| 摘要 |
A double-arm working machine equipped with an upper swing structure 3 including an operator cabin 4, with a left swing post 7a and right swing post 7b provided in front of the upper swing structure 3, and with a left work front A and right work front B provided on the left swing post 7a and the right swing post 7b, respectively, such that the work fronts A, B each sway vertically, further includes an interference prevention controller which, pursuant to a differential angle between the left and right work fronts A, B and to a command signal from an operating device, generates an output signal to swing the swing posts 7a, 7b. The interference prevention controller is constructed such that if a differential angle range in which the left and right work fronts A, B are likely to come into contact with each other is defined as an interference danger area (N), and an assigned differential-angle range contiguous to the interference danger area is defined as a semi-interference danger area, when the differential angle between the work fronts A, B is present in the semi-interference danger area (M) and the work fronts A, B approach each other, the controller reduces a signal level of an output signal which swings the swing posts 7a, 7b, and slows down a swinging operation of the work front which swings towards the other work front. This prevents damage to the left and right work fronts due to interference between the work fronts. |
