EP1075912A2 - Motorbetriebenes Handwerkzeug mit wenigstens einem hohl ausgebildeten Handgriff - Google Patents
Motorbetriebenes Handwerkzeug mit wenigstens einem hohl ausgebildeten Handgriff Download PDFInfo
- Publication number
- EP1075912A2 EP1075912A2 EP00117147A EP00117147A EP1075912A2 EP 1075912 A2 EP1075912 A2 EP 1075912A2 EP 00117147 A EP00117147 A EP 00117147A EP 00117147 A EP00117147 A EP 00117147A EP 1075912 A2 EP1075912 A2 EP 1075912A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- handle
- cooling
- hand tool
- opening
- 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
Links
Images
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, with a fluid cooling for the Internal combustion engine with a cooling fluid flow is provided, according to the Preamble of claim 1.
- the object of the present invention is to provide an improved hand tool of the type mentioned above, which the above Disadvantages eliminated and thus the danger at low temperatures of permanent damage to circulatory disorders of the Hands of an operator.
- the handle at least has 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 out of the handle via the outlet opening exit.
- the fluid cooling is air cooling and the cooling fluid flow is a cooling air flow.
- a simple and inexpensive construction can be achieved in that in the cooling air flow downstream of the drive motor one adjacent to the handle Air guiding device attached to the inlet opening is arranged in this way and is designed such that the cooling air flow is at least partially from the Air guiding device detected and passed into the inlet opening on the handle becomes.
- This air baffle is designed, for example, as an air baffle and attached to the handle or plugged or snapped on.
- the fluid cooling a water cooling and the cooling fluid flow a cooling water flow.
- the handle is expediently a bow handle or all-round handle and for example, a metal tube handle or made of plastic.
- the invention is described below with reference to that in FIGS. 1 to 7 Hand tool explained in the form of a chainsaw with an internal combustion engine, this is only to be understood as an example.
- the invention is Can be used with any motor-operated hand tool with a handle, such as for example hedge trimmers, rotary hammers etc.
- the chainsaw shown in different versions according to FIGS. 1 to 7 100, 200, 300, 400 includes a bow handle 10, a rear handle Handle 11, an internal combustion engine 12 and a hand guard 14 (Fig. 1 to 4).
- 100, 200, 300 is an air guiding device 16/17 is provided, which has a cooling air flow 18 downstream of the engine 12, i.e. an air flow 18, which already Has absorbed heat from internal combustion engine 12 and transported it away, leads to an inlet opening 20.
- a cooling air flow 18 downstream of the engine 12 i.e. an air flow 18, which already Has absorbed heat from internal combustion engine 12 and transported it away, leads to an inlet opening 20.
- Embodiment 100, 300 is the air guiding device 16 or the Air inlet in the bow handle 10 integrated in a fuel tank handle system 32, whereas in embodiment 200 according to FIGS. 2 and 3 the air guiding device 16 is designed as a separate air baffle, which on the bow handle 10 is attached or molded onto the bow handle.
- an actuating element 24 is additionally provided, which visible inlet opening 20 on the bow handle 10 by moving in the direction of the arrow 25 either closed, partially opened or fully opened.
- this control element 24 can by appropriate choice of its position the temperature or heat output can be set on the bow handle 10.
- the actuating element 24 In the position shown in FIG. 4, the actuating element 24 is located in the "fully open” position, with a maximum heating output on the bow handle 10 is available.
- on Bow handle 10 provided an additional screw 26, which a additional support and storage of the bow handle 10 available poses.
- Corresponding ribs 28 (FIG. 5) serve as chip protection in front of the Entry opening 20.
- the air guiding device 16 is provided on the bow handle 10 as an air catcher, which at least a portion of heated cooling air 18 in the bow handle 10 redirects The air 18 exits e.g. on the magnet side at the bottom of the Exit opening 22 (Fig. 1).
- the grip heater according to the invention is both with a bow handle 10 as a metal tube and with one Plastic handle handle 10 realized.
- the inlet opening 20 and the outlet opening 22 for example by radial, mechanical finishing brought in.
- the openings 20, 22 are made by attachments, such as a metal casting. It is also possible also the inlet and outlet openings 20, 22 into the tank 32 integrate, in which case the cooling air flow 18 preferably axially into the metal tube handle 10 is initiated.
- the openings 20, 22 are through Reworking, by subsequently moving inserts in the Plastic tool or by one made in the smelting technology Bow handle can be manufactured.
- heating takes place of the rear handle 11 of the chainsaw 400. This occurs air flow 18 heated by waste heat into the inlet opening 20 through the air duct 13 through the rear handle 11 to the outlet opening 22 out.
- the air duct 13 is in the fuel tank handle system 32 integrated.
- the rotatable actuator 24 for the setting of the heating output is shown in the different Choices for the heating outputs that start with the symbol positions 30 are marked, snaps. The opening and closing of the air duct 13 takes place by rotating the control element 24.
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)
Abstract
Description
- Fig. 1
- in schematischer, perspektivischer Darstellung eine erste bevorzugte Ausführungsform bei der Luftführung und Einlaß in den Tank integriert sind
- Fig. 2
- in schematischer, perspektivischer Darstellung eine zweite bevorzugte Ausführungsform bei der Luftführung und Einlaß in den Rundumgriff integriert sind
- Fig. 3
- in schematischen, perspektivischen Darstellung der Version Fig. 2" von der gegenüberliegenden Seite gesehen
- Fig. 4
- in schematischer, perspektivischer Darstellung der Version
- Fig. 5
- in einer weiteren schematischen, perspektivischen Darstellung
der Version
- Fig. 6
- in schematischer, perspektivischer Darstellungen die Beheizung des hinteren Handgriff
- Fig. 7
- in schematischer, perspektivischer Darstellung die Version
- 100,200,300,400
- Kettensäge
- 10
- Bügelgriff
- 11
- hinterer Handgriff
- 12
- Brennkraftmaschine
- 13
- Luftkanal
- 14
- Handschutz
- 16
- Luftleiteinrichtung am Kraftstofftank
- 17
- Luftleitblech/-flügel am Bügelgriff
- 18
- Luftstrom
- 20
- Eintrittsöffnung
- 22
- Austrittsöffnung
- 24
- Stellelement
- 25
- Pfeil
- 26
- zusätzliche Verschraubung
- 28
- Rippen
- 29
- Stellelement
- 30
- Symbolen
- 32
- Kraftstofftank-Griff-System
Claims (9)
- Motorbetriebenes Handwerkzeug (100, 200, 300,400), insbesondere Motor- oder Kettensäge, mit mindestens einem oder mehreren Handgriffen (10, 11), welcher hohl ausgebildet ist, und einem Antriebsmotor (12), insbesondere einer Brennkraftmaschine oder einem Elektromotor, wobei eine Fluidkühlung für den Antriebsmotor 12 mit einem Kühlfluidstrom (18) vorgesehen ist,
dadurch gekennzeichnet, dass
mindestens einer der Handgriffe (10, 11) wenigstens eine Eintrittsöffnung (20) und wenigstens eine Austrittsöffnung (22) aufweist, wobei die Eintrittsöffnung (20) und die Austrittsöffnung (22) derart angeordnet sind, daß der Kühlfluidstrom (18) des Antriebsmotors (12) über die Eintrittsöffnung (20) in den Handgriff (10, 11) eintritt, über einen vorbestimmten Abschnitt durch den Handgriff (10, 11) strömt und über die Austrittsöffnung (22) wieder aus dem Handgriff (10, 11) austritt. - Handwerkzeug nach Anspruch 1,
dadurch gekennzeichnet, dass
die Fluidkühlung eine Luftkühlung und der Kühlfluidstrom ein Kühlluftstrom (18) ist. - Handwerkzeug nach Anspruch 2,
dadurch gekennzeichnet, dass
im Kühlluftstrom (18) stromab der Brennkraftmaschine ein am Handgriff benachbart zu der Eintrittsöffnung (20) befestigte Luftleiteinrichtung (16), insbesondere ein Luftleitblech, derart angeordnet und ausgebildet ist, dass der Kühlluftstrom (18) wenigstens teilweise von der Luftleiteinrichtung geführt in die Eintrittsöffnung (20) am Handgriff (10,11) eintritt. - Handwerkzeug nach Anspruch 3,
dadurch gekennzeichnet, dass
die Luftleiteinrichtung (16) auf den Handgriff (10) aufgesteckt, aufgeschnappt oder angeformt ist. - Handwerkzeug nach Anspruch 1,
dadurch gekennzeichnet, dass
die Fluidkühlung eine Wasserkühlung und der Kühlfluidstrom ein Kühlwasserstrom ist. - Handwerkzeug nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass
mindestens ein Stellelement (24) zum wahlweise Öffnen, teilweise Öffnen oder Verschließen der Eintrittsöffnung (20) und/oder der Austrittsöffnung (22) vorgesehen ist. - Handwerkzeug nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass
der Handgriff (10) ein Bügelgriff oder Rundumgriff ist. - Handwerkzeug nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass
der Handgriff (10) als Metallrohrgriff oder aus Kunststoff ausgebildet ist. - Handwerkzeug nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass
eine Vorrichtung (16) zum Führen des Kühlfluidstromes (18) stromab des Antriebsmotors (12) zu der Eintrittsöffnung (20) in einem Tank-Griff-System (32), insbesondere Betriebsstofftank, wie beispielsweise Kraftstofftank oder Schmieröltank, integriert ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29914164U | 1999-08-12 | ||
DE29914164U DE29914164U1 (de) | 1999-08-12 | 1999-08-12 | Motorbetriebenes Handwerkzeug |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1075912A2 true EP1075912A2 (de) | 2001-02-14 |
EP1075912A3 EP1075912A3 (de) | 2004-01-28 |
EP1075912B1 EP1075912B1 (de) | 2005-05-25 |
Family
ID=8077464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00117147A Expired - Lifetime EP1075912B1 (de) | 1999-08-12 | 2000-08-10 | Motorbetriebenes Handwerkzeug mit wenigstens einem hohl ausgebildeten Handgriff |
Country Status (3)
Country | Link |
---|---|
US (1) | US6427641B1 (de) |
EP (1) | EP1075912B1 (de) |
DE (1) | DE29914164U1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008011291A1 (de) * | 2008-02-27 | 2009-09-03 | Marquardt Gmbh | Elektrogerät, insbesondere in der Art eines Elektrohandwerkzeugs |
CN103009355A (zh) * | 2005-10-06 | 2013-04-03 | 安德烈亚斯.斯蒂尔两合公司 | 手持操作的工作机械 |
Families Citing this family (8)
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 |
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 |
EP2148767B1 (de) | 2007-04-27 | 2017-01-11 | Husqvarna AB | Griffteil für ein in der hand gehaltenes motorgetriebenes werkzeug |
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 |
EP3808519A3 (de) * | 2019-10-18 | 2021-06-30 | Globe (Jiangsu) Co., Ltd. | Kettensäge |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2843164A (en) * | 1955-11-01 | 1958-07-15 | James H Marsh | Chain saw |
DE7020398U (de) * | 1970-06-02 | 1970-08-27 | Partner Ab | Tragbare arbeitsmaschinen, insbesondere kettensaege. |
DE1628927A1 (de) * | 1967-09-22 | 1971-11-25 | Zuendapp Werke Gmbh | Motorkettensaege |
DE7322585U (de) * | 1973-09-27 | Stihl A Maschinenfabrik | Tragbare Motorkettensäge | |
US4236310A (en) * | 1977-09-24 | 1980-12-02 | Andreas Stihl | Portable working implement |
US5345684A (en) * | 1993-01-25 | 1994-09-13 | Wci Outdoor Products, Inc. | Flexible line trimmer having an anti-vibration handle |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3855976A (en) * | 1973-10-10 | 1974-12-24 | J Notaras | Apparatus for controlling the quality of the combustion air of an engine |
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 (de) * | 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 |
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 |
-
1999
- 1999-08-12 DE DE29914164U patent/DE29914164U1/de not_active Expired - Lifetime
-
2000
- 2000-08-10 US US09/636,820 patent/US6427641B1/en not_active Expired - Fee Related
- 2000-08-10 EP EP00117147A patent/EP1075912B1/de not_active Expired - Lifetime
Patent Citations (6)
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. |
US4236310A (en) * | 1977-09-24 | 1980-12-02 | Andreas Stihl | Portable working implement |
US5345684A (en) * | 1993-01-25 | 1994-09-13 | Wci Outdoor Products, Inc. | Flexible line trimmer having an anti-vibration handle |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103009355A (zh) * | 2005-10-06 | 2013-04-03 | 安德烈亚斯.斯蒂尔两合公司 | 手持操作的工作机械 |
DE102008011291A1 (de) * | 2008-02-27 | 2009-09-03 | Marquardt Gmbh | Elektrogerät, insbesondere in der Art eines Elektrohandwerkzeugs |
Also Published As
Publication number | Publication date |
---|---|
EP1075912B1 (de) | 2005-05-25 |
EP1075912A3 (de) | 2004-01-28 |
DE29914164U1 (de) | 2001-01-04 |
US6427641B1 (en) | 2002-08-06 |
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