Provided in the present invention is a combine, which is connected to a plurality of operating devices by means of a plurality of control cables corresponding to each of the operating devices, is provided with an operating state conversion device that converts the operating state of the plurality of operating devices at an adequate time, and prevents a machine body from being enlarged. Here, the operating state conversion device (21) is arranged between a rear portion of a threshing device (8) and a rear portion of a grain storage unit (9). The plurality of control cables protrude after being extended from the operating state conversion device (21) towards the front side of the machine body. Furthermore, it has been desired that an installation process of the operating devices to operate a dusting device or a detachment process thereof should be easily performed. To this end, the present invention comprises: a dustproof unit which prevents dust from passing by means of a dustproof net, and allows external air inducted by a cooling fan to pass； a dusting device which removes the dust attached on the dustproof net； a driving device (1041) which is provided at a driving unit to operate the dusting device； a cover side locking unit (1051) which can lock a front portion of the driving device (1041)； a locked unit (1052) which is provided at the front portion of the driving device (1041)； and a connecting device (1053) which connects the rear portion of the driving device (1041) to a cover of the driving unit, wherein the connecting device (1053) can be converted into a connection state in a state that the locked unit (1052) is locked at the cover side locking unit (1051), and, when the connecting device (1053) is converted into a disconnection state, the cover side locking unit (1051) and locked unit (1052) can be converted into an unlocked state.복수의 작동 장치에 각각의 작동 장치에 대응하는 복수의 조작 케이블을 통해 연동 연결되고, 복수의 작동 장치의 작동 상태를 적절한 타이밍에 전환하는 작동 상태 전환 장치를 장비하면서 기체의 대형화를 피할 수 있는 콤바인을 제공
