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41. 发明专利

JPH09294432A PADDY FIELD WORKING MACHINE 失效
公开(公告)号：JPH09294432A
公开(公告)日：1997-11-18
申请号：JP10890796
申请日：1996-04-30
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01C11/02
摘要： PROBLEM TO BE SOLVED: To provide a rice-planting machine without increasing frequency of lifting control and without raising a seedling planting device from a predetermined ground height. SOLUTION: In this paddy field working machine, a control system is provided which brings a seedling planting device to go down by deviating the swinging posture of a sensitive float 14A, which is installed to be swingable around a shaft center P having a lateral posture to the seedling planting device with a state pushed by a spring to direct the front part downward, to the front down side based on an objective form OF, go up by deviating the swinging posture to the front up side and stop lifting when the swinging posture is included in a range of a non-controlled zone NC of an angle including the objective form. The uncontrolled zone is set based on the objective form OF to have a larger width for raising the seedling planting device than that for descending the seedling planting device.

42. 发明专利

JPH09149705A WORKING MACHINE 失效
公开(公告)号：JPH09149705A
公开(公告)日：1997-06-10
申请号：JP31209195
申请日：1995-11-30
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01C11/02 , A01B63/10
摘要： PROBLEM TO BE SOLVED: To provide a working machine for preventing a working device from rising and falling irrespective of the operation position of an operating tool, improved in operation safety, by equipping a restraining means for allowing lifting and lowering control of a working device only when a distinguishing means judges the operation tool to be in a neutral position when an engine is started. SOLUTION: This working machine is equipped with a distinguishing means 35 electrically judging the operation position of an operating tool 28 and a restraining means for allowing lifting and lowering control of a working device corresponding to the operation position of the operating tool after the judgment only when the distinguishing means 35 judges the operating tool 28 to be in a neutral position N in starting of an engine attached to a machine body. When the distinguishing means 35 judges whether the operating tool 28 to be a rising position U or a falling position D in the operation of the engine, the control action of the restraining means checks the lifting and lowering control. Afterward, only when the distinguishing means 35 judges the operating tool 28 to be driven to the neutral position N, the control action of the restraining means is preferably set to releases the checked state and to allow the lifting and lowering control of the working device corresponding to the operation position of the operating tool 28.

43. 发明专利

JPH0998602A LIFTING CONTROL DEVICE OF GROUND WORKING MACHINE 失效
公开(公告)号：JPH0998602A
公开(公告)日：1997-04-15
申请号：JP25966695
申请日：1995-10-06
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01C11/02 , A01B63/10
摘要： PROBLEM TO BE SOLVED: To improve a ground working machine for planting so as not to leave floating seedlings and virgin soil by a high speed traveling even there are relatively large irregularities in a field. SOLUTION: In this lifting control device, a lifting control means A of a planting device, a speed detecting means B consisting of a pickup 25 of an engine rotation number and a potentiometer 23 detecting an operation amount of a trunnion shaft 21a of HST 21 and further a lifting speed control means C which brings descending speed of a planting device faster when a traveling speed becomes faster and fixes an increasing rate of lifting of the planting device accompanied by increasing of the traveling speed of a traveling machine body lower than the descending rate are installed. The lifting speed control means C functions so that the lifting speed of the planting device becomes lower when the traveling speed is faster.

44. 发明专利

JPH0994013A WORKING MACHINE IN PADDY FIELD 失效
公开(公告)号：JPH0994013A
公开(公告)日：1997-04-08
申请号：JP25260995
申请日：1995-09-29
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01C11/02 , A01B63/00 , A01B63/10
摘要： PROBLEM TO BE SOLVED: To reasonably set the lowering limit of a chemical sprayer at the time of performing the lifting and lowering control when connecting the chemical sprayer in place of a seedling transplanting device to a mobile machine body. SOLUTION: This working machine in a paddy field is equipped with a controller 45 capable of driving a cylinder 8 so as to maintain the results of sensing with a float sensor 40 for sensing the shaking posture of a ground contact float 20 provided in a seedling transplanting device so as to enable the free shaking around the shaft center of the transverse posture at the set value set with a setter 30 and performing the lifting and lowering of the seedling transplanting device therein. The working machine is further provided with a positional controlling means F for performing the control for setting the height of a chemical sprayer from the mobile machine body by driving with the cylinder 8 when connecting the chemical sprayer in place of the seedling transplanting device to the mobile machine body and a setting changeover means E for setting the set value set with the setter 30 at the lowering limit of a working device A when performing the lifting and lowering control with the positional controlling means F.

45. 发明专利

JPH0974838A SULKY WORKING MACHINE 失效
公开(公告)号：JPH0974838A
公开(公告)日：1997-03-25
申请号：JP23019295
申请日：1995-09-07
申请人： KUBOTA KK
发明人： KIMURA HIROTO , OCHI TATSUJI , MIYANISHI YOSHIHIDE
IPC分类号： A01C11/02
摘要： PROBLEM TO BE SOLVED: To form a sulky working machine so as to freely change over the direction of lifting and lowering operations to the side of the opposite direction by a simple operations after starting the lifting and lowering operations of a seedling transplanting device with a changeover lever. SOLUTION: This sulky working machine is obtained by installing a controller 28 capable of starting the control over the lifting of a seedling transplanting device to the upper limit when operating a changeover lever 22 returned to the neutral position at the time of no operation to a lifting position and further starting the control over the lowering of the seedling transplanting device to the operating height when operating the changeover lever 22 to a lowering position and an operating direction changeover means E capable of actuating the seedling transplanting device in the opposite direction when the changeover lever 22 is operated to a position for actuating the seedling transplanting device to the side of the direction opposite to the operating direction of seedling transplanting device when located in the course of the lifting operations or the lowering operations by operating the changeover lever 22.

46. 发明专利

JPH08322343A PADDY FIELD WORKING MACHINE 失效
公开(公告)号：JPH08322343A
公开(公告)日：1996-12-10
申请号：JP12997995
申请日：1995-05-29
申请人： KUBOTA KK
发明人： OCHI TATSUJI , KIMURA HIROTO
IPC分类号： A01C11/02 , B60W10/04 , B60W10/10 , B60W10/103 , B62D49/00 , F16H61/40 , F16H61/435 , B60K41/16
摘要： PURPOSE: To provide a paddy field working machine having a structure capable of restarting with little shock when a main clutch is shifted to a transmission cutout side and returned to a transmission side and enabling the turning of a machine body at a ridge side under the shift of a working clutch in a transmission cutout side without lowering workability. CONSTITUTION: When a main clutch 21 is shifted to a transmission cutout side, a transmission 15 for running is automatically shifted to the specified first low-speed position, and when a working clutch 8 of a ground working apparatus 6 is shifted to a transmission cutout side, the transmission 15 for running is automatically shifted to the specified second low-speed position. In this structure, the first low-speed position is set at the lower speed side than the second low- speed position.

47. 发明专利

JPH08322341A WORKING VEHICLE 失效
公开(公告)号：JPH08322341A
公开(公告)日：1996-12-10
申请号：JP13493995
申请日：1995-06-01
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01C11/02 , G05B13/02 , G05D1/08 , G06F11/00
摘要： PURPOSE: To enable the prevention of malfunction even in the case where controlling parameters are inappropriate. CONSTITUTION: This working machine is provided with a float sensor 21 for determining the ground height of a seedling planting apparatus, a setting device 34 for setting a targeting posture of a float, an EEPROM51 for holding values for correcting the sensor and the setting device, a controlling device 31 for controlling a hydraulic cylinder 8 based on these signals and a parameter shifting means B. When parameters memorized in the EEPROM51 are inappropriate, the parameter shifting means B controls vertical motions of a seedling planting apparatus by operating a hydraulic cylinder 8 by using spare parameters prepared in advance in place of the inappropriate parameters.

48. 发明专利

JPH08118979A TRAVELLING SPEED CHANGING STRUCTURE OF RICE PLANTER FOR RIDING 失效
公开(公告)号：JPH08118979A
公开(公告)日：1996-05-14
申请号：JP25488094
申请日：1994-10-20
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： B60K20/00 , A01C11/02 , B60K17/10 , F16H61/02 , F16H61/40 , F16H61/435 , F16H61/66
摘要： PURPOSE: To avoid a state to drop seedlings from a planting claw by setting and changing a minimum speed position of a stepless speed change gear to the constant speed side at the time of detecting a road travelling state and setting and changing the minimum speed position to a high speed side at the time of detecting a rice pad travelling state. CONSTITUTION: When an auxiliary speed change lever 13 is operated at a high speed position H, a control device 1 judges it as in a road travelling state, and a first low speed position F1 on the forwarding side and a first low speed position R1 on the retreating side are set about a stationary hydraulic speed changer 5. At this time, when a main speed change lever 10 is operated at the forwarding high speed side beyond the low speed position F1, a trunnion shaft 6 (swash plate) is operated on the high speed side by a cylinder 7 with an angle A1 corresponding to the position F1 as a starting point. In the meantime, when the auxiliary lever 13 is operated at a low speed position L, it is judged as in a rice pad travelling state, a second low speed position F2 on the forwarding side which is a higher speed side than each of the low speed positions F1, R1 and a low speed position R2 on the high speed side are set.

49. 发明专利

JPH07107824A MECHANISM FOR CONTROLLING LIFTING AND LOWERING OF RICE TRANSPLANTER 失效
公开(公告)号：JPH07107824A
公开(公告)日：1995-04-25
申请号：JP25389293
申请日：1993-10-12
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01C11/02
摘要： PURPOSE:To provide a mechanism for controlling the lifting and lowering of a rice transplanter capable of always automatically setting the sensing sensitivity to that suitable for a field without regard to conditions of a field. CONSTITUTION:This mechanism for controlling the lifting and lowering of a rice transplanter is equipped with plural ground contact floats (9a), (9b) and (9c) so as to enable the free vertical movement in a seedling planter and a controlling means for controlling a lifting cylinder so as to maintain the extent of the vertical movement cased on the fluctuation in ground contact pressure for the ground contact float (9b) at the set value. The mechanism for controlling the lifting and lowering of the rice transplanter is further provided with furrow rut depth sensing means 14 and 14 for sensing the depths of furrow ruts formed on the muddy surface in respective passage ruts in the ground contact floats (9a) and (9c) located on both left and right sides. The control is performed so as to change the sensing sensitivity for the vertical movement of the ground contact floats based on the fluctuation in ground contact pressure to the insensitive side when the width of fluctuation in the average value of values sensed with the respective furrow rut depth sensing means 14 and 14 is the set value or above, to the sensitive side when the absolute value of the average value of sensed values is larger than the set value and to the insensitive side when the absolute value is smaller than the set value.

50. 发明专利

JPH0670620A CONTROLLER FOR LIFTING AND LOWERING OF RICE TRANSPLANTER 失效
公开(公告)号：JPH0670620A
公开(公告)日：1994-03-15
申请号：JP22674192
申请日：1992-08-26
申请人： KUBOTA KK
发明人： OCHI TATSUJI
IPC分类号： A01C11/02
摘要： PURPOSE:To obtain a controller for lifting and lowering of a rice transplanter capable of automatically suppressing a hunting state and maintaining the stable lifting and lowering operation. CONSTITUTION:The controller for lifting and lowering of a rice transplanter is constructed by connecting a seedling planter to a mobile machine body drivably, liftably and lowerably with a lifting cylinder 6, installing a potentiometer (PM) for sensing the extent of vertical rocking following the fluctuation in ground contact pressure of a ground contact float 4 provided vertically rockably around a rear fulcrum in the seedling planter, driving and controlling the lifting cylinder 6 based on the results of sensing with the potentiometer so as to maintain the seedling planter at a prescribed ground height and reducing and controlling the machine body travel speed following the operation to sense the practical agreement of the fluctuation period of the sensed values in the potentiometer (PM) with the repeated period of the driving signal relatively to the lifting cylinder 6 when the practical agreement is sensed.

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