| 摘要 |
PURPOSE: A boom structure for a high-place operation vehicle is provided to be stably operated by reducing frictional force and vibration in stretching operation of a boom, using support rollers installed on the front and rear ends of the boom. CONSTITUTION: A boom structure for a high-place operation vehicle comprises a first boom, a second boom(20), a first roller bracket(22) and a first roller(23). The first boom has a hollow shape. The second boom is slidably located in the first boom. A first bracket mount(21) is formed on the top of one end of the second boom. The first roller bracket is mounted on the first bracket mount. The first roller bracket is located to be corresponded to the inner side of the first boom. The first roller is mounted on the top of the first roller bracket. The first roller makes contact with the inner side of the first boom.
|
