| 摘要 |
PURPOSE:To eliminate the need of providing a guide part on a side pole part so as to widely secure the field of view in front of a cabin by opening a window by the pulling operation of a first cable and the pulling operation of a second cable, and closing the window by the push operation of the first cable. CONSTITUTION:A first cable 1 is arranged in a ceiling of a cabin C through a driving device 4 arranged in the rear of the cabin C. A second cable 2 is extended from the driving device 4 and passed through the ceiling of the cabin C to be arranged in the front side pole part of the cabin C. An inner cable of the first cable engaged with a second gear 17 by rotation of the second gear 17 is pulled to open a window W. An inner cable of the second cable 2 engaged with a third gear 18 is pulled and driven to open the window. The inner cable of the first cable 1 engaged with the second gear 17 is pushed, and the second cable 2 is also operated in the push direction to close the window. |
