FI82897C - ANORDNING VID FOERBRAENNINGSMOTORDRIVET REDSKAP MED S.K. RIGGROER, EXEMPELVIS EN ROEJSAOG. - Google Patents
ANORDNING VID FOERBRAENNINGSMOTORDRIVET REDSKAP MED S.K. RIGGROER, EXEMPELVIS EN ROEJSAOG. Download PDFInfo
- Publication number
- FI82897C FI82897C FI874088A FI874088A FI82897C FI 82897 C FI82897 C FI 82897C FI 874088 A FI874088 A FI 874088A FI 874088 A FI874088 A FI 874088A FI 82897 C FI82897 C FI 82897C
- Authority
- FI
- Finland
- Prior art keywords
- tube
- tool
- bearings
- pipe
- internal combustion
- Prior art date
Links
Classifications
-
- 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
- B27B9/00—Portable power-driven circular saws for manual operation
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/835—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes
- A01D34/90—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes for carrying by the operator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/12—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of drives for circular saw blades
- B23D47/126—Angle drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/001—Gas flow channels or gas chambers being at least partly formed in the structural parts of the engine or machine
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1861—Construction facilitating manufacture, assembly, or disassembly the assembly using parts formed by casting or moulding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/06—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hand-held tools or portables devices
Description
1 828971 82897
Laite putkella varustettua polttomoottorikäyttöistä työkalua, esimerkiksi raivaussahaa, vartenDevice for a tubular internal combustion engine driven tool, such as a clearing saw
Esillä oleva keksintö kohdistuu laitteeseen putkella varustettua polttomoottorikäyttöistä työkalua, esimerkiksi raivaussahaa,varten, jossa putken toinen pää on yhdistetty polttomoottoriin, kun taas sen toisessa päässä on työvälinepä jossa putki ympäröi vetoakselia, joka siirtää käyttövoiman moottorista työvälineeseen.The present invention relates to an apparatus for a tubular internal combustion engine driven tool, for example a clearing saw, in which one end of the tube is connected to the internal combustion engine, while at its other end there is a tool blade in which the tube surrounds the drive shaft.
Tällaiset työkalut ovat aikaisemmin tunnettuja, ja niitä käytetään esimerkiksi pensaiden ja vesakkojen raivaamiseen metsässä. Työkalua kannattelevat käyttäjään sijoitetut valjaat siten, että polttomoottori on sijoitettu vyö-tärönkorkeudelle, kun taas putki ulottuu alaspäin ja eteenpäin kohti maata. Lisäksi työkalu on varustettu putken yläosaan sijoitetulla kädensijalla, jonka avulla työkalua ohjataan. Polttomoottorin pakokaasut poistuvat moottorin sijoitetun pakokaasuputken kautta, mikä merkitsee, että pakokaasut poistuvat käyttäjän hengityselimien välittömässä läheisyydessä, mikä luonnollisesti on erittäin epätyydyttävää työympäristön näkökannalta. Lisäksi äänilähteen ja käyttäjän korvien läheisyys aiheuttaa sen, että ne ovat alttiina voimakkaalle melulle.Such tools are previously known and are used, for example, for clearing shrubs and bushes in the forest. The tool is supported by a harness positioned by the user so that the internal combustion engine is positioned at belt-height, while the tube extends downward and forward toward the ground. In addition, the tool is equipped with a handle located at the top of the tube to control the tool. The exhaust gases of an internal combustion engine escape through a located exhaust pipe of the engine, which means that the exhaust gases escape in the immediate vicinity of the user's respiratory system, which is naturally very unsatisfactory from the point of view of the working environment. In addition, the proximity of the sound source and the user's ears causes them to be exposed to loud noise.
Esillä olevan keksinnön tarkoitus on saada aikaan parempi työympäristö käyttäjälle, mikä saavutetaan laitteella, jolla on patenttivaatimuksessa l määritellyt ominaisuudet .The object of the present invention is to provide a better working environment for the user, which is achieved by a device having the features defined in claim 1.
Seuraavaksi kuvataan esillä olevan keksinnön sovellusmuo-to viittaamalla oheistettuihin piirroksiin, joissa kuvio 1 on perspektiivikuva työkalusta, johon esillä olevaa keksintöä on tarkoitus soveltaa, ja kuvio 2 on pitkit- 2 82897 täiEleikkaus kuvion 1 mukaisen työkalun osasta.An embodiment of the present invention will now be described with reference to the accompanying drawings, in which Figure 1 is a perspective view of a tool to which the present invention is to be applied, and Figure 2 is a longitudinal section of a part of the tool of Figure 1.
Kuten kuviosta 1 käy ilmi. työkalu sisältää polttomoottorin 10, joka on kiinnitetty putken 11 yläosaan, ia putkessa on myös kädensija 12, jonka avulla työkalua ohjataan. Putken 11 alaosa kannattelee työvälinettä 13. jonka tässä tapauksessa muodostaa sahanterä, terän päällekvt-kentää ja poissuljentaa sekä pyörimisnopeutta säädeltäes-sä kädensiiässä sijaitsevalla ohjausosalla, iota ei ole kuvattu lähemmin. Työkalua kannattelevat käytön aikana valjaat, joita ei ole kuvattu.As shown in Figure 1. the tool includes an internal combustion engine 10 attached to the top of the tube 11, and the tube also has a handle 12 by means of which the tool is guided. The lower part of the tube 11 supports the tool 13, which in this case is formed by the saw blade, the on-off field of the blade and is excluded and the speed of rotation is controlled by a guide part located in the handle, which is not described in more detail. The tool is supported during use by a harness that is not described.
Putki ympäröi vetoakselia 14. joka siirtää käyttövoiman moottorista 10 työvälineeseen 13 kulmavaihteen 15 kautta, akselin ollessa asennettu pyörimään useiden, putkessa sijaitsevien laakereiden 16. 17. 16 avulla. Laakerit 16 ja 18 muodostavat perinteiset liukulaakerit, jotka toimivat myös tiivisteinä putken sisäosan ja moottorin 10 sekä vastaavasti kulmavaihteen 15 välillä, kun taas yhdessä tai useammassa välissä sijaitsevassa laakerissa 17 on tietty määrä läpivirtausaukkoja 19. jotka yhdistävät kaksi tai useampaa putkeen muodostettua kammiota 20 ja 21 toisiinsa.The tube surrounds a drive shaft 14. which transmits the driving force from the motor 10 to the implement 13 via a bevel gear 15, the shaft being mounted for rotation by means of a plurality of bearings 16. 17. 16 located in the tube. Bearings 16 and 18 form conventional plain bearings which also act as seals between the inner part of the tube and the motor 10 and the bevel gear 15, respectively, while one or more intermediate bearings 17 have a number of flow openings 19 connecting two or more chambers 20 and 21 formed in the tube. .
Putken yläosassa on tuloaukko 22, johon moottorista johtava pakokaasuputki 23 on liitetty kiinnitvshvlsvn 2u avulla. Putken alaosassa sijaitsee useita poistoaukkoja 25, jotka yhdistävät kammion 20 ilmakehään.At the top of the pipe there is an inlet 22 to which the exhaust pipe 23 leading from the engine is connected by means of a fastener 2u. At the bottom of the tube are a plurality of outlets 25 which connect the chamber 20 to the atmosphere.
Laite toimii seuraavalla tavalla.The device works as follows.
Polttomoottorista 10 peräisin olevat pakokaasut johdetaan pakokaasuputken 23 ja aukon 22 kautta putken yläosan kammioon 21. Tämän jälkeen pakokaasut virtaavat alaspäin putkessa ja kulkevat laakerin 17 läpivirtausaukkoien 19 kautta kammioon 20, josta ne poistuvat ilmakehään poisto- li 3 82897 aukkojen 25 kautta.The exhaust gases from the internal combustion engine 10 are led through the exhaust pipe 23 and the opening 22 to the chamber 21 of the upper part of the pipe.
Valitsemalla poistoaukkojen 2S sopiva koko, sopiva määrä välissä sijaitsevia laakereita 17, sopiva etäisyvs lääke-reiden 17, 18 ja 19 välille sekä laakerin 17 läpivirtaus-aukkojen 19 sopiva koko, raivaussaha voidaan säätää siten. että saavutetaan mahdollisimman hyvä äänenvaimennus ja mahdollisimman alhainen vastapaine.By selecting a suitable size of the outlet openings 2S, a suitable number of intermediate bearings 17, a suitable distance between the doctors 17, 18 and 19 and a suitable size of the flow openings 19 of the bearing 17, the clearing saw can thus be adjusted. that the best possible sound attenuation and the lowest possible back pressure are achieved.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8603955A SE462326B (en) | 1986-09-19 | 1986-09-19 | DEVICE FOR A RIGGROER STORED, COMBUSTION ENGINE DRIVING EQUIPMENT EXAMPLE A CUTTING SAW. |
SE8603955 | 1986-09-19 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI874088A0 FI874088A0 (en) | 1987-09-18 |
FI874088A FI874088A (en) | 1988-03-20 |
FI82897B FI82897B (en) | 1991-01-31 |
FI82897C true FI82897C (en) | 1991-05-10 |
Family
ID=20365653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI874088A FI82897C (en) | 1986-09-19 | 1987-09-18 | ANORDNING VID FOERBRAENNINGSMOTORDRIVET REDSKAP MED S.K. RIGGROER, EXEMPELVIS EN ROEJSAOG. |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE3731326A1 (en) |
FI (1) | FI82897C (en) |
GB (1) | GB2197945B (en) |
SE (1) | SE462326B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5774993A (en) * | 1994-10-29 | 1998-07-07 | Andreas Stihl | Hand-held working tool, especially trimmer or edge cutter |
DE19528358C2 (en) * | 1995-08-02 | 1999-09-30 | Stihl Maschf Andreas | Brush cutter |
GB2364352A (en) * | 2000-07-03 | 2002-01-23 | Draftex Ind Ltd | Noise reduction in air conduits; making perforated conduits |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE912031C (en) * | 1951-11-24 | 1954-05-24 | Ernst Wieland | Motorized mower |
-
1986
- 1986-09-19 SE SE8603955A patent/SE462326B/en not_active IP Right Cessation
-
1987
- 1987-09-14 GB GB8721531A patent/GB2197945B/en not_active Expired - Fee Related
- 1987-09-17 DE DE19873731326 patent/DE3731326A1/en active Granted
- 1987-09-18 FI FI874088A patent/FI82897C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3731326A1 (en) | 1988-03-24 |
SE8603955D0 (en) | 1986-09-19 |
FI874088A0 (en) | 1987-09-18 |
FI874088A (en) | 1988-03-20 |
SE462326B (en) | 1990-06-11 |
SE8603955L (en) | 1988-03-20 |
GB8721531D0 (en) | 1987-10-21 |
FI82897B (en) | 1991-01-31 |
DE3731326C2 (en) | 1989-08-24 |
GB2197945B (en) | 1991-01-16 |
GB2197945A (en) | 1988-06-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: AKTIEBOLAGET ELECTROLUX |