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公开(公告)号：JPS5657521A
公开(公告)日：1981-05-20
申请号：JP13433979
申请日：1979-10-17
Applicant: KUBOTA LTD
Inventor： NAKAMURA NORIMI , HASHIMOTO OSAMI
IPC: B60K17/356 , B60K17/10 , B60K17/34 , B60K23/08
Abstract: PURPOSE:To run the tractor at a speed in the state having less power loss in the whole speed range, by providing a mechanism for automatically controlling front and rear wheels so that the speed ratio of them is 1 to 1. CONSTITUTION:S1, S2 designate swash plates for regulating amounts of oil of pumps P1, P2 to be discharged, the swash plate S1 on the front wheel side is provided with a lever 12 for manual operation of the swash plate S1 and the swash plate S2 on the rear wheel side is provided with a motor 13. To an output shaft of each of the motors M1, on the front wheel side is provided a detecting device 14 for detecting the rotational speed thereof, and the detecting devices 14 are connected with the motor 13 interactively through a control mechanism A. According to the rotational speed detected by the detectors 14, the control mechanism A rotates the motor 13 so that the swash plate S2 may be rotated by an angle to discharge an amount of hydraulic oil that causes the speed of the rear wheels 2 to be the same as the speed of the wheels 1. Thus, if the speed of the wheels 1 is changed by the operation of the lever 12, the speed ratio of the rear wheels 2 to the front wheels 1 can be kept at 1 to 1 at all times.
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公开(公告)号：JPS5657520A
公开(公告)日：1981-05-20
申请号：JP13433879
申请日：1979-10-17
Applicant: KUBOTA LTD
Inventor： NAKAMURA NORIMI , HASHIMOTO OSAMI , OKUYAMA SHIGEAKI
IPC: B60K17/356 , B60K17/10 , B60K17/34 , B60K23/08
Abstract: PURPOSE:To suitably exhibit the power steering function and to improve the cornering performance, by operating speed change of right and left speed change gears counteractively with each other with the operation thereof interlocking with the steering operation of a steering wheel. CONSTITUTION:Each of the speed change gear 4 comprises a hydraulic motor M with a flow control valve V, and both the hydraulic motors M are connected to a hydraulic pump P in parallel. Each control valve V is located in an intermediate oil circuit of a bridge circuit 12 with check valves 11 located in an oil line from the motor M to the pump P. The circuit 12 operates the pump P reversibly to move wheels 1 forwardly or backwardly. In accordance with the direction and magnitude of a rotational angle of a pitman arm 9 by an angle detecting device 14, an electrical control circuit 15 sends a control signal to both electromagnetic actuators 13. The actuators 13, the control circuit 15, the angle detector 14, the pitman arm 9 and others constitute an interlocking mechanism A for operating the speed change of the right and left speed change gears 4 counteractively with each other in accordance with the steering angle of the sterring wheel 3.
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公开(公告)号：JPS5474955A
公开(公告)日：1979-06-15
申请号：JP14312377
申请日：1977-11-26
Applicant: KUBOTA LTD
Inventor： HASHIMOTO OSAMI
IPC: F16H61/16 , F16H61/18 , F16H61/22 , F16H61/26 , F16H63/00 , F16H63/08 , F16H63/30 , F16H63/34 , F16H63/38
Abstract: PURPOSE:To provide a transmission, used for cars such as tractor, free of unexpected starting even when the operator's body happens to touch a gear shifting lever or shifting to neutral when the car is overloaded. CONSTITUTION:A stopper 28 and a shaft 25 which are free to be engaged with or withdrawn from the retaining face on a shift rod 11, a lock mechanism 33 comprising a transmission stopping lever 26 and so on and a clutch pedal 20 are so connected to one another with a rod 27, a clutch arm 24, a rod 23 and so on as to be interlocked with one another. In other words, only when the pedal 20 is pressed down, the stopper 28 is withdrawn from retaining face on the shift rod 11 so that the shift rod 11 can be axially shifted, while a shift gear 13 can be operated by a gear shifting lever 3. With such an arrangement, unless the clutch pedal 20 is depressed, no operation of the lever 3 can be done.
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公开(公告)号：JPS602207B2
公开(公告)日：1985-01-19
申请号：JP13434479
申请日：1979-10-16
Applicant: KUBOTA LTD
Inventor： NAKAMURA NORIMI , OKUYAMA SHIGEAKI , HASHIMOTO OSAMI
IPC: B60K17/356 , B60K17/10 , B60K17/34 , B60K23/08
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公开(公告)号：JPS58211215A
公开(公告)日：1983-12-08
申请号：JP9577882
申请日：1982-06-03
Applicant: Kubota Ltd
Inventor： TANAKA SHIGERU , HASHIMOTO OSAMI
CPC classification number: G05D1/0236 , G05D2201/0208
Abstract: PURPOSE:To execute exactly a vehicle guidance, by providing a photodetector being long in a vehicle direction, also turning a laser emitting body in the horizontal direction in a constant period by a laser light source, and simultaneously, rocking it in the vertical direction, too in a constant period. CONSTITUTION:A laser light source 1 is provided on a prescribed position A, a laser beam for scanning the horizontal face is emitted from the light sourece 1, and modulation is executed so that information indicating the light emitting direction is loaded on the laser beam in the horizontal direction. On the other hand, three photodetectors 3- which are placed in one line in every constant period are provided on a vehicle 2 being a moving body. These photodetectors 3- have a photodetecting face being long in the vertical direction, respectively, and are capable of photodetecting the laser beam in all directions regarding the horizontal direction. When the laser beam scans positions B, C and D of those photodetectors 3-, the laser beam is photodetected and demodulated, by which light emitting azimuth angles theta1, theta2 and theta3 of the laser beam are detected.
Abstract translation: 目的：为了完全执行车辆引导，通过提供沿车辆方向长的光检测器，还通过激光源在恒定周期内使激光发射体在水平方向上转动，同时沿垂直方向摆动， 也在一个不变的时期。 构成：在规定位置A上设置有激光光源1，从光照射1发射用于扫描水平面的激光束，进行调制，使得在激光束上载入表示发光方向的信息 水平方向。 另一方面，在作为移动体的车辆2上设置以每个恒定周期放置在一条线中的三个光电检测器3-。 这些光检测器3分别具有在垂直方向上长的受光面，并且能够在水平方向上在所有方向上对激光束进行光电检测。 当激光束扫描这些光电检测器3-的位置B，C和D时，激光束被光电检测和解调，由此检测激光束的发光方位角θ1，θ2和θ3。
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Patent Agency Ranking
公开(公告)号：JPS58175017A
公开(公告)日：1983-10-14
申请号：JP5749982
申请日：1982-04-07
Applicant: KUBOTA LTD
Inventor： HASHIMOTO OSAMI , FURUBAYASHI MITSUGI
Abstract: PURPOSE:To exclude the operation so as to make the running direction inductive, by providing plural beam projectors along a scheduled running course and providing a photodetector receiving the beam for straight and rotating induction and an automatic rotating mechanism for a car body. CONSTITUTION:When only a sensor (a) 5 receives the laser light, left and right shift of the car body from an optical axis of the laser light 2 is discriminated at a CPU9, a solenoid valve 13 is activated so as to make the car body steering in the opposing direction respectively, allowing to run the body in the stright direction. When a sensor (b) 6 receives the laser light 2 from the side of the car body, the solenoid valve 13 is driven so as to rotate the car body in the right direction. When the car body is rotated further and the sensor (a) 5 receives the laser light 2 in the next process, the activation of the solenoid valve 13 is stopped to obtain the straight line running and control mode, the car body is made inductive with the laser light 2 of the next process and goes straight.
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公开(公告)号：JPS58149515A
公开(公告)日：1983-09-05
申请号：JP3273082
申请日：1982-03-01
Applicant: KUBOTA LTD
Inventor： HASHIMOTO OSAMI , OKUYAMA SHIGEAKI , KUROIWA RIYOUZOU , TANAKA SHIGERU , HAYASHI MASAHIKO
Abstract: PURPOSE:To reproduce accurately the direction of a machine body, by detecting the turning angle of a grounding tool to control an automatic traveling vehicle of the teaching playback system. CONSTITUTION:A grounding tool 15, which is supported pivotally on the traveling machine body freely rotatably around the vertical axial line in a position separated from a grounding part 14 in the horizontal direction, and a turning angle detector 10 which detects the turning angle of the grounding tool 15 to the traveling machine body are provided. The turning angle of the grounding tool 15 is determined accurately by a traveling locus, and the angle detection signal from the turning angle detector 10 is stored in a storage device 23. A stored value reproduced from the storage device 23 is compared with the angle detection signal from the turning angle detector 10, and a steering wheel 2 is so controlled that they coincide with each other, and the machine body is turned, thereby reproducing accurately the direction of the machine body.
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公开(公告)号：JPS58149513A
公开(公告)日：1983-09-05
申请号：JP3121882
申请日：1982-02-26
Applicant: KUBOTA LTD
Inventor： HASHIMOTO OSAMI , FURUBAYASHI MITSUGI , FUJIWARA KOUJI , KUROIWA RIYOUZOU
Abstract: PURPOSE:To facilitate the teaching work, by turning on and off an operation changeover switch of a solenoid valve in accordance with the rotation direction of a steering operation wheel. CONSTITUTION:When a steering operation wheel 11 is rotated in a desired operation direction, one of the first and the second switches 19a and 19b is turned on or off to switch the solenoid valve. Simultaneously, a steering wheel and an attaching shaft are steered to a desired direction by the operation of an oil pressure cylinder which is operated in a constant speed. This steering operation is stored as turn-on/off signals of the first and the second switches 19a and 19b.
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公开(公告)号：JPS58144214A
公开(公告)日：1983-08-27
申请号：JP2656982
申请日：1982-02-19
Applicant: KUBOTA LTD
Inventor： OKUYAMA SHIGEAKI , HASHIMOTO OSAMI
Abstract: PURPOSE:To perform good automatic control of less course deviation without requiring a guide line covering all of the course, by providing a means for performing the copying control and a means for performing the teaching playback control. CONSTITUTION:A controlling circuit which drives left and right solenoids 13 and 14 of a solenoid valve consists of a guide line copying controlling part 15 and a teaching playback controlling part 16. The controlling part 16 is constituted with a microcomputer 17 as the center and operates a traveling vehicle so that a stored steering angle of the traveling vehicle is reproduced in accordance with the distance of traveling from the start point. The controlling part 15 is provided with guide line detectors 3 and 4 in the front and the rear of the vehicle body, and a left or right sensor S senses to issue high signals S1-S4, and these signals drive solenoids 13 and 14. Signals S1-S4 are inputted to the computer 17; and if they are L-level together, the computer 17 performs the teaching playback control.
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公开(公告)号：JPS5771301A
公开(公告)日：1982-05-04
申请号：JP14860980
申请日：1980-10-22
Applicant: Kubota Ltd
Inventor： HASHIMOTO OSAMI
IPC: A01B33/08
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