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WO2003000032A1 - Machine agricole - Google Patents

Machine agricole Download PDF

Info

Publication number
WO2003000032A1
WO2003000032A1 PCT/JP2001/009127 JP0109127W WO03000032A1 WO 2003000032 A1 WO2003000032 A1 WO 2003000032A1 JP 0109127 W JP0109127 W JP 0109127W WO 03000032 A1 WO03000032 A1 WO 03000032A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame structure
support frame
frame
spare seedling
support
Prior art date
Application number
PCT/JP2001/009127
Other languages
English (en)
Japanese (ja)
Inventor
Tsugunori Yamamoto
Original Assignee
Yanmar Agricultural Equipment Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanmar Agricultural Equipment Co., Ltd. filed Critical Yanmar Agricultural Equipment Co., Ltd.
Priority to KR1020037002438A priority Critical patent/KR100760030B1/ko
Publication of WO2003000032A1 publication Critical patent/WO2003000032A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C11/00—Transplanting machines
    • A01C11/02—Transplanting machines for seedlings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C11/00—Transplanting machines
    • A01C11/006—Other parts or details or planting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D49/00—Tractors
    • B62D49/06—Tractors adapted for multi-purpose use
    • B62D49/0664—Light, simple, and economical tractors
    • B62D49/0671—Light, simple, and economical tractors the driver riding on the tractor

Definitions

  • the present invention relates to an agricultural work machine.
  • a conventional agricultural work machine has a work machine that can be lifted and lowered at the rear of a self-propelled traveling machine.
  • the traveling machine is equipped with a traveling unit below the machine frame,
  • the prime mover was located in the upper front part of the frame, and the operation section was located behind the prime mover.
  • the fuselage frame hangs a front frame structure that extends in the left and right width direction on the front of a pair of left and right center frame structures that extend in the front-rear direction.
  • the rear frame was formed in a substantially rectangular frame shape by laying a rear-portion-like frame-like structure in a rear view at the rear of the structure.
  • the airframe has a spare seedling support frame that extends in the left-right direction in the middle of the front of the center frame. Spare seedling stands were mounted on the left and right ends of the construct.
  • the conventional agricultural work machine has a structure in which the spare seedling support is supported only by the spare seedling support support frame structure of the body frame.
  • the airframe has a step support frame structure that extends in the left-right width direction between the middle part and the rear part of the center frame structure. Driving operation by body He supported the steps that form the floor of the work area.
  • a rear deck can be placed immediately after these steps, and a rear deck support frame structure for supporting the rear deck is attached to the center frame structure of the fuselage frame, and the rear deck support frame is mounted.
  • the rear deck was attached to the structure.
  • the conventional agricultural work machine had a structure in which a ryadek support frame component was attached to an airframe and a ryadeki was attached to the riadeck support frame.
  • the spare seedling mounting support structure is supported only by the spare seedling mounting support frame structure of the body frame, the spare seedling mounting support frame structure is heavy.
  • the strength of the spare seedling mounting support frame structure was ensured by forming the spare seedling mounting support frame structure thick so that the seedling mounting platform could be sufficiently supported.
  • the conventional agricultural working machine described above has a structure in which the rear deck cannot be supported by the body frame unless a rear deck support frame structure, which is a separate member from the step support frame structure, is attached to the body frame. there were.
  • a spare seedling mounting table supporting frame structure extending in the left-right width direction is installed at the front of a pair of left and right center frame structures extending in the front-rear direction constituting the body frame.
  • the spare seedling support is supported by the left and right sides of the spare seedling support frame, and the front frame is horizontally laid at the front of a pair of left and right center-to-frame components.
  • the left and right sides of the front frame structure were connected to the left and right sides of the spare seedling mounting support frame structure.
  • the battery is placed inside the area surrounded by the front side of the Sen-ichi frame structure, the side of the front frame structure, and the side of the spare seedling support frame structure in plan view. did.
  • a hydraulic pump was installed inside the area surrounded by the front side of the center frame structure, the side of the front frame structure and the side of the spare seedling support frame structure in plan view. .
  • the engine is disposed inside a region surrounded by the front part of the pair of left and right sensor frame members, the middle part of the front frame member, and the middle part of the spare seedling support frame member in plan view.
  • one of two regions surrounded by the front side of the pair of left and right sensor frame members, the side portion of the front frame member, and the side portion of the spare seedling support frame member in plan view The battery was placed inside the area and the hydraulic pump was placed inside the other area.
  • a step for forming a floor of a driving operation unit is provided above the body frame, and a rear deck is provided behind the step, and the steps are supported by the body frame.
  • a step support frame structure was provided to support the rear deck.
  • the step support frame structure extends the base end portion in the left-right width direction, extends the front end portion in the front-rear direction, and supports the step with the front end portion. Decided to support the Lya deck.
  • a bracket for mounting a rear deck is provided at a base end of the step supporting frame structure, and the bracket is configured so that a fertilizer can be mounted in place of the rear deck.
  • a planting machine as a working machine is connected to the rear of the traveling machine body configured to be able to move up and down so as to be able to move up and down.
  • a spare seedling support frame structure that extends in the left-right width direction is erected, The left and right sides of this are designed to support the spare seedling table.
  • the front frame structure is laid horizontally on the front of a pair of left and right center frame structures, and the left and right sides of the front frame structure are connected to the left and right sides of the spare seedling mounting support frame structure. It is.
  • the load of the spare seedling rest is not only received on the left and right sides of the spare seedling stand support frame structure but also on the left and right sides of the front frame structure.
  • the front frame member and the front frame member cooperate to support the heavy seedling stand.
  • the area surrounded by the front side of the center frame structure, the side of the front frame structure, and the side of the spare seedling support frame structure in plan view.
  • the front side of the sensor frame structure, the side of the front frame structure, and the side of the spare seedling support frame structure around the battery.
  • stones and mud are flipped up from the field or road surface while the aircraft is running, these stones and mud are not supported by the center frame structure, the front frame structure, and the spare seedling mounting table. It only collides with the frame structure and does not directly collide with the battery. This allows the front side of the center frame structure, the side of the front frame structure, and the spare seedling mounting support frame structure.
  • the side of the body functions as a protective member for the battery, and these protective members can prevent the battery from being damaged, and can extend the life of the agricultural work machine.
  • Battery It is not necessary to separately provide a protective member for protecting the even cowpea to this, it is possible to reduce the weight and cost reduction of the agricultural machine.
  • an II pressure pump is provided in an area surrounded by the front side of the center frame assembly, the side of the front frame assembly, and the side of the spare seedling support frame assembly. If it is installed, the front side of the center frame, the side of the front frame, and the side of the frame for supporting the nursery stand are located around the hydraulic pump. Even if stones, mud, etc. are flipped up from the field or the road surface while the aircraft is running, these stones, mud, etc. will not be removed from the center frame, the front frame, and the spare seedling support frame. And does not directly hit the hydraulic pump. This allows the front side of the center frame structure, the side of the front frame structure and the side of the spare seedling support frame structure to be in contact with each other.
  • Acts as protection for hydraulic pumps Becomes bets, it is possible to prevent the breakage of the hydraulic pump Ri by these protective members, it is possible to extend the life of the agricultural machine, deer In addition, it is not necessary to separately provide a protection member for protecting the hydraulic pump, and thus, the weight and cost of the agricultural working machine can be reduced.
  • the engine is disposed inside a region surrounded by the front part of the pair of left and right sensor frame members, the middle part of the front frame member, and the middle part of the spare seedling support frame member in plan view. Of the two front and rear sides of the pair of left and right frame members, the side of the front frame member, and the side of the spare seedling support frame member in plan view.
  • the battery is disposed inside one area and the hydraulic pump is disposed inside the other area, not only can the above-mentioned battery and the hydraulic pump be protected, but also the heavy engine
  • the battery and the hydraulic pump, which are also heavy objects, are arranged separately on the left and right, and the weight balance on the left and right can be improved, improving the running stability of the aircraft. It is possible.
  • a planting machine as a working machine is connected to the rear of the traveling machine which is configured to be able to move up and down so as to be able to ascend and descend.
  • the rear deck is installed behind the steps.
  • a step supporting frame structure for supporting the steps is provided on the body frame, and the step supporting frame structure is configured to support the rear deck.
  • the step support frame structure provided on the body frame alone can support not only the steps but also the rear deck disposed behind the same step, thereby providing a dedicated member for supporting the rear deck.
  • the base end of the step support frame structure is extended in the left-right width direction, and the distal end is extended in the front-rear direction, and the step is supported by the distal end, while the rear deck is supported by the base end.
  • the step support frame structure can be manufactured easily and inexpensively, and the cost of the agricultural work machine can be further reduced.
  • a bracket for mounting a rear deck is provided at the base end of the step supporting frame structure, and when the fertilizer can be mounted on the same bracket instead of the rear deck, the fertilizer is mounted. It is not necessary to separately prepare members for performing the above operations, and this can also reduce the number of parts and thereby reduce the cost and the weight of the aircraft.
  • the left view which shows a rice transplanter.
  • FIG. 2 is a plan view showing a body frame.
  • FIG. 1 A first figure.
  • the left sectional side view which shows a motor part.
  • FIG. 2 is a front view showing a steering shaft support frame structure.
  • FIG. The rear view which shows a step support frame structure.
  • FIG. 4 is a plan view showing steps.
  • the left view which shows a fertilizer.
  • FIG. 4 is a side view showing a steering mechanism.
  • FIG. 4 is a side cross-sectional view showing a torque generator and a steering case.
  • FIG. 1 A first figure.
  • FIG. 4 is a bottom view showing the steering case.
  • the side view which shows a key switch panel.
  • FIG. 1 A first figure.
  • the rice transplanter 1 is described as an example of the agricultural working machine according to the present invention.
  • the agricultural working machine according to the present invention is not limited to the rice transplanter 1, but may be a tractor, a combine, or a vegetable. It can also be applied to work machines used for various agricultural work such as transplanters.
  • the rice transplanter 1 has a planting machine 3 connected via a lifting mechanism 4 to a rear part of a traveling body 2 configured to be self-propelled so as to be able to move up and down.
  • the traveling body 2 has a traveling section 6 below the body frame 5 and a prime mover section 7 at the front of the body frame 5, and has a prime mover section ⁇ .
  • the driving operation unit 8 is arranged at the rear position.
  • the fuselage frame 5 is extended in the front-rear direction, and is bent substantially upward from the center to the rear. Between the front ends of the pair of left and right center frame members 9 and 10, the central portion is extended in the left and right width direction, and the left and right portions are bent and the left and right portions are extended rearward.
  • a spare stepping frame supporting frame structure 12 is erected, and a cylindrical step supporting frame structure extending in the left-right width direction between the middle portions of the sun frame structures 9 and 10.
  • the body frame 5 is provided with a rectangular flat plate-shaped engine support 17 for mounting the engine 16 between the center of the front frame structure 11 and the center of the spare seedling support frame structure 12.
  • the engine support 17 is provided with a rectangular flat steering support 19 for supporting a steering mechanism 18 at the rear end thereof. ing.
  • the body frame 5 is provided with a bracket 22 at the base end of the auxiliary seedling support column 21 that constitutes the auxiliary seedling platform 20 at the left and right ends of the auxiliary seedling platform support frame assembly 12.
  • the left and right ends of the front frame structure 11 are connected to the left and right ends of the spare seedling mounting support frame structure 12, respectively.
  • a rectangular plate-shaped battery support 24 for mounting the battery 23 is mounted between the right side of the structure 11, and furthermore, the auxiliary frame support 9, 10 and the spare seedling support are supported.
  • a pair of left and right step support columns 51, 52 are erected upward near the intersection with the frame structure 12.
  • the front frame structure 11 is laid between the front ends of the pair of left and right center frame structures 9 and 10, and the left and right sides of the front frame structure 11 are spared. Because it is connected to the left and right sides of the seedling supporting frame structure 12, the load of the spare seedling mounting 20 is not only received by the left and right ends of the spare seedling supporting frame structure 12, but also the front frame structure 11 are also received at the left and right end portions, and the spare seedling mounting support frame structure 12 and the front frame structure 11 cooperate to support the spare seedling mounting table 20 which is heavy.
  • the body frame 5 has a pair of left and right steering shaft support frame structures 25 and 26 attached to the front ends of the front frame structure 11 at the upper center thereof.
  • a cylindrical steering boss 28 for rotatably supporting a steering shaft 27 is attached to a rear end of the shaft-shaft supporting frame members 25 and 26 via a substantially U-shaped bracket 29.
  • the body frame 5 includes a pair of left and right cylindrical step supporting frame members 30, 31 on the left and right sides of the gate-shaped lya frame member 15.
  • the base end is mounted, and the rear deck support brackets 32, 33 are mounted between the corners of these frame structures 15 and the base ends of the step support frame structures 30, 31.
  • Each of the step support frame members 30 and 31 has a shape in which the base end extends in the left-right width direction, and is bent in the middle, and the distal end extends in the front-rear direction. .
  • the traveling section 6 has a front portion of the mission case 34 attached to a rear portion of the steering support 19 provided on the body frame 5.
  • a pair of left and right front axle cases 35 and 36 are connected to the front of the mission case 34 in an interlocked manner, and front wheels 37 are connected to each front axle case 35 and 36 in an interlocked manner.
  • the traveling section 6 is connected to a rear axle case 38 extending in the left and right width direction in an interlocking manner at the rear of the mission case 34, and is connected to a rear wheel 39 at the left and right ends of the rear axle case 38 in an interlocking manner.
  • the rear axle case 38 has the upper left and right sides mounted on the base end of the rear frame structure 15 of the body frame 5.
  • the mission case 34 is attached to the steering support 19 of the body frame 5
  • the rear axle case 38 connected to the rear end of the mission case 34 is attached to the rear frame structure of the body frame 5.
  • the rear parts of the frame 9 and 10 bent toward, the rear frame structure 15, the mission case 34 and the rear axle case 38 constitute a substantially triangular truss structure. This enhances the rigidity of the fuselage and improves the running stability of the fuselage.
  • the left and right center frame members 9 and 10 are passed through recesses formed by the mission case 34 and the front axle casings 35 and 36 in a plan view, so that the center frame member 9 is formed.
  • the positions of, 10 are lower than before to lower the center of gravity of the fuselage to improve running stability, and to lower the vehicle height to improve getting on and off.
  • the prime mover unit 7 mounts the engine 16 on the engine support 17 of the body frame 5 and places the fuel above the engine 16.
  • a muffler 59 is connected to the left side of the engine 16, and an exhaust pipe 60 projects forward and downward from the front end of the muffler 59.
  • a mouth 61 is formed, and the engine 16, fuel tank 40 and muffler 59 are covered with a bonnet 62.
  • the drive shafts 41 and 42 project from the rear left portion and the front right portion of the engine 16, respectively, and project from the rear left portion of the engine 16.
  • a driving power transmission mechanism 43 for transmitting power to the traveling section 6 is interlocked and connected to the driven drive shaft 41, while a drive shaft 42 protruding to the front right side of the engine 16 is connected to a power generation mechanism 44.
  • the prime mover unit 7 has a belt-type stepless speed-change transmission in which a drive shaft 41 protrudes from the rear left portion of the engine 16 and a part of the traveling power transmission mechanism 43 is formed at the tip of the drive shaft 41.
  • a hydraulic pump 46 for hydraulically driving the planting machine 3 etc. is mounted coaxially on the left side of the transmission 45, and the drive shaft 41 of the engine 16 is also linked to the hydraulic pump 46.
  • the traveling power transmission mechanism 43 has an output pulley 47 of a transmission 45 attached to a drive shaft 41 of the engine 16, and an input pulley 49 attached to an input shaft 48 protruding from the front left side of the mission case 34.
  • a transmission belt 50 is suspended between the output side bulge 47 and the input side bulge 49.
  • the prime mover unit 7 has a drive shaft 42 protruding from the front right portion of the engine 16, and a power generating mechanism 44 operatively connected to a tip end of the drive shaft 42.
  • the power generating mechanism 44 drives the engine 16.
  • the output side bulge 53 is attached to the tip of the shaft 42, and between the generator support column 54 and the right step support column 52 erected on the front side of the center frame structure 10 on the right side of the body frame 5.
  • a generator 55 is mounted on the input shaft 56 of the electric motor 55, and an input burry 57 is mounted on the input shaft 56.
  • a transmission belt 58 is suspended between the output pulley 53 and the input pulley 57.
  • the drive shafts 41 and 42 are respectively protruded to the left and right sides of the engine 16, and the traveling power transmission mechanism 43 is disposed on the left side of the engine 16 while the right side of the engine 16 is Power generation mechanism 44
  • the driving power transmission mechanism 43 is linked to the drive shaft 41 projecting to the left of the engine 16, and the power generation mechanism 44 is linked to the drive shaft 42 projecting to the right of the engine 16.
  • the length of the fuselage on the front side of the operation unit 8 should be as short as possible, compared to a conventional agricultural work machine in which the power generation mechanism 44 is provided further ahead of the engine 16 provided in front of the unit 8. Can be.
  • the front view from the driving operation unit 8 is not obstructed by the bonnet 62 covering the engine 16 and the power generation mechanism 44, and safety during traveling can be improved.
  • the length of the fuselage on the front side of the fuselage is reduced, the minimum turning radius can be reduced, and the turning performance can be improved.
  • the length is also shortened, and the size of the aircraft can be reduced.
  • the exhaust port 61 of the engine 16 is provided on the opposite side of the engine 16 across the engine 16, the high-temperature exhaust discharged from the exhaust port 61 of the engine 16 is opposite to the generator 44.
  • the exhaust is not directly blown to the power generation mechanism 44, thereby preventing the exhaust of the engine 16 from damaging the appearance of the power generation mechanism 44.
  • the step support column 52 since the generator 55 that forms a part of the power generation mechanism 44 is supported by the step support column 52 formed on the body frame 5, the step support column 52 also functions as a column for supporting the generator 55. Therefore, it is not necessary to separately provide a support member for supporting the generator 55, thereby reducing the number of parts, and reducing the parts management cost and the manufacturing cost. And reduce the weight of the aircraft. it can.
  • the front frame component 11 is laid between the front ends of the pair of left and right center frame components 9 and 10, and the left and right ends of the front frame component 11 are connected to each other.
  • FIG. 2 by connecting to the left and right sides of the spare seedling support frame supporting frame structure 12, the front side of the pair of left and right center frame structures 9 and 10 and the front frame structure 1 can be seen in plan view. A closed-loop area surrounded by the middle of 1 and the frame of the spare seedling support frame structure 12.
  • S1 is also formed, and also in the plan view, the sensu-frame structure
  • the front left and right sides of the center frame components 9 and 10, the left and right sides of the front frame component 11 and the left and right sides of the spare seedling support frame component 12 are located on the front left and right sides of the components 9 and 10, respectively.
  • a pair of left and right enclosed closed loop regions S2 and S3 are formed .
  • the engine 16 and the transmission 45 are arranged inside the central area S 1, and the hydraulic pump 46 is arranged inside the left area S 2, and the right area Battery 23 is installed inside S3.
  • the battery 23 and the hydraulic pump 46 which are also heavy, are distributed around the heavy engine 16 and the left and right to improve the weight balance between the left and right, and improve the running stability of the aircraft. Have improved.
  • the engine 16 and the transmission 45 are disposed inside the central area S 1 in plan view, the engine 16 and the transmission 45 are surrounded by the front sides of the transmission frame members 9 and 10 around the transmission 16.
  • the middle part of the front frame structure 1 1 and the middle part of the spare seedling mounting support frame structure 12 are present, and the front parts of the front and rear frame structures 9 and 10 and the front frame structure are present.
  • the middle part of 1 and the middle part of the spare seedling mounting support frame structure 12 will function as a protection member to protect the engine 16 and the transmission 45 from obstacles such as ridges.
  • These protective members can prevent damage to the engine 16 and the transmission 45, extend the life of the agricultural work machine, and additionally provide a separate protective member to protect the engine 16 and the transmission 45. This eliminates the necessity, so that the weight and cost of the agricultural work equipment can be reduced.
  • the hydraulic pump 46 is disposed inside the area S2 on the left side in a plan view, the front sides of the front and rear frame components 9 and 10 and the front frame 11 Part and the side of the spare seedling supporting frame structure 12, the front side of the center frame components 9 and 10, the side of the front frame forming 11, and the spare seedling supporting frame.
  • the side of the component 12 functions as a protection member for protecting the hydraulic pump 46 from obstacles such as ridges, and the protection member can prevent the hydraulic pump 46 from being damaged.
  • the service life can be prolonged, and it is not necessary to separately provide a protective member for protecting the hydraulic pump 46. This also makes it possible to reduce the weight and cost of the agricultural work machine.
  • the battery 23 is disposed inside the area S3 on the right side in a plan view, the front sides of the sensor frames 9 and 10 and the sides of the front frame member 11 around the battery 23.
  • the side of the spare seedling support frame structure 12, the front sides of the center frame components 9 and 10, the side of the front frame structure 11, and the spare seedling support frame configuration The side of the body 12 functions as a protection member for protecting the battery 23 from obstacles such as ridges, and the protection member can prevent the battery 23 from being damaged, thereby extending the life of the agricultural work machine.
  • the front step 63 is formed in a substantially U-shape in a plan view by forming a cutout portion 64 in the front central portion with a part of the front end portion being opened, and is formed into a bifurcated shape. It is mounted on top of step support columns 51 and 52 formed on the fuselage frame 5 with its leading end extending toward the left and right sides of the engine 16.
  • a front cover 65 is provided so as to be openable and closable in a notch 64 formed in a forked front portion, and the front cover 65 has a substantially cylindrical shape at a lower end portion.
  • an engine oil inspection and refueling port 67 of the engine 16 is located inside the front cover 65.
  • the notch 64 is formed in the front central portion of the front step 63, and the front step 63 is formed in a substantially U-shape in plan view.
  • the front step 63 and the components located at the front of the fuselage such as the engine 16 become hard to dry, and the front step 63 can be easily attached and detached. The workability of the maintenance work that is performed by removing it is improved.
  • a front cover 65 that functions as an opening / closing lid in a notch 64 formed in the front center of the front step 63, the front force bar can be removed without removing the front step 63.
  • the maintenance work of the lower part of the engine 16 and the traveling power transmission mechanism 43 linked to the engine 16 can be performed, improving the workability of the maintenance work.
  • the engine oil inspection and oil supply port 67 of the engine 16 can be performed simply by opening and closing the front force bar 65 without removing the front step 63. Oil and oil refueling operations can now be performed, improving workability in engine oil inspection and refueling operations.
  • the notch 64 formed at the front central portion of the front step 63 can be provided with an attachment such as a winch or a pump instead of the open / close lid.
  • a bonnet 62 and a front column force bar 68 are mounted on the front of the front step 63 in this order from the front.
  • the bonnet 62 covers the front and left and right sides of the engine 16 and the fuel tank 40.
  • a front column cover 68 covers the rear of the engine 16 and the fuel tank 40.
  • the bonnet 62 and the front column cover 68 integrally form a front part of the fuselage.
  • the bonnet 62 functions as a front bonnet structure, while the front column cover 68 serves as a rear bonnet. It is designed to function as a structure.
  • the bonnet 62 has recesses 69, 69 formed on the upper side of the substantially central portion in a front view by making the left and right widths of the upper portion smaller than the left and right widths of the lower portion.
  • the recess 69 is formed as a smooth curved surface that is continuous with the left and right side surfaces of the bonnet 62.
  • the recess 69 is formed in the upper part of the bonnet 62 when viewed from the front, so that when the worker moves on the upper surface of the front step 63 provided on the lower side of the bonnet 62, The distance between the upper part of the bonnet 62 and the operator can be increased, so that when the fertilizer applicator 135 is mounted on the rear part of the traveling vehicle 2 (see FIG. 10), the worker can use the fertilizer to replenish the fertilizer. Hold bag and move along front step 63 along bonnet 62 Since the fertilizer bag can be passed through the recess formed in the upper part of the bonnet 62, the operator carrying the fertilizer bag can easily move the upper surface of the front step 63 in a comfortable posture.
  • the concave portion 69 formed in the bonnet 62 is formed with a curved surface, even if the fertilizer bag comes into contact with the bonnet 62 when the fertilizer bag is transported, the fertilizer bag is not damaged, and the fertilizer bag is not damaged. Fertilizer is scattered due to damage and adheres to the airframe, so that mackerel can be generated, or the trouble of cleaning the scattered fertilizer can be prevented.
  • the bonnet 62 has a locking portion 70 at the lower front end, and a locking portion 71 at the upper rear end.
  • the bonnet 62 forms a tongue piece 70a as a locking portion 70 at a lower portion of the front end, and on the other hand, between the middle portions of the steering shaft support frame members 25 and 26.
  • a bracket ⁇ extended in the left-right width direction is horizontally mounted, and a locking piece 73 is provided at the lower center of the bracket 72, and a locking hole 74 having a horizontally long hole shape is formed in the locking piece 73.
  • an opening 75 is formed at the upper rear side, a fuel supply port 76 for the fuel tank 40 is located in the opening 75, and a fuel supply lid 77 for refueling is attached to the opening 75 so as to be openable and closable.
  • a tongue piece 71 a as a lock part 71 at the upper end edge of the opening 75, and a knob screw insertion hole 78 for inserting a knob screw 81 as a hook member is formed in the tongue piece 71 a.
  • a bracket 79 projects forward from the upper end of the steering post 28, and a female screw 80 is attached to the front end of the bracket 79.
  • the bonnet 62 is fixed to the fuselage by screwing the knob screw 81 inserted into the female screw 80 to the female screw 80.
  • the knob screw 81 is It is located inside the oil cover 77, and by opening the fuel cover 77 and turning the knob screw 81 inside the fuel cover 77, the bonnet 62 can be opened and closed. I'm going to do it.
  • the locking portion 70 for locking the bonnet 62 to the bonnet 62 and the locking portion 71 for locking the bonnet 62 are provided respectively, and the locking portion is provided.
  • 71 is covered with a fuel filler lid 77 as an opening / closing lid, and the opening and closing operations of the lock part 71 can be performed inside the opening / closing lid (fuel filler lid 77).
  • the lock portion 71 is not exposed from the outside, so that the operator's body does not come into contact with the lock portion 71, and it is complicated that the lip is released and the bonnet 62 falls off. It is possible to improve the safety of the design, because the lock part 71 is not exposed from the outside. it can.
  • the lubricating lid 77 for refueling which is provided on the bonnet 62 so as to be openable and closable, is used as the lid, it is not necessary to provide a separate lid to cover the hook part 71. It is possible to reduce manufacturing costs and parts management costs and to reduce the weight of the aircraft.
  • the fuel filler cover 77 is used as the opening / closing cover for covering the lock portion 71.
  • the front cover 65 provided at the lower end of the bonnet 62 so as to be openable and closable. Can be used as an open / close lid.
  • the same reference numerals are used for members having substantially the same functions as those in the configuration in FIG. 4 described above.
  • the bonnet 62 has a tongue piece 71 a as a lock portion 71 at the lower front end, and a knob screw 81 for inserting a knob screw 81 as a lock member into the tongue piece 71 a.
  • a bracket 72 extending in the left-right width direction is bridged between the middle portions of the ring shaft support frame members 25 and 26, and a female screw 80 is formed in the center of the bracket 72.
  • the bonnet 62 is screwed to the body frame 5 by screwing the knob screw 81 inserted into the knob screw hole 78 of the tongue piece 71a.
  • the knob screw 81 is located inside the front cover 65 and is covered by the front cover 65.
  • the bonnet 62 forms a tongue piece 70a at the rear end of the rear end as a locking portion 70, while forming a locking recess 82 at the upper front end of the front column cover 68, and The tongue piece 70a is locked.
  • the bonnet 62 is attached and detached in front of the fuselage.
  • the workability of maintenance work for the engine 16 and the like can be improved.
  • the driving operation unit 8 has a seat 83 mounted on the center upper portion of the seat support frame structure 14 of the body frame 5.
  • a steering shaft 27 is rotatably disposed in front of the seat 83 at a predetermined interval, and the steering shaft 27 is rotatably supported by the steering post 28 and the steering shaft 28 is supported.
  • the front column cover 68 is covered with an operating lever (main transmission lever 84a and seedling lever 84b) and left and right brake pedals (not shown) on the right side of the front column cover 68.
  • a clutch pedal 85 is provided on the left side of the front column cover 68.
  • reference numeral 104 denotes a steering wheel attached to the upper end of the steering shaft 27.
  • a horizontally long rectangular box-shaped key switch panel 87 attached to the tearing boss 28 via a bracket 86 is provided.
  • the key switch panel 87 has various warning lamps 88a to 88d on its upper surface (for example, a warning lamp 88a for prompting the seedling consolidation work, a warning lamp 88b for prompting the supply of fertilizer, a warning lamp 88c for notifying that the fertilizer is clogged, the left and right brakes. Warning lamps 88d, etc. that indicate that the pedals are disconnected, and switches 89a to 89c (for example, warning buzzer stop switch 89a, engine start / stop switch 89b, automatic planting depth adjustment)
  • a recess 90 is formed in the lower right side of the rear side (the side facing the seat 83), and a key switch 91 is provided in the recess 90.
  • the key 92 is inserted into the key switch 91.
  • the depth of the recess 90 is such that the rear end of the key 92 attached to the key switch 91 does not protrude from the rear end of the key switch panel 87 in plan view. Is formed.
  • the warning lamps 88a to 88d are provided on the upper surface of the key switch panel 87, so that the operator can easily visually recognize the warning lamps 88a to 88d during the driving operation. It is possible to improve the safety of driving operation.
  • the front surface of the key switch panel 87 is made a horizontal surface, and the warning lamps 88a to 88d are arranged on such a horizontal surface so that workers can easily see the warning lamps 88a to 88d.
  • the rear part of the upper surface is formed to have a front-to-back and back-to-back slope in accordance with the operator's eyes, and switches 89a to 89c are arranged on such a slope so that the operator can operate switches 89a to 89c.
  • the safety of driving operation has been improved by making it easier.
  • a key switch 91 in a concave portion 90 formed on the side surface of the key switch panel 87, when the key 92 is inserted into the key switch 91, the rear end of the key switch 92 becomes a key switch panel. Protruding from the side of 87 The amount of protrusion can be reduced as much as possible, which reduces the risk of the operator's body accidentally touching the rear end of the key 92, preventing the key 92 from malfunctioning and ensuring safety. Performance can be improved.
  • the concave portion 90 is formed on the side surface facing the seat 83, the operator can easily operate the key 92 while sitting on the seat 83, thereby improving operability and improving the front of the worker.
  • the space on the side can be enlarged, and driving can be performed comfortably.
  • the concave portion 90 is formed so that the tip of the key 92 attached to the key switch 91 does not protrude from the key switch panel 87 in plan view, even if the key 92 is inserted into the key switch 91, the This eliminates the risk that the body of the key 92 may accidentally come into contact with the rear end of the key 92, thereby preventing malfunction of the key 92 and improving safety.
  • the driving operation unit 8 has an upper end of a torque generator 93 for power steering interlockedly connected to a base end of the steering shaft 27, and the torque generator 93 has the same configuration.
  • a steering case 95 accommodating a speed reduction mechanism 94 (see FIG. 13) is interlockingly connected to the lower end of the steering case 95.
  • the steering case 95 is not formed inside the mission case 34 as in the related art, but is formed as a conventional case. It is formed as a separate body separate from the case 34.
  • the torque generator 93 and the steering case 95 are disposed between the engine 16 and the mission case 34.
  • the torque generator 93 is disposed in the recess 96 formed in the lower rear part of the engine 16 with the upper surface inclined upward and rearward
  • a steering case 95 is disposed in a recess 97 formed in the lower front part of the mission case 34 with the upper surface inclined upward and rearward.
  • the steering case 95 is changed in accordance with the specification change. It is only necessary to change the arrangement position appropriately, and it is not necessary to change the shape of the mission case 34 itself, thereby making it possible to change the specifications of the agricultural work machine quickly and easily.
  • the space formed between the engine 16 and the mission case 34 is effectively used to compact the aircraft. It is possible to achieve the goal.
  • recesses 96 and 97 are formed at the rear of the engine 16 and at the front of the transmission case 34, respectively, and the steering case 95 and the torque generator 93 are arranged between the recesses 96 and 97 so that the steering case is formed. 95 ⁇ A sufficient space is provided for installing the torque generator 93.
  • recesses 96 and 97 are formed in the lower rear part of the engine 16 and the lower front part of the mission case 34, respectively, and the steering case 95 and the torque generator 93 are inclined between the two concave parts 96 and 97 with a low front and rear height.
  • the engine 16, the steering case 95, the torque generator 93, and the mission case 34 can be arranged in close contact and concentrated, thereby further improving the compactness of the aircraft. Have to be able to.
  • FIGS. 4 and 12 a rear end of an engine support 17 provided to support the engine 16 on the body frame 5 is provided.
  • a steering support 19 for supporting the steering case 95 is extended, and a torque generator 93 is mounted on an upper portion of the steering support 19 while a steering case 95 is mounted on a lower portion of the steering support 19.
  • the torque generator 93 and the steering case 95 are directly fastened via the steering support 19 of the fuselage frame 5 with a total of four bolts 98, two on each side.
  • the rear end of the steering support 19 is connected to the front end of the mission case 34 via a bracket 99, while the rear end of the steering case 95 is reinforced at the lower rear end of the steering case 34. They are connected via a support 100.
  • the front end of the engine support 17 (front frame structure 11) and the rear end of the steering support 19 (bracket 99 and A bolt 101 which is a fastening portion with the transmission case 34 and a rear end portion of the reinforcing support 100 (a bolt 102 which is a fastening portion between the reinforcing support 100 and the mission case 34) are formed by a virtual triangle 103 in a side view. It is configured to be located at each vertex of.
  • the engine 16 and the mission case 34 can be firmly connected to each other via the steering case 95, and the strength of the engine support 17 itself can be sufficiently secured.
  • the rigidity can be improved.
  • a steering support 19 constituting the body frame 5 is interposed between the torque generator 93 and the steering case 95, and the torque generator 93 and the steering gear are provided on the steering support 19.
  • Mounting case 95 is installed.
  • the attachment structure can be simplified, and the components required for the attachment can be simplified. Reduce points As a result, manufacturing costs and parts management costs can be reduced, and the weight of the aircraft can be reduced.
  • the torque generator 93 is mounted on the steering support 19 of the body frame 5, the load applied to the steering wheel 104 is received by the steering support 19 of the body frame 5, and the steering case The load applied to the 95 can be reduced, and the steering case 95 can be made lighter than the conventional case, which can also reduce the weight of the aircraft.
  • the torque generator 93 has a case body 106 covering the lower end of the torque generator body 105 and between the torque generator body 105 and the steering case 95.
  • the case body 106 is configured to seal a power steering oil circulation passage formed inside the torque generator body 105.
  • 107 is an oil inlet
  • 108 is an oil outlet.
  • the case body 106 has a drain opening 109 for discharging oil from the torque generator body 105 formed at the rear end.
  • 110 is a drain pipe.
  • the torque generator 93 is connected to a base end of an output shaft 112 rotatably provided on a case body 106 to a distal end of an intermediate shaft 111 protruding from a lower end of the torque generator body 105,
  • the output gear 1 13 is attached to the tip of the output shaft 1 12.
  • 114 is a bearing and 115 is a packing.
  • the steering case 95 The upper opening of the tearing case body 116 is covered with a steering case cover 117, and a reduction mechanism 94 is accommodated and disposed inside.
  • the torque generator 93 has a sealed structure, and since the oil circulating inside the torque generator 93 does not flow into the steering case 95, the steering case 95 has a sealed structure. It is not necessary.
  • the reduction mechanism 94 has a large-diameter transmission gear 119 mounted on an upper portion of an input shaft 118 rotatably supported by a steering case main body 116 and a steering case lid 117, and a small-diameter gear mounted on a lower portion of the input shaft 118.
  • the transmission gear 120 is mounted, and on the other hand, a fan-shaped slewing gear 122 is mounted on the upper part of the output shaft 121 rotatably supported at the rear of the steering case body 116, and these small-diameter transmission gear 120 and slewing gear 122 are combined. Let me.
  • the output shaft 121 projects downward from the rear lower portion of the steering case body 116, and a plate-shaped pitman arm 123 is attached to the lower end of the output shaft 121.
  • a pair of left and right drag links 124, 125 are linked to the front end of the toman arm 123, and the drag links 124, 125 are linked to knuckle arms (not shown) provided on the left and right front axle cases 35, 36. Connected.
  • an arc-shaped groove 126 is formed in the lower surface of the steering case body 116, while a pin 127 is projected upward on the upper surface of the pitman arm 123.
  • the pivotal movement is performed along the groove 126, and the rotation of the pitman arm 123 is prevented by contacting the pins 127 with both ends of the groove 126.
  • the groove 126 formed in the steering case 95 as a cutting angle stopper of the steering wheel 104, the precision of the cutting angle is improved while the number of components constituting the steering wheel is reduced.
  • the torque generator 93 is hermetically sealed by the case body 106 provided between the torque generator 93 and the steering case 95, so that the steering case 95 does not need to have a closed structure, and the torque No packing or fasteners are required to make the generator 93 and the steering case 95 a sealed structure, and the number of parts can be reduced, thereby reducing manufacturing costs and parts management costs. And the weight of the aircraft can be reduced.
  • the torque generator 93 and the case body 106 have a sealed structure, even if the torque generator 93 and the case body 106 are removed from the steering case 95, oil leaks from the torque generator 93 and the case body 106. There is no danger, thereby improving the maintenance workability.
  • the case body 106 has a drain opening 109 for discharging the oil of the torque generator body 105, the oil inside the torque generator 93 can be drained from the drain opening 109, and the torque The maintenance work of Eneray 93 can be performed easily.
  • the torque generator 93 since the output shaft 112 of the torque generator 93 is inserted through the case body 106 and inserted into the steering case 95, the torque generator 93 is linked to the steering case 95, so that the torque generator 93 is connected.
  • the 93 output shafts 1 and 12 can also be used as the input shafts for the steering case 95, reducing the number of parts, thereby reducing manufacturing costs and parts management costs, and reducing the weight of the machine. Can be achieved.
  • the driving operation unit 8 has a step 130 disposed around the seat 83, and the step 130 and the front step 63 form a floor. I have.
  • step 130 the front end is connected to the rear end of the front step 63, and side steps 131 and 132 for getting on and off are formed on the right and left sides.
  • the dividing position of the step 130 and the front step 63 (the position of the front end of the step 130 and the rear end of the front step 63) is located on the rear side of the body compared to the conventional case, and the steering wheel 104 It is located near the position directly below the rear end, so that maintenance work on the transmission 45 can be performed simply by removing the front step 63, and the number of steps can be reduced by the amount that the split position has moved to the rear of the machine. 130 can be made smaller and lighter, and the work of attaching and detaching step 130 can be facilitated.
  • a recess 133 is formed at the foot of the operator by forming a recess directly below the seat 83 in a side view, thereby making the operator's foot wider and comfortable. Can be operated.
  • step 130 the left and right ends are extended to the left and right sides of the rear wheel 39 so as to cover the upper front side of an auxiliary wheel (not shown) attached to the outside of the rear wheel 39 in a wetland or the like.
  • an auxiliary wheel (not shown) attached to the outside of the rear wheel 39 in a wetland or the like. This prevents the operator from being exposed to mud when operating the seedling connecting lever 84b on the side of the machine.
  • the step 130 itself can be widened to improve the workability when transferring seedlings or supplying fertilizer, and the object on the step 130 falls and wraps around the auxiliary wheel. Can be prevented.
  • the step 130 is supported by the step support frame structure 13 of the body frame 5 at substantially the center, and the step support frame of the body frame 5 is provided at the left and right rear ends. It is supported by components 30 and 31.
  • the step support frame structures 30 and 31 that support the left and right rear ends of the step 130 support not only the step 130 but also a rear deck 134 that covers the rear end of the fuselage disposed behind the step 130.
  • each of the step supporting frame components 30, 31 has a shape in which the base end extends in the left-right width direction, and is bent in the middle, and the distal end extends forward and rearward.
  • the base end extending in the left-right width direction supports the rear deck 134, while the front end extending in the front-rear direction supports the step 130.
  • the rear deck 134 is fixed by the rear deck supporting brackets 32 and 33 provided between the corners of the rear frame constituting body 15 and the base ends of the step supporting frame bodies 30 and 31.
  • a fertilizer applicator 135 can be attached to the rear deck support brackets 32 and 33 in place of the rear deck 134, as shown in FIG.
  • the body frame 5 is provided with the step support frame members 30 and 31 for supporting the step 130, and the step support frame members 30 and 31 also support the rear deck 134.
  • 134 can also be supported, which eliminates the need to separately provide a dedicated member for supporting the lya deck 134, and reduces the number of parts that make up the agricultural work machine. The management cost can be reduced, and the weight of the aircraft can be reduced.
  • the base ends of the step support frame members 30, 31 are extended in the left-right width direction, and the distal ends are extended in the front-rear direction. Since the Ryadeck 134 is supported by the part, the step support frame members 30, 31 can be manufactured easily and inexpensively, and the cost of the agricultural work machine can be further reduced.
  • rear deck support brackets 32 and 33 for mounting the rear deck 134. Since the 135 can be mounted, there is no need to provide a separate member for mounting the fertilizer applicator 135, and this can also reduce the number of parts and reduce the cost and weight of the aircraft. it can.
  • the present invention is embodied in the form described above, and has the following effects.
  • the spare seedlings extending in the left and right width directions are provided at the front portions of a pair of left and right center frame components extending in the front-rear direction constituting the body frame.
  • a stand support frame structure is erected, and the spare seedling support is supported on the left and right sides of the spare seedling support structure, and a front frame structure is provided at the front of a pair of left and right center frame structures.
  • the left and right sides of the front frame structure are connected to the left and right sides of the spare seedling support frame structure, so that the load of the spare seedling support is supported by the spare seedling support.
  • the front side portion of the center frame structure, the side portion of the front side frame structure, and the side portion of the spare seedling mounting support frame structure are surrounded in plan view.
  • the front side of the center frame structure, the side of the front frame structure, and the side of the spare seedling support frame structure are arranged around the battery because the battery is disposed inside the area.
  • the front side of the center frame structure, the side of the front frame structure, and the side of the spare seedling support frame structure protect the battery from obstacles such as ridges. These protection members can prevent the battery from being damaged and extend the life of the agricultural work machine.
  • the front side of the center frame structure and the front side frame around the hydraulic pump The side of the structure and the side of the spare seedling support frame structure are present, and the front side of the center frame structure, the side of the front frame structure and the spare seedling support frame are provided.
  • the sides of the frame structure function as protective members for protecting the hydraulic pump from obstacles such as ridges, and these protective members can prevent damage to the hydraulic pump, and extend the life of the agricultural work machine. Can be achieved.
  • the front side portion of the pair of left and right sensor frame members, the middle portion of the front frame member, and the middle portion of the spare seedling mounting support frame member are surrounded.
  • the engine is arranged inside the region, and the front side of the pair of left and right sensor frame members, the side portion of the front frame member, and the side portion of the spare seedling support frame member member in plan view.
  • the battery is placed inside one of the two areas surrounded by the circle, while the hydraulic pump is placed inside the other area, so that the battery and the hydraulic pump described above can be protected as much as possible. Rather, the battery and the hydraulic pump, which are the same heavy objects, are placed separately on the left and right around the engine, which is a heavy object, so that the left and right weight balance can be improved.
  • the running stability of the aircraft can be improved.
  • a step of forming a floor portion of the driving operation unit is provided above the body frame, and a rear deck is provided behind the step, and furthermore, the body frame is provided.
  • a step support frame structure for supporting the steps is provided on the vehicle, and the step support frame structure is also configured to support the rear deck.Therefore, only the step support frame structure provided on the fuselage frame is used. Not only the step but also the same step It can also support the rear deck arranged behind.
  • the base end of the step support frame structure is extended in the left-right width direction, and the tip is extended in the front-rear direction. Since the rear end is supported on the rear deck while supporting, the step supporting frame structure can be manufactured easily and inexpensively, and the cost of the agricultural work machine can be further reduced. .
  • a bracket for mounting a rear deck is provided at a base end of the step support frame structure, and a fertilizer applicator can be mounted on the same bracket instead of the rear deck. Therefore, it is not necessary to prepare a separate member for mounting the fertilizer, and this can also reduce the number of parts and reduce the cost and weight of the machine.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transplanting Machines (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Cette invention concerne une machine agricole sur laquelle, par souci de réduction de poids, une structure de maintien pour réservoir de semoir arrière disposée dans le sens de la largeur est montée en avant d'une paire de longerons droit et gauche formant le châssis de la machine. Cette structure est maintenue sur les côtés droit et gauche du châssis. Une structure avant est montée transversalement sur les longerons droit et gauche et est reliée sur ses côtés droit et gauche aux côtés droit et gauche de la structure de maintien pour réservoir de semoir arrière.
PCT/JP2001/009127 2001-06-20 2001-10-17 Machine agricole WO2003000032A1 (fr)

Priority Applications (1)

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KR1020037002438A KR100760030B1 (ko) 2001-06-20 2001-10-17 농작업기

Applications Claiming Priority (2)

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JP2001186398A JP4754725B2 (ja) 2001-06-20 2001-06-20 農作業機
JP2001-186398 2001-06-20

Publications (1)

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WO2003000032A1 true WO2003000032A1 (fr) 2003-01-03

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PCT/JP2001/009127 WO2003000032A1 (fr) 2001-06-20 2001-10-17 Machine agricole

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JP (1) JP4754725B2 (fr)
KR (1) KR100760030B1 (fr)
CN (1) CN1275504C (fr)
TW (1) TWI246882B (fr)
WO (1) WO2003000032A1 (fr)

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US10722473B2 (en) 2018-11-19 2020-07-28 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder

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TWI594912B (zh) * 2013-02-28 2017-08-11 井關農機股份有限公司 作業車輛
CN104663085B (zh) * 2013-11-29 2018-10-12 井关农机株式会社 苗移植机
JP6616274B2 (ja) * 2016-12-07 2019-12-04 ヤンマー株式会社 作業車
JP6861561B2 (ja) * 2017-03-31 2021-04-21 ヤンマーパワーテクノロジー株式会社 水田作業機

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JP2000092927A (ja) * 1998-09-25 2000-04-04 Yanmar Agricult Equip Co Ltd 乗用田植機

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JP2000092927A (ja) * 1998-09-25 2000-04-04 Yanmar Agricult Equip Co Ltd 乗用田植機

Cited By (13)

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Publication number Priority date Publication date Assignee Title
US10507186B2 (en) 2014-10-31 2019-12-17 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder
US10111839B2 (en) 2014-10-31 2018-10-30 Purdue Pharma Methods and compositions particularly for treatment of attention deficit disorder
US10292938B2 (en) 2014-10-31 2019-05-21 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder
US10292939B2 (en) 2014-10-31 2019-05-21 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder
US10449159B2 (en) 2014-10-31 2019-10-22 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder
US10500162B2 (en) 2014-10-31 2019-12-10 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder
US9974752B2 (en) 2014-10-31 2018-05-22 Purdue Pharma Methods and compositions particularly for treatment of attention deficit disorder
US10512613B2 (en) 2014-10-31 2019-12-24 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder
US10512612B2 (en) 2014-10-31 2019-12-24 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder
US10568841B2 (en) 2014-10-31 2020-02-25 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder
US10688060B2 (en) 2014-10-31 2020-06-23 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder
US11896722B2 (en) 2014-10-31 2024-02-13 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder
US10722473B2 (en) 2018-11-19 2020-07-28 Purdue Pharma L.P. Methods and compositions particularly for treatment of attention deficit disorder

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KR100760030B1 (ko) 2007-10-04
CN1447644A (zh) 2003-10-08
KR20030028811A (ko) 2003-04-10
JP2003000019A (ja) 2003-01-07
TWI246882B (en) 2006-01-11
JP4754725B2 (ja) 2011-08-24
CN1275504C (zh) 2006-09-20

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