To provide a sulky rice transplanter capable of solving problems that operation of a handle during turning is complicated, there is no composure for correctly aligning a center position of a machine body to a work path line, and it is difficult for an operator to apply to lowering operation of a planting implement and planting drive turn-in operation.SOLUTION: A control part comprises mode switching means for switching a control mode of a travel steering unit between a small turn turning mode for independently steering each wheel so that the wheel is orthogonal to a line connecting a machine body turning center which is separated from a planting position on an innermost side in a turning direction by a distance almost equal to a half of a distance between planting rows and a drive rotation center of each wheel, in plan view, by a prescribed or greater amount of operation of a steering operation tool, and independently driving the wheels so as to make a peripheral speed ratio of the respective wheels equal to a plane distance ratio of drive rotation centers of the respective wheels, and an arbitrary turning mode for, in proportion to an operation amount of the steering operation tool, directing the respective wheels to tangential directions of circles where the same one point is a turning center, by steering, and independently driving the wheels so as to set the peripheral speed ratio of the respective wheels to be equal to a ratio of the plane distance between the same one point and the drive rotation center of the respective wheels.SELECTED DRAWING: Figure 13

    【課題】旋回中のハンドルの操作が煩雑で、作業経路線上に機体の真中を正確に合せる余裕、植付作業機の下降操作及び植付け駆動入操作に専念できなかった。【解決手段】制御部は、走行操舵装置の制御モードを、ステアリング操作具の所定以上の操作により、平面視で旋回方向最内側の植付位置から条間の略半分離れた機体の旋回中心と各車輪の駆動回転中心を結ぶ線と直交するように各車輪を独立して操舵し、且つ各車輪の周速比が旋回中心と各車輪の駆動回転中心との平面距離の比と同一となるよう独立駆動させる小回り旋回モードと、ステアリング操作具の操作量に比例して、各車輪の夫々が同一の一点を旋回中心とした円の接線方向を向くように操舵され、且つ各車輪の周速比を同一の一点と各車輪の駆動回転中心との平面距離の比と同一となるよう独立駆動させる任意旋回モードとに切替え可能なモード切替え手段を構成した。【選択図】図13


    Access

    Download


    Export, share and cite



    Title :

    SULKY RICE TRANSPLANTER


    Additional title:

    乗用型田植機


    Contributors:

    Publication date :

    2023-06-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    A01C Pflanzen , PLANTING / A01B SOIL WORKING IN AGRICULTURE OR FORESTRY , Bodenbearbeitung in Land- oder Forstwirtschaft / B62D MOTOR VEHICLES , Motorfahrzeuge



    SULKY RICE TRANSPLANTER

    ISHIDA ISAO | European Patent Office | 2021

    Free access

    SULKY RICE TRANSPLANTER

    TSUDA YOZO | European Patent Office | 2021

    Free access

    SULKY RICE TRANSPLANTER

    TSUDA YOZO / HAYASHIDA JUNICHI / KATO SHOTARO | European Patent Office | 2021

    Free access

    SULKY RICE TRANSPLANTER

    TSUDA YOZO | European Patent Office | 2021

    Free access

    SULKY RICE TRANSPLANTER

    TSUDA YOZO / HAYASHIDA JUNICHI / KATO SHOTARO | European Patent Office | 2021

    Free access