| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a preventing device for the vibration of a liftable cab of a construction machine capable of establishing stability by preventing the cab from oscillation (swings) to left and right even if operation is conducted with the cab located at high lift position. <P>SOLUTION: A vibration isolating cylinder 17 is installed between a left and a right lower link 11, and when the cylinder 17 is in the elongated condition, the lower links 11 move outward in the left-right direction and are put in the fixed condition as abutting by pressure to outer supporting pieces 8b and 13b, while the area between inner supporting pieces 8a and 13a is put in the vibration isolating condition with a total gap S of the left and right gaps reserved (S=S1+S2), so that the oscillation (swings) in the left-right direction of the cab 4 is precluded to assure stability even if the operation etc. is conducted with the cab 4 located at high lift position. <P>COPYRIGHT: (C)2007,JPO&INPIT |
