| 摘要 |
Pneumatic support. The pneumatic support (1) has a first carrier means (2), a second carrier means (3), a first spring means (4), a second spring means (5), the two middle transverse faces (16, 19) of the first and second spring means (4, 5) are opposite each other and form a first working chamber (6) and the opposite transverse face (20) and the portion of transverse wall (11) are opposite each other and form a second chamber (7), a first hole (8) provides communication between the first working chamber (6) and the outer atmosphere and a second hole (9) in the portion of transverse wall (11) provides communication between the second chamber (7) and the outer atmosphere, the second spring means (5) being of low rigidity and having an overall thickness that varies, at most, in a ratio of 1 to 2 and, at rest, the middle transverse face (19) is separated from the middle transverse face (16) of the first spring means (4), while the opposite transverse face (20) is separated from the inner face of the portion of transverse wall (11). |
