Komatsu Corporation

Shinya Nakamura

Shinji Mitsuta

Hiroyuki Itoh

Tsuyoshi Yoshida

Masatake Tamaru

Toshio Yamashita

Souichi Tsumura

Tetsunori Yamashita

There is provided a running device for track-laying vehicle, which can resolve a feeling of fear of falling height in a leading end portion of a crawler while relax a large impact when the crawler runs over a raised contact area. The running device includes a spring constant equalizing unit that equalizes an apparent spring constant of a second arm of lower track roller bogie device over a total length. The apparent spring constant is generated in maximum reverse camber of the crawler. The spring constant equalizing unit increases an oscillation angle &#x3b1; of the second arm that can abut on the first arm in the maximum reverse camber of the crawler such that the oscillation angle &#x3b1; of the second arm is larger than a crossing angle &#x3b2; of the connecting link. Desirably the increased maximum oscillation angle of the second arm is 1.3-2.0 times the crossing angle &#x3b2;.

Running device for track-laying vehicle

A vibration isolator includes layered rubbers interposed between a support body and a movable body, and a pair of dampers attached to the support body at one ends and to the movable body at the other ends. The layered rubbers are arranged to be spaced apart in an anterior and posterior direction and in a left and right direction, with reference to a direction in which an operator faces when seated. One of the dampers is arranged at a position corresponding to a middle of the left and right direction between the layered rubbers arranged in the left and right direction, and aligned in the anterior and posterior direction. The other one of the dampers is arranged closer to an anterior side than a middle of the anterior and posterior direction between the layered rubbers arranged in the anterior and posterior direction, and aligned in the lift and right direction.

Damping device

Growing community of inventors

Hiratsuka, Japan

Shinya Nakamura