| 摘要 |
PURPOSE: To provide an air spring device which can supply pressurized air into an air chamber even under such a condition that the piston of the air spring device is tightly stuck on bound stopper rubber. CONSTITUTION: In an air spring device in which an air chamber 15 is formed between relatively movable upper/lower pistons 11, 10, bound stopper rubber 14 which interferes the collision with the upper piston 11 is provided to the lower piston 10, and also air supply passages 16a-16b are formed by being passed through the lower piston 10 and the bound stopper rubber 14, grooves 17 by which the opening part of the air supply passages 16 and the outer circumferential air chamber 15 communicate with each other, is formed on a contact surface between the upper piston 11 and the bound stopper rubber 14. |
