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A method for the automatic control of the opening and closing of the window of the driver's cab of a work vehicle as well as a device for practical application of the method
A method for the automatic control of the opening and closing of the window of the driver's cab of a work vehicle as well as a device for practical application of the method
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机译:自动控制作业车辆的驾驶室的窗户的打开和关闭的方法以及该方法的实际应用的装置
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摘要
A method of automatically controlling the opening and closing of a driver's cab of a working vehicle, and an apparatus for practicing the same method which are capable of carrying out the opening and closing of such a window smoothly and the shutting of such a window reliably, and having a high operability and a high safety. To obtain such effects, the apparatus is provided with a window (14) movable along guide rails (20L, 20R, 22L, 22R) extending between a window frame and a top wall, a driving cable (28) for moving the window (14) vertically by operating a driving means (34), locking units (29L, 29R) adapted to press the window against a window frame of a driver's cab and shut up the same, and a controller (50) for controlling these operations. In this apparatus, the locking units (29L, 29R) are provided with means (47L, 47R) for detecting a terminal position for a downward movement of the window during a window closing operation, a circuit for detecting a locking motor driving current during a window shutting operation, and means (48L, 48R) for detecting limit positions for backward movements of locking members during a window shutting force releasing operation; and the controller (50) is provided with a delay circuit (59), an element (54) for eliminating slack in the driving cable, an element for shutting up the window (14), and a window shutting force releasing element (52).
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