| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an interference preventing device for limiting and reducing the operating speed of an actuator operating an attachment to prevent the interference of a cab of a work machine with the attachment when coming close thereto, while enabling free setting of an upper limit value for the operating speed when turning a limitation cancelling switch on. <P>SOLUTION: The interference preventing device comprises: a controller for limiting the upper limit value for the operating speed of the actuator within a speed reduction range between a speed reduction start line and a stop line set between the attachment and the cab; and a limitation cancelling switch for cancelling the speed reduction limitation of the actuator by the controller. The limitation cancelling switch is a proportional output switch which outputs a signal corresponding to its operation amount to the controller. The controller sets the upper limit value for the operating speed of the actuator at the time of cancelling the limitation, depending on the output signal. <P>COPYRIGHT: (C)2013,JPO&INPIT |
