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1. 发明专利

JP2004008185A LEVELING PLATE-SUPPORTING DEVICE OF ROTARY PLOWING UNIT 审中-公开
公开(公告)号：JP2004008185A
公开(公告)日：2004-01-15
申请号：JP2002170280
申请日：2002-06-11
申请人： ISEKI AGRICULT MACH
发明人： MURAKAMI TATSUZO , ISHII NAOHIKO , KANENAMI SEIJI
IPC分类号： A01B33/02 , A01B33/10 , A01B33/12 , A01B35/04
摘要： PROBLEM TO BE SOLVED: To provide a leveling plate-supportingdevice of an improved rotary plowing unit, capable of performing the level preparation of rice paddies. SOLUTION: This leveling plate-supporting device of a rotary plowing unit is provided by connecting the rotary plowing unit 1 at the rear part of an agricultural tractor as capable of being lifted up and down, covering the upper direction of a multiple number of plowing claws 8 rotating in a state of up cut and mounted at a plowing shaft 6 with a main plowing cover 9 having a wide width in left and right directions, mounting a rear plowing cover 10 at the rear part of the main plowing cover 9 as freely turning up and down, pivoting a leveling plate 12, forwardly and upwardly inclined, at the rear end of the rear plowing cover 10 so as to be freely turned up and down, and installing a leveling plate-supporting means for supporting the leveling plate 12 in a low pressure state for reducing its own weight by pulling the plate 12 up between a plowing frame and rear plowing cover 10. It is possible to perform a level preparation work of rice paddies by reducing protruded mud soil from left and right both sides of the leveling plate 12 even in the paddy preparation plowing work. COPYRIGHT: (C)2004,JPO

2. 发明专利

JPH10164908A TRANSMISSION FOR WORK VEHICLE 失效
公开(公告)号：JPH10164908A
公开(公告)日：1998-06-23
申请号：JP33374496
申请日：1996-12-13
申请人： ISEKI AGRICULT MACH
发明人： ISHIDA TOMOYUKI , HORI TOSHIYUKI , ISHII NAOHIKO
IPC分类号： A01B63/10 , F16H61/16
摘要： PROBLEM TO BE SOLVED: To dissolve the problem of the presence of the danger of dragging a work machine and damaging it in the state of storing the freely vertically movably provided work machine in a grounded state at the time of storing a work vehicle such as a tractor and a combine, etc., to a garage or the like and the danger of damaging the equipment and entrance, etc., of the garage at the time of positioning the work machine at an upper part and storing it. SOLUTION: In the tractor 10 provided with the work machine l provided freely vertically movably by the turning of a lift arm and a speed change controller capable of changing a speed change position by the operation of a hydraulic cylinder and a hydraulic clutch, the operation of the hydraulic cylinder and the hydraulic clutch is held neutral or on a low speed side for not damaging the work machine by the command of a controller until the position confirmation operation (matching of a lift arm angle and the set angle of a position lever 4) of the work machine 1 set beforehand is performed at the time of starting an engine.

3. 发明专利

JPH08116714A APPARATUS FOR CONNECTING ELECTRONIC COUPLER OF TRACTOR HITCH 失效
公开(公告)号：JPH08116714A
公开(公告)日：1996-05-14
申请号：JP25635494
申请日：1994-10-21
申请人： ISEKI AGRICULT MACH
发明人： HONDA HARUYOSHI , KAMATA MASAYUKI , KANENAMI SEIJI , ODAGIRI HAJIME , ISHII NAOHIKO
IPC分类号： A01B59/042 , A01B59/043
摘要： PURPOSE: To simplify connecting operations for harness couplers in a harness for the electronic control on the side of a working machine in connecting the working machine to a hitch member. CONSTITUTION: This apparatus for connecting electronic couplers of a tractor hitch is obtained by interlocking a coupler connecting mechanism 12 for connecting, engaging and disengaging the harness couplers 10 and 11 held between a hitch member 2 and the lateral side of a working machine 4 by operating each lower link hook 9 for holding the engagement of each lower hook 7 with a lower pin 8.

4. 发明专利

JPH04138922A FRONT WHEEL ACCELERATION CONTROLLER OF POWER VEHICLE 失效
公开(公告)号：JPH04138922A
公开(公告)日：1992-05-13
申请号：JP26175390
申请日：1990-09-28
申请人： ISEKI AGRICULT MACH
发明人： ONO HIROYOSHI , SHIMAMOTO TOSHIJI , ISHII NAOHIKO , KATAUE NOZOMI , IMANISHI KATSUMI
IPC分类号： B60K17/34
摘要： PURPOSE:To eliminate danger that the body of a vehicle turns over on its side so as to improve safety by checking change-over of a front wheel from low speed into high speed when a certain period of time elapses after lifting of a work machine in the power vehicle in which peripheral speed of the front wheel and peripheral speed of a rear wheel can be changed over. CONSTITUTION:When a clutch 23 on the high speed side of a high and low speed change-over device 20 is connected, high speed rotation is transmitted to a front wheel drive shaft 16 via a gear 11, a large-diameter gear 15, and a small-diameter gear 21 sequentially. Also, when a clutch 24 on the low speed side of a high and low speed change-over device 20 is connected, low speed rotary power is transmitted to the front wheel drive wheel 18 via the gear 11, the large-diameter gear 15, a small-diameter gear 16, and a large-diameter gear 22 sequentially. in this case, a two-drive and four- drive change-over switch 31, a switch 32 for ascending and descending work machine, and a cut angle detection switch 27 are connected to the input side of a controller 30. On the other hand, each solenoid valve for high speed and low speed which controls the high and low speed change-over device 20 is connected to the output side of the controller 30. When the work machine rises and thereafter a certain period of time elapses, it checks change-over from low speed to high speed of the high and low speed change-over device 20.

5. 发明专利

JPH03159880A POWER VEHICLE 失效
公开(公告)号：JPH03159880A
公开(公告)日：1991-07-09
申请号：JP29901889
申请日：1989-11-16
申请人： ISEKI AGRICULT MACH
发明人： ISHII NAOHIKO
IPC分类号： B62D7/14
摘要： PURPOSE:To carry out safe steering operation by furnishing a control means to change over a transmission to the low speed side when steering of the machine body is set in any mode other than the front wheel steering mode and when the gearing is shifted to the reverse high-speed range side. CONSTITUTION:A managerial tractor of four-wheel drive type is operable in three modes; i.e., front wheel steering mode I, front/rear wheel same-phase steering mode II, and front/rear wheel opposite phase steering mode III. Steering operation is made upon selecting one of these modes, and the transmission is provided with a forward/reverse changeover device and an aux. transmission selectable from at least two positions, high and low. A CPU 20 controls a control valve 28 to control hydraulic clutches 32, 35 of the mentioned forward/ reverse changeover device and another control valve 29 to control hydraulic clutches 39, 40 of the aux. transmission. Controls shall be made so that only the hydraulic clutch 39 on the low speed side is engaged in the modes II, III in which the front and rear wheels are steered simultaneously, and thereby high speed backing of the machine body is checked.

6. 发明专利

JPS6220924B2 失效
公开(公告)号：JPS6220924B2
公开(公告)日：1987-05-09
申请号：JP11108781
申请日：1981-07-15
申请人： ISEKI AGRICULT MACH
发明人： MURAKAMI YOSHIAKI , ISHII NAOHIKO
IPC分类号： B60K23/00 , F16H63/42 , G05G25/00

7. 发明专利

JPS60114350A THRESHING, HULLING AND SORTING APPARATUS 失效
公开(公告)号：JPS60114350A
公开(公告)日：1985-06-20
申请号：JP22234883
申请日：1983-11-25
申请人： ISEKI AGRICULT MACH
发明人： AONO SHIYOUHEI , SHIMAMOTO TOSHIJI , SHIRAISHI HIROAKI , MIYAUCHI NARIMASA , ISHII NAOHIKO
IPC分类号： A01F12/48 , B02B5/02

8. 发明专利

JPS5812833A SPEED CHANGE POSITION INDICATING DEVICE FOR POWERED AGRICULTURAL MACHINE 失效
公开(公告)号：JPS5812833A
公开(公告)日：1983-01-25
申请号：JP11108781
申请日：1981-07-15
申请人： ISEKI AGRICULT MACH
发明人： MURAKAMI YOSHIAKI , ISHII NAOHIKO
IPC分类号： B60K23/00 , F16H63/42 , G05G25/00
摘要： PURPOSE:To select an optimum speed change lever with no error by providing a selector choosing an optimum speed corresponding to the work content and an indicator displaying a speed change lever corresponding to the speed. CONSTITUTION:Before starting operations, a worker gives a direction to a selector 6 to obtain an optimum traveling speed for the work content, for instance, through a switch 8 for ''trencher'', then the speed change position corresponding to an approximately intermediate speed between about 0.15-0.3Km/h is displaed on an indicator 17... through a control circuit 3. The worker operates only by switching a plurality of speed change levers 14, 15, 16 properly in response to the display. Accordingly, such a troublesome operation can be omitted as to switch by relying on the sixth sense or by consulting a speed table as customary in the past, thus reliable speed change operations can be performed with no operational error.

9. 发明专利

JP2000211389A TURNING DEVICE FOR WORK VEHICLE 失效
公开(公告)号：JP2000211389A
公开(公告)日：2000-08-02
申请号：JP1333899
申请日：1999-01-21
申请人： ISEKI AGRICULT MACH
发明人： FURUKAWA KOJI , NAGANO RYOTA , ISHII NAOHIKO
IPC分类号： B60K17/348
摘要： PROBLEM TO BE SOLVED: To enable a turn while driving that is appropriate for the surrounding conditions of the area of the turn, by providing a steering means for changing the drive speed of the running device during turning near a steering member, in a work vehicle such as a tractor having a pair of left and right running devices for driving by means of a continuously variable transmission. SOLUTION: After driving force from the engine has been reduced by a sub transmission, it is then transmitted via a front wheel transmission shaft and a front wheel differential gear to a pair of left and right front wheels of a tractor. Meanwhile, the driving force is also able to be transmitted to the front wheels through another transmission route, that is, from a hydraulic transmission which includes a hydraulic motor which is a continuously variable transmission connected to the front wheel differential gear. A front wheel acceleration dial, a front wheel acceleration ratio up switch 9 and a front wheel acceleration ratio down switch 9, for appropriately changing the front wheel drive speed during turning, or the like are connected to a controller which is related to front wheel acceleration steering control. Then, the acceleration ratio up/down switches 9, 9 are arranged integrally with a steering wheel 10 or the like so as to improve maneuverabilty thereof.

10. 发明专利

JP2000177419A FRONT WHEEL ACCELERATION CONTROLLER FOR WORKING VEHICLE 失效
公开(公告)号：JP2000177419A
公开(公告)日：2000-06-27
申请号：JP36153698
申请日：1998-12-18
申请人： ISEKI AGRICULT MACH
发明人： FURUKAWA KOJI , UEJI HITOSHI , YAMAZAKI TOSHIAKI , ISHII NAOHIKO , NAGANO RYOTA
IPC分类号： B60K23/08 , B60K17/30 , B60K17/348
摘要： PROBLEM TO BE SOLVED: To prevent the front wheels from sinking into the ground and to prevent the accelerating ratio of the front wheels from becoming short in driving at four-wheel drive in a field of a soft ground and turning the car body there by increasing the acceleration ratio of the front wheels in braking the rear wheel positioned inside in turning more than that without braking the rear wheels. SOLUTION: When a car body is judged to enter the turning movement (S8) from the detection value of a front wheel curving angle sensor in driving straightly at four-wheel drive mode, it is judged whether one-brake operation is performed relative to a rear wheel positioned inside in turning (S9). When there is one-brake operation (S9 Yes) in turning at the four-wheel drive mode, it is judged the ground is soft so that the front wheels easily sink in the ground, requiring a small turning circle, and therefore the acceleration ratio of the front wheels set to 'the maximum' (S10). On the contrary, where there is no one-brake operation (S9 No) in turning at the four-wheel drive mode, it is judged that the operator has no intention of having a small turning circle and the acceleration ratio of the front wheel is set to 'medium' (S11).

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