| 摘要 |
PURPOSE:To enable an operator to know the condition of a work machine by detecting the position, attitude and working condition of the work machine, making a button arranged in a knob of a control lever project according to the detected results to stimulate the sense of a hand of the operator grasping the knob. CONSTITUTION:In the inside of a knob 1 is arranged a push type solenoid 4 with its front end shaft fitted with a button 3 and with a return spring 5 arranged between them. The lower end part of the solenoid 4 is connected to a wiring 7 located within a lever 2 and connected either to a detection means 8 attached to a work machine or to a detection means 9 attached to an actuator of the work machine. The respective detection means 8 and 8 detect the position, attitude and working condition of the work machine to excite the solenoid 4 according to the detected results and to push the button 3 out of a hole. Accordingly, an operator can learn the condition of the work machine accurately according to stimuli applied by the projection of the button 3 on his hand grasping the knob 1.
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