheel 4 is also part of the dust extraction here and conveys the suctioned dust through a channel 15 in the housing 1 in a connected dust bag.
- the fan wheel 4 with its eccentric bore 5 and Eccentric sleeve 6 with its driver 10 on tool 11 eccentrically receiving eccentric bore 7 put two against each other rotatable eccentric members represent their eccentricity add or subtract depending on the rotary position can.
- the rotation takes place the eccentric sleeve 6 with respect to the fan wheel 4 via the Tool 11, and this is the bearing 8 between the driver 10 and the eccentric sleeve 6 with an integrated one-way clutch equipped, which - as mentioned - a free Rotation of the tool 11 relative to the eccentric sleeve 6 only allowed in one of the two directions of rotation, while in the opposite direction of rotation with twisting the tool 11 taken over the bearing 8, the eccentric sleeve 6 becomes. So that the eccentric sleeve 6 compared to the Fan wheel 4 adjusted to the resulting eccentricity The fan wheel 4 be stopped from the outside.
- locking button 16 that can be pushed in against the pressure of a spring, whereby an inner portion 17 of the locking button 16 between the wings 18 of the fan wheel 4 engages, which thus by a stop on the inner section 17 of the locking button 16 is secured against twisting.
- the locking device 19 comprises a spring-loaded locking member 22, which in the eccentric sleeve 6 is embedded axially parallel and in corresponding recesses of the fan wheel 4 engages.
- FIG. 2 basically has the same structure as the grinder of FIG. 1, which is why the same reference numbers are used here for the same parts are.
- Only the locking device 19 and the one-way clutch between the tool 11 and the eccentric sleeve 6 are designed differently here. So are the fan 4 and the eccentric sleeve 6 at its bottom, towards the tool 11 lying open side covered by an washer 20, for which purpose the eccentric sleeve 6 with the fan wheel 4 is flush at the bottom.
- the washer 20 is firmly connected to the air wheel 4 by means of screws 28.
- the locking recesses 21 of the locking device 19 are in the Integrated inside the washer 20, accordingly is the locking member 22 of the locking device 19 in the eccentric sleeve 6 of the washer 20 opposite.
- the one-way clutch 23 is supported in a Bore 24 from, which is also eccentric to the outer circumference the eccentric sleeve 6 attached in the upper end wall 26 thereof is.
- the rotation of the eccentric sleeve 6 with respect to the fan wheel 4 takes place here in the same way as in the exemplary embodiment according to Fig. 1.
- the eccentric sleeve 6 is twisted compared to the fan 4 in the embodiment according to Fig. 3.
- the eccentric sleeve 6 has an upper approach, which carries an external toothing 29.
- Another gear is in engagement with the gear 28 30, which has an axial extension downwards with a Has actuator 27, which has an interior for one Has adjusting key.
- This key can with appropriate Alignment of the rotatable tool 11 by a of the suction openings 13 are introduced into the actuator 27 be, after which by turning the actuator 27th the eccentric sleeve 6 can be rotated via the gear 28 - 30 can, with a separate fixation of the fan wheel 4 superfluous, since the entire transmission 28-30 in the Fan wheel 4 is arranged.
- Locking device 19 also present and in the same way as in the embodiment of the grinder according to FIG. 2 educated.
- a second fan 31 which for the ventilation, so the Cooling of the drive motor is provided.
- Fan wheel 4 instead the fan wheel 31 analog be trained so that it in the manner described can be nested with the eccentric sleeve 6.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19629989 | 1996-07-25 | ||
DE19629989A DE19629989C2 (de) | 1996-07-25 | 1996-07-25 | Schleifer mit einem mittels eines Antriebmotors mit Exzenterhub angetriebenen Werkzeug |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0820838A1 true EP0820838A1 (fr) | 1998-01-28 |
EP0820838B1 EP0820838B1 (fr) | 2000-08-16 |
Family
ID=7800780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97112604A Expired - Lifetime EP0820838B1 (fr) | 1996-07-25 | 1997-07-23 | Ponçeuse à plateau excentrique |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0820838B1 (fr) |
DE (2) | DE19629989C2 (fr) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000029170A1 (fr) * | 1998-11-12 | 2000-05-25 | Robert Bosch Gmbh | Ponceuse a main entrainee par moteur |
WO2002068151A1 (fr) * | 2001-02-27 | 2002-09-06 | E.I. Dupont De Nemours And Company | Tete a orbite aleatoire dotee d'une caracteristique de detection vers le haut |
EP1688217A2 (fr) * | 2005-02-04 | 2006-08-09 | Positec Power Tools (Suzhou) Co., Ltd. | Dispositif de réglage de la course d'un excentrique pour un outil motorisé |
EP1729023A2 (fr) | 2005-06-03 | 2006-12-06 | Positec Power Tools (Suzhou) Co., Ltd. | Mécanisme d'embrayage |
US7721861B2 (en) | 2005-02-04 | 2010-05-25 | Positec Power Tools (Suzhou) Co., Ltd. | Clutch mechanism for use in power tools |
EP3162499A3 (fr) * | 2015-11-02 | 2017-05-10 | Lake Country Manufacturing, Inc. | Mécanisme de course réglable pour machine orbitale aléatoire |
WO2017097701A1 (fr) * | 2015-12-08 | 2017-06-15 | Festool Gmbh | Machine-outil à main |
US10518384B2 (en) | 2015-11-02 | 2019-12-31 | Lake Country Tool, Llc | Adjustable stroke mechanism for random orbital machine |
WO2022105833A1 (fr) * | 2020-11-18 | 2022-05-27 | Milwaukee Electric Tool Corporation | Ponceuse orbitale |
US11493115B2 (en) | 2017-10-30 | 2022-11-08 | Lake Country Tool, Llc | Adjustable stroke device with cam |
US11592055B2 (en) | 2018-08-30 | 2023-02-28 | Lake Country Tool, Llc | Adjustable stroke device with cam |
US11878391B2 (en) | 2022-03-04 | 2024-01-23 | Lake Country Tool, Llc | Adjustable stroke device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013114469A1 (de) * | 2013-12-19 | 2015-06-25 | Flex-Elektrowerkzeuge Gmbh | Handgehaltene Schleifmaschine |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE422285C (de) * | 1924-11-16 | 1925-11-27 | Julius Geiger G M B H | Poliermaschine zur Holzbearbeitung |
US3364625A (en) * | 1965-10-21 | 1968-01-23 | Albertson & Co Inc | Drive for surface-finishing tool |
DE3517766A1 (de) * | 1984-09-08 | 1986-03-20 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schwingschleifer |
DE3620136A1 (de) * | 1986-06-14 | 1987-12-17 | Bosch Gmbh Robert | Handschleifmaschine mit einer vorrichtung zum absaugen |
JPS63156652A (ja) * | 1986-12-17 | 1988-06-29 | Yasuhara Kk | 加工装置 |
EP0558885A2 (fr) * | 1992-01-31 | 1993-09-08 | Robert Bosch Gmbh | Machine-outil portative, en particulier scie circulaire portative à main |
EP0691180A2 (fr) * | 1994-07-08 | 1996-01-10 | Metabowerke GmbH & Co. | Système d'arrêt pour mandrin d'une machine à main |
-
1996
- 1996-07-25 DE DE19629989A patent/DE19629989C2/de not_active Expired - Fee Related
-
1997
- 1997-07-23 DE DE59702189T patent/DE59702189D1/de not_active Expired - Lifetime
- 1997-07-23 EP EP97112604A patent/EP0820838B1/fr not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE422285C (de) * | 1924-11-16 | 1925-11-27 | Julius Geiger G M B H | Poliermaschine zur Holzbearbeitung |
US3364625A (en) * | 1965-10-21 | 1968-01-23 | Albertson & Co Inc | Drive for surface-finishing tool |
DE3517766A1 (de) * | 1984-09-08 | 1986-03-20 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schwingschleifer |
DE3620136A1 (de) * | 1986-06-14 | 1987-12-17 | Bosch Gmbh Robert | Handschleifmaschine mit einer vorrichtung zum absaugen |
JPS63156652A (ja) * | 1986-12-17 | 1988-06-29 | Yasuhara Kk | 加工装置 |
EP0558885A2 (fr) * | 1992-01-31 | 1993-09-08 | Robert Bosch Gmbh | Machine-outil portative, en particulier scie circulaire portative à main |
EP0691180A2 (fr) * | 1994-07-08 | 1996-01-10 | Metabowerke GmbH & Co. | Système d'arrêt pour mandrin d'une machine à main |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 012, no. 419 (M - 760) 8 November 1988 (1988-11-08) * |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000029170A1 (fr) * | 1998-11-12 | 2000-05-25 | Robert Bosch Gmbh | Ponceuse a main entrainee par moteur |
WO2002068151A1 (fr) * | 2001-02-27 | 2002-09-06 | E.I. Dupont De Nemours And Company | Tete a orbite aleatoire dotee d'une caracteristique de detection vers le haut |
US7530881B2 (en) | 2005-02-04 | 2009-05-12 | Positec Power Tools (Suzhou) Co., Ltd. | Eccentric stroke adjusting mechanism |
EP1688217A2 (fr) * | 2005-02-04 | 2006-08-09 | Positec Power Tools (Suzhou) Co., Ltd. | Dispositif de réglage de la course d'un excentrique pour un outil motorisé |
EP1688217A3 (fr) * | 2005-02-04 | 2006-08-23 | Positec Power Tools (Suzhou) Co., Ltd. | Dispositif de réglage de la course d'un excentrique pour un outil motorisé |
CN100453271C (zh) * | 2005-02-04 | 2009-01-21 | 苏州宝时得电动工具有限公司 | 偏心距调节机构 |
US7721861B2 (en) | 2005-02-04 | 2010-05-25 | Positec Power Tools (Suzhou) Co., Ltd. | Clutch mechanism for use in power tools |
EP1729023A3 (fr) * | 2005-06-03 | 2009-03-18 | Positec Power Tools (Suzhou) Co., Ltd. | Mécanisme d'embrayage |
EP1729023A2 (fr) | 2005-06-03 | 2006-12-06 | Positec Power Tools (Suzhou) Co., Ltd. | Mécanisme d'embrayage |
US10518384B2 (en) | 2015-11-02 | 2019-12-31 | Lake Country Tool, Llc | Adjustable stroke mechanism for random orbital machine |
EP3162499A3 (fr) * | 2015-11-02 | 2017-05-10 | Lake Country Manufacturing, Inc. | Mécanisme de course réglable pour machine orbitale aléatoire |
US10981258B2 (en) | 2015-11-02 | 2021-04-20 | Lake Country Tool, Llc | Adjustable stroke mechanism for random orbital machine |
US10144106B2 (en) | 2015-11-02 | 2018-12-04 | Lake Country Manufacturing, Inc. | Adjustable stroke mechanism for random orbital machine |
WO2017097701A1 (fr) * | 2015-12-08 | 2017-06-15 | Festool Gmbh | Machine-outil à main |
CN108290265A (zh) * | 2015-12-08 | 2018-07-17 | 费斯托工具有限责任公司 | 手持式工具机 |
EP4292760A3 (fr) * | 2015-12-08 | 2024-02-21 | Festool GmbH | Machine-outil à main |
US11493115B2 (en) | 2017-10-30 | 2022-11-08 | Lake Country Tool, Llc | Adjustable stroke device with cam |
US11674571B2 (en) | 2017-10-30 | 2023-06-13 | Lake Country Tool, Llc | Adjustable stroke device with cam |
US11927250B2 (en) | 2017-10-30 | 2024-03-12 | Lake Country Tool, Llc | Adjustable stroke device with cam |
US11592055B2 (en) | 2018-08-30 | 2023-02-28 | Lake Country Tool, Llc | Adjustable stroke device with cam |
WO2022105833A1 (fr) * | 2020-11-18 | 2022-05-27 | Milwaukee Electric Tool Corporation | Ponceuse orbitale |
US11878391B2 (en) | 2022-03-04 | 2024-01-23 | Lake Country Tool, Llc | Adjustable stroke device |
Also Published As
Publication number | Publication date |
---|---|
DE19629989C2 (de) | 1999-01-28 |
DE19629989A1 (de) | 1998-02-05 |
DE59702189D1 (de) | 2000-09-21 |
EP0820838B1 (fr) | 2000-08-16 |
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