EP1968772A1 - Outil electrique manuel - Google Patents

Outil electrique manuel

Info

Publication number
EP1968772A1
EP1968772A1 EP06830042A EP06830042A EP1968772A1 EP 1968772 A1 EP1968772 A1 EP 1968772A1 EP 06830042 A EP06830042 A EP 06830042A EP 06830042 A EP06830042 A EP 06830042A EP 1968772 A1 EP1968772 A1 EP 1968772A1
Authority
EP
European Patent Office
Prior art keywords
housing
power tool
transmission member
drive motor
tool according
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
EP06830042A
Other languages
German (de)
English (en)
Other versions
EP1968772B1 (fr
Inventor
Gabor Papp
Jozsef Dudas
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 EP1968772A1 publication Critical patent/EP1968772A1/fr
Application granted granted Critical
Publication of EP1968772B1 publication Critical patent/EP1968772B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/10—Hand planes equipped with power-driven cutter blocks

Definitions

  • the invention relates to a handgebowtes power tool according to the preamble of claim 1.
  • a hand planer with a housing, a motor and a planer shaft with it can be gripped planer knives, the rotational movement of the drive shaft of the motor is transmitted via a suitable transmission member on the planer shaft.
  • This transfer member is for example a Ubertragungsriemen, which lies within the housing of the planer, wherein the area is covered in the housing with the Ubertragungsriemen of a detachable housing cover.
  • Ventilation slots are introduced into the housing of the planing machine, through which a heat exchange is made possible.
  • a Lufterrad can be used in principle, which is driven by the drive shaft of the engine and via the ventilation slots sucks a Kuhlluftstrom from the environment and leads over the engine.
  • the invention has for its object to improve air cooling in hand-held power tools. Expediently, in addition to the drive motor and gear parts and transmission members, via which the rotational movement of the drive shaft of the electric motor is transmitted to the cutting tool to be cooled with little design effort.
  • the inventive, hand-guided power tool which has an electric drive motor in a housing whose drive shaft is coupled via a transmission member with a rotating cutting tool, has first Einflight openings in the housing, is sucked through the Kuhlluft of the Lucaserrad and guided over the drive motor. Furthermore, additional inflow openings in the housing are provided on the side adjacent to the transmission element, via which cooling air from the environment can also flow into the housing interior for cooling the transmission element or the transmission parts located therein. This region of the housing with the transmission parts or transmission element arranged therein communicates via a connection channel, which is formed in the housing, with the flow path between the first inflow openings and the air wheel.
  • the high mass air flow masses which are guided into the housing of the power tool via both the first and the additional inflow openings, are influenced by the performance of the air impeller and by the geometry of the flow channels and the inflow openings.
  • the first Stromungso réelleen and the additional Stromungso réelleen for bringing the Kuhlluftstromes are arranged in the gear housing receiving housing area on opposite sides of the housing.
  • the communication passage between the first flow space located between the first flow ports and the air wheel and the gear unit receiving area on the opposite side of the housing substantially transverse to the longitudinal axis of the power tool.
  • the connecting channel between the Gehause Scheme with the transmission member and the Stromungsweg between the first Einstromo réelleen and the Heilerrad is seen in the longitudinal direction of the power tool advantageously between the drive shaft of the electric motor and the shaft of the cutting tool. In principle, however, are also positioning of the connecting channel in the axial direction before or behind the area between the drive shaft of the electric motor and the shaft of the cutting tool.
  • the transmission unit facing opening of the connection channel is appropriate in height of and immediately behind the transmission member or the transmission unit and is also the additional Einströmo réelleen opposite, so that the sucked Kuhl Kunststoff is forced to flow along the transmission member or to be cooled transmission unit along.
  • the combined Kuhlluftstrom downstream of the Luftterrades in an air Span channel are sucked off over the removed from the cutting tool chip and transported to the outside.
  • the power tool is an example of a hand planer, wherein the transmission member is a belt between the drive shaft of the electric motor and the planer shaft of the planer blade.
  • the transmission member is a belt between the drive shaft of the electric motor and the planer shaft of the planer blade.
  • it is also an application in other hand tool machines into consideration, in which a movement transmission of the electromotive rotation is performed on a cutting tool by means of a belt or a gear unit.
  • FIG. 1 is a perspective view of a hand planer with drawn air arrows that indicate the direction of flow of Kuhlluftstrome in the housing of the machine
  • FIG. 3 shows a section through the hand planer with illustrated electric drive motor and driven by the drive motor shipserrad that generates a first and a second Kuhlluftstrom
  • Fig. 4 is a further perspective view of
  • Hand planer shown without gear cover with a view of the Ubertragungsriemens between the drive shaft of the electric motor and planer shaft.
  • hand-guided power tool is a hand planer 1, which has an upper handle 2 on a housing 2 and in the front area an additional handle 4, on the same time by turning about its vertical axis, the cutting depth of the hand planer is adjustable.
  • a lateral housing part 5 is a plurality of first Einstromo réelleen 6, which are introduced in the form of air slots in the advantageously made of plastic housing 2 and sucked on a first Kuhlluftstrom from the environment and according to arrow 7 in the housing interior for cooling the electric motor of Hand planer is passed.
  • This first Kuhlluftstrom is sucked in the side and runs transversely to the longitudinal axis of the hand planer.
  • a second Kuhlluftstrom is, as indicated in Fig.
  • the Kuhl povertystrom marked with the arrows 8 includes the first and the second Kuhlluftstrom.
  • the housing part 5 is located opposite the longitudinal axis 11 of the hand planer 1 Side a removable gear cover 10 disposed on the housing 2, wherein the lateral housing part 5 on one side of the housing and the gear cover 10 on the opposite side of the housing are approximately symmetrical to the longitudinal axis 11.
  • gear units or transmission members which are shown in detail in Figs. 3 and 4 and via which the drive movement of the drive shaft 14 of the motor of the hand planer is transmitted to the rotating cutting tool.
  • Both the first Kuhlluftstrom 7 and the second Kuhlluftstrom 9 are generated by a Heilerrad 13 which is rotatably coupled to the drive shaft 14 of the drive motor.
  • the Heilerrad 13 is located in the interior of the housing on the however, the area 16 adjacent to the area covered by the gear cover 10 is separated from the area 16 by an inner housing wall.
  • the Heilerrad 13 generates a negative pressure, whereby the two Kuhlluftstrome 7 and 9 are sucked in via the Einstromo réelleen 6 and 12 respectively.
  • Downstream of the Lufterrades 13 of the Kuhlluftstrom is deflected in the longitudinal direction of the machine to the front part of the housing (arrow 17) and further derived according to a first variant on Abflowo réelleen 19 in the front part of the gear cover 10 as indicated by arrow 18 in the environment or, according to a second Variant, deflected by 180 ° according to arrow 20 in an air-chip channel 21, transported over the removed from the cutting tool of the hand planer chip to the rear portion of the hand planer and derived from the housing 2.
  • the air-chip channel 21 is located inside the main handle 3.
  • the connecting channel 15 lies between the region 16 which is covered by the gear cover 10 and the opposite housing part 5 in the longitudinal direction of the hand planer 1 in front of the gear units 23 protruding into the region 16, so that the second Kuhl povertystrom 9 brought over the additional Einstromo réelleen 12, must stroke immediately past these gear units 23 and this cools. Subsequently, the additional Kuhlluftstrom 9 is passed in the transverse direction through the connecting channel 15 and deflected in the opposite housing part 5 and combined with the first Kuhlluftstrom.
  • the gear units projecting into the region 16 are the end face of the drive shaft 14, around which a transmission belt 24 (FIG. 4) is stretched for movement transmission onto the shaft of the cutting blade.
  • FIG. 4 shows the hand planer 1 in a perspective view with the gear cover removed.
  • the transmission belt 24 can be seen between the drive shaft 14 and the shaft 25 of the cutting tool lying further forward with respect to the longitudinal direction. Entered are also the second Kuhlluftstrom 9, which flows along both the gear units 23 and the Ubertragungsriemen 24 and is then passed through a Mundungso réelle 25 of the connecting channel 15 through this to the opposite side of the machine.
  • FIG. 4 Shown in FIG. 4 is also a housing section 26, which is separated from the region 16, through which the second cooling air flow 9 flows, and has a flow channel for the discharge of the combined cooling air streams downstream of the air wheel.
  • a housing section 26 of the arrow 17 which, as shown in Fig. 2, represents the United Kuhlluftstrom after passing through the Heilerrades.
  • the combined Kuhlluftstrom 17 can be deflected according to arrow 20 in the air-chip channel for discharging the panel, or, alternatively, be derived directly from the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

L'invention concerne un outil électrique manuel, qui comporte un boîtier (2) et un moteur électrique d'entraînement (22) dont l'arbre d'entraînement (14) est accouplé par l'intermédiaire d'un organe de transmission (24) à un outil de coupe rotatif. L'outil comprend une roue (13) de ventilateur entraînée par l'arbre d'entraînement et qui par des premières ouvertures d'admission (6) aspire dans le boîtier de l'air de refroidissement qui est amené au moteur d'entraînement et est évacué du boîtier par des ouvertures d'évacuation (19). Des ouvertures supplémentaires d'admission (12) sont prévues pour l'air de refroidissement sur le côté voisin de l'organe de transmission et la partie (16) située à l'intérieur du boîtier et dans laquelle l'organe de transmission est disposé est reliée par un canal de liaison (15) au parcours d'écoulement qui relie les premières ouvertures d'admission et la roue de ventilateur.
EP06830042A 2005-12-28 2006-11-20 Outil electrique manuel Active EP1968772B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510062697 DE102005062697A1 (de) 2005-12-28 2005-12-28 Handgeführtes Elektrowerkzeug
PCT/EP2006/068639 WO2007077050A1 (fr) 2005-12-28 2006-11-20 Outil electrique manuel

Publications (2)

Publication Number Publication Date
EP1968772A1 true EP1968772A1 (fr) 2008-09-17
EP1968772B1 EP1968772B1 (fr) 2011-02-16

Family

ID=37776799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06830042A Active EP1968772B1 (fr) 2005-12-28 2006-11-20 Outil electrique manuel

Country Status (4)

Country Link
EP (1) EP1968772B1 (fr)
CN (1) CN101351309B (fr)
DE (2) DE102005062697A1 (fr)
WO (1) WO2007077050A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101780680A (zh) * 2010-03-05 2010-07-21 宁波市鄞州稳汀机电科技有限公司 木工用修边刻线机
DE102010030376A1 (de) * 2010-06-23 2011-12-29 Robert Bosch Gmbh Handwerkzeugmaschine
EP2465647A3 (fr) * 2010-12-20 2013-01-16 HILTI Aktiengesellschaft Machine-outil manuelle dotée d'un élément de conduite d'air
DE102013203617B4 (de) 2013-03-04 2023-12-14 Robert Bosch Gmbh Handwerkzeugmaschine
DE102013208705A1 (de) * 2013-05-13 2014-11-13 Robert Bosch Gmbh Handhobelmaschine
JP6127840B2 (ja) * 2013-09-02 2017-05-17 日立工機株式会社 電動工具
JP6238064B2 (ja) * 2013-12-27 2017-11-29 日立工機株式会社 電動かんな
EP2923802A1 (fr) * 2014-03-25 2015-09-30 HILTI Aktiengesellschaft Refroidissement de courroie
DE102014207867A1 (de) * 2014-04-25 2015-10-29 Robert Bosch Gmbh Werkzeugmaschinenkühlungsvorrichtung
CN110605765A (zh) * 2019-11-09 2019-12-24 泰州市汇顶机械制造有限公司 一种便于排屑除尘的电刨

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1943624U (de) * 1966-04-23 1966-08-04 Scheer & Cie C F Handhobelmaschine.
DE3406728A1 (de) * 1984-02-24 1985-08-29 Karl M. Reich Maschinenfabrik GmbH, 7440 Nürtingen Handhobelmaschine
DE19512262C2 (de) * 1995-03-24 2003-07-31 Black & Decker Inc Handgeführter, motorgetriebener Hobel
DE19839963A1 (de) * 1998-09-02 2000-03-09 Hilti Ag Elektrowerkzeug
DE10358027A1 (de) * 2003-12-11 2005-07-21 Hilti Ag Handwerkzeug
GB0428210D0 (en) * 2004-12-23 2005-01-26 Black & Decker Inc Mode change mechanism

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007077050A1 *

Also Published As

Publication number Publication date
DE102005062697A1 (de) 2007-07-12
WO2007077050A1 (fr) 2007-07-12
CN101351309B (zh) 2012-05-23
CN101351309A (zh) 2009-01-21
EP1968772B1 (fr) 2011-02-16
DE502006008927D1 (de) 2011-03-31

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