| 摘要 |
PURPOSE:To enhance the comfort to sit in a cab by holding the piston rod with possibility of relative displacement with respect to the cab side. CONSTITUTION:In the non-tilting condition, the piston rod 13 of an oil-hydraulic cylinder 12 is drawn to the lowest position, and the recess 19a and a pin 19b provided at this piston rod are perfectly separted from a connecting pin 21 and a recess 6b on the cab side. Accordingly the oil-hydraulic cylinder 12 is held by a link rod 15 in the condition with possibility of relative displacement with the cab side without requiring operating the piston rod 13. In the fully tilted condition, the center of gravity of the cab 1 has shifted ahead the tilt center 7 and a tensile load is applied to the part of detention 19 between the coupling mechanism 14 of cab 1 and the piston rod 13, but this tetention part 19 of the piston rod 13 will be never separated from the coupling mechanism 14 because the abovementioned pin 19b at the detention part 19 is fitted in the recess 6b in the bracket 6. Thus the safety is secured. |
