| 摘要 |
The present invention relates to a height adjusting type safety cover of an operation seat for an on-board crane. According to the present invention, the on-board crane comprises: a vehicle having an on-board part (10); a central rotary body (20) rotatably coupled to the on-board part (10); a boom (30) articulately and extendably coupled to the top of the central rotary body (20) and equipped with a gripping mechanism to move an article; and an operation seat (40) which operates the boom (30) at the upper side end of the central rotary body (20). The on-board crane is configured in a method such that: the crane is equipped with a safety cover (100) to protect an operator by being coupled to the upper side end of the central rotary body (20) while encompassing the operation seat (40); the safety cover (100) is formed in a circular body (101) having a cut surface (110) at a side to be rotatably coupled to the operation seat (40) and forms a sight window (120) to be viewed by an operator on the cut surface (110). Accordingly, the safety cover (100) can be rotated around a circular rail (200), and when the cut surface (110) becomes parallel with the upper surface of the on-board part (10), the height reaches the lowest point, and when the safety cover (100) is rotated and the sight window (120) faces the front, the operator can access through a door (140) and operate the crane. |
