| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotational reaction transferring mechanism for a pit excavator, which can transfer large rotational reaction to a track frame having a limited width without boosting the rotational reaction transferring mechanism. SOLUTION: A construction vehicle is formed by arranging a traveling body 5 on a track frame main body 1. By using a composite bracket 2 arranged on the track frame main body 1 of the construction vehicle, a joint pivoting bracket 4b arranged on a casing driver 4, and a joint 6 connecting both the brackets 2 and 4b together, the joint 6 is pivoted on the joint pivoting bracket 4b via a joint installing piece 6a by means of a pin 6b. As a result, the casing driver 4 is connected to the track frame main body 1 in a manner being tiltable in rightward and leftward directions. Further, a spacer 7 abutting the casing driver 4 is provided, to thereby transfer the rotational reaction of the casing driver 4 to the traveling body 5.
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