EP0856383A3 - Hand held power tool with fan rotor - Google Patents

Hand held power tool with fan rotor Download PDF

Info

Publication number
EP0856383A3
EP0856383A3 EP97118418A EP97118418A EP0856383A3 EP 0856383 A3 EP0856383 A3 EP 0856383A3 EP 97118418 A EP97118418 A EP 97118418A EP 97118418 A EP97118418 A EP 97118418A EP 0856383 A3 EP0856383 A3 EP 0856383A3
Authority
EP
European Patent Office
Prior art keywords
power tool
hand held
held power
fan rotor
fan wheel
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
Application number
EP97118418A
Other languages
German (de)
French (fr)
Other versions
EP0856383B1 (en
EP0856383A2 (en
Inventor
Rudolf Fuchs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0856383A2 publication Critical patent/EP0856383A2/en
Publication of EP0856383A3 publication Critical patent/EP0856383A3/en
Application granted granted Critical
Publication of EP0856383B1 publication Critical patent/EP0856383B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

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)

Abstract

Es wird eine Handwerkzeugmaschine, insbesondere ein Bohrhammer, vorgeschlagen, die mit einem Antriebsmotor (12), mit einer vom Antriebsmotor (12) angetriebenen Motorwelle (13) und mit einem ebenfalls vom Antriebsmotor (12) angetriebenen Gebläse (18) mit Lüfterrad (19) versehen ist. Das Lüfterrad (19) ist dabei über ein Lager (20) gegenüber der Motorwelle (13) drehbar gelagert. Zwischen Motorwelle (13) und Lüfterrad (19) ist ein Übersetzungsgetriebe (21) vorgesehen, durch das die Drehzahl des Lüfterrads (19) gegenüber der Drehzahl der Motorwelle (13) erhöht werden kann.

Figure 00000001
A handheld power tool, in particular a rotary hammer, is proposed, which has a drive motor (12), a motor shaft (13) driven by the drive motor (12) and a fan (18) with a fan wheel (19) also driven by the drive motor (12). is provided. The fan wheel (19) is rotatably mounted relative to the motor shaft (13) via a bearing (20). A transmission gear (21) is provided between the motor shaft (13) and the fan wheel (19), by means of which the speed of the fan wheel (19) can be increased compared to the speed of the motor shaft (13).
Figure 00000001
EP97118418A 1996-12-18 1997-10-23 Hand held power tool with fan rotor Expired - Lifetime EP0856383B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19652751 1996-12-18
DE19652751A DE19652751C2 (en) 1996-12-18 1996-12-18 Hand machine tool with a blower

Publications (3)

Publication Number Publication Date
EP0856383A2 EP0856383A2 (en) 1998-08-05
EP0856383A3 true EP0856383A3 (en) 1999-04-07
EP0856383B1 EP0856383B1 (en) 2003-03-19

Family

ID=7815184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97118418A Expired - Lifetime EP0856383B1 (en) 1996-12-18 1997-10-23 Hand held power tool with fan rotor

Country Status (2)

Country Link
EP (1) EP0856383B1 (en)
DE (2) DE19652751C2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004055268A1 (en) * 2004-11-17 2006-05-18 Robert Bosch Gmbh Hand tool
US7717192B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode drill with mode collar
US7770660B2 (en) 2007-11-21 2010-08-10 Black & Decker Inc. Mid-handle drill construction and assembly process
US7762349B2 (en) 2007-11-21 2010-07-27 Black & Decker Inc. Multi-speed drill and transmission with low gear only clutch
US7798245B2 (en) 2007-11-21 2010-09-21 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US7735575B2 (en) 2007-11-21 2010-06-15 Black & Decker Inc. Hammer drill with hard hammer support structure
US7717191B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode hammer drill with shift lock
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
DE102013000374A1 (en) * 2013-01-11 2014-07-17 Festool Group Gmbh & Co. Kg Hand machine tool with a fan wheel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964638C (en) * 1955-12-02 1957-05-23 Mafell Maschinenfabrik Inh Dip Portable, electric motor driven woodworking machine
US5311089A (en) * 1992-06-19 1994-05-10 Robert Bosch Gmbh Hand machine tool

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3824234A1 (en) * 1988-07-16 1990-01-25 Bosch Gmbh Robert HAND MACHINE TOOL WITH DRAFT VENTILATED DRIVE MOTOR
DE4231985A1 (en) * 1992-09-24 1994-03-31 Bosch Gmbh Robert Hammer and / or percussion hammer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964638C (en) * 1955-12-02 1957-05-23 Mafell Maschinenfabrik Inh Dip Portable, electric motor driven woodworking machine
US5311089A (en) * 1992-06-19 1994-05-10 Robert Bosch Gmbh Hand machine tool

Also Published As

Publication number Publication date
DE59709567D1 (en) 2003-04-24
EP0856383B1 (en) 2003-03-19
EP0856383A2 (en) 1998-08-05
DE19652751C2 (en) 1999-08-19
DE19652751A1 (en) 1998-06-25

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