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    AUTOMATIC TRAVELING VEHICLE
    44.
    发明专利
    AUTOMATIC TRAVELING VEHICLE 失效

    公开(公告)号：JPS58144215A

    公开(公告)日：1983-08-27

    申请号：JP2657382

    申请日：1982-02-19

    Applicant: KUBOTA LTD

    Inventor： HASHIMOTO OSAMI ,  OKUYAMA SHIGEAKI ,  ITOU KATSUMI ,  TANAKA SHIGERU

    IPC: A01B69/00 ,  G05D1/02

    Abstract: PURPOSE:To synchronize the distance of treveling of a wheel and the extent of running of a tape with each other, by generating an output voltage corresponding to the rotation speed of the wheel and rotating and driving a DC motor for driving a tape recorder by this output voltage. CONSTITUTION:In case of teaching, a low potential is recorded in the left and the right on a tape recorder 12 when switches 13 and 14 are turned on, and a high potential generated in a resistance 16 is recorded there when these switches are turned off. In case of automatic traveling, the recorded potential signal is taken out from the recorder 12 and is inputted to differential amplifiers 17 and 18. Since a bias potential of the resistance 16 is inputted to the other inputs of amplifiers 17 and 18, output voltages are generated in amplifiers 17 and 18 when the low-potential signal is inputted. Solenoids 9 and 10 are operated by these output voltages. A voltage obtained by converting the rotation speed of a bevel pinion part for traveling to a voltage is inputted to a DC motor 21, which drives the recorder 12, from a rotation number detector 26 as the power source for the motor 21. Thus, automatic treveling is performed in accordance with teaching.

    RUNNING SPEED CHANGING APPARATUS FOR TRACTOR
    47.
    发明专利
    RUNNING SPEED CHANGING APPARATUS FOR TRACTOR 失效

    公开(公告)号：JPS5667630A

    公开(公告)日：1981-06-06

    申请号：JP14487079

    申请日：1979-11-06

    Applicant: KUBOTA LTD

    Inventor： NAKAMURA NORIMI ,  HASHIMOTO OSAMI ,  OKUYAMA SHIGEAKI

    IPC: B60K17/356 ,  B60K17/10 ,  B60K20/02

    Abstract: PURPOSE:To favorably effect radical speed change in a wide range, by connecting a driving mechanism and a speed change apparatus operated by it through a motor driven friction gearing mechanism such that they can be relatively displaced. CONSTITUTION:The first operation arm 17 is coactively connected through a rod 21 with a swingable arm 20 that is swingably operated by a motor 19 and the motor 19 is automatically rotated forward or backward in a manner that, on a detected result of the first speed detecting apparatus 22 for detecting a revolutional speed of a shaft 1a bearing front wheel 1 as an output revolutional speed of a stepless speed change gear of the front wheels, a detected value of the second speed detecting apparatus 23 for detecting an output revolutional speed of a rear wheel driving motor 12 becomes a predetermined relation for the value of the apparatus 22. Since an operation arm 18 is connected to a lever 14 through an expandable rod 24 that comprises the first rod 24a and the second rod 24b with them engaged and connected expandably each other within a definite short range, when the lever 14 is operated radically in a wide range, speed change is desirably corrected by the motor 19.

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