EP0856383B1 - Outil à main motorisé avec ventilateur - Google Patents
Outil à main motorisé avec ventilateur Download PDFInfo
- Publication number
- EP0856383B1 EP0856383B1 EP97118418A EP97118418A EP0856383B1 EP 0856383 B1 EP0856383 B1 EP 0856383B1 EP 97118418 A EP97118418 A EP 97118418A EP 97118418 A EP97118418 A EP 97118418A EP 0856383 B1 EP0856383 B1 EP 0856383B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- motor shaft
- power tool
- hand held
- held power
- 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
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/008—Cooling means
Definitions
- the invention is based on a hand machine tool the preamble of claim 1. It is already a hand machine tool known (DE-A-42 31 985), in which a fan wheel for cooling the drive motor in a rotationally fixed manner on the motor shaft is arranged. The speed of the fan wheel corresponds to this the engine speed. To achieve sufficient funding the fan wheel must pass through the fan accordingly be designed large, which requires a large amount of space.
- the hand tool according to the invention with the features of claim 1 has the advantage that the fan in comparison can be operated to drive different speeds is.
- the fan can be compared with one the engine speed operate at higher speed, whereby with the same size, a higher suction or blowing power or a smaller design with the same suction or blowing power is made possible.
- a higher fan speed is, for example then advantageous if in the event of an overload at low Engine speed requires a high cooling capacity is.
- FIG. 1 shows a partial section of a rotary hammer as an example of a hand tool according to the invention
- FIG. 2 shows the drive part of FIG Hand tool according to Figure 1.
- 10 denotes a rotary hammer, which as Example of a hand tool according to the invention serves.
- the hammer drill 10 has a housing 11 in which a drive motor 12 is housed. By the drive motor 12 a motor shaft 13 can be driven in rotation. On your tool side The end is the motor shaft 13 with a pinion 15 provided that in engagement with a not shown Gearbox stands, the drive torque on a Not shown drilling spindle and / or on a likewise transmits percussion not shown.
- the Motor shaft 13 is via a roller bearing 16 opposite the housing 11 of the rotary hammer 10 rotatably mounted.
- a fan 18 is provided for cooling the drive motor 12, which has a fan wheel 19.
- the fan wheel 19 is on the motor shaft 13 between the drive motor 12 and the roller bearing 16 arranged and opposite this by means of a bearing 20 rotatably mounted.
- Motor shaft 13 and fan wheel 19 are standing via a transmission shown only in principle in FIG. 1 21 in operative connection.
- FIG 2 the drive part of the hammer drill 10 is closer shown.
- the drive motor 12 faces the motor shaft 13 facing away from a collector 24.
- On the tool side the roller bearing 16 can be seen, via which the motor shaft 13 is rotatably supported relative to the housing 11.
- the fan wheel is between the drive motor 12 and the roller bearing 16 19 arranged and via the bearing 20 on the motor shaft 13 rotatably mounted.
- the gear 21 is in the example as Belt drive trained.
- a first cord 21a connects the shaft 13 with an intermediate gear 25, which is on a housing-fixed pin 26 rotatable via a needle bearing 27 is stored.
- a second cord 21b connects this Intermediate wheel 25 with a rotationally fixedly connected to the fan wheel 19 Drive wheel 28.
- the gear 21 Speed of the fan wheel 19 compared to the speed of the motor shaft 13 increased. In this way, the suction or Blowing power of the blower 18 compared to conventionally arranged Increase fan.
- the transmission 21 can also be used as a gear transmission, for example, designed as a planetary gear his. Of course, other embodiments are also possible from translation gears.
- the blower 18 can also be used as a suction fan for removed material, for example Drilling dust can be used.
- the invention is basically with all hand machine tools, such as drills, Grinder, saws etc. applicable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Power Tools In General (AREA)
- Drilling And Boring (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Claims (4)
- Machine-outil à main comportant un moteur (12), un arbre moteur (13) entraíné par le moteur (12) et un ventilateur (18) avec un rotor (19) également entraíné par le moteur (12),
caractérisée en ce que
le rotor (19) du ventilateur est monté sur l'arbre (13) du moteur en pouvant tourner vis à vis de ce dernier. - Machine-outil à main comportant un moteur selon la revendication 1,
caractérisée en ce que
le rotor (19) du ventilateur est couplé à l'arbre (13) du moteur par une transmission (21). - Machine-outil à main comportant un moteur selon la revendication 2,
caractérisée en ce que
la transmission (21) est une transmission démultiplicatrice. - Machine-outil à main comportant un moteur selon la revendication 2 ou 3,
caractérisée en ce que
la transmission (21) est constituée par un entraínement à courroie.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19652751A DE19652751C2 (de) | 1996-12-18 | 1996-12-18 | Handwerkzeugmaschine mit einem Gebläse |
DE19652751 | 1996-12-18 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0856383A2 EP0856383A2 (fr) | 1998-08-05 |
EP0856383A3 EP0856383A3 (fr) | 1999-04-07 |
EP0856383B1 true EP0856383B1 (fr) | 2003-03-19 |
Family
ID=7815184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97118418A Expired - Lifetime EP0856383B1 (fr) | 1996-12-18 | 1997-10-23 | Outil à main motorisé avec ventilateur |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0856383B1 (fr) |
DE (2) | DE19652751C2 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7717191B2 (en) | 2007-11-21 | 2010-05-18 | Black & Decker Inc. | Multi-mode hammer drill with shift lock |
US7717192B2 (en) | 2007-11-21 | 2010-05-18 | Black & Decker Inc. | Multi-mode drill with mode collar |
US7735575B2 (en) | 2007-11-21 | 2010-06-15 | Black & Decker Inc. | Hammer drill with hard hammer support structure |
US7762349B2 (en) | 2007-11-21 | 2010-07-27 | Black & Decker Inc. | Multi-speed drill and transmission with low gear only clutch |
US7770660B2 (en) | 2007-11-21 | 2010-08-10 | Black & Decker Inc. | Mid-handle drill construction and assembly process |
US7798245B2 (en) | 2007-11-21 | 2010-09-21 | Black & Decker Inc. | Multi-mode drill with an electronic switching arrangement |
US7854274B2 (en) | 2007-11-21 | 2010-12-21 | Black & Decker Inc. | Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004055268A1 (de) * | 2004-11-17 | 2006-05-18 | Robert Bosch Gmbh | Handwerkzeugmaschine |
DE102013000374A1 (de) * | 2013-01-11 | 2014-07-17 | Festool Group Gmbh & Co. Kg | Hand-Werkzeugmaschine mit einem Lüfterrad |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE964638C (de) * | 1955-12-02 | 1957-05-23 | Mafell Maschinenfabrik Inh Dip | Tragbare, elektromotorisch angetriebene Holzbearbeitungsmaschine |
DE3824234A1 (de) * | 1988-07-16 | 1990-01-25 | Bosch Gmbh Robert | Handwerkzeugmaschine mit durchzugsbelueftetem antriebsmotor |
DE4220078A1 (de) * | 1992-06-19 | 1993-12-23 | Bosch Gmbh Robert | Handwerkzeugmaschine |
DE4231985A1 (de) * | 1992-09-24 | 1994-03-31 | Bosch Gmbh Robert | Bohr- und/oder Schlaghammer |
-
1996
- 1996-12-18 DE DE19652751A patent/DE19652751C2/de not_active Expired - Fee Related
-
1997
- 1997-10-23 DE DE59709567T patent/DE59709567D1/de not_active Expired - Lifetime
- 1997-10-23 EP EP97118418A patent/EP0856383B1/fr not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7717191B2 (en) | 2007-11-21 | 2010-05-18 | Black & Decker Inc. | Multi-mode hammer drill with shift lock |
US7717192B2 (en) | 2007-11-21 | 2010-05-18 | Black & Decker Inc. | Multi-mode drill with mode collar |
US7735575B2 (en) | 2007-11-21 | 2010-06-15 | Black & Decker Inc. | Hammer drill with hard hammer support structure |
US7762349B2 (en) | 2007-11-21 | 2010-07-27 | Black & Decker Inc. | Multi-speed drill and transmission with low gear only clutch |
US7770660B2 (en) | 2007-11-21 | 2010-08-10 | Black & Decker Inc. | Mid-handle drill construction and assembly process |
US7798245B2 (en) | 2007-11-21 | 2010-09-21 | Black & Decker Inc. | Multi-mode drill with an electronic switching arrangement |
US7854274B2 (en) | 2007-11-21 | 2010-12-21 | Black & Decker Inc. | Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing |
US7987920B2 (en) | 2007-11-21 | 2011-08-02 | Black & Decker Inc. | Multi-mode drill with mode collar |
US8109343B2 (en) | 2007-11-21 | 2012-02-07 | Black & Decker Inc. | Multi-mode drill with mode collar |
Also Published As
Publication number | Publication date |
---|---|
EP0856383A3 (fr) | 1999-04-07 |
DE59709567D1 (de) | 2003-04-24 |
DE19652751C2 (de) | 1999-08-19 |
DE19652751A1 (de) | 1998-06-25 |
EP0856383A2 (fr) | 1998-08-05 |
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