The vibration of a cab deck as well as the mass of a deck supporting member is suppressed. A slewing frame 10 of an upper slewing body 1 includes a front plate 17 connected to a second side plate 15B. A cab deck 30 is disposed on a front side X1 of an engine deck 20 with a gap S between the cab deck 30 and the engine deck 20. A deck supporting member 40 is connected to the second side plate 15B and the cab deck 30. When viewed along an up-and-down direction Z, a connection portion of the front plate 17 to be connected to the second side plate 15B is opposed to, in the lateral direction Y via the second side plate 15B, a connection portion of the deck supporting member 40 to be connected to the second side plate 15B.
UPPER SLEWING BODY
2019-05-23
Patent
Electronic Resource
English