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    • 132. 发明授权
    • Tree feller-buncher
    • 树式伐木机
    • US4763742A
    • 1988-08-16
    • US11518
    • 1987-02-05
    • Frederic E. Langford
    • Frederic E. Langford
    • A01G23/081B62D55/06B62D55/065B62D55/08
    • B62D55/062A01G23/081B62D55/065
    • A four track vehicle especially adapted for logging on steep slopes includes a running unit and an upper unit. The upper unit is articulated relative to the lower unit to maintain a center of gravity within the four tracked pods upon which the running unit is mounted. Sensing systems are utilized to alert the operator when the machine is in an anticipitated tipping condition. Moreover, a unique suspension system combining a torsion frame and swingable pod mounting arms are employed. The pods are locked in position when the vehicle is in an operating mode and are unlocked when the vehicle is in a travel mode.
    • 特别适用于陡坡登陆的四轨车辆包括行驶单元和上部单元。 上部单元相对于下部单元铰接,以将重心保持在安装有运行单元的四个跟踪舱内。 当机器处于预期的倾翻状态时,感应系统被用于警告操作者。 此外,采用了结合扭转框架和可摆动的荚安装臂的独特的悬挂系统。 当车辆处于操作模式时,荚被锁定在适当位置,并且当车辆处于行驶模式时被解锁。
    • 134. 发明授权
    • Four-track vehicle
    • 四轨车
    • US3690396A
    • 1972-09-12
    • US3690396D
    • 1971-01-28
    • SAMUEL R COLOSIMO
    • COLOSIMO SAMUEL R
    • B62D55/06B62D55/065B62D55/10
    • B62D55/06B62D55/065
    • A vehicle is provided with four laterally spaced track units, each of which includes a travelling endless track. Above the track units there is a chassis floor, from which laterally spaced rigid members extend down between the track units. Means are provided for connecting the track units to these rigid members beside them to support the floor. Such means, which include horizontal pivots, are constructed and arranged to allow the track units to tilt laterally. The drive shafts for the endless tracks are so constructed as not to interfere with tilting of the track units. At the back of the vehicle, readily accessible means are provided for taking up slack in the endless tracks.
    • 车辆设置有四个横向间隔的轨道单元,每个轨道单元包括行进的环形履带。 在轨道单元上方有一个底盘底板,横向间隔的刚性构件在轨道单元之间向下延伸。 提供了用于将轨道单元连接到它们旁边的这些刚性构件以支撑地板的装置。 这种包括水平枢轴的装置被构造和布置成允许轨道单元横向倾斜。 用于环形轨道的驱动轴被构造成不干扰轨道单元的倾斜。 在车辆的后部,提供容易接近的装置,用于在无尽的轨道中卷起松弛。