EP1075912B1 - Outil à main motorisé à au moins une poignée creuse - Google Patents

Outil à main motorisé à au moins une poignée creuse Download PDF

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Publication number
EP1075912B1
EP1075912B1 EP00117147A EP00117147A EP1075912B1 EP 1075912 B1 EP1075912 B1 EP 1075912B1 EP 00117147 A EP00117147 A EP 00117147A EP 00117147 A EP00117147 A EP 00117147A EP 1075912 B1 EP1075912 B1 EP 1075912B1
Authority
EP
European Patent Office
Prior art keywords
handle
hand tool
cooling
tool according
inlet aperture
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
Application number
EP00117147A
Other languages
German (de)
English (en)
Other versions
EP1075912A3 (fr
EP1075912A2 (fr
Inventor
Carsten Ziegs
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.)
Makita Engineering Germany GmbH
Original Assignee
Dolmar 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 Dolmar GmbH filed Critical Dolmar GmbH
Publication of EP1075912A2 publication Critical patent/EP1075912A2/fr
Publication of EP1075912A3 publication Critical patent/EP1075912A3/fr
Application granted granted Critical
Publication of EP1075912B1 publication Critical patent/EP1075912B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0008—Means for carrying the chain saw, e.g. handles

Definitions

  • the invention relates to a motor-operated hand tool, in particular Motor or chain saw, with at least one handle, which is hollow is formed, and a drive motor, in particular an internal combustion engine or an electric motor, wherein a fluid cooling for the Internal combustion engine is provided with a cooling fluid flow, according to the Preamble of claim 1.
  • a power chain saw holding a handle with sucked Air and exhaust warms up is known from DE 1 628 927.
  • the object of the present invention is an improved hand tool to provide the above type, which is the above Disadvantages eliminated and thus at low temperatures the danger permanent damage to circulatory disorders Avoids hands of an operator.
  • This task is performed by a hand tool of the o.g. Kind of claim 1 marked features solved.
  • the handle at least an inlet opening and at least one outlet opening, wherein the inlet opening and the outlet opening are arranged such that the cooling fluid flow downstream of the drive motor via the inlet opening in enters the handle, over a predetermined section through the Handle flows and over the outlet opening again from the handle exit.
  • the fluid cooling is air cooling and the cooling fluid flow is a cooling air flow.
  • a simple and inexpensive construction is achieved by the fact that in the cooling air flow downstream of the drive motor adjacent to the handle arranged to the inlet opening mounted air guide so and is configured such that the cooling air flow at least partially from the Detected air guide and directed into the inlet opening on the handle becomes.
  • This louver is formed for example as a baffle and attached to the handle or plugged or snapped.
  • the fluid cooling is a water cooling and the cooling fluid flow a cooling water flow.
  • a simple control of the strength of the handle heating or a temperature achieved on the handle characterized in that a first slide for optional Opening, partially opening or closing the inlet opening and / or a second slider for selective opening, partially open or closing the outlet opening is provided.
  • the handle is a bow handle or all-round grip and For example, designed as a metal pipe handle or plastic.
  • a device for guiding the cooling air flow downstream of the drive motor to the inlet opening in a tank-handle system integrated trained.
  • the chain saw shown in various embodiments of FIG. 1 to 7 100, 200, 300, 400 comprises a bow handle 10, a rear one Handle 11, an internal combustion engine 12 and a hand guard 14 (Fig. 1 to 4).
  • an air guide 16/17 is provided which a cooling air flow 18th downstream of the engine 12, i. an airflow 18, which already Absorbed heat from the internal combustion engine 12 and transported away, to an inlet opening 20 passes.
  • Embodiment 100 300 is the louver 16 and the Air inlet into the bow handle 10 integrated into a fuel tank handle system 32, whereas in the embodiment 200 shown in Figs. 2 and 3, the spoiler 16 is formed as a separate air baffle, which on the bow handle 10 is attached or molded onto the bow handle.
  • an adjusting element 24 is additionally provided, which in FIG. 5 visible inlet opening 20 on the bow handle 10 by movement in the direction of the arrow 25 either closes, partially opens or completely opens.
  • this actuator 24 can by appropriate choice of its position the temperature or heat output at the bow handle 10 can be adjusted.
  • the actuator 24 In the position shown in Fig. 4, the actuator 24 is in the position "fully open", with a maximum heat output on the bow handle 10 is available.
  • an additional screw 26 is provided, which a additional support and storage of the bow handle 10 available provides.
  • Corresponding ribs 28 (FIG. 5) serve as chip protection in front of the Inlet opening 20.
  • the engine 12th coming cooling air 18 through the bow handle 10 therethrough is the latter warmed up, so that the likelihood of the "white-finger disease" is substantially reduced, without additional components, such as generator, electrical heating conductor, wiring etc.
  • the louver 16 is provided as an air catcher, which at least a portion of heated cooling air 18 in the bow handle 10 redirects.
  • the air 18 occurs e.g. on the magnet side at the bottom Outlet opening 22 (Fig. 1).
  • the handle heating according to the invention is both with a bow handle 10 as a metal tube as well as with a Plastic manufactured bow handle 10 can be realized.
  • the inlet opening 20 and the outlet opening 22 for example, by radial, mechanical post-processing brought in.
  • the openings 20, 22 by attachments, such as a metal casting realized.
  • the inlet and outlet openings 20, 22 in the tank 32 to integrate, in which case the cooling air flow 18 preferably axially into the metal tube handle 10 is initiated.
  • heating takes place the rear handle 11 of the chain saw 400.
  • the occurs by waste heat heated air flow 18 into the inlet opening 20 a is through the air duct 13 through the rear handle 11 to the outlet opening 22 led.
  • the air duct 13 is in the fuel tank-handle system 32 integrated.
  • the rotatable actuator 24 for the setting of the heating power shown in the different Options for the heating capacities, which are indicated by the symbol positions 30 are marked, snaps.
  • the opening and closing of the air duct 13 takes place by turning the adjusting element 24th

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Power Tools In General (AREA)
  • Sawing (AREA)

Claims (9)

  1. Outil motorisé à main (100, 200, 300, 400), en particulier tronçonneuse à moteur ou à chaíne, comprenant une ou plusieurs poignées (10, 11), de configuration creuse, et un moteur d'entraínement (12), en particulier un moteur à combustion interne ou un moteur électrique, du type selon lequel au moins l'une des poignées (10, 11) présente au moins une ouverture d'entrée (20) et au moins une ouverture de sortie (22),
    caractérisé en ce qu'un refroidissement par fluide pour le moteur d'entraínement (12) est prévu par un courant de fluide de refroidissement (18) et en ce que l'ouverture d'entrée (20) et l'ouverture de sortie (22) sont disposées de telle sorte que le courant de fluide de refroidissement (18) du moteur pénètre dans la poignée (10, 11) via l'ouverture d'entrée (20), circule via une section prédéterminée à travers la poignée (10, 11) et ressort de la poignée (10, 11) via l'ouverture de sortie (22).
  2. Outil à main selon la revendication 1,
    caractérisé en ce que
    le refroidissement par fluide est un refroidissement à air et en ce que le courant de refroidissement par fluide est un courant d'air de refroidissement (18).
  3. Outil à main selon la revendication 2,
    caractérisé en ce que
    dans le courant (18) en aval du moteur à combustion interne, un dispositif de guidage d'air (16), qui est fixé à la poignée au voisinage de l'ouverture d'entrée (20) et qui est en particulier une tôle de guidage d'air, est disposé et configuré de telle sorte que le courant d'air de refroidissement (18) pénètre dans l'ouverture d'entrée (20) située sur la poignée (10, 11) en étant au moins partiellement guidé par le dispositif de guidage d'air.
  4. Outil à main selon la revendication 3,
    caractérisé en ce que
    le dispositif de guidage d'air (16) est emmanché, inséré, pincé ou conformé sur la poignée (10).
  5. Outil à main selon la revendication 1,
    caractérisé en ce que
    le refroidissement par fluide est un refroidissement par eau et en ce que le courant de fluide de refroidissement est un courant d'eau de refroidissement.
  6. Outil à main selon l'une des revendications précédentes,
    caractérisé en ce que
    au moins un élément de réglage (24) est prévu afin d'ouvrir, d'ouvrir partiellement ou d'obturer au choix l'ouverture d'entrée (20) et/ou l'ouverture de sortie (22).
  7. Outil à main selon l'une des revendications précédentes,
    caractérisé en ce que
    la poignée (10) est une poignée formant monture ou une poignée circulaire enveloppante.
  8. Outil à main selon l'une des revendications précédentes,
    caractérisé en ce que
    la poignée (10) est configurée sous forme de poignée en tube métallique ou en plastique.
  9. Outil à main selon l'une des revendications précédentes,
    caractérisé en ce que
    un dispositif (16) pour l'amenée du courant de fluide de refroidissement (18) en aval du moteur d'entraínement (12) vers l'ouverture d'entrée (20) est configuré en étant intégré dans un système réservoir-poignée (32), en particulier un réservoir à fluide de service, tel que par exemple un réservoir de carburant ou de lubrifiant.
EP00117147A 1999-08-12 2000-08-10 Outil à main motorisé à au moins une poignée creuse Expired - Lifetime EP1075912B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29914164U DE29914164U1 (de) 1999-08-12 1999-08-12 Motorbetriebenes Handwerkzeug
DE29914164U 1999-08-12

Publications (3)

Publication Number Publication Date
EP1075912A2 EP1075912A2 (fr) 2001-02-14
EP1075912A3 EP1075912A3 (fr) 2004-01-28
EP1075912B1 true EP1075912B1 (fr) 2005-05-25

Family

ID=8077464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117147A Expired - Lifetime EP1075912B1 (fr) 1999-08-12 2000-08-10 Outil à main motorisé à au moins une poignée creuse

Country Status (3)

Country Link
US (1) US6427641B1 (fr)
EP (1) EP1075912B1 (fr)
DE (1) DE29914164U1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10128188B4 (de) * 2001-06-11 2015-08-20 Andreas Stihl Ag & Co. Tragbares Arbeitsgerät
DE102005036885B4 (de) * 2005-08-05 2015-03-19 Andreas Stihl Ag & Co. Kg Handgeführtes Arbeitsgerät
DE102005047882B4 (de) * 2005-10-06 2017-04-27 Andreas Stihl Ag & Co. Kg Handgeführtes Arbeitsgerät
JP5091399B2 (ja) * 2005-11-15 2012-12-05 ハスクバーナ・ゼノア株式会社 チェーンソウ
CN101641191B (zh) * 2007-04-27 2013-01-02 胡斯华纳有限公司 手持马达驱动工具的把手部分
DE102008011291A1 (de) * 2008-02-27 2009-09-03 Marquardt Gmbh Elektrogerät, insbesondere in der Art eines Elektrohandwerkzeugs
DE102008057405B4 (de) 2008-11-14 2021-09-16 Andreas Stihl Ag & Co. Kg Kühlluftführung an einer Motorkettensäge
JP5196163B2 (ja) * 2008-11-14 2013-05-15 日立工機株式会社 エンジン工具
DE102009017209B4 (de) * 2009-04-09 2011-05-05 Bomag Gmbh Bodenverdichtungsmaschine mit Verbrennungsmotor und verbesserter Luftzuführung
US11413782B2 (en) * 2019-10-18 2022-08-16 Globe (Jiangsu) Co., Ltd Chain saw

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7322585U (de) * 1973-09-27 Stihl A Maschinenfabrik Tragbare Motorkettensäge
US2843164A (en) * 1955-11-01 1958-07-15 James H Marsh Chain saw
DE1628927A1 (de) * 1967-09-22 1971-11-25 Zuendapp Werke Gmbh Motorkettensaege
DE7020398U (de) * 1970-06-02 1970-08-27 Partner Ab Tragbare arbeitsmaschinen, insbesondere kettensaege.
US3855976A (en) * 1973-10-10 1974-12-24 J Notaras Apparatus for controlling the quality of the combustion air of an engine
DE2743043C2 (de) * 1977-09-24 1987-05-14 Fa. Andreas Stihl, 7050 Waiblingen Schwingungsdämpfende Verbindung zwischen einem schwingungsbeaufschlagten Geräteteil und einem griffseitigen Geräteteil für ein tragbares Arbeitsgerät
US4261302A (en) * 1978-10-03 1981-04-14 Textron, Inc. Air cleaning system of internal combustion engine
DE3811788C2 (de) * 1988-04-08 1998-10-01 Stihl Maschf Andreas Bügelförmiger, einstückiger Griff aus Kunststoff
DE3821951A1 (de) * 1988-06-29 1990-01-25 Stihl Maschf Andreas Arbeitsgeraet
DE4033261C2 (de) * 1990-10-19 1995-06-08 Freudenberg Carl Fa Temperaturgesteuerter Kühlkreis einer Verbrennungskraftmaschine
DE4120877C2 (de) * 1991-06-21 1995-03-16 Stihl Maschf Andreas Kühlung für ein von einem Verbrennungsmotor angetriebenes Arbeitsgerät
DE4203355C1 (fr) * 1992-02-06 1993-01-28 Fa. Andreas Stihl, 7050 Waiblingen, De
DE4203885A1 (de) * 1992-02-11 1993-08-12 Stihl Maschf Andreas Handgefuehrtes arbeitsgeraet wie motorkettensaege, trennschleifer o. dgl.
JP2571975Y2 (ja) * 1992-06-26 1998-05-20 株式会社共立 エンジン吸気取入構造
US5419287A (en) * 1992-09-18 1995-05-30 Evans; John W. Engine cooling system and heater circuit therefor
US5345684A (en) * 1993-01-25 1994-09-13 Wci Outdoor Products, Inc. Flexible line trimmer having an anti-vibration handle
DE4345098B4 (de) * 1993-12-31 2011-02-10 Fa. Andreas Stihl Handgeführtes Arbeitsgerät, insbesondere Motorkettensäge
JP2945846B2 (ja) 1995-01-31 1999-09-06 富士ロビン株式会社 携帯用送風機のエンジン冷却風導風構造

Also Published As

Publication number Publication date
DE29914164U1 (de) 2001-01-04
EP1075912A3 (fr) 2004-01-28
US6427641B1 (en) 2002-08-06
EP1075912A2 (fr) 2001-02-14

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