| 摘要 |
1. An elastically deformable diaphragm bellows comprises a plurality of ring diaphragms having inner edges and outer edges, wherein the inner edges define an inner opening and the inner edges and outer edges of adjacent ring diaphragms are alternately welded together, and at least one sliding ring which is secured in the inner opening of the diaphragm bellows and which has an inner surface for guiding the diaphragm bellows on a rod and an outer surface whose diameter is smaller than the diameter of the inner edge of the ring diaphragm and which is provided with an annular projection which protrudes radially outward or a plurality of projections which are spaced apart in circumferential direction, which projection or projections protrude(s) into the space between two ring diaphragms and secure(s) the sliding ring in a positive engagement against a displacement in axial direction of the diaphragm bellows, wherein the inner edges of the two ring diaphragms between which the projection or projections of the sliding ring is or are arranged rest on the outer surface of the sliding ring, and the inner edges of adjacent ring diaphragms are also arranged over the outer surface of the sliding ring in the contracted state of the diaphragm bellows.
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