Crawler crane car body weight supporting device
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United States of America Patent
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Apr 14, 2020
Grant Date -
Jan 25, 2018
app pub date -
Feb 8, 2016
filing date -
Feb 10, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
In a car body, a lower travelling body of a crawler crane includes a pair of left and right crawler frames, the car body connecting the crawler frames and supporting an upper slewing body, and a pair of car body weights are disposed on front and rear sides of the car body. The car body supporting device includes a supporting mechanism for movably supporting at least one of the paired car body weights, and a drive section for moving the car body weight supported by the supporting mechanism to thereby shift a center of gravity of the lower travelling body in a front and rear direction. The car body weight supporting device can improve postural stability.
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