| 摘要 |
A seal structure (1) for connection sections, which facilitates installation and removal of a seal member from the connection sections. The seal member (4) is placed in the connection sections (12, 22) between a first part (2) and a second part (3). A first groove/ridge section (15) is formed at the connection section (12) of the first part (2), and a second groove/ridge section (25) is formed at the connection section (22) of the second part (3).The seal member (4) has, on one face, a first fitting section (32) fitting to the first groove/ridge section (15), and also has, on the other face, a second fitting section (33) fitting to the second groove/ridge section (25). Press-fitting interferences (34) in the wall-thickness direction are provided at the first and second fitting sections (32, 33). The seal member (4) has a protrusion section (35) protruding radially outward from an annular body section (31) where the first and second fitting sections (32, 33) are provided. The protrusion section (35) protrude to a position outside the connection sections (12, 22) of the first and second parts (2, 3).
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