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Title:
FORESTRY MACHINE AND LEVELING APPARATUS FOR EXCAVATOR
Document Type and Number:
Japanese Patent JP2009114849
Kind Code:
A
Abstract:

To provide a forestry machine and a leveling apparatus for an excavator that can stably maintain the horizontal level of a swing body on an inclination of the rugged ground or a mountainous area.

The forestry machine and the leveling apparatus for the excavator comprise a swing bearing mounting plate 20 tiltably mounted to a lower part of a swing bearing 9; a support plate 40 having a pivot support part and a first piston holder; a tilt plate 30 including a first shaft 13 forming a first tilt shaft, and a second shaft 14 forming a second tilt shaft; a first actuator for swinging the first tilt shaft during extension and contraction driving; and a second actuator for swinging one side of the swing bearing mounting plate 20; wherein the tilt plate 30 has a vertical centerline crossing a centerline in the longitudinal direction of a lower frame, and the respective actuators are installed to be radially apart from the vertical centerline.


Inventors:
KIM IN WOO
PARK YOUNG OK
Application Number:
JP2008284020A
Publication Date:
May 28, 2009
Filing Date:
November 05, 2008
Export Citation:
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Assignee:
VOLVO CONSTR EQUIP AB
International Classes:
E02F9/10; A01G23/04; A01G23/08; E02F3/32
Domestic Patent References:
JPS55138523A1980-10-29
JPS6249004A1987-03-03
JP2002146847A2002-05-22
JPS55138523A1980-10-29
JPS6249004A1987-03-03
JP2002146847A2002-05-22
Attorney, Agent or Firm:
Kazuo Shigenobu
Hideo Shimizu
Yuichi Takagi
Yoshinao Nakano
Hideki Akiba