초록 ▼

An air-adjustable shock absorber is pivotally connected at its ends to first arms of a front end of a back crank arm system, which are pivotally mounted to the vehicle chassis at the front and back of the same between the upper and lower runs of the endless track of the vehicle. The second arms of t

An air-adjustable shock absorber is pivotally connected at its ends to first arms of a front end of a back crank arm system, which are pivotally mounted to the vehicle chassis at the front and back of the same between the upper and lower runs of the endless track of the vehicle. The second arms of the front and back crank arm systems are connected to the front and back portion of the slides which engage the upper surface of the ground-engaging run of the endless track. The air pressure within the shock absorber unit biases the two crank systems in a direction so as to move the slides downwardly from the vehicle chassis. An air circuit system enables the driver to control the air pressure depending on the load carried by the vehicle. The crank systems are such that a greater proportion of the load is carried by the back of the suspension.

대표청구항 ▼

In an endless track vehicle including a chassis having a front end portion and a rear end portion, a flexible endless track for supporting said chassis and including a ground-engaging lower run and an upper return run, longitudinally-extending rigid slides engaging the upper face of said ground-enga

In an endless track vehicle including a chassis having a front end portion and a rear end portion, a flexible endless track for supporting said chassis and including a ground-engaging lower run and an upper return run, longitudinally-extending rigid slides engaging the upper face of said ground-engaging run, front and rear brackets fixed at longitudinally-spaced areas of each of said slides and upstanding from the latter, a first shaft rotatably carried by, and transversely of, said chassis at its front end portion, first crank arms having one end pivotally connected to the respective ones of said front brackets and their other ends fixed to said first shaft, a second crank arm fixed to said first shaft, a second shaft rotatably carried by and transversely of said chassis at its rear end portion, a crank lever fixed to said second shaft intermediate its ends, linkage means interconnecting said rear bracket s and one end of said crank lever, an air-adjustable shock-absorber unit pivotally interconnecting the other end of said crank lever and said second crank arm, extension of said air-adjustable shock absorber unit causing said slides to move away from said chassis, and further including means to adjust the air pressure within said unit.