| 摘要 |
<p>PURPOSE:To provide a vacuum pipe fitting which can exhibit a suitable fastening force, which can reduce the number of components while shorten the time of the assembly thereof. CONSTITUTION:In order to stop the insertion of a hard tube 2 into a rubber fitting body 11 at a predetermined depth, a step part 12 is formed in the fitting part 11, and the inner diameter of the insertion part of the fitting part 11 which terminates at the step part 11, is made to be slightly small than the outer diameter of the hard tube 2. With this arrangement, a suitable fastening force can be obtained only by inserting the hard tube 2 into the fitting body 11, and accordingly, it is possible to reduce the number components and to shorten the time of the assembly.</p> |
