A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Upper slewing body
Provided is an upper slewing body which enables a working space for installing and removing a boom foot pin without removal of a housing box to be secured. A boom foot pin 25 is attached to a pair of vertical plates 22 so as to be able to be pulled out along an axial direction D1 of the boom foot pin 25. A housing box 30 has a box main body 31 with a housing space S inside and an opening/closing lid configured to allow an opening region 31a of the box main body 31 to be opened and closed. The box main body 31 is disposed on the right of the right vertical plate 22 in a state where the boom foot pin 25 is placed opposite the housing space S with reference to the opening region 31a in a side view in which the upper slewing body 12 is viewed along an axial direction D1 and the box main body 31 is shaped to open the boom foot pin 25 in the axial direction D1. The opening/closing lid 35 is rotated to a position where the opening region 31a is closed to lie at a position where the opening/closing lid 35 overlaps the boom foot pin 25 in the side view, and is rotated to a position where the opening region 31a is opened to lie at a position where the boom foot pin 25 is opened in the axial direction D1.
Upper slewing body
Provided is an upper slewing body which enables a working space for installing and removing a boom foot pin without removal of a housing box to be secured. A boom foot pin 25 is attached to a pair of vertical plates 22 so as to be able to be pulled out along an axial direction D1 of the boom foot pin 25. A housing box 30 has a box main body 31 with a housing space S inside and an opening/closing lid configured to allow an opening region 31a of the box main body 31 to be opened and closed. The box main body 31 is disposed on the right of the right vertical plate 22 in a state where the boom foot pin 25 is placed opposite the housing space S with reference to the opening region 31a in a side view in which the upper slewing body 12 is viewed along an axial direction D1 and the box main body 31 is shaped to open the boom foot pin 25 in the axial direction D1. The opening/closing lid 35 is rotated to a position where the opening region 31a is closed to lie at a position where the opening/closing lid 35 overlaps the boom foot pin 25 in the side view, and is rotated to a position where the opening region 31a is opened to lie at a position where the boom foot pin 25 is opened in the axial direction D1.
Upper slewing body
KANAMARU HIROSHI (author) / ADACHI KAORU (author) / OZAKI MASAKAZU (author)
2015-07-22
Patent
Electronic Resource
English
IPC:
E02F
Baggern
,
DREDGING