SE449455B - STARTGASREGLAGE - Google Patents

STARTGASREGLAGE

Info

Publication number
SE449455B
SE449455B SE8201691A SE8201691A SE449455B SE 449455 B SE449455 B SE 449455B SE 8201691 A SE8201691 A SE 8201691A SE 8201691 A SE8201691 A SE 8201691A SE 449455 B SE449455 B SE 449455B
Authority
SE
Sweden
Prior art keywords
throttle control
starting throttle
braking
starting
unaffected
Prior art date
Application number
SE8201691A
Other languages
Swedish (sv)
Other versions
SE8201691L (en
Inventor
R A G Johansson
Original Assignee
Electrolux Ab
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 Electrolux Ab filed Critical Electrolux Ab
Priority to SE8201691A priority Critical patent/SE449455B/en
Priority to DE19838306837 priority patent/DE8306837U1/en
Priority to DE19833308400 priority patent/DE3308400A1/en
Priority to JP4160283A priority patent/JPS58180738A/en
Publication of SE8201691L publication Critical patent/SE8201691L/en
Publication of SE449455B publication Critical patent/SE449455B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00Chain saws; Equipment therefor
    • B27B17/0008Means for carrying the chain saw, e.g. handles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00Chain saws; Equipment therefor
    • B27B17/08Drives or gearings; Devices for swivelling or tilting the chain saw
    • B27B17/083Devices for arresting movement of the saw chain
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D11/00Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/02Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by hand, foot, or like operator controlled initiation means

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)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Braking Arrangements (AREA)

Description

449 455 Som inledningsvis nämndes utgör en roterande sågkedja efter start av motorn en olycksrisk. Den extra utlösníngsanordningen som omtalas består enligt fig. 1 och 2 av Bowdenkabeln 23, hävstången 24 och en med denna samverkande avtryckar-stång 32 på bygeln 13. I driftsläge enligt fig.l är nedre änden av hävstången, försedd med en vínkelböj 33, införd i ett spår 34 på avtryckarstången. Änden av denna befinner sig då i låsläge mot dubbelarmen 29, så att bromsen hålls i frånläge. Som förut omtalats svängs hävstången 24 kring sin axel 25 då en dragkraft uppstår i kabeln (vid svängning av spärren 20) och svängningen medför att vinkelböjen 33 glider upp på den sluttande spårkanten 35 och därmed tvingar avtryckarstången 32 till svängning uppåt med bygelns axel 27 som svängningspunkt. Den läsande kontakten mellan dubbelarmen 29 och avtryckarstången upphör därmed, och ett läge enligt fig. 2 inträffar, d.v.s. fjädern 28 svänger dubbelarmen och drar åt bromsbandet 30- kring trumman-31. I detta läge är sågkedjan låst, samtidigt som fingerreglaget 14 av spärren 20 hålls i startgasläge enligt fig. 2. När motorn kommit igång trycker föraren fingerreglaget ännu en bit inåt och kontakten mellan spärrens nedre ände och armen 17 upphör, varvid fjädern 26 åter- ställer spärren 20 och hävstängen 24 i lägen enligt fig. 1. Bromsen lossas därefter genom en kort svängning bakåt av bygeln 13, varvid en hake 36 på avtryckarstången svänger dubbelarmen 29 tillbaka i läge enligt fig. 1. 449 455 As mentioned at the outset, a rotating saw chain after starting the engine poses an accident risk. The additional release device mentioned according to Figs. 1 and 2 consists of the Bowden cable 23, the lever 24 and a trigger rod 32 cooperating therewith on the bracket 13. In the operating position according to Fig. 1, the lower end of the lever, provided with an angle bend 33, is inserted in a groove 34 on the trigger rod. The end of this is then in the locked position against the double arm 29, so that the brake is kept in the off position. As previously mentioned, the lever 24 pivots about its axis 25 when a pulling force occurs in the cable (when pivoting the latch 20) and the pivoting causes the angular bend 33 to slide up on the sloping groove edge 35 and thus forces the trigger rod 32 to pivot upwards with the shackle shaft 27 as pivot point . The reading contact between the double arm 29 and the trigger rod thus ceases, and a position according to Fig. 2 occurs, i.e. the spring 28 swings the double arm and tightens the brake band 30- around the drum-31. In this position the saw chain is locked, while the finger control 14 of the latch 20 is kept in the starting throttle position according to Fig. 2. When the engine has started, the driver pushes the finger control a little further inwards and the contact between the lower end of the latch and the arm 17 ceases. the latch 20 and the lever 24 in positions according to Fig. 1. The brake is then released by a short swing backwards by the yoke 13, whereby a hook 36 on the trigger rod swings the double arm 29 back in position according to Fig. 1.

Det beskrivna utföringsexemplet är tillämpat på en i och för sig känd broms- mekanism men givetvis kan anordningen modifieras, så att den passar på andra mekanismer. Likaså är den visade spärren 20 ett föredraget utförande för att underlätta beskrivningen och skall inte betraktas som normgivande för uppfinningen, vilken givetvis kan modifieras med hänsyn till andra utföranden av dylik spärr.The described exemplary embodiment is applied to a braking mechanism known per se, but of course the device can be modified so that it fits other mechanisms. Likewise, the barrier shown 20 is a preferred embodiment to facilitate the description and should not be construed as setting a standard for the invention, which can of course be modified with regard to other embodiments of such a barrier.

Claims (4)

449 455 Patentkrav449,455 Claims 1. Startgasreglage, ställbart i påverkat eller opàverkat läge så att det i påverkat läge styr ut ett startgasläge hos en förgasare till en av motor driven motorsåg, vilken har en bromsmekanism som i bromsande läge utför bromsning av en sågkedjan drivande del av en centrifugalkoppling mellan motoraxeln och kedjan, k ä n n e t e c k n a t där- av, att ett rörelseöverföringsorgan (23) mellan startgasreglaget och nämnda broms- mekanism är anordnat att vid omställning av startgasreglaget från opàverkat till påverkat läge överföra rörelse som bringar bromsmekanismen från obromsat läge till bromsande läge.Starting throttle control, adjustable in actuated or unaffected position so that in actuated position it controls a starting throttle position of a carburettor to a motor-driven chainsaw, which has a braking mechanism which in braking position performs braking of a saw chain driving part of a centrifugal coupling between the motor shaft and the chain, characterized in that a motion transmission means (23) between the starting throttle control and said braking mechanism is arranged to transfer movement which moves the braking mechanism from unbraked position to braking position when switching the starting throttle control from unaffected to affected position. 2. Startgasreglage enligt patentkravet l, k ä n n e t e c k n a t därav, att reglaget jämte rörelseöverföringsorganet återställa från påverkat läge till opäverkat av ett elastiskt organ (26).2. Starting throttle control according to claim 1, characterized in that the control, together with the motion transmission means, reset from the affected position to the unaffected by an elastic member (26). 3. Startgasreglage enligt patentkravet 1, k ä n n e t e c k n a t därav, att rörelse- överföringsorganet är utsträckt från motorsägens bakre handtag, (11) till bromsmekanis- men vid kopplingsdelen (31) och utgörs av ett dragorgan.Starting throttle control according to claim 1, characterized in that the motion transmission means is extended from the rear handle of the chainsaw, (11) to the brake mechanism at the coupling part (31) and consists of a traction means. 4. Startgasregiage enligt patentkravet 3, k ä n n e t e ek n a t därav, att ena änden av dragorganet (23) är fastgjord vid en som hävstâng (20) utbildad gasspärr av reglaget och andra änden vid ytterligare en hävstång (24) som är i ingrepp med en avtryckar- stàng (32) i bromsmekanismen.Starting throttle control according to claim 3, characterized in that one end of the traction member (23) is attached to a gas barrier formed by the lever (20) by the control and the other end to a further lever (24) which engages with a trigger rod (32) in the brake mechanism.
SE8201691A 1982-03-17 1982-03-17 STARTGASREGLAGE SE449455B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8201691A SE449455B (en) 1982-03-17 1982-03-17 STARTGASREGLAGE
DE19838306837 DE8306837U1 (en) 1982-03-17 1983-03-09 Start control device
DE19833308400 DE3308400A1 (en) 1982-03-17 1983-03-09 Starting control device
JP4160283A JPS58180738A (en) 1982-03-17 1983-03-15 Starting controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8201691A SE449455B (en) 1982-03-17 1982-03-17 STARTGASREGLAGE

Publications (2)

Publication Number Publication Date
SE8201691L SE8201691L (en) 1983-09-18
SE449455B true SE449455B (en) 1987-05-04

Family

ID=20346291

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8201691A SE449455B (en) 1982-03-17 1982-03-17 STARTGASREGLAGE

Country Status (3)

Country Link
JP (1) JPS58180738A (en)
DE (2) DE8306837U1 (en)
SE (1) SE449455B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3354892B1 (en) 2017-01-30 2020-04-29 Andreas Stihl AG & Co. KG Hand-guided working tool with a combustion engine and an electric starting device

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430840A1 (en) * 1984-08-22 1986-03-06 Fa. Andreas Stihl, 7050 Waiblingen MOTOR CHAIN SAW
JPH0335856Y2 (en) * 1986-11-14 1991-07-30
DE4120876C2 (en) * 1991-06-21 2003-03-06 Stihl Maschf Andreas Tool, especially motor chainsaw
US5915795A (en) * 1995-04-11 1999-06-29 Makita Corporation Chain saw braking device
JP3284021B2 (en) * 1995-04-11 2002-05-20 株式会社マキタ Chainsaw braking device
DE102012012827A1 (en) * 2012-06-28 2014-01-02 Andreas Stihl Ag & Co. Kg Start safety circuit in a working device with an internal combustion engine
DE102012012798B4 (en) * 2012-06-28 2014-11-13 Andreas Stihl Ag & Co. Kg Working device with a braking device
DE102012012801A1 (en) 2012-06-28 2014-01-02 Andreas Stihl Ag & Co. Kg implement
DE102012012799A1 (en) 2012-06-28 2014-01-02 Andreas Stihl Ag & Co. Kg Working device with a braking device
DE102013009891A1 (en) 2013-06-13 2014-12-18 Andreas Stihl Ag & Co. Kg Work tool with an internal combustion engine
JP2016182790A (en) * 2015-03-26 2016-10-20 株式会社マキタ Brake device of chain-saw

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793727A (en) * 1972-10-04 1974-02-26 Mcculloch Corp Chain saw safety method and apparatus
DE3150769A1 (en) * 1981-12-22 1983-06-30 Fa. Andreas Stihl, 7050 Waiblingen Safety device on a two-handled power saw

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3354892B1 (en) 2017-01-30 2020-04-29 Andreas Stihl AG & Co. KG Hand-guided working tool with a combustion engine and an electric starting device
EP3354892B2 (en) 2017-01-30 2023-11-22 Andreas Stihl AG & Co. KG Hand-guided working tool with a combustion engine and an electric starting device

Also Published As

Publication number Publication date
JPS58180738A (en) 1983-10-22
DE3308400A1 (en) 1983-09-29
SE8201691L (en) 1983-09-18
DE8306837U1 (en) 1986-03-27
JPH0251050B2 (en) 1990-11-06

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