PROBLEM TO BE SOLVED: To suppress the shortening of a pitching cylinder, and to solve a problem that a machine body frame of a working vehicle and a fuel tank interfere with a traveling crawler.SOLUTION: A traveling device of a working vehicle comprises: front-side left and right rolling arms (14) and rear-side left and right rolling arms (14) which turn by telescopic operations of left and right rolling cylinders (13), independently ascend and descend left and right traveling devices (2, 2) to left and right directions with respect to a vehicle body, and adjust left and right inclinations of the vehicle body; and a pitching arm (20) which turns by a telescopic operation of a pitching cylinder (19), ascends and descends turning axial cores of the rear-side left and right rolling arms (14) with respect to the vehicle body, and adjusts fore-and-aft inclinations of the vehicle body. A regulation member (24) for regulating the shortening of the pitching cylinder (19) caused by the leakage of working fluid of the pitching cylinder (19) is arranged between the rear-side rolling arms (14) and the pitching arm (20).SELECTED DRAWING: Figure 2

    【課題】ピッチングシリンダの短縮を抑制し、作業車の機体フレームや燃料タンクが走行クローラと干渉する問題を解消する。【解決手段】左右のローリングシリンダ(13)の伸縮作動によって回動し、左右の走行装置(2,2)を車体に対して左右独立して昇降させてこの車体の左右傾斜を調節する前側の左右のローリングアーム(14)および後側の左右のローリングアーム(14)と、ピッチングシリンダ(19)の伸縮作動によって回動し、後側の左右のローリングアーム(14)の回動軸心を車体に対して昇降させてこの車体の前後傾斜を調節するピッチングアーム(20)を備え、後側のローリングアーム(14)と前記ピッチングアーム(20)との間に、ピッチングシリンダ(19)の作動油のリークによる該ピッチングシリンダ(19)の短縮を規制する規制部材(24)を設ける。【選択図】図2


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    Title :

    TRAVELING DEVICE OF WORKING VEHICLE


    Additional title:

    作業車の走行装置


    Contributors:

    Publication date :

    2017-11-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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