WO2005005225A1 - エンジン駆動式作業機 - Google Patents
エンジン駆動式作業機 Download PDFInfo
- Publication number
- WO2005005225A1 WO2005005225A1 PCT/JP2004/009715 JP2004009715W WO2005005225A1 WO 2005005225 A1 WO2005005225 A1 WO 2005005225A1 JP 2004009715 W JP2004009715 W JP 2004009715W WO 2005005225 A1 WO2005005225 A1 WO 2005005225A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- engine
- handle
- frame
- driven
- working machine
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
- B62B1/18—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows
- B62B1/20—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible
- B62B1/208—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible foldable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/06—Hand moving equipment, e.g. handle bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0006—Bumpers; Safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0026—Propulsion aids
- B62B5/0033—Electric motors
- B62B5/0036—Arrangements of motors
- B62B5/005—Detachably mounted motor units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/06—Hand moving equipment, e.g. handle bars
- B62B5/062—Hand moving equipment, e.g. handle bars elastically mounted, e.g. for wheelbarrows
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2501/00—Manufacturing; Constructional features
- B62B2501/06—Materials used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/06—Hand moving equipment, e.g. handle bars
- B62B5/067—Stowable or retractable handle bars
-
- 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
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/044—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators the engine-generator unit being placed on a frame or in an housing
- F02B2063/046—Handles adapted therefor, e.g. handles or grips for movable units
Definitions
- the present invention relates to a frame including a bottom frame, a pair of left and right side frames sharing the left and right sides, and a wheel rotatably supported on the bottom frame so as to be rotatable in the front-rear direction of the frame.
- Mounted on the bottom frame including an engine and a working machine driven by the engine, and a moving handle provided at an end in the front-rear direction of the frame.
- the present invention relates to an improvement in an engine-driven working machine that facilitates movement by rolling the wheels by operation.
- Patent Document 1 Japanese Patent Application Laid-Open No. 10-89083
- the present invention has been made in view of the circumstances, and when the moving handle is not used, it can be folded compactly to facilitate work without being disturbed by the handle.
- the engine-driven work machine which enables storage in a relatively small storage space, and uses the handle to protect the load on the frame from contact with other objects. The purpose is to do.
- the present invention provides a frame including a bottom frame, a pair of left and right side frames sharing the left and right side portions, and the bottom frame is rotated in the front-rear direction of the frame.
- Possible An engine-driven work comprising a wheel supported by a shaft, a load supported by the bottom frame including an engine and a work implement driven by the same, and a moving handle provided at an end in the front-rear direction of the frame.
- the moving handle is composed of a pair of left and right handlebars having a handle lip at the tip and a cross member connecting the intermediate portions of the handlebars integrally with each other.
- both handlebars can rotate between a use position extending from the frame and a storage position functioning as a pump in cooperation with the cross member with the handle grip facing downward.
- the first feature is that it is attached to
- the handlebar in the retracted position of the moving handle, the handlebar may be in contact with an end of the bottom frame that protrudes outward from the load. This is the second feature.
- the present invention mounts on the frame electrical components for the engine and the working machine such that the electrical components are protected by the moving handle in the storage position. This is the third feature.
- a control box for accommodating and holding electrical components for the engine and the working machine is provided on the bottom frame and the front and rear ends of the both frames.
- a fourth feature is that this is mounted so as to be protected by the moving handle in the storage position.
- the moving handle is attached to a handle bracket fixedly mounted on an upper portion of the frame, and a use position at which the handle projects from the frame;
- the handle grip is mounted so that it can rotate between the storage position with the handle grip facing downward, and when the handle is rotated to the use position between the handle bracket and the moving handle, the handle is automatically used.
- a fifth feature is that a lock mechanism for locking the position is provided.
- the present invention provides, in addition to the fifth feature, an operation lever rotatably supported by the moving handle between a lock position and an unlock position, and an operation lever provided on the operation lever.
- a locking member provided on the handle bracket, the locking groove engaging and disengaging the locking member according to rotation of the operating lever to a locked position and an unlocked position;
- a sixth feature is that the lock mechanism is constituted by a lock spring that biases the operation lever in the direction of the lock position.
- the present invention provides a cushion between the handle bracket and the moving handle, which elastically deforms while the handle reaches a use position immediately before the use position.
- a seventh feature is that a damper having a member is provided.
- the present invention provides, in addition to the seventh feature, a cushion member attached to one of the handle bracket and the moving handle, and the moving handle is fitted around the cushion member.
- the damper is composed of a bush that is pressed from the other of the handle bracket and the moving handle to give elastic deformation to the cushion member while the force immediately before the position reaches the use position.
- the moving handle when the moving handle is not used, it can be folded compactly by rotating the moving handle to the storage position, so that the engine is not obstructed by the handle.
- the work by the drive-type working machine can be easily performed, and a relatively small storage space is sufficient for storing the engine-driven work machine in a warehouse or the like, and the handle functions as a pump so that the dedicated bumper can be used. Even without the provision of, the load on the frame can be protected from contact with other objects.
- the moving handle rotated to the storage position can form a strong bumper in cooperation with the frame, and can be mounted on the frame. The ability to protect S strongly.
- the electrical component can be protected from contact with other objects by the moving handle turned to the storage position.
- a relatively large control box for accommodating electrical components can be moved to a storage handle rotated to a storage position without providing a special guard frame. And the bottom frame of the frame can be effectively protected. Therefore, the main body of the large control box can be made of synthetic resin to reduce its weight.
- the moving handle when the moving handle is not used, it can be folded compactly by rotating it to the storage position, so that the hand can be folded. Work can be easily performed without being disturbed by tools, and a relatively small storage space is sufficient when storing the work equipment in a warehouse.
- an automatic locking mechanism When the moving handle is turned to the use position, an automatic locking mechanism is activated to lock the handle to the use position, so that the handle may be released during use of the handle.
- the rotation of the handle to the storage position due to its own weight can be prevented, and the operability of the handle is good.
- the handle when the moving handle is turned to the use position, the handle can be automatically and securely locked at the use position, and the operation lever can be unlocked.
- the handle is released from the locked state by a simple operation of turning to the locked position, and the handle can be turned to the storage position.
- the rotational shock to the use position of the moving handle can be absorbed by the elastic deformation of the cushion member of the damper, and the force of use of the handle can be reduced.
- the repulsive force of the cushion member acts on the lock mechanism to prevent rattling of the lock mechanism.
- the bush when the damper is operated, the bush abuts against the other of the handle bracket and the moving handle, and is pressed, so that the cushion member has the right and left brackets. Also, direct contact with the other of the moving handle can be prevented, and the durability of the cushion member can be enhanced.
- the working machine corresponds to a generator 4 in an embodiment of the present invention described later, and an engine-driven working machine corresponds to the engine-driven generator 1.
- the electrical components correspond to the control unit 53 and the inverter 55 in the embodiment, the control box corresponds to the intake box 34 in the embodiment, and the locking member corresponds to the locking pin 105 in the embodiment. .
- FIG. 1 is a side view of an engine-driven generator according to the present invention, showing a moving handle in use.
- FIG. 2 is a plan view of the engine-driven generator.
- FIG. 3 is a front view of the engine-driven generator.
- FIG. 4 is a front view of the engine-driven generator when the moving handle is in a retracted state.
- FIG. 5 is a front view of the engine-driven generator shown with the box body of the intake box removed.
- FIG. 6 is a rear view of the engine-driven generator.
- FIG. 7 is a rear view of the engine-driven generator shown with a part of the exhaust box cut away.
- FIG. 8 is an exploded perspective view of a part of the engine-driven generator.
- FIG. 9 is a sectional view taken along line 9-9 in FIG.
- FIG. 10 is a sectional view taken along line 10-10 of FIG.
- FIG. 11 is a sectional view taken along line 11-11 in FIG. 3.
- FIG. 12 is a sectional view taken along line 12-12 of FIG.
- FIG. 13 is a sectional view taken along line 13-13 of FIG. 2.
- FIG. 14 is a sectional view taken along line 14-14 of FIG.
- FIG. 15 is an enlarged view of the moving handle portion of FIG. 1.
- FIG. 16 is a sectional view taken along line 16-16 of FIG.
- FIG. 17 is a sectional view taken along line 17-17 of FIG.
- FIG. 18 is a sectional view taken along line 18-18 in FIG.
- FIG. 19 is a sectional view taken along line 19-19 of FIG.
- FIG. 20 is a sectional view taken along line 20-20 in FIG. 9.
- an engine-driven generator 1 includes a frame 2, an engine 3 and a generator 4 elastically supported below the frame 2, and an upper portion of the frame 2. It has a fuel tank 5 to be mounted and a control unit 53 for the engine 3 and the generator 4.
- the frame 2 is composed of a bottom frame 2a formed by bending a steel pipe in a U-shape and a steel pipe connected to both ends of the bottom frame 2a. It consists of left and right side frames 2b, 2b that are bent horizontally and cooperate with the left and right sides of the bottom frame 2a.
- the bottom frame 2a is provided with a plurality of lower cross members 7, 7, ... that connect between the left and right sides, and is connected between upper portions of the vertical sides of the both sides frames 2b, 2b.
- An intermediate cross member 8 is provided, and an upper cross member ⁇ for connecting the upper inclined corners of both side frames 2b, 2b is provided.
- the intermediate cross member 8 has a longitudinally intermediate portion projecting outward from both side frames 2b, 2b so as to also serve as a bumper.
- a hanger member 9 for connecting the intermediate portions thereof, and the hanger member 9 is used for lifting the engine-driven generator 1.
- the frame 2 is configured as a frame with an open periphery.
- the open side of the U-shaped side frames 2b, 2b is the front side
- the closed side of the same side frames 2b, 2b, ie, the intermediate cross member 8 side is the rear side. I do.
- two of the lower cross members 7, 7,... are provided with two pairs of support plates 10, 10,;
- the members 11 and 11 are provided via the members 11 and 11.
- the left and right side frames 2b, 2b are provided with a pair of left and right and two pairs of upper and lower brackets 12, 12; 13, 13 which are vertically arranged on the front side of the frame 2; Reinforcing stays 14, 14 extending forward from the upper end of the vertical side of each corresponding side frame 2b are connected to the lower part.
- a pair of left and right bracket pieces 16, 16 are provided at the front ends of these reinforcing stays 14, 14.
- a duct member defining a series of cooling air passages 32 between the engine 3 and the generator 4 while surrounding the cooling fan 26 is provided.
- the rotation of the cooling fan 26 allows the cooling air to flow from the upstream end on the cooling fan 26 side to the downstream end on the rear side of the engine 3.
- the duct member 31 is divided into a plurality of parts in order to facilitate its manufacture, and an appropriate portion is bolted to an outer peripheral surface of the engine 3.
- the engine 3 is of a four-cycle type, in which the crankshaft 17 is arranged in the front-rear direction of the engine-driven generator 1, and its cylinder portion 19 is It protrudes obliquely upward to one side from a crankcase 18 that accommodates and supports the crankshaft 17, and an intake port and an exhaust port are opened on the front and rear surfaces of the cylinder portion 19, respectively.
- the generator 4 includes a stator 22 fixed to the front end surface of the crankcase 18 with a plurality of bolts 21 and including a plurality of stator coils 22a , and a crank extending through the front end wall of the crankcase 18 and extending forward.
- the rotor 17 is fixed to the front end of the shaft 17 and has a plurality of permanent magnets 23a arranged on the inner peripheral surface thereof.
- the rotor 23 has a hub 23b surrounded by the stator 22.
- the hub 23b is taperedly fitted to the end of the crankshaft 17, and is fixed to the end of the crankshaft 17 by a key 24 and a nut 25. You.
- the rotor 23 is cantilevered on the crankshaft 17.
- a centrifugal cooling fan 26 having a larger diameter and corresponding to the inner diameter of the duct member 31 and a recoil starter 27 projecting forward from the cooling fan 26 are attached to the outer end surface of the rotor rotor 23. .
- a ring gear 28 is fixed to the rear end of the crankshaft 17, and the ring gear 28 is driven via a pinion 29 and an overrunning clutch (not shown).
- a starter motor 30 is mounted on the upper part of the crankcase 18.
- a rectangular intake box 34 that forms the contour of the front of the engine-driven generator 4 when viewed from the front is provided at the front of the frame 2.
- the intake box 34 is made up of a synthetic resin box body 36 having an open rear surface, and a steel plate end plate 37 connected to the box body 36 so as to close the open rear surface.
- the brackets 12 and 13 are detachably fixed to the brackets 12 and 13 with a plurality of bolts 35, and the box body 36 is detachably bolted to an end plate 37.
- the frame 2 is composed of a U-shaped bottom frame 2a and a pair of left and right U-shaped side frames 2b sharing the left and right sides of the bottom frame 2a with one steel pipe. 2b and both side frames 2b, 2b
- the structure is extremely simple because the space between them is connected by a plurality of cross members 7, 8, 8 ', and the frame 2 also has an intake box 34 detachably connected to its open front end.
- the frame 2 can be made lightweight.
- the engine 3 and the generator 4 can be attached and detached from the front side of the frame 2 that is opened, and maintenance thereof can be performed easily.
- a first intake louver 38a is provided on the front surface of the box body 36, a second intake louver 38b is provided on the end plate 37, and a large-diameter first connection port 39 adjacent to the upstream end of the duct member 31 is provided.
- a second connection port 40 having a small diameter is provided, and an annular first seal member 41 made of an elastic material such as rubber is attached to the periphery of the first connection port 39.
- the seal lip 41a which is rich in flexibility, is fitted hermetically around the outer periphery of the duct member 31.
- the first seal member 41 communicates between the intake box 34 and the duct member 31 while allowing the relative displacement of the duct member 31 and the intake box 34 by the elastic deformation of the seal lip 41a.
- the upstream end of the dart member 31 is formed of a starter cover 31a, which will be described later, so as to protrude into the intake box 34, and a number of ventilation holes 116a and 116b are provided in the end wall and the peripheral wall of the starter cover 31a. (See Figure 20).
- the cross-sectional area of the intake box 34 is larger than the total opening area of the ventilation holes 116a and 116b, and constitutes a noise reduction expansion chamber.
- the recoil starter 27 is joined to a cup-shaped driven member 111 fixed to the outer end surface of the outer rotor 23 and to an upstream end of the duct member 31 so as to cover the same.
- the pulley 114 is provided with a one-way clutch 115 for connecting the rope pulley 114 and the driven member 111 only when the rope pulley 114 rotates forward by pulling the rope.
- the rope pulley 114 is urged in the reverse direction by a return spring (not shown).
- a large number of ventilation holes 112 are formed in the rope pulley 114 so that the rope pulley 114 does not obstruct the flow of cooling air in the duct member 31.
- the starter rope 113 is drawn out of the intake box 34 through grommet-shaped rope guides 118 and 119 provided on the side walls of the starter cover 31a and the intake box 34, respectively.
- the operation knob 117 is connected to the outer end.
- the operating knob 117 is supported at the outer end of the outer rope guide 119 in the retracted position.
- the outer portion of the intake box 34 where the operation knob 117 of the recoil starter 27 is disposed hits the outermost portion of the engine-driven generator 1, so that the towing operation of the operation knob 117 can be performed by another object. It can be performed easily without interference, and the starting operability is good.
- a carburetor 44 is mounted on the front surface of the cylinder section 19 of the engine 3.
- the carburetor 44 penetrates through the side wall of the duct member 31 and is exposed outside the duct member 31, and an air cleaner 45 also provided outside the duct member 31 connects the elastic communication tube 46 made of an elastic material such as rubber.
- the carburetor 44 is connected to the inlet of the intake passage.
- the high tension cord 43 connected to the ignition plug of the engine 3 also passes through the side wall of the duct member 31 and is drawn out to the outside.
- the air cleaner 45 has a substantially rectangular shape that is long in the axial direction of the crankshaft 17 of the engine 3 in a side view, and at least a part of the air cleaner 45 is located on one side of the crankcase 18. It is arranged so as to be below the cylinder part 19 that has been turned upward. This makes it possible to install a relatively large-capacity air cleaner 45 that lowers the center of gravity of the engine-driven generator 1.
- the air cleaner 45 has a cleaner case 47 fixed to the outer surface of the duct member 31 by bolts 50 to open the outer surface, and an open surface of the cleaner case 47. It is composed of a case cover 48 that is connected to the cleaner case 47 with bolts 51 so as to close it, and a cleaner element 49 that is sandwiched between the cleaner case 47 and the case cover 48.
- An air inlet pipe 47a communicating with the unpurified surface side is integrally provided.
- FIG. 3 An annular second seal member 42 made of an elastic material such as rubber is attached to the periphery of the second connection port 40, and an annular and flexible seal lip 42a of the second seal member 42 is provided.
- the air cleaner 45 is fitted around the outer periphery of the air cleaner 47a. Due to the elastic deformation of the seal lip 42a, the second seal member 42 moves relative to the duct member 31 elastically supported on the frame 2 via the engine 3 and the intake box 34 fixedly supported on the frame 2. Communication between the intake box 34 and the air cleaner 45 while allowing [0049] In Figs. 3, 5 and 9, the intake box 34 has an operation window 52 at the upper part of the front surface thereof, and is disposed above the first connection port 39 in the intake box 34.
- the operation panel 53a of the control unit 53 for 3 and the generator 4 faces this operation window 52.
- the control panel 53a is fixed to the inner surface of the rear wall of the intake box 34 by bolts 54.
- the control unit 53 and the inverter 55 are installed between the first intake louver 38a and the first connection port 39, and the battery 61 is connected between the first intake louver 38a and the second connection port 40.
- the upstream end of the duct member 31 protruding from the first connection hole 39 into the intake box 34, that is, the starter cover 31 a is disposed close to the rear surface of the inverter 55.
- the inverter 55 (see FIG. 5 in particular) supports a plurality of support shafts 56 projecting from the lower end surface of the inverter 55 on the bottom wall of the intake box 34 via grommets 57 and a plurality of ear pieces at the upper end.
- a sufficient ventilation gap is provided around the inverter 55 so as not to obstruct the flow of air from the first and second intake louvers 38a, 38b to the first and second connection ports 39, 40.
- the battery 61 is held on the end plate 37 by a rubber band 62. At this time, a sufficient ventilation gap is provided around the battery 61 so as not to obstruct the flow of air from the first and second intake louvers 38a, 38b to the second connection port 40.
- an inspection window 64 (see Fig. 8) that can be closed with a lip 63 is provided on the front wall of the intake box 34.
- a mounting flange 67 is formed at the downstream end of the duct member 31, and an exhaust box 68 is mounted on the mounting flange 67.
- the exhaust box 68 has an exhaust louver 73 at the upper part of the rear surface and a box body 68 having an open front surface, and an end plate 70 joined to a flange portion 68a of the box body 69 so as to close the open surface.
- the end plate 70 and the flange portion 68a are fixed to the mounting flange 67 with a plurality of bolts 71.
- the end plate 70 of the exhaust box 68 is provided with large and small through holes 72, 75 (see Fig. 7), through which the downstream end of the duct member 31 and the exhaust box are connected.
- the interior is connected to 68.
- the cross-sectional area of the exhaust box 68 is sufficiently larger than the opening areas of the through holes 72 and 75, and constitutes a sound deadening expansion chamber.
- the exhaust box 68 houses an exhaust muffler 74 attached to the rear surface of the cylinder section 19 of the engine 3 and an outlet pipe 74a of the exhaust muffler 74.
- the end of the outlet pipe 74a is located at the end of the exhaust box 68. Open far away from the exhaust louver 73.
- a sufficient ventilation gap is provided to allow the flow of cooling air from each of the through holes 72, 75 to the exhaust louver 73.
- the fuel tank having an oil filler cap 5a on the upper wall is provided above the duct member 31 covering the engine 3 and the generator 4. 5 is installed.
- the fuel tank 5 has a substantially square shape in a plan view and covers the entire surface of the duct member 31 over its entire length.
- the four corners of the mounting flange 77 projecting from the outer periphery of the fuel tank 5 are formed by the four corners.
- the frame 2 is detachably attached to the upper cross member ⁇ and the bracket pieces 16, 16 with bolts 79.
- the fuel tank 5 is elastically supported by the frame 2.
- the upper cross member 8 of the frame 2 that supports the rear end of the mounting flange 77 of the fuel tank 5 has a bent edge 77 a bent downward from the mounting flange 77.
- a gutter 80 is formed, and both ends of the gutter 80 communicate with the outer peripheral surfaces of the vertical sides of the left and right side frames 2b, 2b through the outflow holes 81.
- the outlet hole 81 is formed in a notch at the welded portion of the cross member 8 'to the left and right side frames 2b, 2b.
- a slope 5b is formed, which descends toward the gutter 80 and reaches the mounting flange 77.
- the degree of freedom in layout can be greatly expanded. Since the gutter 80 is formed by using the cross member 8 which is a reinforcing member of the frame 2, the structure can be simplified, and the force is applied to both ends of the cross member 8 ′. By forming the notches 81, it is possible to avoid a decrease in the strength of the frame 2.
- the duct member 31, the exhaust box 68, and the fuel tank 5 are arranged in the frame 2.
- the generator 4 When the engine 3 is operated, the generator 4 is driven by the rotating crankshaft 17 to generate electric power. The output is controlled by the inverter 55 and the control unit 53, and Removed from outlet on panel 53a.
- the gas flows to the downstream end, passes through the exhaust box 68, and is discharged from the exhaust louver 73 to the outside.
- Such a flow of cooling air cools the control unit 53 and the inverter 55 in the intake box 34, cools the engine 3 and the generator 4 in the duct member 31, and cools the exhaust muffler in the exhaust box 68. 74 is cooled.
- the upstream end of the duct member 31, ie, the starter cover 31a having the ventilation holes 116a and 116b, is disposed close to the back of the inverter 55 in the intake box 34, so that the air around the inverter 55 As a result, the inverter 55 can be effectively cooled, and the inverter 55 can be cooled effectively.
- the exhaust gas discharged from the outlet pipe 74a of the exhaust muffler 74 can be mixed with the cooling air in the exhaust box 68 to lower the exhaust temperature, and at the same time, to effectively reduce the exhaust noise. Can be.
- the cooling fan 26 has a large diameter corresponding to the inner diameter of the duct member 31 and can be easily attached by using the wide outer end surface of the outer rotor 23 cantilevered on the crankshaft 17. As a result, the cooling effect of the engine 3 and the generator 4 can be enhanced.
- the duct member 31 functions as a soundproof wall of the engine 3, the generator 4, and the cooling fan 26. Even if the operation noise is transmitted from the upstream end and the downstream end of the outer member 31 to the intake box 34 and the exhaust box 68, the intake box 34 and the exhaust Due to the expansion silencing effect of the box 68, the above operation noise can be effectively silenced, and leakage of the operation noise to the outside can be prevented as much as possible.
- the control unit 53 and the inverter 55 are disposed between the first connection port 39 and the first intake louver 38a, the control unit 53 and the inverter 55 are connected to the first connection port 39 and the first intake port.
- the control unit 53 and the inverter 55 are connected to the first connection port 39 and the first intake port.
- the fuel tank 5 covers the upper surface of the duct member 31 over its entire length, so that the fuel tank 5 cooperates with the duct member 31 to form a double soundproof wall for the engine 3 and the generator 4.
- the operating noise of the engine 3 and the generator 4 is effectively prevented from leaking upward, and the quietness of the engine-driven generator 1 can be further improved with a simple structure.
- the relatively large fuel tank 5 as described above is mounted on the upper portions of the left and right side frames 2b, 2b, so that it can be easily mounted and removed. Since it is detachable from the frame 2, removing the fuel tank 5 and the intake box 34 allows the top and front surfaces of the frame 2 to be opened and the engine 3 and generator 4 to be easily attached and detached. And maintainability thereof can be improved.
- the intake noise of the engine 3 is also effectively silenced by the intake box 34.
- the battery 61 in the intake box 34 serves as a sound-insulating partition between the second connection port 40 and the first intake louver 38a, preventing leakage of intake noise to the outside, and further improving the noise reduction effect of the intake box 34. it can.
- the operating noise and the like of the engine 3, the generator 4, and the cooling fan 26 are reduced by the duct member 31 that covers the engine 3 and the generator 4, and the intake and exhaust boxes 34 connected to the upstream and downstream ends thereof. , 68, the duct member 31 and the intake and exhaust boxes 34, 68 are arranged in the open frame 2 so that the engine can be driven.
- the engine-driven generator 1 can be made more compact and lighter than the conventional one, in which the entirety of the generator is covered with soundproof walls.
- the carburetor 44 and the air cleaner 45 are provided outside the duct member 31, these maintenance operations can be performed easily and quickly.
- Such vibration during operation of the engine 3 is absorbed by the elastic deformation of the elastic members 11, 11; 11, 11 interposed between the engine 3 and the frame 2, thereby preventing vibration transmission to the frame 2. Can be stopped or significantly reduced.
- the duct member 31 and the air cleaner 45 vibrate together with the engine 3 because they are fixed to the engine 3.
- the intake box 34 is fixed to the frame 2
- the first and second connection ports 39, 40 of the suction box 34 are connected to the duct member 31 and the air cleaner 45 via the first and second sealing members 41, 42, which are highly flexible. Therefore, the relative displacement accompanying the vibration between the duct member 31 and each of the air cleaner 45 and the intake box 34 is allowed by the radius of the first and second seal members 41 and 42, and the displacement from the intake box 34 to the duct member 31 is allowed.
- the cooling air can be efficiently circulated without leakage.
- a pair of left and right wheels 83, 83 are supported on the bottom side 2a of the frame 2 on the rear side, that is, on the exhaust box 68 side, and on the front side, that is, on the intake side.
- a pair of left and right grounding legs 84, 84 are fixed.
- a pair of left and right handle brackets 87, 87 are fastened to the upper brackets 12, 12 at the front end of the frame 2 together with the end plate 37 of the intake box 34 with bolts 35.
- These handle brackets 87, 87 protrude outside through a pair of left and right slits 76, 76 (see Fig. 8) provided in the box body 36 of the intake box 34.
- a moving handle 86 used for moving the generator 1 is attached.
- the moving handle 86 is welded to a pair of left and right handlebars 88, 88, a cross member 89 interconnecting the middle portions of the handlebars 88, 88, the handlebars 88, 88, and the base end thereof. It consists of an L-shaped support board 92 that is bolted to the connecting plate 90, and a rubber handle grip 93 fitted to the tip of each handle bar 88, 88.
- the left and right support boards 92, 92 Are connected to the left and right handle brackets 87, 87 via horizontal pivot bolts 94, 94, respectively.
- the moving handle 86 has a use position A where both handlebars 88, 88 are horizontal, and a handle grip 93. It can rotate between the storage position B vertically downward. Between the head of the pivot bolt 94 and the support board 92 A disc spring 95 for imparting appropriate rotational resistance to the moving handle 86 is interposed.
- the use position A of the moving handle 86 is defined by the stopper 96 formed on the connecting plate 90 and the support substrate 92 abutting on the distal end surface of the handle bracket 87, and the storage position B is defined by the handle grip 93. Is in contact with the front side of the bottom frame 2a of the frame 2 that projects forward from the intake box 34.
- the support board 92 is provided with a damper 97 that is activated immediately before the stopper 96 comes into contact with the handle bracket 87 when the moving handle 86 is rotated from the storage position B to the use position A.
- the damper 97 includes a support shaft 98 integrally projecting from the inner wall of the support substrate 92, a cushion member 99 made of rubber fitted on the outer periphery of the support shaft 98, and a cushion member 99 fitted on the outer periphery of the cushion member 99.
- the bush 100 abuts the bracket 87 immediately before the stopper 96 abuts on the distal end surface of the handle bracket 87, and the cushion member 99 is elastically deformed. It is designed to absorb the rotation impact of 86.
- the moving handle 86 and the handle bracket 87 are provided with a lock mechanism 101 for locking the moving handle 86 at the use position A.
- the locking mechanism 101 is supported by pivots 102, 102 fixed between the left and right connecting plates 90, 90 and the supporting substrates 92, 92, and is capable of rotating between a locked position L and an unlocked position U.
- the lever 103 is provided.
- Each operating lever 103 is provided with a lock pin 105, and an upper edge of the handle bracket 87 is provided with a lock groove 106.
- the operating lever 103 is locked at the locked position L and unlocked.
- the lock pin 105 is engaged with and disengaged from the lock groove 106 in accordance with the rotation to the lock position U.
- a lock spring 107 for urging the operation lever 103 in the direction of the lock position L is contracted between the operation lever 103 and the support substrate 92.
- the handle bracket 87 has an arcuate surface 87a that guides the engagement of the lock pin 105 into the lock groove 106 from the distal end surface to the upper edge.
- the left and right grips 93, 93 of the moving handle 86 are gripped and pulled up, and when the moving handle 86 is pushed and pulled with the grounding legs 84, 84 floating, the wheels 83, 83 can be rotated. Thus, the engine-driven generator 1 can be moved lightly.
- the hand may be released from the hand handle 86,
- the handle 86 Since the lock 86 is kept locked by the lock mechanism 101, the handle 86 can be prevented from rotating to the storage position B by its own weight, and the operability of the handle 86 is good.
- the cushion member 99 of the damper 97 abuts on the handle bracket 87 via the bush 100 immediately before the stopper 96 abuts on the handle bracket 87.
- the cushioning member 99 retains the elastic deformation of the cushion member 99 even after the handle 86 is locked to the use position A by the lock mechanism 101. Therefore, the repulsive force can prevent the lock mechanism 101 from rattling. Further, the cushion member 99 is prevented from being in direct contact with the handle bracket 87 by the bush 100 covering the outer periphery thereof, so that its durability can be enhanced.
- the operating lever 103 is rotated to the unlock position U against the urging force of the lock spring 107, and the lock pin 105 is disengaged from the lock groove 106.
- 86 is free to rotate around the pivot bolt 94. Therefore, the handle 86 can be turned to the storage position B in the vertical posture.
- the moving handle 86 When the moving handle 86 is folded to the storage position B as described above, the work by the engine-driven generator 1 can be easily performed without being obstructed by the moving handle 86. When storing the engine-driven generator 1 in a warehouse or the like, a relatively small storage space is sufficient.
- the handle 86 functions as a bumper so that the intake box 34 has a special Even without a card frame, the intake box 34 can be effectively protected by the moving handle 86 rotated to the storage position and the bottom frame 2a of the frame 2, and therefore the control unit 53, the inverter 55 and the battery 61
- the box body 36 of the large intake box 34 that accommodates the housing is made of synthetic resin, so that the weight of the box can be reduced.
- the air cleaner 45 is fixedly supported on the frame 2 similarly to the intake box 34, and the relative displacement between the carburetor 44 and the air cleaner 45 accompanying the vibration of the engine 3 is determined by the carburetor 44 and the air cleaner. It can be absorbed by the radius of an elastic communication tube 46 that communicates between the air cleaners 45. In this case, the force S can integrally connect the air inlet pipe 47a of the air cleaner 45 to the intake box 34.
- the outlet pipe of the exhaust muffler 74 can also be opened to the outside by penetrating the outer wall of the exhaust box 68 as shown by reference numeral 74a 'in FIG. In this case, only the cooling air is exhausted from the exhaust louver 73 of the exhaust box 68.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Soil Working Implements (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602004031018T DE602004031018D1 (de) | 2003-07-10 | 2004-07-08 | Motorbetriebene arbeitsmaschine |
AU2004255629A AU2004255629B2 (en) | 2003-07-10 | 2004-07-08 | Engine-driven working machine |
US10/562,216 US7597340B2 (en) | 2003-07-10 | 2004-07-08 | Engine-driven work machine |
CNB2004800197090A CN100450846C (zh) | 2003-07-10 | 2004-07-08 | 发动机驱动式工作机 |
CA002530164A CA2530164C (en) | 2003-07-10 | 2004-07-08 | Engine-driven work machine |
KR1020067000518A KR100652541B1 (ko) | 2003-07-10 | 2004-07-08 | 엔진 구동식 작업기 |
EP04747184A EP1645485B1 (en) | 2003-07-10 | 2004-07-08 | Engine-driven working machine |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-273024 | 2003-07-10 | ||
JP2003-273025 | 2003-07-10 | ||
JP2003273025A JP4167561B2 (ja) | 2003-07-10 | 2003-07-10 | エンジン駆動式作業機 |
JP2003273024A JP4226404B2 (ja) | 2003-07-10 | 2003-07-10 | 作業機のハンドル装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005005225A1 true WO2005005225A1 (ja) | 2005-01-20 |
Family
ID=34067378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/009715 WO2005005225A1 (ja) | 2003-07-10 | 2004-07-08 | エンジン駆動式作業機 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7597340B2 (ja) |
EP (1) | EP1645485B1 (ja) |
KR (1) | KR100652541B1 (ja) |
CN (1) | CN100450846C (ja) |
AU (1) | AU2004255629B2 (ja) |
CA (1) | CA2530164C (ja) |
DE (1) | DE602004031018D1 (ja) |
WO (1) | WO2005005225A1 (ja) |
Cited By (3)
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DE102007043922A1 (de) | 2007-09-14 | 2009-04-02 | Emsland-Stärke GmbH | Beschichtungsmittel für Faserstoffe, Verfahren zu dessen Herstellung und Verwendung desselben |
DE202007019610U1 (de) | 2007-09-14 | 2014-04-10 | Emsland - Stärke GmbH | Beschichtungsmittel für Faserstoffe |
CN104565691A (zh) * | 2015-01-28 | 2015-04-29 | 苏州圆能动力科技有限公司 | 一种基于滚轮和拉杆架构的发电机组 |
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US20080157615A1 (en) * | 2006-11-07 | 2008-07-03 | Potenco, Inc. | Human power generator with a sealed and unsealed chambers |
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JP5285552B2 (ja) * | 2009-09-04 | 2013-09-11 | 本田技研工業株式会社 | 作業機のハンドル構造体 |
JP5285551B2 (ja) * | 2009-09-04 | 2013-09-11 | 本田技研工業株式会社 | 作業機のハンドルロック構造体 |
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JP5514644B2 (ja) | 2010-06-22 | 2014-06-04 | 本田技研工業株式会社 | 作業機のハンドル装置 |
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KR101641325B1 (ko) | 2015-03-27 | 2016-07-20 | (주)세이프퀴슬 | 가스 중간밸브 개폐장치 |
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CN109882442B (zh) * | 2019-03-22 | 2020-07-07 | 三联泵业股份有限公司 | 一种具有减震降噪功能的涡轮增压器离心泵 |
CN110326412B (zh) * | 2019-08-14 | 2020-11-03 | 上海绿立方农业发展有限公司 | 一种穴盘苗移栽机及其使用方法和生产线 |
US11591977B2 (en) | 2020-06-03 | 2023-02-28 | Briggs & Stratton, Llc | Inverter generator |
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- 2004-07-08 US US10/562,216 patent/US7597340B2/en active Active
- 2004-07-08 KR KR1020067000518A patent/KR100652541B1/ko active IP Right Grant
- 2004-07-08 WO PCT/JP2004/009715 patent/WO2005005225A1/ja active Application Filing
- 2004-07-08 EP EP04747184A patent/EP1645485B1/en not_active Expired - Fee Related
- 2004-07-08 DE DE602004031018T patent/DE602004031018D1/de not_active Expired - Lifetime
- 2004-07-08 CN CNB2004800197090A patent/CN100450846C/zh not_active Expired - Fee Related
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007043922A1 (de) | 2007-09-14 | 2009-04-02 | Emsland-Stärke GmbH | Beschichtungsmittel für Faserstoffe, Verfahren zu dessen Herstellung und Verwendung desselben |
DE202007019610U1 (de) | 2007-09-14 | 2014-04-10 | Emsland - Stärke GmbH | Beschichtungsmittel für Faserstoffe |
CN104565691A (zh) * | 2015-01-28 | 2015-04-29 | 苏州圆能动力科技有限公司 | 一种基于滚轮和拉杆架构的发电机组 |
Also Published As
Publication number | Publication date |
---|---|
EP1645485A1 (en) | 2006-04-12 |
CA2530164A1 (en) | 2005-01-20 |
AU2004255629A1 (en) | 2005-01-20 |
AU2004255629B2 (en) | 2008-05-29 |
EP1645485A4 (en) | 2009-11-11 |
CN1819943A (zh) | 2006-08-16 |
DE602004031018D1 (de) | 2011-02-24 |
US20070176426A1 (en) | 2007-08-02 |
US7597340B2 (en) | 2009-10-06 |
CN100450846C (zh) | 2009-01-14 |
KR20060030511A (ko) | 2006-04-10 |
EP1645485B1 (en) | 2011-01-12 |
KR100652541B1 (ko) | 2006-12-04 |
CA2530164C (en) | 2008-10-14 |
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