Lub roj teeb chainsaw yog ib qho khoom siv txav tau yooj yim, cov khoom siv hluav taws xob uas txiav nrog cov txheej txheem ntawm cov hniav txuas nrog cov saw hlau tig uas khiav raws cov lus qhia bar.Nws yog siv nyob rau hauv kev ua ub no xws li tsob ntoo poob, limbing, bucking, pruning, txiav firebreaks nyob rau hauv wildland hluav taws tua hluav taws thiab sau ntoo.Chainsaws nrog tshwj xeeb tsim bar thiab saw txuas ua ke tau tsim los ua cov cuab yeej siv hauv chainsaw art thiab chainsaw mills.Tshwj xeeb chainsaws yog siv los txiav pob zeb.Chainsaws yog qee zaum siv los txiav cov dej khov, piv txwv li rau cov duab puab dej khov thiab hauv Finland rau lub caij ntuj no ua luam dej.Ib tug neeg siv lub saw yog sawyer.
Qhov ntxov tshaj plaws patent rau qhov ua tau zoo "txoj saw saw tsis kawg" (ib qho pom suav nrog cov saw txuas uas nqa cov hniav thiab khiav hauv cov lus qhia) tau tso cai rau Samuel J. Bens ntawm San Francisco thaum Lub Ib Hlis 17, 1905. Nws lub hom phiaj yog poob. loj redwoods.Thawj cov chainsaw tau tsim thiab patented hauv 1918 los ntawm Canadian millwright James Shand.Tom qab nws tso cai rau nws txoj cai lapse nyob rau hauv 1930 nws invention yog ntxiv tsim los ntawm dab tsi los ua German tuam txhab Festo nyob rau hauv 1933. Lub tuam txhab tam sim no ua hauj lwm raws li Festool tsim portable fais fab cuab yeej.Lwm tus tseem ceeb pab txhawb rau niaj hnub chainsaw yog Joseph Buford Cox thiab Andreas Stihl ;lub tom kawg patented thiab tsim ib tug hluav taws xob chainsaw rau siv nyob rau hauv bucking sites nyob rau hauv 1926 thiab ib tug roj av-powered chainsaw nyob rau hauv 1929, thiab nrhiav tau ib lub tuam txhab los loj-tsim lawv.Xyoo 1927, Emil Lerp, tus tsim ntawm Dolmar, tau tsim lub ntiaj teb thawj cov roj av-powered chainsaw thiab tsim tawm ntau.
Ntiaj Teb Tsov Rog II cuam tshuam cov khoom ntawm German saw saws rau North America, yog li cov tuam txhab tshiab tau nthuav tawm suav nrog Industrial Engineering Ltd (IEL) hauv xyoo 1947, tus thawj coj ntawm Pioneer Saws.Ltd thiab ib feem ntawm Outboard Marine Corporation, cov chaw tsim khoom qub tshaj plaws ntawm chainsaws hauv North America.
McCulloch hauv North America pib tsim chainsaws hauv xyoo 1948. Cov qauv thaum ntxov yog hnyav, ob tus neeg siv nrog cov tuav ntev.Feem ntau chainsaws hnyav heev uas lawv muaj log zoo li dragsaws .Lwm cov khaub ncaws siv cov kab uas tau tsav los ntawm lub log fais fab los tsav lub txiav bar.
Tom qab Tsov Rog Ntiaj Teb Zaum II, kev txhim kho hauv txhuas thiab lub cav tsim teeb pom kev zoo chainsaws mus rau qhov chaw uas ib tus neeg tuaj yeem nqa lawv.Hauv qee qhov chaw, cov neeg ua haujlwm skidder (chainsaw) tau hloov los ntawm cov neeg sib tw thiab cov neeg sau qoob loo.
Chainsaws yuav luag tag nrho hloov cov txiv neej yooj yim-powered saws hauv hav zoov.Lawv tuaj nyob rau hauv ntau qhov ntau thiab tsawg, los ntawm cov hluav taws xob me me rau kev siv hauv tsev thiab vaj, mus rau "lumberjack" saws loj.Cov tswv cuab ntawm cov tub rog engineer units raug cob qhia los siv chainsaws xws li cov neeg tua hluav taws los tua hluav taws hauv hav zoov thiab ua kom cua tshuab hluav taws xob.
Post lub sij hawm: May-26-2022