Title of Invention

" RICE-PLANTING MACHINE"

Abstract A cross-feed screw shaft (87) for feeding a seedling-placement platform (16) in a transverse direction and a transmission shaft (96), in a drive case (61) for planting, for transmitting drive force to the screw shaft (87) are formed as separate bodies. The cross-feed screw shaft (87) and the transmission shaft (96) are connected and interlocked outside the drive case (61) for planting. In a rice-planting machine with the cross-feed screw shaft for feeding the seedling-placement platform in a transverse direction, the burden of dismantling the drive case (61) for planting each time when the cross-feed screw shaft (87) breaks down is removed, and only the screw shat (87) can be easily replaced. As a result, workability for maintenance and checking is improved. FIGURE 14
Full Text DESCRIPTION Rice planting Machine
Technical Field
The present invention relates to a riccplanting machine, which is provided with, for example, a seedling-placement platform and a seedling-planting claw in a planting unit so as to successively plant seedlings.
Background Art
A cross-feed screw shaft which feeds a seedling-placement platform in a transverse direction is formed integrally with a transmission shaft in a central planting drive case (for example, Japanese Unexamined Patent Publication No.H5- 199808).
In the prior art, whenever a damaged crossfeed screw shaft needs to be changed, disassembling of the planting drive case is required. This process is troublesome and difficult. It may also damage transmission components and the like in the planting drive case.
Disclosure of Invention
The present invention includes a cross-feed screw shaft which feeds a seedling-placement platform in a transverse direction, and a transmission shaft in a planting drive case which transmits drive force to the screw shaft. The screw shaft and the transmission shaft are formed separately and connected in cooperation outside the planting drive case. Therefore, the
SUMMARY OF THE INVENTION:
The invention relates to a rice-planting machine. The object of the instant invention is to provide a rice-planting machine suitable in case a repair is required. In the rice planting machine of the instant invention if an extraordinary load is applied on the cross-feed screw shaft, the shearing member shears or breaks off by the extraordinary load, thereby effectively preventing the cross-feed screw shaft, and the transmission shaft and another transmission components in the planting drive case from being damaged by the extraordinary load. Accordingly, it is possible to perform a repair by only replacing the sharing member with the new one.
The invention particularly relates to a rice-planting machine comprising a cross-feed screw shaft which feeds a seedling-placement platform in a transverse direction, and a transmission shaft which is provided in a planting drive case and which transmits drive force to the cross-feed screw shaft, the rice-planting machine being characterized in that the cross-feed screw shaft and the transmission shaft are separate from each other and are connected to each other through a shearing member that is positioned outside of the planting drive case, the shearing member being sheared with a predetermined torque. The shearing member of the rice planting machine
may have a shape of flat square pole. It is a preferred embodiment to have the planting drive case of the rice planting machine to be connected with a rice-planting machine, wherein said planting drive case is connected to a vertical case through a lateral pipe case, a rotary case connected to a rear end of the vertical case, a planting drive shaft inserted into the lateral pipe case so as to transmit drive power from the planting drive case to the vertical case, a planting claw drive shaft inserted into the vertical case in a state of being connected to the planting drive shaft via a pair of front bevel gears, and a rotary shaft supported by the rotary case so as to be along a width direction of the rice-planting machine in a state of being connected to the planting claw drive shaft via a pair of rear bevel gears, wherein the planting claw drive shaft has strength less than that of the planting drive shaft, and the vertical case includes a front gear case for accommodating the pair of front bevel gears, and a rear gear case for accommodating the planting claw drive shaft and the pair of rear bevel gears, the front gear case and the rear gear case being detachably connected to each other.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a side view of the entire rice-planting machine. Fig. 2 is a top view of the entire rice-planting machine. Fig. 3 is a front view of the entire rice-planting machine. Fig. 4 is a side view of the vehicle body. Fig. 5 is a top view of the vehicle body. Fig. 6 is a side illustrative drawing of the
present invention is free from the trouble of disassembling the planting drive case each time the cross-feed screw shaft is damaged. This facilitates replacement of the screw shaft since it can bo independently replaced, and can improve the workability as in service and maintenance.
Moreover, a shearing member which shears with a predetermined torque value is provided at the connection portion of the cross-feed screw shaft and the transmission shaft. Accordingly, the cross-feed screw shaft, the transmission component in the drive case and the like arc prevented from of being disadvantageously damaged by the shearing of the shearing member if an extraordinary load is applied to the crossfecd screw shaft, allowing to maintain the stable horizontal feeding performance of the seedling-placement platform.
In addition, a vertical feeding shaft which vertically feeds seedlings on the seedling-placement platform is formed separately from a vertical feeding transmission shaft in the planting drive case. Therefore, the planting drive case need not bo disassembled each time the vertical feeding shaft is damaged and needs to be removed, and the vertical feeding shaft can be readily removed and replaced, improving the efficiency of service and maintenance.
The invention particularly discloses a rice-planting machine comprising a cross-feed screw shaft which feeds a seedling-placement platform in a transverse direction, and a transmission shaft which is provided in a planting drive case and which transmits drive force to the cross-feed screw shaft, the rice-planting machine being characterized in that the cross-feed screw shaft and the transmission shaft are separate from each other and are cormected to each other through a shearing member that is positioned outside of the planting drive case, the shearing member being sheared with a predetermined torque.
More particularly, the invention relates to rice-planting machine, wherein the shearing member has a shape of flat square pole.
The invention also discloses a rice-planting machine, further comprising a vertical case connected to the planting drive case through a lateral pipe case, a rotary case connected to a rear end of the vertical case, a planting drive shaft inserted into the lateral pipe case so as to transmit drive power from the planting drive case to the vertical case, a planting claw drive shaft inserted into the vertical case in a state of being connected to the planting drive shaft via a pair of front bevel gears, and a rotary shaft supported by the rotary case so as to be along a width direction of the rice-planting machine in a state of being connected to the planting claw drive shaft via a pair of rear bevel gears, wherein the planting claw drive shaft has strength less than that of the planting drive shaft, and the vertical case includes a front gear case for accommodating the pair of front bevel gears, and a rear gear case for accommodating the planting claw drive shaft and the pair of rear bevel gears, the front gear case and the rear gear case being detachably connected to each other.
Brief Description of the Drawings
Fig. 1 is a side view of the entire rice-planting machine. Fig. 2 is a top view of the entire rice-planting machine. Fig. 3 is a front view of the entire rice-planting machine. Fig. 4 is a side view of the veliicle body. Fig. 5 :s a top view of the vehicle body. Fig. 6 is a side illustrative drawing of the

planting unit. Fig. 7 is a perspective illustrative drawing of the planting unit. Fig. 8 is a front illustrative drawing of the planting unit. Fig. 9 is a side illustrative drawing of a hitch bracket unit. Fig. 10 is a plane illustrative drawing of a float unit. Fig. 11 is a front illustrative drawing of the float unit. Fig. 12 is an illustrative drawing of a seedling-placement platform supporting member. Fig. 13 is a side illustrative drawing of a planting case unit. Fig. 14 is an illustrative drawing of the cross-feed screw shaft unit. Fig. 15 is a cross sectional illustrative drawing of a drive case unit. Fig. 16 is a cross sectional illustrative drawing of a vertical case unit. Fig. 17 is an illustrative drawing of a drive case gear unit. Fig. 18 is an illustrative drawing of a horizontal feeding transmission mechanism unit. Fig. 19 is a perspective illustrative drawing of a shearing unit. Fig. 20 is a deformation illustrative drawing of a vertical feeding drive. Fig. 21 is a deformation illustrative drawing of the vertical feeding drive. Fig. 22 is a gear connection illustrative drawing of a vertical feeding shaft.
BEST MODE FOR CARRYING OUT THE INVENTION
Examples of the present invention will be described below in detail with reference to the drawings. Fig. 1 is a side view of the entire vehicle. Fig. 2 is a top view of the same. Fig. 3 is a front view of the same. Fig. 4 is a side view of the vehicle body. Fig. 5 is a top view of the same. In these Figs, reference numeral 1 is a vehicle which allows an operator to get onto. The vehicle 1 is so configured that an air-cooled engine 2 is mounted on a vehicle body frame 3, front wheels 6 for paddy field are supported to both sides of a transmission case 4 via front axle cases 5, and the rear wheels 8 for
paddy field are supported on a rear axle case 7 which is positioned at the rear of the transmission case 4. Further, in the vehicle 1, spare seedling-placement platforms 10 are provided at both sides of a bonnet 9 covering the engine 2 and other components. The transmission case 4 and other components are covered by a body cover 11 onto which an operator gets. Further, in the vehicle 1, a driver's scat 13 is attached onto the upper rear of the body cover 11 via a seat frame 12, and a steering wheel 14 is provided on the rear of the bonnet 9 and the front of the driver's seat 13.
In the Figs., reference numeral 15 is a planting unit which includes a seedling-placement platform 16 for eight-row planting, a plurality of seedling planting claws 17 and the like. The synthetic resin seedling-placement platform 16 which is inclined forwardly with the front higher than the rear is supported on a planting case 20 in a slidable manner along a transverse direction via a lower rail 18 and a upper rail 19. The planting unit 15 further includes rotary cases 21 which are supported by the planting cases 20 so as to rotate at a constant speed in one direction. The rotary cases 21 are provide with a pair of claw cases 22, 22 which are installed at the positions symmetrical about the rotation axis of the cases 21, and seedling planting claws 17, 17 which are attached at the tips of the claw cases 22, 22.
In the vehicle 1, a hitch bracket 23 located at the front of the planting case 20 is connected to the rear of the vehicle body via a lifting linkage 26 including a top link 24 and a lower link 25. A hydraulic lifting cylinder 27 which raises and lowers the planting unit 15 via the linkage 26 is connected to the lower link 25. The vehicle 1 is so configured that the planting claws 17 draw one planting unit of seedlings from the
seedling-placement platform which is slid from side to side with the roar and front wheels 6, 8 being driven for traveling so as to successively plant seedlings.
In the Figs., reference numeral 28 is a main shift lever, reference numeral 29 is a planting operation lever which performs turning on and off and marking operation of the planting unit 15 of the lifting and planting clutch, reference numeral 30 is a shift pedal, reference numeral 31 is an accelerator lever, and reference numeral 32 is a unit clutch lever.
Further in the Figs., reference 33 is a central float for leveling two central rows, reference numeral 34 are right and left side floats for leveling two side rows, reference numeral 35 are auxiliary right and left floats for leveling outermost side rows, reference numeral 36 is an eight-lateral-row fertilizer distributor which discharges the fertilizer in a fertilizer hopper 37 to a lateral row furrower (not shown) of the floats 33, 34, 35 by using tho wind force of a blower 38.
As shown in Figs. 4 to 5, the vehicle body frame 3 is divided into three parts; a pair of front portion frames 39, a pair of middle portion frames 40 and a pair of rear portion frames 41. The engine 2 is provided on the right and left front portion frames 39. The front axle case 5 is provided on the right and left middle portion frames 40. Tho rear axle case 7 and a fuel tank 42 which supplies fuel to the engine 2 and the like are provided on the right and left rear portion frames 41. A front frame 43 and a base frame 44 are connected between the right and left front portion frames 39 at a front end portion and a middle portion of the front portion frames 39 to form a square frame when viewed on a plane. The engine 2 is mounted on a
bracket 45 of the front portion frames 39 and the base frame 44 via vibration"abisorbing rubbers 46.
A power steering case 47 is provided to the left front of the transmission case 4, and a hydrostatic transmission (HST) 48 is provided on the right side of the transmission case 4. A transmission input pump shaft. 49 of the hydrostatic transmission 48 is protruded toward the front of the vehicle body. The pump shaft 49 is connected to the transmission shaft 50 in the longitudinal direction at the right lower side of the engine 2. The transmission shaft 50 is connected to an output shaft 51 of the engine 2 via a transmission belt 52 to transmit the output of the engine 2 to the hydrostatic transmission 48.
The transmission case 4 and the rear axle case 7 are integrally connected by a tubular connecting frame 53 along the longitudinal centerline of the vehicle body. A traveling output shaft 54 and a PTO output shaft 55 are protruded rearward from the transmission case 4. The traveling output shaft 54 is connected to a rear input shaft 56 protruded forward from the front of the rear axle case 7 via a rear transmission shaft 57 to transmit power from the traveling output shaft 54 to the right and left rear wheels 8. Moreover, the PTO output shaft 55 is connected to a countershaft 59 provided at a shaft bearing 58 of an upper part of the rear axle case 7 via a universal joint shaft 60. The countershaft 59 is connected to the input shaft of the planting ease 20 via a universal joint shaft to transmit power from the PTO output shaft 55 to the planting unit 15.
As shown in Figs. 6 to 13, the planting case 20 includes a central planting drive case 61, vertical cases 62 which mount a pair of rotary cases
21 for two rows at both the right and left sides of the rear end of the vertical cases 21, a lateral pipe case 63 which connects between the drive case 61 and the front ends of the right and left vertical cases 62 and also connects between the front ends of the adjacent vertical cases 62. Approximately U-shaped right and left side bumpers 64 are foldably provided at the outer right and left ends of the lateral pipe cases 63, Right; and left side frames 65 are arranged to stand on the lateral pipe cases 63 at the inside of the side bumpers 64, the upper ends of the right and left side frames 65 are cormected by a rolling frame 66. Four upper seedling receiving plate shoes 67 mounted on the right and left side frames 65 and the rolling frame 66 are fitted with the upper rail 19 to support an upper part of the scediing-placement platform 16 in a slidabel manner along the transverse direction.
A pivot member 69 at the center of the planting case 20 is rotatably connected to the hitch bracket 23 via a rolling pivot shaft 68. The pivot member 69 is connected to right and left brackets 70 at the center of the rolling frame 66 by right and left arms 71. The right and left brackets 70 are connected to the proximal ends of the right and left side frames 65 by oblique reinforcement members 72. A hydraulic rolling cylinder 73 is interposed between the hitch bracket 23 and left bracket 70. The planting unit 15 is swung around the pivot shaft 68 by controlling the reciprocating movement of the cylinder 73 to keep the planting unit 15 horizontally.
As shown in Figs. 5, 6 and 14 to 17, the planting drive case 61 is so configured that a planting input shaft 75 is connected to the countershaft 59 via a universal joint; shaft 74, a planting transmission shaft 77 is connected
to the input shaft 75 via a pair of bevel gears 76, a planting drive shaft 78 inserted into the pipe cases 63 is connected to a planting transmission shaft 77 to via the transmission chain 79, a planting claw drive shaft 80 inserted into the vertical case 62 is connected to the planting drive shaft 78 via a pair of bevel gears 81 and a safety clutch 82, and a rotation shaft 83 which is provided at the rear end of the vertical case 62 and which rotatably supports the rotary case 21 is connected to the planting drive shaft SO via a pair of bevel gears 84 and a planting claw unit clutch 85, so as to drive the seedling planting claws 17.
As shown in Figs. 15 to 17, a solid shaft is used for a planting drive shaft 78a between the planting drive case 61 and the vertical case 62, A square pipe is used for a planting drive shaft 78b between the adjacent vertical cases 62. A round pipe is used for a planting claw drive shaft 80 in the vertical case 62. Thus, the rotation strength K3 of the planting claw drive shaft 80 becomes less than the rotation strength Kl, K2 of the planting drive shafts 78a, 78b (K3 It should be noted that the lateral pipe case 63 and the drive shaft 78b interposed between the vertical cases 62 are also provided removably with respect to the vertical case 62 and a bevel gear shaft 78c inside the
vertical case 62, respectively.
As shown in Figs. 14 and 18, a cross-feed screw shaft 87 which feeds the seedling-placement platform 16 in the transverse direction and a vertical feeding shaft 88 which feeds seedlings in the vertical direction are protruded to the right of the planting drive case 61. The cross-feed screw shaft 87 and the vortical feeding shaft 88 are rotatably supported by a shaft bearing plate 89 fixedly mounted on the right side frames 65. A slider 90 which is connected to the cross-feed screw shaft 87 with a screw engagement is connected to the seedling-placement platform 16. The seedling-placement platform 16 is moved along the transverse direction in a reciprocating manner by the rotation of the screw shaft 87 in one direction. The vertical feeding shaft 88 has right and left vertical feeding cams 91. When the seedling-placement platform 16 moves to the right and left ends, the vertical feeding cams 91 are brought into contact with a driven cam 93 which rotates a vertical feeding belt 92 to transfer one planting unit of soedlings to the lower end of the seedling-placomont platform 16.
Moreover, the planting drive case 61 is provided with a transmission mechanism 94 which changes the transverse or horizontal feeding speed of the seedling-placement platform 16 in four levels. Specifically, a transmission shaft 96 is rotatably provided in the drive case 61 so as to be connected with the left end of the cross-feed screw shaft 87 via a shearing member 95. A speed change shaft 97 is interposed between the transmission shaft 96 and a planting transmission shaft 77. The speed change shaft 97 is connected to the planting transmission shaft 77 via a pair of gears 98. The transmission shaft 96 is connected to the speed change
shaft 97 via four pairs of transmission gears 99, 100, 101, 102. The transmission shaft 96 is connected to the vertical feeding shaft 88 via a chain 103. This constitution enables fourspeed transverse feeding of the seedling-placement platform 16 and vertical feeding of seedlings on the seedling-placement platform. In addition, the vertical feeding shaft 88 has a transmission shaft 88a which is separate from a main part of the vertical feeding shaft 88 and is supported in the drive case 61. Ajoint 88b at the left end of the vertical feeding shaft 88 is removably connected to the square shaft 88c of the transmission shaft 88a. This constitution facilitates the replacement of the vertical feeding shaft 88 and the like.
The speed change shaft 97 is provided with a key groove 104. A shift key 107 is embedded in the key groove 104 with its tip alternatively engaged in the key grooves 106 of the gears 99 to 102 on the speed change shaft 97 by the force of a sheet spring 105. A speed change shift shaft 110 is connected to the shift key 107 via a shift ring 108 and a shifter 109. The shift shaft 110 is moved from side to side by operating a switch lever (not shown) provided outside the planting transmission case 61 to perform the speed change of the transmission mechanism 94.
As shown in Fig. 19, the shearing member 95 is formed in the shape of a flat square. One end side of the shearing member 95 is fitted into an engaging hole 111 bored at the right end of the transmission shaft 96. The other end side of the shearing member 95 is engaged with a notched groove 112 formed at the left end of the cross-feed screw shaft 87. When a load higher than a predetermined torque value acts on the cross-feed screw shaft 87, the shearing member 95 shears outside the drive case 61, preventing the
screw shaft 87 and the transmission shaft 96 from being damaged. It slould be noted that in the above example a square-sliaped member is used as the shearing member 95, but the transmission shaft 96 may be connected to the screw shaft 87 via a cotter pin and the cotter pin may be used as a shear pin to form the shearing member 95.
As can be seen from the foregoing, the cross-feed screw .shaft 8" which feeds the seedling-placement platform 16 in the transverse direction and the transmission shaft 96 in the planting drive case 61 which transmits drive force to the screw shaft 87 are formed separately, and the cross-feed screw shaft 87 and the transmission shaft 96 are connected in cooperation outside the planting drive case 61. Accordingly, when the cross-feed screw shaft 87 i.s damaged, the screw shaft 87 can be independently replaced without the trouble of disassembhng the planting drive case 61. This improves the workability of service, maintenance, etc.
Moreover, the shearing member 95, which shears with a predetermined torque value, is provided at the connection part between the cross-feed screw shaft 87 and the transmission shaft 96. Therefore, if an extraordinary load is applied to the cross-feed screw shaft 87, the cross-feed screw shaft 87, the transmission components and other components in drive case 61 can be prevented from being disadvantageously damaged by shearing of the shearing member 95, thereby maintaining the stable transverse of horizontal feeding performance of the seedling-placement platform 16.
In addition, the vertical feeding shaft 88 which vertically feeds seedlings on the seedling-placement platform 16 is formed separately from
the vertical feeding transmission shaft 88a in the planting drive case 61. This prevents the trouble of disassembling the planting drive case 61 each time the vertical feeding shaft 88 is damaged and needs to be removed, and allows the vertical feeding shaft 88 to be readily removed and replaced. The efficiency of service and maintenance works can be thus improved.
Figs. 20 and 21 show the constitutions in which the cross-feed .screw shaft 87 and the vertical feeding shaft 88 are connected in cooperation at the outer right side of the shaft bearing plate 89 via the sprockets 113, 114 and the chain 115. The sprockets 113, 114 are fixed onto the shafts 87, 88 via the shear pins 116, 117 to protect the vertical feeding shaft 88 and other components.
Fig. 22 .shows the crossfeed screw shaft 87 and the vertical feeding shaft 88 arc connected in cooperation at the outer right side of the shaft bearing plate 89 via the gears 118, 119, 120 and shear pins 116, 117.





We Claim:
1. A rice-planting machine comprising a cross-feed screw shaft (87) which feeds a seedling-placement platform (16) in a transverse direction, and a transmission shaft (96) which is provided in a planting drive case (61) and which transmits drive force to the cross-feed screw shaft (87), the rice-planting machine being characterized in that the cross-feed screw shaft (87) and the transmission shaft (96) are separate from each other and are connected to each other through a shearing member (95) that is positioned outside of the planting drive case (61), the shearing member (95) capable of being sheared with a predetermined torque.
2. A rice-planting machine as claimed in claim 1, wherein the shearing member (95) has
a shape of flat square pole
3 A rice-planting machine as claimed in either claims 1 or 2, wherein said planting
drive case (61) is connected to a vertical case (62) through a lateral pipe case (63),
a rotary case (21) connected to a rear end of the vertical case (62),
a planting drive shaft (78) inserted into the lateral pipe case (63) so as to transmit drive power from the planting drive case (61) to the vertical case (62),
a planting claw drive shaft (80) inserted into the vertical case (62) in a state of being connected to the planting drive shaft (78) via a pair of front bevel gears (81), and
a rotary shaft (83) supported by the rotary case (21) so as to be along a width direction of the rice-planting machine in a state of being connected to the planting claw drive shaft (80) via a pair of rear bevel gears (84), wherein
the planting claw drive shaft (80) has strength less than that of the planting drive shaft (78),
and
the vertical case (62) includes a front gear case (62a) for accommodating the pair of front bevel gears (81), and a rear gear case (62b) for accommodating the planting claw drive shaft (80) and the pair of rear bevel gears (84), the front gear case (62a) and the rear gear case (62b) being detachably connected to each other.

Documents:

2482-delnp-2005-abstract.pdf

2482-delnp-2005-claims.pdf

2482-delnp-2005-complete specification(as filed).pdf

2482-delnp-2005-complete specification(granted).pdf

2482-DELNP-2005-Correspondence-Others-(09-03-2010).pdf

2482-delnp-2005-Correspondence-Others-(22-11-2011).pdf

2482-delnp-2005-correspondence-others.pdf

2482-delnp-2005-correspondence-po.pdf

2482-delnp-2005-description (complete).pdf

2482-delnp-2005-drawings.pdf

2482-delnp-2005-Form-1-(22-11-2011).pdf

2482-delnp-2005-form-1.pdf

2482-delnp-2005-form-18.pdf

2482-delnp-2005-Form-2-(22-11-2011).pdf

2482-delnp-2005-form-2.pdf

2482-delnp-2005-form-3.pdf

2482-delnp-2005-form-5.pdf

2482-delnp-2005-GPA-(22-11-2011).pdf

2482-delnp-2005-gpa.pdf

2482-delnp-2005-pct-210.pdf

2482-delnp-2005-pct-304.pdf

2482-delnp-2005-pct-338.pdf

2482-delnp-2005-pct-409.pdf

2482-delnp-2005-pettiion-138.pdf

abstract.jpg


Patent Number 244868
Indian Patent Application Number 2482/DELNP/2005
PG Journal Number 52/2010
Publication Date 24-Dec-2010
Grant Date 23-Dec-2010
Date of Filing 09-Jun-2005
Name of Patentee YANMAR AGRICULTURAL EQUIPMENT CO.,
Applicant Address 1-32, CHAYAMACHI, KITA-KU, OSAKA-SHI, OSAKA 530-0013, JAPAN
Inventors:
# Inventor's Name Inventor's Address
1 DOI KUNIO C/O YANMAR AGRICULTURAL EQUIPMENT CO., LTD. 1-32,CHAYAMACHI,KITA-KU, OSAKA-SHI,OSAKA 530-0013,JAPAN
2 YAMASHITA TSUNATAKE C/O YANMAR AGRICULTURAL EQUIPMENT CO., LTD. 1-32,CHAYAMACHI,KITA-KU, OSAKA-SHI,OSAKA 530-0013,JAPAN
3 MATSUOKA HIDEKI C/O YANMAR AGRICULTURAL EQUIPMENT CO., LTD. 1-32,CHAYAMACHI,KITA-KU, OSAKA-SHI,OSAKA 530-0013,JAPAN
PCT International Classification Number A01C 11/02
PCT International Application Number PCT/JP2003/016291
PCT International Filing date 2003-12-19
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 2002-367584 2002-12-19 Japan