Revolving frame for work machine, and work machine provided with same
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United States of America Patent
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Jul 14, 2020
Grant Date -
N/A
app pub date -
Mar 30, 2017
filing date -
Mar 30, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
Lifting performance of a work machine is increased while suppressing an increase in a vehicle weight. When a slewing frame is seen from a side, a first reinforcement member is provided from a boom foot section to a front side part of a slewing bearing, a second reinforcement member is provided from the boom foot section to a mast foot section, and a third reinforcement member is provided from the mast foot section to a rear side part of the slewing bearing. Furthermore, a fourth reinforcement member is provided from a middle region (M) located at an upper end portion of the slewing frame and above a rear portion of the slewing bearing to the front side part of the slewing bearing, and a fifth reinforcement member is provided from the middle region (M) to the rear side part of the slewing bearing.
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