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1. 发明专利

JP2003267257A WORKING MACHINE 审中-公开
公开(公告)号：JP2003267257A
公开(公告)日：2003-09-25
申请号：JP2002076122
申请日：2002-03-19
申请人： KUBOTA KK
发明人： KUBOTSU MAKOTO , NAKAGAWA YOSHIKIYO
IPC分类号： A01B69/00 , A01C11/02 , B62D11/08 , B62D49/00
摘要： PROBLEM TO BE SOLVED: To perform an automatic steering suitable for running in a field and a road in a working machine having right and left side-clutches for engaging and disengaging a transmission to and from right and left rear wheels and an automatic steering means for disengaging and operating the side-clutch for the rear wheels on the inside of turning based on the steering operation of the front wheels beyond a set angle from the straight forward traveling attitude. SOLUTION: This working machine comprises a timing change means for changing the set angle of the automatically steered front wheels interlockingly with a gear shifting operation for a traveling speed. The timing change means is formed so as to increase the set angle in a low speed movement larger than that in a high speed movement. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2003180112A SEEDLING PLANTING APPARATUS 审中-公开
公开(公告)号：JP2003180112A
公开(公告)日：2003-07-02
申请号：JP2001381255
申请日：2001-12-14
申请人： KUBOTA KK
发明人： KUBOTSU MAKOTO , KATAGAWA MAKOTO
IPC分类号： A01C11/02
摘要： PROBLEM TO BE SOLVED: To smoothly transfer of a seedling having poor slipperiness in longitudinal direction even by placing a large number of seedlings on a seedling holding bed. SOLUTION: An extended seedling placing bed 40 and a longitudinal feeding roller 45 for seedling are placed at the upper end of a seedling holding bed 16. A seedling B placed over the extended seedling placing bed 40 and the seedling placing bed 16 is transferred to the longitudinal feeding roller 45. When the preceding seedling B at the lower end side of the seedling holding bed is transferred in longitudinal direction, the longitudinal feeding roller 45 is rotated to feed the next seedling B in a manner following the preceding seedling B. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2002356119A FARM WORKING MACHINE 失效
公开(公告)号：JP2002356119A
公开(公告)日：2002-12-10
申请号：JP2001164442
申请日：2001-05-31
申请人： KUBOTA KK
发明人： TANAKA TOMIO , FUJII KENJI , NAKAGAWA YOSHIKIYO , KUBOTSU MAKOTO
IPC分类号： A01C11/02 , B60W10/04 , B60W10/06 , B60W10/10 , B60W10/101 , F02D29/00 , G05G9/00 , B60K41/14 , B60K41/00
摘要： PROBLEM TO BE SOLVED: To provide a farm working machine in which shift setting and accelerator setting can be performed by operation of a single operating implement, and corrective operation to the accelerator setting can be automatically performed. SOLUTION: A governor lever 22 of a governor mechanism 21 of a mounted engine 8, and a shift operating implement of a hydrostatic pressure type continuously variable transmission 9 are linked by a release wire mechanism 41A, and only in a forward operation region, the outer wire end of the release wire mechanism 41 is operated to move by an actuator 23 to perform the change operation of the governor lever 22 without changing the set position of the shift operating implement.

4. 发明专利

JP2002295278A FARM EQUIPMENT 失效
公开(公告)号：JP2002295278A
公开(公告)日：2002-10-09
申请号：JP2001099024
申请日：2001-03-30
申请人： KUBOTA KK
发明人： FUJII KENJI , TANAKA TOMIO , KUBOTSU MAKOTO , NAKAGAWA YOSHIKIYO , TANAKA MASAICHI
IPC分类号： A01C11/02 , F02D11/10 , F02D29/00
摘要： PROBLEM TO BE SOLVED: To provide a farm equipment which is superior in handleability and which does not require operation for acceleration setting on the part of humans. SOLUTION: This farm equipment is composed, so as to set operate the governing mechanism 21 of an on-vehicle engine 8 by an actuator 23. The working equipment is provided with a control device 26 for performing operation control of the actuator 23, based on the detection result of the shift setting condition of a variable speed gear 9 for traveling, so that the shift set condition has a preset, predetermined relation with the acceleration set condition of the governing mechanism 21. Furthermore, the machine is composed so as to perform the acceleration control of the governing mechanism 21, when the output rotation speed of the variable speed gear 9 lowers below the rotation speed set up, corresponding to the shift setting condition.

5. 发明专利

JP2002234453A POWER STEERING DEVICE FOR WORKING VEHICLE 失效
公开(公告)号：JP2002234453A
公开(公告)日：2002-08-20
申请号：JP2001030913
申请日：2001-02-07
申请人： KUBOTA KK
发明人： TANAKA TOMIO , KUBOTSU MAKOTO , FUJII KENJI , NAKAGAWA YOSHIKIYO
IPC分类号： A01B69/00 , A01C11/02 , B62D5/07 , B62D5/09
摘要： PROBLEM TO BE SOLVED: To provide a power steering device capable of setting a steering wheel in either of a condition allowing a steering wheel to turn easily by an external force applied to a wheel and a condition preventing its easy turn. SOLUTION: A control valve part 27 in a hydraulic actuator 22 is provided with two control valves 25 and 27. When one first control valve 25 is connected to a hydraulic pump P by a selector valve 29 and connected to the hydraulic actuator 22 by a selector valve 28, the control valve part 27 allows free operation of the hydraulic actuator 22 in a neutral condition. When the other second control valve 26 is connected to the hydraulic pump P by the selector valve 29 and connected to the hydraulic actuator 22 by the selector valve 28, the control valve part 27 restricts free operation of the hydraulic actuator 22 in the neutral condition.

6. 发明专利

JP2001275414A SULKY TYPE PADDY WORKING MACHINE 失效
公开(公告)号：JP2001275414A
公开(公告)日：2001-10-09
申请号：JP2000098527
申请日：2000-03-31
申请人： KUBOTA KK
发明人： KOJIMA YOSHIYUKI , KUBOTSU MAKOTO
IPC分类号： A01C11/02 , B62D11/08
摘要： PROBLEM TO BE SOLVED: To reasonably carry out an improvement in turning operability of a machine body in a sulky type paddy working machine connected to working implements different in the number of rows at a low cost. SOLUTION: This sulky type paddy working machine is obtained by linking a steering linking mechanism 111 for mechanically steering front wheels 1 to a left and a right side clutches 96 and increasing the front wheel steering angle when the side clutch 96 on the inside of the turning is disengaged in a model provided with the working implement of a smaller number of rows from the front wheel steering angle when the side clutch 96 on the inside of the turning is disengaged in a model equipped with the working implement of a larger number of rows in the sulky type paddy working machine equipped with the side clutches 96 respectively in left and right rear wheels 2 and further a side clutch automatic operation mechanism for performing disengaging operation of the side clutch 96 corresponding to the rear wheel 2 to be the inside of the turning.

7. 发明专利

JP2000313241A TRAVEL DEVICE FOR AGRICULTURAL WORKING VEHICLE 失效
公开(公告)号：JP2000313241A
公开(公告)日：2000-11-14
申请号：JP12475299
申请日：1999-04-30
申请人： KUBOTA KK
发明人： KUBOTSU MAKOTO , YAMASHITA MAKOTO , MATSUKI NAOKI , KOTANI SHINSUKE , MATSUMURA TETSUYA , SHIMIZU TAKANORI
IPC分类号： B60K17/04
摘要： PROBLEM TO BE SOLVED: To install a travel device for an agricultural working vehicle, equipped with a rear wheel drive case having aright and left pair of rear axles, so that soil can not adhere to a clutch brake device, for separately actuating right and left rear axles respectively, and the rear wheel driving case can be lightened and miniaturized. SOLUTION: A rear wheel drive case RK is constituted of a center transmission case part 15, and a side transmission case part 16 manufactured separately from the case part 15 and linked to both the end sides of the case part 15. Left and right clutch brake devices CBL and CBR are provided in the insides of the left and right side transmission case parts 16 respectively.

8. 发明专利

JP2000272359A TRANSMISSION DEVICE FOR PADDY FIELD WORKING VEHICLE 失效
公开(公告)号：JP2000272359A
公开(公告)日：2000-10-03
申请号：JP8084999
申请日：1999-03-25
申请人： KUBOTA KK
发明人： KUBOTSU MAKOTO , YAMASHITA MAKOTO , KOTANI SHINSUKE
IPC分类号： A01C11/02 , B60K17/04
摘要： PROBLEM TO BE SOLVED: To enable use of a wet multiple disc clutch without complication of the structure by providing a static hydraulic type non-stage transmission for inputting the motive power from an engine and outputting the same to a transmission case, and providing a wet multiple disc clutch for intermitting the motive power from the non-stage transmission in the transmission case. SOLUTION: A rice transplanter is provided with a pair of right and left front driving wheels for steering and a pair of right and left rear driving wheels, with the driving front wheels axially supported by a front axle case 8 elongating from a transmission case 9. A wet multiple disc clutch 50 for transmitting the engine motive power via a static hydraulic type non-stage transmission 41 is built-in the transmission case 9 such that the motive power passed through the clutch 50 is transmitted to the right and left driving front wheels via a high and low two-stage transmission mechanism 51 and a differential mechanism 52. Furthermore, the motive power is transmitted to the driving rear wheels via the engagement of an output gear 79 on a differential case 73 and a gear 78 on a transmission shaft 77 to the driving rear wheels. Furthermore, a one-way clutch 53 is provided in the transmission system of a young rice plant bedding device.

9. 发明专利

JP2000135004A SULKY RICE TRANSPLANTER 失效
公开(公告)号：JP2000135004A
公开(公告)日：2000-05-16
申请号：JP26204399
申请日：1999-09-16
申请人： KUBOTA KK
发明人： KUBOTSU MAKOTO
IPC分类号： A01B69/02 , A01C11/02 , F16H9/12 , F16H57/04
摘要： PROBLEM TO BE SOLVED: To provide a sulky rice transplanter capable of efficiently transplanting seedlings to a remaining farm field left along a levee. SOLUTION: This transplanter has a wiredrawing marker 29 to draw a running mark line on a farm field, and an auxiliary marker 29a capable of setting a transplanting width between the levee by running its top end along the levee and the auxiliary marker 29a is installed on the marker 29.

10. 发明专利

JP2000027960A BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION 失效
公开(公告)号：JP2000027960A
公开(公告)日：2000-01-25
申请号：JP19531998
申请日：1998-07-10
申请人： KUBOTA KK
发明人： KUBOTSU MAKOTO , NISHIDE TOMOHITO
IPC分类号： F16H9/18
摘要： PROBLEM TO BE SOLVED: To easily fix and disassemble a fixed cam member in a rotating cam mechanism by forming a detent hole on the fixed cam member constituting the rotating cam mechanism, and inserting a fixed shaft extended from the machine body side in cantilever form to the detent hole to engagingly locking the fixed cam member in such a manner as not to be rotatable. SOLUTION: Arms 45 are radially protruded from the circumference of a fixed cam member 37, for example, from two positions, and a detent hole 46 is formed at the tip of one arm 45. A fixed shaft 47 arranged on an engine 20 side is inserted to the detent hole 46 to lock the fixed cam member 44. The fixed shaft 47 is protruded in cantilever form from a cylindrical shaft 49 slidably fitted onto a screw shaft 48 bolted to the side surface of the engine 20. According to this structure, the fixed cam member 37 constituting a rotating cam mechanism 36 can be supported so as not to be rotatable only by inserting the fixed shaft 47 extended in cantilever form from the machine body side to the detent hole 46 formed on the fixed cam member 37.

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