| 摘要 |
The present invention relates to a tong crane having a new structure to effectively fixate and transport a drum. According to the present invention, the tong crane includes tongs (A) comprising: a main body (20) connected to a wire (12); a first link member (30) hinge-mounted on a bracket (23) disposed in the main body (20) to be rotated inside and outside and extended downwards from the bracket (23); a second link member (40) hinge-mounted on the bracket (23) to vertically be rotated and extended from the bracket (23) to the outside; an elastic member (50) connected to the first link member (30) to elastically support the first link member (30); a pressing member (60) extended inside and outside, wherein a middle portion thereof is hinge-mounted on the first link member (30) to vertically be rotated, and a pressing unit (61) formed on an outside end and extended downwards to tightly press an outer circumferential surface of a protrusion (1a) of the drum (1); a connection member (70) hinge-mounted on the second link member (40) and the pressing member (60); and a drive means (80) disposed in the main body (20) to press an upper surface of an inside end of the pressing member (60) downwards to tightly press the pressing unit (61) of the pressing member (60) on the protrusion (1a) of the drum (1) or separate the pressing unit (61) from the protrusion (1a). The pressing unit (61) of the pressing member (60) is tightly pressed on a circumferential surface of the protrusion (1a) to prevent the drum (1) from separating. |
