| 摘要 |
FIELD: transport.SUBSTANCE: invention relates to vehicles equipped with air ventilation means. Agricultural vehicle (1) has driver cabin (2), means for supplying fresh air to driver cabin (2) and exhaust air path (27, 26, 18) from driver cabin (2) into open. Exhaust air path (27, 26, 18) passes in cabin roof and comprises check valve (22, 23) for preventing air flow from open into cabin, and check valve (22, 23) has a rigid plate (22) as a closing member. Outlet (17) of exhaust air path is formed in bottom side (15) of projecting portion (10) of roof (9). Plate is configured for movement of seat (23) essentially upwards.EFFECT: higher reliability.8 cl, 2 dwg |
