| 摘要 |
PURPOSE:To open a window plate sufficiently without excessively projecting it from a cabin rooof by a method wherein a window plate is first rotated to open outwardly and then it is moved upwardly along the extension line thereof. CONSTITUTION:A bracket 5 is provided on a frame 4 of a rear frame 3 for the cabin 1, and one end of a lower arm 6 is pivotably fitted to the bracket 5. The other end of the arm 6 is pivotably fitted to a bracket 8 provided at a lower part of the window plate 7. A guide rail 10 is attached to a frame of the window plate 7, and a movable body 13 is fitted in a guide groove of the rail 10 so that it can be moved in the vertical direction. The movable body 13 has a pivotal fitting part 13a, to which one end of an upper arm 12 is pivotably fitted, and the other end of the arm 12 is pivotably fitted to a bracket 11 fixed to the frame 4. The window plate 7 is supported on the frame 4 by an oil damper 14. |
