| 摘要 |
Air from the nozzle (1), follows an air channel passing through the articulating joint. The joint has an inner section (6) and an outer section (5). All lip seals (9) between these sections, are molded onto the outer section (5) of the joint. The lip seals surround outer surfaces (10a, 10b, 10c) of the inner section (6). During use of the nozzle, air at ambient pressure acts against outer ends of the lip seals, causing them to rest on and seal against outer surfaces (10a, 10b, 10c) of the inner section (6) of the joint. |
