| 摘要 |
PURPOSE: A ladder boom interlocking structure of a high ladder vehicle is provided to remove a winding drum for driving a driving wire by using a hydraulic cylinder to connect a first and a second stage ladder boom to be opened and closed, thereby facilitating the configuration of a device for opening and closing a ladder boom. CONSTITUTION: A ladder boom interlocking structure comprises a first stage ladder boom (10), a second stage ladder boom (20), a third stage ladder boom (30), a fourth stage ladder boom (40), a fifth stage ladder boom (50), and a sixth stage ladder boom (60). The first stage ladder boom is formed to have a first lower part pulley (11) on the inside lower end. The second stage ladder boom is combined with the inside the first stage ladder boom in an opened or a closed state, and formed to have a pair of second lower part pulleys (21) on the inside lower end and a pair of second upper part pulleys (22). The third stage ladder boom is combined with the second stage ladder boom inside the second stage ladder boom in an opening and closing state, and formed to have two pairs of third lower part pulleys (31) on the inside lower end and a pair of third upper part pulleys (32) on the upper end. The fourth stage ladder boom is combined with the third stage ladder boom inside the second stage ladder boom in the opening and closing state, and formed to have two pairs of fourth lower part pulleys (41) on the inside lower end and a pair of fourth upper part pulleys (42) on the upper end. |
