Title:
OPERATION ROOM FOR WORKING MACHINE
Document Type and Number:
Japanese Patent JP3245242
Kind Code:
B2
Abstract:
PURPOSE: To diminish the natural oscillation number of an operation room and improve riding comfort by regulating the oscillation of the operation room to the front, rear, left, and right with torsional oscillation from a main body frame.
CONSTITUTION: The link rods 32, 32 of a torsion bar 31 are connected to fitting brackets 29, 29 arranged on the floor plate 24 of an operation room main-body 22, and the respective link rods 32 are connected to fitting brackets 30, 30 fitted firmly on the respective bearing sections 21B of a swing frame 21, via a connecting rod 33 having a high spring constant to a torsional force. Then, on the link rods 32 of the torsion bar 31, a parallel link mechanism is composed of link rods 36 arranged rotatably via fitting brackets 34, 35 between the floor plate 24 and the high rigid section 21A of the swing frame 21, and the link rods 32 of the torsion bar 31. Even in a case that the bearing frames 21B of the swing frame 21 are oscillated in the direction of an arrow head B, the oscillation of the operation room main-body 22 in the front and rear directions can be converted to oscillation in the upper and lower directions, and the pitching of the operation room main-body 22 in the front and rear directions can be firmly suppressed.
Inventors:
Katsumi Miyaki
Takayuki Sato
Takeshi Higuchi
Zenji Kaneko
Takeshi Sakyo
Takayuki Sato
Takeshi Higuchi
Zenji Kaneko
Takeshi Sakyo
Application Number:
JP35203892A
Publication Date:
January 07, 2002
Filing Date:
December 09, 1992
Export Citation:
Assignee:
Hitachi Construction Machinery Co., Ltd.
International Classes:
B62D27/04; B62D24/02; E02F9/16; (IPC1-7): E02F9/16; B62D24/02
Domestic Patent References:
| JP5321295A | ||||
| JP5255950A | ||||
| JP3200485A | ||||
| JP450460U |
Attorney, Agent or Firm:
Kazuhiko Hirose