EP1094211A1 - Levier d' accélérateur pour machine agricole - Google Patents

Levier d' accélérateur pour machine agricole Download PDF

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Publication number
EP1094211A1
EP1094211A1 EP99308364A EP99308364A EP1094211A1 EP 1094211 A1 EP1094211 A1 EP 1094211A1 EP 99308364 A EP99308364 A EP 99308364A EP 99308364 A EP99308364 A EP 99308364A EP 1094211 A1 EP1094211 A1 EP 1094211A1
Authority
EP
European Patent Office
Prior art keywords
lever
lever member
engine
throttle lever
switch element
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.)
Withdrawn
Application number
EP99308364A
Other languages
German (de)
English (en)
Inventor
Shigeki Sano
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.)
Individual
Original Assignee
Individual
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
Priority to JP10119422A priority Critical patent/JPH11315731A/ja
Application filed by Individual filed Critical Individual
Priority to CA002287467A priority patent/CA2287467A1/fr
Priority to EP99308364A priority patent/EP1094211A1/fr
Priority to CN99123633.5A priority patent/CN1295185A/zh
Publication of EP1094211A1 publication Critical patent/EP1094211A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • 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

Definitions

  • the present invention relates to a throttle lever of a working machine incorporating a multi-purpose engine, for example a tiller, mower, tea leaf picker, cargo carrier, rice planting machine, harvester, binder, combine harvester, snowplow, atomizer, pump, etc., in order to control the engine revolution thereof. More particularly, the present invention relates to a throttle lever with an engine stop switch provided inside or outside the throttle lever, so that an operator may hold a handle of working machine with his finger being placed on a lever member of the throttle lever, and in case of emergency, the lever member can be rotated or moved, thereby the engine can be stopped immediately.
  • a throttle lever with an engine stop switch provided inside or outside the throttle lever, so that an operator may hold a handle of working machine with his finger being placed on a lever member of the throttle lever, and in case of emergency, the lever member can be rotated or moved, thereby the engine can be stopped immediately.
  • a tiller has a pair of handle bars elongated from the main body of the tiller, and one of the pair of handle bars has a so-called throttle lever.
  • An operator may rotate a lever member of the throttle lever in a proper direction according to working condition, thereby the fuel supply to the engine can be controlled, and accordingly the engine revolution speed may be accelerated or decelerated in order to carry out the working.
  • an engine stop switch in order to stop the engine immediately in case of emergency.
  • This type of engine stop switch in the prior art for example a push button switch or rotation (dial type) switch, is provided apart from the throttle lever, such as at the center of any handle bar, or on the handle bar in the vicinity of a handle grip.
  • a one-touch type push button switch is provided on a connecting part of the left handle bar and the right handle bar (that is, at the center of the both handle bars).
  • the engine should be stopped immediately.
  • the mower will be used in the grassland, where industrial wastes incorporating stone or metal might be left. If the cutter blade of the mower touches the industrial waste incorporating stone or metal, the revolving blade might be affected by the remarkable revolution resistance, which might spoil the safety of working.
  • a metal pole of a guardrail exists in the grassland, and if the cutter blade touches the metal pole, the same dangerous state as above discussed may occur. In such a case, the engine should be stopped immediately in order to avoid the danger, thus the same type of engine stop switch as the case of tiller has been provided on the mower.
  • the engine stop switch serving to stop the engine immediately is separately provided other than the throttle lever.
  • the pair of handle bars of the tiller are held by the both hands of the operator, in a state that any finger of one hand of the operator is placed on the lever member of the throttle lever in order to control the engine revolution speed. Consequently, under several operation conditions, it becomes very difficult for the operator to further operate the engine stop switch, and in several cases, although the engine should be stopped immediately, there has been a possibility that the immediate engine stop will not be made. This also applies to the case of mower.
  • the engine stop switch provided apart from the throttle lever stops the engine by short-circuit of the electric power.
  • the lever member of the throttle lever is maintained as the operating position, that is, the position at which the fuel is still supplied, thus it-is difficult to stop the engine surely and immediately.
  • the fuel-air mixture may excessively introduced in the cylinder of engine.
  • the combustion chamber will be in the excessive state of fuel-air mixture, that is, so-called "wet spark plug” , in which state the spark plug cannot be ignited and the engine cannot be restarted.
  • a working machine throttle lever to be attached to and detached from a working machine comprising a main body, a lever member rotatively attached to the main body and connected to a wire elongated from an engine of the working machine, and an engine stop switch.
  • a revolution speed of the engine of the working machine is accelerated, and when the lever member is rotated in another direction, the revolution speed of the engine of the working machine is decelerated.
  • the engine stop switch is actuated and the engine is stopped.
  • the throttle lever is attached to a handle bar elongated from a main unit of the working machine in a state that the throttle lever may be attached to and detached from the handle bar.
  • the throttle lever in regard to the working machine throttle lever of claim 1, is attached to a main unit of the working machine in a state that the throttle lever may be attached to and detached from the main unit.
  • the engine stop switch is incorporated inside the throttle lever.
  • the engine stop switch is provided outside the throttle lever.
  • the engine stop switch comprises a main body switch element of which position on the main body has been determined and is fit into the main body, and a lever member switch element of which position on the lever member has been determined and is fit into the lever member.
  • protrusion on any one of the main body switch element and the main body and hollow on the other of the main body switch element and the main body so that a position of the main body switch element is determined by engagement of the protrusion with the hollow
  • protrusion on any one of the lever member switch element and the lever member and hollow on the other of the lever member switch element and the lever member so that a position of the lever member switch element is determined by engagement of the protrusion with the hollow
  • the main body switch element is integrally incorporated in the main body by insertion method during manufacturing of the main body
  • the lever member switch element is integrally incorporated in the lever member by insertion method during manufacturing of the lever member.
  • the engine stop switch is attached on the lever member, and engine is stopped when the lever member is rotated by more than a predetermined amount as the engine stop switch becomes in contact with a main unit of the working machine.
  • an idle mechanism attached to the throttle lever.
  • An operator may confirm by feeling of resistance whether or not the lever member reaches just before a position at which the engine can be stopped, then the operator may further rotate the lever member in order to stop the engine.
  • the idle mechanism is incorporated in a space between the lever member and the main body.
  • an attachment position of the lever member switch element or the main body switch element is adjustable, thereby a timing of engine stop is adjusted.
  • an operation part of the lever member is formed in a forked shape.
  • the fuel supply is cut when the lever member is rotated by more than a predetermined amount, and an engine electric power circuit is short-circuited at the same time.
  • a metal fitting in order to attach the throttle lever to the working machine is attached to or detached from the throttle lever from the outside of the throttle lever.
  • a force is always applied by an elastic member to the throttle lever in a direction of decelerating a revolution speed of the engine.
  • the engine stop switch in order to stop the engine immediately is provided outside or inside the throttle lever, and when the lever member of the throttle lever is rotated by more than a predetermined amount in one or another direction, the engine stop switch is actuated in case of emergency, thus the engine can be stopped. Therefore, in a normal operation, the fingers of the operator are always placed on the lever member of the throttle lever in order to carry out the working by controlling the revolution speed of the engine, the rotation of the lever member by these fingers in case of emergency can be accomplished easily. Accordingly, in case of emergency, the operator may rotate the lever member of the throttle lever by more than a predetermined amount in one or another direction without being confused, thus the engine can be stopped immediately.
  • the throttle lever may be attached to a handle bar elongated from a main unit of the working machine.
  • the throttle lever may be attached to a main unit of the working machine.
  • the engine stop switch may be incorporated inside, or provided outside, the throttle lever.
  • the engine stop switch When the engine stop switch is incorporated inside the throttle lever, there may be further provided a main body switch element incorporated in the main body and a lever member switch element incorporated in the lever member.
  • a lever member switch element When the lever member is rotated by more than a predetermined amount in the one or another direction, the engine is stopped by short-circuiting both of the switch elements.
  • the engine stop switch When the engine stop switch is incorporated inside the throttle lever, the engine stop switch may comprise a main body switch element of which position on the main body has been determined and is fit into the main body, and a lever member switch element of which position on the lever member has been determined and is fit into the lever member.
  • the lever member When the lever member is rotated by more than a predetermined amount in the one or another direction, the main body switch element and the lever member switch element of the engine stop switch become a predetermined position relation so that the engine stop switch is actuated and the engine is stopped.
  • the engagement mechanism described above there may be provided protrusion on any one of the main body switch element and the main body and hollow on the other of the main body switch element and the main body so that a position of the main body switch element is determined by engagement of the protrusion with the hollow, and also protrusion on any one of the lever member switch element and the lever member and hollow on the other of the lever member switch element and the lever member so that a position of the lever member switch element is determined by engagement of the protrusion with the hollow.
  • the main body switch element may be integrally incorporated in the main body by insertion method during manufacturing of the main body
  • the lever member switch element may be integrally incorporated in the lever member by insertion method during manufacturing of the lever member.
  • the engine stop switch when the engine stop switch is provided outside the throttle lever, there may be provided a lever member switch element outside the lever element and the other switch element outside a main unit of the working machine or a handle bar.
  • the lever member When the lever member is rotated by more than a predetermined amount in the one or another direction, the both of the switch elements become in contact with each other, thus the engine is stopped by short-circuiting both of the switch elements.
  • the engine stop switch may be attached on the lever member, and engine is stopped when the lever member is rotated by more than a predetermined amount as the engine stop switch becomes in contact with a main unit of the working machine.
  • an idle mechanism attached to the throttle lever.
  • An operator may confirm by feeling of resistance whether or not the lever member reaches just before a position at which the engine can be stopped, then the operator may further rotate the lever member in order to stop the engine.
  • the idle mechanism when the idle mechanism is provided, the idle mechanism may be provided in a space between the lever member and the main body.
  • the idle mechanism When an operator actuates the engine stop switch by rotating the lever member, a resistance force is given to the operator just before the engine stop switch is actuated, then the operator may further rotate the lever member in order to actuate the engine stop switch.
  • the engine may be stopped when the lever member is rotated by more than a predetermined amount in one direction, or when the lever member is rotated by more than the predetermined amount in another direction, regardless of direction of rotation.
  • an attachment position of the lever member switch element or the main body switch element may be adjustable, thereby a timing of engine stop can be adjusted.
  • an operation part of the lever member may be formed in a forked shape.
  • the fuel supply may be cut when the lever member is rotated by more than a predetermined amount, and an engine electric power circuit may be short-circuited at the same time.
  • a metal fitting in order to attach the throttle lever to the working machine may be attached to or detached from the throttle lever from the outside of the throttle lever.
  • a force may always be applied by an elastic member to the throttle lever in a direction of decelerating a revolution speed of the engine.
  • the engine stop switch When the engine stop switch is incorporated inside the throttle lever, since the structural member of the engine stop switch will not be exposed to the outside of the throttle lever, the function of the engine stop switch will not be spoiled due to intervention of other parts, and the malfunction of the engine stop switch can also be prevented. Further, the engine stop switch will not spoil the aesthetic of the throttle lever.
  • the engine stop switch comprises, a main body switch element of which position on the main body has been determined and is fit into the main body, and a lever member switch element of which position on the lever member has been determined and is fit into the lever member, the position of each switch element can be determined easily and accurately, thus the more precision engine stop switch can be obtained.
  • lever member switch element and the main body switch element are assembled according to the hollow-protrusion structure engaged with each other, the assemble thereof can be made by accurately determining the engagement position.
  • the desired stop timing corresponding to various working machines can be obtained.
  • a metal fitting in order to attach the throttle lever to the working machine may be attached to or detached from the throttle lever from the outside of the throttle lever, the attachment or detachment of the throttle lever can be made easily.
  • the position of the lever member may become just before the engine stop automatically by simply release the finger grip of the operator.
  • the desired idle function may be obtained without requiring the complicated structure outside the throttle lever.
  • the malfunction of the engine stop switch may also be prevented (if the idle mechanism is provided outside the throttle lever, debris may be caught in the idle mechanism, thereby the idle mechanism cannot be operated, or malfunction thereof will occur).
  • the first embodiment refers to an application of the present invention to a tiller.
  • Fig. 1 illustrates an overall structure of a tiller according to an first embodiment of the present invention, in which there is a main body of tiller 1 incorporating an engine 3 as well as a dynamo 5.
  • the dynamo generates an electric power, which is sent to the engine 3 via an ignition cable 7 so that the fuel-air mixture in the engine 3 may be ignited.
  • a pulley-belt mechanism for example, a pulley-belt mechanism, a chain-sprocket mechanism, a gear group mechanism, etc., can be utilized.
  • Fig. 1 shows an example adopting the pulley-belt mechanism, of which part is illustrated by a virtual line.
  • Fig. 1 shows only the handle bar 15 on the right side of the pair of handle bars 15, 15, Figs. 15 and 16 show the both handle bars 15, 15.
  • the ends of the pair of the handle bars 15, 15 are respectively provided with grips 17, 17, and a throttle lever 19 is secured to the grip 17 of the handle bar 15 on the right side.
  • a wire 21 connected to the throttle lever 19, and the other end of the wire 21 is connected to the engine 3.
  • the handle bar 15 is further provided with a clutch lever 22, to which one end of a wire 24 is connected.
  • This wire 24 is elongated along the handle bar 15, and the other end of the wire 24 is engaged with the power transmission mechanism 4 discussed above.
  • the clutch lever 22 is rotated in an appropriate direction, the power transmission is engaged or released via the wire 24.
  • Figs. 5 and 6 are perspective views showing the external appearance of the throttle lever 19, and Figs. 7 through 12 are views showing the structural parts by exploding the throttle lever 19. Further, Fig. 13 is a view showing the order of assembly of these parts.
  • Figs. 1 through 4 show the throttle lever 19 only as a model for the purpose of explanation.
  • the actual appearance of the throttle lever 19 is as illustrated in Figs. 5 and 6, and the structural parts thereof are as illustrated in Figs. 7 through 12.
  • the throttle lever 19 comprises, an end member 25 as illustrated in Fig. 7, a leaf spring member 27 as illustrated in Fig. 8, a lever member 29 as illustrated in Fig. 9, a lever member switch element 31 (i.e. a switch element on the side of the lever member) as illustrated in Fig. 10, a main body switch element 33 (i.e. a switch element on the side of the main body) as illustrated in Fig. 11, and an end member 35 as illustrated in Fig. 12.
  • FIG. 7 The illustration order of Figs. 7 through 12 corresponds to the order of assembly of each structural part shown in each drawing. That is, as illustrated in Fig. 13, the leaf spring member 27 is placed under the end member 25, and the lever member 29 is placed under the leaf spring member 27, and the lever member switch element 31 is placed under the lever member 29, and the main body switch member 33 is placed under the lever member switch element 31, and the end member 35 is placed under the main body switch element 33.
  • the thus assembled parts are then fastened and fixed by a bolt 22, a washer 24 and a nut 26.
  • the head of this bolt 22 is accommodated in an unillustrated hollow space formed in the end member 25, and the nut 26 is also accommodated in an unillustrated hollow space formed in the end member 35.
  • the main body of the throttle lever 19 comprises the above discussed end member 25, the end member 35, etc., and the lever member 29 is rotatively attached to this main body.
  • a metal fitting 37 is secured to the end member 35.
  • the metal fitting 37 is substantially in the shape of U, with which a grip 17 of the handle bar 15 is engaged, and they are fastened by unillustrated fastening bolt member and nut member. Thus the throttle lever 19 is attached and fixed to the grip 17.
  • the lever member switch element 31 and the main body switch element 33 will now be described in detail.
  • the lever member switch element 31 is incorporated in the lever member 29 in a state that the rotation of the lever member switch element 31 is prohibited.
  • the surface (at the rear of Fig. 10) of the lever member switch element 31 is provided with conductive members 31a, 31b at the angle of 180° .
  • the main body switch element 33 is incorporated in the end member 35 in a state that the rotation of the main body switch element 33 is prohibited.
  • the surface (at the front of Fig. 10) of the main body switch element 33 is provided with conductive members 33a, 33b at the angle of 180 °. Consequently, the conductive members 31a, 31b of the lever member switch element 31 and the conductive members 33a, 33b are incorporated facing to each other.
  • a notch 31c is formed in the lever member switch element 31.
  • a protrusion 29a is formed on the lever member 29 to be engaged with the above notch 31c (see Fig. 13).
  • the rotation of the lever member switch element 31 is prohibited (that is, the lever member switch element 31 rotates together with the rotation of the lever member 29 as a whole unit).
  • a notch 33c is also formed in the main body switch element 33, and a protrusion 35a is formed on the end member 35 to be engaged with this notch 33c (see Fig. 13).
  • the main body switch element 33 As the protrusion 35a is engaged with the notch 33c, the main body switch element 33 is attached to the end member 35 in a state that the rotation of the main body switch element 33 is prohibited.
  • the conductive members 33a, 33b have lead wires 34, 36 respectively connected thereto.
  • One of the lead wires 34, 36 serves as the grounding cable, and the other is connected to an electric circuit.
  • the conductive member 31a of the lever member switch element 31 and the conductive member 33a of the main body switch element 33 are electrically connected to each other, and the conductive member 31b of the lever member switch element 31 and the conductive member 33b of the main body switch element 33 are also electrically connected to each other.
  • the lever member 29 is rotated by more than a predetermined amount, thereby the lever member switch element 31 is also rotated by the same amount simultaneously. This rotation should be continued until the conductive members 31a, 31b of the lever member switch element 31 straddle the conductive members 33a, 33b of the main body switch element 33, as illustrated in Fig. 18, in order to short-circuit the electric circuit. Consequently, the engine 3 becomes the immediate stop.
  • an operator 41 (as illustrated in Figs. 15 and 16) holds the grips 17, 17 of the pair of handle bars 15, 15 by the right hand 43 and the left hand 45. Then as illustrated in Fig. 2, the throttle lever 19 becomes caught by the fingers 43a of the right hand 43. In such a state, the operator 41 operates the tiller by moving in the forward or rearward direction, or by returning the tiller, with his fingers 43a controlling the revolution speed of the engine 3 by rotating the lever member 29 of the throttle lever 19 in an appropriate direction.
  • the lever member 29 of the throttle lever 19 is rotated in order to decelerate the revolution speed of the engine 3, so that the fuel supply may be reduced. Accordingly, when the engine 3 is stopped, further to the short-circuit of the electric circuit, the reduction of the fuel supply is also done.
  • the present embodiment has the following merits.
  • the engine 3 can be stopped immediately and surely, therefore the high level of safety can be obtained.
  • the engine 3 can also be stopped by rotating the lever member 29 by more than the predetermined amount in the direction of accelerating the revolution speed of the engine 3. Accordingly, for example, due to an inevitable accident, if the tiller 1 falls down and the lever member 29 is unintentionally rotated in the direction of accelerating the engine revolution speed and eventually the engine 3 becomes the exceeding high-speed revolution (over-revolution state), the engine 3 can be stopped automatically. Consequently, the safety obtained therefrom may become still higher.
  • the conductive members 31a and 31b, and 33a and 33b are respectively placed corresponding to each other at the angle of 180° , therefore the thickness relation of the lever member switch element 31 and the main body switch element 33 is well-balanced. That is, for example, there is no possibility that the lever member switch element 31 and the main body switch element 33 form a bank and cause the malfunction.
  • the fuel supply is also reduced. Accordingly, the conventional problem of so-called "wet spark plug" state when restarting the engine can surely be prohibited.
  • FIG. 19 A second embodiment of the present invention will now be described with reference to Figs. 19 and 20.
  • the first embodiment has been discussed by using the tiller as the example of the working machine, the second embodiment will refer to a mower as an example of the working machine.
  • Fig. 19 is a perspective view showing a state that an operator 103 is performing a work by carrying a mower 101.
  • the mower 101 has a hollow shaft 105, and a rotative cutter blade 107 is attached to the top of the hollow shaft 105.
  • a grip 111 is provided at a substantial center of the hollow shaft 105, and another grip 113 is further provided at an predetermined position closer to the basement of the shaft than that of the grip 111. As illustrated in Fig. 19, the operator 103 holds the grip 111 by the left hand 103a, and also holds the grip 113 by the right hand 103b.
  • a throttle lever 115 provided adjacent to the grip 113.
  • a lever member 115a of the throttle lever 115 When a lever member 115a of the throttle lever 115 is rotated in one direction, the revolution speed of the engine 109 is accelerated.
  • the lever member 115a When the lever member 115a is rotated in the other direction, the revolution speed of the engine 109 is decelerated.
  • the details thereof are as illustrated in Fig. 20.
  • the lever member 115a is rotated in the clockwise direction of Fig. 20 (that is, the direction shown by an arrow L in Fig. 20)
  • the revolution speed of engine 109 is accelerated
  • the lever member 115a is rotated in counterclockwise direction of Fig. 20 (that is, the direction shown by an arrow H in Fig. 20)
  • the revolution speed of engine 109 is decelerated.
  • the structure of the throttle lever 115 is essentially the same as that of the first embodiment discussed above, in which the engine stop switch is incorporated. Therefore, if the engine 109 should be stopped in case of emergency, the lever member 115a of the throttle lever 115 is rotated in the clockwise direction of Fig. 20 (i.e. the direction of the arrow L in Fig. 20) by more than a predetermined amount. Consequently, the engine stop switch is actuated in order to short-circuit the electric circuit, thus the engine 109 can be stopped immediately.
  • a third embodiment of the present invention will now be described with reference to Figs. 21 and 22.
  • the third embodiment also refers to the mower 101 as have been discussed in the second embodiment.
  • the method of holding of the mower 101 by the operator 103 is different from that of the second embodiment. That is, according to the second embodiment, as illustrated in Fig. 20, the right hand 103b holds the upper part of the grip 113 from above so that the upper part of the grip 113 may be covered by the right hand 103b.
  • the right hand 103b holds the lower part of the grip 113 from below so that the grip 113 may be lifted by the right hand 103b.
  • the left hand 103a also holds the lower part of the grip 111 from below so that the lower part of the grip 111 may be covered by the left hand 103a.
  • a fourth embodiment of the present invention will now be described with reference to Figs. 23 and 24.
  • the fourth embodiment also refers to a mower to which the present invention is applied, likewise the case of the second and third embodiments discussed above.
  • a pair of handle bars 131, 133 are secured to the hollow shaft 105.
  • the operator 103 holds the handle bar 131 by the left hand 103a, and also holds the handle bar 133 by the right hand 103b.
  • the throttle lever 115 is provided on the handle bar 133.
  • Fig. 24 shows an expanded state that the handle bar 133 is right hand 103b.
  • the lever member 115a of the throttle lever 115 has protrusions 135, 137 in order to obtain more efficient operation, that is, the rotation of lever member 115a in the counterclockwise direction of Fig. 24 (the direction of an arrow H in Fig. 24) can be carried out by placing the finger of the right hand 103b on the protrusion 135, and the rotation of the lever member 115a in the clockwise direction of Fig. 24 (the direction of an arrow L in Fig. 24) can be carried out by placing the finger of the right hand 103b on the protrusion 137.
  • the fifth embodiment of the present invention will now be described with reference to Fig. 25.
  • the first through fourth embodiments refer to the structure that the engine stop switch 23 is incorporated inside the throttle lever 19
  • the fifth embodiment refers to a structure that the engine stop switch 23 is provided outside the throttle lever 19.
  • a contact terminal 200a provided outside the lever member 29 of the throttle lever 19, and there is also a contact plate 200b provided on the handle bar 15.
  • the lever member 29 of the throttle lever 19 is rotated upward of Fig. 25 by a large amount. Consequently, the contact terminal 200a becomes in contact with the contact plate 200b, thereby the electric circuit is short-circuited, and the engine can be stopped immediately.
  • the exposed engine stop switch 23 is provided outside the throttle lever 19, the same effect as that described in the first through fourth embodiments of the present invention can also be obtained.
  • a sixth embodiment of the present invention will now be described with reference to Figs. 26 through 39.
  • the sixth embodiment also relates to the mower to which the present invention is applied.
  • the sixth embodiment adopts another type of throttle lever of which shape and structure are different from those of the second embodiment.
  • Fig. 26 is a perspective view showing a state that a operator 203 is performing a work by carrying a mower 201.
  • the mower 201 has a hollow shaft 205 serving as a handle bar, and a rotative cutter blade 207 is attached to the top of the hollow shaft 205.
  • an engine 209 attached to the basement of the hollow shaft 205.
  • the rotation of the engine 209 rotates the cutter blade 207 via an unillustrated power transmission mechanism (a shaft transmitting a rotative power from the engine 209 via a centrifugal clutch, a gear mechanism transmitting such a rotative power to the cutter blade 207, etc.) incorporated inside the hollow shaft 205.
  • a grip 211 is provided at a substantial center of the hollow shaft 205, and another grip 213 is further provided at a predetermined position closer to the basement of the shaft than that of the grip 211.
  • the operator 203 holds the grip 211 by the left hand 203a, and also holds the grip 213 by the right hand 203b from below.
  • the method of holding of the grips in Fig. 26 is shown only as an example, and it is clear that the grips 211 and 213 may be held by the hands from above.
  • a throttle lever 215 provided adjacent to the grip 213.
  • the throttle lever 215 is provided on the hollow shaft 205, at a substantial upper part of Fig. 26.
  • the state of attachment of the throttle lever 215 is shown in detail in Figs. 27 and 28.
  • one end of a wire 216 is connected to the throttle lever 215, and the other end of the wire 216 is connected to the fuel flow controller of the engine 209.
  • a lever member 229 of the throttle lever 215 is rotated in one direction, the fuel supply increases and thereby the revolution speed of the engine 209 is accelerated.
  • the lever member 229 is rotated in the other direction, the fuel supply decreases ant thereby the revolution speed of the engine 209 is decelerated.
  • Fig. 28 The details thereof are as illustrated in Fig. 28.
  • the revolution speed of engine 209 is accelerated, and when the lever member 229 is rotated in clockwise direction of Fig. 28 (that is, the direction shown by an arrow H in Fig. 28), the revolution speed of engine 209 is decelerated.
  • Fig. 28 is a perspective views showing the external appearance of the throttle lever 215, and Fig. 29 is also a perspective view showing the external appearance of the throttle lever 215.
  • Figs. 30 through 35 are views showing the structural parts by exploding the throttle lever 215. Further, Fig. 36 is a view showing the order of assembly of these parts.
  • the throttle lever 215 is provided with an end member 225, and there are indications of "High” (the direction for accelerating the revolution speed of the engine 209) and "Low” (the direction for decelerating the revolution speed of the engine 209) on the surface of the end member 225.
  • a leaf spring member 227 as illustrated in Fig. 31 positioned under the end member 225.
  • the lever member 229 discussed above (see Fig. 31) positioned under the leaf spring 227.
  • lever member switch element 231 as illustrated in Fig. 33 positioned under the lever member 229.
  • the lever member switch element 231 positioned under the lever member 229 is shown by broken line in Fig. 32.
  • main body switch element 233 as illustrated in Fig. 34 positioned under the lever member switch element 231, and there is also an end member 235 as illustrated in Fig. 35 positioned under the main body switch element 233.
  • FIG. 36 The illustration order of Figs. 30 through 35 corresponds to the order of assembly of each structural part shown in each drawing. That is, as illustrated in Fig. 36, the leaf spring member 227 is placed under the end member 225, and the lever member 229 is placed under the leaf spring member 227, and the lever member switch element 231 is placed under the lever member 229, and the main body switch member 233 is placed under the lever member switch element 231, and the end member 235 is placed under the main body switch element 233.
  • the thus assembled parts are then fastened and fixed by a bolt 222, a washer 224 and a nut 226.
  • the head of this bolt 222 is accommodated in an unillustrated hollow space formed in the end member 225, and the nut 226 is also accommodated in an unillustrated hollow space formed in the end member 235.
  • the main body of the throttle lever 215 comprises the above discussed end member 225, the end member 235, etc., and the lever member 229 is rotatively attached to this main body.
  • a metal fitting 237 is secured to the end member 235.
  • the metal fitting 237 is substantially in the shape of U, with which the hollow shaft 205 is engaged, and the hollow shaft 205 is fastened to the metal fitting 237 by unillustrated fastening bolt member and nut member.
  • the throttle lever 215 is attached and fixed to the grip hollow shaft 205.
  • the lever member switch element 231 and the main body switch element 233 will now be described in detail.
  • the lever member switch element 231 is incorporated in the lever member 229 in a state that the rotation of the lever member switch element 231 is prohibited.
  • the lever member switch element 231 has an insulator 232 made of resin, and the surface (at the rear of Fig. 33) of the insulator 232 is provided with conductive members 231a, 231b at the angle of 180° .
  • the structure of attachment of the lever member switch element 231 to the lever member 229 will be described.
  • Fig. 32 there is a pair of hollows 229a, 229b on the lever member 229. Further, as illustrated in Fig.
  • the main body switch element 233 is incorporated in the end member 235 in a state that the rotation of the main body switch element 233 is prohibited.
  • the main body switch element 233 has an insulator 230 made of resin, and the surface (at the front of Fig. 34) of the insulator 230 is provided with conductive members 233a, 233b at the angle of 180 . Consequently, the conductive members 231a, 231b of the lever member switch element 231 and the conductive members 233a, 233b are incorporated facing to each other.
  • Fig. 34 there is a pair of protrusions 230a, 230b on the rear side of the insulator 230 of the main body switch element 233 in Fig. 34.
  • Fig. 35 there is a pair of hollows 235a, 235b on the end member 235. Accordingly, the protrusions 230a, 230b are respectively engaged with the hollows 235a, 235b, thereby the main body switch element 233 is secured to the end member 235, thus the position of the main body switch element 233 against the end member 235 is determined.
  • the conductive members 233a, 233b have lead wires 234, 236 respectively connected thereto.
  • One of the lead wires 234, 236 serves as the grounding cable, and the other is connected to an electric circuit.
  • the conductive member 231a of the lever member switch element 231 and the conductive member 233a of the main body switch element 233 are in contact with each other, and the conductive member 231b of the lever member switch element 231 and the conductive member 233b of the main body switch element 233 are also in contact with each other. That is, the electric circuit is not short-circuited.
  • the lever member 229 is rotated by more than a predetermined amount as illustrated in Fig. 39, thereby the lever member switch element 231 is also rotated by the same amount simultaneously.
  • the lever member 229 is in a forked shape as illustrated in Fig. 28. That is, the operation side of the lever member 229 is provided with knobs 229a, 229b, thus the thumb of the right hand 203b of the operator 203 may be placed on the knob 229a, and the index finger of thereof may be placed on the knob 229b.
  • the operator 203 holds the grips 211, 213 of the hollow shaft 205 by the left hand 203a and the right hand 203b, so that the throttle lever 215 may be operated by the right hand 203b.
  • the operator 203 operates the mower with his right hand 203b controlling the revolution speed of the engine 209 by rotating the lever member 229 of the throttle lever 215 in an appropriate direction.
  • the lever member 229 is rotated by the index finger in the direction of H.
  • the revolution speed of the engine 209 should be decelerated, the lever member 229 is rotated by the thumb in the direction of L.
  • the lever member 229 of the throttle lever 215 is rotated upward by a large amount (more than a predetermined amount) in the direction of L in Fig. 28. Consequently, the position relation of the engine stop switch 223 between the lever member switch element 231 and the main body switch element 233 changes from the state as illustrated in Fig. 38 to that of Fig. 39, thereby the electric circuit is short-circuited, and the engine 209 will be stopped.
  • the lever member 229 of the throttle lever 215 is rotated in order to decelerate the revolution speed of the engine 209, so that the fuel supply may be reduced. Accordingly, when the engine 209 is stopped, further to the short-circuit of the electric circuit, the reduction of the fuel supply is also done.
  • the present embodiment has the following merits.
  • the conductive members 231a and 231b, and 233a and 233b are respectively placed corresponding to each other at the angle of 180° , therefore the thickness relation of the lever member switch element 231 and the main body switch element 233 is well-balanced. That is, for example, there is no possibility that the lever member switch element 231 and the main body switch element 233 form a bank and cause the malfunction.
  • the fuel supply is also reduced. Accordingly, the conventional problem of so-called "wet spark plug" state when restarting the engine can surely be prohibited.
  • the lever member switch element 231 and the main body switch element 233 are engaged with each other by hollow-protrusion structure, the lever member 229 and the end member 235 are fixed on the respective positions determined by the above discussed hollow-protrusion structure.
  • the facile assembly thereof as well as the determination of fixing positions under high accuracy can be accomplished.
  • the lever member 229 is in a forked shape, the immediate stop of the engine can be carried out easily. That is, the thumb and the index finger of the right hand 203b of the operator 203 are always placed on the knob 229a, 229b of the lever member 229, thus the operator 203 can operate the throttle lever 215 promptly.
  • the lever member switch element 231 and the main body switch element 233 are always in slidable contact with each other under the pressing force applied to each of the switch elements. Consequently, each of the contact surfaces is always brushed and free from rust, thus the stable operation condition can be obtained for a long period.
  • the attachment may be made by using an adhesive. Further, when a protrusion is provided on the insulator 232, and when hollows are provided on the conductive members 231a, 231b, the attachment may be made by engagement with each other.
  • the main body switch element 233 is provided with an insulator 230 made of resin, and a pair of conductive members 233a, 233b are provided on one side of the insulator 230 (the lower left side of the insulator 230 in Fig. 40).
  • the conductive members 233a, 233b are positioned on, and penetrating in, the rim of the end member 235.
  • the basements of the conductive members 233a, 233b are connected to lead wires 234, 236 respectively.
  • the insulator 230 there is another insulator 238 provided on the insulator 230 on the other side of the conductive members 233a, 233b.
  • the insulator 238 serves to present the same thickness as those of the conductive members 233a, 233b, so that the lever member switch element 231 may not be tilted due to difference of thickness of the lever member switch element 231 at several positions.
  • the other structure is the same as that of the sixth embodiment of the present invention.
  • the positions of the conductive members 233a, 233b can be determined automatically. Therefore, it is no longer necessary to determine the position of the main body switch element 233 during assembly.
  • the space between the conductive members 233a, 233b becomes shorter than the case of the sixth embodiment, the overall weight as well as the material cost can be reduced.
  • the idle mechanism 301 comprises a leaf spring member 301a attached to the lever member 229 of the throttle lever 215 and a protrusion 301b protruding from the end member 225.
  • the ninth embodiment is a variation of position of attachment of the idle mechanism 301 of the eighth embodiment. That is, as illustrated in Fig. 43, the leaf spring member 301a of the idle mechanism 301 is attached to the side surface of the knob 229b of the lever member 229, and the protrusion 301b is also attached to the side surface of the end member 235. According to the ninth embodiment, the same function and effect as those of the eighth embodiment can be obtained.
  • FIG. 44 A tenth embodiment of the present invention will now be described with reference to Fig. 44.
  • the present invention is applied to a different type of mower.
  • a pair of handle members 412, 414 are provided on the hollow shaft 205, and the throttle lever 215 is attached to the handle member 412.
  • the eleventh embodiment is a variation of structure of the throttle lever of the first embodiment. That is, the throttle lever 215 according to the sixth through tenth embodiments of the present invention is applied to the first embodiment.
  • a twelfth embodiment of the present invention will now be described with reference to Fig. 46.
  • the twelfth embodiment refers to an atomizer to which the present invention is applied.
  • An atomizer 501 is provided with a tank 503, and is also provided with an engine 505 under the tank 503.
  • the throttle lever 19 according to the first embodiment as above discussed is attached to this atomizer 501 in order to control the revolution speed of the engine 505.
  • a thirteenth embodiment of the present invention will now be described with reference to Fig. 47.
  • the thirteenth embodiment refers to a pump to which the present invention is applied.
  • a pump 601 is provided with an engine 603 and a pump section 605.
  • the throttle lever 19 incorporating the engine stop switch 23 according to the first embodiment as above discussed is provided on this pump 601 in order to control the revolution speed of the engine 603 as well as to stop the engine 603 immediately.
  • a fourteenth embodiment of the present invention will now be described with reference to Fig. 48. According to the fourteenth embodiment, the position of the lever member switch element 231 of the sixth embodiment as above discussed can be adjusted.
  • Fig. 48 is a view that the lever member switch element 231 is seen from the reverse side of Fig. 32, that is, seen from the side of the lever member switch element 231.
  • the conductive member 231b has been formed so as to have a hollow, and an elongated groove 701 in a shape of arc is formed in this hollow of the conductive member 231b.
  • This elongated groove 701 is also formed in the insulator 230 positioned under the conductive member 231b, and the elongated groove 701 is fixed by a screw member 703 penetrated in the lever member 229.
  • the screw member 703 is loosened, thus the lever member switch element 231 can be rotated within the length of the elongated groove 701.
  • the screw member 703 is fastened again.
  • the position of the lever member switch element 231 can be adjusted, thereby the timing of stopping of the engine 209 can be adjusted.
  • the fifteenth embodiment is a variation of the pump 601 of the thirteenth embodiment to which the present invention is applied.
  • the lever member 29 is rotated in the clockwise direction of Fig. 49. Consequently, a function member 29c protruding from the lever member 29 rotates in the direction of main body of the pump 601, thereby a contact point 801 attached to the function member 29c becomes in contact with a resin member 803.
  • a kind of idle state is obtained.
  • FIG. 50 there is a groove 907 on the end member 235.
  • FIG. 48 there is a skirt 903 protruding from the lever member 231.
  • the shape of the skirt 903 may be thinner so as to be deformed easily, so that the skirt 903 may be in close contact with the end member 235 easily. Further, there may be a seal 902 provided between the skirt 903 and the end member 235, as illustrated in Fig. 52, in order to obtain higher waterproofing effect.
  • the seal 902 may be replaced by a waterproof sheet. Further, the seal function may also be obtained if the washer 24 according to the sixth embodiment, as illustrated in Fig. 36, is made of resin.
  • FIG. 29 A seventeenth embodiment of the present invention will now be described with reference to Figs. 29, 53 and 54.
  • the metal fitting 237 attached to the outside of the end member 235, and the throttle lever 215 is attached to the hollow shaft 205 via this metal fitting 237.
  • the metal fitting 237 is inserted from the inside of the end member 235, thus it is impossible to detach the metal fitting 237 from the outside.
  • the metal fitting 237 may be detached from the outside.
  • grooves 1001, 1001 are formed on the surface of the end member 235 facing the outside.
  • the metal fitting 237 has a flange 237a at the end thereof, and the flange 237a is inserted from the outside via the grooves 1001, 1001.
  • the grooves 1003, 1003 are not exposed to the outside.
  • the flange 237a of the metal fitting 237 is first inserted from the grooves 1001, 1001, and then moved in the inside toward the grooves 1003, 1003, so that the flange 237a is engaged with the grooves 1003, 1003. Accordingly, the metal fitting 237 is attached to the end member 235. When the metal fitting 237 is detached, the procedures in the reverse order may be applied.
  • the attachment and detachment of the metal fitting 237 can be carried out from the outside of the end member 235, the attachment and detachment of the throttle lever 215 (for example, change of attachment position, change of angle, etc.) can be made easily.
  • the eighteenth embodiment relates to an example that the idle mechanism as discussed in the eighth and ninth embodiments is incorporated in the throttle lever. As illustrated in Fig. 55, there is a protrusion 1005 protruding from the main body switch element 233.
  • the lever member 229 When the lever member 229 is rotated, the lever member 229 goes over this protrusion 1005. At that time, the resistance force occurs, thereby the operator 203 may confirm that the present position of the lever member 229 is just before the engine stop position. When the operator 203 further rotates the lever member 229, the engine stop switch 223 is actuated, and the engine 209 is stopped.
  • the structure outside the throttle lever 215 may be simplified.
  • the nineteenth embodiment relates to an example of structure of attachment of the throttle lever to the hollow shaft 205.
  • the nineteenth embodiment relates to an example of structure of attachment of the throttle lever to the hollow shaft 205.
  • There is a metal fitting 1007, and engagement hollows 1009, 1009 are formed in the upper part of the metal fitting 1007 in Fig. 56.
  • the metal fitting 1007 is placed over the hollow shaft 205, in a manner that the engagement hollows 1009, 1009 are respectively engaged with the engagement protrusions 1011, 1011.
  • a screw member 1013 is inserted from the outside of the metal fitting 1007 into the throttle lever, so that the metal fitting 1007 may be attached to and fixed on the throttle lever.
  • the attachment and detachment of the metal fitting 1007 in regard to the throttle lever from the outside can also be made easily, the attachment and detachment of the throttle lever can be carried out easily.
  • the twentieth embodiment relates to a different type of throttle lever from that in the first through nineteenth embodiments discussed above, to which the present invention is applied.
  • the throttle lever according to the present embodiment is attached to the lower part of the hollow shaft 205, in a state that the throttle lever may be detached.
  • FIG. 59 and 60 there is an engine positioned on the right side, and there is an unillustrated cutter blade attached to the left side.
  • the lever member 1023 has a coil spring 1025 attached thereto, and this coil spring 1025 always applies force to the lever member 1023 in the direction of L in Figs. 59 and 60 (that is, the direction of reducing the fuel supply in order to decelerate the engine revolution speed).
  • the lever member 1023 is rotated in the direction of H in Figs. 59 and 60 (that is, the direction of increasing the fuel supply in order to accelerate the engine revolution speed) against the force applied by the coil spring 1025, the engine revolution speed may be accelerated.
  • an engine stop switch 1027 provided at the space between the main body case 1021 and the lever member 1023. That is, there is a lever member switch element 1029 at the end of the lever member 1023, and there are also main body switch elements 1031, 1033 on the main body case 1021. Further, an idle plate 1035 is attached to the main body switch element 1031, and another idle plate 1037 is also attached to the main body switch element 1033.
  • an operation part thereof is in a forked shape, and an operation tip 1023a and an operation tip 1023b are provided.
  • the four fingers of an operator other than the thumb are inserted in the space between the operation tip 1023a and the operation tip 1023b, and the thumb of the operator is placed on the hollow shaft 205.
  • the four fingers of the operator other than the thumb are inserted in the space between the operation tip 1023a and the operation tip 1023b, and the thumb is placed on the hollow shaft 205.
  • the lever member 1023 is rotated in an appropriated direction, thereby the engine revolution speed is controlled and the working is carried out.
  • the coil spring 1025 always applies force to the lever member 1023 in the direction of L, when the operator loosens the grip force applied to the lever member 1023, the engine revolution speed is automatically decelerated.
  • the lever member 1023 is rotated in the direction of H, thus the engine revolution speed may be accelerated.
  • the engine may also be stopped when the lever member 1023 is rotated in the opposite direction, that is, in the direction of H. That is, the top of the lever member switch element 1029 first becomes in contact with the idle plate 1037, and when the lever member 1023 is further rotated, the top of the lever member switch element 1029 goes over the idle plate 103, and then becomes in contact with the main body switch element 1033. Accordingly, the electric circuit is short-circuited, and the engine is stopped.
  • the present embodiment is not limited to the first through twentieth embodiments described above.
  • the present invention may be applied to a cargo carrier, rice planting machine, harvester, binder, combine harvester, slow plow, tea leaf picker, etc.
  • the engine 3 may be stopped by rotating the throttle lever 15 in any one of the directions. However, the engine 3 may also be stopped only when the throttle lever 15 is rotated in one direction.
  • the lever member switch element and the main body switch element are prepared as the separate parts from the main body or the end members, so that these switch elements may be incorporated therein during assembly.
  • the fuel supply may also be cut at the same time. Consequently, as compared with the case of mere short-circuiting of the electric circuit, the engine 9 may be stopped without fail.
  • the engine 9 can be stopped immediately by rotating the lever member 29 by more than the predetermined amount in the direction of decelerating the revolution speed of the engine 9.
  • the fuel may be supplied as little as possible, so that the engine may be restarted promptly. Further, at the immediate engine stop, the fuel supply may be cut.
  • the cut of fuel supply can be made by adjusting the connection of the wire 19 to the engine 9, that is, by shutting a fuel supply control valve of a carburetor of the engine 9 in order to cut the fuel supply.
  • the adjustment thereof can be carried out by adjusting an idling adjustment member of the fuel supply control valve of the carburetor.
  • the part of the engine stop switch may be covered by waterproofing means.
  • waterproofing means there may be provided a waterproofing cap 701 shown by virtual line in Fig. 28, or there may be also provided a waterproofing cap 705 shown by virtual line in Fig. 47.

Landscapes

  • 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)
  • Harvester Elements (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
EP99308364A 1998-04-28 1999-10-22 Levier d' accélérateur pour machine agricole Withdrawn EP1094211A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP10119422A JPH11315731A (ja) 1998-04-28 1998-04-28 作業機のスロットルレバ
CA002287467A CA2287467A1 (fr) 1998-04-28 1999-10-22 Manette de regime pour une machine
EP99308364A EP1094211A1 (fr) 1998-04-28 1999-10-22 Levier d' accélérateur pour machine agricole
CN99123633.5A CN1295185A (zh) 1998-04-28 1999-10-27 工作机油门杆

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10119422A JPH11315731A (ja) 1998-04-28 1998-04-28 作業機のスロットルレバ
CA002287467A CA2287467A1 (fr) 1998-04-28 1999-10-22 Manette de regime pour une machine
EP99308364A EP1094211A1 (fr) 1998-04-28 1999-10-22 Levier d' accélérateur pour machine agricole
CN99123633.5A CN1295185A (zh) 1998-04-28 1999-10-27 工作机油门杆

Publications (1)

Publication Number Publication Date
EP1094211A1 true EP1094211A1 (fr) 2001-04-25

Family

ID=27427554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99308364A Withdrawn EP1094211A1 (fr) 1998-04-28 1999-10-22 Levier d' accélérateur pour machine agricole

Country Status (4)

Country Link
EP (1) EP1094211A1 (fr)
JP (1) JPH11315731A (fr)
CN (1) CN1295185A (fr)
CA (1) CA2287467A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1637731A3 (fr) * 2004-09-16 2007-08-01 Komatsu Zenoah Co. Dispositif de commande d'un moteur
WO2009044934A1 (fr) * 2007-10-04 2009-04-09 Hitachi Koki Co., Ltd. Groupe moteur portable
CN104727964A (zh) * 2013-12-21 2015-06-24 安德烈·斯蒂尔股份两合公司 用于运行带有内燃机的手持式工作器械的方法

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Publication number Priority date Publication date Assignee Title
CN101725417B (zh) * 2008-10-20 2012-08-08 江苏林海动力机械集团公司 发动机用停火机构
JP5056740B2 (ja) * 2008-12-11 2012-10-24 日立工機株式会社 手持ちエンジン作業機
CN103907413B (zh) * 2012-06-08 2015-12-02 日照市立盈机械制造有限公司 具有安全可靠性的微耕机
CN103299777B (zh) * 2013-06-21 2015-11-25 苏州金威特工具有限公司 一种割草机油门控制机构
JP6799379B2 (ja) * 2016-03-23 2020-12-16 株式会社マキタ 作業機
CN110546364B (zh) * 2018-03-28 2022-05-03 本田技研工业株式会社 发动机操作装置和作业机

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JPH03264738A (ja) * 1990-03-14 1991-11-26 Maruyama Mfg Co Ltd エンジンスロットル制御装置
US5842277A (en) * 1995-04-06 1998-12-01 Andreas Stihl Ag & Co. Hand-held working tool, especially trimmer
JPH099702A (ja) * 1995-06-29 1997-01-14 Shigeki Sano 耕耘機における操作ハンドル握手部のエンジン停止機構
JPH09315179A (ja) * 1996-06-03 1997-12-09 Shigeki Sano 農林業用作業機のエンジン停止機構
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1637731A3 (fr) * 2004-09-16 2007-08-01 Komatsu Zenoah Co. Dispositif de commande d'un moteur
WO2009044934A1 (fr) * 2007-10-04 2009-04-09 Hitachi Koki Co., Ltd. Groupe moteur portable
CN104727964A (zh) * 2013-12-21 2015-06-24 安德烈·斯蒂尔股份两合公司 用于运行带有内燃机的手持式工作器械的方法
CN104727964B (zh) * 2013-12-21 2019-06-14 安德烈·斯蒂尔股份两合公司 用于运行带有内燃机的手持式工作器械的方法

Also Published As

Publication number Publication date
JPH11315731A (ja) 1999-11-16
CN1295185A (zh) 2001-05-16
CA2287467A1 (fr) 2001-04-22

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