| 摘要 |
A clamshell bucket of the present invention includes a shell which is opened or closed and installed in an arm; a first actuator unit opening and closing the shell; and a second actuator unit controlling the distance between the end of the arm and the shell. Therefore, the clamshell bucket may reliably open and close the shell and perform expansion operation. The clamshell bucket includes a body unit in which the shell and the first actuator unit are installed. One end of the second actuator unit is connected to the arm, and the other end is connected to the body unit for controlling the separated distance between the arm and the body unit. |
