| 摘要 |
<p>PURPOSE:To improve durability while eliminating directivity which involves change of bending rigidity according to the direction of bending of a leading pipe part formed by bellows. CONSTITUTION:Inner covers 3, 4 provided with spherical surfaces 3a, 4a formed around the bend center point 0 of a bellows 1 on their respective outer circumferences are provided on the outer circumference of the bellows 1, and small diameter parts 3b, 4b of respective inner covers 3, 4 are fixed on the end parts of the bellows 1. Outer covers 5, 6 for covering both inner covers 3, 4 are connected to each other integratedly, and a sealing 7 made of press- worked, metal wire is stored between the inner cover 3 and the outer cover 5. In the same way, a sealing 8 is stored between the inner cover 4 and the outer cover 6.</p> |
