| 摘要 |
<p>The device (1) closes an air chamber (2) made of flexible material, generally of toric shape. There is a cylindrical sleeve (3) of elastomer (or similar material) with a central opening (4). A metal washer (5) which adheres well to the sleeve, is housed in it. The washer has an internal thread (6) into which is screwed a valve (7) of car tyre type. This valve has a part (7b) threaded, it also has a coned part (7d) which presses and seals on the washer (5). The valve has a body (7c) and a sliding rod (7a) to give unseating for inflating the chamber. The assembly is held to the chamber exterior by a part (10) fixed by adhesive.</p> |
