Abstract: A window stabilization mechanism includes a rail provided on a first cabin frame provided on one side of a window, and has a first end and a second end opposite to the first end in the lengthwise direction of the rail. A sliding member is provided on a windowpane and is configured to slide on the rail. The sliding member is located at a first end when the window is opened and at a second end when the window is closed. A lock mechanism is configured to lock the windowpane to the first cabin frame when the window is closed. A window support member is configured to abut on the windowpane when the window is closed, and to press the windowpane in an oblique direction from the windowpane toward the rail and from the second end toward the first end when the windowpane is locked by a lock mechanism.

Abstract: A window stabilization mechanism includes a rail provided on a first cabin frame provided on one side of a window, and has a first end and a second end opposite to the first end in the lengthwise direction of the rail. A sliding member is provided on a windowpane and is configured to slide on the rail. The sliding member is located at a first end when the window is opened and at a second end when the window is closed. A lock mechanism is configured to lock the windowpane to the first cabin frame when the window is closed. A window support member is configured to abut on the windowpane when the window is closed, and to press the windowpane in an oblique direction from the windowpane toward the rail and from the second end toward the first end when the windowpane is locked by a lock mechanism.