EP1302281B1 - Conduit d'air de refroidissement d'un outil de percussion - Google Patents
Conduit d'air de refroidissement d'un outil de percussion Download PDFInfo
- Publication number
- EP1302281B1 EP1302281B1 EP01811005A EP01811005A EP1302281B1 EP 1302281 B1 EP1302281 B1 EP 1302281B1 EP 01811005 A EP01811005 A EP 01811005A EP 01811005 A EP01811005 A EP 01811005A EP 1302281 B1 EP1302281 B1 EP 1302281B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- hand tool
- cooling air
- air duct
- air
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/20—Devices for cleaning or cooling tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
- B25D2211/003—Crossed drill and motor spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/0057—Details related to cleaning or cooling the tool or workpiece
- B25D2217/0061—Details related to cleaning or cooling the tool or workpiece related to cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S173/00—Tool driving or impacting
- Y10S173/02—Sound muffling
Definitions
- the invention relates to an at least partially beating electric hand tool device, such as a hammer drill, combi and chisel hammer, with electro-pneumatic striking mechanism preferably for hitting abrasive removal of rock.
- electric hand tool devices generate from electrical energy by means of an electric motor and suitable mechanical transformation of an axial, hitting swinging and optionally additionally a superimposed rotating movement, which is transmitted to the appropriate use a tool force and form fit.
- DE19626254A1 cool electric hand tool devices by means of the sucked by a cooling fan of the electric motor through air openings in the housing cooling air, which is pressed by the pneumatic percussion and cavities between the percussion unit and the machine housing, and the percussion.
- DE19600339C1 forms a striking hand tool between the outer housing and the assemblies of the drive and transmission various air channels.
- a movable guide tube of a beating hand tool is thermally insulated via an air gap to the outer housing.
- DE3405922 has a striking hand tool on a percussion unit, which is movable separately within the vibration damped mounted outer housing with the handle attached thereto.
- the object of the invention is the realization of a well-cooled, vibration-dampened in the outer housing movable striking mechanism of an electric hand tool.
- an at least partially striking electric hand tool device with an electro-pneumatic percussion in a percussion unit which in a, air openings for a cooling fan having outer housing is vibration-dampened, at least one attached to the percussion unit cooling air line to the cooling fan.
- the cooling air line is connected at the end to at least one, substantially annular cooling, airflow-conducting cooling ring, whereby the impact mechanism is substantially uniformly circumferentially coolable.
- the cooling ring has circumferentially distributed annular openings, whereby the cooling air flow flowing into the cooling ring via air openings in the outer housing is distributed circumferentially.
- Fig. 1 the striking along an axis A electric hand tool 1 an electropneumatic percussion 2 in a percussion unit 3, which is vibration damped in an air openings 4 for a cooling fan 5, outer housing 6 by an elastic suspension, wherein on the percussion unit 3 a cooling air duct 7 is attached to the cooling fan 5.
- the cooling air line 7 is connected at the end to an annular cooling airflow-conducting cooling ring 8, which is fastened near a gas spring 9 of the impact mechanism 2.
- the cooling ring 8 has circumferentially distributed ring openings 10, which are arranged near the air openings 4 in the outer housing 6, through which the air flow 11 via the cooling air line 7 to the electric motor 12, further to the cooling fan 5 and behind this to the air outlet openings 13 in the outer housing 6, without it can cause a return flow 14 to an air short circuit.
- the cooling rim 8 which is concentrically mounted on the percussion unit 3, has circumferentially distributed rim openings 10, which are connected to the cooling air line 7 via an annular channel 15.
- the air flow 11 enters via the, the rim openings 10 spatially associated, air openings 4 in the outer housing 6 in the cooling air line 7 a.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Claims (3)
- Outil à main électrique avec un mécanisme de percussion électropneumatique au moins partiellement à percussion (2) dans un ensemble de mécanisme de percussion (3) qui est mobile avec amortissement des vibrations dans un carter extérieur (6) pourvu d'évents (4) pour un ventilateur de refroidissement (5), caractérisé en ce qu'au moins une conduite d'air de refroidissement (7) menant au ventilateur de refroidissement (5) est fixée à l'ensemble de mécanisme de percussion (3).
- Outil à main électrique selon la revendication 1, caractérisé en ce que, à son extrémité, la conduite d'air de refroidissement (7) est reliée à au moins une couronne de refroidissement à refroidissement sensiblement annulaire (8) qui conduit le flux d'air.
- Outil à main électrique selon la revendication 1, caractérisé en ce que la couronne de refroidissement (8) est pourvue d'ouvertures de couronne (10) réparties sur sa périphérie.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50112450T DE50112450D1 (de) | 2001-10-15 | 2001-10-15 | Kühlluftleitung für ein Elektrohandwerkzeuggerät mit elektropneumatischem Schlagwerk |
AT01811005T ATE361182T1 (de) | 2001-10-15 | 2001-10-15 | Kühlluftleitung für ein elektrohandwerkzeuggerät mit elektropneumatischem schlagwerk |
EP01811005A EP1302281B1 (fr) | 2001-10-15 | 2001-10-15 | Conduit d'air de refroidissement d'un outil de percussion |
CN02146822.2A CN1411959A (zh) | 2001-10-15 | 2002-10-11 | 具有电风动冲击工具的手持电动工具机 |
PL356629A PL203191B1 (pl) | 2001-10-15 | 2002-10-14 | Urządzenie ręczne z elektrycznie napędzanym narzędziem i elektropneumatycznym mechanizmem uderzeniowym |
US10/270,940 US6776245B2 (en) | 2001-10-15 | 2002-10-15 | Electrical hand-held power tool with an electropneumatic percussion mechanism |
JP2002300498A JP2003165073A (ja) | 2001-10-15 | 2002-10-15 | 電動手工具装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01811005A EP1302281B1 (fr) | 2001-10-15 | 2001-10-15 | Conduit d'air de refroidissement d'un outil de percussion |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1302281A1 EP1302281A1 (fr) | 2003-04-16 |
EP1302281B1 true EP1302281B1 (fr) | 2007-05-02 |
Family
ID=8184189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01811005A Expired - Lifetime EP1302281B1 (fr) | 2001-10-15 | 2001-10-15 | Conduit d'air de refroidissement d'un outil de percussion |
Country Status (7)
Country | Link |
---|---|
US (1) | US6776245B2 (fr) |
EP (1) | EP1302281B1 (fr) |
JP (1) | JP2003165073A (fr) |
CN (1) | CN1411959A (fr) |
AT (1) | ATE361182T1 (fr) |
DE (1) | DE50112450D1 (fr) |
PL (1) | PL203191B1 (fr) |
Families Citing this family (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8047302B2 (en) * | 2001-12-21 | 2011-11-01 | Wacker Neuson Produktion GmbH & Co. KG | Drilling and/or striking hammer with a lubricating device |
GB2385017B (en) * | 2002-02-08 | 2005-06-29 | Black & Decker Inc | Drilling and/or hammering tool |
DE10302089B3 (de) * | 2003-01-17 | 2004-10-14 | Hilti Ag | Schlagende Elektrohandwerkzeugmaschine mit einem Piezoaktor |
DE10326472B4 (de) * | 2003-06-12 | 2006-03-09 | Hilti Ag | Verbindungselement zum Verbinden eines Handgriffs mit einem Gehäuseteil und einem Getriebegehäuse eines Elektrohandgeräts |
AU2004284018C1 (en) * | 2003-10-28 | 2010-10-07 | Ibex Industries Limited | Powered hand tool |
DE10357758A1 (de) * | 2003-12-10 | 2005-07-21 | Wacker Construction Equipment Ag | Aufbruch- und/oder Bohrhammer mit linear geführter Griffeinrichtung |
DE102004029220B4 (de) * | 2004-06-16 | 2006-03-23 | Hilti Ag | Handwerkzeuggerät mit Staubabsaugmodul |
EP1637288B1 (fr) | 2004-09-16 | 2014-08-13 | HILTI Aktiengesellschaft | Outil à main électrique amortissant les vibrations |
DE102004047606A1 (de) * | 2004-09-30 | 2006-04-06 | Hilti Ag | Bohr- und/oder Meisselhammer |
DE102004058696A1 (de) * | 2004-12-06 | 2006-06-08 | Hilti Ag | Elektrowerkzeuggerät |
EP1674211A1 (fr) * | 2004-12-23 | 2006-06-28 | BLACK & DECKER INC. | Carter pour un outil motorisé |
ATE396838T1 (de) | 2004-12-23 | 2008-06-15 | Black & Decker Inc | Kraftwerkzeuggehäuse |
GB0428210D0 (en) * | 2004-12-23 | 2005-01-26 | Black & Decker Inc | Mode change mechanism |
EP1674213B1 (fr) * | 2004-12-23 | 2008-10-01 | BLACK & DECKER INC. | Outil motorisé avec un dispositif de refroidissement |
EP1674214B1 (fr) * | 2004-12-23 | 2008-05-28 | BLACK & DECKER INC. | Boitier pour outil à main motorisé |
DE102005007546A1 (de) * | 2005-02-18 | 2006-08-24 | Robert Bosch Gmbh | Elektrowerkzeugmaschine |
DE102005007545B4 (de) * | 2005-02-18 | 2019-01-31 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Kühlung einer Elektronik |
JP4742613B2 (ja) * | 2005-02-24 | 2011-08-10 | マックス株式会社 | ドリル工具 |
DE102005000018A1 (de) * | 2005-03-07 | 2006-09-14 | Hilti Ag | Vorsatzgerät |
DE102005047353A1 (de) * | 2005-10-04 | 2007-04-05 | Robert Bosch Gmbh | Elektrowerkzeugmaschine |
DE102005052428B4 (de) * | 2005-11-03 | 2015-06-18 | Robert Bosch Gmbh | Elektrowerkzeugmaschine |
DE102006000162A1 (de) * | 2006-04-06 | 2007-10-11 | Hilti Ag | Elektrohandwerkzeugmaschine mit internem Kühlgebläse |
DE102006000209A1 (de) * | 2006-05-05 | 2007-11-15 | Hilti Ag | Handwerkzeugmaschine mit Schlagwerkzeugaufnahme |
DE102006000253A1 (de) * | 2006-05-30 | 2007-12-06 | Hilti Ag | Schlagende Handwerkzeugmaschine mit axial beweglich gelagertem Schlagwerk |
DE102006061627A1 (de) * | 2006-12-27 | 2008-07-10 | Robert Bosch Gmbh | Schlagwerk einer Elektrohandwerkzeugmaschine |
DE102007000290A1 (de) * | 2007-05-24 | 2008-11-27 | Hilti Aktiengesellschaft | Elektrisches Handwerkzeuggerät mit Elektronikkühlung |
JP5013314B2 (ja) * | 2007-06-18 | 2012-08-29 | 日立工機株式会社 | 電動工具 |
US7806201B2 (en) * | 2007-07-24 | 2010-10-05 | Makita Corporation | Power tool with dynamic vibration damping |
JP5128390B2 (ja) * | 2008-07-03 | 2013-01-23 | 株式会社マキタ | ハンマードリル |
JP5416397B2 (ja) * | 2008-12-19 | 2014-02-12 | 株式会社マキタ | 作業工具 |
JP5361504B2 (ja) * | 2009-04-10 | 2013-12-04 | 株式会社マキタ | 打撃工具 |
DE102009045799A1 (de) * | 2009-10-19 | 2011-05-12 | Robert Bosch Gmbh | Werkzeugmaschine und Verfahren zur Kühlung einer Werkzeugmaschine |
DE102010031274B4 (de) * | 2009-12-18 | 2023-06-22 | Robert Bosch Gmbh | Handwerkzeugmaschine mit Kühlung des Getriebes |
JP5428848B2 (ja) * | 2009-12-25 | 2014-02-26 | 日立工機株式会社 | 電動工具 |
JP5502458B2 (ja) | 2009-12-25 | 2014-05-28 | 株式会社マキタ | 打撃工具 |
DE102010004723A1 (de) * | 2010-01-15 | 2011-07-21 | Wacker Neuson SE, 80809 | Bohr- und/oder Schlaghammer mit Freikonvektions-Kühlung |
DE102010004724A1 (de) * | 2010-01-15 | 2011-07-21 | Wacker Neuson SE, 80809 | Bohr- und/oder Schlaghammer mit Kühlung von Gerätekomponenten |
JP5496812B2 (ja) * | 2010-08-03 | 2014-05-21 | 株式会社マキタ | 作業工具 |
WO2012117870A1 (fr) * | 2011-02-28 | 2012-09-07 | 株式会社マキタ | Outil de coupe |
US8348727B2 (en) * | 2011-05-26 | 2013-01-08 | Black & Decker Inc. | Airflow arrangement for a power tool |
FR2979562B1 (fr) * | 2011-09-02 | 2013-09-20 | Mbh Dev | Dispositif a moteur electrique avec circuit de refroidissement integre pour la commande d'outils |
DE102013204985A1 (de) * | 2013-03-21 | 2014-10-09 | Robert Bosch Gmbh | Handwerkzeugmaschine |
JP6085225B2 (ja) | 2013-06-27 | 2017-02-22 | 株式会社マキタ | ネジ締め電動工具 |
EP2848370A1 (fr) * | 2013-09-12 | 2015-03-18 | HILTI Aktiengesellschaft | Machine-outil manuelle |
USD725981S1 (en) | 2013-10-29 | 2015-04-07 | Black & Decker Inc. | Screwdriver with nosepiece |
US20150151424A1 (en) | 2013-10-29 | 2015-06-04 | Black & Decker Inc. | Power tool with ergonomic handgrip |
EP3074184A2 (fr) * | 2013-11-26 | 2016-10-05 | Hitachi Koki Co., Ltd. | Outil électrique |
JP6258093B2 (ja) * | 2014-03-24 | 2018-01-10 | 株式会社マキタ | 打撃工具 |
CN106573369B (zh) * | 2014-08-29 | 2020-03-17 | 工机控股株式会社 | 电动工作机 |
DE102015226085A1 (de) * | 2015-12-18 | 2017-06-22 | Robert Bosch Gmbh | Handwerkzeugmaschine mit einer Schalteinheit |
CN213259295U (zh) | 2017-10-20 | 2021-05-25 | 米沃奇电动工具公司 | 用于通过凿子在工件上执行开凿操作的冲击工具 |
US11059155B2 (en) | 2018-01-26 | 2021-07-13 | Milwaukee Electric Tool Corporation | Percussion tool |
JP7229807B2 (ja) * | 2019-02-21 | 2023-02-28 | 株式会社マキタ | 電動工具 |
US11931878B2 (en) | 2019-08-27 | 2024-03-19 | Ingersoll-Rand Industrial U.S., Inc. | Quick change auxiliary handle for power tool |
US11919141B2 (en) | 2019-08-27 | 2024-03-05 | Ingersoll-Rand Industrial U.S., Inc. | Tool with wireless switch |
US11845168B2 (en) * | 2019-11-01 | 2023-12-19 | Makita Corporation | Reciprocating tool |
US11897112B2 (en) | 2020-11-03 | 2024-02-13 | Ingersoll-Rand Industrial U.S., Inc. | Power tool with fan duct for printed circuit board |
GB2619018A (en) * | 2022-05-23 | 2023-11-29 | Black & Decker Inc | Power tool |
EP4331775A1 (fr) * | 2022-08-29 | 2024-03-06 | Hilti Aktiengesellschaft | Machine-outil avec un dispositif de cloisonnement |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2155082A (en) * | 1937-03-23 | 1939-04-18 | Black & Decker Mfg Co | Portable electric tool and casing |
US2517882A (en) * | 1947-08-11 | 1950-08-08 | Johnson Moses | Illuminated hand held motor tool |
US2456571A (en) * | 1947-09-13 | 1948-12-14 | Singer Mfg Co | Portable electric tool |
NL8801466A (nl) * | 1988-06-07 | 1990-01-02 | Emerson Electric Co | Inrichting voor het aandrijven van een boor- en/of slaggereedschap. |
DE3824234A1 (de) * | 1988-07-16 | 1990-01-25 | Bosch Gmbh Robert | Handwerkzeugmaschine mit durchzugsbelueftetem antriebsmotor |
DE19600339C1 (de) * | 1996-01-08 | 1996-12-19 | Kress Elektrik Gmbh & Co | Handwerkzeug |
DE19626254A1 (de) * | 1996-06-29 | 1998-01-08 | Bosch Gmbh Robert | Elektrohandwerkzeugmaschine |
DE19839963A1 (de) * | 1998-09-02 | 2000-03-09 | Hilti Ag | Elektrowerkzeug |
JP2000153473A (ja) * | 1998-11-19 | 2000-06-06 | Makita Corp | 打撃工具 |
DE19924552A1 (de) * | 1999-05-28 | 2000-11-30 | Hilti Ag | Elektrisch betreibbares Handgerät |
-
2001
- 2001-10-15 DE DE50112450T patent/DE50112450D1/de not_active Expired - Lifetime
- 2001-10-15 EP EP01811005A patent/EP1302281B1/fr not_active Expired - Lifetime
- 2001-10-15 AT AT01811005T patent/ATE361182T1/de not_active IP Right Cessation
-
2002
- 2002-10-11 CN CN02146822.2A patent/CN1411959A/zh active Pending
- 2002-10-14 PL PL356629A patent/PL203191B1/pl unknown
- 2002-10-15 JP JP2002300498A patent/JP2003165073A/ja active Pending
- 2002-10-15 US US10/270,940 patent/US6776245B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2003165073A (ja) | 2003-06-10 |
EP1302281A1 (fr) | 2003-04-16 |
PL203191B1 (pl) | 2009-09-30 |
US6776245B2 (en) | 2004-08-17 |
DE50112450D1 (de) | 2007-06-14 |
ATE361182T1 (de) | 2007-05-15 |
US20030070823A1 (en) | 2003-04-17 |
PL356629A1 (en) | 2003-04-22 |
CN1411959A (zh) | 2003-04-23 |
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