| 摘要 |
1. Expanding bellows provided with annular expanding corrugation (2) of determined inner (3) and outer (4) diameters, with, inside each corrugation (2), annular reinforcing portions (10-13) arranged to be introduced each, into the tubular part of inner diameter (3) of the bellows (1) and be assembled as a reinforcing ring (6), as well as means (20) for blocking the annular portions (10-13), each annular reinforcing portion (10-13) having an inner arc (14, 16) and an outer arc (15, 17) of which the chords which subtend them have lengths at the most equal to the inner diameter (3) of the bellows (1), bellows characterized in that the inner chord of at least one of the annular portions (12, 13) is at least as large as the outer chord thereof. |
