| 摘要 |
A working vehicle comprising a translational extension and retraction mechanism which is configured of working booms (7, 8) combined in a nested configuration. The working vehicle is provided with: rollers (1) which are disposed at the overlap portion (17) between the two working booms (7, 8) which extend and retract relative to each other in a translational manner, the rollers (1) sliding on one of the two working booms (7, 8); and a pad (3) which is provided at the overlap portion (17) between the two working booms (7, 8) and which makes contact with said working boom only when a load having a magnitude greater than or equal to a predetermined level acts on the rollers (1). The configuration enables the working boom to be supported by both the pad (3) and the rollers (1) when a high load is applied, and thus, the working vehicle having the translational extension and retraction mechanism which is lightweight and does not deform even under the high load is provided. |
