EP2808529A1 - Appareil de travail manuel doté d'un moteur à combustion interne - Google Patents

Appareil de travail manuel doté d'un moteur à combustion interne Download PDF

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Publication number
EP2808529A1
EP2808529A1 EP14001825.0A EP14001825A EP2808529A1 EP 2808529 A1 EP2808529 A1 EP 2808529A1 EP 14001825 A EP14001825 A EP 14001825A EP 2808529 A1 EP2808529 A1 EP 2808529A1
Authority
EP
European Patent Office
Prior art keywords
throttle
lever
mode selector
return element
return
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
Application number
EP14001825.0A
Other languages
German (de)
English (en)
Other versions
EP2808529B1 (fr
Inventor
Jan Kurzenberger
Werner Gräter
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.)
Andreas Stihl AG and Co KG
Original Assignee
Andreas Stihl AG and Co KG
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 Andreas Stihl AG and Co KG filed Critical Andreas Stihl AG and Co KG
Publication of EP2808529A1 publication Critical patent/EP2808529A1/fr
Application granted granted Critical
Publication of EP2808529B1 publication Critical patent/EP2808529B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/02—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being chokes for enriching fuel-air mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/04—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
    • F02M19/12—External control gear, e.g. having dash-pots
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0205—Arrangements; Control features; Details thereof working on the throttle valve and another valve, e.g. choke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0208—Arrangements; Control features; Details thereof for small engines

Definitions

  • the invention relates to a hand-held implement with an internal combustion engine of the type specified in the preamble of claim 1.
  • a carburetor for an internal combustion engine of a power saw is known in which a starting position can be adjusted via an actuating lever. In the starting position, a choke is completely closed and a throttle partially closed. The throttle valve is held in the starting position via a catch. To release the starting position, the operator can reset the starting door via a control lever in the fully open position. The throttle valve remains in its starting position until the catch is released by accelerating.
  • the DE 10 2010 009 915 A1 is a carburettor arrangement for a hand-held implement known.
  • the implement has a throttle and a mode selector.
  • a throttle valve and a choke flap in a throttle position, namely a hot start position or a cold start position can be adjusted.
  • the warm start position is released by pressing the throttle lever in the direction of its full throttle position.
  • the mode selector is returned to its operating position. This provision is made via the spring forces acting on the mode selector and on the choke flap. To allow a safe reset of the mode selector, these springs must be designed accordingly strong.
  • the invention has for its object to provide a hand-held implement with an internal combustion engine of the generic type, which allows ergonomic operation.
  • a reset element which is permanently coupled to the position of the throttle lever.
  • the reset element acts when the throttle lever is actuated to release the latch on the mode selector and returns the mode selector from the start position to the operating position.
  • the mode selector is thereby not put back into the operating position by the spring forces acting on the mode selector and the throttle element, but via the resetting element on the basis of the force applied by the operator to the throttle lever.
  • no large spring forces on the throttle element and the mode selector must be provided.
  • Even with unfavorable conditions of the lever lengths of the coupling elements that transmit the force acting on the throttle element spring force on the mode selector a safe reset of the mode selector can be achieved.
  • the coupling elements between mode selector and throttle element need not be designed to transmit large forces, resulting in a simple structure and a total low weight of the implement.
  • the return element cooperates with an operating part connected to the actuator actuator.
  • the restoring element is in particular pivotally mounted on the throttle lever and abuts against the actuating part. Due to the pivotable mounting of the restoring element on the throttle lever results in a structurally simple structure.
  • the restoring element is in particular a separate, pivotally mounted on the throttle component.
  • the return element may advantageously also be formed integrally with the throttle, for example, if the throttle and return element made of plastic. By correspondingly small wall thicknesses, an elasticity of the Connection of throttle and return element and thereby a pivoting of the return element relative to the throttle lever can be achieved.
  • the restoring element is arranged longitudinally displaceable relative to the throttle lever and is actuated, for example, by a cam or the like of the throttle lever.
  • the return element is spring-mounted and is pressed by the spring force against the actuating part.
  • the actuating member has a return portion to which the return element acts upon pivoting of the throttle lever from the idle position in the direction of the full throttle position and resets the mode selector in its operating position.
  • the force exerted by the operator on the throttle lever can be introduced directly to the mode selector via the return element.
  • the return element pivots and the return section comes in the path of movement of the return element when adjusting the throttle from the idle position to the full throttle position.
  • the actuating member has a deflection portion which rests in the operating position of the mode selector on the return element and deflects the return element during pivoting of the throttle lever from the idle position in the direction of the full throttle position from the movement of the operating part.
  • the mode selector is advantageously adjusted in full throttle position of the throttle lever in the starting position. If the throttle lever is then released, the throttle lever pivots into the neutral position. When pivoting the throttle lever off the full throttle position in the idle position pivots the return element, and the return section reaches in the path of movement of the return element when adjusting the throttle lever from the neutral position to the full throttle position. In order to release the locking of the throttle element, the operator must give gas from the idle position of the throttle lever, ie move the throttle lever in the direction of its full throttle position. This releases the locking.
  • the locking of the throttle element in the starting position for example, be a catch on a bearing shaft of the mode selector.
  • the return portion of the actuating member When adjusting the throttle lever from the idle position to the full throttle position, the return portion of the actuating member is in the path of movement of the return element.
  • the reset element acts when accelerating to release the latching of the throttle element on the return portion and adjusts the mode selector back to its operating position.
  • actuation of the throttle lever from the latched position of the throttle element ie from the idle position, in the direction of the full throttle position, is reset by the reset element of the mode selector in its operating position.
  • the deflection section lifts when adjusting the Radiostellstellers from the operating position to the starting position of the return element.
  • the actuating member advantageously has a support portion which deflects the return element when the throttle in its full throttle position and the mode selector are in its starting position.
  • the throttle lever When pivoting the throttle lever in the neutral position, the return element slides from the support portion advantageous.
  • the throttle lever can be actuated to set the starting position to the full throttle position without being blocked by the return portion of the actuating part.
  • the return element can pivot so that the return portion of the actuating member is in the path of movement of the return element.
  • a simple, robust construction can be achieved if at least one side guide is provided for the return element.
  • the side guide is advantageously transverse to the longitudinal direction of the pivot axis of the return element.
  • two side guides are provided for the return element, which are arranged opposite to each other and lead the return element to both sides in the direction of the pivot axis.
  • a first throttle element and a second throttle element are arranged in the intake passage, wherein both throttle elements are adjusted via the mode selector in a starting position.
  • one of the throttle elements is operated by a throttle lever throttle element and the other throttle element is a choke element.
  • the first throttle element is connected to a first coupling lever and the second throttle element is connected to a second coupling lever.
  • the two coupling levers are advantageously locked together and keep the throttle elements in their throttle position.
  • the throttle lever has an advantageous effect on the first throttle element and the mode selector on the second throttle element.
  • the throttle elements may be, for example, throttle valves or roller-shaped throttle elements.
  • the mode selector acts advantageously via an adjusting lever on the second throttle element, wherein the actuating lever has a first contact surface and a second contact surface.
  • pivoting the mode selector from the operating position to the starting position of the lever advantageously acts first on the first contact surface and then on the second contact surface on the second throttle element.
  • the two contact surfaces are advantageously formed as flat surfaces and are at an angle to each other. As a result, the direction of action of the force that exerts the mode selector on the lever to the second throttle element, be introduced low over the entire operating range.
  • Fig. 1 As an exemplary embodiment of a hand-held implement a chainsaw 1.
  • another hand-held implement such as a cut-off, a brushcutter, a suction / blower, a hedge trimmer, a harvester or the like.
  • the power saw 1 has a housing 2 to which a rear handle 3 and a grip tube 4 for guiding the power saw 1 during operation are fixed.
  • a guide rail 6 At the rear handle 3 opposite side of the housing 2 projects a guide rail 6 forward, on which a saw chain 7 is arranged circumferentially.
  • a hand guard 5 is arranged, which extends to the saw chain 7 facing side of the handle tube 4.
  • the hand guard 5 may be pivotally mounted on the housing 2 and serve to trigger a chain brake for the saw chain 7.
  • the saw chain 7 is driven in rotation by a combustion engine 12 arranged in the housing 2.
  • the internal combustion engine 12 has a cylinder 13 in which a piston 14 is reciprocally mounted.
  • the piston 14 defines a combustion chamber 15 formed in the cylinder 13.
  • the piston 14 drives a crankshaft 85 rotatably mounted in a crankcase 16.
  • a carburetor 18 is provided, which supplies the internal combustion engine 12 via a suction channel 17 fuel / air mixture.
  • largely fuel-free combustion air in particular for rinsing, can be supplied via the carburetor 18.
  • the intake passage 17 is advantageously divided downstream of the carburetor 18 in an air channel for supplying largely fuel-free combustion air and in a mixture channel for supplying fuel / air mixture.
  • a throttle lever 10 and a throttle lever 11 are pivotally mounted.
  • a mode selector 8 is pivotally mounted on the housing 2 about a pivot axis 9.
  • the mode selector 8 is used to set a starting position for throttle elements in the carburetor 18.
  • Starter 87 shown schematically to be started.
  • the starting device 87 may, for example, be a recoil starter or an electrically actuated starter device.
  • Fig. 2 schematically shows the structure of the carburetor 18 and an air filter 19.
  • the air filter 19 is disposed upstream of the carburetor 18 with respect to a flow direction 88 to the engine 12.
  • the carburetor 18 has a carburetor housing 32 in which a portion of the intake passage 17 is formed.
  • a first throttle element 21 and a second throttle element 23 are pivotally mounted.
  • the throttle elements 21 and 23 are formed as flaps.
  • the throttle elements 21 and 23 may also be formed roller-shaped. Other configurations of the throttle elements 21 and 23 may be advantageous.
  • a Venturi 20 is formed in the intake passage 17.
  • a main fuel opening 25 opens into the intake passage 17, via which fuel is supplied to the intake passage 17.
  • several secondary fuel openings 26 open into the intake passage 17 in the region of the first throttle element 21.
  • the carburetor 18 has a valve 27, which is preferably designed as an electromagnetic valve.
  • the carburetor 18 may also be a conventional diaphragm carburetor with a mechanically acting inlet valve into the control chamber.
  • the first throttle element 21 is pivotally mounted with a throttle shaft 22. In the unactuated state, the first throttle element 21 is in an idle position 76. In this position, the edge of the first throttle element 21 forming throttle on the wall of the intake passage 17 at. The first throttle element 21 is closed in idle position 76.
  • the first throttle element 21 is spring-loaded by a spring, not shown, in the direction of the idle position 76.
  • the first throttle element 21 also has a throttle position 66, in which the first throttle element 21 is partially open relative to the neutral position 76.
  • the idle position 76 is in Fig. 2 drawn with dashed line.
  • the second throttle element 23 has an unactuated position 74, in which the second throttle element 23 is open.
  • the choke flap which forms the second throttle element 23 is approximately parallel in the unactuated position 74 aligned with the flow direction 88 in the intake passage 17.
  • the second throttle element 23 is pivotally mounted with a choke shaft 24.
  • the second throttle element 23 has a throttle position 67 in which the second throttle element 23 at least partially closes the flow cross section in the intake passage 17.
  • the edge of the flap, which forms the second throttle element 23 abuts against the wall of the intake channel 17.
  • the second throttle element 23 is closed in this position.
  • the second throttle element 23 may also be partially open in its throttle position 67.
  • the carburetor 18 has a first coupling lever 28 which is rotatably connected to the throttle shaft 22, and a second coupling lever 29 which is rotatably connected to the choke shaft 24.
  • the first coupling lever 28 is arranged in an idle position 75 and the second coupling lever 29 in an unactuated position 73.
  • a locking contour 30 is formed, which extends in a hook-shaped manner.
  • the locking contour 30 engages in the in Fig. 3 shown position of the coupling lever 28 and 29 a locking contour 31 on the second coupling lever 29.
  • Throttle position 67 shown pivoted so hooks the locking contour 31 on the locking contour 30 a.
  • the first coupling lever 28 is in its neutral position 75, thereby the second throttle element 23 can not be pivoted into its throttle position 67.
  • Fig. 3 shows the throttle lever 10 in an idle position 62. In this position, the throttle lever 10 is not actuated. Also, the throttle lock 11 is shown in FIG Fig. 3 not activated.
  • a spring 36 acts, which presses the throttle lever 10 in the direction of its idle position 62.
  • the throttle lever 10 is pivotally mounted about a pivot axis 35.
  • the throttle lever 10 has an arm 77 which extends away from the pivot axis 35 and on which a throttle linkage 33 is suspended from a suspension 34.
  • the throttle linkage 33 acts on the throttle shaft 22.
  • Fig. 3 shows the mode selector 8 in an operating position 64.
  • the mode selector 8 To insert a starting position 65, the in Fig. 3 dashed lines, the mode selector 8 must be pivoted in the direction of arrow 83 by the operator.
  • the mode selector 8 is fixed to a bearing shaft 37 which is pivotally mounted about a pivot axis 53.
  • an actuating part 41 On the bearing shaft 37, an actuating part 41 is fixed, which cooperates with a return element 39.
  • the return element 39 is pivotally mounted on the arm 77 of the throttle lever 10 about a pivot axis 40 and rests on the actuating part 41.
  • Fig. 3 also shows a side guide 42 of the return element 39.
  • a contact spring 38 which short-circuits an ignition of the internal combustion engine 12 in dependence on the position of the bearing shaft 37.
  • the contact spring 38 does not close the ignition short.
  • a lever 46 is also arranged on the bearing shaft 37.
  • the bearing shaft 37 is advantageously integrally formed with the mode selector 8, the operating part 41 and the adjusting lever 46.
  • Fig. 4 shows the in Fig. 3 shown arrangement of the opposite, in Fig. 4 rear side.
  • a second side guide 43 is visible on the return element 39.
  • the side guides 42 and 43 engage around the actuating part 41, which projects between the two side guides 42 and 43.
  • the return element 39 is formed as an elongate, approximately U-shaped in cross-section lever.
  • a spring 57 which presses the return element 39 against the actuating part 41.
  • the restoring element 39 rests on the actuating part 41 only on the basis of gravity.
  • the throttle lever lock 11 is pivotally mounted about a pivot axis 54. In the in Fig.
  • the choke operating lever 50 is arranged on the side of the carburetor housing 32, on which also the throttle operating lever 49 is arranged.
  • the choke actuating lever 50 has a bolt 51, which is when adjusting the Mode selector 8 in the starting position 65 ( Fig. 3 ) cooperates with contact surfaces 47 and 48 of the actuating lever 46.
  • operating position 64 of the mode selector 8 and the bearing shaft 37 has the lever 46 to the bolt 51 a distance.
  • a contact contour 52 for the contact spring 38 is formed on the bearing shaft 37.
  • the contact spring 38 is so on the contact contour 52, that it exerts a moment about the bearing shaft 37, the in Fig. 3 counteracted by the arrow 83 indicated actuation direction for the mode selector 8.
  • the arrow 83 corresponds to the adjustment of the mode selector 8 from the operating position 64 in the starting position 65.
  • the contact spring 38 defines with the contact contour 52 a detent position for the bearing shaft 37th Wie Fig. 4 Also shows, a short-circuit contact 45 is disposed on the contact contour 52.
  • FIGS. 5 to 7 show the arrangement of throttle lever 10, return element 39 and bearing shaft 37 when adjusting the throttle elements 21 and 23 in the throttle positions 66 and 67th
  • Fig. 5 shows the arrangement in idle position 62 of the throttle lever 10 and operating position 64 of the bearing shaft 37.
  • the return element 39 has a contact surface 44 against which a deflection section 59 of the actuating part 41 abuts.
  • the actuating member 41 has two arms 89, 90. The two arms 89 and 90 extend away from the pivot axis 53 of the bearing shaft 37 to the outside.
  • a support portion 60 is formed on the front side of the arm 89.
  • the support portion 60 to the pivot axis 53 has a distance c.
  • the deflection section 59 has a distance b from the pivot axis 53 which is significantly greater than the distance c (FIG. Fig. 7 ).
  • a return portion 58 is formed, which will be described in more detail below.
  • At the return portion 58 includes a in Fig. 6 shown support section 61 at.
  • the support portion 61 and the return portion 58 constitute a step.
  • the pivot axis 40 of the return element 39 and the pivot axis 35 of the throttle lever 10 have a distance a from each other.
  • the spring 57 presses the restoring element 39 against the deflection section 59.
  • the upper side 71 of the restoring element 39 which faces away from the deflection section 59, forms an angle ⁇ with a connecting line 70 which connects the pivot axes 35 and 40 to one another.
  • the angle ⁇ in the arrangement Fig. 5 thus, when the throttle lever 10 in idle position 62 and the bearing shaft 37 are in operating position 64, slightly smaller than 90 °.
  • the throttle To insert the throttle positions 66, 67 of the throttle elements 21 and 23, the throttle must first 10 in his in Fig. 6 shown full throttle position 63 are pivoted.
  • the throttle lever 10 In the direction of arrow 91 in Fig. 5 pivoted.
  • the contact surface 44 of the return element 39 slides over the Auslenkabschnitt 59.
  • the return element 39 pivots relative to the throttle lever 10 about the pivot axis 40.
  • the angle which the connecting line 70 includes with the top 71 of the return element 39 increases
  • the connecting line 70 In full throttle position 63 of the throttle lever 10 and in the operating position 64 of the bearing shaft 37, the connecting line 70 includes with the top 71 an angle ⁇ , which is significantly greater than the angle ⁇ . In the exemplary embodiment, the angle ⁇ is greater than 90 °.
  • the contact surface 44 In full throttle position 63, the contact surface 44 is located on the deflection section 59.
  • Fig. 6 is the bearing shaft 37 in the operating position 64. If the bearing shaft 37 from their in Fig. 6 shown operating position 64 pivoted by operating the mode selector 8 in the starting position 65, the deflection section 59 comes out of contact with the contact surface 44. The deflection section 59 lifts off from the contact surface 44 of the return element 39. When pivoting the bearing shaft 37 in the starting position 65 of the arrives Supporting portion 60 in the region of the return element 39. As soon as the deflection section 59 lifts off from the abutment surface 44, the restoring element 39 pivots due to the force of the spring 57 (FIG. Fig. 5 ) in the direction of the actuating part 41.
  • the return element 39 comes to rest on the support portion 60 and is supported by the support portion 60 in the in Fig. 7 shown position held.
  • the top 71 connects with the connecting line 70 an angle ⁇ , which is smaller than the angle ⁇ .
  • Fig. 7 is the position of the top 71 in the in Fig. 6 shown position indicated by a dashed line 72.
  • the throttle lever 10 is still in full throttle position 63 and is held by the operator.
  • the operator can release the throttle 10.
  • the throttle lever 10 pivots in the direction of arrow 92 in FIG Fig. 7 until he returns to his Fig. 8 shown idle position 62 reached.
  • the throttle lever 10 can pivot back to the neutral position 62, although the first throttle element 21 is in throttle position 66, because the hook 86, on which the throttle linkage 33 is mounted on the throttle lever 49, is formed as a slot, in particular Fig. 11 shows.
  • the adjusting lever 46 actuates the bolt 51 on the choke operating lever 50 (FIG. Fig. 4 ).
  • Fig. 9 shows the throttle lever 10 and the bearing shaft 37 in the in Fig. 8 shown position.
  • the throttle lever 10 has the full throttle position 63 ( Fig. 7 ) into the idle position 62 (FIG. FIGS. 8 and 9 ) reset.
  • the return element 39 has slipped off the support section 60 and is now supported on the support section 61.
  • the return element 39 has an actuating surface 82, which is formed in the embodiment on the end face of the return element 39.
  • the actuating surface 82 is located in the in Fig. 9 adjacent position shown to the reset section 58. If the throttle lever 10 from the in Fig.
  • FIGS. 10 and 11 show the installation of the bolt 51 on the abutment surfaces 47 and 48 during the adjustment of the mode selector 8 from the operating position 64 (FIG. Fig. 4 ) In the starting position 65.
  • the choke shaft 24 is pivotally mounted about a pivot axis 93.
  • the connecting line 95 between the pivot axis 93 and the contact point 94 includes with the contact surface 47 an angle ⁇ , which is less than 60 °, preferably less than 50 °.
  • the contact surface 47 is advantageously oriented so that the angle ⁇ becomes 0 °, while the bolt 51 still rests against the contact surface 47.
  • Fig. 1 shows, the system of the bolt 51 changes from the first contact surface 47 to the second contact surface 48.
  • start position 65 of the bearing shaft 37 of the bolt 51 abuts against the contact surface 48.
  • the contact surface 48 is aligned approximately perpendicular to the connecting line 95.
  • the connection line 95 is approximately parallel to the contact surface 48.
  • the contact spring 38 acts on the contact contour 52 in a direction which counteracts the arrow 84, so the release direction.
  • the bearing shaft 37 is thereby latched by the contact spring 38 in the starting position 65.
  • the second throttle element 23 is about the latch and the lever 46 in its throttle position 67 ( Fig. 2 ) held.
  • About the locking of the bearing shaft 37, the lever 46 and the coupling lever 29 of the coupling lever 28 and thus the first throttle element 21 is held in its throttle position 66. If the latching of the bearing shaft 37 is released, then the bearing shaft 37 with the adjusting lever 46 returns to the operating position 64.
  • the second throttle element 23 can pivot back into its unactuated position 74. As a result, the coupling element 29 from the pivoting range of the coupling element 28 passes. Due to the actuation of the throttle lever 10 to release the locking simultaneously pivots the coupling element 28 away from the coupling element 29.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
EP14001825.0A 2013-05-31 2014-05-24 Appareil de travail manuel doté d'un moteur à combustion interne Active EP2808529B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013009154.3A DE102013009154A1 (de) 2013-05-31 2013-05-31 Handgeführtes Arbeitsgerät mit einem Verbrennungsmotor

Publications (2)

Publication Number Publication Date
EP2808529A1 true EP2808529A1 (fr) 2014-12-03
EP2808529B1 EP2808529B1 (fr) 2017-12-27

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EP14001825.0A Active EP2808529B1 (fr) 2013-05-31 2014-05-24 Appareil de travail manuel doté d'un moteur à combustion interne

Country Status (4)

Country Link
US (1) US9528450B2 (fr)
EP (1) EP2808529B1 (fr)
CN (1) CN104214010B (fr)
DE (1) DE102013009154A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3054142A1 (fr) * 2015-02-05 2016-08-10 Andreas Stihl AG & Co. KG Carburateur et procede destine au fonctionnement d'un moteur a combustion interne comprenant un carburateur

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DE102012012799A1 (de) * 2012-06-28 2014-01-02 Andreas Stihl Ag & Co. Kg Arbeitsgerät mit einer Bremseinrichtung
DE102012012798B4 (de) 2012-06-28 2014-11-13 Andreas Stihl Ag & Co. Kg Arbeitsgerät mit einer Bremseinrichtung
DE102012012801A1 (de) 2012-06-28 2014-01-02 Andreas Stihl Ag & Co. Kg Arbeitsgerät
DE102012025309A1 (de) * 2012-12-22 2014-06-26 Andreas Stihl Ag & Co. Kg Handgeführtes Arbeitsgerät mit einem Antriebsmotor zum Antrieb mindestens eines Werkzeugs und Verfahren zu dessen Betrieb
EP3094852B1 (fr) * 2013-11-22 2019-05-01 Husqvarna AB Système de démarrage en une seule étape
US10125696B2 (en) * 2015-04-14 2018-11-13 Walbro Llc Charge forming device with throttle valve adjuster
DE102016003426A1 (de) * 2016-03-21 2017-09-21 Andreas Stihl Ag & Co. Kg Handgeführtes Arbeitsgerät mit einer Vorrichtung zur Inbetriebnahme eines elektrischen Antriebsmotors
EP3315273B1 (fr) * 2016-10-31 2019-06-05 Andreas Stihl AG & Co. KG Appareil de travail portatif
CN115256316B (zh) * 2022-04-02 2025-04-22 中国船舶重工集团公司第七一三研究所 一种小型击锤挂扣机构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5209196A (en) * 1991-05-18 1993-05-11 Andreas Stihl Operating-mode position selector arrangement for internal combustion engine
US5215049A (en) * 1991-06-21 1993-06-01 Andreas Stihl Portable handheld work apparatus
US20010013664A1 (en) * 2000-02-10 2001-08-16 Kioritz Corporation. Engine intake control mechanism
DE4311256B4 (de) 1993-04-06 2004-10-07 Solo Kleinmotoren Gmbh Betätigungseinrichtung für Choke und Drosselklappe zum Starten
US6848405B1 (en) * 2003-07-17 2005-02-01 Walbro Engine Management , L.L.C. Self-relieving choke starting system for a combustion engine carburetor
US20100237515A1 (en) * 2009-03-21 2010-09-23 Andreas Stihl Ag & Co. Kg Carburetor assembly
DE102010009915A1 (de) 2009-03-21 2010-09-23 Andreas Stihl Ag & Co. Kg Vergaseranordnung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5738064A (en) * 1995-11-15 1998-04-14 Wci Outdoor Products, Inc. Vibration weld chassis assembly
SE0302439D0 (sv) * 2003-09-12 2003-09-12 Electrolux Ab Throttle control device for a hand held tool

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5209196A (en) * 1991-05-18 1993-05-11 Andreas Stihl Operating-mode position selector arrangement for internal combustion engine
US5215049A (en) * 1991-06-21 1993-06-01 Andreas Stihl Portable handheld work apparatus
DE4311256B4 (de) 1993-04-06 2004-10-07 Solo Kleinmotoren Gmbh Betätigungseinrichtung für Choke und Drosselklappe zum Starten
US20010013664A1 (en) * 2000-02-10 2001-08-16 Kioritz Corporation. Engine intake control mechanism
US6848405B1 (en) * 2003-07-17 2005-02-01 Walbro Engine Management , L.L.C. Self-relieving choke starting system for a combustion engine carburetor
US20100237515A1 (en) * 2009-03-21 2010-09-23 Andreas Stihl Ag & Co. Kg Carburetor assembly
DE102010009915A1 (de) 2009-03-21 2010-09-23 Andreas Stihl Ag & Co. Kg Vergaseranordnung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3054142A1 (fr) * 2015-02-05 2016-08-10 Andreas Stihl AG & Co. KG Carburateur et procede destine au fonctionnement d'un moteur a combustion interne comprenant un carburateur

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EP2808529B1 (fr) 2017-12-27
CN104214010A (zh) 2014-12-17
DE102013009154A1 (de) 2014-12-04
US9528450B2 (en) 2016-12-27
US20140352660A1 (en) 2014-12-04
CN104214010B (zh) 2018-07-27

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