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21. 发明专利

JPH08113046A TRAVEL SPEED CHANGE STRUCTURE OF WORK VEHICLE 失效
公开(公告)号：JPH08113046A
公开(公告)日：1996-05-07
申请号：JP25313094
申请日：1994-10-19
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： B60K20/00 , B60K17/10
摘要： PURPOSE: To always obtain a travel speed of a machine body corresponding to an operation position regardless of an increase in a load by changing the relationship between an operation position of a speed change operating tool and a speed changer of a static hydraulic continuously variable transmission according to a load applied to the static hydraulic continuously variable transmission. CONSTITUTION: A riding rice-planting machine is provided with a static hydraulic continuously variable transmission 5 composed of a hydraulic pump driven by an engine and a hydraulic motor to output motive power whose speed is changed. In this static hydraulic continuously variable transmission 5, when a speed change lever 10 is operated over a neutral stopping position N and an advance side highest speed position FM, a motor-driven cylinder 7 is driven by a control device 11, and a tilt angle of a trunnion shaft (a swash plate) 6 of the continuously variable transmission 5 is adjusted. At that time, when judged that pressure of operating fluid detected by a pressure sensor 14 exceeds a preset value and a load applied to the static hydraulic continuously variable transmission 5 becomes large, setting is changed to the high speed side as the pressure of the operating fluid largely exceeds the preset value.

22. 发明专利

JPH0872592A TRAVEL CONTROLLER FOR WORKING VEHICLE 失效
公开(公告)号：JPH0872592A
公开(公告)日：1996-03-19
申请号：JP21549394
申请日：1994-09-09
申请人： KUBOTA KK
发明人： KIMURA HIROTO , OCHI TATSUJI
IPC分类号： A01C11/02 , B60W10/04 , B60W10/06 , B60W10/10 , B60W10/103 , B60K41/16
摘要： PURPOSE: To switch an ordinary travel control state to a prescribed low speed state so as to avoid a rice planting machine, which is balanced forward when a seedling planting device is detached therefrom, from overturning. CONSTITUTION: A limit switch 16 is provided for detecting the state of a seedling planting device 2 attached to or detached from a link mechanism 1. When the limit switch 16 detects the state of the seedling planting device 2 detached from the link mechanism, the travel speed of a rice planting machine is lowered to about 0.2m/s.

23. 发明专利

JPH07274630A RICE PLANTER 失效
公开(公告)号：JPH07274630A
公开(公告)日：1995-10-24
申请号：JP7096094
申请日：1994-04-08
申请人： KUBOTA KK
发明人： KIMURA HIROTO , MIYANISHI YOSHIHIDE , OCHI TATSUJI
IPC分类号： A01C11/02
摘要： PURPOSE:To suppress reduction in detection accuracy of a depth of a trench mark accompanying changes in the planting depth of seedlings. CONSTITUTION:In a rice planter constituted by constructing a relative height of a float 11 against a planting transmission case as freely variable and adjustable, and providing sensitivity in controlling ascend and descend of a seedling planting device as to be automatically controllable based on a detection by a trench mark detecting means 24, the trench mark detecting means 24 is composed of a first earth contacting body 24A following in contact with the muddy surface of puddy field by a vertical swing around a center of traverse shaft P3, a second earth contacting body 24B following in contact with the trench mark after passing the float 11 by a vertical swing around a center of traverse shaft P4, and a rotating sensor 24C detecting a relative swing displacement of these contact bodies 24A and 24B by interlocking linkage with these contact bodies 24A and 24B, and the center of traverse shaft P3 which becomes a swing fulcrum of the first contact body 24A, the center of traverse shaft P4 which becomes a swing fulcrum of the second contact body 24B, and the rotating sensor 24C are provided on a center of traverse shaft P2 which becomes a swing fulcrum of the float 11.

24. 发明专利

JPH06241306A RUNNING CONTROLLER FOR WORKING VEHICLE 失效
公开(公告)号：JPH06241306A
公开(公告)日：1994-08-30
申请号：JP2779093
申请日：1993-02-17
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： F16H9/00 , F16H61/04
摘要： PURPOSE:To perform works in such a condition of hardly losing power of an engine without lowering work efficiency. CONSTITUTION:A continuously variable transmission 6 interposed in a vehicle running system is constituted to be allowed shift operation by drive of an actuator 15, provided with a rotational speed detecting sensor 20 for detecting rotational speed of an engine, and so constituted that when the engine rotational speed is less than the lower limit of a set region, the actuator 15 is controlled to decelerate and when it is recovered to the upper limit of the set region, the actuator 15 is controlled to accelerate. It is also provided with an accelerator operation quantity detection sensor 26 for detecting accelerator set value to the engine and based on the detection result of this accelerator operation quantity detection sensor 26, the set region level of the engine rotational speed in vehicle speed control is controlled to be automatically changed to a lower level as accelerator set value becomes lower.

25. 发明专利

JPH06237615A GROUND WORKING MACHINE 失效
公开(公告)号：JPH06237615A
公开(公告)日：1994-08-30
申请号：JP2779393
申请日：1993-02-17
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01B63/10 , A01C11/02
摘要： PURPOSE:To enable the change of the lifting upper limit of a working apparatus by switch operation without complicating the structure. CONSTITUTION:A ground working apparatus is connected to the back of a mobile machine body in a state freely liftable with a lift cylinder 4. The apparatus is provided with a lift operation switch SW1 forced to the side 'OFF' and capable of performing alternate starting operation of the working apparatus 3 between a state to forcedly lift the apparatus to a prescribed upper limit and a state to lower the apparatus to the ground by the operation of the switch to the side 'ON'. When the 'ON' state of the lift operation switch SW1 continues over a prescribed period, the output of a manual controlling tool 32 for the lift control of the ground working apparatus 3 is read and the upper lifting limit of the ground working apparatus is changed based on the output value by the operation of the lift control switch SW1.

26. 发明专利

JPH06227417A PADDY FIELD WORKING MACHINE 失效
公开(公告)号：JPH06227417A
公开(公告)日：1994-08-16
申请号：JP1581493
申请日：1993-02-03
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01C11/02 , B62D6/00 , B62D109/00 , B62D125/00
摘要： PURPOSE:To improve rectilinear running performance while lightening the handle operation at the time of turning at the edge of a ridge between rice fields. CONSTITUTION:A paddy field working machine comprises a steering assisting mechanism B for giving operation assisting force to a steering operation system for steering wheels 8 of a running machine body, wherein the runnig load to the running machine body produced with running on a paddy field is detected, and according to the running load detection result, the steering assisting mechanism B is controlled in such a manner that the more the running load is increased, the more the operation assisting force is increased.

27. 发明专利

JPH06227232A AGRICULTURAL WORKING MACHINE 失效
公开(公告)号：JPH06227232A
公开(公告)日：1994-08-16
申请号：JP1667193
申请日：1993-02-04
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01B63/10 , A01C11/02 , B60G9/02 , B60G17/015 , B60G21/05
摘要： PURPOSE:To enhance the responsiveness for the attitude control of a to-the-ground working device by interposing a driving mechanism and an elasticity lending mechanism between the running machine body and the front and rear axle cases, controlling the driving mechanism in compliance with the left and right inclination angles of the running machine body, and correcting the running machine body into the horizontal attitude. CONSTITUTION:An agricultural working machine is so structured that a to-the-ground working device 3 driven by the first driving mechanism is coupled with the rear of the running machine body 1. A rolling control means is furnished to maintain the to-the-ground attitude of the working device 3 in the specified state. Therein the running machine body 1 is installed with possibility of relative rotation round the fore-and-aft axis on the two axle cases 29, 30 of the front and rear wheels 8, 9. A driving mechanism 31 and an elasticity lending mechanism are interposed between the running machine body 1 and the axle cases 29, 30. An angle sensing mechanism 33 is installed which is to sense the left-right inclination angle of the machine body 1. Thereby the driving mechanism 31 is drive controlled by a machine body correcting means in accordance with the sensing result of the left-right inclination angle, and the running machine body 1 is maintained in the horizontal attitude.

28. 发明专利

JPH06225608A WORKING MACHINE FOR PADDY FIELD 失效
公开(公告)号：JPH06225608A
公开(公告)日：1994-08-16
申请号：JP1581393
申请日：1993-02-03
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01C11/02
摘要： PURPOSE:To precisely detect hardness of mud in a field without thrusting a cylindrical member, etc. CONSTITUTION:A mud surface following type ground working device 3 is relatively liftably connected to a traveling machine body 1, an angle detecting sensor 24 for discovering an angle of inclination in a longitudinal state from a horizontal attitude in the traveling machine body 1 and a relative height detecting sensor 25 for discovering relative height of the ground working device 3 from the machine body are constituted in such a way that the depth of mud layer is computed based on detected results of the angle detecting sensor 24 and the relative height detecting sensor 25, traveling load against a loading engine 5 of the traveling machine body 1 is detected by the number of revolutions of output, etc., and hardness of mud is calculated from the result of calculated depth of mud and that of detected traveling load.

29. 发明专利

JP2003153613A RICE TRANSPLANTER EQUIPPED WITH FEEDER 审中-公开
公开(公告)号：JP2003153613A
公开(公告)日：2003-05-27
申请号：JP2001353081
申请日：2001-11-19
申请人： KUBOTA KK
发明人： NAKAMURA SHOICHI , OCHI TATSUJI
IPC分类号： A01C15/00 , A01C11/00 , A01C11/02
摘要： PROBLEM TO BE SOLVED: To provide a rice transplanter having such a scheme that a feeder for dropping and feeding an agrochemical is conveyed reciprocatingly over a seedling stand along guide rails turning sideways of the seedling stand, and ensuring the seedling stand to be mounted in a well-balanced manner with a structure composed of the guide rails and a feed driving means mounted on one end of the guide rails so as to drive a feed operating mechanism functioning to reciprocatingly move the feeder. SOLUTION: This rice transplanter includes the following design: the discharge port 85b of a feed cylinder 81 extending from the delivery port of the tank 33 of the feeder 30 and functioning to drop the agrochemical from the tank 33 on the seedling tray therethrough is biased from the center in the moving direction of the tank 33 toward a position where the feed driving means 90 is located.

30. 发明专利

JP2001197805A SEEDLING FEEDER FOR RICE PLANTING MACHINE 失效
公开(公告)号：JP2001197805A
公开(公告)日：2001-07-24
申请号：JP2000009099
申请日：2000-01-18
申请人： KUBOTA KK
发明人： ORIMOTO MASAKI , OCHI TATSUJI , TERAMOTO NAGAHARU , KUKIDA TORU , NAKAO YASUNARI , OTOSHI KIMIHIKO , MURATA MITSURU , SAITO SHIGENORI , TAKAHASHI WATARU
IPC分类号： A01C11/00 , B60P3/00
摘要： PROBLEM TO BE SOLVED: To provide a seedling feeder for rice planting machines capable of improving workability in assembling with increasing rigidity of a main frame and excellent in practical use with good work efficiency. SOLUTION: In a seedling feeder for rice planting machines constituted by arranging plural steps of seedling racks 20 for loading and receiving seedlings F in a longitudinal row to be liftable in a main frame 10, lifting the seedling rack 20 on the top step by a lifting drive mechanism 30, while supporting the seedling racks 20 except that of the top step by hanging them one by one on the top seedling rack 20 and bringing the seedling racks 20 in each of the steps to move step by step to the height of a gateway 11 formed in the lower rear end of the main frame 10, the main frame 10 is constituted to be a hollow structure by welding and connecting frame materials such as a lower frame 12, an upper frame 13, main poles 14 on the four corners, several longitudinal intermediate poles 15, 16 in left and right sides and the like, while solely the intermediate poles 15 on one of the bilateral sides are connected to be removable ranging between the lower frame 12 and the upper frame 13.

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