Title:
CONSTRUCTION MACHINE AND ITS DISMANTLING METHOD
Document Type and Number:
Japanese Patent JP2009002018
Kind Code:
A
Abstract:
To improve assembling performance and disassembling performance while maintaining the performance of a machine without greatly changing dimensions of a boom.
A main boom 4 is connected to an upper structure 3 (a construction machinery body) in such a manner as to be freely raised and brought down. A front boom 6 is rotatably connected to the main boom 4. An arm 7 is rotatably connected to the front boom 6, and a tip attachment is attached to the tip of an arm 7. The front boom 6 is rotated by expanding and contracting a jib cylinder 12. The side of a tube 12a of the jib cylinder 12 is connected to the front boom 6, and the side of a rod 12b is connected to the main boom 4.
Inventors:
KOGA NOBUHIRO
NAKAMURA TAKANOBU
NAKAMURA TAKANOBU
Application Number:
JP2007162674A
Publication Date:
January 08, 2009
Filing Date:
June 20, 2007
Export Citation:
Assignee:
KOBELCO CONSTR MACHINERY LTD
International Classes:
E02F9/00; E02F3/36
Domestic Patent References:
| JP2004132115A | 2004-04-30 | |||
| JPH0510039Y2 | 1993-03-11 |
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
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